Emerson X-web300 User manual

IC200L Series
User manual
DIXELL
INDEX
1
GENERAL ADVICE
7
2
GENERAL FEATURES
8
2.1
MAIN FUNCTION
8
3
IC200 L TABLE OF THE FEATURES
10
4
USER INTERFACE
11
4.1
4.2
4.3
4.4
4.5
4.6
4.7
4.8
FUNCTION OF THE LEDS OF THE KEY BUTTONS
USE OF THE LED ON THE MODELS VI620 - VI620S REMOTE PANELS
USE OF THE LED ON THE MODELS VI820 - VI820S REMOTE PANELS
KEY FUNCTION
KEY COMBINANTION
LED AND ICONS
DISPLAY AND ICONS
MEANING/ FUNCTIONNING OF THE BOTTOM DISPLAY LED
5
REMOTE TERMINAL
17
6
FIRST INSTALLING
17
6.1
6.2
ON BOARD CLOCK (OPTIONAL)
RTC SETUP
7
WIRING CONNECTIONS
7.1
7.2
7.3
7.4
7.5
7.6
7.7
7.8
7.9
7.10
7.11
7.12
7.13
7.14
HARDWARE RESOURCES FOR IC260L - IC280L MODELS
HARDWARE RESOURCES FOR IC261L - IC281L MODELS
ANALOG INPUTS NTC – PTC PROBES
DIGITAL INPUTS
ANALOG INPUT FOR PRESSURE TRANSDUCER PP30 (4 ÷ 20MA SIGNAL)
ANALOG INPUT FOR PRESSURE RATIOMETRIC TRANSDUCER PPR30 (0 ÷ 5V SIGNAL)
PWM OUTPUT FOR CONDENSING FAN SPEED CONTROL
FAN CONDENSING CONTROL: 0 ÷ 10VDC OUTPUTS
FAN CONDENSING CONTROL WITH 4÷20MA OUTPUT
PROPORTIONAL OUTPUTS 0 ÷ 10V DUMPER CONTROL
PROPORTIONAL OUTPUTS CONFIGURED FOR AUX RELAY CONTROL
HOT KEY 64 CONNECTION
XJ485 CONNECTION
REMOTE PANELS VI620 – VI820
8
ANALOG AND DIGITAL OUTPUT CONFIGURATION
8.1
8.2
8.3
8.4
8.5
8.6
8.7
ANALOG INPUT PB1 - PB2 - PB7 - PB8 - PB9 - PB10
ANALOG INPUT CONFIGURATION PB3 - PB4 - PB5 - PB6
DIGITAL INPUT CONFIGURATION ID1 – ID18
DIGITAL OUTPUT (RELAY) CONFIGURATION RL1- RL14
CONDENSER PROPORTIONAL CONTROL CONFIGURATION (2 OUTPUTS)
PROPORTIONAL OUTPUT CONFIGURATION 0 ÷ 10 VDC (4 OUTPUTS)
OTHER OUTPUTS
9
TABLE OF THE PARAMETERS
28
10
PROGRAMMING WITH THE “HOT KEY 64”
41
10.1
10.2
DOWNLOAD: HOW TO PROGRAM AN INSTRUMENT WITH A PROGRAMMED “HOT KEY”
UPLOAD: HOW TO PROGRAM A “HOT KEY” WITH THE PARAMETERS OF THE INSTRUMENT
11
PROGRAMMING USING THE KEYBOARD
42
11.1
11.2
11.3
11.4
11.5
11.6
11.7
11.8
11.9
11.10
11.11
11.12
PASSWORD DEFAULT VALUES
ENTER THE PR1 - PR2 - PR3 PROGRAMMING LEVELS
HOW TO CHANGE A PARAMETER VALUE
CHANGE THE PASSWORD VALUE
ENTER THE PROGRAMMING LEVEL PR1
ENTER THE PROGRAMMING LEVEL PR2
ENTER THE PROGRAMMING LEVEL PR3
MOVE A PARAMETER LEVEL FROM PR2 TO PR1
MOVE A PARAMETER FROM PR3 TO PR2 TO PR1
VISIBILITY AND PARAMETER VALUE LOCKED
PROGRAMMING: DIGITAL INPUT AND OUTPUT POLARITY
CHANGE THE POLARITY OF THE DIGITAL INPUTS-OUTPUTS
42
42
42
42
43
43
44
44
45
45
45
45
12
SELECTION AND START OF THE RUNNING MODE
12.1
12.2
SELECT THE CHILLER OR THE HEAT PUMP MODE
CHANGE OVER
11
13
13
14
15
15
16
17
17
17
18
18
18
19
19
19
20
20
21
21
22
22
23
23
24
24
24
25
25
26
27
27
27
41
42
46
46
46
12.3
12.4
12.5
CHILLER – HEAT PUMP FUNCTIONING MODE
KEYBOARD SELECTION
ANALOG INPUT SELECTION
13
UNIT START- STOP
13.1
13.2
START – STOP AND STAND- BY FROM KEYBOARD
UNIT START- STOP FROM DIGITAL INPUT
14
DISPLAY LAYOUT
14.1
14.2
HOW TO SHOW THE MEASUREMENT LIST.
SHOW THE CIRCUIT 1 OR 2
15
CUSTOM DISPLAY
15.1
15.2
15.3
15.4
15.5
DEFAULT READ - OUT OF THE TOP DISPLAY
DEFAULT READ - OUT OF THE BOTTOM DISPLAY
FORCED READ - OUT OF THE TOP AND BOTTOM DISPLAY
DEFAULT DISPLAY READ - OUT OF THE REMOTE PANELS VI620S AND VI820S
DEFAULT DISPLAY READ - OUT OF THE REMOTE PANELS VI620S AND VI820S
16
DISPLAY INFORMATION
16.1
16.2
16.3
16.4
16.5
SHOW THE SET POINT VALUE
MODIFY THE SET POINT
SHOW THE ACTIVE SETPOINT DURING ENERGY SAVING OR DYNAMIC SETPOINT
DISPLAY IN REMOTE OFF
DISPLAY IN MOTOCONDENSING CONFIGURATION
17
FUNCTION MENU “ M” KEY
17.1
17.2
17.3
17.4
17.5
17.6
17.7
17.8
17.9
17.10
17.11
17.12
17.13
17.14
17.15
17.16
17.17
17.18
17.19
17.20
ALARM LIST: SHOW AND RESET
COMPRESSOR OVERLOAD ALARM RESET
COMPRESSOR OVERLOAD PASSWORD.
ALARM LOG LIST
ERASE THE ALARM LOG LIST
PASSWORD VALUE OF THE ALARM LIST
DISABLE – ENABLE A SINGLE CIRCUIT
READ-OUT OF A CIRCUIT NOT ENABLED
ENABLE OR DISABLE A SINGLE COMPRESSOR
READ-OUT OF A COMPRESSOR NOT ENABLED
READ-OUT OF THE COMPRESSOR DISCHARGE TEMPERATURE PROBE
READ-OUT OF THE RUNNING HOURS
RESET THE RUNNING HOUR
READ-OUT OF THE COMPRESSOR STARTS-UP
RESET THE STARTS-UP NUMBER
READ-OUT OF THE PROPORTIONAL OUTPUT PERCENTAGE OF THE CONDENSER FAN CONTROL
READ-OUT OF THE FOUR PROPORTIONAL OUTPUT
READ-OUT OF THE TIME COUNTING TO THE NEXT DEFROST
READ-OUT OF THE PROBES CONFIGURED TO CONTROL AN AUXILIARY OUTPUT RELAY
HOW TO DISPLAY THE TEMPAERATURE OF THE INTERNAL TEMPERAURE SENSOR OF THE REMOTE
TERMINALS 1 OR 2
18
ENERGY SAVING
18.1
18.2
18.3
18.4
ENERGY SAVING FROM DIGITAL INPUT
ENERGY SAVING TIME TABLE WITH RTC
RTC DAILY TIME TABLE PROGRAMMING
ENERGY SAVING OR UNIT ON/OFF ACTIVATION WITH RTC PROGRAMMING
19
DYNAMIC SETPOINT
19.1
DYNAMIC SETPOINT GRAPH
20
AUXILIARY RELAYS
20.1
20.2
AUXILIARY RELAY WITH DIRECT ACTION
AUXILIARY RELAY WITH INVERSE ACTION
21
COMPRESSOR THERMOREGULATION
21.1
THERMOREGULATION PARAMETER DESCRIPTION
22
SELECTION OF THE KIND OF THERMOREGULATION
22.1
22.2
22.3
22.4
GRAPH OF THE COMPRESSOR THERMOREGULATION IN CHILLER
GRAPH OF THE COMPRESSOR THERMOREGULATION IN HEAT PUMP
GRAPH NEUTRAL ZONE COMPRESSOR CONTROL
GRAPH PROPORTIONAL INTEGRAL COMPRESSOR REGULATION CONTROL
23
THERMOREGULATION OF THE ANTI FREEZE, INTEGRATION HEATING
OR BOILER
23.1
23.2
THERMOREGULATION OF THE HEATERS IN CHILLER
THERMOREGULATION OF THE HEATERS IN HEAT PUMP
46
46
46
47
47
47
47
47
47
48
48
50
50
51
51
51
51
51
51
52
52
52
52
52
53
53
53
53
53
53
53
54
54
54
54
54
54
55
55
55
55
55
56
56
56
56
56
57
58
59
59
59
59
59
60
60
61
61
61
61
61
61
23.3
23.4
23.5
23.6
23.7
THERMOREGULATION OF THE SUPPORT HEATERS FOR AIR/AIR UNIT
CONDENSER ANTI-FREEZE HEATERS REGULATION
THE THERMOREGULATION OF THE ANTI-FREEZE HEATERS OF THE CONDENSER/RECOVERY
GRAPH OF THE ANTI-FREEZE- INTEGRATION HEATING - BOILER HEATER RELAYS
BOILER THERMOREGULATION(ANTIFREEZE), BOILER FUNCTION
62
62
62
63
63
24
ANTI - FREEZE ALARM AND HEATERS REGULATION THROUGH
DIGITAL INPUT
63
25
THERMOREGULATION AND COMPRESSORS ROTATION
64
26
SATURATION - CIRCUIT BALANCING
64
27
COMPRESSORS
64
27.1
27.2
27.3
27.4
27.5
27.6
27.7
27.8
27.9
COMPRESSORS START- UP
DIRECT START- UP
DIRECT START- UP OF A CAPACITY COMPRESSOR
PART WINDING
COMPRESSOR START- UP WITH PART WINDING
PART WINDING START- UP OF COMPRESSORS OR CAPACITY COMPRESSORS
STAR - DELTA START
STAR - DELTA START OF A COMPRESSOR
STAR - DELTA START- UP OF A CAPACITY COMPRESSOR
28
CAPACITY CONTROL
28.1
28.2
28.3
MINIMUM LOAD START- UP
BY- PASS GAS VALVE DURING COMPRESSOR START- UP
SOLENOID VALVE INTERMITTENT FOR SCREW COMPRESSOR
29
PUMP DOWN
29.1
29.2
29.3
29.4
29.5
29.6
OFF UNIT WITH PUMP DOWN AND WITH LOW PRESSURE SWITCH CONTROL
PUMP DOWN WITH DEDICATED PRESSURE SWITCH
PUMP DOWN FUNCTION WITH DEDICATED PRESSURE PROBE
PUMP DOWN ALARM DURING COMPRESSORS START- UP
PUMP DOWN ALARM DURING COMPRESSORS SWITCHING OFF
PUMP DOWN INFORMATION
30
UNLOADING
30.1
30.2
30.3
30.4
30.5
30.6
30.7
HIGH TEMPERATURE OF THE EVAPORATOR WATER INLET
UNLOADING DESCRIPTION
UNLOADING INFORMATION
UNLOADING WITH PRESSURE, CONDENSING TEMPERATURE OR EVAPORATING PRESSURE CONTROL
REGULATION
OTHER INFORMATION ABOUT THE UNLOADING IN CHILLER
OTHER INFORMATION ABOUT THE UNLOADING IN HEAT PUMP
31
SOLENOID VALVE FOR LIQUID INJECTION
31.1
FUNCTIONNING
32
WATER PUMP OF THE EVAPORATOR / SUPPLY FAN
32.1
32.2
WATER PUMP OF THE EVAPORATOR / SUPPLY FAN (AIR/AIR)
HOT START ( SUPPLY FAN) ONLY FOR AIR / AIR UNIT IN HEAT PUMP MODE
33
EVAPORATOR PUMP GROUP
33.1
33.2
33.3
EVAPORATOR WATER PUMP ROTATION
EVAPORATOR WATER PUMP ROTATION THROUGH DIGITAL INPUT CONTROL
HOT START
34
WATER PUMP OF THE CONDENSER
34.1
CONDENSER WATER PUMP CONTROL
35
PUMP GROUP OF THE CONDENSER
35.1
35.2
CONDENSER WATER PUMP ROTATION
CONDENSER WATER PUMP ROTATION THROUGH DIGITAL INPUT CONTROL
36
LOAD MAINTENANCE
36.1
COMPRESSOR MAINTENANCE RESQUESTS
37
CONDENSER FAN REGULATION
37.1
37.2
37.3
37.4
37.5
37.6
OUTPUT STEP RELE’ CONDENSER FAN
PWM OUTPUT FOR FAN CONTROL
CONDENSING UNIT: COMMON OR SEPARATE
GRAPH: PROPORZIONAL REGULATION OF CONDENSER FANS
GRAPH: ON / OFF REGULATION OF THE CONDENSER FAN IN CHILLER MODE
GRAPH: ON / OFF REGULATION OF THE CONDENSER FAN IN HEAT PUMP MODE
64
64
65
65
65
65
65
66
66
66
67
68
68
68
68
68
69
69
70
70
70
70
70
70
71
71
71
71
71
71
72
72
72
72
72
72
73
73
73
73
73
73
74
74
74
75
75
75
75
77
77
38
DEFROST CYCLE
38.1
38.2
38.3
38.4
38.5
38.6
38.7
38.8
FORCED DEFROST
COMBINED DEFROST
MANUAL DEFROST
DEFROST START CONDITION WITH TWO CIRCUIT UNIT
END OF THE DEFROST IN A TWO CIRCUITS WITH ONE CONDENSING FAN CONTROL UNIT
AUTOMATIC DEFROST PROCEDURE
OTHER INFORMATION ABOUT THE DEFROST
DEFROST PARAMETER DESCRIPTION
77
39
RECOVERY
39.1
39.2
UNIT WITH TWO SEPARATE HYDRAULIC CIRCUITS
UNIT WITH TWO HYDRAULIC CIRCUIT WORKING IN PARALLEL
40
CONDENSER
TEMPERAURE
/
PRESSURE
ENABLE/DISABLE THE RECOVERY CYCLE
77
77
78
78
78
78
79
79
81
81
82
CONDITION
TO
82
40.1
40.2
40.3
RECOVERY DISABLED
RECOVERY ENABLED
NOTE ABOUT RECOVERY ENABLED/DISABLED
41
MESSAGES - ALARM CODES
41.1
41.2
41.3
41.4
41.5
41.6
41.7
41.8
41.9
41.10
41.11
41.12
41.13
41.14
41.15
41.16
41.17
41.18
41.19
41.35
41.36
41.37
41.38
41.39
AP1 - AP2 - AP3 - AP4 - AP5 - AP6 - AP7 - AP8 - AP9 - AP10 - AP11 - AP12 PROBE FAILURE
AEFL: EVAPORATOR FLOW ALARM (DIFFERENTIAL PRESSURE SWITCH)
ACFL: CONDENSER FLOW ALARM (DIFFERENTIAL PRESSURE SWITCH)
ATSF: OVERLOAD ALARM OF THE SUPPLY FAN
ATE1 - ATE2 EVAPORATOR PUMP OVERLOAD ALARM
ATC1 - ATC2 CONDENSER/RECOVERY PUMP OVERLOAD ALARM
AEE EEPROM ALARM
AFR: POWER SUPPLY FREQUENCY ALARM
ALOC: GENERIC ALARM WITH STOP REGULATION
ACF1 - ACF2 - ACF3 - ACF4 - ACF5 - ACF6 - ACF7 - ACF8 - ACF9 CONFIGURATION ALARM OF THE UNIT
ARTF CLOCK FAILURE
ARTC CLOCK ALARM
AEUN: UNLOADING ALARM FROM HIGH TEMPERATURE OF THE EVAPORATOR WATER INLET
ALTI: LOW AIR AMBIENT TEMPERATURE (AIR / AIR UNIT ONLY)
AEP1 - AEP2 EVAPORATOR PUMPS / SUPPLY FAN MAINTENANCE REQUEST
ACP1 - ACP12 CONDENSER PUMPS MAINTENANCE REQUEST
B1HP - B2HP HIGH PRESSURE SWITCH CIRCUIT 1 AND 2
B1LP - B2LP LOW TEMPERATURE / LOW CONDENSING PRESSURE OF THE CIRCUIT
B1AC - B2AC - B1AC - B2AC ANTIFREEZE ALARM / LOW OUTLET TEMPERATURE (AIR / AIR UNIT IN CHILLER
MODE)
B1AH - B2AH ANTI-FREEZE ALARM / LOW OUTLET AIR TEMPERAURE(AIR/AIR UNIT ONLY) ON HEAT PUMP
MODE
B1HP - B2HP HIGH PRESSURE / CONDENSING HIGH TEMPERATURE OF THE CIRCUIT
B1LP - B2LP LOW PRESSURE SWITCH CIRCUIT #1 OR 2
B1LP - B2LP LOW EVAPORATING PRESSURE OF THE CIRCUIT (WITH PRESSURE TRANSDUCERS ONLY)
B1TF- B2TF CONDENSER FAN OVERLOAD ALARM
C1HP - C2HP - C3HP - C4HP - C5HP - C6HP COMPRESSOR HIGH PRESSURE ALARMS
C1OP - C2OP - C3OP - C4OP - C5OP - C6OP - PRESSURE SWITCH ALARM / COMPRESSOR OIL
C1DT - C2DT - C3DT - C4DT - C5DT - C6DT HIGH COMPRESSOR DISCHARGE TEMPERATURE ALARM
C1TR - C2TR - C3TR - C4TR - C5TR - C6TR COMPRESSOR OVERLOAD ALARM
B1DF – B2DF DEFROST ALARM
B1CU – B2CU UNLOADING DISABLED FROM HIGH CONDENSING TEMPERATURE / PRESSURE IN CHILLER
B1CU – B2CU: UNLOADING FROM LOW CONDENSING TEMPERATURE / PRESSURE IN HEAT PUMP
B1RC – B2RC RECOVERY DISABLED FROM HIGH CONDENSING TEMPERATURE/PRESSURE IN CHILLER
B1PH - B2PH: PUMP DOWN STOP ALARM FROM PRESSURE SWITCH / LOW PRESSURE SWITCH
B1PL - B2PL ALARM DURING THE PUMP DOWN START-UP FROM PUMP DOWN PRESSURE SWITCH / LOW
PRESSURE TRANSDUCER
C1MN - C2MN - C3MN - C4MN - C5MN - C6MN COMPRESSOR MAINTENANCE
AEP1 - AEP2 PUMP/ SUPPLY FAN MAINTENANCE
ACP1 - ACP1 CONDENSER PUMP MINTENANCE
ALARM RELAY AND BUZZER
KEYABOARD ALARM
42
AUTOMATIC TO MANUAL ALARM PROCEDURE
94
43
TABLE OF THE OUTPUT STATUS IN ALARM CONDITION
95
43.1
43.2
43.3
ALARM: “A” TYPE AND CORRESPONDING OUTPUT OFF
ALARM: “A” TYPE AND CORRESPONDING OUTPUT OFF
ALARM: “A” TYPE AND CORRESPONDING COMPRESSOR OUTPUT OFF
44
BLACK-OUT
98
45
INSTALLING AND MOUNTING
98
45.1
PANEL CUT- OUT
41.20
41.21
41.22
41.23
41.24
41.25
41.26
41.27
41.28
41.29
41.30
41.31
41.32
41.33
41.34
82
83
83
83
83
83
83
84
84
84
84
85
85
85
86
87
87
87
87
88
88
88
88
89
89
89
89
90
90
90
90
91
91
91
91
92
92
92
92
92
94
94
94
95
96
97
98
45.2
45.3
45.4
45.5
PLEXIGLASS PROTECTION BOTTOM OPEN
PLEXIGLASS PROTECTION TOP OPEN
METAL FRONT FRAME
VERTICAL BOARDS VI620 – VI820 PANEL CUT-OUT
98
98
99
99
46
ELECTRICAL CONNECTIONS
100
47
ACCESSORIES
100
47.1
47.2
47.3
MONOPHASE FAN CONTROL: 230VAC AND CUT PHASE CONTROL
INVERTER: MICROFAN 380VAC UP TO 4KW OR 8KW
TRANSFORMER
48
TECHNICAL DATA
100
101
101
102
1592015300 User manual iCHILL 200 L GB
r1.3
09/09/2005
1 GENERAL ADVICE
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
1.1 PLEASE READ BEFORE USING THIS MANUAL
· This manual is part of the product and should be kept near the
instrument for easy and quick reference.
· The instrument shall not be used for purposes different from those
described hereunder. It cannot be used as a safety device.
· Check the application limits before proceeding.
1.2 SAFETY PRECAUTIONS
· Check the supply voltage is correct before connecting the instrument.
· Do not expose to water or moisture: use the controller only within the
operating limits avoiding sudden temperature changes with high
atmospheric humidity to prevent formation of condensation
· Warning: disconnect all electrical connections before any kind of
maintenance.
· The instrument must not be opened.
· In case of failure or faulty operation send the instrument back to the
distributor or to “Dixell s.r.l.” (see address) with a detailed description of
the fault.
· Consider the maximum current which can be applied to each relay (see
Technical Data).
Ensure that the wires for probes, loads and the power supply are separated
and far enough from each other, without crossing or intertwining.
· Fit the probe where it is not accessible by the end user.
· In case of applications in industrial environments, the use of mains
filters (our mod. FT1) in parallel with inductive loads could be useful.
1592015300 User manual iCHILL 200 L GB
2
r1.3
09/09/2005
GENERAL FEATURES
iCHILL IC200L is an electronic controller for chiller unit applications having one or two circuits:
•
Air/air
•
Air/water
•
Water/water
•
Motocondensing
Additional features :
•
Heat pump with gas reversibility
•
Free cooling function
•
Recovery function
2.1
MAIN FUNCTION
Chiller management:
•
One circuit up to 4 compressors
•
Two circuits with different compressor number per circuit
•
Double circuit up to 6 compressors
•
Screw compressors
Compressor start up:
•
Direct
•
Part winding
•
Star - delta
Compressor Soft start:
•
With step valve
•
Automatic start-unloading (without load).
•
External by-pass gas valve.
Capacity step control:
•
Continuous control
•
Step control
•
Modulation control (screw compressors)
Thermoregulation of the compressors
•
Time running hours
•
Number of start-up per hour
Cooling liquid injection
•
With dedicated PTC probe
High temperature alarm of the compressor discharge side
•
With dedicated PTC probe
Complete management of two pump groups of the water side
•
2 pumps evaporator side
•
2 pumps condenser side
Display layout customizable
•
Temperature
•
Pressure
•
Time / RTC in real time
Other display readings
•
Safety digital inputs
•
Compressors running hours
•
Number of compressor start-up
•
Pump running hours
•
Delay counting to the next defrost
•
Proportional output percentage status
•
Compressors discharge temperature
Alarm reset with custom password
•
Alarm list
•
Compressor thermal protection alarm
Single circuit stand-by
•
Circuit maintenance
•
To work with only one circuit
Single compressor stand-by
•
Compressor maintenance
•
Compressor malfunction
Pump down management
•
With dedicated pressure switch
•
Low pressure switch
•
Low pressure transducer
Unloading circuit
•
High temperature of the evaporator inlet water
•
High temperature of the condenser inlet water (unit with recovery)
•
High condensing pressure
Pg.8/106
1592015300 User manual iCHILL 200 L GB
r1.3
09/09/2005
•
Low evaporating pressure
Maintenance messages
•
Compressors
•
Evaporator pumps
•
Condenser pumps
Auxiliary relays
•
Two configurable relay outputs not depending from the control algorithm can be managed through NTC, PTC or pressure
probes.
Weekly Energy saving
•
Three different time bands per day (only with RTC onboard)
•
From digital input
Weekly ON/OFF:
•
Three different time bands per day (only with RTC onboard)
Dynamic setpoint:
•
Determined by analogue NTC input or 4÷20mA current input.
Change over :
•
Automatic chiller or heat pump functioning depending from NTC analogue input.
Remote OFF:
•
From configurable digital input.
Remote change over:
•
From configurable digital input.
Hot start :
•
Air / air unit
Defrost management:
•
Combined control with temperature and pressure
•
Forced defrost with low temperature of external air
•
From configurable digital input
•
Manual from keyboard
Boiler:
•
For electrical integration heating or anti-freeze heaters
Two proportional outputs for condensing fan speed control (inverter or phase cut) with configurable signal:
•
PWM
•
0÷10Volt
•
4÷20mA
Four proportional control outputs 0÷10V or ON/OFF
•
To control the dumper in free cooling or recovery
•
To control an external relay
Complete alarm management
•
Internal Data logger up to 100 events
Supervisor / tele assistance/ monitoring
•
TTL output for XJ485 interface (Mod #Bus protocol) for XWEB300 / XWEB3000 Dixell monitoring system for local and remote
control
Up to 2 remote terminals with display read-out customizable
•
With NTC ambient temperature probe
1592015300 User manual iCHILL 200 L GB
r1.3
09/09/2005
3 IC200 L TABLE OF THE FEATURES
FEATURES
IC260L
IC261L
CHILLER WITH HEAT PUMP
IC280L
IC281L
CHILLER WITH HEAT PUMP,
FREE COOLING AND HEATING
RECOVERY
FRONTPANEL KEY BUTTONS
6
n
n
8
n
n
OUTPUT RELAYS
10
n
14
n
n
n
DIGITAL INPUTS
18
configurable
configurable
configurable
configurable
configurable
configurable
configurable
configurable
n
n
n
n
Two 0÷10V o 4÷20mA for condensing fan
configurable
configurable
configurable
configurable
Four 0÷10V outputs for Free cooling and Heating
recovery, or to drive an external relay
configurable
configurable
configurable
configurable
n
n
n
n
n
n
n
n
PROBE INPUTS
10 NTC - PTC - 4÷20mA - 0 ÷ 5Volt
PROPORTIONAL OUTPUTS
Two PWM outputs for condensing fan
OTHER OUTPUTS
TTL / RS – 485 with Mod-Bus-Rtu protocol
Output for remote keyboard VI620 (up to 2 boards
together)
Output for remote keyboard VI820 (up to 2 boards
together)
POWER SUPPLY
12 Vac/dc (+15%;-10%)
n
n
n
n
24 Vac/dc (± 10%)
opt
opt
opt
opt
n
n
n
n
n
n
n
n
Internal RTC
opt
opt
opt
opt
Buzzer
opt
opt
opt
opt
TOP DISPLAY
± 3 led with decimal point
BOTTOM DISPLAY
± 4 led with decimal point
OTHERS
ƒ
ƒ
ƒ
ƒ
ƒ
configurable = configurable through parameter
opt = optional
n = default
free cooling (IC280L / IC281L only )
Heating recovery (IC280L / IC281L only )
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4 USER INTERFACE
4.1
FUNCTION OF THE LEDS OF THE KEY BUTTONS
Use of the led on the IC260L / IC261L models
Use of the led on the IC260L / IC261L metal models
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Use of the led on the models IC280L / IC281L
Use of the led on the metal models IC280L / IC281L
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4.2
USE OF THE LED ON THE MODELS VI620 - VI620S REMOTE PANELS
4.3
USE OF THE LED ON THE MODELS VI820 - VI820S REMOTE PANELS
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KEY FUNCTION
KEY
ACTION
Push and release
Push once
Push for 3 seconds the release
During the programming: push one time
FUNCTION
Show chiller set point SetC and heat pump SetH
In chiller or heat pump if the Energy saving or the Dynamic
setpoint are enabled it shows the real setpoint Setr, the led is
blinking.
Change between chiller / heat pump
Select a parameter or confirm a value
Push once with probe label showed on the Change between the read-out of the circuit 1 and the circuit 2 and
bottom display
viceversa
Push once
Pushing once during the programming
Select the readings of the first circuit
To change the parameter code or value
Push for 1 second during the programming
1 time shows the Pr2 programming level
2 time shows the Pr3 programming level
Push once
Select the readings of the second circuit
Pushing one time during the programming
To change the parameter code or value
Push once
Turn the chiller on, if the unit is on led is on
The led is blinking if there is a power on delay or during the pump
down
Push once
Turn the heat pump on, if the unit is on led is on
The led is blinking if there is a power on delay or during the pump
down
Push once
Push for 3 seconds
enter the function Menu
To set RTC parameters (if the RTC is inside)
Pushing once during the programming
To exit from a group of parameter
Push once
Start the heating recovery of the chiller unit, with recovery active
the led is on
Push once
Start the free cooling of chiller unit, with free cooling active the led
is on
UP KEY
TASTO DOWN
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KEY COMBINANTION
KEY
ACTION
Push for 3 seconds together
FUNCTION
Enter the programming
In Pr3 level: push SET and the push
Select the parameter level visibility Pr1 / Pr2 / Pr3
DOWN key
Push once together
Exit the programming
Push 5 seconds (heat pump with ok
Manual defrost
condition)
In Pr3 programming level Push SET In Pr3 defines if the parameter can be changed or not in the
and then the MENU key
other levels.
4.6
LED AND ICONS
ICON
LED
FUNCTION
ON
Auxiliary relay #1 active
OFF
Auxiliary relay #1 not active
ON
Auxiliary relay #2 active
OFF
Auxiliary relay #2 not active
BLINKING
ON
OFF
Defrost delay counting active
Defrost
Defrost end
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DISPLAY AND ICONS
ICON
MEANING / FUNCTIONNING
Celsius degrees: ON for temperature measurements of probe values or parameters
Fahrenheit degrees: ON for temperature measurements of probe values or parameters
Bar: ON for pressure measurements of probe values, setpoint or parameters
PSI
Psi: ON for pressure measurements of probe values, setpoint or parameters
ON = compressor 1 active
Blinking = compressor 1 delay counting
ON = compressor 2 active
Blinking = compressor 2 delay counting
ON = compressor 3 active
Blinking = compressor 3 delay counting
ON = compressor 4 active
Blinking = compressor 4 delay counting
ON = compressor 5 active
Blinking = compressor 5 delay counting
ON = compressor 6 active
Blinking = compressor 6 delay counting
General alarm: blinking if there is an alarm not identified by an icon
Anti freeze heaters/ integration heating / boiler: ON if the output is on
Flow alarm/ (differential) pressure switch / supply fan thermal (air / air unit) : is blinking if the configuration of the
digital input is active
Real time clock: On when the bottom display show the RTC
ON during the programming with time based parameter value
In function menu indicates the defrost delay counting
Water pump: On if at least one of the four configurable pump group is on
Condenser fan: ON if at least one of the PWM or relay outputs for fan control is active
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MEANING/ FUNCTIONNING OF THE BOTTOM DISPLAY LED
Led # 1 – 2 (With RTC)
If the bottom display shows the RTC the 1 and 2 leds are blinking.
Led # 1 – 2 In function Menu
During the time counting to the next defrost for one or both circuits the led 1 and 2 are blinking.
LED
Parameter programming
In Pr2 level: led #3 indicates the visibility while the #1 and #2 show if the parameter can be modified or not.
In Pr3 level: led #3 and #4 indicate the visibility while the #1 and #2 show if the parameter can be modified or not.
5 REMOTE TERMINAL
The iCHILL can be connected with 2 remote terminals. Each remote terminal can have the NTC probe on board that is used to show the
loacl temperature and also to control the temperature regulation.
for the connections use shielded cable for a maximum lenght of 150mt. In case of no communication between the instrument and the
remotes the upper display shows “noL” (no link).
Mod. VI620 - VI620S can be connected to IC260L – IC261L
Mod. VI820 - VI820S can be connected to IC280L – IC281L
2
Use the connection cable CAB/CJ30 (2x0.2 mm ) to interface the ichill connector to the shielded wire.
6 FIRST INSTALLING
6.1
ON BOARD CLOCK (OPTIONAL)
Giving power supply the bottom display shows “rtC” alternated with a temperature or pressure value: It is necessary to set the RTC.
If the probes are not connected the display shows the corresponding probe alarm messages. In this situation the RTC setup and the
programming are available.
ATTENTION
The RTC function is an optional and it is not possible to update the instrument but it is necessary to order the instrument
already complete of this features.
With power failure the RTC back-up battery maximum duration is 1 week. After this period it is necessary to setup the clock again.
6.2
1.
2.
3.
4.
-
RTC SETUP
Push M key for 3 seconds until the bottom display shows “Hour” and the top display shows its value.
Push SET one time: the value is blinking.
Use the Up and Down keys to adjust it. Push SET one time to confirm; automatically the display shows next parameter.
Repeat the operations 2. 3. and 4. for all the RTC parameters:
Min: minutes (0÷60)
UdAy: day of the week (Sun = Sunday, Mon =Monday, tuE =Tuesday, UEd = Wednesday, tHu = Thursday, Fri =Friday, SAt
=Saturday)
dAy: day of the month (0÷31)
MntH: month (1÷12)
yEAr: year (00÷99)
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7 WIRING CONNECTIONS
7.1
HARDWARE RESOURCES FOR IC260L - IC280L MODELS
10 digital outputs (relays)
18 digital inputs (free of voltage)
10 analogue inputs: NTC probes or through configuration 6 NTC / PTC and 4 pressure transducer 4÷20mA or ratio-metric 0÷ 5.0Volt
6 modulating outputs
1 output for remote panel (max 2 remote panels)
1 TTL output for “Hot Key 64” connection or for XJ485, interface module for monitoring system, connection.
MAX current on the relay contacts relè 5(2)A 250V - MAX common current 12A 250V
7.2
HARDWARE RESOURCES FOR IC261L - IC281L MODELS
14 digital outputs (relays)
18 digital inputs (free of voltage)
10 analogue inputs: NTC probes or through configuration 6 NTC / PTC and 4 pressure transducer 4÷20mA or ratio-metric 0÷ 5.0Volt
6 modulating outputs
1 output for remote panel (max 2 remote panels)
1 TTL output for “Hot Key 64” connection or for XJ485, interface module for monitoring system, connection.
MAX current on the relay contacts relè 5(2)A 250V - MAX common current 12A 250V
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ANALOG INPUTS NTC – PTC PROBES
PbC = Common terminal
7.4
DIGITAL INPUTS
GND = Common terminal
7.5
ANALOG INPUT FOR PRESSURE TRANSDUCER PP30 (4 ÷ 20MA SIGNAL)
Using 4÷20mA pressure transducer set the Parameter CF07 = 0 / 1
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ANALOG INPUT FOR PRESSURE RATIOMETRIC TRANSDUCER PPR30 (0 ÷ 5V SIGNAL)
Using 5V ratio-metric pressure transducer set the Parameter CF07 = 2 / 3
7.7
PWM OUTPUT FOR CONDENSING FAN SPEED CONTROL
With only one condensing circuit configured the TF1 / TF2 outputs work together. The PWM signal can control the cut phase controllers
for the following mono-phase models:
Mod. XV05PK mono-phase , cut phase control 500 Watt (2A)
Mod. XV10PK mono-phase , cut phase control 1000 Watt (4A)
Mod. XV22PK mono-phase , cut phase control 2200 Watt (9A)
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FAN CONDENSING CONTROL: 0 ÷ 10VDC OUTPUTS
With only one condensing circuit configured, the Out1 / Out2 outputs work together giving the same signal. With the two 0 – 10V outputs
the iCHILL can drive a mono-phase or three-phase controllers (such as the Dixell inverter models XV340GS) up to 8KW.
7.9
FAN CONDENSING CONTROL WITH 4÷20MA OUTPUT
With only one condensing circuit configured, the Out1 / Out2 outputs work together giving the same signal. With the 4..20mA outputs the
iCHILL can drive a mono-phase or three-phase controllers (such as the Dixell inverter models XV340GS) up to 8KW.
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7.10 PROPORTIONAL OUTPUTS 0 ÷ 10V DUMPER CONTROL
GND = common
7.11 PROPORTIONAL OUTPUTS CONFIGURED FOR AUX RELAY CONTROL
GND = common
By parameter programming is possible to connect a 12 volt, 40mA relay.
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7.12 HOT KEY 64 CONNECTION
The programming HOT KEY 64 allows to upload or download a copy of the parameters of the instrument (see HOT KEY paragraph).
7.13 XJ485 CONNECTION
The XJ485 interface is a converter between the RS485 and the TTL connector output. The RS485 uses two terminals (+) and (-) that
must be connected respecting the polarity to build the serial line. Use the CAB/RS02 to connect the XJ485 interface to the TTL
connector.
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7.14 REMOTE PANELS VI620 – VI820
The instrument receives up to two remote panels. Using the remote panels provided with the ambient NTC probe the display
measurement, and the control can be managed directly by this probe. Use shielded cable for the connection up to 150mt maximum. In
case of communication failure the upper display shows “noL” (no link).
Use the CAB/CJ30 to interface the ichill connector to the shielded cable.
•
Remote panel VI620 for models IC260L – IC261L
•
Remote panel VI820 for models 200 L IC280L – IC281L
8 ANALOG AND DIGITAL OUTPUT CONFIGURATION
8.1
ANALOG INPUT PB1 - PB2 - PB7 - PB8 - PB9 - PB10
Parameters involved:
CF08 = Configuration PB1
CF09 = Configuration PB2
CF14 = Configuration PB7
CF15 = Configuration PB8
CF16 = Configuration PB9
CF17 = Configuration PB10
0. Not enabled
1. Temperature probe PTC for compressor #1 discharge
2. Temperature probe PTC for compressor #2 discharge
3. Temperature probe PTC for compressor #3 discharge
4. Temperature probe PTC for compressor #4 discharge
5. Temperature probe PTC for compressor #5 discharge
6. Temperature probe PTC for compressor #6 discharge
7. Temperature probe NTC for evaporator inlet
8. Temperature probe NTC for evaporator #1 outlet
9. Temperature probe NTC for evaporator #2 outlet
10. Temperature probe NTC for common evaporator outlet
11. Temperature probe NTC for common hot water condenser / recovery inlet
12. Temperature probe NTC for hot water of the condenser / recovery circuit #1 inlet
13. Temperature probe NTC for hot water of the condenser / recovery circuit #2 inlet
14. Temperature probe NTC for hot water of the condenser / recovery circuit #1 outlet
15. Temperature probe NTC for hot water of the condenser / recovery circuit #2 outlet
16. Temperature probe NTC for hot water of the condenser / recovery common outlet
17. Temperature probe NTC for free cooling water inlet circuit
18. Temperature probe NTC for free cooling external air temperature
19. Temperature probe NTC for dynamic setpoint external air / boiler / change over
20. Temperature probe NTC for combined defrost circuit #1
21. Temperature probe NTC for combined defrost circuit #2
22. Temperature probe NTC for auxiliary output #1
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23. Temperature probe NTC for auxiliary output #2
24. Temperature probe NTC for condensing circuit #1
25. Temperature probe NTC for condensing circuit #22
After the number 25 the display configuration can be selected from o 1 to c62 that allows to set an analogue input as digital input (see
polarity of the digital input/outputs).
8.2
ANALOG INPUT CONFIGURATION PB3 - PB4 - PB5 - PB6
Parameter involved:
CF10 = Configuration PB3
CF11 = Configuration PB4
CF12 = Configuration PB5
CF13 = Configuration PB6
0
Not enabled
1
Temperature probe PTC for compressor 1 discharge
2
Temperature probe PTC for compressor 2 discharge
3
Temperature probe PTC for compressor 3 discharge
4
Temperature probe PTC for compressor 4 discharge
5
Temperature probe PTC for compressor 5 discharge
6
Temperature probe PTC for compressor 6 discharge
7
Temperature probe NTC for evaporator inlet
8
Temperature probe NTC for evaporator outlet # 1
9
Temperature probe NTC for evaporator outlet # 2
10 Temperature probe NTC for common evaporator outlet
11 Temperature probe NTC for common hot water condenser / recovery inlet
12 Temperature probe NTC for hot water condenser / recovery inlet circuit #1
13 Temperature probe NTC for hot water condenser / recovery inlet circuit #2
14 Temperature probe NTC for hot water condenser / recovery outlet circuit #1
15 Temperature probe NTC for hot water condenser / recovery outlet circuit #2
16 Temperature probe NTC for hot water condenser / recovery common outlet circuit
17 Temperature probe NTC for free cooling water inlet
18 Temperature probe NTC for free cooling external air
19 Temperature probe NTC for external air dynamic setpoint/ boiler / change over
20 Temperature probe NTC for combined defrost circuit #1
21 Temperature probe NTC for free cooling water inlet #2
22 Temperature probe NTC for auxiliary output #1
23 Temperature probe NTC for auxiliary output #2
24 Condenser probe circuit 1 ( temperature NTC / pressure 4÷20 mA / ratio-metric 0÷ 5Volt )
25 Condenser probe circuit 2 ( temperature NTC / pressure 4÷20 mA / ratio-metric 0÷ 5Volt )
26 Evaporator pressure probe circuit 1 (pressure 4÷20 mA / ratio-metric 0÷ 5Volt )
27 Evaporator pressure probe circuit 1 (pressure 4÷20 mA / ratio-metric 0÷ 5Volt )
28 Auxiliary output 1 pressure probe control (4÷20 mA / ratio-metric 0÷ 5Volt).
29 Auxiliary output 2 pressure probe control (4÷20 mA / ratio-metric 0÷ 5Volt).
30 Dynamic setpoint pressure probe (4÷20 mA)
After the number 30 the display read-out goes from “o 1” to “c62” that allows to set an analogue input as digital input (see polarity input
of digital inputs).
8.3
DIGITAL INPUT CONFIGURATION ID1 – ID18
Parameters involved:
CF36 = Configuration ID1…CF53 = Configuration ID18
0. Not enabled
1. Remote ON / OFF
2. Remote chiller / heat pump
3. Flow switch/ Supply fan overload
4. Flow switch of heated side
5. Antifreeze heater circuit 1
6. Antifreeze heater circuit 2
7. High pressure switch circuit # 1
8. High pressure switch circuit 2
9. Low pressure switch circuit 1
10. Low pressure switch circuit 2
11. Compressor 1 high pressure
12. Compressor 2 high pressure
13. Compressor 3 high pressure
14. Compressor 4 high pressure
15. Compressor 5 high pressure
16. Compressor 6 high pressure
17. Compressor 1 overload
18. Compressor 2 overload
19. Compressor 3 overload
20. Compressor 4 overload
21. Compressor 5 overload
22. Compressor 6 overload
23. Condenser fan overload of circuit 1
24. Condenser fan overload of circuit 2
25. Condenser fan overload of circuit 1 and 2 (comun)
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27.
28.
29.
30.
31.
32.
33.
34.
35.
36.
37.
38.
39.
40.
41.
42.
43.
44.
45.
46.
47.
48.
49.
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54.
55.
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59.
60.
61.
62.
63.
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Water pump overload of evaporator 1
Water support pump overload of evaporator
Water pump overload of condenser 1
Water support pump overload of condenser
Recovery request for circuit 1
Recovery request for circuit 2
Defrost end of circuit 1
Defrost end of circuit 2
Energy Saving
Pressure switch / compressor 1 oil
Pressure switch / compressor 2 oil
Pressure switch / compressor 3 oil
Pressure switch / compressor 4 oil
Pressure switch / compressor 5 oil
Pressure switch / compressor 6 oil
Pump down pressure switch of circuit 1
Pump down pressure switch of circuit 2
Generic alarm from digital input with stop regulation
Digital input of thermoregulation request (motocondensing unit)
Digital input of cooling request (motocondensing unit)
Digital input of heating request (motocondensing unit)
Request / partialization 1 of compressor 1 (motocondensing unit)
Request / partialization 2 of compressor 1 (motocondensing unit)
Request / partialization 3 of compressor 1 (motocondensing unit)
Request compressor #2
Request / partialization 1 of compressor 2 (motocondensing unit)
Request / partialization 2 of compressor 2 (motocondensing unit)
Request / partialization 3 of compressor 2 (motocondensing unit)
Request compressor #3
Request / partialization 1 of compressor 3 (motocondensing unit)
Request / partialization 2 of compressor 3 (motocondensing unit)
Request / partialization 3 of compressor 3 (motocondensing unit)
Request compressor #4
Request / partialization 1 of compressor 4 (motocondensing unit)
Request / partialization 2 of compressor 4 (motocondensing unit)
Request / partialization 3 of compressor 4 (motocondensing unit)
Request compressor #5 (motocondensing unit)
Request compressor #6(motocondensing unit)
DIGITAL OUTPUT (RELAY) CONFIGURATION RL1- RL14
Parameter involved:
CF54= Configuration RL1…CF67= Configuration RL14
0. Not enabled
1. Alarm
2. Evaporator water pump / Supply fan
3. Support water pump of the evaporator
4. Anti-freeze heater / integration heating / boiler circuit #1
5. Anti-freeze heater / integration heating / boiler circuit #2
6. Water pump of the condenser recovery circuit
7. Support water pump of the condenser recovery circuit
8. 4-way valve for chiller / heat pump inversion of the circuit #1
9. 4-way valve for chiller / heat pump inversion of the circuit #2
10. 1° condenser fan step ON/OFF control of the circuit #1
11. 2° condenser fan step ON/OFF control of the circuit #1
12. 3° condenser fan step ON/OFF control of the circuit #1
13. 4° condenser fan step ON/OFF control of the circuit #1
14. 1° condenser fan step ON/OFF control of the circuit #2
15. 2° condenser fan step ON/OFF control of the circuit #2
16. 3° condenser fan step ON/OFF control of the circuit #2
17. 4° condenser fan step ON/OFF control of the circuit #2
18. Solenoid valve of the pump-down circuit #1
19. Solenoid valve of the pump-down circuit #2
20. Recovery valve circuit #1
21. Recovery valve circuit #2
22. Free cooling ON/OFF valve
23. Auxiliary output circuit #1
24. Auxiliary output circuit #2
25. Pulse valve for screw compressor #1
26. Solenoid valve Intermittent for screw compressor #2
27. Solenoid valve of the liquid injection for compressor #1
28. Solenoid valve of the liquid injection for compressor #2
29. Direct start-up : compressor #1 relay
PW start: relay PW #1 of the compressor #1
Star-delta start: relay line #1 of the compressor #1
30. PW start: relay PW #2 of the compressor #1
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32.
33.
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35.
36.
37.
38.
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40.
41.
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43.
44.
45.
46.
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Star-delta start: relay linea #2 compressor #1
Star centre of the Star-delta start of the compressor 1#
Capacity step valve #1 compressor #1
Capacity step valve #2 compressor #1
Capacity step valve #3 compressor #1
By-pass gas valve compressor #1start
Direct start: compressor #2 start
PW start: relay #1 of the compressor 2#
Star-delta start: relay line #1 of the compressor #2
PW start: relay PW #2 of the compressor #2
Star-delta start: relay line #2 of the compressor #2
Star centre of the Star-delta start of the compressor #2
Capacity step valve #1 compressor #2
Capacity step valve #2 compressor #2
Capacity step valve #3 compressor #2
By-pass gas valve compressor #2 start
Direct start: compressor #3 relay
PW start: relay PW #1 of the compressor #3
Star-delta start: relay line #1 of the compressor #3
PW start: relay PW #2 of the compressor #3
Star-delta start: relay line #1 of the compressor #3
Star centre of the Star-delta start of the compressor #3
Capacity step valve #1 compressor #3
Capacity step valve #2 compressor #3
Capacity step valve #3 compressor #3
By-pass gas valve compressor #3 start
Direct start: compressor #4 relay
PW start: PW#1 of the compressor #4
Star-delta start: relay line #1 of the compressor #4
PW start: relay PW #2 of the compressor #4
Star-delta start: relay line#1 of the compressor #4
Star centre of the Star-delta start of the compressor #4
Capacity step valve #1 of the compressor #4
Capacity step valve #2 of the compressor #4
Capacity step valve #3 of the compressor #4
By-pass gas valve compressor #4 start
Compressor #5 relay
Compressor #6 relay
CONDENSER PROPORTIONAL CONTROL CONFIGURATION (2 OUTPUTS)
Proportional outputs used to configure a proportional output signal to condenser fan control
Parameters involved:
CF68 = Condenser control configuration for circuit 1
CF69 = Condenser control configuration for circuit 2
0= 0 ÷ 10Vdc (for external mono or three-phase fan control board)
1= 4÷20mA (for external mono or three-phase fan control board)
2= PWM (only for external mono-phase fan control board with cut phase control)
8.6
PROPORTIONAL OUTPUT CONFIGURATION 0 ÷ 10 VDC (4 OUTPUTS)
Parameters involved:
CF70 = Proportional output 1 configuration
CF71 = Proportional output 2 configuration
CF72 = Proportional output 3 configuration
CF73 = Proportional output 4 configuration
0
Not enabled
1
Free cooling dumper / mixing valve
2
3-way valve for hot water
3
Dumper for air change
4
Auxiliary output
After the read-out number 4 the display goes from the label “o 1” to “c22” (see input/output polarity), that allow to configure the output
as digital output to control an external relay.
8.7
OTHER OUTPUTS
Hot key connection
TTL connection
Remote keyboard connection
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9 TABLE OF THE PARAMETERS
MENU SELECTION
Description
Label
Shows
all the parameters
ALL
ST
Shows only the Thermoregulation parameters
CF
Shows only the Configuration parameters
SD
Shows only the Dynamic Setpoint parameters
ES
Shows only the Energy Saving, RTC parameters
CO
Shows only the compressor parameters
US
Shows only the Auxiliary Output parameters
FA
Shows only the Fan Control parameters
Ar
Shows only the Antifreeze Control parameters
DF
Shows only the Defrost parameters
AL
Shows only the Alarm parameters
ST 7
Thermoregulation
Description
Chiller Setpoint
Allow to modify the setpoint of the unit in chiller mode
Chiller minimum Setpoint
Minimum setpoint limit for ST 1
Chiller maximum Setpoint
Maximum setpoint limit for ST 1
Heat pump setpoint
Allow to modify the setpoint of the unit in heat pump mode
Heat pump minimum Setpoint
Minimum setpoint limit for ST 4
Heat pump maximum Setpoint
Maximum setpoint limit for ST 4
Regulation band in chiller mode
ST 8
Regulation band in chiller heat pump
ST 9
Thermoregulation probe selection in chiller
0= Temperature probe NTC for evaporator inlet
1= Temperature probe NTC for evaporator outlet 1
2= Temperature probe NTC for evaporator outlet 2
0
3= Temperature probe NTC for common evaporator outlet
4= Temperature NTC probe from remote panel 1
5= Temperature NTC probe from remote panel 2
Thermoregulation probe selection in heat pump
0= Temperature probe NTC for evaporator inlet
1= Temperature probe NTC for evaporator outlet 1
2= Temperature probe NTC for evaporator outlet 2
3= Temperature probe NTC for common evaporator outlet
4= Temperature NTC probe from remote panel 1
5= Temperature NTC probe from remote panel 2
6= Temperature probe for water common inlet of the condenser
0
7= Temperature probe for water inlet of the circuit # 1 condenser
8= Temperature probe for water inlet of the circuit # 2 condenser
9= Temperature probe for water outlet of the circuit # 1 condenser
10= Temperature probe for water outlet of the circuit # 2 condenser
11= Temperature probe for water common otlet of the condenser
ATTENTION
To have the same thermoregulation for chiller and heat pump mode, set the
parameters ST09 and ST10 with the same value
Type of thermoregulation
0= Proportional
0
1= Neutral zone
2= PI Proportional Integral
Password
0
Password
0
Password
0
Display read-out
Description
min
Parameter
ST 1
ST 2
ST 3
ST 4
ST 5
ST 6
ST 10
ST 11
Pr1
Pr2
Pr3
Parameter
min
max
u.m.
ST02
ST03
°C/°F
-30.0
-22
ST01
ST01
70.0
158
°C
°F
°C
°F
ST05
ST06
°C/°F
dec/int
-30.0
-22
ST04
°C
°F
°C
°F
°C
°F
°C
°F
Dec
int
Dec
int
Dec
int
Dec
int
ST04
0.0
0
0.0
0
70.0
158
25.0
45
25.0
45
Resolution
dec/int
dec/int
dec/int
5
11
2
999
999
999
max
M. u.
Resolution
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dP 1
dP 2
dP 3
dP4
dP5
Pr1
Pr2
Pr3
Parameter
CF 1
CF 2
CF 3
CF 4
CF 5
CF 6
CF 7
CF 8
CF 9
CF 10
CF 11
CF 12
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09/09/2005
Default read-out of the top display
0
Default read-out of the bottom display
0
Default display read-out configuration top / bottom
0= Configurable
1= Top display: Evaporator IN, Bottom display: Evaporator OUT
0
2= Top display: Condenser IN, Bottom display: Condenser OUT
3=Top display: temperature/Condensing pressure, Bottom Display:
evaporating pressure
Display read-out of the remote terminals
Top display default read-out of the remote terminal_1
0= the read-out depends on the paremeters dP01 – dP02 – dP03
0
1= the read-out shows the NTC probe of the remote panel.
Top display default read-out of the remote terminal_2
0= the read-out depends on the paremeters dP01 – dP02 – dP03
0
1= the read-out shows the NTC probe of the remote panel.
Password
0
Password
0
Password
0
Configuration
Description
min
Unit Model
Type of unit
0= Air / air Chiller
0
1= Air / water Chiller
2= Water / water Chiller
Heat pump
0= no
0
1= Yes
Motocondensing unit (not available)
0
0= no
1= si
Compressors
Compressors number for circuit #1
1= 1
2= 2
0
3= 3
4= 4
Compressors number for circuit #2
0= 0
1= 1
0
2= 2
3= 3
Number of compressor parzialization
0= none
1= 1
0
2= 2
3= 3
Analog Inputs
Pressure or temperature analogue input functioning
0 = Temperature / pressure NTC – 4÷20 mA :
The condensing temperature is controlled with NTC probe while for the
evaporating pressures of the circuits 1 and 2 and the pressure probe
configured as auxiliary output 1 and 2 are controlled with 4÷20mA
transducers.
1 = Pressure control with 4÷20 mA:
To control the evaporating and condensing pressures it is necessary a
0
4÷20mA transducer.
2 = Temperature / pressure NTC – 0÷5Vdc:
The condensing temperature is controlled with NTC probe while for the
evaporating pressures of the circuits 1 and 2 and the pressure probe
configured as auxiliary output 1 and 2 are controlled with 0÷5Vdc transducers.
3 = Pressure control with 0÷5Vdc:
To control the evaporating and condensing pressures it is necessary a
ratiometric 0÷5Vdc transducer.
PB1 Configuration
0
If configured as digital input
o1
PB2 Configuration
0
If configured as digital input
o1
PB3 Configuration
0
If configured as digital input
o1
PB4 Configuration
0
If configured as digital input
o1
PB5 Configuration
0
If configured as digital input
o1
14
17
3
1
1
999
999
999
max
2
1
1
4
3
3
3
25
c63
25
c63
30
c63
30
c63
30
c63
M. u.
Resolution
1592015300 User manual iCHILL 200 L GB
CF 13
CF 14
CF 15
CF 16
CF 17
r1.3
09/09/2005
PB6 Configuration
If configured as digital input
PB7 Configuration
If configured as digital input
PB8 Configuration
If configured as digital input
PB9 Configuration
If configured as digital input
PB10 Configuration
If configured as digital input
0
o1
0
o1
0
o1
0
o1
0
o1
30
c63
25
c63
25
c63
25
c63
25
c63
-12.0
-10
-12.0
-10
-12.0
-10
-5.0
-72
-12.0
-10
-5.0
-72
-12.0
-10
-5.0
-72
-12.0
-10
-5.0
-72
-12.0
-10
-12.0
-10
-12.0
-10
-12.0
-10
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
12.0
53
12.0
53
12.0
53
5.0
72
12.0
53
5.0
72
12.0
53
5.0
72
12.0
53
5.0
72
12.0
53
12.0
53
12.0
53
12.0
53
50.0
725
50.0
725
50.0
725
50.0
725
50.0
725
50.0
725
50.0
725
50.0
725
0 -o1
0 -o1
0 -o1
0 -o1
0 -o1
0 -o1
0 -o1
0 -o1
0 -o1
0 -o1
0 -o1
0 -o1
0 -o1
0 -o1
0 -o1
0 -o1
0 -o1
0 -o1
c63
c63
c63
c63
c63
c63
c63
c63
c63
c63
c63
c63
c63
c63
c63
c63
c63
c63
Probe Offset
CF 18
PB1 Offset
CF 19
PB2 Offset
CF 20
PB3 Offset
CF 21
PB4 Offset
CF 22
PB5 Offset
CF 23
PB6 Offset
CF 24
PB7 Offset
CF 25
PB8 Offset
CF 26
PB9 Offset
CF 27
PB10 Offset
CF 28
Pressure value at 4mA or 0.5 Vdc of the PB3 transducer
CF 29
Pressure value at 20mA or 5 Vdc of the PB3 transducer
CF 30
Pressure value at 4mA or 0.5 Vdc of the PB4 transducer
CF 31
Pressure value at 20mA or 5 Vdc of the PB4 transducer
CF 32
Pressure value at 4mA or 0.5 Vdc of the PB5 transducer
CF 33
Pressure value at 20mA or 5 Vdc of the PB5 transducer
CF 34
Pressure value at 4mA or 0.5 Vdc of the PB6 transducer
CF 35
Pressure value at 20mA or 5 Vdc of the PB6 transducer
CF 36
CF 37
CF 38
CF 39
CF 40
CF 41
CF 42
CF 43
CF 44
CF 45
CF 46
CF 47
CF 48
CF 49
CF 50
CF 51
CF 52
CF 53
Configuration of ID1
Configuration of ID2
Configuration of ID3
Configuration of ID4
Configuration of ID5
Configuration of ID6
Configuration of ID7
Configuration of ID8
Configuration of ID9
Configuration of ID10
Configuration of ID11
Configuration of ID12
Configuration of ID13
Configuration of ID14
Configuration of ID15
Configuration of ID16
Configuration of ID17
Configuration of ID18
°C
°F
°C
°F
°C
°F
bar
psi
°C
°F
bar
psi
°C
°F
bar
psi
°C
°F
bar
psi
°C
°F
°C
°F
°C
°F
°C
°F
Bar
psi
Bar
psi
Bar
psi
Bar
psi
Bar
psi
Bar
psi
Bar
psi
Bar
psi
Dec
int
Dec
int
Dec
int
dec
int
Dec
int
dec
int
Dec
int
dec
int
Dec
int
dec
int
Dec
int
Dec
int
Dec
int
Dec
int
Dec
int
Dec
int
Dec
int
Dec
int
Dec
int
Dec
int
Dec
int
Dec
int
Digital Inputs
Pg.30/106
1592015300 User manual iCHILL 200 L GB
r1.3
09/09/2005
Relay Outputs
CF 54
CF 55
CF 56
CF 57
CF 58
CF 59
CF 60
CF 61
CF 62
CF 63
CF 64
CF 65
CF 66
CF 67
Configuration of RL1
Configuration of RL2
Configuration of RL3
Configuration of RL4
Configuration of RL5
Configuration of RL6
Configuration of RL7
Configuration of RL8
Configuration of RL9
Configuration of RL10
Configuration of RL11
Configuration of RL12
Configuration of RL13
Configuration of RL14
CF 76
Condensing proportional outputs
Circuit 1 output signal:
0= 0 – 10Vdc
1= 4 ÷ 20mA
2= PWM for mono phase fan control board
Circuit 2 output signal:
0= 0 – 10V
1= 4 ÷ 20Ma
2= PWM for mono phase fan control board
Uscite modulanti
Proportional output 1
0= Not enabled
1= Free cooling Dumper / Mixing valve
2= 3-way valve for hot water
3= Dumper for air change
4= auxiliary output
Relay driver ON / OFF
Proportional output 2
0= Not enabled
1= Free cooling Dumper / Mixing valve
2= 3-way valve for hot water
3= Dumper for air change
4= auxiliary output
Relay driver ON / OFF
Proportional output 3
0= Not enabled
1= Free cooling Dumper / Mixing valve
2= 3-way valve for hot water
3= Dumper for air change
4= auxiliary output
Relay driver ON / OFF
Proportional output 4
0= Not enabled
1= Free cooling Dumper / Mixing valve
2= 3-way valve for hot water
3= Dumper for air change
4= auxiliary output
Relay driver ON / OFF
Terminale remoto
Remote Panel 1 configuration
0= Not enabled
1= with NTC ambient temperature sensor
2= without NTC ambient temperature sensor
Remote Panel 2 configuration
0= Not enabled
1= with NTC ambient temperature sensor
2= without NTC ambient temperature sensor
Offset of the NTC probe of the remote terminal # 1
CF 77
Offset of the NTC probe of the remote terminal # 2
CF 78
Icon function
CF 68
CF 69
CF 70
CF 71
CF 72
CF 73
CF 74
CF 75
0 -o1
0 -o1
0 -o1
0 -o1
0 -o1
0 -o1
0 -o1
0 -o1
0 -o1
0 -o1
0 -o1
0 -o1
0 -o1
0 -o1
c58
c58
c58
c58
c58
c58
c58
c58
c58
c58
c58
c58
c58
c58
0
2
0
2
0
4
o1
c28
0
4
o1
c28
0
4
o1
c28
0
4
o1
c28
0
2
0
2
-12.0
-10
-12.0
-10
12.0
53
12.0
53
Icon function
0=
chiller /
heat pump
1=
chiller /
heat pump
0
Chiller / heat pump selection mode
1
°C
°F
°C
°F
Dec
int
Dec
int
1592015300 User manual iCHILL 200 L GB
CF 79
r1.3
09/09/2005
0= from keyboard
1= from digital input
2= from analogue input
CF 80
Automatic Change over
Change over setpoint for chiller/ heat pump inversion if Par. CF80=2
CF 81
Change over temperature differential if Par. CF80=2
CF 82
°C or °F selection
0= °C / °BAR
1= °F / °psi
0
2
-30.0
-22
0
0
70.0
158
25.0
45
0
1
°C
°F
°C
°F
Dec
int
Dec
int
U. m. Unit of measurement
Voltage frequency
Power supply frequency
0= 50 Hz
1= 60 Hz
0
2= cc voltage
( ATTENTION with Par. CF81 = 2 the proportional outputs for fan control are
not enabled and the frequency alarm is inhibited)
Serial Address
CF 84
Serial address
1
CF 85
Firmware Release
CF 86
Eeprom parameter map
Pr1
Password
0
Pr2
Password
0
Pr3
Password
0
Dynamic Setpoint
Parameters Description
min
Sd 1
Maximum dynamic Offset in chiller mode
-30.0
-54
Sd 2
Maximum dynamic Offset in heat pump mode
-30.0
-54
Sd 3
External air setpoint in chiller mode
-30.0
-22
Sd 4
External air setpoint in heat pump mode
-30
-22
Sd 5
External air differential in chiller mode
-30.0
-54
Sd 6
External air differential in heat pump mode
-30.0
-54
Pr1
Password
0
Pr2
Password
0
Pr3
Password
0
Energy saving
Parameters Description
min
ES 1
Start of the Time band 1 (0÷24)
0
ES 2
End of the Time Band 1 (0÷24)
0
ES 3
Start of the Time band 2 (0÷24)
0
ES 4
End of the Time Band 2 (0÷24)
0
ES 5
Start of the Time band 3 (0÷24)
0
ES 6
End of the Time Band 3 (0÷24)
0
ES 7
Monday: energy saving activated
0-0
Automatic unit on-off
ES 8
Tuesday energy saving activated
0-0
Automatic unit on-off
ES 9
Wednesday energy saving activated
0-0
Automatic unit on-off
ES 10
Thursday energy saving activated
0-0
Automatic unit on-off
ES 11
Friday energy saving activated
0-0
Automatic unit on-off
ES 12
Saturday energy saving activated
0-0
Automatic unit on-off
ES 13
Sunday energy saving activated
0-0
Automatic unit on-off
ES 14
Energy Saving setpoint offset in chiller mode
-30.0
-54
ES 15
Energy Saving differential in chiller mode
0.0
0
ES 16
Energy Saving setpoint offset in heat pump mode
-30.0
-54
CF 83
2
247
999
999
999
max
30.0
54
30.0
54
70.0
158
70.0
158
30.0
54
30.0
54
999
999
999
M. u.
°C
°F
°C
°F
°C
°F
°C
°F
°C
°F
°C
°F
max
udm
24.00
Hr
24.00
Hr
24.00
Hr
24.00
Hr
24.00
Hr
24.00
Hr
Resolution
Dec
int
Dec
int
Dec
int
Dec
int
Dec
int
Dec
int
Risoluzione
10 Min
10 Min
10 Min
10 Min
10 Min
10 Min
7-7
7-7
7-7
7-7
7-7
7-7
7-7
30.0
54
25.0
45
30.0
54
°C
°F
°C
°F
°C
°F
Dec
int
Dec
int
Dec
int
Pg.32/106
1592015300 User manual iCHILL 200 L GB
ES 17
Energy Saving differential in heat pump mode
Pr1
Pr2
Pr3
Password
Password
Password
r1.3
09/09/2005
Compressors
Parameters Description
CO 1
Minimum compressor ON time after the start-up.
CO 2
Minimum compressor OFF time after the switching off.
CO 3
ON delay time between two compressors or compressor and valve. During
this time the led of the next resource is blinking.
CO 4
CO 5
CO 6
CO 7
CO 8
CO 9
CO 10
CO 11
CO 12
CO 13
CO 14
CO 15
CO 16
CO 17
CO 18
CO 19
0.0
0
0
0
0
25.0
45
999
999
999
°C
°F
min
max
0
250
0
250
1
250
Sec
0
250
Sec
0
250
10
Sec
0
3
0
3
0
250
Sec
0
250
Sec
0
2
0
100
Dec.
di Sec
0.1 sec
0
50
Dec.
di Sec
0.1 sec
0
250
sec
0
2
0
1
0
2
1
250
Min
0
250
Min
0
999
10Hr
OFF delay time between two compressors or compressor and valve. During
this time the led of the next resource is blinking.
Output time delay after the main power supply start-up to the unit.
All the loads are delayed in case of frequently power failures.
Partialization (Capacity Control)
Functioning (see Capacity Control)
0= With on/off steps
1= Continuous with steps and direct action
2= Continuous with steps and reverse action
3= Continuous with steps and direct total action
Start-up with minimum compressor power / automatic start-unloading valve
0 = Only at the compressor start-up (Minimum power automatic startunloading valve off)
1= At the compressor start-up and during the termoregulation (Minimum
power / automatic start-unloading valve off)
2 = Only at the screw compressor start-up (Minimum power automatic startunloading valve off)
3= At the compressor start-up and during the termoregulation (Minimum
power / Unloading valve ON with compressor off)
Relay ON time of the Solenoid valve Intermittent for screw compressor, with 0
the function is not enabled.
Relay OFF time of the Solenoid valve Intermittent for screw compressor
Compressor start-up
Kind of compressor start-up
0= Direct ( vedi avviamento compressors )
1= Part - winding
2= Star-delta
If CO10= 1 part - winding start-up time. To change the time delay between the
two contactors of the two compressor circuits.
Se CO10= 2 Star-delta start-up time. To change the time delay between the
contactor of the line 1 and the contactor of the centre of the star. (see part –
winding /start-triangle functioning)
If CO10= 2 Time of Star-delta start. Time delay to turn off the centre star
contactor and to turn on the line 2 contactor (see Star-delta functioning)
By-pass gas valve start-up time / automatic start-unloading valve (capacity
step control)
Rotating – Balancing – Compressors Thermoregulation
Compressor rotation (See compressor rotation)
0 = Sequential
1 = Compressors rotation based on time running hours
2 = Compressors rotation based on number of starts-up
Circuit balancing (See Circuit balancing)
0= Circuit saturation
1= Circuit balancing
Evaporator water pump
Operative mode of the evaporator pump / supply fan (See Evaporator pump
function)
0= Not enabled (evaporator pump or supply fan).
1= Continuous. When the unit is running in Chiller or HP the pump or the
supply fan is running.
2= With compressor. When a compressor is running also the pump or the
supply fan is running.
ON compressor delay after water pump / supply fan start-up (See water pump
functioning).
OFF delay evaporator water pump / supply fan after compressor switching
OFF. This delay is also active when the unit is turned in stand-by (See
evaporator water pump function).
Number of time running hours for pump rotation (See water pump group
function)
udm
10
sec
10
sec
Dec
int
Risoluzione
10 sec
10 sec
10 sec
10Hr
1592015300 User manual iCHILL 200 L GB
CO 20
r1.3
09/09/2005
CO 37
Time to make run the pumps together before rotating from one to the other
(See water pump group function)
Condenser water pump
Operative mode for condenser water pump (See condenser water pump
function)
0= Not enabled.
1= Continuous. When the unit is running in Chiller or HP the is running.
2= With compressor. When a compressor is running also the pump is running.
Free
OFF delay condenser water pump after compressor switching OFF. This
delay is also active when the unit is turned in stand-by (See evaporator water
pump function).
Number of time running hours for pump rotation (See water pump group
function).
Time to make run the pumps together before rotating from one to the other
(See water pump group function).
Load maintenance
Compressor 1 hour counter set (See maintenance request)
Compressor 2 hour counter set (See maintenance request)
Compressor 3 hour counter set (See maintenance request)
Compressor 4 hour counter set (See maintenance request)
Compressor 5 hour counter set (See maintenance request)
Compressor 6 hour counter set (See maintenance request)
“Evaporator pump / Supply fan” hour counter set (See maintenance request)
nd
2 Evaporator pump hour counter set (See maintenance request)
Condenser pump hour counter set (See maintenance request)
nd
2 Condenser pump hour counter set (See maintenance request)
Pump down
Pump down operating mode (See pump down ON/OFF function)
0= Not enabled
1= Unit off with pump–down, unit on without pump–down
2= Unit off with pump–down, unit on with pump–down
3= Chiller mode off with pump–down, chiller mode on without pump–down
4= Chiller mode off with pump–down, chiller mode on with pump–down
Pump–down pressure setpoint (See pump down ON/OFF function)
CO 38
Pump-down pressure differential (See pump down ON/OFF function)
CO 39
Maximum pump–down time duration at start-up and stop (See pump down
0
ON/OFF function)
Evaporator Unloading
Unloading compressor setpoint in chiller. From high temperature of the
-30
evaporator water inlet (See unloading function).
0
Unloading Differential. From high temperature of the evaporator water inlet
0.0
(See unloading function).
0
Delay time to engage the Unloading function from high temperature of the
0
evaporator water inlet (See unloading function).
Maximum unloading duration time to keep activated the Unloading function
0
from high temperature of the evaporator water inlet (See unloading function).
Condenser Unloading
Unloading compressor setpoint. From temperature / pressure in chiller mode
0
(See unloading function).
0
Unloading Differential. From temperature / pressure in chiller mode (See
0.0
unloading function).
0
Unloading compressor setpoint. From temperature / pressure in HP mode
0
(See unloading function).
0
Unloading Differential. From temperature / pressure in HP mode (See
0.0
unloading function).
0
Maximum unloading duration time from temperature/pressure control.
0
Number of steps for circuit with active unloading
st
1= 1 step
1
nd
2= 2 step
rd
3= 3 step
Minimum ON time of the capacity step after the unloading function start (only
0
for capacity compressor)
Compressor liquid injection
Setpoint of the solenoid valve (on) of the liquid injection
0
0
Setpoint of the solenoid valve (off) of the liquid injection
0.0
0
Password
0
Password
0
Password
0
CO 21
CO 22
CO 23
CO 24
CO 25
CO 26
CO 27
CO 28
CO 29
CO 30
CO 31
CO 32
CO 33
CO 34
CO 35
CO 36
CO 40
CO 41
CO 42
CO 43
CO 44
CO 45
CO 46
CO 47
CO 48
CO 49
CO 50
CO 51
CO 52
Pr1
Pr2
Pr3
0
250
Sec
0
2
0
250
Min
0
999
10Hr
0
250
Sec
0
0
0
0
0
0
0
0
0
0
999
999
999
999
999
999
999
999
999
999
10 Hr
10 Hr
10 Hr
10 Hr
10 Hr
10 Hr
10 Hr
10 Hr
10 Hr
10 Hr
10 Hr
10 Hr
10 Hr
10 Hr
10 Hr
10 Hr
10 Hr
10 Hr
10 Hr
10 Hr
0
4
0
0
0
0
50.0
725
14.0
203
Bar
psi
Bar
psi
Dec
int
Dec
int
250
Sec
70.0
725
25.0
45
°C
°F
°C
°F
Dec
int
Dec
int
250
Sec
10sec
250
Min
50.0
725
14.0
203
50.0
725
14.0
203
250
Bar
psi
Bar
Psi
Bar
psi
Bar
Psi
Min
10Hr
Dec
int
Dec
int
Dec
int
Dec
int
3
250
150
302
25.0
45
999
999
999
Sec
°C
°F
°C
°F
Dec / int
int
Dec
int
Pg.34/106
1592015300 User manual iCHILL 200 L GB
r1.3
09/09/2005
Auxiliary relay menu function
Parameters Description
US 3
Auxiliary relay of the circuit 1
Auxiliary relay 1 operating mode (See graph and auxiliary relay functions)
0= Not enabled
1= Always available with direct action
2= Available only when the unit is on with direct action
3= Always available with reverse action
4= Available only when the unit is on with reverse action
Analog input configuration for auxiliary relay 1 control. Allows to select which
probe value Pb1..Pb10 controls the relay
Auxiliary setpoint 1 (See graph and auxiliary relay functions)
US 4
Auxiliary differential 1 (See graph and auxiliary relay functions)
US 1
US 2
US 7
Auxiliary relay circuit 2
Auxiliary relay 2 operating mode (See graph and auxiliary relay functions)
0= Not enabled
1= Always available with direct action
2= Available only when the unit is on with direct action
3= Always available with reverse action
4= Available only when the unit is on with reverse action
Analogue input configuration for auxiliary relay 2 control . Allows to select
which probe value Pb1..Pb10 controls the relay
Auxiliary setpoint 2 (See graph and auxiliary relay functions)
US 8
Auxiliary differential 1 (See graph and auxiliary relay functions)
Pr1
Pr2
Pr3
Password
Password
Password
US 5
US 6
min
0
4
1
10
-30.0
-22
0.0
0
0.0
0
0.0
0
70.0
158
50.0
725
25.0
45
14.0
203
0
4
1
10
-30.0
-22
0.0
0
0.0
0
0.0
0
0
0
0
Condenser fan
Parameters Description
min
FA 1
Fan configuration output
0 = Not enabled
1 = Always on
0
2 = ON/OFF regulation with steps
3 = ON/OFF Continuous regulation
4 = Proportional speed control
FA 2
Fan operating mode
0= Dependent from the compressor
0
1= Independent from the compressor
FA 3
If the condenser fan control is the triac output, when the regulation starts the
trigger output will drive the condenser fan at the maximum voltage for the time
0
FA 3 then, then the regulation will follow the temperature/pressure of the
probe.
FA 4
Phase shifting of the fan motor
0
FA 5
FA 6
FA 7
FA 8
FA 9
Number of condensing circuits
0= one condenser circuit
1= tow condenser circuits
Pre-ventilation time before turning on the compressor in chiller mode.
To turn on the fan at the maximum speed before the compressor and reduce
the successive condensing temperature/pressure increasing. (only if FA01=4)
Fan in Chiller mode
Minimum speed for condenser fan in Chiller mode.
To set the minimum fan speed percentage value (30..100%), it is related to
the fan power supply.
Maximum speed for condenser fan in Chiller mode.
To set the maximim fan speed percentage value (30..100%), it is related to
the fan power supply.
Proportional speed control FA01 = 4
Temperature or pressure limit to enable the minimum speed FA 7
ON/OFF regulation FA01 = 2/3
SETpoint step n° 1
max
M. U.
Resolution
°C
°F
Bar
Psi
°C
°F
Bar
Psi
Dec
int
Dec
int
Dec
int
Dec
int
70.0
158
50.0
725
25.0
45
14.0
203
999
999
999
°C
°F
Bar
Psi
°C
°F
Bar
Psi
Dec
int
Dec
int
Dec
int
Dec
int
max
M. U.
Resolution
4
1
250
Sec
8
Micro
Sec
0
1
0
250
Sec
30
100
%
30
100
%
-30.0
-22
0.0
0
70.0
158
50.0
725
°C
°F
Bar
Psi
250µs
Dec
int
Dec
int
1592015300 User manual iCHILL 200 L GB
FA 10
FA 11
FA 12
r1.3
09/09/2005
Proportional speed control FA01 = 4
Temperature or pressure limit to enable the maximum speed FA 8
ON/OFF regulation FA01 = 2/3
SETpoint step n° 2
Proportional speed control FA01 = 4
Proportional band for condenser fan control in chiller
To set the temperature/pressure differential between the minimum and the
maximum of the fan speed regulation.
ON/OFF regulation FA01 = 2/3
Differential step circuit n° 1
Proportional speed control FA01 = 4
CUT-OFF differential in chiller. To set a temperature/pressure differential to
stop the fan.
ON/OFF regulation FA01 = 2/3
Differential step circuit n° 2
FA 13
Over ride CUT- OFF in chiller. To set a temperature/pressure differential to
keep the minimum fan speed.
FA 14
CUT-OFF time delay. To set a time delay before activating the CUT-OFF
function after the fan start-up.
If after the compressor start-up the proportional regulator requires to turn off
the fan (cut-off) and FA14≠0, the fan is on at the minimum speed for the time
set in this parameter. If FA14=0 the function is disabled.
Night speed in chiller. To set the maximum fan speed percentage value
(30..100%), it is related to the fan power supply.
Fan in Heat pump mode
Minimum speed for condenser fan in Heat Pump mode.
To set the minimum fan speed percentage value (30..100%), it is related to
the fan power supply.
Maximum speed for condenser fan in Heat Pump mode.
To set the maximum fan speed percentage value (30..100%), it is related to
the fan power supply.
Proportional speed control FA01 = 4
Temperature or pressure limit to enable the minimum speed FA16
ON/OFF regulation FA01 = 2/3
SETpoint step n° 1
Proportional speed control FA01 = 4
Temperature or pressure limit to enable the maximum speed FA17
ON/OFF regulation FA01 = 2/3
SETpoint step n° 2
Proportional speed control FA01 = 4
Proportional band for condenser fan control in heat pump
To set the temperature/pressure differential between the minimum and the
maximum of the fan speed regulation.
ON/OFF regulation FA01 = 2/3
Differential step circuit n° 1
Proportional speed control FA01 = 4
CUT-OFF differential in heat pump. To set a temperature/pressure differential
to stop the fan.
ON/OFF regulation FA01 = 2/3
Differential step circuit n° 2
Over ride CUT- OFF in Heat pump. To set a temperature/pressure differential
to keep the minimum fan speed.
FA 15
FA 16
FA 17
FA 18
FA 19
FA 20
FA 21
FA 22
FA 23
FA 24
Night speed in Heat pump. To set the maximum fan speed percentage value
(30..100%), it is related to the fan power supply.
Hot start
Hot start setpoint
FA 25
Hot start differential
FA 26
3 / 4 step condenser Fan in Chiller mode
ON/OFF regulation FA01 = 2/3
SETpoint step n° 3
FA 27
ON/OFF regulation FA01 = 2/3
SETpoint step n° 4
-30.0
-22
0.0
0
70.0
158
50.0
725
°C
°F
Bar
Psi
Dec
int
Dec
int
0.0
0
0.0
0
25.0
45
14.0
203
°C
°F
Bar
Psi
Dec
int
Dec
int
0.0
0
0.0
0
25.0
45
14.0
203
°C
°F
Bar
Psi
Dec
int
Dec
int
0.0
0
0.0
0
25.0
45
14.0
203
°C
°F
Bar
Psi
Dec
int
Dec
int
0
250
Sec
30
100
%
30
100
%
30
100
%
-30.0
-22
0.0
0
-30.0
-22
0.0
0
70.0
158
50.0
725
70.0
158
50.0
725
°C
°F
Bar
Psi
°C
°F
Bar
Psi
Dec
int
Dec
int
Dec
int
Dec
int
0.0
0
0.0
0
25.0
45
14.0
203
°C
°F
Bar
Psi
Dec
int
Dec
int
0.0
0
0.0
0
25.0
45
14.0
203
°C
°F
Bar
Psi
Dec
int
Dec
int
0.0
0
0.0
0
25.0
45
14.0
203
°C
°F
Bar
Psi
Dec
int
Dec
int
30
100
%
-30.0
-22
0.0
0
70.0
158
25.0
45
°C
°F
°C
°F
Dec
int
Dec
int
-30.0
-22
0.0
0
-30.0
-22
0.0
0
70.0
158
50.0
725
70.0
158
50.0
725
°C
°F
Bar
Psi
°C
°F
Bar
Psi
Dec
int
Dec
int
Dec
int
Dec
int
3 / 4 step condenser Fan in heat pump
Pg.36/106
1592015300 User manual iCHILL 200 L GB
r1.3
09/09/2005
FA 28
ON/OFF regulation FA01 = 2/3
SETpoint step n° 3
FA 29
ON/OFF regulation FA01 = 2/3
SETpoint step n° 4
Pr1
Pr2
Pr3
Password
Password
Password
Parameter
Ar 1
Antifreeze heaters – Integration heating - boiler
Description
Anti-freeze heaters/integration heating setpoint for air/air unit in Chiller mode.
To set a temperature value, below this value the anti-freeze relay is activated.
Regulation band for antifreeze in Chiller mode.
Ar 2
Ar 3
Ar 4
Ar 5
Set Anti-freeze heaters/integration heating setpoint for air/air unit in HP mode.
To set a temperature value, below this value the anti-freeze relay is activated.
Regulation band for antifreeze in HP mode.
Ar 12
Antifreeze heaters / integration heating in defrost
0= ON only with thermoregulation control
1= ON with thermoregulation and during the defrosting cycle
Antifreeze alarm probe / heaters / appoggio in Chiller mode.
0= Not enabled
1= Evaporator inlet
2= Evaporator outlet 1 and 2
3= Evaporator outlet 1 and 2 and common outlet
Antifreeze alarm probe / heaters / support heaters in HP mode.
0= Not enabled
1= Evaporator inlet.
2= Evaporator outlet 1 and 2.
3= Evaporator outlet 1 and 2 and common outlet.
Thermoregulation probe for anti-freeze alarm / condenser heaters.
0= not enabled.
1= Condenser common water inlet probe.
2= Condenser common water inlet and condenser inlet 1 / 2 probe.
3= Condenser water outlet 1 / 2 probe.
4= Condenser water outlet 1 / 2 and common outlet.
Anti-freeze heaters or condenser/evaporator water pump control with unit in
remote OFF or stand-by mode:
0= Control not enable
1=Controlled by anti-freeze thermoregulation.
Anti-freeze heaters control for condenser/evaporator faulty probe:
0= Anti-freeze heaters OFF
1= Anti-freeze heaters ON
Boiler function
Boiler function
0=Not enabled
1=Enabled for integration heating
2= Enabled for heating
External air temperaure setpoint for boiler heaters (on)
Ar 13
Temperature differential for boiler heaters (off)
Ar 14
Ar 15
Time delay before turning the boiler on
Boiler function in Chiller mode
Setpoint for boiler heaters (on) in chiller
Ar 16
Proportional band for boiler heaters in chiller
Ar 17
Boiler function in heat pump
Setpoint for boiler heaters (on) in HP
Ar 18
Proportional band for boiler heaters in HP
Ar 19
External air setpoint to stop the compressor as integration function
Ar 20
External air differential to stop the compressor as integration function
Pr1
Pr2
Password
Password
Ar 6
Ar 7
Ar 8
Ar 9
Ar 10
Ar 11
-30.0
-22
0.0
0
-30.0
-22
0.0
0
0
0
0
70.0
158
50.0
725
70.0
158
50.0
725
999
999
999
°C
°F
Bar
Psi
°C
°F
Bar
Psi
Dec
int
Dec
int
Dec
int
Dec
int
min
-30.0
-22
max
70.0
158
m. u.
°C
°F
0.1
0
25.0
45
°C
°F
Risoluzione
Dec
int
Dec
Int
-30.0
-22
-30.0
-22
70.0
158
70.0
158
°C
°F
°C
°F
Dec
int
Dec
int
0
1
0
3
0
3
0
4
0
1
0
1
0
2
-30.0
-22
0
0
0
70.0
158
25.0
45
250
°C
°F
°C
°F
Dec
int
Dec
int
Min
-30.0
-22
-30.0
-22
70.0
158
70.0
158
°C
°F
°C
°F
Dec
int
Dec
int
-30.0
-22
0.1
0
-30.0
-22
0.1
0
0
0
70.0
158
25.0
45
70.0
158
25.0
45
999
999
°C
°F
°C
°F
°C
°F
°C
°F
Dec
int
Dec
int
Dec
int
Dec
int
1592015300 User manual iCHILL 200 L GB
Pr3
r1.3
09/09/2005
Password
0
999
min
max
Defrost
Parameter
dF 1
dF 2
Description
Defrost configuration:
0= Not enabled
1= Temperature / pressure
2= start depends on par. dF24 stop for time duration
3= start depends on par. dF24 stop for external contact
Temperature or pressure of the defrost start-up
dF 3
Temperature or pressure of the defrost stop
dF 4
dF 5
dF 6
dF 7
dF 8
dF 9
dF 10
Minimum defrost duration.
Maximum defrost duration.
Time delay between the defrost of two circuits
OFF compressor delay before the defrost
OFF compressor delay after the defrost
Defrost interval time of the same circuit
st
Temperature setpoint for combined defrost of the 1 circuit after parameter
DF10 counting.
st
Temperature setpoint for combined defrost end of the 1 circuit.
dF 11
dF 12
dF 13
dF 14
nd
Temperature setpoint for combined defrost of the 2 circuit after parameter
DF10 counting.
nd
Temperature setpoint for combined defrost end of the 2 circuit.
st
dF 18
Activation of all the steps of the 1 circuit during the defrost.
0= Not enabled
1= Enabled
nd
Activation of all the steps of the 2 circuit during the defrost.
0= Not enabled
1= Enabled
Time delay between two compressor ON in defrost mode
Fan control during defrost / dripping time
0= Not enabled
1= Only in defrost
2= For both functions defrost / dripping time
Pressure / temperature setpoint to force the ventilation ON during the defrost.
dF 19
dF 20
Forced defrost
Minimum time delay before a forced defrost
Pressure / temperature setpoint for a forced defrost
dF 21
Forced defrost differential
dF 15
dF 16
dF 17
udm
Risoluzione
°C
°F
bar
psi
°C
°F
bar
psi
Sec
Min
Min
Sec
Sec
Min
°C
°F
°C
°F
°C
°F
°C
°F
Dec
int
Dec
Int
Dec
int
Dec
Int
0
3
-30.0
-22
0.0
0
-30.0
-22
0.0
0
0
1
0
0
0
1
-30.0
-22
-30.0
-22
-30.0
-22
-30.0
-22
70.0
158
50.0
725
70.0
158
50.0
725
250
250
250
250
250
99
70.0
158
70.0
158
70.0
158
70.0
158
0
1
0
1
0
250
0
2
-30.0
-22
0.0
0
70.0
158
50.0
725
°C
°F
bar
psi
Dec
int
Dec
Int
0
-30.0
-22
0.0
0
0.1
0
0.0
0
250
70.0
158
50.0
725
25.0
45
14.0
203
sec
°C
°F
bar
psi
°C
°F
Bar
Psi
Dec
int
Dec
int
Dec
int
Dec
int
Defrost operative mode
Defrost start-up with 2 circuits
0= Independent
0
1= If both have reached the necessary requirements
2= If one has reached the necessary requirements
dF 23
End defrost for two circuits and common ventilation.
0= Independent
0
1= If both have reached the necessary end defrost requirements
2= If one has reached the necessary end defrost requirements
Start / stop defrost from analog input
Parameters description
min
dF 24
Start / stop defrost probe
0= start and stop with condenser temperatur / pressure probe
1= start with evaporator pressure probe / stop with condenser temperatur /
pressure probe
0
2= start with condenser temperatur / pressure probe / stop with evaporator
pressure probe
3= start and stop with evaporator pressure probe
Dec
int
Dec
int
Dec
int
Dec
int
Sec
dF 22
2
2
max
udm
resolution
3
Pg.38/106
1592015300 User manual iCHILL 200 L GB
Pr1
Pr2
Pr3
Password
Password
Password
r1.3
09/09/2005
0
0
0
Recovery
Parameters description
min
rC 1
Recovery modes
0 = not enabled
0
1 = 2 indipendent circuit
2 = both the circuit in parallel
rC 2
Delay time delay with step forced off
0
rC 3
Delay time delay with step forced off after the recovery valve activation
0
rC 4
Recovery minimum time
0
rC 5
Minimum interval time between the end and the beginning of the next
0
recovery
rC 6
Temperature setpoint to disable the recovery
-30.0
-22
0.0
0
rC 7
Temperature differential to restore the recovery
0.1
0
0.0
0
rC 8
Maximum time with recovery disabled (if temperature/pressure within rC60
rC7)
Pr1
Password
0
Pr2
Password
0
Pr3
Password
0
Alarms
Parameters Description
min
Low alarm
AL 1
Low pressure alarm delay from analog and digital input
0
AL 2
Low pressure alarm delay from digital input after compressor stop if the low
10
pressure switch is used for the pump down.
AL 3
Low pressure alarm setpoint from analogue input
-30.0
-22
0.0
0
AL 4
Low pressure alarm differential from analogue input
0.1
0
0.0
0
AL 5
Maximum number of low pressure events from digital/analogue inputs:
Manual reset if AL05 = 0
0
Automatic reset if AL05 =16
From automatic to manual reset if AL05= 1..15
AL 6
Low temperature/pressure alarm during defrost
0= Not enabled
0
1= Enabled
AL 7
Low temperature/pressure alarm delay during defrost
0
AL 8
Low temperature/pressure alarm with unit in OFF or stand – by:
0 = Not enabled
0
1= Alarm enabled
High Alarm
AL 9
High temperature/pressure alarm from analogue input
-30.0
-22
0.0
0
AL 10
High temperature/pressure alarm differential from analogue input
0.1
0
0.0
0
Oil Alarm
AL 11
Low oil pressure / level delay from digital input
0
AL 12
Minimum time for low oil pressure / level from digital input activation in normal
0
working condition.
AL 13
Maximum number of low oil pressure/level events:
Always manual reset if AL13= 0
0
Always automatic reset if AL13 =16
From automatic to manual reset if AL13 = 1..15
Flow alarm
999
999
999
max
udm
resolution
2
250
250
250
Sec
Sec
Min
250
Min
70.0
158
50.0
725
25.0
45
14.0
203
°C
°F
Bar
Psi
°C
°F
Bar
Psi
250
Min
Dec
int
Dec
int
Dec
int
Dec
int
999
999
999
max
m. u.
250
Sec
250
Sec
70.0
158
50.0
725
25.0
45
14.0
203
°C
°F
bar
psi
°C
°F
bar
psi
Resolution
Dec
int
Dec
int
Dec
int
Dec
Int
16
1
250
Sec
1
70.0
158
50.0
725
25.0
45
14.0
203
°C
°F
bar
psi
°C
°F
bar
psi
250
Sec
250
Sec
16
Dec
int
Dec
int
Dec
int
Dec
int
1592015300 User manual iCHILL 200 L GB
AL 14
r1.3
09/09/2005
AL 24
Configuration
0= Not enabled
1= Only for chiller
2= Only for heat pump
3= For both chiller and heat pump
“Flow switch / supply fan overload” alarm delay after pump/fun activation.
Maximum number of “flow switch/supply fan” alarm events
Always manual reset if AL16 = 0
Always automatic reset if AL16 =16
From automatic to manual reset if AL16 =1..15
Minimum “Flow switch / supply fan overload” active time duration.
Minimum “Flow switch / supply fan overload” not active time duration.
Compressor overload alarm
Compressor overload alarm delay after compressor start-up
Maximum number of compressor overload alarm events
Always manual reset if AL20 = 0
Always automatic reset if AL20 =16
From automatic to manual reset if AL20 =1..15
Pump down alarm
Maximum number of pump down alarm events per hour in stop condition.
After this number the alarm is logged, displayed and signalled with alarm
relay + buzzer.
Manual reset if AL21 = 0
Automatic reset if AL21 =16
From automatic to manual reset if AL21 =1..15
Maximum number of pump down alarm events per hour in start-up condition.
After this number the alarm is logged, displayed and signalled with alarm
relay + buzzer.
Always manual reset if AL22 = 0
Always automatic reset if AL22 =16
From automatic to manual reset if AL21 =1..15 and parameter AL23 config.
Select if the pump down alarm must change from automatic to manual reset:
0= Always automatic reset
1= Manual reset after AL21 alarm events
Anti-freeze alarm in Chiller mode
Minimum antifreeze setpoint in chiller (from –30 °C to AL24)
AL 25
Maximum antifreeze setpoint in chiller (from AL24 to 70 °C)
AL 26
AL 31
Setpoint temperature for low anti-freeze alarm, low ambient temperature
(air/air), low temperature air outlet (air/air). From AL24 to AL25.
Differential of alarm reset in Chiller mode for anti-freeze, low ambient air
temperature or low outlet air temperature alarms.
Alarm delay for anti-freeze, low ambient air temperature or low outlet air
temperature. The temperature must be lower than AL26 for this time duration
before having the alarm event.
Maximum number of alarm events anti-freeze, low ambient air temperature or
low outlet air temperature before changing from automatic to manual alarm
reset:
Always manual reset if AL29 = 0
Always automatic reset if AL29 = 16
From automatic to manual if AL29 = 1. .15
Anti-freeze alarm configuration in chiller
0= to turn the compressors off when the anti-freeze control probe is lower
than AL26 (after the time delay), the display shows the alarm label.
Buzzer and Alarm relay are not activated.
1= to turn the compressors off when the anti-freeze control probe is lower
than AL26 (after the time delay), the display shows the alarm label.
Buzzer and Alarm relay are activated.
Anti-freeze alarm in Heat pump mode
Setpoint of the minimum limit in heat pump (va da – 30 °C a AL32)
AL 32
Setpoint of the maximum limit in heat pump (va da AL31 a 70 °C)
AL 33
Anti-freeze alarm setpoint in heat pump
Setpoint temperature for low anti-freeze alarm, low ambient temperature
(air/air), low temperature air outlet (air/air). (from AL31 to AL32)
Alarm differential in heat pump. To reset the anti-freeze, low ambient
Temperature (air/air), low temperature air outlet (air/air) alarms.
AL 15
AL 16
AL 17
AL 18
AL 19
AL 20
AL 21
AL 22
AL 23
AL 27
AL 28
AL 29
AL 30
AL 34
0
3
0
250
0/1
16
0
0
250
250
Sec
Sec
0
250
Sec
0
16
0
16
0
16
0
1
-30.0
-22
AL24
AL24
Sec
70.0
158
°C
°F
°C
°F
Dec
int
Dec
int
AL24
AL25
°C/°F
Dec/int
0
0
25.0
45
°C
°F
Dec
int
0
250
Sec
0
16
0
1
-30.0
-22
AL31
AL31
70.0
158
°C
°F
°C
°F
Dec
int
Dec
int
AL31
AL32
°C/°F
Dec/int
0
0
25.0
45
°C
°F
Dec
int
Pg.40/106
1592015300 User manual iCHILL 200 L GB
AL 35
r1.3
09/09/2005
AL 39
Anti-freeze alarm delay in HP for low outlet air temperature (air/air)
Attention
If during the Stand-by or remote off there is an anti-freeze alarm event, and
the AL35 <>0, starting the heat pump mode, from keyboard or digital input. In
this case the anti-freeze alarm is aborted and the compressor starts for the
AL35 time to heat the air or the water.
After the AL35 time if the antifreeze probe value is still lower than AL33
setpoint, for maximum AL36 seconds, the unit is stopped and the anti-freeze
alarm is generated again.
Anti-freeze alarm delay for low air ambient temperature or low outlet air
temperature in heat pump normal condition.
The detected temperature must be lower than AL33 for the time AL36 before
giving the alarm
Maximum number of anti-freeze alarm events for low air ambient temperature
or low outlet air temperature in heat pump. It sets the alarm reset condition:
Always manual reset AL37 = 0
Always automatic reset AL37 = 16
From automatic to manual reset if AL37 = 1..15
Anti-freeze alarm configuration in heat pump
0= to turn the compressors off when the anti-freeze control probe is lower
than AL33 (after the time delay), the display shows the alarm label.
Buzzer and Alarm relay are not activated.
1= to turn the compressors off when the anti-freeze control probe is lower
than AL33 (after the time delay), the display shows the alarm label.
Buzzer and Alarm relay are activated.
Compressor high discharge temperature
Compressor high discharge temperature setpoint
AL 40
Compressor high discharge temperature differential
AL 41
Number of compressor high discharge temperature events per hour to
determine the alarm reset condition:
Always manual reset if AL41 = 0
0
Always automatic reset if AL41 =16
From automatic to manual if AL41 = 1..15
Maximum number of generic alarm events (each event stop the regulation)
before turning the alarm from automatic to manual:
Always manual AL42 = 0
0
Always automatic AL42 =16
From manual to utomatic if AL42 value is between 1 and 15
Generic alarm delay time after the digital input activation
0
Generic alarm delay time after the digital input is not activate
0
AL 36
AL 37
AL 38
AL 42
AL 43
AL 44
AL 45
AL 46
AL 47
Pr1
Pr2
Pr3
Alarm relay
Enable alarm relay with unit in off or stand – by:
0= Alarm output not enabled
1= Alarm output enabled
Password reset: Alarm log – Compressor overload
Password value to reset the alarm log or the compressor overload alarm.
Thermal alarm of the compressor
0= lock the compressor
1= lock the whole circuit
Password
Password
Password
0
250
Sec
0
250
Sec
0
16
0
1
0
0
0
0
150
302
25.0
45
°C
°F
°C
°F
Dec / int
int
Dec
int
16
16
250
250
0
1
0
999
0
1
0
0
0
999
999
999
Sec
10
sec
10 sec
10 PROGRAMMING WITH THE “HOT KEY 64”
10.1 DOWNLOAD: HOW TO PROGRAM AN INSTRUMENT WITH A
PROGRAMMED “HOT KEY”
1. Turn off the instrument supply
2. Insert the hot key.
3. Turn on the power supply.
4. Immediately the parameters are downloaded.
During the download the regulation is locked and the top display shows the “doL” blinking label. At the end of the download will appear:
“End” if the programming procedure is completely OK, after 30seconds the regulation starts automatically.
“Err” if the programming procedure has found an error and the parameter have not been transferred. In this case turn off and then on
the instrument supply to repeat the operation or remove the hot key, with power supply off, to restart the regulation.
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10.2 UPLOAD: HOW
TO PROGRAM A
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“HOT KEY”
WITH THE PARAMETERS OF THE
INSTRUMENT
1. Turn on the power supply.
2. Insert the hot key.
3. Enter the function Menu.
4. Select the UPL function (on the bottom display).
5. Push SET key and immediately the instrument starts transfer the parameters into the Hot key.
During the upload the regulation is locked and the top display shows the “UPL” blinking label. At the end of the UPLOAD will appear:
“End” if the programming procedure is completely OK, after 30seconds the regulation starts automatically.
“Err” if the programming procedure has found an error and the parameter have not been transferred. Repeat the procedure.
To exit the UPL function push the MENU key or wait the time-out (15 sec).
11 PROGRAMMING USING THE KEYBOARD
Through the instrument keyboard it is possible to enter the programming. In all the three accessible levels the user can show and modify
both value and visibility of the parameters. To ensure an easy navigation through the different levels the common parameters have been
named and grouped under a family name.
The three levels of programming:
•
Pr1 User level
•
Pr2 Maintenance level
•
Pr3 OEM level
11.1 PASSWORD DEFAULT VALUES
•
Password level Pr1 = 1
•
Password level Pr2 = 2
•
Password level Pr3 = 3
Under the function Menu (to reset the Alarm Log or the Compressor Overload) the password is 0 (see parameter AL46)
Each password can be changed, the range is from 0 to 999.
Each parameter has two level: visibility and modify. Therefore it can be configured as follow:
•
The parameter can be showed and changed.
•
The parameter can be showed but not changed.
11.2 ENTER THE PR1 - PR2 - PR3 PROGRAMMING LEVELS
Pr1 LEVEL:
Push SET + DOWN together for 3 seconds, the top display shows the PAS label and the bottom display shows the Pr1 label. The leds
cir1/cir2 are blinking (up and down leds) to inform that you now are in PR1 programming level.
Pr2 LEVEL:
From the Pr1 level push the UP key for 2 seconds and the bottom display will show Pr2. The top display still shows PAS.
Pr3 LEVEL:
From the Pr2 level push the UP key for 2 seconds and the bottom display will show Pr3. The top display still shows PAS.
After selecting the level push the SET key and the top display will show the 0 blinking value where to insert the password .
Set the password level using the UP and DOWN keys then confirm with SET key.
Dependening on the password value there will be the different level access, if the password is wrong the instrument shows the
password value again.
ATTENTION:
For all the programming levels Pr1,2,3: the CF family (or configuration parameters) can not be changed if the unit is running in
chiller, heat pump. The user can check the leds #1 and #2 and if they are blinking it is not possible to change this parameters
but it is necessary to set the unit in stand-by and then enter the programming again.
During the defrost the dF family can’t be programmed.
11.3 HOW TO CHANGE A PARAMETER VALUE
Enter the programming
1. Push the SET + DOWN keys together for 3 seconds;
2. Select the parameter label with up and down keys;
3. Push SET to enter the parameter value;
4. Change the value with UP or DOWN keys;
5. Push “SET” to confirm, after some seconds the display shows the next parameter;
6. Exit: Push SET + UP together when a parameter label is displayed or wait 15seconds without pushing a key.
NOTE: a new parameter value is confirmed also after the 15 seconds of timeout is expired (without pushing SET key to confirm).
11.4 CHANGE THE PASSWORD VALUE
Pr1 LEVEL
Remember that it is necessary to know the old password value.
1) Enter the Pr1 level
2) Select a parameter family.
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Inside the family select the “Pr1 - 1”, Pr1 on the bottom display, the current password value 1 on the top display. Push the
SET key to change the value that now is blinking.
Use the UP or DOWN key to insert the NEW PASSWORD value, then push SET to confirm the new value.
The top display blinks for some seconds and then shows the next parameter.
Exit the programming pushing SET + UP together or wait the timeout.
Pr2 LEVEL
Remember that it is necessary to know the old password value.
1. Enter the Pr2 level
2. Select a parameter family.
3. Inside the family select the “Pr2 - 2”, Pr2 on the bottom display, the current password value 2 on the top display. Push the
SET key to change the value that now is blinking.
4. Use the UP or DOWN key to insert the NEW PASSWORD value, then push SET to confirm the new value.
5. The top display blinks for some seconds and then shows the next parameter
6. Exit the programming pushing SET + UP together or wait the timeout.
Inside the Pr2 level it is possible to change also the Pr1 password.
Pr3 LEVEL
Remember that it is necessary to know the old password value.
1. Enter the Pr3 level
2. Select a parameter family.
3. Inside the family select the “Pr3 - 3”, Pr3 on the bottom display, the current password value “3” on the top display. Push the
SET key to change the value that now is blinking.
4. Use the UP or DOWN key to insert the NEW PASSWORD value, then push SET to confirm the new value.
5. The top display blinks for some seconds and then shows the next parameter
6. Exit the programming pushing SET + UP together or wait the timeout.
Inside the Pr3 level it is possible to change also the Pr1 and Pr2 passwords.
11.5 ENTER THE PROGRAMMING LEVEL PR1
Enter the Pr1 “User level ”:
1. Push the SET + DOWN keys together for 3 seconds. The top display shows PAS while the bottom display shows Pr1 labels.
2. Push SET key and the top display shows a blinking 0, with UP or DOWN insert the Pr1 password. Push SET and, if the value
is correct, top display will show the first family of parameters “ALL”. Otherwise set the password again.
3. Select a parameter family with DOWN or UP keys.
4. Push SET to enter, the bottom display shows the first available parameter label while the top display shows its value.
The user can shows and modify all the parameters belonging to this family.
Parameter status, leds and bottom display in Pr1
•
•
•
•
If the selected parameter can not be changed the leds 1 and 2 are blinking.
In Pr1 level the user can not see and change any parameter of Pr2 and Pr3.
The MENU key allows to exit from a family to reselect another without exit the Pr1 level.
To exit completely the programming push SET + UP.
11.6 ENTER THE PROGRAMMING LEVEL PR2
Enter the Pr2 “maintenance level ”:
1. Push the SET + DOWN keys together for 3 seconds. The top display shows PAS while the bottom display shows Pr1 labels.
2. Push UP key for 2 seconds and the top display will show Pr2.
3. Push SET key and the top display shows a blinking 0, with UP or DOWN insert the Pr2 password. Push SET and, if the value
is correct, top display will show the first family of parameters “ALL”. Otherwise set the password again.
4. Select a parameter family with DOWN or UP keys.
5. Push SET to enter, the bottom display shows the first available parameter label while the top display shows its value.
The user can shows and modify all the paramters belonging to this family.
Parameter status, leds and bottom display in Pr2
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Leds 1 / 2 are blinking: the parameter can not be changed.
All the leds are off:
the parameter ca not be seen in Pr1 level.
Led 3 is on:
the parameter can be seen in Pr1 level.
Leds 1 / 2 are blinking and led 3 is on: the parameter can be showed and changed in Pr2, showed but not changed in Pr1.
Leds 1 / 2 / 3 are blinking: the parameter can be showed and changed in Pr2 and in Pr21.
In Pr2 level the user can not see and change any parameter of Pr3 level.
The MENU key allows to exit from a family to reselect another without exit the Pr2 level.
The MENU key allows to pass to Pr1 starting from a family label.
To exit completely the programming push SET + UP.
11.7 ENTER THE PROGRAMMING LEVEL PR3
Enter the Pr3 “OEM level ”:
1. Push the SET + DOWN keys together for 3 seconds. The top display shows PAS while the bottom display shows Pr1 labels.
2. Push UP key for 2 seconds and the top display will show Pr2.
1. Push UP key again for 2 seconds and the top display will show Pr3
3. Push SET key and the top display shows a blinking 0, with UP or DOWN insert the Pr3 password. Push SET and, if the value
is correct, top display will show the first family of parameters “ALL”. Otherwise set the password again.
4. Select a parameter family with DOWN or UP keys.
5. Push SET to enter, the bottom display shows the first available parameter label while the top display shows its value.
The user can shows and modify all the paramters belonging to this family.
Parameter status, leds and bottom display in Pr3
•
•
•
•
•
•
•
•
•
Leds 1 / 2 are blinking: the parameter can not be changed.
All the leds are off:
the parameter is available only in Pr3.
Led 4 on:
the parameter can be changed also in Pr2.
Led 4 blinking:
the parameter is visible also in Pr2 .
Leds 3 / 4 on:
the parameter is available in Pr2 and in Pr1.
Leds 3 / 4 blinking:
the parameter is visible in Pr1 and in Pr2.
The MENU key allows to exit from a family to reselect another without exit the Pr2 level.
The MENU key allows to pass to Pr1 starting from a family label.
To exit completely the programming push SET + UP.
11.8 MOVE A PARAMETER LEVEL FROM PR2 TO PR1
Enter Pr2 programming level
Select the parameter and if the led # 3 is off: the parameter is available only in Pr2.
To show the parameter also in Pr1:
1. Keep pushed SET key;
2. Push 1 time the DOWN key and the led 3 should be on, the parameter is now available in Pr1.
To hide the parameter in Pr1:
1. Keep pushed SET key;
2. Push 1 time the DOWN key and the led 3 should be off, the parameter is now removed from Pr1.
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11.9 MOVE A PARAMETER FROM PR3 TO PR2 TO PR1
Enter Pr3 programming level, here the parameter are all visible:
Select the parameter, if all the leds are off the parameter is available only in Pr3.
To show the parameter also in Pr2 and Pr1:
1. Keep pushed SET key;
2. Push 1 time the DOWN key and the leds 3 and 4 should be on, the parameter is now available also in Pr2 / Pr1.
To show the parameter only in Pr2:
1. Keep pushed SET key;
2. Push 1 time the DOWN key and the leds 3 is off, the parameter is now available also in Pr2.
To show the parameter only in Pr3:
1. Keep pushed SET key
2. Push 1 time the DOWN key and the leds 3 and 4 are off, the parameter is now available only in Pr3.
11.10 VISIBILITY AND PARAMETER VALUE LOCKED
To set the only visibility and lock the parameter value it is necessary enter Pr3 programming level.
Pr1 PARAMETER VISIBILITY
Enter the Pr3 level
1. Select the parameter;
2. Keep pushed the SET key;
3. Push 1 time the MENU key and the led 3 change from on to blinking: the parameter is visible in Pr1 but can’t be changed.
Pr2 PARAMETER VISIBILITY
Enter the Pr3 level
1. Select the parameter;
2. Keep pushed the SET key;
3. Push 1 time the MENU key and the led 4 change from on to blinking the parameter is visible in Pr2 but can’t be changed.
Leds 3 / 4 blinking: the parameter is visible in Pr1 and in Pr2 but in those levels now they can’t be changed.
TO SET THE ORIGINAL TAG FOR THE PARAMETER Pr1 / Pr2
1. Keep pushed the SET key;
2. Push one time the MENU key, the leds 3 / 4 turn on, the parameter can be seen and modified in Pr1 and Pr2.
11.11 PROGRAMMING: DIGITAL INPUT AND OUTPUT POLARITY
The parameters that allow to configure different options such as:
1. Digital inputs
2. Digital outputs (relay)
3. Proportional output configured as ON/OFF
4. Analogue input configured as digital input
have a different parameter description that allows to configure the operating mode and the corresponding polarity.
Example of programming:
The bottom display shows the parameter label (CF36) Digital input ID1 configuration;
Note that the top display shows “c” or “o” before the configuration number.
The selection 7 for the digital input ID1 (CF36) means that it is the “high pressure switch of circuit 1”.
The label “o” means that the digital input is active for open contact.
Otherwise if the selection is 7 for the digital input ID1 (CF36) = “high pressure switch of circuit 1”.
The label “c” means that the digital input is active for closed contact.
11.12 CHANGE THE POLARITY OF THE DIGITAL INPUTS-OUTPUTS
Enter the programming:
1. Select a parameter with digital input/output value, The top display shows the label o before the configuration number while the
bottom display shows the parameter label.
2. Push SET key: the o label and the configuration number are blinking, use the UP or DOWN key and select the proper polarity
( o / c ) of the function, then push SET key to confirm it all.
3. The top display blinks for some seconds and then it will shows the next parameter.
4. To exit the programming push SET + UP together or wait the timeout (15seconds).
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12 SELECTION AND START OF THE RUNNING MODE
12.1 SELECT THE CHILLER
OR THE HEAT PUMP MODE
The CF79 parameter allows to select and enable the running mode:
Par. CF79 = 0: Through keyboard, the user can start and stop the unit using the keys of the front panel.
Par. CF79 = 1: Through digital input programmed to start/stop the unit from remote control.
•
This selection is enabled if there is one digital input configured as start/stop from remote (remote chiller / heat pump). I non of
the digital input are configure the unit remains in stand–by.
•
The “open” status of the input forces the chiller running mode.
•
The “closed” status of the input forces the heat pump running mode.
•
The keyboard selection is disabled.
•
The key on the front panel can start/stop the unit only with the digital input selection
Par. CF79 =2: Automatic selection of the Chiller - Heat Pump through analogue input
The analogue input selection or change over function overrides the digital input C-HP function. If the external air temperature are within
the CF81 differential, the user can change the running mode from the keyboard.
If the unit is running with CF79 = 1 or CF79=2, and it is requested a running mode change, the controller turns off all the outputs, starts
a fixed delay time signalled by the chiller or heat pump blinking led. This blinking led indicates which running mode will be activated after
the compressor delay time protection.
12.2 CHANGE OVER
To change the running status the following condition must be respected otherwise the unit remains in stand - by:
1. CF02=1 (heat pump selected)
2. CF79=2 and a NTC probe configured as NTC external air temperature for dynamic setpoint/ boiler / change over
3. This probe is working properly.
Parameters involved with the change over function:
CF80 Change over Setpoint. If the analogue input control (from probe) function is enabled, it represents the limit temperature of the
probe value under which the unit runs the Heat Pump mode.
CF81 Change over Differential. If the analogue input control (from probe) function is enabled, it represents the limit differential
temperature of the probe value to restart in the Chiller mode.
For external air temperature within CF81 the user can manually change the status from keyboard.
GRAPH: AUTOMATIC CHANGE OVER
12.3 CHILLER – HEAT PUMP FUNCTIONING MODE
IT IS DEFINED BY THE PARAMETER CF78.
12.4 KEYBOARD SELECTION
CF78 = 0: pushing
key the unit starts in chiller, pushing
key the unit starts in heat pump
CF78 = 1: pushing
key the unit starts in heat pump, pushing
key the unit starts in chiller
12.5 ANALOG INPUT SELECTION
CF78 = 0 NTC, External air temperature probe > CF80+ CF81
the unit starts in heat pump.
the unit starts in chiller, NTC, External air temperature probe < CF80
CF78 = 1 NTC, External air temperature probe > CF80+ CF81
the unit starts in heat pump.
the unit starts in chiller, NTC, External air temperature probe < CF80
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13 UNIT START- STOP
The unit start sotp can be done from one of the following operations:
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From keyboards
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RTC Time table
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Digital input configured as remote ON/OFF
13.1 START – STOP AND STAND- BY FROM KEYBOARD
TURN THE UNIT ON IN CHILLER OR HEAT PUMP MODE FROM THE KEYBOARD
Push and release the
key allows to start in chiller mode if CF78 =0, in heat pump if CF78 =1. When the unit is running the
corresponding led is on.
INPORTANT: To change from chiller to heat pump and viceversa the unit must be set in stand-by before continuing.
key allows to start in heat pump mode if CF78 =0, in chiller if CF78 =1er. When the unit is running the
Push and release the
corresponding led is on.
INPORTANT: To change from chiller to heat pump and viceversa the unit must be set in stand-by before continuing.
STAND- BY ( OR UNIT OFF, NOT RUNNING)
The unit is considered in stand by when the leds
and
the Heat Pump are turned off. During the stand by the user can:
•
Show all the probe measurements
•
Detect and reset the alarm events.
13.2 UNIT START-
are both off. The stand-by is reached each time the Chiller or
STOP FROM DIGITAL INPUT
Turn on or off the unit from digital input
Set the digital input as remote ON/OFF, depending on the input polarity it can generate the unit off
•
The digital input overrides the keyboard command.
•
The keyboard can run only if the digital input is not active.
•
When the digital input is not active the instrument restore its status (had before the digital input activation).
14 DISPLAY LAYOUT
As default, In normal condition, the display shows the circuit 1 information.
The displayed circuit is indicated from the corresponding led Cir1 on (UP key), or Cir2 (circuit 2, DOWN key).
14.1 HOW TO SHOW THE MEASUREMENT LIST.
With the led Cir1 on, push UP or Down keys to display the labels of the information of the circuit 1.
With the led Cir2 on, push UP or Down keys to display the labels of the information of the circuit 2.
Each measurement is defined by a label that indicates which if it is a pressure a temperature or a time.
14.2 SHOW THE CIRCUIT 1 OR 2
To swap between the information of the two circuits use the UP and DOWN key to select a label then push SET, check the led.
Example in fig.1
Led cir1 is on: the top display shows the value of the output evaporator temperature ( 7.8°C) of the circuit 1,
The bottom display shows Out 1. Push SET key to swap to the circuit 2. Fig2
Led cir2 is on: the top display shows the value of the output evaporator temperature ( 7.9°C) of the circuit 2, the bottom display shows
Out 2.
Fig.1
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Fig.2
15 CUSTOM DISPLAY
The dP family of parameters allows to set a custom display read-out. The user can change the default read-out (both
for instrument and remote terminals) of the measurements depending on the application.
Top Display
Bottom display
15.1 DEFAULT READ - OUT OF THE TOP DISPLAY
To set the default value displayed on the top display:
1. Set the parameter dP03 = 0, it means configurable;
2. Select the dP01 parameter into the range 0..14 descripted here below:
PARAMETER
VALUE
dP01=0
DESCRIPTION
No display read out
CORRESPONDING
LABEL
No label
dP01=1
NTC temperature probe of the evaporator water inlet
Ein
dP01=2
NTC temperature probe of the evaporator water outlet 1 and 2
dP01=3
NTC temperature probe of the uscita common evaporator water outlet
dP01=4
NTC temperature probe of the condenser water inlet
dP01=5
NTC temperature probe of the common condenser water inlet
dP01=6
NTC temperature probe of the condenser water outlet
dP01=7
NTC temperature probe of the common condenser water outlet
dP01=8
NTC temperature probe of the dynamic external air setpoint
dP01=9
NTC temperature probe of the free cooling water inlet
FCIn
dP01=10
NTC temperature probe of the free cooling external air value
FCEt
dP01=11
NTC temperature probe of the remote terminal 1
trt1
dP01=12
NTC temperature probe of the remote terminal 2
trt2
Out1 circuit 1
Out2 circuit 2
Eout
CIn1 circuit 1
CIn2 circuit 2
Cin
Cou1 circuit 1
Cou2 circuit 2
Cout
Et
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dP01=13
NTC temperature probe of the combined defrost
dEF1 circuit 1
dEF2 circuit 2
dP01=14
NTC temperature probe of the condenser
Cdt1 circuit 1
Cdt2 circuit 2
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15.2 DEFAULT READ - OUT OF THE BOTTOM DISPLAY
To set the default value displayed on the bottom display:
1. Set the parameter dP03 = 0, it means configurable;
2. Select the dP02 parameter into the range 0..17 descripted here below:
PARAMETER
VALUE
dP02=0
DESCRIPTION
No display read out
CORRESPONDING
LABEL
No label
dP02=1
NTC temperature probe of the evaporator water inlet
Ein
dP02=2
NTC temperature probe of the evaporator water outlet 1 and 2
Out1 circuit 1
Out2 circuit 2
dP02=3
NTC temperature probe of the common evaporator water outlet
Eout
dP02=4
NTC temperature probe of the condenser water inlet
dP02=5
NTC temperature probe of the common condenser water inlet
dP02=6
NTC temperature probe of the condenser water outlet
dP01=7
NTC temperature probe of the common condenser water outlet
dP02=8
NTC temperature probe of the dynamic external air setpoint
dP02=9
NTC temperature probe of the free cooling water inlet
FCIn
dP02=10
NTC temperature probe of the free cooling external air value
FCEt
dP02=11
NTC temperature probe of the remote terminal 1
trt1
dP02=12
NTC temperature probe of the remote terminal 2
trt2
dP02=13
NTC temperature probe of the combined defrost
dEF1 circuit 1
dEF2 circuit 2
dP02=14
NTC temperature probe of the condenser
Cdt1 circuit 1
Cdt2 circuit 2
dP02=15
Pressure probe of the condenser 4÷20mA - 0.5V
Cdt1 circuit 1
Cdt2 circuit 2
dP02=16
Pressure probe of the evaporator 4÷20mA - 0.5V
LP1 circuit 1
LP2 circuit 2
dP02=17
Clock
CIn1 circuit 1
CIn2 circuit 2
Cin
Cou1 circuit 1
Cou2 circuit 2
Cout
Et
TOP DISPLAY: CUSTOM EXAMPLE
Parameter dP01=01. The default read out for the circuit 1 and the circuit 2 is the NTC probe value of the evaporator water inlet.
Parameter dP01=02. The default read out for the circuit 1 is the evaporator outlet 1 temperature, while for the circuit 2 is the evaporator
2 outlet temperature.
BOTTOM DISPLAY: CUSTOM EXAMPLE
Parameter dP02=03. The default read out for the circuit 1 and the circuit 2 is the NTC probe value of the evaporator water outlet.
Parameter dP02=14. The default read out for the circuit 1 is the condenser 1 temperature, while for the circuit 2 is the condenser 2
temperature.
15.3 FORCED READ - OUT OF THE TOP AND BOTTOM DISPLAY
To force the display read-out:
1. Set the dP03 parameter not equal to 0
2. Select the value range 1..3
These configurations allow to show together two temperatures or two pressures of the same circuit in order to have an easier reading of
the measurements:
Par. dP03 = 1
Top display: for both the circuits 1,2:
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Evaporator water inlet, with the Ein label.
Bottom display: circuit 1:
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Evaporator 1 water outlet, with the label OuT1
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Bottom display: circuit 2:
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Evaporator 2 water outlet, with the label OuT2.
Par. dP03 = 2
Top display of the circuit 1:
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Condenser 1 water inlet temperature with the label CIn1
Bottom display of the circuit 1
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Condenser 1water outlet with the label COu1.
Top display of the circuit 2:
Condenser 2 water inlet temperature with the label Cin2
Bottom display of the circuit 2
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Condenser 2water outlet with the label Cou2.
Par. dP03 = 3
Top display of the circuit 1:
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Condenser probe temperature Cdt1 / pressure CdP1
Bottom display of the circuit 1
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Evaporator pressure probe LP1
Top display of the circuit 2:
Condenser probe temperature Cdt2 / pressure CdP2
Bottom display of the circuit 2
Evaporator pressure probe LP2
15.4 DEFAULT DISPLAY READ - OUT OF THE REMOTE PANELS VI620S AND VI820S
If the parameter dP04 = 0 the upper display of the remote panels #1 and #2 depends on the parameter values dP01 – dP02 – dP03; to
show the temperature detected by the internal probe of the remote panel accessing the function menu under the function trEm.
If the parameter dP04 = 1 the upper display of the remote panels #1 and #2 show their internal NTC sensor (ambient temperature); to
show the same temperature it is possible to eccess the function menu under the function trEm.
15.5 DEFAULT DISPLAY READ - OUT OF THE REMOTE PANELS VI620S AND VI820S
If the parameter dP04 = 0 the upper display of the remote panels #1 and #2 depends on the parameter values dP01 – dP02 – dP03; to
show the temperature detected by the internal probe of the remote panel accessing the function menu under the function trEm.
If the parameter dP04 = 1 the upper display of the remote panels #1 and #2 show their internal NTC sensor (ambient temperature); to
show the same temperature it is possible to eccess the function menu under the function trEm.
16 DISPLAY INFORMATION
16.1 SHOW THE SET POINT VALUE
Push and release the SET key, the leds of the circuits are off and the set value is displayed.
In stand-by the bottom display shows SetC (set chiller), by pushing SET again the next label is SetH (set heat pump ).
If the unit is running the only set displayed is related to the running mode.
16.2 MODIFY THE SET POINT
1)
2)
3)
Push SET key for at least 3 seconds: the leds of the circuits are off and the set value is blinking.
Use the UP or DOWN key to modify the setpoint.
Push SET to confirm or wait the timeout (15seconds).
16.3 SHOW THE ACTIVE SETPOINT DURING ENERGY SAVING OR DYNAMIC SETPOINT
If the unit is running in chiller or HP, the Energy Saving or the Dinamic Setpoint activity is signalled by the blinking led of the SET button.
Chiller mode: push SET one time, the bottom display shows the SEtC (set chiller) while the top display shows the set value. Only if the
Energy saving or the Dynamic Setpoint are active, pushing another time the SET key, the bottom display shows “SEtr” (real setpoint),
and the top display shows the setpoint that the unit is really using for the thermoregulation.
Chiller mode: push SET one time, the bottom display shows the SEtH (set Heat pump) while the top display shows the set value. Only
if the Energy saving or the Dynamic Setpoint are active, pushing another time the SET key, the bottom display shows “SEtr” (real
setpoint), and the top diplay shows the setpoint that the unit is really using for the thermoregulation.
ATTENTION
The SEtr label appears only if the Energy saving or the Dynamic Setpoint are active.
To modify the working setpoint it is necessary the setpoint values is displayed on both the display (temperature / temperature or
temperature / pressure o pressure/ pressure) without any identification label, otherwise the SET key swaps to the circuit information.
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16.4 DISPLAY IN REMOTE OFF
From digital input configured as remote ON/OFF: the active input sets the unit in OFF (even when the unit is a motocondensing unit).
The top display shows “OFF ”, the led of the decimal point is blinking.
16.5 DISPLAY IN MOTOCONDENSING CONFIGURATION
The top display shows “ON” for active input and “OFF” for not active input. If the unit is running in Chiller the top display shows OnC
otherwise OnH for heat pump.
The configuration for motocondensing, as for chiller or HP, allows to show through the top and the bottom display all the detected input
measurements and alarms.
17 FUNCTION MENU “ M” KEY
The function Menu is composed of the following items:
1)
2)
3)
4)
5)
6)
7)
8)
9)
10)
11)
12)
Show and reset the alarms ALrM
Compressor overload alarm reset COtr
Show and reset the alarm log ALOG
Upload the parameter into the Hot Key UPL
Enable – disable one or the two circuits CrEn
Enable – disable one of the compressors COEn
Display the compressor discharge temperature COdt
Show and reset the number of compressor running hour Hour
Show and reset the number of compressor starts-up COSn
Show the condensing fan speed percentage of the proportional output Cond
Show the percentage of the proportional output 0 ÷ 10 Vdc Pout
Time counting to next defrost cycle, under heat pump mode, dF
13) Show the probe temperatures that enabled to control the auxiliary output uS
14) Show the probe the temperature of the remote panels trEM
MENU FUNCTION ACCESS:
Push and release the M key.
MENU FUNCTION ACCESS:
Push and release the M key or wait the 15seconds timeout limit.
With the UP or DOWN keys move inside the label list.
17.1 ALARM LIST: SHOW AND RESET
ALrM FUNCTION
Enter the function MENU pushing M key one time
1) Use the UP or DOWN to select the AlrM label
2) Push SET key (Nothing happens if there are no active alarm events)
3) Bottom display: alarm label code. Top display: label rSt to reset or NO if it is not possible.
4) Use the UP or DOWN to scroll the alarm list.
5) Pushing SET when the rSt label is displayed the corresponding alarm will be reset, then the display shows next alarm in the
list, pushing SET again the alarm is reset and the display shows next alarm etc. Nothing happens by pushing SET when the
label NO is displayed, in this case push UP or DOWN to move to another alarm label.
6) To exit the ALrM reset function push MENU one time or wait the timeout.
17.2 COMPRESSOR OVERLOAD ALARM RESET
COtr function resets the compressor overload alarm event.
Within the COtr function all the active compressor overload alarms are displayed in a list.
Labels involved in COtr: CO1r = compressor 1 overload reset … CO6r = compressor 6 overload reset. Labels CO1r – CO2r – CO3r
– CO4r – CO5r - CO6r are available if the digital inputs have been previously configured.
ATTENTION
In the COtr function the alarm is displayed only after the number of events per hour have reched the Par. AL20 value,only after that
number of events per hour the alarm becomes MANUAL.
MANUAL ALARM RESET PROCEDURE
Enter Menu function
1. Use UP or DOWN key and select the COtr on the bottom display.
2. Push SET one time, if there are active alarms the bottom display shows the alarm label eg. CO1r (for compressor 1) while the
top display shows the label rSt to reset the alarm or NO if the alarm can not be reset. Use the UP or DOWN keys to scroll all
the alrm list.
3. Nothing happens by pushing SET when the label NO is displayed.
4. Pushing SET when the rSt label is displayed the corresponding alarm will be reset after the password: bottom display = ArSt
while the top display = PAS.
5. Push SET and the top display blinks 0 while the bottom shows PAS. Insert the password using UP or DOWN key (see AL
parameter family). If the password is OK the ArSt blinks for per 3seconds, if the password value is not correct the top display
blinks 0 while the bottom shows PAS. If within 5 seconds no value is inserted the display label come back to CO1r function.
6. To exit the COtr function push MENU or wait the timeout.
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Repeat operation 1 – 5 to reset the other alarms.
17.3 COMPRESSOR OVERLOAD PASSWORD.
The default value is 0 to change this value enter Pr3 level under the AL parameter family (Par. AL43)
17.4 ALARM LOG LIST
ALOG FUNCTION TO SEE THE ALARM LOG
The function and the alarm codes are visible only if there are alarm events. If many events are active at the same time the list displayed
by increasing order.
Enter the function Menu
1. Select ALOG
2. Push SET one time. Nothing happens if there are no active alarm events.
3. The bottom display shows the alarm label, the top display shows the a number in the range 00 to 99.
4. Use the UP or DOWN keys to scroll the list.
5. To exit the ALOG function push MENU or wait the timeout.
17.5 ERASE THE ALARM LOG LIST
ALOG FUNCTION TO ERASE THE LOG LIST
1.
2.
3.
4.
5.
6.
7.
8.
9.
Enter the function Menu.
Use the UP or DOWN keys to select ALOG on the bottom display.
Push on e time the SET key.
Within the ALOG function select with UP or DOWN keys, the ArSt label on the bottom display while the top display shows
PAS.
Push SET: the bottom display shows PAS and the top display a blinking 0.
Insert the password (See parameter family AL)
If the password is OK the label ArST blinks for 5 seconds then the display returns to normal condition read-out (probes).
If the password is not correct the display shows PAS again. in any case is possible to scroll the list with UP or DOWN
To exit push the M key one time or wait the timeout.
17.6 PASSWORD VALUE OF THE ALARM LIST
The default value is 0 to change this value enter Pr3 level under the AL parameter family.
THE ALARM LIST CONTAINS 100 EVENTS IN A FIFO STRUCTURE. WHEN THE MEMORY IS FULL ANY NEW ALARM WILL
ERASE THE OLDEST.
17.7 DISABLE – ENABLE A SINGLE CIRCUIT
Through the instruments keyboard is possible to completely disable a single circuit for maintenance or to use just a cooling part of of the
unit.
CrEn FUNCTION enables – disables a circuit from keyboard.
Label involved with CrEn function: Cr1E = circuit 1, Cr2E = circuit 2
DISABLE A CIRCUIT
Enter the function Menu
1. Use UP or DOWN keys to select CrEn on the bottom display
2. Push SET key: the bottom display = Cr1E, top display = En.
3. Select the circuit 1 or 2 with UP or DOWN (Cr1E or Cr2E).
4. Push SET key for 3 seconds when one of the two Cr1E, Cr2E label are displayed. The top display shows the En blinking
label, use the UP or DOWN to change in diS (Disabled) or En (Enabled). then push SET key to confirm the new selection.
The display shows next circuit status.
5. To exit the CrEn function push MENU key or wait the timeout.
17.8 READ-OUT OF A CIRCUIT NOT ENABLED
If one circuit is disabled the bottom display shows diS alternated with the label name of the measurement selected.
Circuit 1 = diS the bottom display shows b1dS = circuit 1 disabled.
Circuit 2 = diS the bottom display shows b2dS = circuit 2 disabled.
nd
The b2dS label appears only if the 2 circuit is configured,
17.9 ENABLE OR DISABLE A SINGLE COMPRESSOR
Through the instruments keyboard is possible to disable a single compressor for maintenance or to lock it when malfunctioning .
COEn FUNCTION compressors running status.
Label involved in COEn function: CO1E = Compressor 1 status… CO6E = Compressor 6 status
The COEn function uses only the compressors configured by the corresponding output parameters.
Enter the function Menu
1. Use the UP or DOWN keys to select COEn.
2. Push SET key: bottom display = CO1E, top display = En
3. Select the compressor with UP or DOWN: CO2E - CO3E - CO4E - CO5E - CO6E if available.
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Push SET for 3 seconds when the label corresponds to the compressor to disable: CO1E - CO2E - CO3E - CO4E - CO5E CO6E. The top display shows the blinking En label, use the UP or DOWN key and change to diS (Compressor disabled) or
En (compressor enabled) then push SET to confirm, the display shows next item.
To exit the COEn function push MENU key or wait the timeout.
17.10 READ-OUT OF A COMPRESSOR NOT ENABLED
During the normal running condition a disabled compressor is displayed with a blinking label alternated with the measurement value of
the display.
If the compressor is disabled these the corresponding labels: C1dS = compressor 1 disabled…C6dS = compressor 6 disabled
The label C1dS…C6dS are available only if the corresponding compressor is configured.
17.11 READ-OUT OF THE COMPRESSOR DISCHARGE TEMPERATURE PROBE
The menu function allows to read-out the compressor temperature probes.
COdt FUNCTION shows the discharge temperatures
Label involved in Codt function: CO1t Compressor 1 discharge temperature… CO6t Compressor 6 discharge temperature
1. Use the UP or DOWN keys to select COdt
2. Push SET key: bottom display = CO1t, top display = temperature value of that probe.
3. Use the UP or DOWN kys to scroll the list: CO1t or CO2t or CO3t or CO4t or CO5t or CO6t
4. To exit the COEn function push MENU key or wait the timeout
ATTENZIONE
The labels Codt are available only if the corresponding compressor probe is configured.
The display resolution is 0.1°C until the read-out is 99.9, over 100°C it is 1°C.
17.12 READ-OUT OF THE RUNNING HOURS
This menu allows to shows all the time running hours of the compressors, supply fan and pumps.
Hour FUNCTION to show the controlled load consumption
Label involved in the Hour function:
CO1H Compressor 1 running hours .. CO6H Compressor 6 running hours.
EP1H Evaporator water pump or Supply fan running hours (air/air)
EP2H Support evaporator water pump running hours
CP1H Condenser water pump running hours
CP2H Support condenser water pump running hours
The labels are displayed only if the corresponding output is present and configured.
The running hours is displayed on the top display, the resolution is x 10 hours (eg 2 means 20 hours, 20 means 200hours)
Enter the function Menu
1.
Use the UP or DOWN keys to select Hour
2.
3.
4.
Push SET key: bottom display = above labels, top display = hours x10. The time
Use the UP or DOWN keys to scroll the list.
To exit the Hour function push MENU key or wait the timeout
is on.
17.13 RESET THE RUNNING HOUR
Enter the function Menu
1. Within the Hour function select, with UP or DOWN, the interested label: CO1H, CO2H, CO3H, CO4H, CO6H, EP1H, EP2H,
CP1H, CP2H.
2. Push the SET keys for 3seconds: the top display shows the running hours blinking value, then it shows 0 to confirm the reset.
The next load label is automatically loaded.
To exit the Hour function push MENU key or wait the timeout
17.14 READ-OUT OF THE COMPRESSOR STARTS-UP
For each compressor is possible to show the number of starts-up.
COSn FUNCTION: number of starts-up of the compressor
Label involved in COSn function: C1S number of compressor 1 starts-up .. C6S number of compressor 6 starts-up
The labels are displayed only if the corresponding output is present and configured
The number of starts-up is displayed on the top display, the resolution is x 10 (eg 2 means 20 starts, 20 means 200starts)
Enter the function Menu
1.
2.
3.
4.
Use the UP or DOWN keys to select COSn.
Push SET one time: the label of the first load C1S is showed on the top display, the bottom display shows the number x10.
With UP or DOWN scroll the compressor list.
To exit the Hour function push MENU key or wait the timeout
17.15 RESET THE STARTS-UP NUMBER
Enter the function Menu
1. Within the Hour function select, with UP or DOWN, the interested label: CS1, CS2, CS3, CS4, CS6.
2. Push the SET keys for 3seconds: the top display shows the running hours blinking value, then it shows 0 to confirm the reset.
The next load label is automatically loaded.
3. To exit the Hour function push MENU key or wait the timeout.
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PERCENTAGE OF THE CONDENSER FAN
CONTROL
The proportional outputs of the two circuits, that control the fan speed, can be showed in the menu function.
Cond FUNCTION selects the proportional output 1 and 2.
Label involved in Cond function.
Cnd1 Proportional output status of the condenser fan of the circuit 1.
Cnd2 Proportional output status of the condenser fan of the circuit 2.
TO SEE THE OUTPUT PERCENTAGE:
Enter the function menu
1. Use the UP or DOWN keys to select Cond.
2. Push SET key: the bottom display shows Cnd1, the top display shows the output percentage.
3. Use the UP or DOWN keys to select Cnd1 or Cnd2, the top display always shows the value, between 0% and 100%, of the
proportional output of the selected circuit.
4. To exit the Hour function push MENU key or wait the timeout.
17.17 READ-OUT OF THE FOUR PROPORTIONAL OUTPUT
The four proportional outputs, 4..20ma or 0-10V, can be showed in the menu function.
Pout FUNCTION selects the proportional outputs.
Label involved in Cond function:
Pou1 Proportional output for dumper control or to drive the external relay 1
Pou2 Proportional output for dumper control or to drive the external relay 2
Pou3 Proportional output for dumper control or to drive the external relay 3
Pou4 Proportional output for dumper control or to drive the external relay 4
The labels are displayed only if the corresponding output is present and configured.
TO SEE THE FOUR OUTPUT PERCENTAGE:
Enter the function menu
1. Use the UP or DOWN keys to select Pout.
2. Push SET key: the bottom display shows Pou1, the top display shows the output percentage.
3. Use the UP or DOWN keys to select Pou1, Pou2, Pou3 or Pou4 the top display always shows the value, between 0% and
100%, of the proportional output of the selected circuit.
4. To exit the Hour function push MENU key or wait the timeout.
ATTENTION:
If the proportional output Pou1 - Pou2 - Pou3 - Pou4 are configured to drive an external relay the display will show 0=relay off
and 100=relay on.
17.18 READ-OUT OF THE TIME COUNTING TO THE NEXT DEFROST
The 2 times delay to next defrosts of the two circuits can be showed in the menu function.
dF FUNCTION time to next defrost.
Label involved in dF function:
dF1 delay time to next defrost of the circuit 1
dF2 delay time to next defrost of the circuit 2
The labels apperas on if the heat pump configuration is enabled.
Enter the function menu :
1. Use the UP or DOWN keys to select dF
2. Push SET key: the dF1 label is showed on the top display, the bottom display shows the time delay to next defrost in minutes
3.
4.
/ seconds. The
icon is on.
Use the UP or DOWN keys to select dF1 or dF2.
To exit the Hour function push MENU key or wait the timeout.
17.19 READ-OUT OF THE PROBES CONFIGURED TO CONTROL AN AUXILIARY OUTPUT RELAY
The probe values, configured to control the auxiliary relay output, can be showed in the menu function.
uS FUNCTION temperature/pressure value of the control probe for auxiliary output.
Label involved in uS function:
uSt1 auxiliary probe value of the circuit 1
uSt2 auxiliary probe value of the circuit 2
Enter the function menu
1. Use the UP or DOWN keys to select uS.
2. Push SET key: the label uSt1 (temperature probe ) or uSP1 (Pressure probe) is showed on bottom display, the top display
shows the the temperature or pressure value.
3. Use the UP or DOWN keys to select uSt1 auxiliary probe for circuit 1or uSt2 auxiliary probe for circuit 2.
4. To exit the Hour function push MENU key or wait the timeout.
17.20 HOW
TO DISPLAY THE TEMPAERATURE OF THE INTERNAL TEMPERAURE SENSOR OF
THE REMOTE TERMINALS 1 OR 2
Inside the funcion menu it is possible to see the ambient temperature detected by the NTC sensor
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FUNCTION trEM to show the temperature of the remote panels
Identification label trEM.
trE1 value of the NTC probe of the remote #1
trE2 value of the NTC probe of the remote #2
Select with UP or DOWN the trEM function
Push SET the trE1 or trE2 label is shown on the bottom display, the top display shows the probe value.
Use the UP or DOWN arrow to change beteween trE1 or trE2 read-out.
To exit to the normal display read-out push MENU or wait the time – out time.
ATTENTION:
THE trEm function and the labels trE1 or trE2 appear only if the CF74 = =2 or 3 (remote panel 1 configuration) or if the parameter CF75
= 2 or 3 (remote panel 2 configuration).
18 ENERGY SAVING
18.1 ENERGY SAVING FROM DIGITAL INPUT
The energy saving is activated when one of the digital input configured as energy saving is ACTIVE.
The energy saving activation is signalled by the SET key led on. When working in Chiller or HP the first pressure on SET key shows the
actual setpoint SetC (chiller) or SetH (HP) labels while the top display shows the set value.
If the energy saving is active the next pressure on the SET key shows the label “SEtr” (real setpoint), and the top display shows the
real set value active in that moment.
During the Energy Saving cycle the setpoint is incremented with these parameter values ES14 / ES16: SET + ES14 for Chiller mode
and SET + ES16 for HP mode.
The differential values, during the energy saving thermoregulation, are defined with parameter ES15 for chiller mode and ES17 and HP
mode.
18.2 ENERGY SAVING TIME TABLE WITH RTC
The Energy Saving function with a daily RTC time table is available only if the RTC circuit (optional) is on board.
This function allows to set three start and stop energy saving daily periods (ES1..ES2, ES3..ES4, ES5..ES6).
The energy saving activation is signalled by the SET key led on. When working in Chiller or HP the first pressure on SET key shows the
actual setpoint SetC (chiller) or SetH (HP) labels while the top display shows the set value.
If the energy saving is active the next pressure on the SET key shows the label “SEtr” (real setpoint), and the top display shows the
real set value active in that moment.
During the Energy Saving cycle the setpoint is incremented with these parameter values ES14 / ES16: SET + ES14 for Chiller mode
and SET + ES16 for HP mode.
The differential values, during the energy saving thermoregulation, are defined with parameter ES15 for chiller mode and ES17 and HP
mode.
The function can work if the following requirements are satisfied:
1. RTC circuit mounted.
2. Parameters ES01…ES06 are not equal to 0 and are not programmed with the same value.
18.3 RTC DAILY TIME TABLE PROGRAMMING
This function can be also used to turn ON or OFF the unit.
Enter parameter programming:
1. Select with UP or DOWN keys the ES parameter family.
2. Within the ES parameters select with UP or DOWN keys the parameters ES01…ES06 to determine the start and stop of the
energy saving daily periods.
Example
Set the energy saving start with ES01 and the energy saving stop time ES02 of the first period:
If ES01 = 8.0 ES02 = 10.0 the energy saving setpoint is active from 8 to 10.
If ES01 = 23.0 ES02 = 8.0 the energy saving setpoint is active from 23 (11pm) to 8 (8 am) in the morning of the next day.
If necessary repeat the operation for the others two time periods defined by ES03…ES04 and ES05…ES06.
18.4 ENERGY SAVING OR UNIT ON/OFF ACTIVATION WITH RTC PROGRAMMING
Enter the parameter programming:
1. Select with UP or DOWN keys the ES parameter family.
2. Within the ES parameters select with UP or DOWN keys the parameters ES07 (Monday)…ES13 (Sunday) to determine which
days to include.
Configuration table Energy saving or unit ON/OFF activation with rtc programming
Par. ES07 – ES13
0= RTC not enabled
st
1= 1 period enabled
nd
2= 2 period enabled
st
nd
3= 1 and 2 periods enabled
rd
4= 3 period enabled
st
rd
5= 1 and 3 periods enabled
nd
rd
6= 2 and 3 periods enabled
st
nd
rd
7= 1 , 2 and 3 periods enabled
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Energy saving or unit ON/OFF where: X with range 0..7 represents the energy saving
with RTC and X Y
where: Y with range 0..7 represents the unit on/off
Example of a daily programming:
Monday
Enater parameter programming
1. In the ES parameter family, select the parameter ES07, the top display shows 0 - 0
2. Push SET key: the top display shows 0 - 0 blinking, with UP or DOWN keys select the corresponding function (see next table)
:
3. Push SET to confirm.
4. Push SET + UP to exit the programming or wait the programming timeout.
MONDAY X = 0 - Y= 0: The energy saving and the unit on/off are both disabled:
MONDAY X = 0 - Y= 1 energy saving is disabled, and unit on/off will follow the first RTC period ES1..ES2.
st
nd
st
nd
rd
MONDAY X = 3 - Y= 7: energy saving enabled during the 1 and 2 RTC periods, unit on/off enabled during the 1 , 2 3 periods.
WEEKLY PROGRAMMING
Repeat the daily programming for the other days of the week using parameters ES08..ES13.
19 DYNAMIC SETPOINT
The dynamic setpoint allows to increase or decrease the setpoint with a proportional value determined by Sd01 (chiller) and Sd02 (HP)
that depends from the 4..20mA analogue input or from the external air temperature probe. This function allows to save energy or run the
unit when the external ambient is not within the normal operative conditions.
The dynamic setpoint activation is signalled by the SET key led on. When working in Chiller or HP the first pressure on SET key shows
the actual setpoint SetC (chiller) or SetH (HP) labels while the top display shows the set value.
If the energy saving is active the next pressure on the SET key shows the label “SEtr” (real setpoint), and the top display shows the
real set value active in that moment.
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The regulation is enabled if:
• In chiller mode the parameter Sd01 is not equal to 0.
• In heat pump mode the parameter Sd02 is not equal to 0.
• a 4÷20mA analogue input is configured as dynamic setpoint control or a NTC analogue input is configured as external air
temperature for dynamic setpoint control.
With UP or DOWN keys within the circuit measurement read-out is possible to show the external air temperature indicated by the Et
label.
19.1 DYNAMIC SETPOINT GRAPH
4÷20ma probe configured as dynamic setpoint analogue input:
NTC probe with positive differential:
NTC probe with negative differential:
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20 AUXILIARY RELAYS
The auxiliary relays can be configured to manage two independent, from heat pump or chiller mode, output controls.
Each output can be managed with a dedicated temperature or pressure probe input ( NTC probe, 4..20mA or 0..5V transducers) or with
the common available temperature or pressure configurable inputs.
The probe selection is made with parameters uS02 for the circuit 1 and uS06 for the circuit 2.
The function is enabled when the parameter uS01 <>0 for the circuit 1 and the parameter uS05<>0 for the circuit 2 and at least one
output is configured as auxiliary output.
Par. uS01 configuration auxiliary relay 1.
Par. uS05 configuration auxiliary relay 2
Value and function
0 = Not enabled
1 = Function enabled, direct action, also during stand-by or remote off.
2 = Function enabled, direct action, only with unit running.
3 = Function enabled, inverse action, also during stand-by or remote off
4 = Function enabled, inverse action, only with unit running.
20.1 AUXILIARY RELAY WITH DIRECT ACTION
When:
PBr < set : relay ON.
Pbr > set + differential: relay OFF.
Set < PBr < set + differential: previous status.
PBr = NTC probe or transducer selected by the parameters uS02 / uS06
20.2 AUXILIARY RELAY WITH INVERSE ACTION
When:
PBr > set : relay ON.
Pbr < set - differential: relay OFF.
Set – differential < PBr < set: previous status.
PBr = NTC probe or transducer selected by the parameters uS02 / uS06
If:
PBr > SET: relay ON
Pbr < SET– differential: Relay OFF
Set – differential < of PBr < SET: previous state
PBr = NTC probe or transducer selected with uS02 / uS06 parameters
21 COMPRESSOR THERMOREGULATION
21.1 THERMOREGULATION PARAMETER DESCRIPTION
Par. ST01 Chiller Setpoint
It allows to set the chiller working temperature within the range ST02..ST03.
Par. ST02 Minimum setpoint limit in chiller.
The user can not program a setpoint value lower than ST02, the range is –30 °C..ST01.
Par. ST03 Maximum setpoint limit in chiller.
The user can not program a setpoint value higher than ST02, the range is ST01..70°C.
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Par. ST04 Heat pump setpoint
It allows to set the Heat pump working temperature within the range ST05..ST06.
Par. ST05 Minimum setpoint limit in heat pump.
The user can not program a setpoint value lower than ST05, the range is –30 °C..ST04.
Par. ST06 Maximum setpoint limit in heat pump
The user can not program a setpoint value higher than ST06, the range is ST01..70°C.
Par. ST07 Regulation band width in chiller mode.
The configured resources are distributed inside the regulation band.
Example Unit configured with 2 circuits, 3 compressors per circuit and thermoregulation controlled by the evaporator inlet NTC probe.
Chiller setpoint: evaporator inlet water = 12°C, evaporator outlet water 7°C: when the evaporator inlet water is 12°C all the compressor
outputs are on while when the evaporator inlet water is 7 °C all the compressors are OFF.
Thermoregulation parameters: Par. ST01 = 7 °C / Par. ST07 = 5 °C
Functioning: the regulation band ST07= 5 °C is divided by the number of resources 6 compressors therefore the step for each resource
is 0.8°C, each 0.8°C if the temperature is increasing or decreasing one of the resource is turned on or off.
Par. ST08 Regulation band in heat pump mode
The configured resources are distributed inside the regulation band.
Example Unit configured with 2 circuits, 3 compressors per circuit and thermoregulation controlled by the evaporator outlet NTC probe.
Chiller setpoint: evaporator inlet water = 40°C, evaporator outlet water 45°C: when the evaporator outlet water is 40°C all the
compressor outputs are on while when the evaporator outlet water is 45 °C all the compressors are OFF.
Thermoregulation parameters: Par. ST04 = 40 °C / Par. ST08 = 5 °C
Functioning: the regulation band ST08=5 °C is divided by the number of resources 6 compressors therefore the step for each resource
is 0.8°C, each 0.8°C if the temperature is increasing or decreasing one of the resource is turned on or off.
Par. ST08 Regulation band in heat pump mode
The configured resources are distributed inside the regulation band.
Par. ST09 Defines the thermoregulation probe in chiller.
0= NTC Temperature probe of the evaporator inlet
1= NTC Temperature probe of the evaporator circuit #1
2= NTC Temperature probe of the evaporator circuit #2
3= NTC Temperature probe of the common evaporator
4= Probe temperature of the remote front panel #1.
5= Probe temperature of the remote front panel #2.
The ST10 parameter defines the thermoregulation probe of the unit with heat pump control
0= NTC probe temperature of the evaporator inlet
1= NTC probe temperature of the evaporator #1 outlet
2= NTC probe temperature of the evaporator #2 outlet
3= NTC probe temperature of the evaporator common outlet
4= Remote terminal # 1 probe
5= Remote terminal # 1 probe
6= NTC probe temperature of the condenser common inlet
7= NTC probe temperature of the condenser # 1 inlet
8= NTC probe temperature of the condenser # 2 inlet
9= NTC probe temperature of the condenser # 1 outlet
10= NTC probe temperature of the condenser # 2 outlet
11= NTC probe temperature of the condenser common outlet
ATTENTION
To have the same regulation both for chiller and heat pump set the parameters ST09 and ST10 with the same value
22 SELECTION OF THE KIND OF THERMOREGULATION
Par. ST11 determines the type of regulation
0= Proportional
1= Neutral zone
2= Proportional integral
22.1 GRAPH OF THE COMPRESSOR THERMOREGULATION IN CHILLER
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22.2 GRAPH OF THE COMPRESSOR THERMOREGULATION IN HEAT PUMP
22.3 GRAPH NEUTRAL ZONE COMPRESSOR CONTROL
Not yet available on this version
Compressor regulation in chiller
Compressor regulation in heat pump
22.4 GRAPH PROPORTIONAL
CONTROL
INTEGRAL
COMPRESSOR
REGULATION
Not yet available on this version
Compressor regulation in chiller
Compressor regulation in heat pump
23 THERMOREGULATION OF THE ANTI FREEZE, INTEGRATION HEATING OR
BOILER
23.1 THERMOREGULATION OF THE HEATERS IN CHILLER
The Par. Ar06 selects the probe/s control for the anti-freeze alarm and the relay outputs configured as anti-freeze / support / boiler
heaters for the circuits 1 and 2 in chiller mode.
Par. Ar06 = 0: the function is disabled
Par. Ar06 = 1: the thermoregulation, the anti-freeze alarm and the relay outputs for heaters circuit 1 and 2 (or both together) is
controlled only throughout the NTC probe configured as evaporator water inlet.
Par. Ar06 = 2: the thermoregulation, the anti-freeze alarm and the relay outputs for heaters circuit #1 is controlled with NTC probe
configured as evaporator probe outlet of the circuit #1.
The thermoregulation, the anti-freeze alarm and the relay outputs for heaters circuit #2 is controlled with NTC probe configured as
evaporator probe outlet of the circuit #2.
ATTENTION: It is not possible to control the heaters of the crcuit #1 with the probe of the circuit #2 and viceversa.
Par. Ar06 = 3: the thermoregulation, the anti-freeze alarm and the relay outputs for heaters circuit 1 and 2 (or both together) is
controlled throughout the NTC probe configured as evaporator water outlet circuit #1 or circuit #2 or evaporator water common outlet, or
if they are all configured, by the first probe that goes below the setpoint.
23.2 THERMOREGULATION OF THE HEATERS IN HEAT PUMP
The Par. Ar07 selects the probe/s control for the anti-freeze alarm and the relay outputs configured as anti-freeze / support / boiler
heaters for the circuits 1 and 2 in heat pump mode.
Par. Ar07 = 0: the function is disabled
Par. Ar07 = 1: the thermoregulation, the anti-freeze alarm and the relay outputs for heaters circuit 1 and 2 (or both together) is
controlled only throughout the NTC probe configured as evaporator water inlet.
Par. Ar07 = 2: the thermoregulation, the anti-freeze alarm and the relay outputs for heaters circuit #1 is controlled with NTC probe
configured as evaporator probe outlet of the circuit #1.
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The thermoregulation, the anti-freeze alarm and the relay outputs for heaters circuit #2 is controlled with NTC probe configured as
evaporator probe outlet of the circuit #2.
ATTENTION: It is not possible to control the heaters of the crcuit #1 with the probe of the circuit #2 and viceversa.
Par. Ar07 = 3: the thermoregulation, the anti-freeze alarm and the relay outputs for heaters circuit 1 and 2 is controlled throughout the
NTC probes configured as evaporator water outlet circuit #1, circuit #2 and evaporator water common outlet , or if they are all
configured, by the first probe that goes below the setpoint.
ATTENTION
The two outputs are controlled in parallel if configured with only by one NTC probe control for common evaporator outlet.
FUNCTIONNING OF THE ANTI-FREEZE, INTEGRATION HEATING, BOILER HEATERS DURING THE DEFROST CYCLE
The Ar05 defines the support heaters:
Par. Ar05 = 0: The heaters are activated only by the thermoregulation algorithm.
Par. Ar05 = 1: The heaters are activated only by the thermoregulation algorithm and are always on during the defrost. They turn on
when the 4-way valve change from heat-pump to chiller and turn off only after the dripping time and the compressors restart.
23.3 THERMOREGULATION OF THE SUPPORT HEATERS FOR AIR/AIR UNIT
The NTC control in chiller mode depends on the Ar06 parameter value while from the Ar07 value in heat pump mode. With one relay
configured as heaters for circuit #1
With one output configured as heater of the circuit #1 the output is enabled both for chiller and heat pump request.
With two outputs configured as heater of the circuit #1 and two the outputs are enabled both for chiller and heat pump request.
FUNCTIONNING OF THE SUPPORT HEATERS DURING THE DEFROST CYCLE
The Ar05 parameter defines the support heaters operating mode during the defrost.
Par. Ar05 = 0: the heaters are controlled only through the thermoregulation algorithm.
Par. Ar05 = 1: heaters are controlled only through the thermoregulation algorithm and are always on during the defrost cycle. They turn
on when the 4-way valve change from heat-pump to chiller and turn off only after the dripping time and the compressors restart
ATTENTION
The support heaters are always off when:
•
The supply fan is not configured
•
The supply fan is off
•
The unit is in stand-by or remote off
•
The probe is faulty
23.4 CONDENSER ANTI-FREEZE HEATERS REGULATION
The regulation dependes on the configuration of the heater circuit #1 relay and heater circuit #2 relay and the corresponding NTC
probes used to this control.
The parameter Ar08 is used to select the heaters probe control both for chiller and heat pump.
Par. Ar08 = 0: The thermoregulation, the alarm and the heater regulation are disabled.
Par. Ar08 = 1: The thermoregulation, the alarm and the regulation of both the heaters together of the circuit 1 and 2 is excecuted only
through the condesner water inlet NTC probe.
Par. Ar08 = 2: The thermoregulation, the alarm and the heater #1 regulation is executed through the condenser water outlet NTC probe
of the circuit #1.
The thermoregulation, the alarm and the heater #1 regulation is executed through the condenser water outlet NTC probe of the circuit
#2.
ATTENTION
It is not possible to control the heaters of the circuit #1 with the NTC probe of the condenser water outlet of the circuit #2 and viceversa.
Par. Ar08 = 3
The thermoregulation, the alarm and the regulation of both the heaters together of the circuit 1 and 2 is excecuted through the probes
configured as condenser water outlet of the circuit #1 and 2 and the NTC of the common outlet.
ATTENTION
When the outputs are configured as heaters circuit #1 and 2 they are both controlled by the NTC probe of the common condenser
outlet.
23.5 THE
THERMOREGULATION
OF
THE
ANTI-FREEZE
HEATERS
OF
THE
CONDENSER/RECOVERY
The thermoregulation depends on the configuration of the circuit #1 and 2 heaters and the NTC probe to control the cycle.
The Par. Ar08 selects the probe to control the anti-freeze alarm and the heaters thermoregulation.
Par. Ar08 = 0: the thermoregulation, the anti-freeze alarm and the heaters control of the circuit #1 is controlled by the NTC of the
condenser water common inlet or the circuit #1, while the relay output for circuit #2 is controlled through the NTC configured as
condenser water common inlet or circuit 2.
Par. Ar08 = 1: the thermoregulation, the anti-freeze alarm and the heaters control of the circuit #1 is controlled by the NTC of the
condenser water common outlet or the circuit #1, while the relay output for circuit #2 is controlled through the NTC configured as
condenser water common outlet or circuit 2.
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23.6 GRAPH OF THE ANTI-FREEZE- INTEGRATION HEATING - BOILER HEATER RELAYS
23.7 BOILER THERMOREGULATION(ANTIFREEZE), BOILER FUNCTION
To determine the electrical heater control in chiller or heat pump mode because the electrical heaters can be used as anti-freeze or can
also be used to integrate or heating the heat pump mode or in particular situation in chiller mode.
The function is enabled when:
1.
One NTC probe configured as external air for dynamic setpoint / boiler function.
2.
Parameter Ar11 <>0.
Integration control Ar11=1
When the air temperature value detected by the external air probe decreases under the Ar12 setpoint, the Ar14 delay starts counting. If
during the Ar14 counting the external air increases above the Ar12 + Ar13 (differential) the function is aborted and the Ar14 time is
reloaded.
When the time Ar14 is expired and the external air temperature is still under the Ar12 setpoint and the water temperature detected by
the evaporator probe is lower than Ar15 in chiller mode or Ar17 in heat pump mode, the heaters are turned on. When the temperature
rises over Ar15 + Ar16(differential) in chiller mode or Ar17+Ar18 in heat pump the heaters are turned off.
With the heaters on if the temperature of the external air rises above the Ar12 (set) + Ar13(differential) immediately they are turned off
and the Ar14 delay is reloaded.
Attention With Boiler function activated and external air temperature value lower than Ar12 if the air temperature decreases under the
Ar19 setpoint the compressors are turned off. They are restarted only if the external air temperature rises above Ar19+Ar20
(differential).
Heating control Ar11=2
If during the functioning the external air temperature value goes down under the Ar12 setpoint, the Ar14 delay time starts counting. If
during this delay the external temperature rises above the Ar12+Ar13 the process is aborted and the time Ar14 reloaded.
If after the Ar14 delay the external air temperature is still under the Ar12 setpoint and the regulation water temperature detected by the
evaporator probe is lower than Ar15 (chiller) or Ar17 (Heat Pump), the heaters are turned on while the compressor(s) and the
condensing fan(s) are turned off. The heating is made only by the heaters.
When the temperature rises above the Ar15+Ar16(regulation band in chiller) or Ar15 + Ar17(regulation band in HP) the heaters are
turned off.
If during the functioning the external air temperature value rises above the Ar12 +Ar13, the heaters are turned off and the compressor
thermoregulation is restarted, the Ar14 delay is reloaded.
HEATERS of the BOILER (ANTI-FREEZE) DURING the DEFROST CYCLE
The Ar05 parameters defines the functioning of the heaters of the boiler during the defrost, If Ar05=0 the heaters are activated by the
thermoregulation while if Ar05=1 the heaters are turned on when the 4-way valve changes the status from heat pump to chiller and then
they are turned off after the dripping time at the end of the defrost.
ATTENTION
The heaters of the boiler are always off when:
•
Active flow alarm
•
Active overload alarm of the configured water pump
•
Active overload alarm of one of the two water pumps configured and any of the water pumps available for the water flow
control.
(In this case the heaters are activated only by the anti-freeze setpoint to protect the evaporator)
24 ANTI - FREEZE ALARM AND HEATERS REGULATION THROUGH DIGITAL
INPUT
st
The anti-freeze alarm and the heaters regulation of the 1 circuit is managed by the digital input configured as anti-freeze alarm circuit
#1.
nd
The anti-freeze alarm and the heaters regulation of the 2 circuit is managed by the digital input configured as anti-freeze alarm circuit
#2.
ATTENTION
st
nd
The output of the 1 circuit can not be managed by the digital input of the 2 circuit and viceversa.
st
nd
The regulation outputs of th1 1 and 2 circuit can be regulated together by a single digital input configured as anti-freeze circuit #1 or
circui #2. In this case, with active alarm of the common digital input, the display will show both the antifreeze alarm messages.
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25 THERMOREGULATION AND COMPRESSORS ROTATION
The CO14 parameter determines the compressor on and off sequence.
CO14= 0
st
nd
rd
rd
nd
Sequential. Depending on the thermoregulation: the 1 compressor is turned on, then the 2 and the 3 etc.; then the 3 off, the 2 and
nd
rd
then 1st. The first is off only if the 2 and 3 are off.
CO14= 1
Rotation by hour. Depending on the time running hours the first compressor called by the thermoregulation is the one with less time
running hours. This algorithm is aborted if the unit is configured with one capacity compressor.
CO14= 2
Rotation by starts-up. Depending on the number of starts-up per hour the first compressor called or turned off is the one with less
starts-up number. This algorithm is aborted if the unit is configured with one capacity compressor.
26 SATURATION - CIRCUIT BALANCING
CIRCUIT SATURATION
CO15 = 0
Depending on the thermoregulation all the compressors of the first are turned on before using the second circuit.
Eg. 2 circuits, 2 step for each circuit (total of 4 resources)
Activation:
The thermoregulation immediately requires all the 4 resources: the controller turns on the compressor with less running hours, then the
second compressor of the same circuit. Then it is turned on the compressor with less running hours of the other circuit and then the
second compressor of the other circuit.
De-activation:
It is selected first the the circuit having less resources on, if the running resources are equals for both circuits, the first compressor
turned off is the one with the greater number of running hours or less number of starts-up, then, in the same circuit, the other resources
are turned off. With the same algorithm the controller will turn off the resources of the other circuit.
CIRCUIT BALANCING
CO15 = 1: the circuit balancing is applicable only if there a2 circuits and 2 resources for circuits (total of 4 resources).
The circuit balancing allow to equalise the power supplied by the two circuits, the difference can be one step maximum.
ES. 2 circuits, 2 step for each circuit (total of 4 resources)
Activation:
The thermoregulation immediately requires all the 4 resources: the controller turns on the compressor with less running hours, then the
nd
compressor with less running hours of the other circuit. Again the first circuit and it is turned on the 2 compressor then the second
compressor of the other circuit.
De-activation:
It is selected first the circuit having more resources on, if the running resources are equals for both circuits, the first compressor turned
off is the one with the greater number of running hours or less number of starts-up, then, in the other circuit, the other compressor with
nd
less running hours. Again the first circuit and it is turned off the 2 compressor then the second compressor of the other circuit.
COMPRESSOR REGULATION
ƒ
When it is turned on each compressor runs for the CO01 minimum time. This minimum time is aborted in case of alarm,
STAND-BY / ON OFF by remote, defrost or partialization through NTC transducer.
ƒ
When it is turned off each compressor can restart only after the CO02 time delay.
ƒ
Both for sequential or rotation regulation with compressors or capacity steps: the successive resource is turned on after the
CO03 delay in seconds.
ƒ
Both for sequential or rotation regulation with compressors or capacity steps: the successive resource is turned off after the
CO03 delay in seconds.
ƒ
If the power supply fails all the outputs are forced off for the CO005 time delay.
27 COMPRESSORS
27.1 COMPRESSORS START- UP
Parameter CO10 defines the compressor start-up:
CO10=0 (direct)
CO10=1(part winding)
CO10=2 (Star-delta)
To configure the compressor start-up it is necessary check the CF parameters of the relay outputs.
After selecting the compressor start-up mode, if the output resources are not properly configured, eg: more or less relay outputs than
the necessary, the ACF6 alarm is displayed.
27.2 DIRECT START- UP
Configure one relay output for each compressor (K1 relay Fig. 1). One relay output controls the corresponding compressor up to 6
resources.
EXAMPLE
Direct start up configuration for one compressor
Set the Parameter CF54 = 21. Direct start-up RL1 compressor # 1
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Fig. 1
27.3 DIRECT START- UP OF A CAPACITY COMPRESSOR
When working with capacity compressors and with full power start-up: the controller turns the solenoid valve on first and then, after 1
second, the compressor motor. Durning the CO13 time delay the valve is forced on: minimum power. When the C013 is expired if the
thermoregulation requires more power the valve will be switched off (maximum power).
27.4 PART WINDING
This algorithm allows to reduce the start-up current when using hermetic or semi-hermetic compressors or medium – big screw
compressors.
Each compressor needs two relay outputs:
One is the PW motor coil #1 of the compressor;
One is the PW motor coil #2 of the compressor;
The time delay between the two outputs is determined by CO11 expressed in decimal of second in a range 0..5 seconds.
The maximum number of relay outputs is 8 this means 4 compressors with Part Winding start-up.
EXAMPLE
Part Winding configuration of the compressor relay outputs
Set the Par CF54 = 21. PW motor coil #1 relay of the compressor #1;
Set the Par CF55 = 22. PW motor coil #2 relay of the compressor #1;
27.5 COMPRESSOR START- UP WITH PART WINDING
First is turned on the PW motor coil #1 of the compressor #1 (relay K1 of fig2), after the CO11 delay it is turned on the second motor coil
of the same compressor (relay K2 of fig2).
To turn off the compressor the two relay outputs are both turned off at the same time.
Fig 2
27.6 PART WINDING START- UP OF COMPRESSORS OR CAPACITY COMPRESSORS
If one or more capacity compressors are configured and the thermoregulation requires the full load start-up: the controller turns the
st
solenoid valve on, after 1 second the first motor part of the 1 compressor (relay K1 of Fig. 2) and then the complete control with the
contactor K2. Durning the CO13 time delay the step valve is forced on: minimum power. When the C013 is expired if the
thermoregulation requires more power the valve will be switched off (maximum power).
27.7 STAR - DELTA START
This algorithm allows to reduce the start-up current when using hermetic or semi-hermetic compressors or medium – big screw
compressors.
Each compressor needs three relay outputs
The maximum number of relay outputs is 6 this means 2 compressors with Star-delta start-up.
EXAMPLE
Star-delta configuration of the compressor relay outputs
Set Par CF54 = 21. Star-delta line #1 relay of the compressor #1;
Set Par CF55 = 22. Star-delta line #2 relay of the compressor #1;
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Set Par CF56 = 23. Star-delta centre relay of the compressor #1;
27.8 STAR - DELTA START OF A COMPRESSOR
Each compressor needs three relay outputs:
One relay output as Line #1 of the compressor #1 (Relay K1 of the Fig.3).
One relay output as Line #2 of the compressor #1 (Relay K3 of the Fig.3).
One relay output as centre of the star (Relay K2 of the Fig.3)
To turn on the compressor: the centre of the star relay is turned on (Relay K2 of the Fig.3), after 1 second the Line #1 relay is turned on
(relay K1 Fig.3). The two relays work together for the time set in CO11, then the relay of centre of the star is switched off (relay K2
Fig.2). Then after the CO12 delay time the relay of the line #2 is turned on (relay K3 Fig.3).
To turn off the compressor: The output relay of the line #1 and line #2 are switched off together.
Fig. 3
27.9 STAR - DELTA START- UP OF A CAPACITY COMPRESSOR
If one or more capacity compressors are configured and the thermoregulation requires the full load control, the controller turns the
solenoid valve on, then after 1 second the centre of the star relay is turned on (relay K2 Fig. 3). Then the star-delta procedure will be
completed with the other two contactors. Durning the CO13 time delay the step valve is forced on: minimum power. When the C013 is
expired if the thermoregulation requires more power the valve will be switched off (maximum power).
28 CAPACITY CONTROL
CO06 capacity control operative mode.
The relay configured as capacity control are managed by the thermoregulation as shown in the graph and into the tables here below.
Par CO06 = 0 ON/OFF step
0= Step control. Depending on the thermoregulation requests and the output polarity a power step can be enabled or disabled. The step
is activated only after the previous is turned off.
Eg: # 1 capacity compressor with 3 partializations: 4 Power steps.
Capacity
Compr.
Out relay
Out relay
Out relay
25%
Compressor ON
Step P 1 ON
Step P 2 OFF
Step P 3 OFF
50%
Compressor ON
Step P 1 OFF
Step P 2 ON
Step P 3 OFF
75%
Compressor ON
Step P 1 OFF
Step P 2 OFF
Step P 3 ON
100%
Compressor ON
Step P 1 OFF
Step P 2 OFF
Step P 3 OFF
Step control process
Compressor
Part #1
Part #2
Part #3
Power involved
0%
25 %
50 %
75 %
100 %
Par CO06 = 1 direct action with sequential step
1= the steps are turned on in sequential mode, the outputs are anabled or disabled depending on the output polarity. In case of
thermoregulation request one of the step is turned on or off while the other steps do not change their status.
Eg: # 1 capacity compressor with 3 partializations: 4 Power steps.
Capacity
25%
50%
75%
100%
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Out relay
Out relay
Compressor ON
Step P 1 ON
Step P 2 OFF
Step P 3 OFF
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Step P 1 ON
Step P 2 ON
Step P 3 OFF
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Compressor ON
Step P 1 ON
Step P 2 ON
Step P 3 ON
Compressor ON
Step P 1 OFF
Step P 2 OFF
Step P 3 OFF
Direct action with sequential step
Compressor
P1
P2
P3
Power involved
0%
25 %
50 %
75 %
100 %
Par CO06 = 2 inverse action with sequential step
1= the steps are turned on in sequential mode, the outputs are anabled or disabled depending on the output polarity. In case of
thermoregulation request one of the step is turned on or off while the other steps do not change their status.
Eg: # 1 capacity compressor with 3 partializations: 4 Power steps.
Capacity
Compr.
Out relay
Out relay
Out relay
25%
Compressor ON
Step P 1 ON
Step P 2 ON
Step P 3 ON
50%
Compressor ON
Step P 1 ON
Step P 2 ON
Step P 3 OFF
75%
Compressor ON
Step P 1 ON
Step P 2 OFF
Step P 3 OFF
100%
Compressor ON
Step P 1 OFF
Step P 2 OFF
Step P 3 OFF
Inverse action with sequential step
Compressor
P1
P2
P3
Power involved
0%
25 %
50 %
75 %
100 %
Par CO06 = 3 Continuous with steps and direct total action
3 = the steps are turned on in sequential mode, the outputs are anabled or disabled depending on the output polarity. In case of
thermoregulation request one of the step is turned on or off while the other steps do not change their status.
Eg: # 1 capacity compressor with 3 partializations: 4 Power steps.
Capacity
Compr.
Out relay
Out relay
Out relay
25%
compressor ON
Step. N° 3 OFF
Step N° 2 OFF
Step. N° 1 OFF
50%
compressor ON
Step N° 3 OFF
Step. N° 2 OFF
Step N° 1 ON
75%
compressor ON
Step. N° 3 OFF
Step. N° 2 ON
Step N° 1 ON
100%
compressor ON
Step. N° 3 ON
Step. N° 2 ON
Step N° 1 ON
Direct action with sequential step
Compressor
P1
P2
P3
Power involved
0%
25 %
50 %
75 %
100 %
ATTENTION
When working with capacity control in sequential step in direct or reverse modes: if the power requested is 50% and 75% the unit turn
on also the step 25% that must be enabled to make run the other two.
28.1 MINIMUM LOAD START- UP
Par. CO07 configuration of the start-up with minimum load and compressor type.
st
It allows to configurate the 1 partialization valve of the compressor that can be the partialization start-up valve of an alternative
compressor or the minimum load for screw compressor.
st
In this way the lower value of partialization (normally is configured as the 1 output with the 25%) can be used as minimum start-up load
and also as thermoregulation step or only as minimum start-up load and never as thermoregulation step.
EXAMPLE
Having one compressor with 3 partializations, at the compressor start-up, with CO07=0, the partialization valve is enabled only for the
time CO13 but it won’t be never used during the thermoregulation. After the compressor stops running the time CO13 will be reloaded.
Having one compressor with 3 partializations, at the compressor start-up, with CO07=1, the partialization valve is enabled for the time
CO13 and it will be considered also as thermoregulation step. After the compressor stops running the time CO13 will be reloaded.
EXAMPLE WITH SCREW COMPRESSOR
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Having one compressor with 3 partializations, with CO07=2 when the compressor is off the partialization valve is always on, so as, in
case of start-up, it allows to have the minimum load. After the compressor is started the valve is on only for CO13 time and it won’t be
considered as regulation step. After the compressor stops running the time CO13 will be reloaded.
Having one compressor with 3 partializations, with CO07=3 when the compressor is off the partialization valve is always on, so as, in
case of start-up, it allows to have the minimum load. After the compressor is started the valve is on for CO13 time but it will be
considered as regulation step. After the compressor stops running the time CO13 will be reloaded.
28.2 BY- PASS GAS VALVE DURING COMPRESSOR START- UP
It allows to manage, with the partialization valve, also the valve to run the compressor with no load by-passing the circuit.
On time of the by-pass gas valve during the compressor start-up.
The funcrion is enabled if the CO13 <>0 and one of the relay output is configured as by-pass valve compressor 1, 2 ,3 or 4.
Functionning: When thermoregulation requires the relay is turned ON 1 second before turning in the compressor and goes off after the
time set in parameter CO13. After the compressor stops running the time CO13 will be reloaded.
28.3 SOLENOID VALVE INTERMITTENT FOR SCREW COMPRESSOR
If configured this output is ON when the compressor is ON (in case of Part Winding or Star-delta it corresponds with the first relay on)
for the time set in Par. CO08 and then OFF for the time set in Par. CO09. The cycle CO08 – CO09 of the valve is repeated until the
compressor is ON.
ATTENTION:
When the valve output is configured, the intermittent cycle is activated only if the Par. CO08 <> 0.
29 PUMP DOWN
The Pump down process is enabled only if the CO36 parameter is not equal to 0.
29.1 OFF UNIT WITH PUMP DOWN AND WITH LOW PRESSURE SWITCH CONTROL
The process is enabled if the low pressure switch of the circuit is configured with parameter CO36 = 1 or 3 and one of the relay output is
configured as pump-down solenoid circuit 1 or 2. (CO36 = 2 or 4 are related to a pressure switch dedicated to this function or the
pressure transducer).
When the thermoregulation is going to stop, before turning off the last compressor, the solenoid valve is closed. The compressor runs
until the low pressure switch connected to the digital input becomes active for a maximum time set in CO39. In this case there is no Low
pressure alarm and no alarm message will be displayed, the digital input active function will disable the last running compressor. A
possible low pressure alarm could appear only if the digital input is still active after the AL02 time.
If the last compressor stops before the low pressure switch because of the CO39 time-out (maximum compressor on time after turning
off the P.D. solenoid valve), the ICHILL calculates the AL21 parameter (maximum number of pump down alarm per hour) and if an
alarm occurs the display will show the alarm code, the buzzer and the alarm relay will be on.
If the thermoregulation is stopped via digital input (as remote off) or from chiller/heat pump keys, during the pump down process the
chiller or the heat pump led will blink.
When the next thermoregulation restarts the PD solenoid valve turns on and after 1 seconds, if the low pressure switch is not active, the
compressors start.
For any compressor alarm events occur the procedure is stopped and the compressor will be stopped.
PAR. CO36 = 3
OFF UNIT WITH PUMP DOWN in CHILLER MODE (No PUMP – DOWN at START-UP)
In Heat pump mode the Pump down process is inhibited and the solenoid valve works in parallel with the compressor.
29.2 PUMP DOWN WITH DEDICATED PRESSURE SWITCH
PAR.CO36 = 1 OFF UNIT WITH PUMP DOWN ( No PUMP – DOWN at START-UP)
The function is enabled if one relay output is configured as pump down solenoid valve for circuit 1 and 2 and one digital input as pump
down pressure switch of the circuit 1 and 2.
When the thermoregulation is going to stop, before turning off the last compressor, the solenoid valve is closed. The compressor runs
until the pump down pressure switch connected to the digital input becomes active for a maximum time set in CO39.
If the last compressor stops before the pump down pressure switch because of the CO39 time-out (maximum compressor on time after
turning off the P.D. solenoid valve), the ICHILL calculates the AL21 parameter (maximum number of pump down alarm per hour) and if
an alarm occurs the display will show the alarm code, the buzzer and the alarm relay will be on.
If the thermoregulation is stopped via digital input (as remote off) or from chiller/heat pump keys, during the pump down process the
chiller or the heat pump led will blink.
When the next thermoregulation restarts the PD solenoid valve turns on and after 1 seconds, if the low pressure switch is not active, the
compressors start.
For any compressor alarm events occur the procedure is stopped and the compressor will be stopped.
PAR. CO36 = 2 ON/OFF WITH PUMP DOWN
The function is enabled if one relay output is configured as pump down solenoid valve for circuit 1 and 2 and one digital input as pump
down pressure switch of the circuit 1 and 2. (CO36 = 2 or 4 are related to a pressure switch dedicated to this function or the pressure
transducer).
When the thermoregulation is going to stop, before turning off the last compressor, the solenoid valve is closed. The compressor runs
until the pump down pressure switch connected to the digital input becomes active for a maximum time set in CO39.
If the last compressor stops before the pump down pressure switch because of the CO39 time-out (maximum compressor on time after
turning off the P.D. solenoid valve), the ICHILL calculates the AL21 parameter (maximum number of pump down alarm per hour) and if
an alarm occurs the display will show the alarm code, the buzzer and the alarm relay will be on.
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If the thermoregulation is stopped via digital input (as remote off) or from chiller/heat pump keys, during the pump down process the
chiller or the heat pump led will blink.
When the next thermoregulation restarts the PD solenoid valve turns on and after 1 seconds, if the low pressure switch is not active, the
compressors start.
If the compressors do not restart within the CO39 time the pump-down alarm will signalled and the compressor are stopped. In this case
if AL23 =0 the compressor can restart only if the pressure switch becomes active, or if AL23=1 and the number of alarms per hour
becomes =AL22 only after the manual reset
PAR. CO36 = 3
OFF UNIT WITH PUMP DOWN in CHILLER MODE (No PUMP – DOWN at START-UP)
In Heat pump mode the Pump down process is inhibited and the solenoid valve works in parallel with the compressor.
PAR. CO36 = 4
ON and OFF UNIT WITH PUMP DOWN in CHILLER MODE
In Heat pump mode the Pump down process is inhibited and the solenoid valve works in parallel with the compressor.
29.3 PUMP DOWN FUNCTION WITH DEDICATED PRESSURE PROBE
PAR.CO36 = 1
STOP UNIT with PUMP DOWN ( No PUMP – DOWN at START-UP)
The function is enabled if one relay output is configured as pump down solenoid valve for circuit 1 and 2 and one analogue input as low
pressure probe of the circuit 1 and 2.
When the thermoregulation is going to stop, before turning off the last compressor, the solenoid valve is closed. The compressor runs
until the pump down pressure connected to the analogue input reaches the set value in CO37.
If the last compressor stops before the pump down set value because of the CO39 time-out (maximum compressor on time after turning
off the P.D. solenoid valve), the ICHILL calculates the AL21 parameter (maximum number of pump down alarm per hour) and if an
alarm occurs the display will show the alarm code, the buzzer and the alarm relay will be on.
If the thermoregulation is stopped via digital input (as remote off) or from chiller/heat pump keys, during the pump down process the
chiller or the heat pump led will blink.
When the next thermoregulation restarts the PD solenoid valve turns on and after 1 seconds, if the low pressure switch is not active, the
compressors start.
For any compressor alarm events occur the procedure is stopped and the compressor will be stopped.
PAR. CO35 = 2 UNIT START/STOP with PUMP DOWN
The function is enabled if one relay output is configured as pump down solenoid valve for circuit 1 and 2 and one analogue input as low
pressure probe of the circuit 1 and 2.
When the thermoregulation is going to stop, before turning off the last compressor, the solenoid valve is closed. The compressor runs
until the pump down pressure probe connected to the analogue input reaches the setpoint in CO37.
If the last compressor stops before the pump down pressure switch because of the CO39 time-out (maximum compressor on time after
turning off the P.D. solenoid valve), the ICHILL calculates the AL21 parameter (maximum number of pump down alarm per hour) and if
an alarm occurs the display will show the alarm code, the buzzer and the alarm relay will be on.
If the thermoregulation is stopped via digital input (as remote off) or from chiller/heat pump keys, during the pump down process the
chiller or the heat pump led will blink.
When the next thermoregulation restarts the PD solenoid valve turns on and after 1 seconds, if the pressure probe is higher then CO37,
the compressors start.
If the compressors do not restart within the CO39 time the pump-down alarm will signalled and the compressor are stopped. In this case
if AL23 =0 the compressor can restart only if the pressure switch becomes active, or if AL23=1 and the number of alarms per hour
becomes =AL22 only after the manual reset.
PAR. CO36 = 3
START UNIT WITH PUMP DOWN in CHILLER MODE (No PUMP – DOWN at START-UP)
In Heat pump mode the Pump down process is inhibited and the solenoid valve works in parallel with the compressor.
PAR. CO36 = 4
UNIT START/STOP WITH PUMP DOWN in HEAT PUMP
In Heat pump mode the Pump down process is inhibited and the solenoid valve works in parallel with the compressor.
29.4 PUMP DOWN ALARM DURING COMPRESSORS START- UP
ACTIVATION
If within the CO39 delay time (Maximum pump down restart time) the compressor/s do not restart because of the low pressure, the
instrument will signal B1PL (pump down alarm at the start-up of the circuit 1) or the label B2PL (pump down alarm at the start-up of the
circuit 2). With active alarm the restart procedure is disabled. The alarms can be:
•
with Automatic Reset that is not logged, the buzzer and alarm relay are not activated.
•
with Manual Reset that is logged, the buzzer and alarm relay are activated.
The Parameter AL22 determines the number of pump down alarm events to turn from automatic to manual reset
The Reset is always manual if AL22 = 0
The Reset is always automatic if AL22 = 16
The reset becomes manual after AL22 = 1 ..15 events and the configuration of Par. AL23.
Par. AL23 defines if the reset of the AL22 alarm events can be forced from manual to automatic. In this case the alarm events, after
reaching AL22, is automatically reset but it is logged while the buzzer and the alarm relay are on.
In this way, in case of particularly critical condition, the unit restarts working without the help of the maintenance personnel.
RESET
•
The Automatic Reset is activated when the next compressor thermoregulation is requested, in this case the pressure condition of
the pump down must be satisfied.
•
The Manual Reset needs to enter the function Menu under the AlrM label. After the reset the next thermoregulation restarts if the
pump down pressure is in normal condition.
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ATTENTION
If the pump down function is enabled, during the unit start-up from digital input as pump down pressure switch and also from
analogue input as low pressure transducer, the compressor will restart only if both the inputs are satisfied.
29.5 PUMP DOWN ALARM DURING COMPRESSORS SWITCHING OFF
ACTIVATION
If within the time delay CO39 (maximum pump down duration in off) the low pressure switch or the pump down pressure switch is not
active or the pump down setpoint is not reached, the last compressor is switched off. In this case after this timeout the instrument
signals the B1PH or 2 alarms, in both cases when active the compressor is stopped.
The alarm can be:
•
with Automatic Reset that is not logged, the buzzer and alarm relay are not activated.
•
with Manual Reset that is logged, the buzzer and alarm relay are activated.
The Parameter AL21 determines the number of pump down alarm events to turn from automatic to manual reset
The Reset is always manual if AL21 = 0.
The Reset is always automatic if AL21 = 16.
The reset becomes manual after AL21 = 1 ..15.
RESET
•
The Automatic Reset is activated when the next compressor thermoregulation is requested, in this case the pressure condition of
the pump down must be satisfied.
•
The Manual Reset needs to enter the function Menu under the AlrM label. After the reset the next thermoregulation restarts if the
pump down pressure is in normal condition.
ATTENTION
If the pump down function is enabled, during the unit start-up from digital input as pump down pressure switch and also from
analogue input as low pressure transducer, the compressor will restart only if both the inputs are satisfied.
29.6 PUMP DOWN INFORMATION
ATTENTION
SELECTION OF THE COMPRESSOR (for pump down in switching off)
Eg:
Unit with 2 circuits and 3 compressors each.
st
Having an active digital input as remote off: if the compressor running hours are the same for all the compressors the unit will use the 1
st
nd
compressor of the 1 and the 2 circuit: therefore the number 1 and 4.
If the running hours are not equal for all compressors the unit will use the compressor having the less running time, this for any circuit
configuration.
During the pump down process the led of the running mode (chiller / heat pump) is blinking, while if one of the circuits are disabled from
the keyboard the running mode led is not blinking.
30 UNLOADING
30.1 HIGH TEMPERATURE OF THE EVAPORATOR WATER INLET
The function is always enabled in chiller mode if there are at least 2 steps of power (two compressor or 1 compressor with partialization)
per circuit.
It is used to run the unit with high temperature of the evaporator water inlet (such as during the hot summer) to avoid a possible high
pressure alarm event.
The function si managed through an analogue input configured as NTC evaporator water inlet.
30.2 UNLOADING DESCRIPTION
UNLOADING ACTIVATION
When the thermoregulation request begins to start the compressors in chiller mode, if the evaporator water inlet is equal or bigger than
the CO40 setpoint for the CO42 time.
When the unloading is active the display shows the AEUn blinking message alternated with the selected display measurement, the unit
will start with the loads selected with the CO49 parameter.
EXAMPLE
Unit with 2 circuits with 3 compressors each circuit.
If Par. CO49 = 2, 2 power steps per circuit, in case of unloading there will be 4 compressor running.
UNLOAD DEACTIVATION
If the temperature decreases under the value determined by (CO40-CO41) setpoint – differential, the unloading is disengaged, the
compressors are all available for the thermoregulation.
30.3 UNLOADING INFORMATION
If the temperature does not decrease enough to reach the CO40-CO41 value, under the CO40 setpoint the CO43, unloading timeout,
will start counting and when expired the unit will force the unloading off.
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30.4 UNLOADING
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PRESSURE, CONDENSING
TEMPERATURE OR
EVAPORATING
PRESSURE CONTROL
The function is always enabled for both the running mode in order to reduce the load and helps the unit to start: in chiller for high
temperature of the external air to avoid high pressure alarms, in heat pump for low temperature of external air to avoid the low pressure
alarms.
The compressor unloading in chiller mode is managed by the analogue input configured as condenser probe circuit 1 or 2 and
determined by CF07 (0=temperature, 1 = pressure)
The compressor unloading in heat pump mode is managed by the analogue input configured as evaporator probe circuit 1 or 2. If not
configured the heat pump unloading is managed from the condenser transducer.
30.5 REGULATION
UNLOADING IN CHILLER MODE
When the chiller thermoregulation request begins to start the compressors, if the condenser pressure/temperature is equal or bigger
than CO44 setpoint the unloading process, of that circuit probe, is engaged. The bottom display shows, alternated with the
measurement, the b1Cu or b2Cu labels. The number of active compressors/step is determined by the CO49 parameter.
EXAMPLE
Unit with 2 circuits with 3 compressors each.
If Par. CO49 = 2, 2 power steps per circuit, in case of unloading there will be 4 compressor running.
With capacity compressors and with unloading active, to avoid having a not well balanced circuit after reducing the power (step valve
on) the resource (the valve) is activated for the time set in CO50 even if the unloading function is not more activated and the
thermoregulation requires 100% of power. If CO50=0 the function is disabled and if necessary the valve is turned immediately off to
have the 100% of the power.
UNLOAD DE-ACTIVATION in CHILLER MODE
If the temperature decreases under the value determined by (CO44-CO45) setpoint – differential, the unloading is disengaged, the
compressors are all available for the thermoregulation.
30.6 OTHER INFORMATION ABOUT THE UNLOADING IN CHILLER
To avoid having long period of unloading function activated when the temperature or the pressure value is continuously within the SET
and SET+ differential, if the temperature or the pressure is higher than CO40, the CO48 time delay forces the unloading off for timeout
even if the temperature / pressure is not lower than CO44-CO45.
UNLOADING IN HEAT PUMP MODE
The compressor unloading in heat pump mode is managed by the analogue input configured as evaporator probe circuit 1 or 2.
When the heat pump thermoregulation request begins to start the compressors, if the evaporator pressure/temperature is equal or
bigger than CO46 setpoint the unloading process, of that circuit probe, is engaged. The bottom display shows, alternated with the
measurement, the b1Cu (crcuit2)or b2Cu (crcuit2)labels. The number of active compressors/step is determined by the CO49
parameter.
EXAMPLE
Unit with 2 circuits with 3 compressors each.
If Par. CO49 = 1, 1 power steps per circuit, in case of unloading there will be 2 compressor running, 1 per circuit.
With capacity compressors and with unloading active, to avoid having a not well balanced circuit after reducing the power (step valve
on) the resource (the valve) is activated for the time set in CO50 even if the unloading function is not more activated and the
thermoregulation requires 100% of power. If CO50=0 the function is disabled and if necessary the valve is immediately off to have the
100% of the power.
UNLOAD DE-ACTIVATION in HEAT PUMP MODE
If the evaporator temperature increases the value determined by (CO46+CO47) setpoint +differential, the unloading is disengaged, the
compressors are all available for the thermoregulation.
30.7 OTHER INFORMATION ABOUT THE UNLOADING IN HEAT PUMP
To avoid having long period of unloading function activated when the temperature or the pressure value is continuously within the SET
and SET+ differential, if the temperature or the pressure is higher than CO46, the CO48 time delay forces the unloading function off for
timeout event, even if the temperature / pressure is not lower than CO46+CO47.
31 SOLENOID VALVE FOR LIQUID INJECTION
There are two outputs relay that can be configure as solenoid valve compressor 1 and 2. The function is enabled when:
•
For compressor 1: one output relay is configured as solenoid valve compressor 1 and one analogue input is configured as
discharge temperature of compressor 1.
•
For compressor 2: one output relay is configured as solenoid valve compressor 2 and one analogue input is configured as
discharge temperature of compressor 2.
31.1
FUNCTIONNING
When the compressor is off the solenoid valve output is always OFF. When the compressor is on: if the PTC temperature of the
compressor discharge reaches CO51 setpoint the valve turns ON, while if the temperature decreases under C51-CO52 (set- differential)
the valve turns off.
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ATTENTION
The display resolution is 0.1°C until the read-out is 99.9, over 100°C it is 1°C.
32 WATER PUMP OF THE EVAPORATOR / SUPPLY FAN
32.1 WATER PUMP OF THE EVAPORATOR / SUPPLY FAN (AIR/AIR)
With only one evaporator water pump configured, the parameter CO19 / CO20 values do not affect the water pump functioning itself.
The water pump regulation involves the following modes:
Operative modes of the parameter CO16 of evaporator pump / Supply fan
CO16=0: Not enabled: water pump/supply fan not managed.
Attention: The air / air unit configured with CO16= 0 does not manage the output for integration heaters.
CO16 = 1: Continuous control.
The water pump/ supply fan are running only if the unit is running (chiller, heat pump). After giving the start in chiller or heat pump mode
the compressor regulation starts only after the time delay CO17.
The water pump/ supply fan are turned off only when the unit is turned off (stand-by) and, if CO18<>0, the water pump/ supply fan turns
off only after the this delay.
When the unit is in stand-by or remote off and the Ar09 =1, if the thermoregulation requires the antifreeze heaters also the water pump
is turned on.
CO16 = 2: on compressor demand.
When the compressor turns on also the water pump/ supply fan are turned on. In both chiller and heat pump modes the water pump/
supply fan starts CO17 before the compressor. When the last compressor is turned off the water pump/ supply fan is turned of after the
CO18 delay.
When the unit is in stand-by or remote off and the Ar09 =1, if the thermoregulation requires the antifreeze heaters also the water pump
is turned on.
The pump is always off when:
Remote OFF from digital input.
Digital input active of the water pump overload.
Digital input active of the evaporator water pump flow with MANUAL alarm.
During the defrost and when the compressor is off in dripping time the pump/supply fan is on.
32.2
HOT START ( SUPPLY FAN) ONLY FOR AIR / AIR UNIT IN HEAT PUMP MODE
The hot start function is available only for air/air unit configured with heat pump and it is active only during the heat pump mode.
It allows to start the supply fan only if the evaporating/condensing probe temperature is hot enough to avoid to introduce cold air flows.
FA24 Hot start Setpoint.
It is the temperature setpoint to stop the supply fan when the NTC probe of the evaporator #1 output or the evaporator #2 output or the
evaporator common output value is lower.
FA25 Hot start differential
Temperature differential of the hot start function.
33 EVAPORATOR PUMP GROUP
If two relay outputs are configured as evaporator water pump and support pump of the evaporator automatically the pump group control
is enabled.
First start-up of the unit: the running hours of the two pumps are both 0, if CO16=1 or 2 (continuous or on compressor demand pump
mode) by default the pump #1 is turned on. The successive restart of the unit is made with the pump #2.
During the normal functioning condition when the unit changes from a stand-by /remote off/ power off status to chiller or heat pump
mode the pump that is running is switched off and immediately the one with less running hours is turned on.
When the unit goes in stand-by or remote off the pump stays on for the time set in CO18.
When the unit is in stand-by or remote off and the Ar09 =1, if the thermoregulation requires the antifreeze heaters also the water pump
is turned on.
33.1 EVAPORATOR WATER PUMP ROTATION
Par. CO19 <> 0 to enable the function.
Durning the normal functionning condition, both for chiller and heat pump, if one pump reaches the running hours of the CO19
parameter, the pump is turned off while the other pump is re-activated.
If the CO20 <> 0, before changing from one to the other the two pumps work together for the time set in this parameter. If CO24=0 the
rotation is immediate and CO20 is not counted.
ATTENTION
The CO17/CO18 values, on and off delay between compressors and pumps, are calculated also for the pump group.
33.2 EVAPORATOR WATER PUMP ROTATION THROUGH DIGITAL INPUT CONTROL
With two digital inputs configured as overload alarm of water pump and support pump the rotation is enabled when the digital input of
the running pump becomes active. That pump is turned off while the other is forced on.
If the digital inputs are configured as evaporator water pump alarm and condenser water pump alarm the active digital input alarm stops
the corresponding pump.
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Note: During the defrost and when the compressor is off in dripping time the pump is on.
33.3 HOT START
FA25 Hot start Setpoint
Low temperature value of PB2 to stop the supply fan.
This function is available only with air / air unit configured as heat pump and allows to run the supply fan only when the air temperature
is enough hot.
FA26 Hot start differential
Temperature differential of the hot start function.
34 WATER PUMP OF THE CONDENSER
34.1 CONDENSER WATER PUMP CONTROL
If one relay is configured as condenser water pump the CO24 / CO25 parameter values do not affect the pump functioning..
Water pump regulation:
Operative mode of the condenser water pump parameter CO21
CO21 = 0 Not enabled, pump not controlled.
CO21 = 1 Continuous control. The water pump is running only if the unit is running (chiller, heat pump). After giving the the start in
chiller or heat pump mode the compressor regulation starts only after the time delay CO17.
The water pump is turned off only when the unit is turned off (stand-by) and, if CO23<>0, the water pump/ supply fan turns off only after
the this delay.
When the unit is in stand-by or remote off and the Ar09 =1, if the thermoregulation requires the antifreeze heaters also the water pump
is turned on.
CO21 = 2 on compressor demand.
When the compressor turns on also the water pump is turned on. In both chiller and heat pump modes the water pump/ supply fan starts
CO17 before the compressor. When the last compressor is turned off the water pump/ supply fan is turned of after the CO23 delay.
When the unit is in stand-by or remote off and the Ar09 =1, if the thermoregulation requires the antifreeze heaters also the water pump
is turned on.
The pump is always off when:
•
Remote OFF from digital input.
•
Digital input active of the condenser water pump overload.
•
Digital input active of the condenser water pump flow with MANUAL alarm.
During the defrost and when the compressor is off in dripping time the pump fan is on.
35 PUMP GROUP OF THE CONDENSER
If two relay outputs are configured as condenser water pump and support pump of the condenser automatically the pump group control
is enabled.
First start-up of the unit: the running hours of the two pumps are both 0, if CO21=1 or 2 (continuous or on compressor demand pump
mode) by default the pump #1 is turned on. The successive restart of the unit is made with the pump #2.
During the normal functioning condition when the unit changes from a stand-by /remote off/ power off status to chiller or heat pump
mode the pump that is running is switched off and immediately the one with less running hours is turned on.
When the unit goes in stand-by or remote off the pump stays on for the time set in CO23.
When the unit is in stand-by or remote off and the Ar09 =1, if the thermoregulation requires the antifreeze heaters also the water pump
is turned on.
35.1 CONDENSER WATER PUMP ROTATION
Par. CO24 <> 0 to enable the function.
During the normal functioning condition, both for chiller and heat pump, if one pump reaches the running hours of the CO24 parameter,
the pump is turned off while the other pump is re-activated.
If the CO25 <> 0, before changing from one to the other the two pumps work together for the time set in this parameter. If CO24=0 the
rotation is immediate and CO25 is not counted.
ATTENTION
The CO17/CO23 values, on and off delay between compressors and pumps, are calculated also for the pump group.
35.2 CONDENSER WATER PUMP ROTATION THROUGH DIGITAL INPUT CONTROL
With two digital inputs configured as overload alarm of water pump and support pump the rotation is enabled when the digital input of
the running pump becomes active. That pump is turned off while the other is forced on.
If only one digital input is configured as condenser water pump alarm or only as condenser water pump alarm the active digital input
alarm stops the corresponding pump.
During the defrost and when the compressor is off in dripping time the pump is on.
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36 LOAD MAINTENANCE
PARAMETERS CO26..CO31 are the set of the running hour counters of the compressors.
They establish, for each load, the number of running hours limit to display a maintenance message.
If one of these parameters is equal to 0 the maintenance signalling is disabled but the running hours counter remains active.
36.1 COMPRESSOR MAINTENANCE RESQUESTS
Label description
ACP1 (maintenance comp. 1) –…ACP6 (maintenance comp. 6)
Activation
Reset
Restart
Icon
Actions
REGULATIONS
Actions
Loads
Compressor running hours > counter setpoint for that compressor
Running hour reset (Hour label in Menu function)
Manual
blinking
Alarm relay and buzzer activated
Only signalling
Not modified
The parameters CO32 / CO33 define the hour set counters for the evaporator water pump / Support
evaporator water pump / Supply fan.
They establish the load running hours limit of the pump/s or the supply fan to give a maintenance signalling. If one of these parameters
is equal to 0 the maintenance signalling of that load is disabled but the running hours counter remains active.
37 CONDENSER FAN REGULATION
The FA01 and FA02 parameters define the operative mode of the condenser fans. The CF68 and CF69 selects which are the output
signals.
Par. CF68 Condenser fan control signal of the circuit #1
0= 0 ÷10V
1= 4÷20mA
2= PWM
Par.CF69 Condenser fan control signal of the circuit #2
0= 0 ÷ 10V
1= 4÷20mA
2= PWM
Par. FA01 Fan regulation
0 = Output not enabled
1 = always on
2 = ON/OFF step regulation
3 = ON/OFF continuous step regulation
4 = proportional fan speed
Par. FA02 Fan operative mode
0 = Fan on only if compressor on
1 = Independent from the compressor, off during the stand–by / or from remote OFF
Parameter combination FA01 – FA02
Par. FA01 = 1 + Par. FA02 = 0
Fans on when the compressor on (the fans work following the same output algorithm)
Par. FA01 = 1 + Par. FA02 = 1
Independent from the compressor status but off in stand–by.
Par. FA01 = 2 + Par. FA02 = 0
Fans on, with ON/OFF regulation and with temperature/pressure transducer control, only when the compressor is on (at least one relay
is configured as fan control). When the compressor turns off also the fans are forced off.
Par. FA01 = 2 + Par. FA02 = 1
Fans on, with ON/OFF regulation and with temperature/pressure transducer control, only when the compressor is on (at least one relay
is configured as fan control). When the compressor turns off the fans are thermoregulated depending on the condensing
temperature/pressure.
Par. FA01 = 3 + Par. FA02 = 0
Fans on, with ON/OFF continuos regulation and with temperature/pressure transducer control, only when the compressor is on (at least
one relay is configured as fan control). When the compressor turns off also the fans are forced off.
Par. FA01 = 3 + Par. FA02 = 1
Fans on, with ON/OFF continuos regulation and with temperature/pressure transducer control, only when the compressor is on (at least
one relay is configured as fan control). When the compressor turns off the fans are thermoregulated depending on the condensing
temperature/pressure.
Par. FA01 = 4 + Par. FA02 = 0
Fans on, with proportional regulation (PWM, 4..20mA, 0.10V) and with temperature/pressure transducer control, only when the
compressor is on. When the compressor turns off also the fans are forced off.
Par. FA01 = 4 + Par. FA02 = 2
Fans on, with proportional regulation (PWM, 4..20mA, 0.10V) and with temperature/pressure transducer control, only when the
compressor is on. When the compressor turns off the fans are thermoregulated depending on the condensing temperature/pressure.
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OUTPUT STEP RELE’ CONDENSER FAN
Par FA01 = 2 ON/OFF step regulation
N° 1 circuit with 4 step of ventilation
Step regulation
OUT relè
Out relè step n° 1
Out relè step n° 2
Out relè step n° 3
Out relè step n° 4
step n° 1
step N° 1 ON
step N° 2 OFF
step N° 3 OFF
step N° 4 OFF
step n° 2
step N° 1 OFF
step N° 2 ON
step N° 3 OFF
step N° 4 OFF
step n° 3
step N° 1 OFF
step N° 2 OFF
step N° 3 ON
step N° 4 OFF
step n° 4
step N° 1 OFF
step N° 2 OFF
step N° 3 OFF
step N° 4 ON
Gradino n° 2
step N° 1 ON
step N° 2 ON
step N° 3 OFF
step N° 4 OFF
Gradino n° 3
step N° 1 ON
step N° 2 ON
step N° 3 ON
step N° 4 OFF
Gradino n° 4
step N° 1 ON
step N° 2 ON
step N° 3 ON
step N° 4 ON
Par FA01 = 3 ON/OFF continuous step regulation
N° 1 circuito con quattro gradini di ventilazione
Continuous step regulation
OUT relè
Out relè step n° 1
Out relè step n° 2
Out relè step n° 3
Out relè step n° 4
Gradino n° 1
step N° 1 ON
step N° 2 OFF
step N° 3 OFF
step N° 4 OFF
37.2 PWM OUTPUT FOR FAN CONTROL
If FA01=3 and the fan control boards are connected to the PWM outputs (TF1 and2) take note of the FA03 ,FA04 parameters.
The fan start-up is always made at the maximum speed for the time set in FA03, then the speed follows the probe value.
The F04 delay, in micro – seconds, allows to adjust the output for each kind of the fan motor.
If FA01=3, when the compressor starts-up and the proportional regulation requires to turn off the fan (cut-off), if FA14≠0 the fan is forced
at the minimum speed for the time set in FA14 itself. if FA14=0 the function is disabled.
37.3
CONDENSING UNIT: COMMON OR SEPARATE
FA05 defines the condenser unit
Par. FA05 type of condenser
0= Common condenser unit.
1= Separate condenser units.
If Pa FA05= 0 the outputs, configured as condensing fan control, will follow the same regulation algorithm.
The regulation includes:
•
CHILLER mode: the maximum probe value compared between the temperature/pressure probe of the two circuits.
•
HEAT PUMP (no evaporator probe configured) the minimum probe value compared between the condenser
temperature/pressure probe of the two circuits.
•
HEAT PUMP (evaporator probe configured) the minimum probe value compared between the evaporator
temperature/pressure probe of the two circuits.
If par. FA05 = 1 and if the evaporating pressure probe are not configured, the fan output controls are separated and are controlled by
the condenser temperature/pressure probes. When the evaporator probes are configured, in heat pump the ventilation is controlled by
these transducers.
37.4 GRAPH: PROPORZIONAL REGULATION OF CONDENSER FANS
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37.5 GRAPH: ON / OFF REGULATION OF THE CONDENSER FAN IN CHILLER MODE
37.6 GRAPH: ON / OFF REGULATION OF THE CONDENSER FAN IN HEAT PUMP MODE
38 DEFROST CYCLE
The defrost cycle starts only if all these steps are determined:
ƒ
CF02=1 heat pump unit.
ƒ
DF01 <>0: defrost enabled.
ƒ
Unit working in heat pump mode and at least one compressor running.
ƒ
The condenser/evaporator probe is configured (per circuit) (if the evaporator probe/s is/are defined, the defrost cycled is
always controlled by it / them).
38.1 FORCED DEFROST
The function is enabled if the parameter dF19<>0. It allows to make a forced defrost cycle even if the dF09 timeout counting is not
expired, when the condensing/evaporating temperature/pressure is lower than dF20 setpoint for the dF19 time counting.
If during the dF19 time counting the condensing/evaporating temperature/pressure rises above the value dF20+dF21 (set+differential)
the function is disabled and the tF19 time is reloaded.
ATTENTION: the forced defrost is not related to the dF09 /dF06 delay times, therefore the forced defrost cycle, if condition are OK, is
immediately executed.
38.2 COMBINED DEFROST
st
nd
The function is enabled if one of the digital input is configured as NTC temperature for combine defrost of the 1 or 2 circuit. This
probe detects the external air temperature of the condenser (evaporator in heat pump). and its temperature value determines the start
and the stop of the defrost cycle.
Description of the functioning:
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The count-down to the defrost cycle starts when the temperature/pressure of the probe, configured as condensing/evaporating circuit 1
or 2 probe, is lower than dF02 parameter.
After the dF09 counting the instruments checks the temperature probe value (configured as combined defrost circuit 1 or 2) and if it is
lower than dF10 (temperature setpoint to start the defrost of the circuit1) or dF12 (temperature setpoint to start the defrost of the
circuit2) the defrost cycle starts otherwise the unit still runs in heat pump mode.
When the temperature decreases under the dF10 or dF12 values the defrost immediately start.
The defrost ends when the NTC combined defrost probe 1 or 2 increases over dF11 (circuit1) or dF13(circuit2).
If the defrost is enabled the display allows to show the external temperature on the top display and the labels dEF1 (circuit1) or
dEF2(circuit2) on the bottom display aof the circuit read-out function.
38.3 MANUAL DEFROST
The manual defrost key function is enabled if the unit is on with at least one compressor running.
The defrost start temperature/pressure of the controlled probe must be lower than dF02 setpoint value while if the combined defrost is
active the detected temperature must be lower than dF10 or dF12.
At this point by pushing SET + UP for more than 5 seconds the manual defrost starts.
ATTENTION: the manual defrost is not related to the dF09 /dF06 delay times, therefore the forced defrost cycle, if condition are OK,
is immediately executed for both circuits.
38.4 DEFROST START CONDITION WITH TWO CIRCUIT UNIT
Parameter involved: dF22
0= Independent
1= Only if both circuit conditions are satisfied
2= At least one circuit condition is satisfied
38.5 END OF THE DEFROST IN A TWO CIRCUITS WITH ONE CONDENSING FAN CONTROL UNIT
Parameter involved: dF23
0= Independent
1= Both circuits have reached the conditions to stop the defrost
2= At least one circuit has reached the end defrost condition
Table of defrost cycle for units with 2 circuits
Parameter
dF22=0
dF22=1
dF22=2
dF23=0
Yes
Yes
not possible (ACF1)
dF23=1
not possible (ACF1)
Yes
Yes
dF23=2
not possible (ACF1)
Yes
not possible (ACF1)
ATTENTION:
The configuration error ACF1 is displayed if the parameter value of dF22 and dF23 is not permitted.
For only one condensing unit the dF22 and dF23 values must be not equal to 0.
38.6 AUTOMATIC DEFROST PROCEDURE
Phase 1: time counting of dF09 (Interval defrost of the same circuit), unit is working in heat pump mode and at least one compressor is
running, the defrost led
start probe par. dF24)
is blinking , the condensing-evaporating temperature or pressure must be lower than dF02 value. (see
Functioning of the time counter:
1. The dF09 counter is reloaded se if the power supply fails, after a defrost cycle and after the unit changes from chiller to HP.
2. The dF09 counter is stopped if the last compressor turns off or if the pressure-temperature of the condensing-evaporating
probe becomes higher than dF02 parameter value.
3. The counter is decremented if the condensing or evaporating temperature-pressure probe value becomes lower than the
dF02 parameter value.
nd
2 phase: starts after the dF09 counting and check if the initial condition are satisfied to defrost
If one digital input si configured as “defrost end” of the circuit 1 or 2 and the contact is active, the unit waits until the contact is deactivated.
Probe configured as combined defrost NTC of circuit 1 or 2
st
nd
•
If the condensing or evaporating probe value of the 1 circuit is lower than dF10 and lower than dF12 for the 2 circuit the
rd
process step on the 3 phase.
•
Otherwise th unit waits until the probe values decrease under dF10 and dF12.
rd
If any of the probe is configured as combined defrost NTC the process steps on the 3 phase.
rd
When the circuit condition are satisfied to execute the 3 phase the display shows the dF1 (circuit1) and dF2 (circuit2 ) labels.
To enter the FASE 3 of the defrost the following conditions have to besatisfied:
rd
3 : inversion valve management Par. dF07 (OFF compressor before the defrost)
If dF07=0: the valve is activated without stopping any conmpressor and the defrost cycle is immediately activated. If the
thermoregulation or the dF14 parameter require more compressors the dF16 (on compressor delay during defrost cycle) is loaded.
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If df07 <> 0:
1.
2.
3.
4.
The compressors and the steps are turned off ( the compressor/s led is blinking, the defrost led
Start the dF07 / 2 (half time) time counting;
The valve is activated;
Start the dF07 / 2 (half time) time counting.
is on)
th
The 4 phase start condition: if the thermoregulation or the dF14 parameters require to turn ON more than one compressor for circuit,
the delay on time between the compressors depends on the parameter dF16.
The partialization/s: if configured always OFF during the defrost cycle, the compressor is always 100%.
•
if dF14=1 (all the circuit #1 resources are forced to ON): during the defrost cycle the compressors and steps of the circuit #1 are
ON while, if dF14=0 , compressors and steps are thermoregulated.
•
if dF15=1 (all the circuit #2 resources are forced to ON): during the defrost cycle the compressors and steps of the circuit #2 are
ON while, if dF15=0 , compressors and steps are thermoregulated.
th
4 PHASE: Defrost ON
Parameter involved: dF17 (condensing fan management)
ƒ
If dF17=0: The condensing fan are always off;
ƒ
If dF17=1: The condensing fans start if the condensing temperature-pressure value is higher than dF18, they will following the
normal chiller thermoregulation algorithm.
ATTENTION during the defrost cycle, both for chiller and the heat pump modes, the fan are controlled with the condensing probe even if
the evaporator probe is present and configured.
th
The 4 phase lasts at least for the dF04 time counting and can terminate for these conditions:
1.
2.
3.
If dF02=0:
st
ƒ
The combined NTC probe value is higher than dF11 of the 1 circuit;
nd
ƒ
The combined NTC probe value is higher than dF13 of the 2 circuit;
ƒ
When the condensing-temperature probe/s is/are higher than dF03 parameter value.
th
If dF02=2: the dF05 counting, maximum defrost timeout, is expired, step on 5 PHASE;
th
If dF02=3, if the end defrost digital input is deactivated, step on 5 PHASE.
th
5 PHASE: Inversion valve management Par. dF08 (OFF compressor after defrost cycle)
If dF08 = 0 the valve is turned without stopping the compressors, the defrost ends and all the regulation restarts, the defrost led
heat pump is off).
If dF08 <> 0:
1.
2.
3.
All the compressors and steps are turned off ( the compressor leds are blinking and the defrost led
Start the dF08 / 2 (half time) time counting;
Inversion valve de-activated
4.
Start the dF07 / 2 (half time) time counting; all the regulation restarts and the defrost led
in
is on)
in heat pump is off).
38.7 OTHER INFORMATION ABOUT THE DEFROST
FOR ALL THE UNIT WITH SAME DEFROST FOR THE TWO CIRCUITS
If the unit is configured with one condenser see parameter FA05:
0= common condenser;
1= separated condensers.
For FA05=0, common condenser, the defrost of the two circuits starts at the same time.
ATTENTION
rd
Before starting the 3 phase, the dF06 counting, time delay between two circuits defrost, must be expired.
ATTENTION
If the defrost ends because of the dF05 counting (Maximum defrost time) and the dF02 configuration or with the end defrost contact, the
bottom display will show, alternated with the normal measurement value, the label b1dF (circuit #1) or b2dF (circuit #2) labels to
indicate the defrost end alarms.
38.8 DEFROST PARAMETER DESCRIPTION
ATTENTION IT IS NOT POSSIBLE TO DO MODIFY THE dF PARAMETERS WHEN THE DEROST CYCLE IS RUNNING.
dF01 Defrost mode
0 = Defrost not enabled;
1 = Temperature/pressure defrost. The dF09, time delay to the defrost, starts when the temperature decreases under the dF02 setpoint.
The Defrost cycle end is determined by temperature/pressure.
2 = Time duration defrost. The dF09, time delay to the defrost, starts when the temperature decreases under the dF02 setpoint. (see
start probe par. dF24). The Defrost cycle end is determined by the maximum duration dF05.
3 = Defrost from digital input. The dF09, time delay to the defrost, starts when the temperature decreases under the dF02 setpoint. (see
start probe par. dF24) The Defrost cycle end is determined by the active digital input.
dF02 Temperature / pressure to begin the time counting to next defrost.
It allows to program a setpoint under which the dF09 starts counting.
dF03 Temperature / pressure to end the defrost.
It allows to program a temperature/pressure setpoint value to determines the end of the defrost when the probe value is rising.
dF04 Minimum duration of the defrost
It determines the minimum defrost time duration after starting the defrost itself even if the conditions are not more satisfied.
dF05 Maximum duration of the defrost
If dF01=2, it determines the maximum duration of the defrost and even if, for the other cases, the end defrost condition are still to be
satisfied.
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nd
dF06 defrost delay time between the 1 and the 2 circuit.
nd
After the interval dF09 determined by the defrost request of one of the circuits the other 2 circuits must wait also the time dF06 before
defrosting.
dF07 Compressor off time before the defrost (the led of the compressor is blinking)
After the dF09 delay and before activating the defrost, the compressors are stopped for the dF07 time.
Exactly in the middle of the dF07 time the 4-way valve is activated to equalise the pressure of the unit and when dF07 is completely
expired the compressors and the defrost can start.
This procedure does not respect the compressor on delay protection therefore the compressor is immediately turned off and then on. If
dF07 = 0 the compressor is not stopped and the 4-way valve is immediately turned.
dF08 Compressor off time after the defrost (the led of the compressor is blinking)
After the defrost cycle the compressors are stopped for the dF08 time.
Exactly in the middle of the dF07 time the 4-way valve is activated to equalise the pressure of the unit and to drain the external
exchange unit, when dF08 is completely expired the unit restart in heat pump mode.
This procedure does not respect the compressor on delay protection therefore the compressor is immediately turned off and then on. If
dF08 = 0 the compressor is not stopped and the 4-way valve is immediately turned.
DF09 Delay time to next defrost
It starts when the condensing/evaporating temperature/pressure probe value is lower than dF02 setpoint. This time is reloaded if the
power supply fails, after a defrost cycle or from a digital input request of defrost.
The time counting is interrupted if the compressor is turned off or if the temperature/pressure is higher then dF02.
dF10 Temperature setpoint to start a combined defrost of the circuit #1.
It allows to set a temperature value to determines the beginning of a combined defrost.
After the dF09 counting the NTC probe of the combined defrost of the circuit #1 is compared to the dF10 setpoint, if the value is lower
the defrost starts otherwise the unit runs in heat pump mode and when the temperature decreases under dF10 the defrost immediately
starts.
dF11 Temperature setpoint to end a combined defrost of the circuit #1.
It allows to set a temperature value to determine the end of a combined defrost.
When the NTC probe of the combined defrost of the circuit #1 becomes higher than dF10 setpoint the defrost cycle stops.
dF12 Temperature setpoint to start a combined defrost of the circuit #2.
It allows to set a temperature value to determine the beginning of a combined defrost.
After the dF09 counting the NTC probe of the combined defrost of the circuit #2 is compared to the dF12 setpoint, if the value is lower
the defrost starts otherwise the unit runs in heat pump mode and when the temperature decreases under dF12 the defrost immediately
starts.
dF13 Temperature setpoint to end a combined defrost of the circuit #2.
It allows to set a temperature value to determine the end of a combined defrost.
When the NTC probe of the combined defrost of the circuit #2 becomes higher than dF13 setpoint the defrost cycle stops.
dF14 All the resources on during the defrost of the circuit #1
0= Not enabled
1= Enabled
dF15 All the resources on during the defrost of the circuit #2
0= Not enabled
1= Enabled
dF16 Compressor step delay time in defrost.
dF17 Condensing fan control during defrost and dripping cycle
0= Not enabled
1 = Enabled in defrost
2= Enabled in defrost and in dripping time
If dF17 = 0: During the defrost the fan control is not active.
If dF17 = 1: when the condensing temperature/pressure value increases over dF18 the fans are turned on. the fan control is determined
by the same algorithm used in chiller mode.
If dF17 = 2: during the dripping time (dF08 <>0) the fan are turned on for the time duration set in dF08 .
dF18 Pressure / temperature setpoint to force the fans on during the defrost
When the temperature/pressure rises over this value the fan are turned on at the maximum speed.
dF19 Time delay before starting a forced defrost
It determines a delay time before starting the defrost cycle
dF20 Temperature / pressure setpoint to force a defrost
It determines a temperature/pressure setpoint under which the dF19 starts counting, when dF19 is expired if the temperature/pressure
is still lower than dF20 the defrost is immediately executed.
ATTENTION If during the dF19 counting the temperature rises over df20+dF21(differential) the process is aborted and the dF19 time
reloaded.
dF21 Forced defrost differential
dF22 defrost mode for unit with two circuits
Operative mode:
0= Independent
1= The condition are satisfied in both circuits
2= At least one circuit has reached the start condition
dF23 It determines the end of the defrost for unit having two circuit and common condensing ventilation
Operative mode:
0= Independent
1= The end defrost condition are satisfied In both circuits
2= At least one circuit has reached the end defrost condition
dF24 Start / stop defrost probe
Start / stop defrost from analog input
0= start and stop with condenser temperatur / pressure probe
1= start with evaporator pressure probe / stop with condenser temperatur / pressure probe
2= start with condenser temperatur / pressure probe / stop with evaporator pressure probe
3= start and stop with evaporator pressure probe
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39 RECOVERY
The recovery function is Enabled if:
1 Par. rC01 not equal to 0.
2 Chiller running mode.
3 The recovery key is pushed to enable the function and the recovery led is on.
4 The condensing temperature / pressure is lower than set rC06 –rC07 (differential).
5 The input/output resources are configured
6 The remote recovery digital input is activated.
The recovery function is NOT Enabled if:
1 Par. rC01 = 0.
2 Heat pump running mode, remote OFF or stand by.
3 The recovery key is pushed to disable the function and the recovery led is on
4 The condensing temperature / pressure is higher than set rC06.
5 The input/output resources are not properly configured (alarm ACF9).
6 The remote recovery digital input is not activated.
NECESSARY RESOURCE FOR THE RECOVERY OF THE CIRCUIT #1
Output relay configured as valve for recovery circuit #1.
Remote recovery digital input for circuit #1.
Condenser probe of the circuit #1.
NECESSARY RESOURCE FOR THE RECOVERY OF THE CIRCUIT #2
Output relay configured as valve for recovery circuit #2.
Remote recovery digital input for circuit #2
Condenser probe of the circuit #2.
39.1 UNIT WITH TWO SEPARATE HYDRAULIC CIRCUITS
FUNCTIONING
Par. rC01 = 1 unit with two separate circuits:
CIRCUIT # 1
With the recovery function enabled, the unit running in chiller and with the temperature/pressure proper condition, the unit can start the
recovery of the first circuit if the corresponding digital input is active. When the digital input is active the relay of the valve for the
recovery of the first circuit is activated.
CIRCUIT # 2
With the recovery function enabled, the unit running in chiller and with the temperature/pressure proper condition, the unit can start the
recovery of the second circuit if the corresponding digital input is active. When the digital input is active the relay of the valve for the
recovery of the second circuit is activated.
After starting the function, if the digital input becomes not active the recovery function runs for the time set in rC04 before stoppping..
Between the end and the next recovery function the instrument waits the time set in the parameter rC05 even if the digital input is
activated again.
RECOVERY START AND STOP OF THE TWO CIRCUITS CONFIGURED WITH CAPACITY STEPS
During the start and the stop of the fuction the time delay rC02 and rC03 are not counted and the valve is immediately turned on or off.
RECOVERY START OF THE TWO CIRCUITS CONFIGURED WITH MORE THAN ONE CAPACITY STEP
Circuits 1 and 2 configured with more than one step of power (eg each circuit with three compressors), if the thermoregulation requires
to turn on one or more resources and the recovery is activated from the digital input the unit turns on only one step and then waits the
rC02 delay (this delay keep off all the other steps after the recovery is started). After the delay the recovery valve is turned on and, after
the rC03 time (this delay keeps off all the other steps after the recovery is started), the other resources if necessary are turned on.
RECOVERY STOP OF THE TWO CIRCUITS CONFIGURED WITH MORE THAN ONE CAPACITY STEP
Circuits 1 and 2 configured with more than one step of power (eg each circuit with three compressors). After the rC04 time delay
(minimum on time of the recovery function when activated) if the digital input of the recovery is not active the units stops the new
resources for the time set in rC02. After this delay the recovery valve is turned off and the regulation restarts with its normal running
condition.
RECOVERY START OF THE TWO CIRCUITS WITH ALL THE CAPACITY STEPS ACTIVATED
When the system is running with 100% (eg all the three compressor of a circuit are on) of power and the digital input start the recovery
function: before turning on the recovery valve one of the step (depending on the time running hours), is turned off for the time set in
rC02. After rC02 the recovery valve is turned on. Then, after the rC03 time (this delay keeps off all the other steps after the recovery is
started) the resource forced off if necessary is turned on again.
RECOVERY STOP OF THE TWO CIRCUITS WITH ALL THE CAPACITY STEPS ACTIVATED
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When the system is running with 100% (eg all the three compressor of a circuit are on) of power and the digital input stop the recovery
function: after the rC04 time delay (minimum on time of the recovery function when activated) and before turning off the recovery valve,
one of the step is turned off for the time set in rC02. When the delay is expired the unit turns off the recovery valve and and the
regulation restarts with its normal running condition.
ATTENTION:
For both the circuits: when the compressor are off because of the thermoregulation and the digital input of the recovery function is
active, the recovery valve is disabled.
39.2 UNIT WITH TWO HYDRAULIC CIRCUIT WORKING IN PARALLEL
FUNCTIONING
Par. rC01 = 2 unit with two circuits working in parallel:
The recovery function from the digital inputs is divided in two steps:
UNIT WITH ONE CIRCUIT RUNNING
If the recovery function is enabled and if the condenser temperature/pressure condition are whithin the limits that circuit starts the
recovery when one of the digital inputs is activated. With active digital input the recovery valve of the circuit is on.
UNIT WITH BOTH THE CIRCUITS RUNNING
If recovery function is enabled, if the condenser temperature/pressure condition are whithin the limits the circuit #1 starts the recovery
(recovery valve #1 on) when the digital input #1 is activated and the circuit #2 starts the recovery (recovery valve #2 on) when the digital
input #2 is activated.
After starting, the recovery function will run at least for the time set in parameter rC04 (minimum time with recovery on).
Between the end of a recovery cycle and the next start the unit waits the time set in Par. rC05 before starting it again.
RECOVERY START–STOP OF THE CIRCUITS 1 AND 2 CONFIGURED WITH ONE STEP EACH
Both for recovery start or stop, the delay time rC02 and rC03 are not counted and the recovery valve is immediately turned on or off.
RECOVERY START OF THE TWO CIRCUITS CONFIGURED WITH MORE THAN ONE CAPACITY STEP
Circuits 1 and 2 configured with more than one step of power (eg each circuit with three compressors), if the thermoregulation requires
to turn on one or more resources and the recovery is activated from the digital input the unit turns on only one step and then waits the
rC02 delay (this delay keep off all the other steps after the recovery is started). After the delay the recovery valve is turned on and, after
the rC03 time (this delay keeps off all the other steps after the recovery is started), the other resources if necessary are turned on.
RECOVERY STOP OF THE TWO CIRCUITS CONFIGURED WITH MORE THAN ONE CAPACITY STEP
Circuits 1 and 2 configured with more than one step of power (eg each circuit with three compressors). After the rC04 time delay
(minimum on time of the recovery function when activated) if the digital input of the recovery is not active the units stops the new
resources for the time set in rC02. After this delay the recovery valve is turned off and the regulation restarts with its normal running
condition.
RECOVERY START OF THE TWO CIRCUITS WITH ALL THE CAPACITY STEPS ACTIVATED
When the system is running with 100% (eg all the three compressor of a circuit are on) of power and the digital input start the recovery
function: before turning on the recovery valve one of the step (depending on the time running hours), is turned off for the time set in
rC02. After rC02 the recovery valve is turned on. Then, after the rC03 time (this delay keeps off all the other steps after the recovery is
started) the resource forced off if necessary is turned on again.
RECOVERY STOP OF THE TWO CIRCUITS WITH ALL THE CAPACITY STEPS ACTIVATED
When the system is running with 100% (eg all the three compressor of a circuit are on) of power and the digital input stop the recovery
function: after the rC04 time delay (minimum on time of the recovery function when activated) and before turning off the recovery valve,
one of the step is turned off for the time set in rC02. When the delay is expired the unit turns off the recovery valve and and the
regulation restarts with its normal running condition.
ATTENTION:
For both the circuits: when the compressor are off because of the thermoregulation and the digital input of the recovery function is
active, the recovery valve is disabled.
40 CONDENSER TEMPERAURE / PRESSURE CONDITION TO ENABLE/DISABLE
THE RECOVERY CYCLE
The recovery can be disabled depending on the condenser condition to avoid a possible high pressure alarm. The function can be
executed by programming the analogue input as condenser transducer 1 or 2 (Par CF07=0 temperature control or CF07= 1 pewssure
control).
FUNCTIONING
40.1 RECOVERY DISABLED
With the recovery function is activated: if the temperature/pressure is equal or higher than the set rC06 (limit of the recovery cycle) the
recovery cycle, of the circuit detected by that transducer, is disabled. When the recovery is disabled the bottom display shows the
following blinking icons: b1rC = for circuit 1, b2rC = for circuit 2.
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40.2 RECOVERY ENABLED
If the temperaTure/pressure decreases under the set rC06-rC07 (differential) the recovery cycle, of the circuit detected by that
transducer , is anabled again.
40.3 NOTE ABOUT RECOVERY ENABLED/DISABLED
To avoid long periodof time with recovery function disabled and the temperature/pressure within the range rC06-rC07, the units starts
counting the delay set in rC08. After this delay if the decreasing temperature is still within the rC06-rC07 range, the recovery cycle is
forced on again.
41 MESSAGES - ALARM CODES
the alarm codes are defined by letters and numbers:.
Alarm typology:
•
A = alarm of the unit
•
b = alarm of the circuit
•
C = alarm of the compressor
41.1 AP1 - AP2 - AP3 - AP4 - AP5 - AP6 - AP7 - AP8 - AP9 - AP10 - AP11 - AP12
PROBE FAILURE
Label on display
Reason
Reset
Restart
Icon
Action
AP1 = PB1 probe alarm…AP10 = PB10 regulator probe alarm
AP11 keyboard N° 1 probe alarm
AP12 keyboard N° 2 probe alarm
Probe configured but the read-out is not in the range
Probe not configured or probe in the right range
Automatic
blinking
Alarm Relay + and buzzer on
41.2 AEFL: EVAPORATOR FLOW ALARM (DIFFERENTIAL PRESSURE SWITCH)
Label o the display
AEFL evaporator flow alarm
Origin
Available only for air/water - water/water units
Digital input active for the time set in AL15 after the water pump is on and, after the digital input
itself is activated, for the time set in AL17.
Digital input not active for the time AL18.
Reset
Restart
Icon
Action
Automatic – Manual after AL16 events per hours (Reset procedure in Menu function).
Blinking
Alarm Relay + and buzzer on only during normal running conditions.
41.3 ACFL: CONDENSER FLOW ALARM (DIFFERENTIAL PRESSURE SWITCH)
Label o the display
Origin
ACFL condenser flow alarm
Reset
Digital input not active for the time AL18.
Restart
Icon
Automatic – Manual after AL16 events per hours (Reset procedure in Menu function).
Action
Available only for air/water - water/water units
Digital input active for the time set in AL15 after the water pump is on and, after the digital input
itself is activated, for the time set in AL17.
Alarm not enable if AL14=0
Alarm enabled in chiller only if AL14=1
Alarm enabled in heat pump only if AL14=2
Alarm enabled in chiller and heat pump if AL14=3
Blinking
Alarm Relay + and buzzer on only during normal running conditions.
ATTENTION
The alarm relay and the buzzer are activated only if the alarm appears during normal running conditions.
When the temperature setpoint has been reached and CO16/CO21= 2, the icon
blinks without alarm.
NOTE ABOUT THE FLOW ALARM
CO16 / CO21=0 Water pump not enabled.
The alarm is managed only if one digital input is configured as flow switch, the restart is always automatic.
CO16 / CO21=1 Water pump with continuous control.
The alarm is managed only if one digital input is configured as flow switch, the restart is always automatic, in stand–by or remote
OFF ( pump off), it becomes manual after AL16 events per hour.
In chiller or heat pump only. During the functioning of the unit any flow alarm stop the loads described in the table, the water pump
follow its regulation algorithm and is turned off, after AL16 events per hours it is completely locked.
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CO16 / CO21=2 Compressor on – pump on
The alarm is managed only if one digital input is configured as flow switch, the restart is always automatic, in stand–by or remote
OFF ( pump off), it becomes manual after AL16 events per hour.
During the functioning of the unit any flow alarm stop the loads described in the table, the water pump follow its regulation algorithm and
is turned off, after AL16 events per hours it is completely locked.
MANUAL RESTART OF THE FLOW ALARM
After AL16 events/hour it is necessary to enter the function Menu to reset the alarm itself. The alarm message DOES NOT DISAPPEAR
if the alarm condition is still on. The water pump, if configured, can start and the alarm is by-passed for AL18 seconds.
AL15 Alarm flow delay after on pump.
When the water pump starts the AL15 delay stops any flow alarm to reach the normal flow condition.
AL16 Maximum number of flow alarm events per hour.
It determines maximum number of flow alarm events per hour before change the unit restart from automatic to manual. when the alarm
becomes manual the water pump is locked.
ATTENTION
With air/water or water/water units and CF01=1,2 the minimum number of events per hour is 1.
AL17 Active flow input duration
Within this time the flow alarm must be active and after AL17 is expired the alarm is signalled. The counter starts after AL15 and allows
to filter the improvise flow reduction or the possible bubbles of air.
AL18 Not active flow input duration
Within this time the flow alarm must be not active and, after this time, the previous alarm is automatically reset (if automatic) or, if
manual, the unit can be restarted.
41.4 ATSF: OVERLOAD ALARM OF THE SUPPLY FAN
Label o the display
Origin
Reset
Restart
Icon
Action
AtSF: Overload alarm of the supply fan
CF01=0: After on fan when the ID is activated for AL15 time. After on pump when the ID is
activated for AL17.
Digital input not active for AL18 time
Automatic – Manual after AL16 events/hour (Reset procedure in Menu function).
Blinking
Alarm relay + buzzer ON
MANUAL RESET OF THE OVERLOAD ALARM OF THE SUPPLY FAN
After AL16 events/hour it is necessary to restart manually the unit (reset procedure in Function Menu with blinking label rSt if the alarm
is not active from Al18otherwise label NO (can not be reset)). Push SET key to reset the alarm, the label disappears, the fan restarts
and the alarm is by-passed for AL15 time delay to allow the start-up if within this interval the alarm does not appear again.
41.5 ATE1 - ATE2 EVAPORATOR PUMP OVERLOAD ALARM
Label o the display
Origin
Reset
Restart
Icona
Action
AtE1 (overload pump alarm of evaporator 1)
AtE2 (overload pump alarm of support evaporator 2)
Active ID when it is configured as overload pump of evaporator 1
Active ID when it is configured as overload pump of support evaporator 2.
With active digital input
Manual (reset procedure in function menu).
Blinking
Alarm relay + buzzer ON
41.6 ATC1 - ATC2 CONDENSER/RECOVERY PUMP OVERLOAD ALARM
Label o the display
Origin
Reset
Restart
Icona
Action
AtC1 (overload pump alarm of condenser 1)
AtC2 (overload pump alarm of support condenser 2)
Active ID when it is configured as overload pump of condenser 1
Active ID when it is configured as overload pump of condenser 2.
With active digital input
Manual (reset procedure in function menu).
Blinking
Alarm relay + buzzer ON
41.7 AEE EEPROM ALARM
Label o the display
Origin
Reset
Restart
Icona
Action
AEE
Wrong eeprom data
------Manual
Blinking
Alarm relay + buzzer ON
Pg.84/106
1592015300 User manual iCHILL 200 L GB
r1.3
09/09/2005
41.8 AFR: POWER SUPPLY FREQUENCY ALARM
Label on the display
Origin
Reset
Restart
Icona
Action
AFr (Line frequency alarm)
The power supply frequency is not equal to the Par. CF81 + tolerance
Ferquency control parameter adjusted, disabled CF81 = 2, frequency within the tolerance
Automatic
Blinking
Alarm relay + buzzer ON
41.9 ALOC: GENERIC ALARM WITH STOP REGULATION
Label on the display
Origin
Reset
Restart
Icona
Action
REGULATION
Alarm
Other loads
ALOC: generic alarm from digital input with stop regulation
Digital input configured as generic alarm with stop regulation active after the delay in Par. AL43
Digital input configured as generic alarm with stop regulation not active after the delay in Par.
AL44
Automatic – It becomes manual after AL42 events/hour (procedura di reset in menù funzioni).
Logged only if manuale
Blinking
Alarm relay + buzzer ON
Alarm relay + buzzer ON
OFF
ATTENTION
If during AL44 the alarm stop and start again the AL44 time delay is reloaded.
41.10 ACF1 - ACF2 - ACF3 - ACF4 - ACF5 - ACF6 - ACF7 - ACF8 - ACF9
CONFIGURATION ALARM OF THE UNIT
Significato label display
ACF1
•
Heat pump unit without 4-way valve not configured
•
Defrost wrong parameters (dF22/23)
ACF2
•
Condensing control without probe configuration.
(one probe per circuit with 2 separate circuits, at least 1 probe for common cond.)
•
Fan proportional control algorithm not respected:
FA09 + FA11 + FA12 < FA10
FA12 < FA13
FA07 < FA15 < FA08
•
Fan proportional control algorithm not respected and pump enabled:
FA18 + FA21 + FA20 < FA19
FA21 < FA22
FA16 < FA23 < FA17
•
Fan ON - OFF regulation algorithm not respected:
FA09 < FA10
•
Fan ON - OFF regulation algorithm not respected and pump enabled:
FA18 < FA19
•
With pump and defrost enabled there are no evaporating/condensing probes.
•
With triac regulation (CF68, CF69 = 2) the power supply configuration is Vcc (CF83 = 0)
ACF3
•
Two digital/ analogue inputs configured with the same function or without the necessary
resources (es. compressor # 3 overload but compressor#3 relay not configured)
ACF4
•
CF79 = 1 and its digital input not configured or CF79 = 2 and no external temperature
probe configured.
ACF5
Circuito # 2 not configured but at least one of its resources are present (relay: solenoid pumpdown, heaters, inversion valve, fan condensing ON - OFF, recovery, auxilairy)
1592015300 User manual iCHILL 200 L GB
Causa attivazione
Reset
Riarmo
Icona
Azione
r1.3
09/09/2005
ACF6
•
The total number of compressor of the 2 circuits ( CF04 + CF05 ) is:
√
>6
√
> 4 with no direct compressor start-up (CO10 ≠ 0) or the number of steps is ≠ 0
(CF06),
√
> 2 and the intermittent valve is configurated with ON (CO08) and OFF (CO09 ) ≠ 0
•
Pump-down function but at least in one circuit
√
The pump-down solenoid relay is not present
√
No pump-down pressure switch or evaporating probe when
‰ the pump-down is enabled with unit in start
Or
‰ No low pressure switch configurated.
•
The compressor configuration with CF04 and CF05 but not the relay outputs:
√
Main
√
Intermittent valve when enabled with the ON / OFF time, CO08 / CO09 ≠ 0
√
When the by-pass time ≠ 0 and there is no partialization or by-pass valve
configured
√
Motor part_2 / centre of the star with part-winding or star-delta
√
The necessary step valve configurated
•
One relay is configured
√
Too much compressors
√
Intermittent valve when ON / OFF time CO08 / CO09 ≠ 0
√
By-pass gas when the by-pass = 0
√
Compressor Motor coil 2 / center of the star with direct compressor start-up
•
Too much step valve
ACF7
Evaporator pump
√
Enabled (CO16 ≠ 0) but the relay is not configured
√
Not enabled (CO16 = 0) but the relay is configured
Condenser pump
√
Enabled (CO21 ≠ 0) but the relay is not configured
√
Not enabled (CO21 = 0) but the relay is configured
ACF8
•
Thermoregulation probe
9 The thermoregulation probe (in chiller with ST09, in heat pump when enabled with ST10)
is not properly configurated (it does not exist or it is not a NTC)
ACF9
•
Recovery cycle enabled Par. rC01 ≠ 0
9 only some of these resources are configured: condensing probe, recovery digital input,
recovery relay, or no outputd is configured.
Programmazione errata
Programmazione corretta
Automatico
lampeggiante
Relè allarme + buzzer attivato
41.11 ARTF CLOCK FAILURE
Label o the display
Origin
Reset
Restart
Icona
Action
Regulation
Loads
Energy saving
ArtF (clock failure)
Clock chip failure
Change clock chipset
Manual in function menu
Blinking
Alarm relay + buzzer ON
Not changed
Disabled if based on RTC
Pg.86/106
1592015300 User manual iCHILL 200 L GB
Unit ON/OFF
r1.3
09/09/2005
Disabled if based on RTC
41.12 ARTC CLOCK ALARM
Label o the display
Origin
Reset
Restart
Icona
Action
Regulation
Loads
Energy saving
Unit ON/OFF
ArtC (clock alarm)
Wrong setting
Clock adjusted
Manual in function menu
Blinking
Alarm relay + buzzer ON
Not changed
Disabled if based on RTC
Disabled if based on RTC
41.13 AEUN: UNLOADING ALARM FROM HIGH TEMPERATURE OF THE EVAPORATOR WATER
INLET
Label o the display
Origin
Reset
Restart
Icon
Action
AEUn Unload signalling from evaporator
During normal running condition when the temperature/pressure of evaporator water inlet is higher
than CO40 setpoint for the CO42 time delay.
ƒ
If the water temperature is lower than CO39 –CO41 (differential)
ƒ
Da funzione unloading inserita dopo il tempo impostato Par. CO43
Automatic
Blinkin g
Alarm relay + buzzer OFF
41.14 ALTI: LOW AIR AMBIENT TEMPERATURE (AIR / AIR UNIT ONLY)
Label o the display
Origin
Reset
Restart
Icon
Action
ALti (low temperature value of the evaporator air inlet)
Chiller mode: CF01=0 and evaporator inlet NTC probe lower than AL26 for AL28 seconds.
Heat pump: CF01=0 and evaporator inlet NTC probe lower than lower than AL33 forAL36 seconds
In stand-by or remote OFF: the evaporator inlet NTC probe lower than the lowest value compared
between AL28 and AL36.
Chiller: evaporator inlet NTC probe higher than AL26 + AL27(differential).
Heat pump: evaporator inlet NTC probe higher than AL33 + AL34 (differential).
n stand-by or remote OFF: the evaporator inlet NTC probe higher than AL26+AL27 or AL33+AL34.
Automatic
Blinking
Alarm Relay + and buzzer on
41.15 AEP1 - AEP2 EVAPORATOR PUMPS / SUPPLY FAN MAINTENANCE REQUEST
Label description
Activation
Reset
Restart
Icon
Actions
REGULATIONS
Actions
Loads
AEP1 (Main water pump)
AEP2 (Support water pump)
Load running hours > counter setpoint for that load
Running hour reset (Hour label in Menu function)
Manual
blinking
Alarm relay and buzzer activated
Only signalling
Not modified
The parameters CO34 / CO35 define the hour set counters for the condenser water pump / Support water pump.
They establish the load running hours limit of the pump/s or the supply fan to give a maintenance signalling. If one of these parameters
is equal to 0 the maintenance signalling of that load is disabled but the running hours counter remains active.
1592015300 User manual iCHILL 200 L GB
r1.3
09/09/2005
41.16 ACP1 - ACP12 CONDENSER PUMPS MAINTENANCE REQUEST
Label description
Activation
Reset
Restart
Icon
Actions
REGULATION
Actions
Loads
ACP1 (main water pump)
ACP2 (support water pump)
Load running hours > counter setpoint for that load
Running hour reset (Hour label in Menu function)
Manual
blinking
Alarm relay and buzzer activated
Only signalling
Not modified
41.17 B1HP - B2HP HIGH PRESSURE SWITCH CIRCUIT 1 AND 2
Label on display
Reason
Reset
Restart
Icon
Action
Regulation
Condensing fan
41.18
B1LP - B2LP
Label o the display
Origin
Reset
Restart
Icon
Action
b1HP (high pressure switch circuit #1)
b2HP (high pressure switch circuit #2)
The unit is running and the digital input of the high pressure switch is active
Digital input not active
Manual (Reset procedure in Menu function)
blinking
Alarm Relay + and buzzer on
Maximum speed for 60 seconds
LOW TEMPERATURE / LOW CONDENSING PRESSURE OF THE CIRCUIT
b1lP (low pressure digital input of the circuit 1)
b2lP (low pressure digital input of the circuit 2)
When the condensing probe value is lower than AL03 setpoint if:
•
In chiller or heat pump
•
Stand-by o remote OFF when AL08 = 1
•
In defrost when AL06=1
The alarm is not signalled if:
•
In defrost ,for the time AL07, when the 4-way valve is turned on.
•
For the time set in AL01 after turning on the compressor.
When the condensing probe temperature is higher than AL03 + AL04 (differential)
Automatic– Manual after AL05 events per hour (Reset procedure in Menu function).
Blinking
Alarm Relay + and buzzer on
41.19 B1AC - B2AC - B1AC - B2AC ANTIFREEZE
(AIR / AIR UNIT IN CHILLER MODE)
Label o the display
Origin
Reset
Restart
Icon
Action
ALARM
/ LOW
OUTLET TEMPERATURE
b1AC (anti-freeze alarm of the circuit #1 in chiller)
b2AC (anti-freeze alarm of the circuit #2 in chiller)
b1Ac (anti-freeze alarm signalling of the circuit #1 in chiller)
b2Ac (anti-freeze alarm signalling of the circuit #2 in chiller)
Both the labels are displayed when the alarm is coming from the evaporator inlet probe or
evaporator common outlet probe or when there is only one digital input configured.
Normal conditions, stand-by, remote OFF: when the anti-freeze probe value is lower than AL26 for
AL28 seconds.
With the anti-freeze digital input is active.
When the anti-freeze probe value is higher than A26+ AL27(differential)
With the anti-freeze digital input is active.
Automatic – Manual after AL29 events per hours (Reset procedure in Menu function).
Blinking
If AL30=0 only the compressors are turned off and than display shows b1Ac b2Ac, the buzzer and
the alarm relay are not activated.
If AL30=0 only the compressors are turned off and than display shows b1Ac b2Ac, the buzzer and
the alarm relay are activated.
If the alarm comes from the digital input also the anti-freeze heaters are turned on.
Pg.88/106
1592015300 User manual iCHILL 200 L GB
41.20
B1AH
- B2AH ANTI-FREEZE
ALARM
r1.3
/ LOW
09/09/2005
OUTLET AIR TEMPERAURE(AIR/AIR UNIT
ONLY) ON HEAT PUMP MODE
Label o the display
b1AH (anti-freeze alarm of the circuit #1 in heat pump)
b2AH (anti-freeze alarm of the circuit #2 in heat pump)
b1Ah (anti-freeze alarm signalling of the circuit #1 in heat pump)
b2Ah (anti-freeze alarm signalling of the circuit #2 in heat pump)
Both the labels are displayed when the alarm is coming from the evaporator inlet probe or
evaporator common outlet probe or when there is only one digital input configured.
Normal conditions, stand-by, remote OFF: when the anti-freeze probe value is lower than AL33 for
AL36 seconds.
With the anti-freeze digital input is active.
When the anti-freeze probe value is higher than AL33 + AL34(differenziale).
With digital input ont active
Automatic – Manual after AL37 events per hour (Reset procedure in Menu function).
Origin
Reset
Restart
Icon
Blinking
If AL38=0 only the compressors are turned off and than display shows b1Ah - b2Ah, the buzzer
and the alarm relay are not activated.
If AL38=0 only the compressors are turned off and than display shows b1AH - b2AH, the buzzer
and the alarm relay are activated.
If the alarm comes from the digital input also the anti-freeze heaters are turned on.
Action
Attention
Par. AL35 anti-freeze alarm delay (low outlet air temperature air/air unit) when the unit starts in heat pump mode.
In stand-by or remote OFF: there is an anti-freeze alarm and the time delay in AL35<>0, if the unit is manually turned on in heat pump
from keyboard or remote input, the alarm is reset so the unit can start at least for the time set in AL35 in order to heat the water or the
air. After the AL35 delay if the anti-freeze probe is still lower than AL33 setpoint for AL36 seconds the unit is locked again with an antifreeze alarm.
41.21 B1HP CIRCUIT
B2HP
Label o the display
HIGH
PRESSURE
/ CONDENSING HIGH
TEMPERATURE OF THE
b1hP (high pressure digital input of the circuit #1)
b2hP (high pressure digital input of the circuit #2)
In chiller or heat pump, if the condensing probe is higher than AL09 setpoint.
If the condensing probe value is lower than AL09 –AL10 (differential)
Manual (Reset procedure in Menu function).
Origin
Reset
Restart
Icon
Action
Blinking
Alarm Relay + and buzzer on
41.22
B1LP - B2LP LOW PRESSURE SWITCH CIRCUIT #1 OR 2
Label o the display
b1LP (low pressure switch circuit #1)
b2LP (low pressure switch circuit #2)
•
With the digital input is active
•
If AL08=1, also in stand-by or remote OFF, when the low pressure switch input is active.
•
In defrost if AL06=1 when the compressor low pressure switch input is active.
The alarm is not signalled if :
•
In defrost for the time AL07 when the 4-way valve is activated.
•
During the AL01 delay after turning on the compressor.
Digital input not active
Automatic - Manual after AL02 events per hour (Reset procedure in Menu function)
Origin
Reset
Restart
Icon
Action
Blinking
Alarm Relay + and buzzer on
41.23
B1LP
-
B2LP
LOW
EVAPORATING PRESSURE OF THE CIRCUIT
TRANSDUCERS ONLY)
Label o the display
b1lP (low evaporator pressure from analogue input #1)
b2lP (low evaporator pressure from analogue input #2)
(WITH
PRESSURE
1592015300 User manual iCHILL 200 L GB
r1.3
09/09/2005
The alarm is activated when at least one of the probes , configured as evaporating control, is
lower than AL03 setpoint if:
•
In chiller or heat pump mode;
•
Stand-by or remote OFF when AL08 = 1
•
In defrost when AL06=1
The alarm is not signalled if:
•
In defrost ,for the time AL07, when the 4-way valve is turned on.
•
For the time set in AL01 after turning on the compressor.
When the condensing probe temperature is higher than AL03 + AL04 (differential)
Automatic– Manual after AL05 events per hour (Reset procedure in Menu function).
Origin
Reset
Restart
Icon
Action
Blinking
Alarm Relay + and buzzer on
ATTENTION When the pressure transducers are configured the low pressure alarms are related only to transducer values.
41.24
B1TF- B2TF CONDENSER FAN OVERLOAD ALARM
Label o the display
Origin
Reset
Restart
Icon
Action
b1tF (Condenser fan overload alarm of the circuit #1)
b2tF (Condenser fan overload alarm of the circuit #2)
When the digital input is active
When the digital input is not active
Manual (reset from the function menu)
Blinking
Alarm relay + buzzer ON
41.25 C1HP - C2HP - C3HP - C4HP - C5HP - C6HP
COMPRESSOR HIGH PRESSURE
ALARMS
Label o the display
Origin
Reset
Restart
Icon
Action
C1HP ( compressor high pressure alarm 1) – … C6HP (compressor high pressure alarm 6)
The unit is running and the digital input of the compressor high pressure switch is active
Digital input not active
Manual (Reset procedure in Menu function)
blinking
Alarm Relay + and buzzer on
41.26 C1OP - C2OP - C3OP - C4OP - C5OP - C6OP - PRESSURE
SWITCH ALARM
/
COMPRESSOR OIL
Label o the display
Origin
Reset
Restart
Icon
Action
C1oP (Compressor pressure switch #1) … C6oP (Compressor pressure switch #6)
The alarm is not signalled: during the AL01 delay after turning on the compressor, during the AL12
delay that starts after the AL11 delay when the unit is properly running
Digital input not active
Automatic - Manual after AL013 events per hour (Reset procedure in Menu function)
Blinking
Alarm Relay + and buzzer on
OIL ALARM FROM PRESSURESTAT SWITCH OR OIL LEVEL SWITCH (screw)
Occasionally it is possible to find both the safety systems, the delay, the active input duration and the number of events per hour allow
to set-up both the protections.
Par. AL11 Oil alarm delay after on compressor.
It allows to set a time delay before signalling the oil or the oil level switch alarms after the on compressor.
Par. AL12 Duration of the pressure switch / oil level switch in normal operating conditions.
Duration of the oil level switch activation during normal running condition.
It allows to set the time delay before signalling the alarm. AL11 defines the delay counting, it helps to override the low pressure or the
low oil level determined, for example, by a new partialization step of the compressor itself.
Par. AL13 Maximum number of alarm events per hour.
It determs the maximum number of alarm events before switching the restart from automatic to manual.
41.27 C1DT - C2DT - C3DT - C4DT - C5DT - C6DT HIGH
COMPRESSOR DISCHARGE
TEMPERATURE ALARM
Label o the display
C1dt (High discharge temperature of the compressor #1) -…C6dt (High discharge temperature of
the compressor #6)
Pg.90/106
1592015300 User manual iCHILL 200 L GB
r1.3
09/09/2005
The compressor discharge temperature is higher than AL39 setpoint.
ATTENTION
The display resolution is 0.1°C until the read-out is 99.9, over 100°C it is 1°C.
If the probe value of the high discharge temperature is lower than “AL39 - AL40 (differential)”
Automatic. Manual when there are AL41 per hour (Reset procedure in Menu function).
Origin
Reset
Restart
Icon
Blinking
Alarm Relay + and buzzer on
Action
41.28 C1TR - C2TR - C3TR - C4TR - C5TR - C6TR COMPRESSOR OVERLOAD ALARM
Label o the display
Origin
C1tr (Compressor #1 overload alarm) -…C6tr (Compressor #1 overload alarm 6)
With active digital input
The alarm is not detected within the AL19 time delay after the on compressor
When the digital input is not active
Manual after AL20 events/hour, to reset the alarm enter the function menu under cOtr.
Reset
Restart
Icon
Blinking
Alarm relay + buzzer ON
If AL47=0 or 1: OFF
If AL47=0: it follows its regulation. If AL47=1: OFF
Action
Compressor involved
Compressor not involved
ATTENTION
The parameter AL47 determines the functioning of the overload alarm of the compressors.
If AL47 = 0 single compressor locked when its digital input protection is active, on the display the corresponding alarm message.
If AL47 = 1 all the circuit of the compressor is locked when one digital input protection is active, on the display the corresponding alarm
message.
41.29
B1DF – B2DF
DEFROST ALARM
Label o the display
b1dF (Defrost alarm of the circuit #1)
b2dF (Defrost alarm of the circuit #2)
Only in defrost if DF01 = 1,3 (defrost en temperature/pressure or external contact): when the
defrost ends after the DF05 timeout.
ƒ
Stand - by or remote ON-OFF.
ƒ
Next defrost ends for temperature/pressure.
Automatic if next defrost ends for temperature/pressure, otherwise manual.
Origin
Reset
Restart
Icon
Blinking
Alarm relay + buzzer OFF
Action
41.30
B1CU
–
B2CU
UNLOADING
DISABLED FROM
HIGH
CONDENSING TEMPERATURE
/
PRESSURE IN CHILLER
Label o the display
Origin
Reset
Restart
Icon
Action
b1CU (unloading high temperature from condenser of the circuit # 1)
b2CU (unloading high temperature from condenser of the circuit # 2)
When the temperature/pressure of condenser probe control is higher then CO44
ƒ
When the temperature/pressure of condenser probe is lower than CO44 –CO45
(differential)
ƒ
After unloading is activated and after Par. CO47
Automatic
Blinkin
Alarm relay + buzzer OFF
41.31 B1CU – B2CU: UNLOADING
HEAT PUMP
Label o the display
Origin
Reset
Restart
Icon
Action
FROM LOW CONDENSING TEMPERATURE
/
PRESSURE IN
b1CU (unloading message from condenser #1)
b2CU (unloading message from condenser #2)
During normal running condition when the temperature/pressure of evaporator/condenser probe is
lower than < CO46 setpoint
ƒ
when the temperature/pressure of evaporator/condenser probe value is higher than
CO46 + CO47
ƒ
After unloading is activated and after Par. CO48
Automatic
Blinking
Alarm relay + buzzer OFF
1592015300 User manual iCHILL 200 L GB
41.32
B1RC
–
B2RC
r1.3
RECOVERY
09/09/2005
DISABLED
FROM
HIGH
CONDENSING
TEMPERATURE/PRESSURE IN CHILLER
Label on the display
b1rC (recovery disabled message from circuit #1)
b2rC (recovery disabled message from circuit #2)
In normal running condition when the temperature/pressure probe value is higher than the set rC06
ƒ
When the temperature/pressure probe value is lower than the rC06 –rC07(differential)
ƒ
Unloading start after the time delay Par. rC08
Automatic
Origin
Reset
Restart
Icona
Blinking
Alarm relay + buzzer OFF
Action
41.33
B1PH
-
B2PH:
PUMP DOWN
STOP ALARM FROM PRESSURE SWITCH
/ LOW
PRESSURE SWITCH
Label on the display
b1PH (Pump down stop alarm of the circuit 1)
b2PH (Pump down stop alarm of the circuit 2)
Pressure switch: if CO36 = 1,2,3,4 and ID not active, the pump down stops because of the timeout
CO39.
Transducer: if CO36 = 1,2,3,4 and the set CO37 is not reached: the pump stops because of the
timeout CO39.
From thermoregulation start-up and ID not active
From thermoregulation start-up with evaporating pressure higher than CO37 + CO38 (differential)
Automatic – Manual and logged after AL21 events per hour (reset procedure in function menu).
Origin
Reset
Restart
Icona
Blinking
Alarm relay + buzzer ON when it becomes manual
Action
41.34
B1PL
-
ALARM DURING THE PUMP DOWN
PRESSURE SWITCH / LOW PRESSURE TRANSDUCER
Label o the display
Origin
Reset
Restart
Icona
Action
B2PL
START-UP FROM PUMP DOWN
b1PL (pump down alarm in start-up of circuit #1)
b2PL (pump down alarm in start-up of circuit #2)
Pump down pressure switch : CO36 = 1,2,3,4 and compressors start-up and digital input not active
for the time set in CO39
Pump down transducer: CO36 = 1,2,3,4, compressors start-up and the set CO37 is not reached in
the interval time CO39.
From thermoregulation start-up and ID not active
From thermoregulation start-up with evaporating pressure higher than CO37 + CO38 (differential)
Automatic - Manual and logged after AL21 events per hour if AL23=1 (reset procedure in function
menu).
If AL23 = 0 it is automatic and not logged.
Blinking
Alarm relay + buzzer ON when it becomes manual
41.35 C1MN - C2MN - C3MN - C4MN - C5MN - C6MN COMPRESSOR MAINTENANCE
Label o the display
C1Mn (Compressor #1 maintenance) –…C6Mn (Compressor #6 maintenance)
Origin
Reset
Restart
Icona
Compressor running hours > Hour counter setpoint
Hour reset in function menu
Manual
Action
Regulation
Action
Loads
Blinking
Alarm relay + buzzer ON
Only display warning messages
Not changed
41.36 AEP1 - AEP2 PUMP/ SUPPLY FAN MAINTENANCE
Label o the display
AEP1 (Evaporator #1 pump maintenance)
AEP2 (Evaporator #2 pump maintenance)
Pg.92/106
1592015300 User manual iCHILL 200 L GB
Origin
Reset
Restart
Icona
Action
Regulation
Action
Loads
r1.3
09/09/2005
Pump/supply fan running hours > Hour counter setpoint
Hour reset in function menu
Manual
Blinking
Alarm relay + buzzer ON
Only display warning messages
Not changed
1592015300 User manual iCHILL 200 L GB
r1.3
09/09/2005
41.37 ACP1 - ACP1 CONDENSER PUMP MINTENANCE
ACP1 (Condenser #1 pump maintenance)
ACP1 (Condenser #2 pump maintenance)
Pump running hours > Hour counter setpoint
Label o the display
Origin
Reset
Restart
Icona
Hour reset in function menu
Manual
Blinking
Alarm relay + buzzer ON
Action
Regulation
Action
Loads
Only display warning messages
Not changed
41.38 ALARM RELAY AND BUZZER
Alarm relay / buzzer outputs
Origin
Alarms still active
Alarms not reset
Whitout alarms
In stand- by or remote ON-O FF if AL42 = 1
By pushing one of the key of the front panel
Reset relay alarm
Buzzer silencing
The alarm relay is enabled only by configurating the corresponding output resource.
41.39
KEYABOARD ALARM
Alarm
code
noL
Atr1
Atr2
keyaboard Alarm description
No data communication between the keyaboard and the regulator.
keyaboard n° 1 set up but not connected to regulator
keyaboard n° 2 set up but not connected to regulator
42 AUTOMATIC TO MANUAL ALARM PROCEDURE
NUMBER OF EVENTS PER HOUR
Each hour counting is divided in 16 intervals, each made of 3600 / 16 = 225 seconds (3 minuts and 45 seconds).
1°Int
2°Int
3°Int
4°Int
5°Int
6°Int
7°Int
8°Int
9°Int
10°Int
11°Int
12°Int
13°Int
14°Int
15°Int
16°Int
After the unit start-up, each interval is marked as “not active”. During the interval counting, for 255seconds, if at least an alarm event
appears, the interval itself is marked “Active”.
Starting from the first interval the instrument calculates the 16 intervals and, at the end, it restats overwriting from the first.
In this way the last hour is always monitored and counted the active intervals. when the number of active intervals reaches the thresold
set with the corresponding parameter the alarm becomes manual.
By setting the thresold (parameter)=0 the alarm is manual from its first activation while if the thresold=16 the alarm is always automatic
(In this case, to change in manual, the thresold should be 17).
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Alarm description
Probe PB1 Alarm
Probe PB2 Alarm
Probe PB3 Alarm
Probe PB4 Alarm
Probe PB5 Alarm
Probe PB6 Alarm
Probe PB7 Alarm
Probe PB8 Alarm
Probe PB9 Alarm
Probe PB10 Alarm
Low air temperature of the evaporator inlet (air / air unit) Alarm
Evaporator flow alarm
Condenser flow alarm
Fan supply overload alarm
Unloading signalling from evaporator
Water pump overload alarm evaporator 1
Water pump overload alarm support evaporator 2
Water pump overload alarm condenser 1
Water pump overload alarm support condenser 2
Water pump maintenance evaporator 1
Water pump maintenance support evaporator 2
Water pump maintenance condenser 1
Water pump maintenance support condenser 2
Clock alarm
clock failure
Generic alarm with unit stopped
Eeprom alarm
Configuration alarm
Configuration alarm
Configuration alarm
Configuration alarm
Configuration alarm
Configuration alarm
Configuration alarm
Configuration alarm
Configuration alarm
Alarm
Code
AP1
AP2
AP3
AP4
AP5
AP6
AP7
AP8
AP9
AP10
ALti
AEFL
ACFL
AtSF
AEUn
AtE1
AtE2
AtC1
AtC2
AEP1
AEP2
ACP1
ACP2
ArtC
ArtF
ALOC
AEE
ACF1
ACF2
ACF3
ACF4
ACF5
ACF6
ACF7
ACF8
ACF9
43.1 ALARM: “A” TYPE AND CORRESPONDING OUTPUT OFF
The alarm codes are made of letters and numbers to define the different typologies:.
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes (3)
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes (3)
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes (boiler) (5)
Yes (boiler) (5)
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes (4)
Yes (4)
Yes (4)
Yes (4)
Condens
er Pump
Yes (boiler)
Evap.
Pump.
Supply fan
Yes
Yes
Yes
Support
heaters
Anti freeze
heaters
Boiler
Yes (1)
Yes (1)
Yes (1)
Yes (1)
Yes (1)
Yes (1)
Yes (1)
Yes (1)
Yes (1)
Yes (1)
Compressor
43 TABLE OF THE OUTPUT STATUS IN ALARM CONDITION
1592015300 User manual iCHILL 200 L GB
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Ventilaz.
cond.
Cir1 Cir2
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes (2)
Yes (2)
Yes (2)
Yes (2)
Yes (2)
Yes (2)
Yes (2)
Yes (2)
Yes (2)
Yes (2)
Auxiliary
relay
09/09/2005
Alarm description
High condensing pressure of the circuit (n)
High condensing temperature from NTC of the circuit (n)
Low condensing pressure - (evaporating with low pressure transducer) with transducer of
the circuit of the (n)
Low condensing temperature NTC circuit (n)
Fan overload circuit (n)
Pump down alarm in stop regulation of the circuit (n)
Pump down in regulation start-up of the circuit (n)
Bad defrost circuit (n)
Unloading from condenser high temp/press of the circuit (n)
Unloading from evaporator low temp/press of the circuit (n)
Recovery function disabled in circuit (n)
Circuit (n) disabled from keyboard
Anti-freeze circuit (n) message in chiller
Anti-freeze circuit (n) message in heat pump
High pressure switch of the circuit (n)
Low pressure switch of the circuit (n)
Anti-freeze in chiller of the circuit (n)
Anti-freeze in heat pump of the circuit (n)
(n) identifies the circuit 1 or 2
b(n)lP
b(n)tF
b(n)PH
b(n)PL
b(n)dF
b(n)Cu
b(n)Cu
b(n)rC
b(n)ds
b(n)Ac
b(n)Ah
b(n)LP
b(n)HP
b(n)LP
b(n)AC
b(n)AH
b(n)hP
b(n)hP
Alarm
Code
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes after 60 seconds
Yes after 60 seconds
Yes after 60 seconds
Yes
Fan condensing of the
circuit (n)
Yes
Yes
Yes
Yes
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Compressors of
the other circuit
Yes
Yes
Yes
Yes
Yes
Compressors
of the circuit
(n)
Yes
Yes
Yes
Yes
Yes
Yes
Fan condensing of
the other circuit
= with probe configured as anti-freeze / boiler control and Ar10 = 0
= with probe configured as auxiliary relay control
= with manual alarm procedure
= Off compressors spenti with only 1 water pump configured or with 2 pumps but both in alarm from the corresponding digital inputs.
= Boiler heaters off with only 1 water pump configured or with 2 pumps but both in alarm from the corresponding digital inputs (in this case the boiler heaters are on only with thermoregulation
anti-freeze setpoint as evaporator protection function)
Faulty clock
Clock error
Unloading signalling from high temp of. evaporator water
Low evaporator inlet temperature in air/air unit
Evaporator #1 water pump maintenance
Evaporator #2 water pump maintenance
Condenser #1 water pump maintenance
Condenser #2 water pump maintenance
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43.2 ALARM: “A” TYPE AND CORRESPONDING OUTPUT OFF
(1)
(2)
(3)
(4)
(5)
ArtF
ArtC
AEUn
ALti
AEP1
AEP2
ACP1
ACP2
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Compressor(n) high pressure switch
Compressor(n) oil pressure switch / Oil level switch
Compressor(n) overload
Compressor high discharge temperature
Compressor (n) disabled from keyboard
Compressor(n) maintenane
C(n)HP
C(n)oP
C(n)tr
C(n)dt
C(n)dS
C(n)Mn
(n) identifies the compressor 1, 2 , 3 , 4 , 5 , 6
Alarm description
Alarm
Code
Yes
Yes
Yes
Yes
Yes
Compressor
(n)
43.3 ALARM: “A” TYPE AND CORRESPONDING COMPRESSOR OUTPUT OFF
1592015300 User manual iCHILL 200 L GB
Compressors not involved
1592015300 User manual iCHILL 200 L GB
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44 BLACK-OUT
After the black-out is restored:
1. The instrument resores the same operating mode lost after the supply failure.
2. If active, the defrost is aborted.
3. All the timers and time parameters are reloaded.
4. The manual alarm is not reset.
45 INSTALLING AND MOUNTING
45.1 PANEL CUT- OUT
The instrument must be mounted on vertical panel, with panel cut-out 150x31mm, and screwed 2 screws ∅ 3 x 2mm, in between
distance 165mm. The IP65 can be reached with the gasket RG-L (opzionale).
The ambient working temperature range should be between 0÷60°C. Avoid locations subject to heavy vibration, corrosive gases or
excessive dirt. The same applies to the probes. Ensure ventilation around the instrument.
31
165
150
Ø3 x2
45.2 PLEXIGLASS PROTECTION BOTTOM OPEN
45.3 PLEXIGLASS PROTECTION TOP OPEN
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45.4
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METAL FRONT FRAME
45.5 VERTICAL BOARDS VI620 – VI820 PANEL CUT-OUT
The remote terminals are for panel mounting, panel cut-out 72x56 mm, and screwed with two screws.
The IP65 can be reached with the gasket RGW-V (optional).
WALL MOUNTING: use the vertical V-KIT (black, white and grey) as described in the following scheme:
1592015300 User manual iCHILL 200 L GB
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46 ELECTRICAL CONNECTIONS
The instrument is provided with:
2
•
3 removable terminal blocks MOLEX with 0.5 mm wires: 16 / 8 /22 ways for digital / analogue inputs and modulating outputs.
2
•
4 removable screw terminal block STELVIO for 2.5 mm wires connection: 3 / 4 / 5 / 6 ways for the relay outputs.
•
5 ways connector for TTL RS485 interface outputs.
•
2 ways connector for remote panels to be connected with the cable CAB/CJ30. The remote panels have two terminals for 2.5
2
mm wires.
•
The LW30 KIT is the complete kit with MOLEX + 3 mt wires already connected and the STELVIO terminals.
•
•
•
Check the connecitons and the line voltage before turning on the power supply.
Keep low voltage cables, such as analogue/digital inputs/outputs and probes, away from power cables and terminals.
Respect the maximum load current of each relay output, in case of power loads use filtered contactors.
47 ACCESSORIES
47.1
MONOPHASE FAN CONTROL: 230VAC AND CUT PHASE CONTROL
Models
Power
Ampere
Scheme
XV05PK
500W
2A
1
XV10PK
1000W
4A
1
XV22PK
2200W
9.5A
1
(Scheme 1)
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Power supply
230Vac
0 - 230Vac
-10 - 65°C
Naylon supports
D
Height
Model
Y
Connections
A 1(+), 2(-)
B 3(+), 4(-)
F
N
5-6
Input
output
Operating temperature
15mm
XV05PK
25mm
XV10PK
42mm
XW22PK
64mm
PWM input control
PWM output repetition signal
Phase
Neutral
Fan output
Terminals 3 and 4 allows to connect another board in parallel to control two separate fans with the same input control.
Terminals 1 / 2 / 3 / 4 are for screw for a 2.5mm wire
Terminals 5 / 6 / F / N are 6,3mm faston
47.2 INVERTER: MICROFAN 380VAC UP TO 4KW OR 8KW
Dixell models XV340GS, power up to 8KW (scheme 2)
(Scheme 2)
47.3 TRANSFORMER
The standard power supply is 12 volt AC/DC or 24 volt AC/DC (optional)
The TF10 trasnformer models: 230/12 Vac , 230 /24 Vac, 110 / 12 Vac, 24 / 12 Vac
1592015300 User manual iCHILL 200 L GB
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48 TECHNICAL DATA
Housing: self extinguishing ABS.
Case: frontal 185x38 mm; depth 70mm (L format)
Mounting: panel mounting in a 150x31mm panel cut-out
Frontal protection: IP65 with gasket
Display:
Top Display 3 digits with d.p.
Bottom Display 4 digits with d.p.
Connections: Removable screw terminal block 2,5mm2.
Power supply:
12Vac/dc,-10%÷+15%
24 Vac/dc±10%. 50/60 HZ (opzionale)
Power absorption: 10VA max.
Inputs: 10 NTC or 6 NTC + 4 (4 ÷ 20ma – 0 ÷ 5Volt )
Digital inputs: # 18 (free voltage)
Relay outputs: 14 SPDT 5(2) A, 250Vac.
Data storing: on the non-volatile memory (EEPROM).
Operating temperature: 0÷60 °C.
Storage temperature: -30÷85 °C.
Relative humidity: 20¸85% (no condensing)
Measuring range: - 30÷70 °C (- 22 ÷ 158 °F) NTC / 0÷150 °C ( 0÷302 °F ) PTC or 0÷ 50 bar (0÷725 psi)
Resolution: 0,1 °C or 1 °F (selectable)
Accuracy of the controller at 25°C: ±0,7 °C ±1 digit
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