Emerson ZX Platform Condensing Unit User manual

ZX Platform Condensing Unit
User Manual
Index
Disclaimer............................................................................................................................................ 1
Introduction To ZX Platform CDU......................................................................................................... 1
Receiving Your Unit............................................................................................................................... 1
Features And Value............................................................................................................................... 1
Nomenclature......................................................................................................................................
2
Bill Of Material (BOM)........................................................................................................................... 2
Physical Layout..................................................................................................................................... 3
Product Specification
Qualified Refrigerants And Oils .................................................................................................................... 4
E2 Control Board - Rotary Switch And Dip Switch Setting (ZX-MT & ZXL-LT).................................................. 5
Defrost Module Function Set....................................................................................................................... 6
Digital Scroll Controller (ZXD)...................................................................................................................... 6
Installation
Condensing Unit Handling........................................................................................................................... 7
Electrical Connection................................................................................................................................... 7
Refrigeration Connection............................................................................................................................. 8
Location and Fxing....................................................................................................................................... 9
Start Up & Operation............................................................................................................................. 10
Diagnostic Initialization Message (ZX-MT and ZXL-LT)............................................................................ 10
Diagnostic Messaging - LED Definition (ZX-MT and ZXL-LT)..................................................................... 11
Alarm Messaging - Digital Scroll Controller (ZXD).................................................................................. 11
Wiring Diagram.................................................................................................................................... 12
Contact Lists......................................................................................................................................... 17
ZX Platform CDU
Disclaimer
Thank you for purchasing the ZX platform condensing unit from Emerson Climate Technologies. ZX platform CDUs are the best
in class within the capacity and operating range available in the market. ZX CDU is designed to operate reliably and to deliver
high operating efficiencies in medium and low temperature refrigeration applications. It also provides constant monitoring
of the compressor operating conditions and displays the running or fault conditions of the CDU. ZX platform CDUs have to
be installed by following the industry trade practices for its safe and reliable operation. It is assumed that the CDU is selected,
installed and serviced only by professionals. The user manual does not cover good industry practices which are essential on a
refrigeration equipment installation. No responsibility can be accepted for damage caused by inexperienced or inadequately
trained site technicians or improper installation design.
If in doubt, please consult your local sales office, quoting unit model and serial number as shown on each unit nameplate. In
case of any ambiguity, the wiring diagram supplied with each unit takes precedence over the diagram in this manual.
Introduction to ZX Platform CDU
ZX medium temperature, ZXD digital medium temperature and ZXL low temperature series have been highly successful in the
Asian market and enjoys proven success with its energy savings and customer-friendly electronic features. ZX, ZXD and ZXL
CDUs have been applied by several well known end-users and chain retailers throughout Asia. The ZX platform is also gaining
wider acceptance in the global market and specific variants have been developed and exported to the USA and to the European
and Middle East markets.
Receiving your unit
All units are shipped with a holding charge of dry nitrogen inside at a low but positive pressure. Suitable labeling is prominently
displayed on both the unit and the packaging. Service connectors are provided on the CDU service valve for the convenient
checking of the integrity of the holding charge.
Caution! It is very important to check that this holding pressure exists at the time you receive each unit from us or our
authorized representatives. Please inform us or our authorized representative if the holding charge is non-existent. Failure to do
so could void the claim for other related system faults at a later period.
Transit damage is essentially an insurance claim and is not covered under manufacturing defect. It is also advisable to inspect
the rest of the unit for obvious physical damage and inform us or our authorized representative in case any is discovered.
ZX Platform Condensing Unit was designed based on three factors
demanded by industry users:
Energy Efficiency - Utilizing Copeland Scroll® compressor technology, variable speed fan motor, large capacity condenser
coil and advanced control algorithms, energy consumption is significantly reduced. End-users can save more than 20% on
annual energy costs rather than using hermetic reciprocating units.
Reliability - Combining the proven reliability of Copeland Scroll® compressors with advanced electronics controller and
diagnostics, equipment reliability is greatly enhanced. Fault code alerts and fault code retrieval capabilities provide information
to help improve speed and accuracy of system diagnostics. Integrated electronics provide protection against over-current,
over-heating, incorrect phase rotation, compressor cycling, high pressure resets, low pressure cut-outs. It can also send out a
warning message to an operator when there is a liquid floodback, which can prevent critical damage on the unit.
Flexibility - The slim shape and light weight make the ZX Condensing Unit aesthetically appealing and eases the installation
process. The ultra quiet variable-speed fan motor significantly reduces exterior sound levels, allowing additional location
flexibility. Combined with wall mounting capability, the ZX Condensing Unit delivers unmatched flexibility.
ZX Condensing Units are greatly suitable for walk-in cooler and freezer applications.
The advance scroll compressor technology, fan speed control and electronic controller are precisely collaborated in all units. It also
introduces variable-speed fan motors that go beyond national standards. Guaranteed dependable performance and operation in
foodservice applications while conveying higher energy efficiency and lower sound levels are the main objectives.
1
ZX Platform Condensing Unit
Diagnostic Protection
Increased Reliability and Lower Maintenance Costs
Flexibility
More Installation Options
Highest Efficiency
Lower Energy Bills
ZXD Series
ZX and ZXL Series
Proprietary Electronic Algorithms to Control Fan Speed,
Optimizing Energy Performance for Local Seasonal Ambient
Temperatures
- Shuts down unit during failure
- With real time monitoring of
compressor operating conditions
Built-in ZX
Platform
Controller
Diagnostic
Digital
Messaging
Variable Speed Fan
Motor and High
Efficiency Fan Blade
• Compressor Reverse Rotation
• Compressor Over Current
• Compressor Internal Motor
Protector Trip
• Discharge Gas Over Heat
• High Pressure Cut Out
• Low Pressure Cut Out (only on
MT series)
• Refrigerant Flood Back
• Compressor Minimum Off Time
• Internal Thermal Sensor Failure
Copeland Scroll Compressor Technology
– High Efficiency, Ultra Quiet, High
Reliability
Oversized Condenser
Coil for Maximum Heat
Transfer
Figure 01. ZX Platform CDU Features
Nomenclature
F
Base Model
D
-
4
Electrical Code
5
1
Bill of Material
T
TF7=380 - 3ph - 60 Hz
-
TF5 = 200V/230V- 3ph- 60 Hz
E
TFD = 380V/420V- 3ph- 50 Hz
0
PFJ = 220V/240V- 1ph- 50 Hz
2
E = Ester oil
O = Mineral Oil
0
2.0 to 7.6 HP
L
= Medium Temp
L = Low Temp
D = Digital Medium Temp
X
Unit Family
Z
Bill of Material
BOM
CDU Family
BOM
ZX
ZXL
401
451
451
ACC
ACC
ACC
461
ZXD
471
450
451
461
Liquid Line Filter Dryer/Sight Glass
Oil Separator
Accumulator
Adjustable LP Switch
Fixed LP Switch
E2 Controller
Diagnostic Module
Buzzer
Digital Scroll Controller
Fan Speed Controller
Circuit Breaker
Sound Jacket
Defrost Module
Filter Drier
ACC
V
Notes: - E2 controller has fan speed control function
- “V” indicates flare type connection
- “ACC” indicates accessory
2
Physical Layout
The following figures give an introduction to the physical layout of the ZX Platform CDU.
Figure 02: Identifies the Electronic controller assembly on a ZX platform CDU.
ZX- MT, ZXL-LT E2 Controller
* ZXD Digital Scroll Controller
Scroll Compressor
* ZXD Digital scroll controller not shown in Fig. 02. See Fig. 05 for LED and keypad
Figure 03: Identifies other major components layout on a ZX platform CDU.
Oil Separator
(Optional In MT CDU)
Liquid Receiver
Liquid Sight Glass/
Moisture Indicator
Liquid Filter Drier
Suction And Liquid
Service Valve
Receiver Out Service Valve
Compressor Oil Sight Glass
Figure 04: Shows the layout of the E2 controller, electrical components, dip switches and rotary switch in the E2 control board.
E2 Power Board
Rotary Switch
E2 Control Board
3-Bit Dip Switch
Power Isolation Switch
2-Bit Dip Switch
Diagnostic Module
Compressor Contactor
Defrost Module
(optional)
Fuse Holder
3
Electrical Cable connectors
ZX Platform Condensing Unit
Figure 05: Shows LED and keypad of ZXD digital scroll controller.
Suction pressure
ure
Suction temperature
erature display
d
Program Mode: browses parameter codes or
increase value
Hot Key Insert : Hot key programming
procedure
INFO Menu: Press and release it to access
INFO Menu
Program Mode: below parameter codes or
decrease value
Maintenance /Clock
Enter Alarm
Manual Restart
Setup Menu
Condenser
ser pressu
pressure
Condenser temperature display
Product Specification
For application envelope, envelope varies according to applications and refrigerants. Please refer to ZX platform product
catalogue, product manual, or Copeland® Brand Products Selection Software.
Qualified refrigerants and oils
REFRIGERANT
OIL
R404A/507
Emkarate RL 32 3MAF
Mobil EAL Artic 22 CC
R22
Suniso 3GS
Oils are pre-charged in both compressor and oil separator. Total oil volume (liter) for each unit is shown in the table below:
ZX
Model
ZXD
BOM
Model
ZXL
BOM
Model
ALL
BOM
401
451
ZX0200/E
1.18
ALL
1.68
ZXL0200/E
1.06
ZX0250/E
1.33
1.83
ZXL0250/E
1.06
ZX0300/E
1.33
1.83
ZXL0300/E
1.06
ZXL0350/E
1.74
ZX0400/E
1.83
2.33
ZXD0400/E
1.74
ZXL0400/E
1.74
ZX0500/E
1.83
2.33
ZXD0500/E
2.27
ZXL0500/E
1.74
ZX0600/E
1.66
2.16
ZXD0600/E
2.27
ZXL0600/E
2.27
ZX0750/E
1.66
2.16
ZXD0750/E
2.27
ZXL0750/E
2.27
ZX0760/E
1.66
2.16
4
E2 Control Board - Rotary Switch And Dip Switch Setting (ZX-MT & ZXL-LT)
Model
Rotary
Switch
3-Bit
No. 3
2-Bit 1/2
Model
Rotary
Switch
2-Bit 1/2
ZX0200/E-PFJ
7
OFF
ON/ON
ZXL0250/E-TFD
2
OFF
ON/ON
ZX0250/E-PFJ
8
OFF
ON/ON
ZXL0300/E-TFD
3
OFF
ON/ON
ZX0300/E-PFJ
9
OFF
ON/ON
ZXL0350/E-TFD
4
OFF
ON/ON
ZX0400/E-PFJ
A
OFF
OFF/OFF
ZXL0400/E-TFD
5
OFF
ON/ON
ZX0200/E-TFD
1
OFF
ON/ON
ZXL0500/E-TFD
6
OFF
ON/ON
ZX0300/E-TFD
2
OFF
ON/ON
ZXL0600/E-TFD
7
OFF
ON/ON
ZX0400/E-TFD
3
OFF
ON/ON
ZXL0750/E-TFD
8
OFF
ON/ON
ZX0500/E-TFD
4
OFF
ON/ON
ZXL0200/E-TF5
1
ON
ON/ON
ZX0600/E-TFD
5
OFF
ON/ON
ZXL0250/E-TF5
1
ON
ON/ON
ZX0750/E- 760/E-TFD
6
OFF
ON/ON
ZXL0300/E-TF5
2
ON
ON/ON
ZX0200/E-TF5
1
ON
ON/ON
ZXL0350/E-TF5
3
ON
OFF/OFF
ZX0300/E-TF5
2
ON
ON/ON
ZXL0400/E-TF5
4
ON
OFF/OFF
ZX0400/E-TF5
3
ON
ON/ON
ZXL0500/E-TF5
5
ON
OFF/OFF
ZX0500/E-TF5
4
ON
OFF/OFF
ZXL0600/E-TF5
6
ON
OFF/OFF
ZX0600/E-TF5
5
ON
OFF/OFF
ZXL0750/E-TF5
7
ON
OFF/OFF
ZX0750/E- 760/E-TF5
6
ON
OFF/OFF
ZXL0200/E-TF7
8
ON
ON/ON
ZX0200/E-TF7
7
ON
ON/ON
ZXL0250/E-TF7
8
ON
ON/ON
ZX0300/E-TF7
8
ON
ON/ON
ZXL0300/E-TF7
9
ON
ON/ON
ZX0400/E-TF7
9
ON
ON/ON
ZXL0350/E-TF7
A
ON
ON/ON
ZX0500/E-TF7
A
ON
ON/ON
ZXL0400/E-TF7
B
ON
ON/ON
ZX0600/E-TF7
A
ON
ON/ON
ZXL0500/E-TF7
C
ON
ON/ON
ZX0750/E- 760/E-TF7
B
ON
ON/ON
ZXL0600/E-TF7
D
ON
ON/ON
ZXL0200/E-TFD
1
OFF
ON/ON
ZXL0750/E-TF7
D
ON
ON/ON
ON
1 2 3
OFF: Evaporator fan ON/OFF logic is same
as compressor and this is the factory
default setting.
ON: Evaporator fan will be ON for all time
irrespective of whether the compressor is
turned ON or OFF
Not applicable
Use setting in the table
Notes: The settings given in the table are pre-set at the factory for new units.
5
3-Bit
No. 3
ZX Platform Condensing Unit
Defrost Module Function Set
Time of Defrost
Time of Defrost Interval
Rotary
Switch1
Time(min)
Rotary
Switch2
Time
(hours)
0
1
2
3
4
5
6
7
0
5
10
15
20
25
30
35
0
1
2
3
4
5
6
7
0
1
2
3
4
5
6
7
Defrost Duration (in Minutes)
Manual Defrost
Button
Remote Connector
For Manual Defrost
Defrost Interval
(In Hours)
E2 Connector
Figure 06
Figure 06: ZX Platform Defrost Module
Digital Scroll controller (ZXD)
The controller has been pre-programmed with a number of parameter values that are set for typical application. Individual
installation requirements, however, may make it necessary to alter parameter settings. The control target of the digital scroll
compressor controller is to maintain the suction pressure (or saturated suction temperature) at a defined value by varying the
available compressor capacity. The set-point can be altered using the SEtC parameter. Factory setting SEtC is -6oC.
The control target of the fan speed controller is to maintain the average condenser mid-coil temperature and hence the average
discharge pressure at a defined value. This is achieved by varying the fan speed. The set-point can be altered using the SEtF
parameter. Factory setting SEtF is 25oC.Initial setting of set point for saturated suction temperature.Pre-set value is located in the
SEtC position as shown in the diagram below:
press for more than 2 sec
SEtC value
Flashing
or
to change set value within 30 seconds
press to memorize new set value.
Then SEtF (fan speed control set point) will be displayed automatically.
SEtC value
Flashing
or
to change set value within 30 seconds
press to memorize new value and Exit, or wait for
30 seconds without pressing any key to memorize value and exit
6
Installation
Copeland ZX condensing units are delivered with a holding charge of neutral gas. The condensing unit should be located
in such a place to prevent any dirt, plastic bag, leaves or papers from covering the condenser and its fins. The unit must be
installed without restricting the airflow. A clogged condenser will increase the condensing temperature, thus reduce the
cooling capacity, and lead to a high-pressure switch tripping. Clean the condenser fins on a regular basis.
Condensing Unit Handling
Transport And Storage
Move ZX/ZXD/ZXL unit only with appropriate mechanical or handling equipment according to weight. Keep in the upright
position. Do not stack single boxes on top of each other without pallet in any case. Keep the packaging dry at all times.
Storage
Transport
max
300 Kg
2
2
1
max
max
300
300Kg
Kg
1
Net Weight
ZX
ZXD
ZXL
Model
Weight (kg)
Model
Weight (kg)
Model
Weight (kg)
ZX0200/E
76
ZXD0400/E2
104
ZXL0200/E
79
ZX0250/E
79
ZXD0500/E3
112
ZXL0250/E
81
ZX0300/E
79
ZXD0600/E4
114
ZXL0300/E
81
ZX0400/E1
91
ZXD0750/E5
122
ZXL0350/E
93
ZX0500/E
108
ZXL0400/E
93
ZX0600/E
112
ZXL0500/E
106
ZX0750/E
118
ZXL0600/E
116
ZX0760/E
121
ZXL0750/E
121
Notes:
1
100 kg for models under 60 Hz TF5/7 and 50 Hz PFJ
2
109 kg for models under 60 Hz TF7
3
117 kg for models under 60 Hz TF7
4
121 kg for models under 60 Hz TF7
5
127 kg for models under 60 Hz TF7
Electrical Connection
Power supply
The ZX condensing unit electrical connection to the power supply must be made by qualified technicians, who should refer
to the electrical diagrams located inside the electric connection panel. The units are designed for below power supply at ±
10% voltage tolerance. The circuit breaker must be switched off before opening the front panel.
Codes
HZ
Phase
Voltages
PFJ
50
1
220/240
TFD
50
3
380/420
TF7
60
3
380
TF5
60
3
200/230
Electrical wiring
Before commissioning, ensure that neutral “N” wire is connected to the terminal block (“N” furthest to the right). After proper
connection of the ZX condensing unit, the control LED on the power board and control board will light. For more details, see wiring
diagram in Appendix.
7
ZX Platform Condensing Unit
Refrigeration connections
Refrigeration piping installation
All interconnecting pipes should be of refrigeration grade, clean, dehydrated and must remain capped at both ends until
installation. Even during installation, if the system is left for any reasonable period of time (say two hours), pipes should be recapped to prevent moisture and contaminants from entering the system.
Do not assume that the service connection sizes on the unit (at the service valves) are the correct size to run your
interconnecting refrigeration pipes. The service valve sizes have been selected for convenience of installation and in some
cases (larger units) these may be considered too small. However for the very short pipe run within our units, these service
connection sizes are adequate. All interconnecting pipes should be sized to satisfy the duty required.
Usually the suction line is insulated, but the liquid line is not. However the liquid line can pick up additional heat from the
ambient and adversely affect the sub-cooling desirable for the liquid refrigerant before it enters the expansion valve.
The pipe should be sized to ensure optimum performance and good oil return. The sizing must also take into account the full
capacity range through which this particular unit will need to operate.
Pipe runs should be kept as short as possible, using the minimum number of directional changes. Use large radius bends and
avoid trapping of oil and refrigerant. This is particularly important for the suction line. The suction line should ideally slope
gently towards the unit. Recommendation slope is 1/200~1/250. P traps, double risers and reduced pipe diameters may be
required for suction lines where long vertical risers cannot be avoided. All pipes should be adequately supported to prevent
sagging which can create oil traps. The recommended pipe clamp support distance is shown in the table.
Tube Size
Max distance between
2 clamp support
12.7mm (1/2 inch)
1.20 m
16.0mm (5/8 inch)
1.50 m
22.0mm (7/8 inch)
1.85 m
28.5mm (1 1/8 inch)
2.20 m
ZXL liquid line insulation
ZXL liquid line should be insulated with a 19 mm insulation thickness. Temperature could be as low as –15°C.
Brazing recommendations
Maintain a flow of oxygen-free nitrogen through the system at a very low pressure during brazing. Nitrogen displaces the air
and prevents the formation of copper oxides in the system. If copper oxidization is allowed to form, the copper oxide material
can later be swept through the system and block screens such as those protecting capillary tubes, thermal expansion valves,
and accumulator oil return holes. This minimizes any entry of contaminants and moisture.
• Remove the liquid line connection cap.
• Then remove the suction connection cap.
• Open both valves midway. Care should be taken to
avoid the holding charge from releasing too quickly.
• Be sure tube fitting inner diameter and tube outer
diameter are clean prior to assembly.
• Since both tubes are extended from the condensing
unit housing, we recommend insulating the housing
by using a wet cloth on the copper tubing.
• Recommended brazing materials: a copper /
phosphorous or copper / phosphorous / silver alloy
rod should be used for joining copper to copper
whereas to join dissimilar or ferric metals, use a
silver alloy rod, either flux coated or with a separate.
• Use a double tip torch.
OUTSIDE
INSIDE UNIT
End of tube
During brazing
protect housing with
damp cloth
During brazing
pull back fire
insulation
8
Location and fixing
1029
500
Power
Supply Hole
Suction
Service Valve
Liquid
Service Valve
2 Holes 15mm DIA
94
300
70
70
90
23
172
110
840
300
352
388
500
The unit should always be installed in a location that ensures clean air flow. It is recommended that a clearance of 300 mm
from the wall (or the next unit) be maintained from the unit’s left and rear panels whereas a clearance of 500 mm must be
maintained from the unit’s right, top and front panels (seen facing the front of the unit). Both service access and airflow
have been considered in making these recommendations. Where multiple units are to be installed in the same location, the
contractor needs to consider each individual case carefully. There can be many variations of unit quantities and available space
and it is not the intention of this manual to go over these. Ideally, the unit should be mounted on a solid concrete slab with
anti-vibration pads between unit feet and concrete. However the ZX condensing unit has also been designed for wall mounting
on suitable brackets. Wall mounting brackets are not included. Another factor to consider in finding a good installation site is
the direction of the prevailing wind. For example if the air leaving the condenser faces the prevailing wind, the air flow through
the condenser can be impeded, causing high condensing temperatures ultimately resulting in reducing unit life. A baffle is a
remedy for this situation.
2-R7.5MM GROOVE
580
424
500
Single Fan Unit
2 to 4 HP
500
Fixing dimensions and distances - Single fan unit
500
1029
352
300
2 Holes 15mm DIA
23
300
70
70
500
Fixing dimensions and distances - Dual fan unit
9
424
110
388
94
90
172
1242
Power
Supply Hole
Suction
Service Valve
Liquid
Service Valve
2-R7.5MM GROOVE
580
Dual Fan Unit
4 to 7.6 HP
ZX Platform Condensing Unit
Start Up and Operation
Before commissioning, ensure that all valves on the condensing unit are fully opened.
Evacuation
The evacuation procedure is based upon achieving an actual system vacuum standard and is not time dependent. Before the
installation is put into commission, it has to be evacuated with a vacuum pump. Proper evacuation reduces residual moisture
to 50ppm. The installation of adequately sized access valves at the furthest point from the compressor in the suction and liquid
lines is advisable. To achieve undisturbed operation, the compressor valves are closed and the system is evacuated down to
0.3 mbar / 0.225 Torr. Pressure must be measured using a vacuum pressure (Torr) gauge on the access valves and not on the
vacuum pump; this serves to avoid incorrect measurements resulting from the pressure gradient along the connecting lines to
the pump.
Charging procedure
Refrigerant charging procedure
The scroll compressor design requires system charging as quickly as possible with liquid refrigerant into the liquid line. This will
avoid running the compressor under conditions where there is insufficient suction gas. Sufficient suction gas is available to cool
not only the motor but also the scrolls. Temperature builds up very quickly in the scrolls if this is not done. Do not charge vapor
(gas) refrigerant into the ZX Scroll unit. The suction service valve must not be fully closed at any time while the compressor is
running. To do so would cause damage to the compressor in the same manner as explained above. This valve is provided for
ease of connection and for the fitting of service gauges without removing the unit panel. It is recommended to charge the ZX
unit with refrigerant via its service valves. It is recommended to break the vacuum in the system with a partial charge of the
refrigerant, before starting the system. For charge adjustment, it is recommended to check the liquid sight glass just before the
expansion valve.
Oil charging procedure
Emerson ZX condensing units are supplied only with a compressor oil charge. After commissioning, the oil level should be
checked and topped up if necessary. The oil level should be approximately halfway up the sight glass (ZXL/ZXD units). Oil can be
charged through the Schraeder valve on suction valve.
Scroll compressor rotation direction
Scroll compressors, like several other types of compressors, will only compress in one rotational direction. The direction of
rotation is not an issue with single-phase compressors since they will always start and run in the proper direction. Threephase compressors will rotate in either direction depending upon the phasing of the power. Since there is a 50-50 chance of
connecting power in such a way that causes rotation in the reverse direction, it is important to include notices and instructions
in appropriate locations on the equipment to ensure proper rotation direction when the system is installed and operated.
Maximum compressor cycle
Maximum permitted starts per hour is 10.
Check before starting & during operation
Both valves should be fully opened on the liquid line, in order to prevent trapping liquid.
• Check that all valves are fully opened.
• After starting and operation conditions are stabilized, it is recommended to check the oil level in compressor(s) and see if
there is a need to add oil to ensure a sufficient oil level (halfway up the sight glass).
Diagnostic Initialization Message (ZX-MT and ZXL-LT)
When the unit is initially powered on, the diagnostic module will show the following signals.
(1 second)- >
(3 seconds)- >
(3 seconds)->
- Software Version No.
- Unit Identification Code
“F”-With OD Fan Speed Control; “-”- W/O OD Fan Speed Control
“-” - ZX; “L” - ZXL
- Power On
LED 2
LED 1
10
Diagnostic messaging - LED definition (ZX-MT and ZXL-LT)
LED1-Unit Status
Display
Controller
Pause Unit
Automatic
Reset
LED2-Error/Warning Code
Display
Status
Display Warning Signal
Error/Warning
Controller
Lock Unit
Manual Reset
Idle (Stop When
Reach To Set-point)
No error/warning
Run
Compressor Phase Error (Wrong Phase Sequence/Loss of
Phase)
Every Protection Action
Every Protection Action
NA
About To Start 1
Compressor Inside Thermal Protector Trip
Every Protection Action
NA
NA
Defrost
Compressor Over Current
Every Protection Action
Stop Due to Error
Overheat
Every Protection Action
Lockout
Compressor High Pressure Cut Out
Every Protection Action
Compressor Low Pressure Cut Out
2
Every Protection Action
<5 times
Protection In
1 Hour
ZX: <5 times
Protection In 1
Hour
ZXL: Every
Protection
<5 times
Protection In 1
Hour
Every
Protection
<5 times
Protection In 1
Hour
6th Protection
In 1 Hour
ZX: <6th
Protection In 1
Hour
ZXL: NA
6th Protection
In 1 Hour
NA
DLT Thermistors Failure
Every Protection Action
NA
Ambient Temperature Sensor Failure
Every Protection Action
NA
NA
Mid-coil Temperature Sensor Failure
Every Protection Action
NA
NA
PHE Vapor In Temperature Sensor Failure or Over Range 3
Every Protection Action
NA
NA
PHE Vapor Out Temperature Sensor Failure or Over Range 3
Every Protection Action
NA
NA
System Liquid Flood Back Warning
~20% Liquid Back
NA
NA
Notes:
1 New start, normal start by program and any start request delay
2 “LP Cutout”signal is not applicable in ZXL condensing unit.
3 PHE Vapor In/Out temperature sensor is not applicable in ZX medium temperature condensing unit.
Alarm messaging - Digital scroll controller (ZXD)
Alarm Mode
dtL
E01L
E0L
Set Points
DLT >= dtL after dLd time
delay
Low pressure is lower than ELP
(Level 3 Parameter)
Mechanical LP
switch opens
Controller Actions
Reset
Remarks
- Compressors are turned off
Auto reset when DLT < dtL-dLH
DLT
- Compressors are turned off
- Fans are unchanged
Auto reset when LP >= ELP(Level 3)
LP
Auto reset when Number of
activations < PEn in PEi time
LP
Manual reset when Number of
activations >= PEn in PEi time
- Compressors are turned off
- Fans are unchanged
key for 3 sec or
- Press
- Turn off and on the unit
C-LA
LP < LAL
- Signaling only
Auto reset when LP = LAL + delta (0.3bar)
LP
C-HA
LP >= HAL
- Signaling only
Auto reset when LP = HAL -delta (0.3bar)
LP
Auto reset when Number of activations
< PEn in PEi time
Cond Mid Temp.
E0H
Condensing Temperature
High
- Compressors are turned off - Fans are
turned on
Manual reset when Number of activations
>= PEn in PEi time
- Press
Cond Mid
key for 3 sec or - Turn off and on the unit
F-HA
HP >= HAF
- HFC = yes, compressor are turned off
Auto reset when HAF + delta (0.3bar)
Cond Mid Temp.
P1
Suction Transducer failure or
out of range
- Compressors are activated according
to SPr or PoPr
Auto reset when probe is normal
LP
P2
Condenser Mid Coil Sensor
failure or out of range
- Fans are activated according to FPr
Auto reset when probe is normal
Cond Mid Temp.
P3
Discharge Temp Sensor failure
or out of range
-The functions related to No.3 probe
are disabled
Auto reset when probe is normal
DLT
DLT: Discharge line temperature
LP: Low pressure
HP: High pressure
11
LP
ATTENTION: Unit MUST be grounded!
PFJ: 220V-50 Hz -1Ph
BLUE
ZX Condensing Unit Wiring Diagram
ZX Platform Condensing Unit
12
13
ATTENTION: Unit MUST be grounded!
TFD: 380V/420V -50 Hz-3Ph
TF7: 380V-60 Hz -3Ph
ZX/ZXL Condensing Unit Wiring Diagram
5.Only ZXL TF5 has 4 additional posts on
the terminal block.
ATTENTION: Unit MUST be grounded!
TF5: 200/230V- 50 Hz/ 60 Hz - 3Ph
ZX/ZXL Condensing Unit Wiring Diagram
ZX Platform Condensing Unit
14
15
1
E
E
M2
M1
Black
White
10
15 16
22 23 24
12
Capacitor2
White
Black
White
Capacitor1
White
Fan Speed Controller
3
2012-02-15
ATTENTION: Unit MUST
be grounded!
052-2662-00
TF7 - 380V, 60Hz, 3Ph
E
L1
L2
L3
2
1
2
Internal motor
protector
T3(W)
COMP'R
T1(U)
Red
Yellow
Red
Red
Blue
Black
Crankcase Heater
T2(V)
A2
22N/C
T1
T2
T3
Black
N
N
Fuse
(2A/250V)
6
5
W
Contactor
4
3
1
Blue
Aux 21N/C
Black
A1
Red
Blue
Yellow
Circuit
Breaker
"I"
V
U
TFD: 380V/420V -50 Hz-3Ph
ZXD Condensing Unit Wiring Diagram (With Fan Speed Control Function)
TF7: 380V-60 Hz-3Ph
TFD - 380/420V, 50Hz, 3Ph
(With Fan Speed Control Function)
ZXD Condensing Unit Wiring Diagram
Input:
230VAC
Transformer
Output:
12VAC
Terminal 1
Block
COND. Mid
Coil Temp.
Sensor
LP Switch
Brown
+
-
2
1
+
23 24
4
6
8 10 12 14
Pb3Pb1Pb2 LP Id3 Id1
3 5 7 9 11 13
21 22
Out
0~10V
4~20mA
16 18 20
Hot KeY / TTL
Digital Scroll
Controller
15 17 19
+
HP
-
+
i2F
HP Switch
25 26 27 28
-
Blue
PWM Valve
Blue
White
Pressure
Transducer
2 3 4 5 6 7 8 9 10 11 12 N N N
Compressor DLT
Sensor
Dashed line "
" is wired by installer.
ATTENTION:Unit MUST be grounded!
Notes:
E
E
2012-03-28
052-2677-00
Red
M2
Red
M1
To N
To N
White
Capacitor2
White
Black
White
Capacitor1
White
Black
ATTENTION: Unit MUST be grounded!
TFD - 380/420V, 50Hz, 3Ph
TF7 - 380V, 60Hz, 3Ph
E
L1
L2
L3
2
1
2
Internal motor
protector
T3(W)
COMP'R
T1(U)
Yellow
Red
Red
Red
Blue
Black
Crankcase Heater
T2(V)
A2
22N/C
T1
T2
T3
Black
N
N
Fuse
(2A/250V)
6
5
W
Contactor
4
3
1
Blue
Aux 21N/C
Black
A1
Red
Blue
Yellow
Circuit
Breaker
"I"
V
U
Input:
230VAC
TFD: 380V/420V-50 Hz-3Ph
TF7: 380V- 60 Hz-3Ph
ZXD Condensing Unit Wiring Diagram (Without Fan Speed Control Function)
(without Fan Speed Control Function)
ZXD Condensing Unit Wiring Diagram
Transformer
Output:
12VAC
Terminal 1
Block
COND. Mid
Coil Temp.
Sensor
LP Switch
To Fan
Brown
-
2
1
23 24
+
4
6
8 10 12 14
Pb3Pb1Pb2 LP Id3 Id1
3 5 7 9 11 13
21 22
+
Out
0~10V
4~20mA
16 18 20
Hot KeY / TTL
Digital Scroll
Controller
15 17 19
+
HP
-
+
i2F
HP Switch
25 26 27 28
-
Blue
PWM Valve
Blue
White
Pressure
Transducer
2 3 4 5 6 7 8 9 10 11 12 N N N
Compressor DLT
Sensor
Dashed line "
" is wired by installer.
ATTENTION:Unit MUST be grounded!
Notes:
ZX Platform Condensing Unit
16
Contact List
Emerson Climate Technologies
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Emerson Climate Technologies
South Korea
(Suzhou) Co. Ltd
Emerson Electric (South Korea) Ltd.
Shanghai Sales Office
3F Pharos Tower, 119 Nonhyeon-dong
1801 Building B, New CaoHeJing
Gangnam-gu, Seoul, South Korea 135-010
International Business Center,
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391Guiping Rd, Shanghai, PRC
Tel: (86-21) 3418 3968
Fax: (82-2) 592-7883 / 592-7886
Malaysia
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Fax: (971- 4) 886 5465
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Emerson Climate Technologies
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#7 St. Francis Street, Ortigas Center,
Mandaluyong City, Philippines
Tel: (632) 689 7288 / (632) 479 5200
Taiwan
Emerson Electric (Taiwan) Co. Ltd
3F No. 2 DunHua South Road Sec.1,
Taipei (105), Taiwan
Tel: (+886-2) 8161 7688
Fax: (+886-2) 81617614
Thailand - Bangkok
Emerson Electric (Thailand) Ltd
34th Floor Nation Tower
1858/133 Bangna Trad
Bangkok 10260 , Thailand
Tel: (66-2) 716 4700
Fax: (66-2) 751 4240
Vietnam
Emerson Climate Technologies - Vietnam
Suite 307-308,
123 Truong Dinh St., Dist.3
Ho Chi Minh, Vietnam
Tel: 84 908 009 189
EmersonClimate.com/Asia
Asia 02 A01 10 – R00 Issued 4/2012
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