K20136EN ed.4
TECHNICAL NOTE
Compact-I MD
series
TCAITY-THAITY 236÷260
Air-cooled water chillers and reversible heat pumps
with axial fans. Range with hermetic DC brushless
Scroll compressors and refrigerant R410A.
Index
Compact-I MD
Index
General Features..................................................................................................................................................................5
Declared conditions of use.....................................................................................................................................................................5
New Compact-I range...........................................................................................................................................................6
Low consumption chillers....................................................................................................................................................................... 6
AdaptiveFunction Plus .......................................................................................................................................................6
Structural features .............................................................................................................................................................................. 7
Available Installations ................................................................................................................................................................................7
Electrical Control Board..............................................................................................................................................................................7
Technical Data......................................................................................................................................................................9
TCAITY model............................................................................................................................................................................................9
THAITY model..........................................................................................................................................................................................10
Energy efficiency at partial loads
ESEER index............................................................................................................................................................................................11
Electronic controls.............................................................................................................................................................12
Serial Connection...............................................................................................................................................................13
Perfomance.........................................................................................................................................................................14
Sound power and pressure levels....................................................................................................................................15
Functioning limits...............................................................................................................................................................16
Dimensions and volume TCAITY – THAITY 236 standard set-up, Pump – Tank & Pump...........................................17
Dimensions and volume TCAITY – THAITY 236 standard set-up, P - ASP witch accessories DS15/RC100..............17
Dimensions and volume TCAITY – THAITY 245÷260......................................................................................................18
Dimensions and clearances TCAITY – THAITY 245÷260 DS and RC100 set-up...........................................................18
Clearance and positioning........................................................................................................................................................................19
Weights.....................................................................................................................................................................................................19
Water connections ............................................................................................................................................................20
Use of antifreeze solutions.......................................................................................................................................................................31
Water circuits TCAITY-THAITY models............................................................................................................................32
Electrical connections.......................................................................................................................................................34
3
Compact-I MD
General Features
New Compact-I range
Inverter compressor
Thanks to inverter technology, Compact-I
units are able to modulate heating and cooling capacity continuously over time, adjusting the power supplied to system request
minute-by-minute, thus ensuring high efficiency as well as partial loads.
4
Extremely silent
Compact-I is characterised by low sound
levels that are decreased even further with
partial loads. This is possible thanks to the
modulating capacity of the compressor and
fans, which reduce their speed according
to outdoor and load conditions. Moreover,
when energy requirement is minimal and the
need for more silence increase, for example
during night-time operation, via the FDL accessory, it is possible to limit the maximum
operation frequency to a pre-established value, having remarkable advantages from an
acoustic point of view.
Plug&play unit
From a hydraulic point of view, the units are
available with different fittings in order to be
easily coupled to different types of systems.
EC Fans (accessory)
The FI15 accessory is also available for maximum attention to energy saving, which is
assembled in brushless fan units.
Thanks to the set up with an EC brushless
circulator, it is possible to manufacture variable capacity systems that reduce energy
costs and simplify the system.
The energy savings in the annual cycle,
compared to the standard fans, can reach
50%.
Comfort 360 ° C
THAITY units are able to ensure maximum
performance both when heating/cooling rooms and for DHW production by means of
3-way diverter valve management.
Control from the machine also enables intelligent management of an auxiliary generator
(e.g. boiler) or integration (e.g. electrical resistance) to guarantee perfect comfort throughout the year.
Compact-I MD
General Features
General Features
Declared conditions of use
The THAITY units are monobloc reversible
heat pumps on the cooling circuit with air
evaporation/condensation and axial fans.
The TCAITY units are air cooled packaged
water chillers with axial fans.
They are suitable in air conditioning installations and industrial processes where chilled
and hot water is required, not for human
consumption.
The units are designed for outdoor installation.
The units comply with the following Directives:
○○ 2006/42/EC Machinery Directive;
○○ Low voltage Directive 2006/95/EC;
○○ Electromagnetic compatibility Directive 2004/108/CE;
○○ Pressure equipment directive 97/23/
CEE (PED).
○○ Restriction of the use of certain hazardous substances in electrical and
electronic equipment 2011/65/EU
Guide to reading the code
"SERIES" code
T
Water production unit
"MODEL" code
C
A
Cooling only
H
Air cooling
Heat pump
I
Inverter scrolltype hermetic
compressors
T
High efficency
Y
R410A
refrigerant
gas
2
36÷60
Number of
compressors
Approximate
heating
capacity
(in kW)
Available Installations:
Standard:
Installation without pump and without water buffer tank
Pump (main circuit):
P1 – Installation with pump.
P2 – Installation with increased static pressure pump.
DP1 – Installation with double pump, including an automatically activated pump in stand-by.
DP2 – Installation with increased static pressure double pump, including an automatically activated pump in stand-by.
PI1 - Set up with pump featuring constant speed control (variable system flow rate).
PI2 – Set up with pump featuring increased head pressure and constant speed control (variable system flow rate).
DPI1 – Set up with double pump, of which one in standby with automatic operation and constant speed control (variable system flow rate).
DPI2 – Installation with increased static pressure double pump, including an automatically activated pump in stand-by. with continuous speed
adjustment (variable capacity of the system).
Tank & Pump (main circuit):
ASP1 – Installation with pump and water buffer tank.
ASP2 – Installation with increased static pressure pump and water buffer tank.
ASDP1 – Installation with double pump, including an automatically activated pump in stand-by and storage.
ASDP2 – Installation with increased static pressure double pump, including an automatically activated pump in stand-by and storage.
ASPI1 – Set up with pump and tank featuring constant speed control (variable system flow rate).
ASPI2 – Set up with pump and tank featuring increased pressure head and constant speed control (variable system flow rate).
Example: THAITY 245 P1
•
Hot and cold water production unit;
•
Air-cooled;
•
2 Scroll-type hermetic compressors;
•
High efficiency version;
•
R410A refrigerant fluid;
•
Approximate nominal cooling capacity 45 kW;
•
Installation with standard static pressure pump
5
Compact-I MD
General Features
New Compact-I range
Low consumption chillers
energy yield, reliable and versatile
A complete and flexible range and.... up to four capacity
steps
New chillers and heat pumps with R410A inverter compressor equipped with the innovative control logic AdaptiveFunction Plus featured
throughout the range. Besides optimising compressor activation and
the relative operating cycles, the control, developed by RHOSS in
collaboration with the University of Padua, allows optimal comfort
levels to be achieved in all load conditions and the best performance
in terms of energy efficiency during seasonal operation.
AdaptiveFunction Plus
The new adaptive regulation logic AdaptiveFunction Plus, is an
exclusive RHOSS S.p.a. patent that is the result of a long period of
collaboration with the University of Padua. The various algorithm
processing and development operations were implemented and tested
on the new Compact-I range in the R&D Laboratory of RHOSS S.p.a.
by means of numerous test campaigns.
Objectives
•To always guarantee optimal unit operation in the system in which it
is installed. Evolved adaptivelogic.
•To achieve the best performance from a chiller and a heat pump in
terms of energy efficiency with full and partial loads. Low consumption chillers.
Main functions
Efficiency or Precision
Thanks to the advanced control, the chiller can run on two different
regulation settings in order to obtain the best possible performance
in terms of energy efficiency and significant seasonal savings or high
water temperature precision:
1. Low consumption chillers: “Economy” OptionIt is
known that chillers work at full load for only a very small
percentage of their operating time and at partial load for
most of the season. Therefore, the power they must supply
generally differs from the nominal design power, and partial
load operation significantly affects seasonal energy performance and consumption.
This makes it necessary for the unit to run as efficiently as possible with partial loads. The controller therefore ensures that the
water flow temperature is as high as possible (when operating as
a chiller) or as low as possible (when operating as a heat pump)
whilst being compatible with the thermal loads, which means it
shifts, unlike traditional systems. This prevents energy waste associated with the unnecessarily onerous chiller temperature levels
being maintained, thereby guaranteeing that the ratio between the
power to be supplied and the energy to be used to produce it is
always optimised. The right level of comfort is finally available to
everyone!
Operating logic
In general, the actual control logics on chillers/heat pumps do not
consider the features of the system in which the units are installed;
they usually control the return water temperature and there aim is
to guarantee the operation of the chillers, giving less priority to the
system requirements.
The new AdaptiveFunction Plus adaptive logic contrasts these
logics with the objective of optimising chiller operation according to
the system characteristics and the actual thermal load. The controller
regulates the flow water temperature and adjusts itself according to
the operating conditions using:
• the information contained in the return and flow water temperature
to estimate the load conditions, thanks to a particular mathematical
function;
•a special adaptive algorithm that uses this estimate to vary the values and the start-up and switch-off limit values of the compressors;
the optimised compressor start-up management guarantees a
precision water supply to the user, reducing the fluctuation around
the set-point value.
6
,2. High precision: “Precision” Option
With this operating method, the unit works at a fixed set-point.
Therefore, the “Precision” option guarantees precision and reliability in all applications that require a controller that guarantees
a more accurate constant water supply temperature, and where
particular humidity control is required. However, it is always recommended to use a storage tank with greater system water content
in process applications to guarantee high system thermal inertia.
Compact-I MD
Structural features
TCAITY-THAITY 236÷260 models
Structural features
○○ Load-bearing structure and panels in galvanised and RAL 9018
painted sheet metal; galvanised steel sheet metal base.
○○ Hermetic rotary Scroll compressors. The first compressor with
inverter drive, the second one coupled in tandem at a fixed speed
for control of the variable capacity from 27% to 103% of the nominal
power, with reduction of the inrush current during start-up and power
factor correction of the automatic utility towards the mains. They are
complete with external thermal protection and crankcase heater
activated automatically when the unit stops (as long as the electrical
supply to the unit is preserved).
○○ Adequately insulated, braze-welded plate water side heat exchange in stainless steel complete with anti-freeze heater.
○○ Air side exchanger composed of coil with copper pipes and aluminium fins. Complete with protection grille.
○○ Electric helical fans with external rotor, supplied with internal
circuit breaker protection and complete with protection mesh.
○○ Proportional electronic device for pressure regulation and continuous
regulation of the rotation speed of the fans.
○○ Male threaded hydraulic connections.
○○ Water heat exchanger differential pressure switch that protects
the unit from any water flow interruptions.
○○ Outdoor air temperature probe.
○○ Cooling circuit made with an annealed copper pipe (EN 127351-2) complete with: dryer filter, load connections, high pressure side
pressure switch, pressure transducer on both the high and low pressure sides, electronic thermostatic expansion valve , cycle inversion
valve (for THAITY only), liquid receiver (for THAITY only), gas separator and check valve.
○○ Unit with IP24 protection rating.
○○ Control with AdaptiveFunction Plus operation.
○○ The unit is complete with a charge of R410A refrigerant.
Available Installations
Standard:
Installation without pump and without water buffer tank
Pump (main circuit):
P1 – Installation with pump.
P2 – Installation with increased static pressure pump.
DP1 – Installation with double pump, including an automatically
activated pump in stand-by. DP2 – Installation with increased
static pressure double pump, including an automatically activated
pump in stand-by.
PI1 - Set up with pump featuring constant speed control (variable
system flow rate).
PI2 – Set up with pump featuring increased head pressure and
constant speed control (variable system flow rate).
DPI1 – Set up with double pump, of which one in standby with
automatic operation and constant speed control (variable system
flow rate).
DPI2 – Installation with increased static pressure double pump,
including an automatically activated pump in stand-by. with continuous speed adjustment (variable capacity of the system).
Electrical Control Board
○○ The electrical panel can be accessed by opening the front panel,
in compliance with IEC Standards in force; it can be opened and
closed using specific tools. It features a thermostat-controlled cooling
fan.
○○ Complete with:
• electrical wiring for 400V-3ph+N-50Hz power supply voltage;
• auxiliary circuit power supply 230V-1ph+N-50Hz derived from
main power supply;
• general main power supply switch with interlocking safety door
isolator;
• inverter compressor protection fuses
• circuit breaker to protect the fixed speed compressor;
• protection fuse for the auxiliary circuit;
• Remote unit controls: remote on/off (SCR), remote summer/winter
(SEI), CGA auxiliary generator control (boiler), KRIT integrative generator control, unit forced drain (FDL), lock lamp (LBG) and compressor operation lamps (LFC);
• remote machine commands and controls.
○○ Programmable electronic board with microprocessor, controlled by keyboard inserted in the machine or by using the remote
keyboard (KTR) controlled up to 50 metres: Use the KR200 kit for
distances greater than 50 m up to 200 m.
○○ This electronic board performs the following functions:
• regulation and control of the unit outlet water temperature settings; of the cycle inversion; of the safety timers; of the circulation
pump; of the system compressor and pump hour-run meter; of the
electronic anti-freeze protection which cuts in automatically when the
machine is switched off; and of the functions which control the operations of the individual parts making up the machine;
• complete protection of the unit, possible shutdown and display of
all the triggered alarms;
• total compressor and inverter protection by means of continuously
monitoring the current absorbed by the compressor and operating
pressures. The compressor can modulate automatically, regardless
of the request if it goes out of its proper field of operation.
• multi-language display management (Italian, English, French,
German, Spanish);
• electronic expansion valve management (EEV);
• management of compressor discharge temperature and inlet and
flow pressures;
• display the programmed set-points via the display; the in/out water temperature via the display; the alarms via the display; the chiller
or heat pump operation via Led;
• self-diagnosis with continual checking of the machine oeprational
status;
• user interface menu;
• alarm code and description;
• alarm history management (menu protected by factory password).
○○ In particular, for every alarm, the following are memorised:
• date and time of intervention;
• alarm code and description;
• in/out water temperature values as soon as the alarm was triggered;
• alarm delay time from the switch-on of the connected device;
• compressor status at the time of the alarm;
Tank & Pump (main circuit):
ASP1 – Installation with pump and water buffer tank.
ASP2 – Installation with increased static pressure pump and water
buffer tank.
ASDP1 – Installation with double pump, including an automatically
activated pump in stand-by and storage.
ASDP2 – Installation with increased static pressure double pump,
including an automatically activated pump in stand-by and storage.
ASPI1 – Set up with pump and tank featuring constant speed control
(variable system flow rate).
ASPI2 – Set up with pump and tank featuring increased pressure
head and constant speed control (variable system flow rate).
7
Compact-I MD
○○ Advanced functions:
• set-up for serial connection (KRS485, KFTT10, KBE, KBM,
KUSB accessory);
• possibility of having a digital input for remote management of the
double set-point;
• possibility of having a discrete input for total recovery management (RC100), the desuperheater (DS) or for the production of domestic hot water by means of a 3-way diverter valve (VDEV). In this
case, there is the possibility of using a temperature probe instead of
the discrete input (see specific section for more information);
• possibility to have an analogue input for the shifting set-point via
a 4-20mA remote signal;
• configured to manage time slots and work parameters with the
possibility of daily/weekly operation planning;
• check-up and verification of the scheduled maintenance status;
• computer-assisted unit testing;
• self-diagnosis with continual checking of the machine oeprational
status.
○○ Set-point regulation via the AdaptiveFunction Plus with two
options:
• fixed set-point (Precision option);
• set-point slidinge (Economy options).
○○ Compressor drive control serial connection to the programmable
electronic board.
TCAITY-THAITY 236÷260 Accessories
Factory Fitted Accessories
FDL – Forced Download Compressors Function. Compressor modulation to limit the absorbed current and power (digital input). Also used
as a "night mode" function to limit noise during night-time operation
SIL – Silenced set-up (sound-proof compressor compartment + compressor ear muff)
FI15 – Condensation control with fans featuring brushless EC motor
with constant speed control up to the outside air temperature of -15°C
RAE1 - 27W electric pump antifreeze heater (available for P1-P2PI1-PI2- ASP1-ASP2-ASPI1-ASPI2 set ups); prevents the risk of the
water inside the pump becoming ice when the machine is switched off
(provided the unit remains powered)
RAE2 - 27W double electric pump antifreeze heater (available for
DP1-DP2- DPI1-DPI2- ASDP1-ASDP2 set ups); prevents the risk
of the water inside the pump becoming ice when the machine is
switched off (provided the unit remains powered)
RAS - 300W antifreeze electric heater for water buffer tank (available for ASP1- ASP2 -ASDP1 -ASDP2 -ASPI1- ASPI2 installations);
to prevent the risk of ice formation in the water buffer tank when the
machine is switched off (as long as the unit is not disconnected from
the power supply)
RAB – Base antifreeze heater (THAITY)
RAP – Unità con batterie di condensazione rame/alluminio preverniciato
BRR – Unit with pre-painted copper/aluminium condensation coils
BRH - Units with copper/aluminium condensing coils with hydrophilic
treatment (for THAITY)
V3V – Unit complete with 3-way diverter valve for the production of
domestic hot water. Available only with PUMP set-up – single electric
pump, not available with DS and RC100
DSP – Double set-point via digital consensus (incompatible with the
CS accessory) Only with Precision setting
CS – Scrolling set point via analogue signal 4-20 mA (incompatible
with the DSP accessory). Only with Precision setting.
DS - Desuperheater. Also active during winter operation for THAITY
RC100 - Heat recovery unit with 100% recovery
LDK - Refrigerant leak detector
EEM – Energy Meter. Measure and display values of the electrical
units - See specific section for more information
GM - Refrigerant circuit high and low pressure gauges.
8
Structural features
Accessories supplied separately
KSA – Rubber anti-vibration mountings
KFA – Water filter
KRIT – Additional electrical resistance for heat pump, controlled by
regulation
KVDEV – 3-way valve in protective casing for the production of domestic hot water, managed by the setting. Available only with Pump set
up, not available with V3V set up mounted
KEAP – Outdoor air temperature probe for set-point compensation (as
an alternative to the outdoor temperature probe fitted), incompatible
with the CS accessory
KTRD - Thermostat with display
KTR – Remote keypad for control at a distance with LCD display and
same functions as the machine. Connection must be made with a
6-wire telephone cable (maximum distance 50 m) or with KRJ1220/
KRJ1230 accessories. For greater distances up to 200 m, use an
AWG 20/22 shielded cable (4 wires+shield, not supplied) and the
KR200 accessory
KRJ1220 – Connection cables for KTR (20 m length)
KRJ1230 - Connection cables for KTR (30 m length)
KR200 - Remote Control Kit for the KTR accessory for distances greater than 50 m and up to 200 m (AWG shielded cable not supplied)
KRS485 - RS485 interface for serial communication with other devices (proprietary protocol; Modbus RTU protocol)
KFTT10 - LON interface for serial communication with other devices
(LON protocol)
KBE - Ethernet interface for serial communication with other devices
(BACnet IP protocol)
KBM - RS485 interface for serial communication with other devices
(BACnet MS/TP protocol)
KUSB - RS485/USB serial converter (USB cable supplied)
Compact-I MD
Technical Data
Technical Data
Table “A”: Technical Data
TCAITY model
236
245
250
260
11/34,5/35,4
14,8/46,1/47,3
16,1/50,3/51,6
18,2/58,6/60,2
5,07
4,69
5,00
4,93
11/34,3/35,2
14,7/45,7/46,9
16/50/51,3
18,2/58,3/59,9
Application with fan coil
Cooling capacity MIN/NOM/MAX (1)
kW
ESEER +
Nominal cooling capacity (1) (*) EN 14511:2013
kW
EER EN 14511:2013 (1) (*)
2,56
2,96
2,96
2,71
ESEER EN 14511:2013
4,61
4,19
4,23
4,48
Application radiant
Cooling capacity MIN/NOM/MAX (3)
kW
13,7/41,5/43,1
18,5/55,9/58,1
20/60,9/63,3
24,3/75,5/78,6
Nominal cooling capacity (3) (*) EN 14511:2013
kW
13,6/41,2/42,8
18,4/55,4/57,5
20/60,4/62,8
24,3/75/78
3,27
3,58
3,72
3,67
EER EN 14511:2013 (3)
Sound pressure (5) (∆)
dB(A)
54
56
56
57
Sound power (6) (∆)
dB(A)
78
80
80
81
Scroll compressor
Scroll regulated by inverter
Fans
n° x kW
Heat exchanger water content
l
Heat exchanger nominal flow water side (1)
l/h
1x 0,61
2 x 0,61
2 x 0,61
3,8
3,8
4,4
2 x 0,61
5,1
5900
7900
8600
10100
Water side heat exchanger nominal pressure drops (1)
kPa
33
56
39
36
Residual head (P1/PI1 mounting) (1)
kPa
129
101
114
111
Residual head (P2/PI2 mounting) (1)
kPa
212
182
196
193
Residual head (ASP1/ASPI1 mounting) (1)
kPa
126
96
109
104
Residual head (ASP2/ASPI2 mounting) (1)
kPa
210
178
190
186
Nominal heating capacity RC100 (±)
kW
Nominal flow rate/pressure drop RC100 (±)
m³/h/kPa
Nominal heating capacity DS (±)
kW
Nominal flow rate/pressure drop DS (±)
m³/h/kPa
Tank water content
l
Amount of R410A refrigerant
kg
Type / Amount of Oil
l
40,1
54
63
69,8
1,3 / 12
1,7 / 12
1,8 / 16
2,1 / 16
14,6
19,4
20,6
24,2
6,9 / 45
9,3 / 46
10,8 / 49
12 / 46
80
150
150
150
9,17
11,3
18,5
19,83
PVE (FV68S)/ 3.4 PVE (FV68S)/ 3.4 PVE (FV68S)/ 3.4 POE (160SZ) / 6.6
Electrical data
236
245
250
260
Absorbed power in summer mode NOM (1) (●)
kW
13,2
15,1
16,6
21,2
Absorbed power in summer mode NOM (3) (●)
kW
12,3
14,9
15,8
19,9
Pump absorbed power (P1/ASP1 / PI1/ASPI1)
kW
1,04
1,04
1,04
1,04
Pump absorbed power (P2/ASP2 / PI2/ASPI2)
kW
1,73
1,73
1,73
1,73
Electrical power supply
V-ph-Hz
Auxiliary power supply
V-ph-Hz
Nominal current (■)
A
26,4
32,2
36,1
45,4
Maximum current (■)
A
32,3
41
42,4
54,5
Starting current (■) (7)
A
80
78
82
147
Pump absorbed current (P1/ASP1 / PI1/ASPI1)
A
1,86
1,86
1,86
1,86
Pump absorbed current (P2/ASP2 / PI2/ASPI2)
A
3,15
3,15
3,15
3,15
236
245
250
260
2660
Dimensions
Water outlet
230-1-50
Width
mm
1660
2660
2660
Height
mm
1570
1570
1570
1570
Depth
mm
1000
1000
1000
1000
Water connections
Ø
2”
2”
2”
2”
(1) In the following conditions: Condenser inlet air temperature 35°C; chilled water
temperature 7°C; temperature differential at evaporator 5°C.
(3) In the following conditions: Condenser inlet air temperature 35°C; chilled water
temperature 18°C; temperature differential at evaporator 5°C.
(5) Sound pressure level in dB(A), referring to a 5 m distance from the unit, with
directionality factor = 2.
(6) Sound power level in dB(A) on the basis of measurements taken in accordance with UNI EN-ISO 9614 and Eurovent 8/1 Standards.
(7) The value of the inrush current is valid upon the activation of the second
compressor (Fix Speed Compressor).
(±) Recovery unit heating capacity Conditions referring to the unit operating
with chilled water temperature 7°C, differential temperature due to evaporation of 5 K, hot water temperature produced equivalent to 40/45°C (RC100)
50/60°C (DS). NB. With heat pumps operating in winter mode with DC active,
the heating capacity available is decreased from the portion supplied to the
desuperheater.
(■) Current absorbed by compressors and fans.
(●) Power absorbed by compressors and fans.
(*) The data according to EN 14511 refer to the Standard set up. Refer to the
section "Technical Note Attachments" for information relating to the Pump and
Tank&Pump set up.
(∆) With the SIL accessory, the value decreases by 3dB(A).
ESEER (European Sesonal EER) European average seasonal efficiency.
ESEER+ with AdaptiveFunction Plus logic.
9
Compact-I MD
Technical Data
Table “A”: Technical Data
THAITY model
Application with fan coil
Cooling capacity MIN/NOM/MAX (1)
ESEER +
Nominal cooling capacity (1) (*) EN 14511:2013
EER EN 14511:2013 (1) (*)
ESEER EN 14511:2013
Heating capacity MIN/NOM/MAX (2)
Nominal heating capacity (2) (*) EN 14511:2013
COP EN 14511:2013 (2) (*)
Application radiant
Cooling capacity MIN/NOM/MAX (3)
Nominal cooling capacity (3) (*) EN 14511:2013
EER EN 14511:2013 (3)
Heating capacity MIN/NOM/MAX (4)
Nominal heating capacity (4) (*) EN 14511:2013
COP EN 14511:2013 (4) (*)
Energy class (§)
Sound pressure (5) (∆)
Sound power (6) (∆)
Scroll compressor
Fans
Heat exchanger water content
Heat exchanger nominal flow water side (1)
Water side heat exchanger nominal pressure drops (1)
Water side heat exchanger nominal pressure drops (2)
Residual head (P1/PI1 mounting) (1)
Residual head (P2/PI2 mounting) (1)
Residual head (ASP1/ASPI1 mounting) (1)
Residual head (ASP2/ASPI2 mounting) (1)
Nominal heating capacity RC100 (±)
kW
kW
kW
kW
kW
kW
kW
kW
dB(A)
dB(A)
245
250
260
11/34,5/35,4
5,07
11/34,3/35,2
2,56
4,61
8,8/39,6/40,9
8,9/39,9/41,2
3,22
14,8/46,1/47,3
4,69
14,7/45,7/46,9
2,96
4,19
10,4/50,1/51,8
10,4/50,5/52,3
3,30
16,1/50,3/51,6
5,00
16/50/51,3
2,96
4,23
13/56,1/57,8
13/56,5/58,2
3,23
18,2/58,6/60,2
4,93
18,2/58,3/59,9
2,71
4,48
14,1/68,5/70,9
14,1/68,9/71,3
3,20
13,7/41,5/43,1
13,6/41,2/42,8
3,27
9,7/38,5/40,2
9,7/38,8/40,5
3,78
A++
54
78
18,5/55,9/58,1
20/60,9/63,3
18,4/55,4/57,5
20/60,4/62,8
3,58
3,72
12/50,2/52,5
13,9/53,7/56
12/50,6/53
13,9/54,1/56,4
3,85
3,90
A++
A++
56
56
80
80
Scroll regulated by inverter
2 x 0,61
2 x 0,61
3,8
4,4
7900
8600
56
39
65
49
101
114
182
196
96
109
178
190
54
63
24,3/75,5/78,6
24,3/75/78
3,67
16,2/68,9/72,1
16,3/69,3/72,6
3,84
A++
57
81
n° x kW
l
l/h
kPa
kPa
kPa
kPa
kPa
kPa
kW
1x 0,61
3,8
5900
33
42
129
212
126
210
40,1
Nominal flow rate/pressure drop RC100 (±)
m³/h/kPa
1,3 / 12
1,7 / 12
1,8 / 16
2,1 / 16
Nominal heating capacity DS (±)
kW
14,6
19,4
20,6
24,2
Nominal flow rate/pressure drop DS (±)
Tank water content
Amount of R410A refrigerant
Type / Amount of Oil
Electrical data
Absorbed power in summer mode NOM (1) (●)
Absorbed power in winter mode NOM (2) (●)
Absorbed power in summer mode NOM (3) (●)
Absorbed power in winter mode NOM (4) (●)
Pump absorbed power (P1/ASP1) / (PI1/ASPI1)
Pump absorbed power (P2/ASP2) / (PI2/ASPI2)
Electrical power supply
Auxiliary power supply
Nominal current (■)
Maximum current (■)
Starting current (■) (7)
Pump absorbed current (P1/ASP1) / (PI1/ASPI1)
Pump absorbed current (P2/ASP2) / (PI2/ASPI2)
Dimensions
Width
Height
Depth
Water connections
m³/h/kPa
6,9 / 45
9,3 / 46
10,8 / 49
12 / 46
l
80
150
150
150
kg
9,17
11,3
18,5
19,83
l
PVE (FV68S)/ 3.4 PVE (FV68S)/ 3.4 PVE (FV68S)/ 3.4 POE (160SZ) / 6.6
236
245
250
260
kW
4,1/13,2/13,3
5,1/15,1/15,2
5,5/16,6/16,8
6,8/21,2/21,4
kW
2/12,1/12,6
2,7/14,9/15,6
3,4/17,1/17,8
3,6/21,1/22
kW
4,4/12,3/12,3
5,5/14,9/15
5,9/15,8/15,9
7,3/19,9/19,9
kW
2/10/10,5
2,8/12,7/13,4
3,1/13,5/14,2
3,6/17,6/18,5
kW
1,04
1,04
1,04
1,04
kW
1,73
1,73
1,73
1,73
V-ph-Hz
Water outlet
V-ph-Hz
230-1-50
A
26,4
32,2
36,1
45,4
A
32,3
41
42,4
54,5
A
80
78
82
147
A
1,86
1,86
1,86
1,86
A
3,15
3,15
3,15
3,15
236
245
250
260
mm
1660
2660
2660
2660
mm
1570
1570
1570
1570
mm
1000
1000
1000
1000
Ø
2”
2”
2”
2”
(1) In the following conditions: Condenser inlet air temperature 35°C; chilled water
temperature 7°C; temperature differential at evaporator 5°C.
(2) In the following conditions: Evaporator inlet water temperature 7°C B.S., 6°C
B.U.; hot water temperature 45°C; temperature differential at evaporator 5°C.
(3) In the following conditions: Condenser inlet air temperature 35°C; chilled water
temperature 18°C; temperature differential at evaporator 5°C.
(5) Sound pressure level in dB(A), referring to a 5 m distance from the unit, with
directionality factor = 2.
(6) Sound power level in dB(A) on the basis of measurements taken in accordance with UNI EN-ISO 9614 and Eurovent 8/1 Standards.
(7) The value of the inrush current is valid upon the activation of the second compressor (Fix Speed Compressor).
10
236
(±) Recovery unit heating capacity Conditions referring to the unit operating with
chilled water temperature 7°C, differential temperature due to evaporation of 5 K,
2 x 0,61
5,1
10100
36
47
111
193
104
186
69,8
hot water temperature produced equivalent to 40/45°C (RC100) 50/60°C (DS).
NB. With heat pumps operating in winter mode with DC active, the heating capacity available is decreased from the portion supplied to the desuperheater.
(■) Current absorbed by compressors and fans.
(●) Power absorbed by compressors and fans.
(*) The data according to EN 14511 refer to the Standard set up. Refer to the
section "Technical Note Attachments" for information relating to the Pump and
Tank&Pump set up.
(∆) With the SIL accessory, the value decreases by 3dB(A).
ESEER (European Sesonal EER) European average seasonal efficiency.
ESEER+ with AdaptiveFunction Plus logic
(§) In average climatic conditions according to Regulation n ° 811/2013
Compact-I MD
Energy efficiency at partial loads
Energy efficiency at partial loads
ESEER index
◦◦ The E.E.R. index represents an estimate of the energy efficiency of
the cooling unit in nominal design conditions. In reality, the operating
time of a chiller in nominal conditions is usually less than the operating time in partial load conditions.
◦◦ E.S.E.E.R. index (European Seasonal E.E.R.) is an index that estimates the average seasonal energy efficiency of the cooling unit in four
load and water temperature conditions. Generally, two chillers with
the same E.E.R. value can have different E.S.E.E.R. values. In fact,
for a water-cooled cooling unit, the average energy efficiency depends on the design choices and the temperature of the water entering
the condensing exchanger.
◦◦ The E.S.E.E.R. energy index introduced by the European Community (E.E.C.C.A.C. project - Energy Efficiency and Certification of Central Air Conditioners), is characterized by the water temperatures (see
table “B”) and by the energy weights that are assigned to the four load
conditions considered in the calculation: 100%, 75%, 50% and 25%.
ESEER
3*EER100%+ 33*EER75%+ 41*EER50%+ 23*EER25%
100
where EER100%EER75%EER50%EER25% represent the efficiencies
of the cooling unit in the four load conditions and at the temperatures
indicated in table “B"
The data is calculated by using the Eurovent method.
Table "B": load and condenser inlet air temperature conditions
Load
100%
75%
50%
25%
ESEER
35°C
30°C
25°C
20°C
New seasonal efficiency indices according to EN 14825: SCOP and SEER
Standard EN 14825 defines the calculation method to determine the summer (SEER) and winter (SCOP) seasonal efficiency indices of heat pumps, summing the machine's performance in one value that considers the temperature variations of outdoor air, water produced, and partialisation
degree of the compressor.
These indices are useful to calculate the system's building system energy efficiency that services the unit.
SCOP heating seasonal efficiency of an air-water heat pump in compliance with EN14825, is according to the following variables:
VARIABLE
DESCRIPTION
Project temperature:
Europe divided into 3 climate bands:
Colder (Helsinki climate): -22°C
Average (Strasbourg climate): -10°C
Warmer (Athens climate): 2°C
User side water temperature:
Radiant panel: 35°C fixed or variable according to the outdoor air temperature
Fancoil: 45°C fixed or variable according to the outdoor air temperature
Radiators: 55°C fixed or variable according to the outdoor air temperature
Compressor partialisation degree
The standard considers, with due coefficient corrective features, the inefficiency of partial
loads with "On-Off" operation of the heat pumps.
Outdoor air temperature frequency occurrence
The number of hours of occurrence of each outdoor air temperature value expressed in
degrees, during the heating season.
Bivalent T
Temperature at which pdc fulfils the load at 100%.
Colder (Helsinki climate): -7°C or lower
Average (Strasbourg climate): 2°C o più bassa
Warmer (clima di Atene): 7°C or lower
SCOP is calculated by using the Bin Method as an average weight of efficiency (COP) of the heat pump on the frequency of occurrence of outdoor
air temperature.
Even the seasonal efficiency in SEER cooling mode depends on a unique design temperature and is indicated for 2 types of distribution:
◦◦ Radiant panel (Water T at a fixed point equivalent to 18°C).
◦◦ Fan coil (water T at a fixed point equivalent to 7°C or variable according to the outdoor air temperature)
The SCOP and SEER values of Compact-I MD units are shown in the section "Technical Notes Attached", which refer to applications with radiant
panels and, with regard to SCOP, to Average climate. Thanks to the variation in temperature of the water produced according to the outdoor air
temperature and Inverter DC technology, the values of efficiency are particularly high.
11
Compact-I MD
Electronic controls
Electronic controls
Electronic controls
The keyboard with display makes it possible to view the working
temperature and all the unit process variables, as well as providing
access to setting parameters for the operating set points and their
modification. For purposes of technical assistance, it allows password- protected access to the unit's management parameters (access
for authorised personnel only).
KTR - Remote keyboard
The remote keyboard with display (KTR) allows the remote control
and display of all of the unit's digital and analogue process variables.
It is therefore possible to control all the machine functions directly in
the room. It allows setting and management of time periods.
!
Prg
Esc
DISPLAY: displays the numbers and the values of all the parameters (i.e. outlet water temperature etc.), any alarm codes
and resource status by means of strings.
DISPLAY:
displays the numbers and the values of all the parameters
(i.e. outlet water temperature etc.), any alarm codes and
resource status by means of strings.
!!
!
ALARM key:
makes it possible to display the code and reset any
alarms.
Prg
PRG key:
makes it possible to programme the machine's fundamental
functioning parameters.
PROGRAM key: makes it possible to programme the machine's fundamental functioning parameters
Esc
ESC key: makes it possible to switch the unit on and off
ON/OFF key:
makes it possible to switch the unit on and off.
UP key:
used to scroll
! through the list of parameters, statuses and any! alarms; makes it possible to modify
set points
!
MODE/ENTER key
makes it possible to switch from chiller to heat pump
operation and vice versa.
DOWN key:
used to scroll through the list of parameters, statuses and
any alarms; makes it possible to modify set points
12
ALARM key: makes it possible to display the code and reset
any alarms
UP key: used to scroll through the list of parameters, statuses and
any alarms; makes it possible to modify set points
ENTER key:allows confirmation of the selected parameters
DOWN key: used to scroll through the list of parameters, statuses and any alarms; makes it possible to modify set points
Note:
The temporary presence of two devices, on-board machine keyboard
and remote keyboard, will cause the on-board machine terminal to be
disabled.
Compact-I MD
Serial Connection
Serial Connection
Serial Connection
Supervision
All units are equipped with an electronic controller to communicate
with an external BMS via a serial communication line by means of
the SS RS485 serial interface accessory (proprietary protocol or
ModBus® RTU) and the following converters:
○ KUSB – RS485/USB serial converter;
Also available are FTT10 accessory (LON protocol), KBE accessory,
Ethernet interface - KBM accessory - RS485 interface (BACnet MS/TP
protocol).
RS485
RS485
In general, a supervision system allows access to all unit functions,
such as:
◦
making all settings which are accessible through the keyboard;
○ reading all process variables of the inputs and outputs, whether
digital or analogue;
○ reading the various alarm codes which are present, and
resetting them as necessary.
RS485
KUSB
Clock card
The clock board, assembled by default, enhances unit flexibility and
efficiency, displaying the date/time and allowing machine management with daily and weekly start/stop time bands, with the possibility
of changing the set-points. The time bands are set and managed via
the keyboard.
Example of display
Prg
Esc
13
Compact-I MD
Perfomance
Residual head and pressure drops TCAITY - THAITY
Graph “1”: pressure drops in 236÷260 heat exchangers
Calculation of Pressure Drops
The water flow rate at the exchanger is calculated according to the
following formula:
G = (Q x 860) : ΔT
Where:
G (l/h) = water flow rate in the exchanger;
Q (kW) = exchanged power, which could be QF (for the evaporator)
or QT (for the condenser), according to the given heat exchanger;
ΔT (°C) = temperature differential;
The pressure drops can be obtained using RHOSS software, read
on the graph at the side or calculated with the following approximate
formula:
100
Dp [kPa]
260
236- 245
10
250
Δpw = Δpwnom x (G : Gnom)²
1
1
10
100
Nota bene:
For all machines, refer to the admissible operating limits and thermal differences (ΔT).
Q [mc/h]
Δpw (kPa) = nominal pressure drop at the given heat exchanger
(Technical data table);
G (l/h) = water flow rate at the given heat exchanger;
Graph “3”: Residual head 236÷260
unit P1
160
Graph “3”: Residual head 236÷260
unit P2
250
236
140
200
Dp [kPa]
Dp [kPa]
120
100
80
60
250
40
260
245
20
0
236
0
5
10
15
Q [mc/h]
150
245
100
236
140
0
20
0
5
250
250
100
Dp [kPa]
Dp [kPa]
15
20
236
200
80
60
40
245
20
150
100
5
10
250
50
260
245
0
0
Q [mc/h]
14
10
Q [mc/h]
Graph “3”: Residual head 236÷260
unit ASP2
120
0
260
50
Graph “3”: Residual head 236÷260
unit ASP1
160
250
15
20
0
5
10
Q [mc/h]
15
260
20
Perfomance
Compact-I MD
Perfomance
By means of the RHOSS Up To Date software selection, you are able to obtain:
1. Unit performance data according to design conditions
(a summary is also available in the section “Technical Note Attachments”);
2. Technical data of the selected unit, heat exchanger pressure drops and residual head if the unit is supplied with pumps;
3. Performance data of RC100 and DS heat recovery.
15
Compact-I MD
Perfomance
Sound power and pressure levels
Sound power level in dB for octave bands
Model
TCAITY
THAITY
Sound pressure level in dB(A)
125 Hz
250 Hz
500 Hz
1000 Hz
2000 Hz
4000 Hz
8000 Hz
Lw dB(A)
Lp 5m
236
87
79
74
72
71
63
57
78
54
245
86
78
76
74
74
64
61
80
56
250
87
79
76
74
74
64
61
80
56
260
88
81
78
75
74
64
61
81
57
Lw
Sound power level in dB(A) on the basis of measurements taken in accordance with UNI EN-ISO 9614 and Eurovent 8/1 Standards.
Lp
Sound pressure level in dB(A) referring to the distance indicated, with a directionality factor equal to 2.
Note: The Eurovent certification refers to the sound power value in dB(A) and it is the only binding acoustic data. The sound pressure levels refer to values calculated from the sound power for units installed in free field with directionality factor Q=2. It is not possible to extrapolate sound
pressure values for distances less than 10 m. With outdoor air temperatures below 35°C, the machine decreases its noise to a value below the
nominal value indicated in the table.
SIL accessory: With the SIL accessory, sound pressure must be corrected by 2dBA.
FDL accessory - Forced download compressors
The FDL accessory (forced reduction of the power consumed by the unit) allows power consumption to be restricted according to the utility requirements. It is possible to use the FDL - Forced Download Compressors with "night mode" to reduce noise during night-time operation, by limiting
compressor operation to its maximum frequency value. The function, which can be set from the unit display, can be enabled via a digital signal,
using time bands or as an input in the case of a serial connection with an external BMS via Modbus.
In the presence of the EEM accessory, which allows the power consumed to be instantaneously measured, a specific maximum consumed power
value can be set and any utility requirement complied with.
EEM accessory - Energy Meter
The EEM accessory allows certain unit features, such as those below, to be measured and displayed:
•Power supply voltage and instantaneous current consumption of the unit
•Instantaneous electric power consumed by the unit
•Instantaneous power factor of the unit
•Electricity consumption (kWh)
If the unit is connected via a serial network to a BMS or external supervisory system, the trends of the measured parameters can be stored and
the operating status of the unit itself checked.
Attention: in order to use the EEM accessory, the unit must be powered with 400V-3ph + N – 50Hz
16
Compact-I MD
Functioning limits
Functioning limits
Summer mode
Winter mode
T (°C)
60
45
42
38
55
20
40
35
10
30
0
1
4
10 11 12
17
19
25
t (°C)
-10
-15
-15
-18
In summer mode:
Maximum water inlet temperature 25°C.
Permitted temperature differentials through the heat exchangers
○○
○○
○○
Temperature differential at the evaporator ΔT = 4 ÷ 8°C.
Minimun water pressure 0,5 Barg.
Maximum water pressure: 6 Barg
T (°C)
Outdoor air temperature (D.B.)
t (°C)
Temperature of the water produced
-10
-5
0
5
10
15
20
40
In winter mode:
Maximum water inlet temperature 55°C
Permitted temperature differentials through the heat exchangers
○○
○○
○○
Temperature gradient on the condenser ΔT = 4 ÷ 8°C.
Minimun water pressure 0,5 Barg.
Maximum water pressure: 6 Barg
Standard functioning.
Functioning with condensing control FI15
In the permitted field of operation, the compressor and inverter are protected by a controller by means of continuous monitoring of the current
absorbed by the compressor, operating pressure and output temperature. The compressor can modulate the rotation speed automatically,
regardless of the set-point request if it goes out of its proper field of operation.
17
Compact-I MD
Dimensions and volume
Dimensions and volume TCAITY – THAITY 236 standard set-up, Pump – Tank & Pump
p
c
6
0 OFF
6
5
14
12
o
10
m
16
7
l
b
7
a
1660
mm
b
1710
c
1000
e
1570
f
75
g
d
10.
11.
12.
13.
14.
15.
16.
17.
d
1045
4
f
Control panel;
Isolator;
Electrical Control Board;
Compressor;
Pump (P - ASP installation);
Fan;
Anti-vibration support (KSA accessory);
Coil;
Protection network;
Model
236
8
3
9
4
13
n
15
1.
2.
3.
4.
5.
6.
7.
8.
9.
1
2
e
11
17
l
I ON
a
g
273
h
i
Expansion vessel;
Power supply inlet;
Water inlet;
Water outlet;
Manometer;
Storage tank drain (ASP installation);
Condensate drain (THAETY models);
Storage tank (ASP installation).
h
1210
i
179
l
30
m
942
n
232
o
196
p
385
Dimensions and volume TCAITY – THAITY 236 standard set-up, P - ASP witch accessories DS15/RC100
b
c
16
2
OFF
ON
1
3
17
11
a
4
g
4
6
5
10
h
13
7
9
8
12
15 14
18
i
mm
a
1565
b
1070
c
1660
l
10.
11.
12.
13.
14.
15.
16.
17.
18.
Control panel;
Isolator;
Electrical Control Board;
Compressor;
Water inlet recovery;
Exit recovery water;
Main heat exchanger water inlet;
Main heat exchanger water outlet;
Manometer;
Model
236
18
e
f
d
1.
2.
3.
4.
5.
6.
7.
8.
9.
17
d
75
e
150
f
184
g
115
18 m
l
n
p
o
Power supply inlet;
Pump housing (ASDP installation);
Pump housing (P - ASDP installation);
Storage tank (ASP – ASDP installation);
Expansion vessel;
Water system drain;
Fan;
Finned coil;
Anti-vibration support.
h
300
i
100
l
28
m
942
n
273
o
1210
p
179
Compact-I MD
Dimensions and volume
Dimensions and volume TCAITY – THAITY 245÷260
b
2
OFF
ON
c
1
3
15
15
9
a
4
5
6
e
4
f
8
11
10
13 12
7
16
g
d
1.
2.
3.
4.
5.
6.
7.
8.
14
Control panel;
Isolator;
Electrical Control Board;
Compressor;
Water inlet;
Water outlet;
Manometer;
Power supply inlet;
Model
245
250
260
mm
mm
mm
a
1565
1565
1565
b
1070
1070
1070
c
2315
2315
2315
d
75
75
75
e
195
195
195
h
16
9.
10.
11.
12.
13.
14.
15.
16.
Pump housing (ASDP installation);
Pump housing (P - ASDP set up);
Storage tank (ASP – ASDP installation);
Expansion vessel;
Water system drain;
Fan;
Finned coil;
Anti-vibration support (KSA accessory).
f
233
233
233
i
g
385
385
385
h
l
h
28
28
28
m
i
942
942
942
l
544
544
544
n
m
1562
1562
1562
n
160
160
160
Dimensions and clearances TCAITY – THAITY 245÷260 DS and RC100 set-up
b
2
OFF
ON
c
1
3
17
17
11
a
4
g
4
e
f
d
1.
2.
3.
4.
5.
6.
7.
8.
9.
16
6
5
10
13
7
9
8
h
12
15 14
18
i
10.
11.
12.
13.
14.
15.
16.
17.
18.
Control panel;
Isolator;
Electrical Control Board;
Compressor;
Water inlet recovery;
Exit recovery water;
Main heat exchanger water inlet;
Main heat exchanger water outlet;
Manometer;
Model
245
250
260
mm
mm
mm
a
1565
1565
1565
b
1070
1070
1070
c
2315
2315
2315
l
d
75
75
75
e
150
150
150
f
184
184
184
g
115
115
115
18 m
l
n
p
o
Power supply inlet;
Pump housing (ASDP installation);
Pump housing (P - ASDP installation);
Storage tank (ASP – ASDP installation);
Expansion vessel;
Water system drain;
Fan;
Finned coil;
Anti-vibration support.
h
300
300
300
i
100
100
100
l
28
28
28
m
942
942
942
n
544
544
544
o
1562
1562
1562
p
160
160
160
19
Compact-I MD
Clearance and positioning
Clearance and positioning
TCAITY-THAITY 236
TCAITY-THAITY 245÷260
L1
L1
L2
L4
L2
L4
L3
L3
L1
mm
800
L1
mm
800
L2
mm
1000
L2
mm
800
L3
mm
800
L3
mm
1000
L4
mm
800
L4
mm
800
Handling and storage
○○
○○
○○
Movement of the unit must be performed with care, in order to avoid damage to the external structure and to the internal mechanical and
electrical components.
Do not stack units.
The temperature limits for storage are -9÷45°C.
Installation and connection to the system
○○
○○
○○
○○
○○
○○
○○
○○
○○
○○
○○
The unit is designed for outdoor installation.
The unit is equipped with male threaded water connections.
The unit must be installed with the specified clearances with allowance for the water and electrical connections.
The unit can be equipped with anti-vibration mounts upon request (KSA).
We recommend installing isolating valves that isolate the unit from the rest of the system.
It is mandatory to install a square metal mesh filter (longest side = 0.8 mm) on the unit return pipes.
The unit cannot be installed on brackets or shelving.
Correct installation and positioning includes levelling the unit on a surface capable of bearing its weight.
When the outdoor temperature is around zero, the water normally produced during the coil defrosting could form ice and make the flooring
near the unit installation area slippery.
Segregate the units if installed in areas accessible to persons under 14 years of age.
However it is installed, the coil inlet air temperature (ambient air) must remain within the set limits.
Weights
Model
TCAITY
THAITY
TCAITY P1-P2
THAITY P1-P2
TCAITY DP1-DP2
THAITY DP1-DP2
TCAITY ASP1-ASP2
THAITY ASP1-ASP2
TCAITY ASDP1-ASDP2
THAITY ASDP1-ASDP2
TCAITY PI1-PI2
THAITY PI1-PI2
TCAITY DPI1-DPI2
THAITY DPI1-DPI2
TCAITY ASPI1-ASPI2
THAITY ASPI1-ASPI2
kg
kg
kg
kg
kg
kg
kg
kg
kg
kg
kg
kg
kg
kg
kg
kg
TCAITY ASDPI1-ASDPI2
kg
THAITY ASDPI1-ASDPI2
kg
DS15
kg
BRH
accessory – Finned coil with
RC100
kg
236
245
250
427
572
607
442
592
627
442
592
627
457
612
647
452
617
632
482
652
667
477
637
652
487
657
672
487
687
702
497
707
722
452
602
637
467
622
657
462
627
642
492
662
677
487
647
662
497
667
682
497
697
712
507
717
732
20
20
20
hydrophilic
60
60treatment
70
260
635
655
655
675
660
695
680
700
730
750
665
685
670
705
690
710
740
760
20
75
The weights refer to packed units without water.
The weight of the unit at full load is obtained by adding the
weight of the tank water content
Model
Tank capacity
l
236
80
245
150
250
150
260
150
The finned coil with hydrophilic treatment is recommended in THAITY heat pumps. The surface treatment ensures better drainage of the water
condensed on the finned surface, favouring the reduction of the number of required defrost cycles during winter operation.
KEAP accessory - remote controlled outdoor air probe
For correct shifting temperature adjustment of water coming out of the heat pump, it is important that the air temperature has a significant value
and is not influenced by the incorrect position of the sensor/unit." The unit is equipped with an outdoor air temperature sensor located next to the
fin-packed heat exchanger.
If the unit is installed facing the sun and outdoor air temperature reading is therefore altered, it is possible to connect the KEAP remote control
outdoor air probe accessory. This requires the following operation:
•purchase the KEAP accessory
•disconnect the outdoor air probe from the board and connect the remote control sensor to the same clamps, following the relative instructions on the
instruction sheet.
20
Compact-I MD
Water connections
Water connections
Connection to the system
○○
○○
○○
○○
○○
○○
The unit is equipped with male threaded hydraulic connections and manual air vent valve placed outside the cabinet.
It is advisable to install shut-off valves that isolate the unit from the rest of the system.
It is mandatory to install a square metal mesh filter (longest side = 0.8 mm) on the unit return pipes.
The rate of the water that flows through the heat exchanger must not drop below the value corresponding to a temperature differential of
8°C.
During long periods of inactivity, it is advisable to drain the water from the system.
It is possible to avoid draining the water by adding ethylene glycol to the water circuit (see “Use of antifreeze solutions”).
Standard set-up
The units are installed in systems where the pumping unit and the thermal inertia are provided by the user. The pump must be installed with the
supply pressing against the machine's water intake.
2
3
1
1
Compact-I
2
Inertial storage tank (if necessary)
3
Hydraulic pump
Pump and Tank & Pump installation
The units are equipped with a pump or with a pump and a buffer tank. The unit's hydraulic circuit is complete with an expansion tank and safety
valve, air bleed and drain valves.
1
Compact-I
1
21
Compact-I MD
Water connections
Pump and Tank & Pump with INVERTER set up
○○ The units are equipped with an electric pump featuring constant speed control for variable flow rate systems. The units is complete
with a sensor to measure the pressure difference between the system's flow and return pressure. During the installation phase, the unit
must be set by following the simple procedure. With the system completely open so that the water flow rate reaches each area, read the
differential pressure value on the control panel. The value is the set-point that is to be assigned to the differential pressure to control. In the
case of system partialisation with the terminals or areas closed, the pressure differential value is kept constant by decreasing the flow rate.
The unit's hydraulic circuit is complete with an expansion tank and safety valve, air bleed and drain valves.
○○ For proper operation of the unit with this type of system set-up, you must comply with the basic rule, meaning that there must always be
a circuit branch that enables circulation of water. This can be obtained with a type of board like the one indicated in the figure, meaning
with one of the terminals equipped with a 3-way valve whilst all the remaining ones can be equipped with a 2-way shut-off valve. Alternatively, there can be a bypass located in a certain point of the hydraulic circuit. It is recommended to place the bypass or 3-way valve as far
away as possible from the unit. The bypass has the function to enable circulation of the minimum flow rate, especially during starting and
switch-off transients of the unit without interrupting flow to the evaporator. The minimum flow rate value is contained in the "Hydraulic data"
section.
○○ With the electric pump featuring constant speed control it is also possible to effectively manage the start-up while the system is cold, by
modulating the speed, allowing you to reach the operating temperatures more quickly.
Example with a 3-way valve on the last terminal
Example with a Bypass on the circuit
BY-PASS
The sizing of the By-PASS is up to the installer; it is in any case recommended to include a calibration valve to balance the system.
Pump set up with the V3V accessory (only for THAITY heat pumps)
The units in heat pumps, with Pump P1-P2-PI1-PI2 set up (single electropump), can be supplied with a factory-fitted 3-way diverter valve. This
way it is possible to manage the production of domestic hot water without the addition of external valves.
2
1
4
22
3
1
Compact-I
2
Inertial storage tank (if necessary)
3
Domestic
4
Technical water storage tank
Compact-I MD
Water connections
Minimum hydraulic circuit contents
For proper unit operation, a minimum amount of water must be ensured in the hydraulic system. The minimum water content is established on
the basis of the unit's nominal cooling capacity (table A Technical Date), multiplied by the coefficient expressed in l/kW.
If the minimum content in the system is below the minimum value indicated or calculated, it is advisable to select the TANK&PUMP accessory
complete with inertial storage tank, and install an additional tank if necessary. However, it is always recommended to use a storage tank with
greater system water content in process applications to guarantee high system thermal inertia.
Range
TCAITY THAITY 236÷260
Adjustment type
AdaptiveFunction Plus
Specific capacity
2 l/kW
Example : THAITY 236 nominal heating capacity QT :39,5 kW
Minimum system capacity QT (kW) x 2 l/kW = 39,5 kW x 2 l/kW = 79 l
Production of domestic how water DHW
The machine control is able to manage a 3-way diverter valve (V3V accessory or KVDEV accessory) to produce domestic hot water. The
diverter valve must be installed on the flow line in order to deviate the water flow from the system to the DHW side. Priority between DHW and
system can be set directly from the control panel
For the production of DHW by using the heat pump, use a technical water storage, which cannot be used directly for human consumption, and
combine it to a DHW producer.
The figure shows an example:
KACTS
KMACSI
7
1
5
2
4
6
KACTS
technical water storage tank
KMACSI
instantaneous domestic hot water
producer
1
from heat pump
2
from the mains
3
drain
4
recirculation pump
5
DHW utility
6
from the mains
7
safety valve
3
How to manage the DHW request:
○○by means of the digital input: the request is assigned by a thermostat assembled by the installer. When the thermostat closes, the unit understands that there is a DHW request and, once the conditions have been verified, the procedure is activated to meet the DHW requirements;
○○by means of temperature probe in the storage tank: a temperature probe is placed inside the storage tank, which is directly connected to the unit
board. The required set point can be configured from the panel together with the relative activation differential. In this case, the probe must be
accurately positioned and the maximum distance allowed respected due to the type of probes used.
Type of probe
description
type of probe
features
β (25/85)
NTC150
NTC OT150
50kΩ@25°C
3977 (±1%)
NTC
NTC
10kΩ@25°C
3435 (±1%)
23
Compact-I MD
Water connections
Management of an integrative source and auxiliary generator
The integrative heat source (electric heater) or an auxiliary thermal source (boiler) can be managed from the unit board.
Integrative thermal source (KRIT accessory)
An integrative thermal source is an electric resistance that runs together with the THAITY heat pump in winter mode. By means of the unit's control,
it is possible to control start-up and switch-off according to different variables: outdoor air temperature, delay in reaching the set-point due to high
thermal load.
Resistance is always activated during the defrost cycle and when DHW production is requested.
When there is a 3-way valve for KVDEV DHW production, the electrical resistance must be placed upstream of the valve, as illustrated in the figure.
It is always recommended to accurately check the electrical power available when integrative electrical resistances are installed.
3
2
4
5
1
7
6
Accessory KVDEV
1
2
1
24
From heat pump
1
Compact-I
2
Inertial storage tank
3
Hydraulic circuit breaker
4
Electric heater
5
3-way valve (optional)
6
Domestic
7
Technical water storage
tank
Compact-I MD
Water connections
For units assembled with Pump set up, the KVDEV kit can be installed
for managing the domestic hot water production. The 3-way valve allows
deviating the water flow from the system to the technical water tank for
the production of domestic hot water.
The kit includes two flexible pipes to connect the delivery and return of
the unit. The flexible pipes compensate the misalignment between the
system delivery and return fittings of the unit and the corresponding
KVDEV fittings even if the unit is equipped with KSA anti-vibration
supports.
The accessory must be mounted the closest possible to the heat pumps,
in order to prevent a transfer of cold water inside the domestic hot water
storage, during the passage between heat pump chiller operation to
produce domestic hot water.
The delivery and return fittings towards the system are available with 2"
connections. The kit is equipped with RAL9018 painted bonnet.
Cable gland for wiring the power supply.
IP 54 rate
Valve body technical characteristics and servomotor technical data
The diverter valve with nickel-plated bass body, chrome-plated brass ball, PTFE ball seat seal and HNBR manoeuvre rod seal, synthetic fibre (Fasit)
bar hold gaskets.
Maximum differential pressure is: 6 bar Working pressure: PN 40
Flow temperature limits: -40÷100°C
Ball manoeuvre time with 180° angle: 120 s.
The passage of fluid is always guaranteed during the manoeuvre. The actuator is contained in a sealed box fixed to the valve body via a split pin.
Nominal power supply voltage 230 V/50Hz Absorbed power 4 VA
Isolation class: II
Maximum torque: 28 Nm (230V) Auxiliary contact: 6 A 230V (on-off)
Perdita di carico (mbar)
1000
10
0,1
100
Portata (l/h)
100000
N
10.08
L
Electrical connection
1
2
F
TA N
1
Electrical panel terminal board
2
KVDEV valve
Connection of KVDEV valve to unit terminal board
25
Compact-I MD
Water connections
Auxiliary thermal source
An auxiliary generator is a heat generator that runs alternatively to the heat pump; typically, it is a boiler. When the alternative generator is activated,
the heat pump and all its auxiliaries are off, even if powered. The auxiliary generator can be enabled only for heating the systems.
Operation of the auxiliary source
The auxiliary generator can be activated according to three modes:
◦◦ manually;
◦◦ for an outdoor temperature set point;
◦◦ for a convenience criterion based on the costs of electricity and fuel (methane and butane)
◦◦ for heat Pump malfunction
4
5
5
3
2
1
Compact-I
2
Inertial storage tank
3
Hydraulic circuit breaker
4
Boiler
5
Shut-off components not managed
1
Hydraulic data
Model
Safety valve calibration of channelled water.
Heat exchanger water content
Expansion tank capacity
Expansion tank pre-load
Expansion tank maximum pressure
Tank water content ASP1/ASP2 ASPI1/ASPI2
Minimum flow rate (water differential pressure switch
intervention)
barg
l
l
barg
barg
l
l/h
236
3
3,2
14
1
3
80
4700
245
3
3,2
14
1
3
150
4700
250
3
3,8
14
1
3
150
4700
260
3
5,1
14
1
3
150
4700
The expansion tank on the machine has limited capacity to protect the hydraulic circuit inside the machine. It is the installer's duty to size and install
an expansion tank that is suitable for the system.
26
Compact-I MD
Water connections
Applications for partial (DS) and total (RC100) recovery and DHW production
Overview
Condensation heat in a chiller is usually disposed of in the air; it can be recovered intelligently by means of heat recovery, which may be partial
(DS) or total (RC100). With summer operation, a reduced value equivalent to the desuperheating of gas is recovered in the first phase, while the
second phase recovers all the condensation heat that would otherwise be lost.
In the case of a reversible heat pump, partial recovery (DS) and total recovery (RC100) can also run in winter mode. In the former case, the partial
recovery (DS) deducts a rate from the heat production in the main heat exchanger, whereas, in the latter case of total recovery, the heat production is an alternative to that of the main heat exchanger.
Below is indicative information. The provided diagrams are not complete and are used only to provide guidelines that allow a better use of the unit.
1
2
3
6
2
Chiller or Heat pump
System user side storage tank
Pump
System recovery side storage
tank
3
3
1
6
1. Chiller or heat pump set-up with DS or RC100
Chiller
With this type of system, the main hydraulic circuit of the chiller is connected to the user and produces cold water for air conditioning. The unit
can be set-up as a pump or pump and storage tank as alternative to the traditional solution seen installed in the system. The desuperheater
(DS), with which the machine can be supplied, will be connected by means of a technical water storage tank and external pump for DHW or to
the system to produce hot water for the post-heating coils of the CTA or other applications. RC100 total recovery, as an alternative to DS, can
be used in the same applications, however, the amount of heat produced is significantly higher and, at the same time, the heat level of the water
produced is lower.
Heat pump with partial recovery (DS) - 2-Pipe+DHW system
Should the unit be a reversible heat pump, summer operation is the same as the aforementioned situation of the chiller. Instead, with winter operation, the user has DHW produced from the heat pump. If the unit is equipped with a DS desuperheater, this can be also active in winter mode.
However, in this case, this value is deducted from the portion of heat from the hot water produced from the main heat exchanger.
Heat pump with total recovery (RC100) - 2-Pipe+DHW system
If the unit is a reversible heat pump fitted with total recovery (RC100), the behaviour is identical to a Polyvalent 2-pipe unit with specific application
in 2-pipe+DHW systems.
Air conditioning and the DHW production in a 2-pipe system is a typical application in hotels, hospitals, gyms and hospitality structures in general.
27
Compact-I MD
Water connections
The 2-pipe+DHW systems provide summer mode with the production of chilled water and/or simultaneous or separate production of hot water
from the heat recovery unit. In winter, however, the demand is for hot water production from the main heat exchanger and alternatively (assigning
appropriate priority) from the recovery exchanger.
The unit can run in two modes:
• AUTOMATIC: the system allows total recovery of the condensation heat and/or the production of chilled water (summer season)
• SELECT: this allows the production of hot water to the recovery heat exchanger or from the main one (winter season)
Summer season “AUTOMATIC”
Domestic
Hot water
Winter season “SELECT”
Air Conditioning
Cold water
Domestic or Air Conditioning
Hot water
Competitive advantages
The heat pump unit with total recovery, defined as 2-pipe Polyvalent, fulfils the simultaneous or separate request for hot and cold water with one
single unit, thereby optimising energy consumption and simplifying management in the 2-pipe+DHW systems.
○○ Its natural application and as a valid alternative in all conventional systems that require a chiller or heat pump with the use or integration of a boiler.
○○ The advantages are due to a single unit being used, the economic saving due to the high COP (operating with heat recovery in summer mode),
the non-use of combustible products that are harmful to the ozone so as to be defined as an ecological polyvalent unit.
○○ Fourth generation polyvalent versatile heat pump, which unlike other polyvalent units meets the typical demand in 2-pipe systems with a single
unit and in a completely flexible way.
○○ It is therefore offered on the market as the unit that guarantees fundamental aspects such as EFFICIENCY, RELIABILITY AND VERSATILITY.
Technical data DS - RC100
Model TCAITY
236
Nominal heating capacity RC100 (1)
kW
Nominal flow rate/pressure drop RC100 (1)
m3/h / kPa
Nominal heating capacity DS (1)
kW
Nominal flow rate/pressure drop DS (1)
m3/h / kPa
Model THAITY
Nominal heating capacity RC100 (1)
kW
Nominal flow rate/pressure drop RC100 (1)
m3/h / kPa
Nominal heating capacity DS (1)
kW
Nominal flow rate/pressure drop DS (1)
m3/h / kPa
245
250
260
40,1
54
63
69,8
1,3 / 12
1,7 / 12
1,8 / 16
2,1 / 16
14,6
19,4
20,6
24,2
6,9 / 45
9,3 / 46
10,8 / 49
12 / 46
236
245
250
260
40,1
54
63
69,8
1,3 / 12
1,7 / 12
1,8 / 16
2,1 / 16
14,6
19,4
20,6
24,2
6,9 / 45
9,3 / 46
10,8 / 49
12 / 46
(1) Recovery unit heating capacity Conditions referring to the unit operating with chilled water temperature 7°C, differential temperature due to
evaporation of 5 K, hot water temperature produced equivalent to 40/45°C (RC100) 50/60°C (DS). NB. With heat pumps operating in winter mode
with DC active, the heating capacity available is decreased from the portion supplied to the desuperheater.
1.1 Activation and deactivation of DS and RC100
The units set up with DS desuperheater or total recovery RC100 can activate the thermal recovery by means of an external digital input (e.g. the
KTRD accessory).
Moreover, the criterion to stop the thermal recovery can be established from the panel:
•
•
for digital contact: if the consensus is interrupted, the thermal recovery stops as well. This mode meets the requirement to carry out a temperature control system of the storage tank connected to the recovery;
for maximum return temperature: the said limit is set from the panel on the machine or from the remote keyboard (KTR accessory). The
recovery keeps operating until the return temperature is lower than the configured set point. This mode is suitable for maximising the use of
the thermal recovery.
DS/RC100 water connetcions place
28
Compact-I MD
Water connections
2. Set-up of a 3-way heat pump (KVDEV) and domestic hot water production (DHW) and possibly a desuperheater (DS) at the same
time
1
2
3
4
5
6
2
4
Heat pump
System user side storage tank
Pump
3-way diverter valve outside the unit (KVDEV)
User-DHW
System recovery side storage tank
3
1
6
5
With this type of system, the main circuit of the heat pump produces DHW (winter season) or DCW (summer season) for the user. The unit can
be set-up as a pump or pump and storage tank as alternative to the traditional solution seen installed in the system. For the production of DHW
by using the heat pump, use a technical water storage tank, which cannot be used directly for human consumption, and combine it to a DHW
producer/intermediate heat exchanger.
Should a 3-way valve system (KVDEV) be envisaged , it can manage production of hot water to the DHW circuit in both the summer and winter
seasons. In fact, the valve enables water flow deviation from the system to the technical water storage tank for the system to produce DHW for
domestic use.
The desuperheater, with which the machine can be fitted, must be connected to the same technical water storage tank for the DHW production
system , and is able to keep the heat storage tank level high. This way, the system allows maximum service continuity to the DHW and system,
regardless of the operation mode (summer or winter).
2.1 Priority management and domestic hot water DHW request (3-way switch-over valve KVDEV and activation of any DS)
How to manage the DHW request:
•
•
by means of the discrete input: the request is assigned by a thermostat (e.g. via a KTRD accessory). When the thermostat closes, the unit
understands that there is a DHW request and, once the conditions have been verified, the procedure is activated to meet the DHW requirements;
by means of a temperature probe in the storage tank: a temperature probe is placed inside the storage tank, which is directly connected to
the unit's board. The required set point can be configured from the panel together with the relative activation differential. In this case, the
probe must be accurately positioned and the maximum distance allowed respected due to the type of probes used.
Type of probe:
description
type of probe
features
β (25/85)
NTC150
NTC
NTC HT150
50kΩ@25°C
3977 (±1%)
NTC
10kΩ@25°C
3435 (±1%)
29
Compact-I MD
Water connections
SYSTEM SUGGESTION OF THE UNIT WITH ACCESSORY RC100/DS AND DHW PRODUCTION MANAGEMENT
Closed circuit system (for heating, for example)
VE VS
M
VSM
VSAM
RC100/DS
FC
ST8
PU
VM
C
KTRD
VSTR
AP1
Open circuit system (for hot water, for example)
VSAM
VE VS
M
VSM
RC100/DS
PU
AP1
SI
AAT
KTRD
ST8
OUT
R
PUR
VE
IS
VS
FA
R
VR
IN
VM
C
PU
C
VSTR
RI
AU
Open circuit system and simultaneous presence of 3-way diverter valve KVDEV (for example for domestic hot water)
VSAM
PU
ST/KTRD
OUT
R
SI
AAT
PUR
VE
C
M
VSM
VR
IN
RI
AU
AP1
IS
VS
FA
R
VE VS
VDEV
PdC
ST2
I
ST1
C
30
PU
IS
AU
I
DHW indication
(tap, shower, sink)
Other utilities
System
Compact-I MD
Water connections
Open circuit system and simultaneous presence of 3-way diverter valve KVDEV and DS desuperheater (for example for domestic hot
water)
VSAM
VE VS
M
VSM
PU
DS
ST/KTRD
ST8
OUT
R
SI
AAT
PUR
VE
R
PU
IS
VS
FA
VR
IN
VM
C
C
VSTR
RI
AU
AP1
M
VSM
VE VS
VDEV
PdC
ST
IS
I
ST1
C
AU
I
DHW indication
(tap, shower, sink)
Other utilities
System
PU
PdC
Reversible heat pump unit
PUR
Recirculation loop circulation pump
RC100
Recovery unit
FC
Fan coil/utility
DS
Desuperheater
UT
For use
M
Manometer
RI
From the water mains
VS
safety valve
ST
Temperature probe
VE
Expansion vessel
YES
Intermediate heat exchanger
VSTR
Recovery heat drain valve
ST8
RC100/DS inlet temperature probe
VMS
Manual air bleed valve
AAT
Technical water storage tank
VSAM
Automatic/manual air bleed valve
C
Water drain/charge cock
AP1
Unit board
ST
Temperature probe
VR
Check Valve
KTRD
Thermostat with display (accessory)
VM
3-way mixing valve
FA
Water filter
PU
Circulation pump
ST1
Main heat exchanger inlet temperature probe
ST2
Main heat exchanger outlet temperature probe
KVDEV 3-way diverter valve
R
Cock
NOTA BENE: for the unit to operate properly, activation of the DC/RC100 recovery pump must be controlled by means of a specific discrete output
provided in the board on the unit.
The minimum temperature of the water input to the recovery unit RC100 is equal to 20°C.
The minimum temperature of the water input to the recovery unit DS is equal to 40°C.
31
Compact-I MD
Water connections
Use of antifreeze solutions
◦◦ The use of ethylene glycol is recommended if you do not wish to drain
the water from the hydraulic system during the winter stoppage, or if
the unit has to supply chilled water at temperatures lower than 5°C
The addition of glycol changes the physical properties of the water
and consequently the performance of the unit. The proper percentage
of glycol to be added to the system can be obtained from the most
demanding functioning conditions from those shown below.
◦◦ Table “H” shows the multipliers which allow the changes in performance of the units to be determined in proportion to the required
percentage of ethylene glycol.
◦◦ The multipliers refer to the following conditions: condenser inlet air
temperature 35°C; chilled water temperature 7°C; temperature differential at evaporator 5°C.
◦◦ For different functioning conditions, the same coefficients can be
used as their variations are negligible.
Table "H"
Design air temperature in °C
% glycol in weight
Freezing temperature °C
fc G
fc Δpw
fc QF
fc P
fc G
fc Δpw
fc QF
fc P
32
2
10
-5
1.025
1.085
0.975
0.993
0
15
-7
1.039
1.128
0.967
0.991
Correction factor of the glycol water flow to the evaporator
Correction factor of the pressure drops in the evaporator
Cooling capacity correction factor
Correction factor for the total absorbed electrical current
-3
20
-10
1.054
1.191
0.963
0.990
-6
25
-13
1.072
1.255
0.956
0.988
-10
30
-16
1.093
1.319
0.948
0.986
-15
35
-20
1.116
1.383
0.944
0.983
-20
40
-25
1.140
1.468
0.937
0.981
Compact-I MD
Water connections
Water circuits TCAITY-THAITY models
Hydraulic circuit TCAITY-THAITY 236÷260 models standard set-up
AP1
ST2
ECH
CF
VSM
PD
RE
M
VSM
FA
RI
RI
OUT
RI
IN
ST1
Hydraulic circuit TCAITY-THAITY 236-260 models P1/P2 set-up
M
ST1
RAS
CF
VSM
VS
PD
RI
IN
RI
OUT
P2
VE
PU
SPD
VSM
RI
P1
FA
ST2
ECH
VSM
VSM
RAE
(optional)
Hydraulic circuit TCAITY-THAITY 236-260 models ASP Tank&Pump set-up
RAS
ST1
CF
MA
VSM
RI
RI
IN
RI
OUT
P2
RAA
PD
FA
SPD
ECH
VS
ST2
VSM
SA
PU
VSM
P1
VSM
RI
VE
Hydraulic circuit TCAITY-THAITY 236-260 models DP set-up
AP1
KRIT
ST2
ECH
CF
RE
VSM
VSM
PD
VS VE
M
RI
PU
RI
PU
VR
VSM
VR
RI
OUT
RI
IN
P1
SPD
P2
RI
FA
ST1
33
Compact-I MD
Water connections
Hydraulic circuit TCAEY-THAEY 245÷265 models ASDP set-up
AP1
ECH
CF
ST2
RE
PD
RAA
VSM
VSM
VSM
VE
VSM
KRIT
RI
PU
VR
RI
PU
VR
VSM
OUT
RI
P1
S
SA
VS
ST1
M
RI
SPD
FA
RI
IN
P2
Hydraulic circuit TCAITY-THAITY 236-260 models P1/P2 V3V set-up
RI
RAS
ST1
CF
M
VSM
VE
VS
PD
ECH
PU
VSM
RI
P2
SPD
VSM
P1
V3V
ST2
VSM
FA
FA
RI
IN
RI
IN
RI
OUT
RI
OUT
VSM
Hydraulic recovery circuit for REC/DS set ups
VSM
ST8
CF
REC/DS
CF
Refrigerant circuit
ECH
Plate evaporator
RE
Evaporator anti-freeze resistance
PD
Water differential pressure switch
VSM
Manual bleed valve
VS
Safety valve
AP1
Electronic controls
ST1
Primary inlet temperature probe
ST2
Primary outlet temperature probe
- work and antifreeze for Standard and Pump set-ups
- antifreeze for Tank & Pump set-ups
ST4
34
Storage tank outlet temperature probe (work)
SPD
Differential pressure sensor only for PI1/PI2 - DPI1/DPI2 ASPI1/ASPI2 - ASDPI1/ASDPI2 set ups
VE
Expansion vessel
RAA
Storage tank resistance (accessory)
FA
Mesh filter (set up by the installer)
SA
Storage tank
KRIT
Integrative electrical resistance (accessory)
M
Manometer
PU
Pump
S
Water drain
RI
Shut-off tap
VR
Check Valve
----
Connections by installer
Compact-I MD
Electrical connections
Electrical connections
Electrical panel internal terminal board
MEU
User external terminal board
L1
Line 1
L2
Line 2
L3
Line 3
N
Neutral
PE
Earth terminal
IG
Manoeuvre isolator switch
KRS485
RS485 serial interface (accessory)
KUSB
RS485/USB converter (accessory)
KFTT10
LONWORKS serial interface (accessory)
KBE
Bacnet Ethernet interface (accessory)
KBM
Bacnet MS/TP Ethernet interface (accessory)
J6
Connector to insert the KRS485, KFTT10, KBM, KBE accessories
KTR
Remote keyboard (accessory)
PC
Personal computer
SCR
Remote control selector (control with clean contact)
SEI
Summer/winter selector (control with potential free contact)
LBG
General lock light (consensus in voltage 230 Vac, maximum load 0,5AAC1)
KRIT
KRIT control (additional electric resistance for heat pump)
(230 Vac, maximum load 0.5 A AC1)
KEAP
Outdoor air probe for Set-point compensation (as an alternative to that already fitted on the machine)
CS
4-20 mA analogue signal for shifting Set-point (incompatible
with the DSP accessory). This must also be handled as a
special feature by our Pre-Sales Department
MIQE
MEU
IG
MIQE
L
L
L
-
+N-
PE
N
KTR
!
ALARM
-
J6
KRS
-
+
KUSB
PC
GND
GND
+
KBE
J6
KBM
CACS
VACS consent (control with potential-free contact)
DSP
Double set-point via digital consensus (incompatible with the
CS/CACS accessory)
VACS
3-way diverter valve for managing the production of domestic hot water (KVDEV) (230 Vac, maximum load 0,5A AC1)
CGA
Auxiliary generator control (consensus in voltage 230 Vac,
maximum load 0,5A AC1)
STACS
Domestic hot water temperature probe (not supplied, set
up by the installer); an alternative to domestic hot water
consensus (CACS)
FDL
Forced download compressors (FDL accessory)(control with
clean contact)
LFC
Compressor functioning light (consensus in voltage 230 Vac,
maximum load 0,5A AC1)
MPR
Motor recovery unit pump control (consensus in voltage 230
Vac, maximum load 0,5A AC1)
---
Connection by installer
____
6-wire telephone cable (maximum distance 50 m, for greater
distances use the KR200 accessory and the shielded cable)
J6
KFTT
J6
SCR
SEI
LBG
KRIT CGA
CS
CACS
STACS
ACS
DSP
FDL
LFC
KEAP
◦◦ The electrical panel is accessible from the front panel of the unit.
◦◦ Connections must be made in compliance with current standards
and with the diagrams provided with the machine.
◦◦ Machine earthing is legally compulsory.
◦◦ Always install a main automatic switch or fuses with adequate
capacity and blackout power in a protected area or near the machine.
ATTENTION!
The following diagrams only show the connections to be made by the installer.
For electrical connections to the unit and the accessories, follow the wiring diagrams which are supplied with them.
Models
MODE
Prg
ON
OFF
MPR
Line Section
PE section
Commands and controls section
236
mm²
16
16
1,5
245-250
mm²
16
16
1,5
260
mm²
25
25
1,5
35
K20136EN ed.4 - 07.16
IR GROUP SARL
19, chemin de la Plaine - 69390 Vourles - France
tél. +33 (0)4 72 31 86 31 - fax +33 (0)4 72 31 86 30
exportsales@rhoss.it
RHOSS Deutschland GmbH
Hölzlestraße 23, D-72336 Balingen, OT Engstlatt - Germany
tel. +49 (0)7433 260270 - fax +49 (0)7433 2602720
info@rhoss.de - www.rhoss.de
RHOSS GULF JLT
Suite No: 3004, Platinum Tower
Jumeirah Lakes Towers, Dubai - UAE
ph. +971 4 44 12 154 - fax +971 4 44 10 581
e-mail: info@rhossgulf.com
Uffici commerciali Italia:
Codroipo (UD)
33033 Via Oltre Ferrovia, 32
tel. +39 0432 911611 - fax +39 0432 911600
Nova Milanese (MB)
20834 Via Venezia, 2 - p. 2
tel. +39 039 6898394 - fax +39 039 6898395
+RhossOfficial
RhossOfficial
RhossOfficial
RhossOfficialChannel
Rhoss
RHOSSS S.P.A. declines all responsabilities for possible mistakes in the catalogue and reserves the right to alter the
features of their products without notice in the interests of continuous improvement.
RHOSS S.P.A.
Via Oltre Ferrovia, 32 - 33033 Codroipo (UD) - Italy
tel. +39 0432 911611 - fax +39 0432 911600
rhoss@rhoss.it - www.rhoss.it - www.rhoss.com