Carrier 30WI Manual

INSTALLATION, OPERATION AND
MAINTENANCE INSTRUCTIONS
Original document
HEAT PUMPS AND LIQUID COOLERS WITH
WATER COOLED CONDENSER
30WI

2

CONTENTS
1 - INTRODUCTION............................................................................................................................................................................4
2 - TRANSPORTING THE UNIT.........................................................................................................................................................4
3 - RECEIPT OF GOODS ...................................................................................................................................................................4
3.1 - Checking the equipmentl...........................................................................................................................................................4
3.2 - Identifying the equipment ..........................................................................................................................................................4
4 - SAFETY INSTRUCTIONS .............................................................................................................................................................5
5 - MACHINE COMPLIANCE .............................................................................................................................................................5
6 - UNIT LOCATION ...........................................................................................................................................................................6
7 - HANDLING AND POSITIONING ...................................................................................................................................................6
8 - INSTALLING THE UNIT ................................................................................................................................................................7
8.1 - Dimensions and oor mounting of the frames...........................................................................................................................7
8.2 - Anti-vibration mounts (not supplied by CARRIER)....................................................................................................................7
9 - OPERATING LIMITS .....................................................................................................................................................................8
9.1 - Operating range ........................................................................................................................................................................8
9.2 - Limits.........................................................................................................................................................................................8
9.3 - Evaporator limits........................................................................................................................................................................8
9.4 - Minimum/maximum water ow rates.........................................................................................................................................8
10 - LOCATION OF THE MAIN COMPONENTS................................................................................................................................9
11 - MAIN COMPONENTS OF THE REFRIGERATING CIRCUIT .....................................................................................................9
12 - HYDRAULIC CONNECTIONS...................................................................................................................................................10
13 - GLYCOL/WATER-MIX ANTIFREEZE PROTECTION ............................................................................................................... 11
14 - ELECTRICAL CONNECTIONS.................................................................................................................................................12
14.1 - Power connection..................................................................................................................................................................12
14.2 - Customer connection for remote control functions................................................................................................................12
15 - CONTROL AND SAFETY DEVICES.........................................................................................................................................14
15.1 - Electronic control and display module...................................................................................................................................14
15.2 - Main functions .......................................................................................................................................................................14
15.3 - Safety device management...................................................................................................................................................14
15.4 - Phase controller option..........................................................................................................................................................15
15.5 - Location of the safety sensors and devices ..........................................................................................................................16
15.6 - Adjusting the control and safety devices ...............................................................................................................................17
16 - COMMISSIONING .....................................................................................................................................................................17
16.1 - Commissioning......................................................................................................................................................................17
16.2 - Essential points that must be checked.................................................................................................................................. 18
17 - TECHNICAL AND ELECTRICAL SPECIFICATIONS ...............................................................................................................19
18 - SERVICING AND MAINTENANCE ...........................................................................................................................................21
18.1 - AQUASNAP 30WI operating readings ..................................................................................................................................21
18.2 - Unit maintenance and servicing ............................................................................................................................................21
19 - ECODESIGN..............................................................................................................................................................................23
20 - ARRÊT DÉFINITIF.....................................................................................................................................................................23
21 - TROUBLESHOOTING OPERATING PROBLEMS ...................................................................................................................24
22 - SCHEMATIC INSTALLATION DIAGRAM .................................................................................................................................25
22.1 - Cooling installation with drycooler.........................................................................................................................................25
22.2 - Cooling mode (Heating and cooling).....................................................................................................................................25
22.3 - Heating mode (Heating and cooling).....................................................................................................................................26
3

1 - INTRODUCTION
AQUASNAP 30WI series water chiller units are designed to meet the air conditioning and heating requirements of residential and
ofce buildings as well as the requirements of industrial processes. AQUASNAP 30WI series units are liquid chillers with water-cooled
condensers which guarantee safe and reliable operation in the operating range for which they have been designed.
All the units are factory tested and checked. They are supplied with a full refrigerant charge.
These units meet standard EN 60-204 and standard EN378-2 as well as the following European directives:
-Machinery 2006/42 EC
-EMC 2014/30/EU
-LVD 2014/35/EU
-RoHS 2011/65/EC:
-PED 2014/68/EU, see table below
AQUASNAP 30WI 700V to 1000V 1100V to 1200V 1400V to 1800V 2100V to 2400V
Categories II III II III
Pressure and temperature:
Test pressure (TP): because of the harmful effects it has on the unit, this test is carried out on a model representative of all 3 x PS
assemblies in compliance with § 5.3.2.2 a and 6.3.3 iii of standard 378-2.
Shipment temperature:
Min. -30°C - Max. +50°C.
Storage temperature:
Min. -30°C - Max. +50°C.
Operating temperature:
Refer to section 9, “Operating limits”, in these instructions.
Technicians who install, start up, operate and service the unit must possess the necessary training and certications, understand the
instructions given in this manual and be familiar with the specic technical characteristics of the installation site.
If they are to work on the unit’s refrigeration circuit, such training and certication must meet the requirements of Regulation (EC)
842/2006.
2 - TRANSPORTING THE UNIT
During shipment, the unit must be securely strapped in place to prevent it moving and to protect it from damage.
If the unit is shipped in a container, the container must be easy to load and unload.
Do not lift the unit using these accessories.
3 - RECEIPT OF GOODS
3.1 - Checking the equipmentl
Check the unit for any damage or missing components upon delivery.
Note any damaged or missing parts on the delivery slip.
IMPORTANT:
You must notify the carrier of any damage and/or missing parts by registered letter within three days of the delivery date.
Furthermore, ensure the unit is not stored in an outdoor location exposed to the elements.
3.2 - Identifying the equipment
Name plate:
Each unit has a manufacturer’s name plate (A) bearing the unit’s identication number (serial number)
and description.
AQUASNAP 30WI A
4

3 - RECEIPT OF GOODS
Make sure this information matches that on the order.
Markings (name plate, punch marks, labels) must remain visible. They must not be altered, removed or modied.
Key:
-Désignation/Description : Unit type.
-An(Year) : Year of manufacture.
-N° série/Serial Nbr : Production number. (to be quoted in all
correspondence)
-Refrigerant : Type of refrigerant.
-Refrigerant kg / TeqCO2: Refrigerant content in kg and in tonnes
of CO2equivalent.
-BP/LP Mini / PSM/MOP : For the low pressure circuit:
-BP/LP. Mini = Minimum operating pressure in bar.
-PSM/MOP = Maximum standard pressure in bar (SP according
to PED 2014/68/EU).
-HP Maxi PSM/MOP : For the high pressure circuit:
-HP. Maxi = Maximum operating pressure in bar.
-PSM/MOP = Maximum standard pressure in bar (SP according to PED 2014/68/EU).
-kW Absorbee/Input kW : Power input in kW.
-Tension/Voltage : Power supply.
-Intensite/Current A : Nominal current in A.
-Pression/Pressure Test : See “Pressure and temperature” section on the previous page.
-Service/Working kg : Operating weight of the unit, in kg.
-Temperatures Min/Max : See “Pressure and temperature” section on the previous page.
-IP : Machine electrical protection rating.
-No CE : Notied Body number.
Please include the identication number in all correspondence.
4 - SAFETY INSTRUCTIONS
To avoid any risk of accident during installation, start-up and adjustments, the following equipment specics must be taken into account:
-Pressurised refrigerating circuits
-Presence of refrigerant
-Presence of electrical voltage
Only experienced and qualied persons may work on such equipment.
The recommendations and instructions in this manual and on each drawing provided with the unit must be followed.
In the case of units with pressure equipment or components, we recommend that you contact your professional organisation for
information on the regulations that apply to operators or owners of pressure equipment or components. The specications of this
pressure equipment or these pressure components are given on the name plates or in the regulatory documentation provided with the
product.
A re protection device is tted as standard on all units.
IMPORTANT: Make sure the main disconnect switch in the unit’s electrical panel is in the OFF position before working on the unit.
5 - MACHINE COMPLIANCE
Refer to the document entitled “Declaration of conformity” supplied with your equipment.
Designation/Description
CARRIER SCS
Rte de Thil
01122 Montluel - France
Tél.: [phone] Made in France
Ref. produit/Item Nbr
An(Year) N. Serie/Serial Nbr No Produit
Refrigerant kW Absorbee/Imput kW Service/Working kg
Temperature Min/MaxTension/VoltageRefrigerant kg / TeqCO2
BP/LP Mini PSM/MOP Intensite/Current AIP
No CEPression/Pressure TestHP Maxi PSM/MOP
Contient des gaz fluorés à effet de serre / Contains fluorinated greenhouse gases
02438040/0001
3025277.423727 30WI 1200V
R410A 46.6 1088
CF NOTICE3 50HZ 400V13.5 + 14.0 / 28.2+29.2
2.5 BAR / 29.5 BAR
42 BAR / 42 BAR
140
PT=3XPS CF NOTICE
21
0060
5

6 - UNIT LOCATION
These units are typically used for refrigeration and are not required to withstand earthquakes. Earthquake resistance has therefore
not been checked.
Before setting up the unit in its intended location, the installer must check the following points:
-These units are designed to be installed and stored inside a machine room that is sheltered from frost and the elements. Failure
to do so will incur the loss of the manufacturer’s warranty.
-The surface area of the ground or structure must be strong enough to bear the unit’s weight.
-The unit must be perfectly level.
-There must be sufcient free space around and above the unit to allow servicing and maintenance (see dimensional drawing
provided with unit).
-The room housing the unit must comply with the requirements of regulation EN 378-3 and other specications applicable at the
installation site.
-The selected location must be above ood level.
-Sound level:
• Our units are designed to operate quietly.
• In the installation design, you must take into account the interior environment for radiated noise and the building type for airborne
and solid-borne noise transmission.
• To ensure vibrations transmitted by solid materials are reduced as much as possible, it is strongly recommended to t anti-
vibration mounts between the unit support and frame (see the section on anti-vibration mounts), as well as exible couplings
on the hydraulic piping.
• Have an analysis carried out by an acoustics engineer.
IMPORTANT: The ambient temperature must not exceed 50°C during the unit’s off cycles.
7 - HANDLING AND POSITIONING
To raise the unit, attach the slings to the designated handling holes.
The data relating to the centre of gravity and the position of the anchorage points are given on the dimensional drawing.
Detailed view of the anchorage point for handling
AQUASNAP 30WI
Holes for handling
Ø 35.2 mm
The unit can be handled with a forklift truck (check the maximum permissible load of the forklift).
In this case, it is important that the necessary precautions be taken to avoid the unit sliding on the forks of the forklift. You must observe
the instructions given on the label afxed to the unit. Failure to observe these instructions may result in the unit tipping over and causing
physical injury.
CAUTION:
-Attach the slings only to the anchorage points intended for this purpose and which are designated on the unit.
-Use slings with a suitable lifting capacity and follow the lifting instructions on the drawings provided with the unit.
-Caution: the centre of gravity is not necessarily at the middle of the unit and the forces applied to the slings are not always identical.
-Raise and set down the unit carefully. Take care not to tilt it by more than 15°, as this could adversely affect its operation.
-To avoid damaging the casing, use textile slings with shackles.
-Use a frame with an adjustable centre of gravity to keep the slings away from the top of the unit.
-Always protect the unit casing (panels, posts, front access door) from damage during handling. Only the base frame is designed
to withstand handling.
-Safety when lifting can only be guaranteed if all these instructions are followed.
Otherwise, there is a risk of damage to the equipment and personal injury.
This diagram is provided as a guide; always
refer to the pictograms on the unit
B
A
C
6

7 - HANDLING AND POSITIONING
AQUASNAP 30WI 700V 800V 900V 1000V 1100V 1200V 1400V 1600V 1800V 2100V 2400V
A996
B1400
C2580 2930 2860
For the empty weight, please refer to section 8.1
8 - INSTALLING THE UNIT
8.1 - Dimensions and oor mounting of the frames
The frame may be afxed to the ground. (Mounts with studs not supplied by CARRIER). The hardness is to be dened according to
the unit’s weight and centre of gravity.
EE
B
A
DFF
C
Ø 20.5 mm
1 m
0.5 m 0.5 m
1 m
Free space to be maintained to allow sufcient room for
maintenance of the unit.
It is important that the units are installed with the necessary
clearances.
AQUASNAP 30WI 700V 800V 900V 1000V 1100V 1200V 1400V 1600V 1800V 2100V 2400V
A2099 2499 3350
B984 984 984
C1271 1671 2366
D916 916 916
E414 414 492
F34 34 34
Weight (empty) Kg 1044 1156 1189 1312 1363 1425 1613 1708 2284 2376 2418
Weight (in operation) Kg 1088 1205 1246 1378 1436 1510 1713 1818 2472 2588 2637
8.2 - Anti-vibration mounts (not supplied by CARRIER)
Anti-vibration mounts must be installed beneath the unit for applications that generate extremely low vibrations. (See position (E) of
the mounting holes in the oor of the frame on the previous diagram).
7

9 - OPERATING LIMITS
9.1 - Operating range
The graph below represents the area of application (under full load) of the units.
AQUASNAP 30WI
Condenser outlet water temperature
Glycol compulsory
Evaporator outlet water temperature
9.2 - Limits
AQUASNAP 30WI
Condenser
ΔT min. °C / ΔT max. °C
Yes – 5 / 10
The customer should take all means necessary to achieve a minimum
water inlet temperature of 25°C on the condenser side.
Evaporator
ΔT min.°C / ΔT max. °C Variable according to water outlet temperature. See evaporator limit curves
9.3 - Evaporator limits
The curves below show the minimum and maximum allowable
temperature differences for chilled water or glycol/water solution
based on the water outlet temperature, for operation under full load.
Example:
For a water outlet temperature of +5°C
• The minimum TΔ is 2.6°C, which gives a water temperature
of 7.6/5°C
• The maximum TΔ is 6°C, which gives a water temperature
of 11/5°C
If the temperature difference calculated is outside the two curves,
contact us.
1
-8 -6 -4 -2 0 24681
01
2
6
5
2
3
4
7
8
9
Brazed-plate
evaporator
Water outlet temperature (°C)
Acceptable water inlet/outlet
TΔ (°C)
Δ T maximum
Δ T minimum
ΔT calculation for performance tables
glycol/water mix
9.4 - Minimum/maximum water ow rates
The ow rates in the exchangers must be maintained between the values given below.
AQUASNAP 30WI 700V 800V 900V 1000V 1100V 1200V 1400V 1600V 1800V 2100V 2400V
Evaporator min. m
3
/h 22 26 29 33 35 38 44 51 61 68 74
max. m
3
/h 70 81 92 105 113 124 137 151 150 150 150
Condenser min. m
3
/h 19 22 25 28 31 33 38 43 52 59 66
max. m
3
/h 64 74 84 95 103 112 129 143 150 150 153
8

10 - LOCATION OF THE MAIN COMPONENTS
Compressor
N° 4
Electrical cabinet
Electrical cabinet
Condenser
Evaporator
Compressor
N° 1
Compressor N° 2
Compressor N° 3
Evaporator
Electrical cabinet
Electrical cabinet
Condenser
Evaporator
Compressor
N° 3
Compressor
N° 2
Compressor N° 1
Evaporator
Compressor N° 6
Compressor
N° 4
Compressor
N° 5
AQUASNAP 30WI 700V to 1600V AQUASNAP 30WI 1800V to 2400V
11 - MAIN COMPONENTS OF THE REFRIGERATING CIRCUIT
Compressor
AQUASNAP 30WI units use hermetically sealed SCROLL
compressors.
Oil
The compressor is lubricated with a polyester oil, (POE) type
160SZ for the AQUASNAP 30WI 700 V to 1200 V chillers. This
oil will be the 3MAF (32 cSt) type for the AQUASNAP 30WI 1400
V to 2400 V chillers.
If necessary, top up the compressors with ICI Emkarate RL 32 CF
oil or Mobil EAL Arctic 22 CC oil if no 3MAF is available for R410A
models.
Refrigerant
AQUASNAP 30WI 700 V to 2400 V chillers operate using R410A.
The Global Warming Potential (GWP) is 2088 GWP for R410A,
in compliance with standard EN378-1.
Exchangers
With the AQUASNAP 30WI, the evaporators and condensers are
double-circuit brazed-plate heat exchangers.
The evaporators are thermally insulated with 10 mm thick
polyurethane foam. As an option, 19 mm insulation is available
(standard equipment for operation with low-temperature glycol/
water mix below 0°C).
The heat-transfer medium must be ltered and internal inspections
must be carried out.
Repairs or modications of any kind to the plate heat exchangers
are prohibited. Only the replacement of the heat exchanger by a
qualied technician using original equipment is authorized. If the
heat exchanger is replaced, this must be noted in the maintenance
booklet.
Electronic expansion valve
AQUASNAP 30WI units are equipped with electronic expansion
valves. The electrical equipment is installed in the electrical
cabinet.
All the expansion valve operating parameters are preset, including
evaporator superheating. Only qualied, experienced personnel
can carry out conguration.
A 24V backup battery is built into the driver. It allows the expansion
valve to be closed in the event of a power failure. It has a service
life of 8 years. After this time, the battery must be replaced.
Important : the valve must not be moved when there is no
refrigerant ow rate. When the system is stopped or evacuated,
the start-up potential-free (dry) contact must remain open.
Dehumidier
Every unit is tted as standard with a dehumidier lter (with a
replaceable cartridge) to keep the refrigerating circuit clean and
free of moisture. The dryer lter consists of aluminium oxide and
a molecular sieve that neutralises any acids in the refrigeration
circuit.
Liquid sight glass
Located on the liquid line just after the lter dryer, the liquid sight
glass is used to monitor the charge in the unit and to check for
moisture in the circuit. Bubbles in the sight glass mean that the
refrigerant load is insufcient or that non-condensable gases are in
the refrigeration circuit. If the sight glass indicator paper changes
colour, there is moisture in the circuit.
Warning: Some of the sight glasses may turn yellow when the
machine is powered off, as their sensitivity is affected by the uid
temperature.
The sight glasses should return to green after the unit has been
operating for a few hours.
If the sight glasses remain yellow, there is excessive moisture in the
circuit. A specialist intervention is required.
9

12 - HYDRAULIC CONNECTIONS
B
CD
E
AQUASNAP 30WI 700V 800V 900V 1000V 1100V 1200V 1400V 1600V 1800V 2100V 2400V
Chilled water inlet/outlet BCDiameter DN 100 PN 16 -
VICTAULIC DN 125 PN 16 - VICTAULIC DN 150 PN 16
VICTAULIC
Cooling water inlet/outlet
DEDiameter DN 100 PN 16 -
VICTAULIC DN 125 PN 16 - VICTAULIC DN 150 PN 16
VICTAULIC
Hydraulic connections must be made in accordance with the
diagram delivered with the unit. This diagram shows the positions
and dimensions of the water inlets and outlets on the exchangers.
Follow the requirements below when making these connections:
-Ensure the inlet and outlet pipes are connected in the
direction shown on the unit.
-In order to meet the operating conditions (ow rates, pressure
loss), a sizing calculation must be performed. The diameter
of the pipes may therefore be different to that specied on
the exchanger.
-The pipes and tubes should not transmit any axial or radial
forces to the exchangers or any vibrations.
-The water must be analysed and, if necessary, treated (we
recommend contacting a qualied water treatment specialist).
The analysis will reveal whether the water is suitable for use with
the various materials it will come into contact with and prevent the
formation of electrolytic couples:
• 99.9% copper tubes brazed with copper and silver
• Threaded bronze couplings or at steel anges, depending
on the unit model
• Plate heat exchangers and AISI 316 - 1.4401 stainless steel
connections brazed with copper and silver
-The water circuit must have as few bends and horizontal
sections at different levels as possible.
-Install shut-off valves near the water inlets and outlets in order
to isolate the exchangers.
-Install manual or automatic air bleed valves at the high points
of the circuit(s).
-The manual or automatic air bleed valves tted on the
machine are not intended to be used to bleed the rest of the
hydraulic circuit.
-A static pressure of 1 bar must be maintained at all times
(machine and pump off or on) on the pump intake.
-Install drain connections at all circuit low point(s).
-Install the accessories that are essential for any hydraulic
circuit (balancing valves, expansion vessel, safety valve,
thermometer pockets, etc.).
-Insulate the pipes and tubes (after performing leak tests) in
order to reduce heat losses and prevent damage from frost.
-Install heating elements on all pipes that could be exposed
to frost.
-The installer must provide the necessary systems for lling
and draining the energy transfer uid.
-To keep the pressure in the coolant circuit below the intended
operating pressure, avoid introducing static or dynamic
pressure into the circuit.
IMPORTANT:
-To prevent any risk of fouling or damage to the plate heat
exchangers (evaporator and condenser), it is essential to t
a strainer to the water inlets as close as possible to the
exchangers and in a place which is easily accessible for
disassembly and cleaning. The maximum mesh size of this
lter should be 800 μm.
-Flexible couplings must be used on the hydraulic pipework
(evaporator and condenser).
The system pipework must be secured to the wall of the building
and must not place any additional load on the unit.
-Using untreated or incorrectly treated water may cause
corrosion or erosion or the formation of scale, algae or sludge
deposits. CARRIER shall not be held liable for damage
resulting from the use of untreated or incorrectly treated water,
or of saline or brackish water.
When the unit is used as a heat pump, the maximum water
return temperature of the installation will be 55°C. Never
series-connect the condenser with a high-temperature water
network (boiler). Doing so will result in damage.
NOTE: The maximum operating pressure on the water side should
be 10 bar (evaporator and condenser). The water ow sensor is
supplied tted to the unit. Stopping the pumps will automatically
cause the unit to stop to avoid any risk of freezing. The pump
or pumps must be slaved to the refrigeration unit (auxiliary
operation switch of the pump to be wired).If the hydraulic circuit
is drained for a period of more than one month, ll the entire
circuit with nitrogen to prevent any risk of corrosion.
IMPORTANT :
If antifreeze is not added to the circuit and the unit is not operated
during periods of freezing weather, drain the evaporator and the
outside pipes.
10

13 - GLYCOL/WATER-MIX ANTIFREEZE PROTECTION
The table and the curves below indicate the minimum percentages of glycol with which the system must be provided depending on
the freezing point.
WARNING : The glycol concentration must protect the uid at least 6°C below the water outlet temperature specied for the evaporator
to allow correct setting of the minimum pressure controller at the evaporator.
Glycol concentration required
Volume concentration in % 0 10 20 30 40
Ethylene glycol Freezing point °C 0 -4 -10 -18 -27
Minimum water outlet °C 5 +3 -1 -7 -14
Propylene glycol Freezing point °C 0 -4 -9 -16 -25
Minimum water outlet °C 5 +4 +1 -4 -9
Important: The values are given for guidance only, according to the standard characteristics of the MEG. These may vary depending
on the MEG manufacturer, therefore it is important to refer to the manufacturer’s data to ensure protection is provided to the required
temperature.
For a glycol concentration greater than 40%, a special pump must be used.
Graph of minimum freezing and operating temperatures
-25
-30
-15
-20
-5
-10
0
20 4010 30
-45
-50
-35
-40
0
B
C
D
E
Volume concentration in %
Temperature (°C)
Minimum operating temperature
BMonopropylene glycol
CMonoethylene glycol
Freezing temperature
DMonopropylene glycol
EMonoethylene glycol
11

14 - ELECTRICAL CONNECTIONS
14.1 - Power connection
The units are designed in accordance with the requirements of
European standard EN 60204-1.
They comply with the requirements of the machinery and
EMC directives.
All wiring must be connected in accordance with the codes and
regulations that apply to the installation site (e.g. NFC 15100 in
France).
In all cases:
- Refer to the wiring diagram attached to the unit.
-Follow the electrical supply specications indicated on the
data plate.
The voltage must remain within the range indicated:
-Power circuit:
400 V (+10% / -10 %) - 3 ph - 50 Hz + Earth
* 230 V (+10 % / -10 %) - 3 ph - 50 Hz + Earth
-Power circuit:
1 ~ 50 Hz 230 V (Transformer tted as standard on the
machine)
* Installation according to French regulations
-Phase unbalance must not exceed 2% and 10% for voltage
and current, respectively.
If any of the above requirements are not met, contact your power
supplier immediately and make sure the unit isnot turned on until
the necessary corrective actions have been taken. Failure to do
so will automatically void the manufacturer’s warranty.
Wiring is to be sized by the installer to suit the characteristics of
the installation site and comply with applicable regulations.
Once the size of the wires has been selected, the installer must
determine any changes needed on site to facilitate connection.
-Wiring must be selected based on:
• The maximum rated current (refer to the “Electrical
specications”).
• The distance between the unit and its power source.
• The protection to be tted at the power source.
• The neutral mode.
• The electrical connections (refer to the wiring diagram
provided with the unit).
-The electrical connections are to be made as follows:
• Connection to the power circuit.
• Connect the protective conductor to the earth terminal.
• Connect the general fault display dry contact and the
automatic operation control dry contact (where applicable).
• Interlock the compressors with the accelerator pump.
-The external control must be connected using a potential-free
(dry) contact.
-The disconnect switch has a breaking capacity of:
• 40.5 kA for 700 V to 1200 V versions,
• 61.5 kA for 1400 V to 2100 V versions,
• 70 kA for 2400 V version,
The unit is supplied by the upper right section of the electrical
cabinet with an opening for routing the supply cables.
Routing for general
power cables
Wiring bundle routing
Customer connection
(Remote control)
14.2 - Customer connection for remote control functions.
Certain operating states can be wired directly to terminal X1 provided for this purpose:
add 2 board
CPU board
Terminal X1
12

14 - ELECTRICAL CONNECTIONS
General fault alarm:
1 2 11 12 13 14 15 16
230 V
Alarm
Connector
J3 (CPU)
Remote control: Connect the unit’s general fault reporting or alarm
to the terminals on the unit’s terminal strip (see wiring diagram).
• Output specication: 2 A sous 250 V.
Automatic operation control:
1 2 43 6 105 11
CA C1
Connector
J6 (CPU)
Remove shunt “CA” from between the terminals on the unit terminal
strip (see wiring diagram) and connect a “C1” contact to these
terminals (high-quality polarity-free contact).
• Contact open → unit off
• Contact closed → unit authorised to run
• Input specication: 24 V - 15 mA.
Display of the operating state of pump No. 1
1 2 43 6 105 11
K
Connector
J5 (CPU)
• Contact open → Pump off
• Contact closed → Pump in operation
• Input specication: 24 V - 15 mA.
Other connections can be made to the CPU board
Water pump control
Shared
Pump relay No. 1
Pump relay No. 2
1 2 14 15 16
230 V - 8
A
230 V - 8
A
Connector
J3 (CPU)
Connect the supply to the pump relays between the terminals of
the connector on the main board.
• Output specication: 2 A under 250 V
Setpoint 1/setpoint 2 selector control
1 2 43 6 105 11
C2
Connector
J6 (CPU)
Connect a “C2 ” contact to the connector on the CPU board (high-
quality polarity-free contact)
• Contact open → setpoint 1
• Contact closed → setpoint 2
• Input specication: 24 V - 15 mA
Display for operation at full power (if P111 = max P)
2 9 10 11 15 16
230 V
1
Connector
J3 (CPU)
Connect the signalling of the unit operating at max. output to
terminals 1 and 2 of the connector on the CPU board.
• Output specication: 2 A under 250 V.
“Load shedding” function control
1 98 107 11
J6 (CPU)
N° 1 N° 2
1 987
J2 (Carte circuit 2) ADD 2
N° 3 N° 4
Connector
J6 (CPU)
Connector J2
(Circuit board 2) ADD 2
stage
stage
Connect 1 to 4 contacts to the terminals of the connector of the
CPU board according to the number of the compressors to be
shed. 1 contact per compressor (contact free of any polarity and
of good quality).
• Contact open → normal operation,
• Contact closed → compressor load shedding.
• Input specication: 24 V - 15 mA.
NOTE:
• Connection to be made on site by the customer,
• Precautions for connection. See manual for the regulator
and the electrical diagram of the unit.
Communication
• In the room, a control and display console is used to run an
instant check on the unit; it enables the user to communicate
with the microprocessor, to congure the unit and to adjust
the setpoints.
• Electronic remote control (option):
Installed in the machine room, this will be connected to the
unit by a pair of telephone-type wires (max. distance 1000
m). For a description of functions and connection, see
CHILLER/HEATPUMP CONTROL manual.
• Relay board(s) (option):
This board is installed in a cabinet in the machine room and
can remotely report on all the unit’s operating states and
faults by providing contacts which are potential-free when
closed. The board will be connected to the unit by a pair of
telephone-type wires (max. distance 1000 m).
• Communication with centralised management system and
see the option in the CHILLER/HEATPUMP CONTROL
manual.
For a description of boards and connection, see the CHILLER/
HEATPUMP CONTROL manual.
13

15 - CONTROL AND SAFETY DEVICES
15.1 - Electronic control and display module
All units in the range are tted with a CHILLER/HEATPUMP CONTROL microprocessor-controlled electronic control and display
module.
The electronic module controls the operation of the compressors. Thus, depending on the difference between the cold water (or hot
water) return temperature and the setpoint temperature, the electronic module will activate or deactivate the compressors in series.
In a standard conguration of the unit, the cold water or hot water control sensor is placed on the evaporator water return (chilled water
production use) or condenser (heat pump use).
15.2 - Main functions
■Water temperature control:
-Evaporator chilled water.
-Condenser hot water.
■3 possible types of control:
- Water return difference.
-Water outlet PID temperature.
-Control according to the outdoor temperature.
In the standard conguration, the units use the chilled water return control. For PID water outlet temperature control, refer to the
CHILLER/HEATPUMP CONTROL control manual.
■Operating settings monitoring.
■Fault diagnosis.
■Fault storage in the event of a power failure.
■Management and automatic equalisation of compressor operating time (multi-compressors).
■Remote control (Start/stop, temperature setpoint adjustment, operating states, general fault) (OPTIONAL).
■Remote control reporting of operating states and faults using an interface module (OPTIONAL).
For a detailed description of all these functions refer to the CHILLER/HEATPUMP CONTROL user manual
15.3 - Safety device management
All of the unit’s safety devices are managed by the electronic circuit board in the regulator. If a safety device is triggered and stops the
unit, trace the fault, reset the safety device if necessary, and then clear the fault with the “RESET” button on the CHILLER/ HEATPUMP
CONTROL console.
The unit will restart when the minimum time required by the short-cycle protection elapses. To ascertain the setting values of the
different safety devices and the fault clearance procedures, refer to the CHILLER/HEATPUMP CONTROL regulator instructions.
Low-pressure control (LP)
Each unit includes one low pressure sensor per refrigerating circuit as standard. This sensor enables the user to display the LP value
and enables the electronic module to provide a safety function by ensuring that the LP value does not fall below the threshold parameter
in the regulator.
High-pressure control (HP)
■High-pressure switch.
Each refrigerating circuit is equipped with an HP pressure switch.
The HP safety pressure switch is the main safety device for the unit during operation. Thus, when the HP value exceeds the preset
value of the pressure switch, power to the compressor(s) in the refrigerating circuit concerned is cut off and the fault is indicated
by an LED on the regulator console.
The HP pressure switches are reset manually, thus any fault will be cleared by resetting the pressure switch and by pressing the
RESET button on the console.
Note : The units have two pressure switches per circuit (connected electrically in series).
■High-pressure sensor
Each unit includes one high-pressure sensor per refrigerating circuit as a standard item. This sensor enables the user to display
the HP value and enables the electronic module to perform its safety function.
Evaporator frost protection
The evaporator is protected against freezing by two sensors:
■Evaporator chilled water outlet sensor
Each evaporator is tted with an antifreeze protection sensor (located on the chilled water outlet) which monitors the temperature of the
uid to be cooled. If this temperature falls below the set value in the regulator, power to the compressor(s) in the refrigerating circuit
concerned is cut off and the fault is indicated by an LED on the regulator console. This probe acts as a safety device and must therefore
never be moved by the customer.
■Freon sensor on evaporator inlet or on the circuit 1 or 2 pressure sensor (LP) (1400 V to 2400 V models)
This sensor monitors the temperature of the refrigerant at the evaporator inlet. If this temperature falls below the set value in the
regulator, power to the compressor(s) in the refrigerating circuit concerned is cut off and the fault is indicated by an LED on the
regulator console.
14

15 - CONTROL AND SAFETY DEVICES
Evaporator water circulation controller
Every unit is tted with a water circulation control device as standard. Thus, if the water ow is insufcient, the power supply to the
compressor(s) is cut and an LED indicates the fault on the regulator console.
Internal compressor protection
Every model in the range is protected against overheating of the electric motor and high discharge temperatures.
The units are equipped with compressors with internal protection against missing phases and phase reversal.
On all models, an optional phase controller may also be added if the customer wishes.
Discharge sensor
Each unit includes one discharge sensor per refrigerating circuit as standard. This sensor located on the discharge piping makes it
possible for the user to view the discharge temperature value and enables the electronic module to provide a safety function.
If the discharge temperature exceeds the maximum temperature threshold set in the regulator, the power supply to the compressor(s)
for the refrigerating circuit concerned is cut and the fault is indicated by an LED on the regulator console.
Overpressure protection
Each refrigerating circuit in each unit is protected against the risk of overpressure resulting from re.
■Fire valves
-The re valve protect the HP and LP circuits against overpressure caused by an increase in the outdoor temperature, when the
unit is off. (E.g.: external re)
-This re valve is not considered a safety device as dened in section 2.11 of appendix 1 of the pressure equipment directive.
■Allowable pressure (PS) LP side
-The LP value (given on the name plate) corresponds to the situation with the unit switched off. This value is given according to
the pressure/temperature ratio with an outdoor temperature of 50°C, depending on the unit. These temperatures correspond to
the least favourable situation the unit could be subjected to, excluding an external re.
The LP side pipes are sized for the maximum allowable pressure.
The LP value is linked to the relevant unit and cannot be exceeded.
15.4 - Phase controller option
The phase controller option performs the following functions:
-Control del sentido de giro de las fases;
-Detección de la ausencia total de una o varias fases;
-Control de sobretensión o subtensión.
15

15 - CONTROL AND SAFETY DEVICES
15.5 - Location of the safety sensors and devices
AQUASNAP 30WI 700V to 1600V
Outlet
Inlet
Differential
pressure
switch
CIRCUIT 1 CIRCUIT 2
Schrader
valve
FIRE
SAFETY
DEVICES
HOT
WATER
Expansion
valve
Expansion
valve
OPTION
Suction valves
Schrader
valve
COILED IN THE
CABINET
Dryer with
rechargeable
cartridges
Dryer with
rechargeable
cartridges
Hygroscopic
sight glass
Hygroscopic
sight glass
Electric
valves
Discharge
valves
Pressure-
reducing
regulator
Pressure-
reducing
regulator
CHILLED
WATER
Inlet
Outlet
AQUASNAP 30WI 1800V to 2400V
CHILLED
WATER
Schrader
valve
OPTION
Suction valves
Schrader
valve
COILED IN THE
CABINET
CIRCUIT 1 CIRCUIT 2
Pressure-
reducing
regulator
Pressure-
reducing
regulator
Differential
pressure
switch
Inlet
Outlet
Outlet
Inlet
HOT
WATER
Expansion
valve
Expansion
valve
Dryer with
rechargeable
cartridges
Dryer with
rechargeable
cartridges
Hygroscopic
sight glass
Hygroscopic
sight glass
Discharge
valves
FIRE
SAFETY
DEVICES
SC: Condenser water outlet
EC: Condenser water inlet
CIRCUIT 1
B1: Outdoor temperature sensor
B2: Chilled water inlet sensor
B3: Exchanger chilled water outlet
sensor 1
B4: Exchanger ambient temperature/
hot water sensor
B7A: Circuit 1 stage 1 discharge sensor
B7B: Circuit 1 stage 2 discharge sensor
B8: Antifreeze protection/exchanger
refrigerant sensor 1
B9: Circuit 1 suction sensor
B25: Circuit 1 liquid/refrigerant sensor
SE: Evaporator outlet
EE: Evaporator inlet
CIRCUIT 2
B10: Exchanger chilled water outlet
sensor 2
B11: Chilled water outlet, header sensor
B12A: Circuit 2 stage 1 discharge sensor
B12B: Circuit 2 stage 2 discharge sensor
B14: Antifreeze protection/exchanger
refrigerant sensor 2
B15: Circuit 2 suction sensor
B26: Circuit 2 liquid/refrigerant sensor
16

15 - CONTROL AND SAFETY DEVICES
15.6 - Adjusting the control and safety devices
Units Function Electrical symbol Settings
Outdoor sensor Adjust the setpoint according to the outdoor
temperature B1
Controller for CHILLER/HEATPUMP
CONTROL
Chilled water inlet sensor Control of the unit on the water return B2
Chilled water outlet manifold
sensor Unit control if controller on water outlet B11
Hot water inlet sensor Unit control in hot operation B4
Discharge sensor circuit 1,
circuit 2 Compressor protection Circ. 1 : B7A, B7B
Circ. 2 : B12A, B12B
Circuit 1 and circuit 2 evaporator
inlet freon sensor Evaporator frost protection Circ. 1 : B8
Circ. 2 : B14
High-pressure switch circuit 1
and circuit 2 Compressor safety devices Circ. 1 : HP1, HP3
Circ. 2 : HP2, HP4
HP fault threshold:
R410A: 41.5 bar ± 0.7
Manual reset + Reset button
Circuit 1 and circuit 2
lowpressure sensor Low pressure value control Fluid leak detection
Circ. 1 : BBP1
Circ. 2 : BBP2 Controller for CHILLER/HEATPUMP
CONTROL
Circuit 1 and circuit 2 high-
pressure sensor
High pressure value control
Controlling the unit by high pressure
Condensing pressure control
Circ. 1 : BHP1
Circ. 2 : BHP2
16 - COMMISSIONING
Checks prior to system start-up: Always read this manual in
full before attempting to commission the system.
Comply with applicable national regulations during testing and
installation.
Before commissioning the system, carry out the following checks:
-Compare the complete system against the refrigeration and,
wiring diagrams
-Make sure that all components are as specied on the
drawings
-Make sure that no documents and safety devices required
by applicable European standards are missing
-Make sure that there is sufcient clearance around the system
for maintenance and emergency purposes
-Check the assembled couplings
-Check the quality of the welds and seals and check for any
refrigerant leaks
-Make sure that all mechanical guards are in place and
functional
-Look into the problems of specic noise generated by the
installation.
-After opening the water circuit valves, make sure that water
is owing in the cooler while the pump is running.
-The air in the hydraulic circuit must be bled before system
start-up.
For this operation, the pump(s) must have been started up.
To enable operation without triggering the compressor(s), all our
machines are delivered with the parameter “compressor on
authorisation” set to “NO”.
The operation can therefore be carried out with no risk of starting
up the compressors by setting the machine control to the “ON”
position.
Once the hydraulic circuit has been bled, the machine is turned
on by switching the “compressor on authorisation” setting to “YES”
which authorises start-up.
List of parameters concerned:
-P230 Stage 1, circuit 1 “on” authorisation
-P231 Stage 2, circuit 1 “on” authorisation
-P232 Stage 1, circuit 2 “on” authorisation
-P233 Stage 2, circuit 2 “on” authorisation
-P235 Electric stage 1 “on” authorisation (Unit with Electric
heater module)
-P236 Electric stage 2 ‘on’ authorisation (Unit with Electric
heater module)
-P237 Electric stage 3 ‘on’ authorisation (Unit with Electric
heater module)
-P238 Electric stage 4 “on” authorisation (Unit with Electric
heater module)
-Check the operation of the circulation controller
-Check for loose clamps on all pipes
-Check for loose electrical connections
-Leave the compressor’s crankcase heaters on for 6 hours
before switching on the unit.
-After 6 hours, touch the crankcases to ensure that all heaters
have been working correctly (they should be lukewarm)
-Make sure current is supplied to the general connection and
that the voltage supplied remains within the acceptable limits
(+10% to -10% compared to the rated voltage)
FLEXIBLE COUPLINGS MUST BE USED ON THE HYDRAULIC
(EVAPORATOR AND CONDENSER).
16.1 - Commissioning
The system must be started and commissioned by a qualied
technician.
-The system must be charged with refrigerant and water
owing in the exchangers when it is turned on and tested.
-Power up the main board
-Check that the machine is configured for local control
(regulator selection)
-Select the operating mode using the button (chilled or hot
water operation)
-Enter the setpoints for:
• Chilled water
• Hot water
-Start the unit by pressing the on/off button
17

16 - COMMISSIONING
-The internal safety devices are now activated. If one of these
safety devices is triggered, trace the fault, reset the safety
device if necessary and press the RESET button on the
console to clear the fault.
-The unit can only be started after 2 minutes (time required
to scan and enable all the safety devices). The control stages
should operate in cascade mode based on the demand.
Use either of the following to turn off the unit in nonemergency
situations:
-The On/Off button on the console
-A dry contact on the automatic operation control.
Do not use the master switch as the electrical cabinet must
remain powered on (antifreeze protection, crankcase heater).
NOTE:
AQUASNAP 30WI machines operate using R410A. It is essential
that technicians use equipment which is compatible with R410A.
16.2 - Essential points that must be checked
Compressors:
Ensure that each compressor is rotating in the correct direction,
checking that the discharge temperature rises quickly, the HP
increases and the LP drops. If it is rotating in the wrong direction,
the electric power supply is incorrectly wired (reversed phases).
To ensure rotation in the correct direction, swap the two power
supply phases.
-Check the compressor discharge temperature using a contact
sensor.
-Check the input current; it should be normal.
-Check all safety devices to make sure they operate correctly.
Hydraulics:
As the exact total drop in system pressure is not known at
commissioning, adjust the ow of water with the control valve until
the desired nominal rate is obtained. By causing the pressure in
the water system to drop, this control valve aligns the system
pressure/ow curve with that of the pump so that the nominal ow
rate corresponding to the desired operating point is obtained.
The pressure drop in the plate exchanger (read using the pressure
gauge placed on the exchanger inlet and outlet) is the reference to
be used to check and adjust the nominal ow rate of the system.
Follow the procedure described below:
-Open the control valve completely.
-Let the pump run for 2 hours to ush out any solid particles
in the circuit.
-Read the pressure drop in the plate exchanger when the
pump is switched on and then 2 hours afterwards:
• If the pressure drop has decreased, this means that the
screen lter is clogged. It must be removed and cleaned
• Repeat until the lter is completely clean.
-Once the circuit has been ushed of all contaminants, read the
pressure drop in the plate exchanger and compare it to the
theoretical pressure drop selected.
If the reading is higher than the theoretical value, the ow rate is
too high. In other words, the pump is delivering too much ow for
the system load drop. Close the control valve one complete turn
and read the load drop. Continue by gradually closing the valve
until the nominal ow rate for the desired operating point is
obtained.
However, if the system pressure drops far below the available
static pressure delivered by the pump, the resulting water ow
rate will be low and the difference in temperature between the
exchanger inlet and outlet will be higher. This is why pressure
drops must be minimised.
Refrigerant charge:
Each unit is shipped with an exact charge of refrigerant. To make
sure that the unit is lled with the correct charge of refrigerant, perform
the following checks circuit by circuit with the system running at full
capacity:
-Check the overheating value which must be between 6 and
9°C depending on the type of unit.
-Check the actual subcooling value at the condenser outlet.
It must be between 5 and 8°C, depending on the type of unit.
-Check there are no bubbles in the liquid sight glass.
If the charge is too low, large bubbles will appear in the liquid sight
glass, the suction pressure will drop and overheating on the compressor
inlets will be high. Locate the leak, completely drain the refrigerant
charge using a recovery machine, and ll the unit with a new charge.
Repair the leak, pressure test the unit (do not exceed the maximum
service pressure on the low-pressure end) then rell the unit. The
refrigerant must be liquid and charged via the liquid charging valve.
The amounts of refrigerant indicated on the data plate must be added
to each circuit in the unit. Repeat these steps if the subcooling
temperature is below the specied values.
NOTE:
An excessively low suction pressure or an excessively high
condensation pressure may sometimes be read when
commissioning the unit. These problems may have numerous
causes. Refer to the “Troubleshooting operating problems” section
for more information.
→ Operation with negative temperatures
To guarantee operation of the unit, it is essential to:
-Adjust the regulator’s safety parameters for the operating
temperature.
-Optimise the electronic expansion valve settings.
-Adjust the refrigerant charge, checking that the subcooling
values are between 5 and 8°C.
18

17 - TECHNICAL AND ELECTRICAL SPECIFICATIONS
AQUASNAP 30WI 700V 800V 900V 1000V 1100V 1200V
Compressor
Type Hermetic SCROLL (2900 rpm)
Quantity 4
Start-up mode Direct in line in series
Refrigerant oil type POE 160SZ
Oil capacity (circ.1 + circ. 2) I. 6,7 + 6,7 6,7 + 7,2 7,2 + 7,2
Number of refrigerating circuits 2
Refrigerant R410A
CO2 equivalent tonne tCO2Eq 57,42 63,68 68,49 71,41 82,27 88,95
Refrigerant charge (circ. 1 + circ. 2) Kg 13,5 + 14 15,5 + 15 16,4 + 16,4 17 + 17,2 19,7 + 19,7 21,3 + 21,3
Power control
Stage
number 646464
%100-78-71-
50-28-21-0
100-75-50-
25-0
100-78-71-
50-28-21-0
100-75-
50-25-0
100-78-71-
50-28-21-0
100-75-
50-25-0
Evaporator
Number and type 1 brazed plate heat exchanger
Water content I 20 23 26 29 32 37
Min / max water outlet temperature °C -12 °C / +18 °C
Min/max water ow m3/h 22/70 26/81 29/82 33/105 35/113 38/124
Water connections Diameter VICTAULIC DN 100 VICTAULIC DN 125
Minimum system diameter Diameter DN 100 DN 125
Max service pressure bar 10 bar water side
Water-cooled condenser
Number and type 1 brazed plate heat exchanger
Water content l 23 26 29 32 37 40
Min./max. water outlet temperature °C -0 / +18°C
Min./max. water ow m3/h 19/64 22/74 25/84 28/95 31/103 33/112
Water connections Diameter VICTAULIC DN 100 VICTAULIC DN 125
Max service pressure bar 10 bar water side
Dimensions and weight
Storage temperature °C Voir chapitre : 1 Introduction
Min. water volume l. 636 880 844 1146 1043 1346
Height in operation (1) mm 1869
Length mm 2099
Depth mm 996
Weight (empty)/weight (in operation) kg See page 5
Power supply
Compressor voltage ph/Hz/V 3 / 50 Hz / 400 V (+10 % / -10 %)
Index of Protection Machine IP 21/Electrics box IP23
Max. rated current A 140 160 182 205 218 232
Starting current A 316 334 391 414 480 494
Starting current, Soft Start option (2) A 230 248 287 310 352 366
Breaking capacity kA 40,5
Max. wire cross-section mm² 240
Control circuit voltage ph/Hz/V 1/50 Hz/230 V (+10%/-10%) - Transformer tted
Max. rated current A 0,8
Transformer capacity A 160
(1 ) Height excluding handling mounts
(2) Starting current of largest compressor + maximum current of other compressors under full load
Cable selection nominal current = Sum of maximum nominal currents in the above tables.
19

17 - TECHNICAL AND ELECTRICAL SPECIFICATIONS
AQUASNAP 30WI 1400V 1600V 1800V 2100V 2400V
Compressor
Type Hermetic SCROLL (2900 rpm)
Quantity 4 6
Start-up mode Direct in line in series
Refrigerant oil type POE 3MAF
Oil capacity (circ.1 + circ. 2) l. 6,3 + 6,3 6,3 + 6,3 + 6,3
Number of refrigerating circuits 2
Refrigerant R410A
CO2 equivalent tonne tCO2Eq 88,74 93,96 129,46 139,90 141,98
Refrigerant charge (circ. 1 + circ. 2) Kg 21,5 + 21 23 + 22 31 + 31 33 + 34 34 + 34
Power control
Stage
number 64686
%100-78-71-
50-28-21-0
700-75-50-
25-0
100-83-66-50-
33-16-0
100-84-66-48-
36-30-18-15-0
100-83-66-50-
33-16-0
Evaporator
Number and type 1 brazed plate heat exchanger
Water content l 50 57 64 77 77
Min / max water outlet temperature °C -12 °C / +18 °C
Min/max water ow m3/h 44/137 51/151 61/150 68/150 74/150
Water connections Diameter VICTAULIC DN 100 VICTAULIC DN 150
Minimum system diameter Diameter DN 100 DN 150
Max service pressure bar 10 bar water side
Water-cooled condenser
Number and type 1 brazed plate heat exchanger
Water content l 55 61 73 77 77
Min./max. water outlet temperature °C -0 / +18°C
Min./max. water ow m3/h 38/129 43/143 52/150 59/150 66/153
Water connections Diameter VICTAULIC DN 100 VICTAULIC DN 150
Max service pressure bar 10 bar water side
Dimensions and weight
Storage temperature °C Voir chapitre : 1 Introduction
Min. water volume l. 1286 1735 1262 1336 1595
Height in operation (1) mm 1887 1970
Length mm 2499 3350
Depth mm 996
Weight (empty)/weight (in operation) kg See page 5
Power supply
Compressor voltage ph/Hz/V 3 / 50 Hz / 400 V (+10 % / -10 %)
Index of Protection Machine IP 21/Electrics box IP23
Max. rated current A 266 295 356 399 443
Starting current A 586 615 607 720 763
Starting current, Soft Start option (2) A 429 453 483 562 605
Breaking capacity kA 61,5 70
Max. wire cross-section mm² 240
Control circuit voltage ph/Hz/V 1/50 Hz/230 V (+10%/-10%) - Transformer tted
Max. rated current A 1,3
Transformer capacity A 250
(1 ) Height excluding handling mounts
(2 ) Starting current of largest compressor + maximum current of other compressors under full load
Cable selection nominal current = Sum of maximum nominal currents in the above tables.
20