Carrier 50CJ Manual

INSTALLATION, OPERATION AND
MAINTENANCE INSTRUCTIONS
Translation of the original document
Control Unit
50CJ
Rated cooling capacity: 5 - 55 kW (W) - 50 Hz
Rated cooling capacity: 5 - 47 kW (X) - 50 Hz

CONTENTS
1 - INDOOR UNIT(S) (50CJ)...............................................................................................................................................................4
2 - RECEIPT........................................................................................................................................................................................5
3 - HANDLING ....................................................................................................................................................................................6
3.1 - Weights and dimensions: ..........................................................................................................................................................6
4 - LOCATION OF COMPONENTS ....................................................................................................................................................7
4.1 - W 5/8/12/16/27: ........................................................................................................................................................................7
4.2 - X 5/8/10/12/15/19/24/31/36/38/48: ...........................................................................................................................................7
4.3 - Assembly/air ow direction........................................................................................................................................................8
5 - INSTALLATION: UNIT/FRAME/PLENUM..................................................................................................................................... 8
5.1 - Setting the unit in place.............................................................................................................................................................8
5.2 - Units equipped with a plenum: ..................................................................................................................................................8
6 - CONNECTIONS.............................................................................................................................................................................9
6.1 - Air connections..........................................................................................................................................................................9
6.2 - Hydraulic connections ...............................................................................................................................................................9
6.3 - Refrigerant connections, Unit X.................................................................................................................................................9
6.4 - Electrical connection ...............................................................................................................................................................12
7 - TECHNICAL CHARACTERISTICS .............................................................................................................................................13
7.1 - Filters.......................................................................................................................................................................................13
7.2 - Cooling coil:.............................................................................................................................................................................13
7.3 - Refrigerant circuit checks:.......................................................................................................................................................14
7.4 - Heating coil and valve (option)................................................................................................................................................15
7.5 - Air ow rate setting (indoor unit)..............................................................................................................................................16
7.6 - Condensate drain pump (option).............................................................................................................................................16
7.7 - Humidier (option)...................................................................................................................................................................17
7.8 - Electric heater (option) ............................................................................................................................................................18
7.9 - Control.....................................................................................................................................................................................18
8 - SYSTEM START-UP....................................................................................................................................................................19
9 - MAINTENANCE...........................................................................................................................................................................20
9.1 - Filters.......................................................................................................................................................................................21
9.2 - Cooling coil..............................................................................................................................................................................21
9.3 - Electric heater .........................................................................................................................................................................21
9.4 - Humidier ................................................................................................................................................................................22
9.5 - Fan ..........................................................................................................................................................................................23
9.6 - Electrics box............................................................................................................................................................................23
10 - SERVICE INTERVAL SUMMARY TABLE.................................................................................................................................24
11 - OPERATING READINGS ..........................................................................................................................................................25
12 - REGULATIONS .........................................................................................................................................................................26
13 - OUTDOOR UNIT(S) (CL2) ASSOCIATED WITH 50CJ X .........................................................................................................26
14 - RECEIVING THE EQUIPMENT.................................................................................................................................................26
15 - EQUIPMENT IDENTIFICATION ................................................................................................................................................26
16 - WARRANTY...............................................................................................................................................................................27
17 - SAFETY RECOMMENDATIONS...............................................................................................................................................27
18 - UNIT LOCATION .......................................................................................................................................................................27
19 - WEIGHT AND HANDLING ........................................................................................................................................................28
20 - OPERATING LIMITS .................................................................................................................................................................28
21 - TECHNICAL CHARACTERISTICS ...........................................................................................................................................28
22 - ELECTRICAL SPECIFICATIONS..............................................................................................................................................29
2

EN
The images in these documents are solely for illustration and are not contractual. The manufacturer reserves the right to change the design at any time without notice.
CONTENTS
23 - DIMENSIONS.............................................................................................................................................................................30
23.1 - Models CL2 28 and 35 ..........................................................................................................................................................30
23.2 - Models CL2 50, 65 and 75 ....................................................................................................................................................31
24 - INSTALLATION .........................................................................................................................................................................32
25 - ELECTRICAL CONNECTIONS.................................................................................................................................................33
26 - SETTING THE CONTROL AND SAFETY DEVICES ................................................................................................................33
27 - REFRIGERANT CONNECTIONS..............................................................................................................................................34
28 - COMMISSIONING .....................................................................................................................................................................36
29 - CARE AND MAINTENANCE.....................................................................................................................................................37
30 - TROUBLESHOOTING...............................................................................................................................................................38
3

1 - INDOOR UNIT(S) (50CJ)
Appropriate PPE (Personal Protective Equipment) must be worn whenever servicing the units.
Warning
The unit must be installed and maintained by a qualied, experienced technician. Follow the operating precautions to the
letter when working on the unit. Labels have been placed on the unit to remind you of the safety instructions. As a general
rule, follow all applicable safety regulations and standards.
Introduction to the range:
The 50CJ is a range of precision close control units that is specically adapted to meet the air handling needs of computer and
telecommunications rooms, and rooms for special purposes (electronic, sensitive storage, medical, clean rooms).
The 50CJ range operates with chilled water or direct expansion
The description of the unit is indicated using the following format:
B
Range
D
Cooling capacity
C
Unit type W: chilled water
Unit type X: direct expansion
E
Type of assembly
- UNDER 1,
- OVER 3, 4 or 5
EXPAIR CW 16 1
B C D E
4

EN
2 - RECEIPT
Each unit has a name plate bearing an identication number. This number must be quoted in all correspondence.
In accordance with Article 133-3 of the French Code of Commerce, the recipient is entirely responsible for checking the condition of
the goods received.
In the event of missing items, the customer must provide the exact number of parcels delivered.
Any damaged or missing items must be specied on the delivery note in the presence of the driver before signing the delivery note.
These comments must be conrmed to the carrier by registered letter within three business days.
The comments "conditional" and "pending unwrapping" shall have no value.
The client must unwrap the goods in the presence of the driver.
Claims must be made at the time of delivery and be described in detail.
■Equipment storage
The cabinet must be stored in a dry, sealed area, away from moisture and frost. The temperature in this area must not exceed 50°C.
■Equipment warranty
See the general terms and conditions of sale.
■Identifying the equipment
Each unit has a name plate located at the bottom of the electrics box that bears an identication number. This number must be quoted
in all correspondence.
827 641
3
5
B
Product reference
C
Product description
D
Year of manufacture
E
Serial no. (to be quoted in all correspondence)
F
Type of uid used in the exchanger and operating pressure.
G
Cooling capacity + water temperature used
H
Heating capacity + water temperature used (with heating coil option)
+ usage type (2 stages or TRIAC, with heating coil option)
I
Cabinet information
- Supply voltage
- Max. current
- Weight of the device
5

3 - HANDLING
The unit must be lifted using slings or a spreader beam or be carried by a pallet truck and all four corners of the unit must be supported
by wooden blocks. In all cases, the lifting point has to be at the base of the unit. The unit shall be handled by qualied personnel. Refer
to the information given on the relevant label on the unit.
IMPORTANT: The unit must be handled with care and kept upright.
==
3.1 - Weights and dimensions:
SIZES Unit W
Dimensions H x W x D. Weight (kg)
5
1700 x 680 x 500
115
8 120
12 125
16 1900 x 850 x 780 280
27 1900 x 1150 x 780 310
SIZES
X unit
Indoor unit SIZES
CL2 condensation unit
Outdoor unit
Dimensions
H x W x D
Weight
(kg)
Dimensions
H x W x D
Weight
(kg)
5
1700 x 680 x 500
115 CL2 28 658 x 1035 x 449 69
8 120 CL2 28 658 x 1035 x 449 69
10 125 CL2 35 658 x 1035 x 449 69
12 1900 x 850 x 780 280 CL2 35 658 x 1035 x 449 69
15 CL2 50 1258 x 1035 x 449 101
19 1900 x 1150 x 780 310 CL2 65 1258 x 1035 x 449 112
24 CL2 75 1258 x 1035 x 449 118
31 1900 x 1490 x 780 375 2 x CL2 50 1258 x 1035 x 449 202
36 2 x CL2 65 1258 x 1035 x 449 224
38 1900 x 1990 x 780 480 2 x CL2 65 1258 x 1035 x 449 224
48 2 x CL2 75 1258 x 1035 x 449 236
6

EN
4 - LOCATION OF COMPONENTS
4.1 - W 5/8/12/16/27:
Chilled water model
3
2
5
6
10
1
4
7
9
98
1- Filter
2- Disconnect switch
3- Control unit
4- Condensate draining
5- Cooling coil
6- Heating coil (optional)
7- Humidier (option)
8- Fan motor assembly
9- Removable plate for hydraulic connections (bottom or right-hand side)
10- Control valve
4.2 - X 5/8/10/12/15/19/24/31/36/38/48:
Direct expansion model
8
7
3
2
5
6
10
11
4
91
1- Filter
2- Disconnect switch
3- Control unit
4- Condensate draining
5- Evaporator coil
6- Heating coil (optional)
7- Humidier (option)
8- Fan motor assembly
9- Removable plate for hydraulic connections (bottom or right-hand side)
10- Expansion valve
11- Solenoid valve
7

4.3 - Assembly/air ow direction
UNDER 1 OVER 3 OVER 4 OVER 5
5 - INSTALLATION: UNIT/FRAME/PLENUM
5.1 - Setting the unit in place
-The unit must be placed on a at, smooth surface which is as level as possible (ratio of approx. one to one thousand).
-If the supply air is conveyed through a raised oor, the seal between the unit and the oor must be tight.
-The unit need not be anchored to the oor if it is operated under normal conditions.
-Provide sufcient space for maintenance around the unit.
-The cabinet frame must rest fully on its contact surface.
■Units tted with a support base
-The oor must be as at as possible,
-A seal must be placed between the unit and bed of the frame.
-Level the unit by adjusting the legs on the support base, (see the drawing of the base
supplied with the unit)
5.2 - Units equipped with a plenum:
■Supply/extraction plenum
Proposed when air is to be distributed directly into a space. It is mounted on top of the cabinet and
features double-deection grilles to allow the direction of the air stream to be adjusted.
The plenum may also be used mounted at the bottom to carry air directly from a space back to the air
handling system.
The plenum is secured from the inside at the 4 corners. To secure it, the diffusion grille on the front panel
must therefore be removed.
2
1
4 - LOCATION OF COMPONENTS
8

EN
6 - CONNECTIONS
6.1 - Air connections
■Indoor unit
The air connection is made using rigid ducts in sheet steel or similar, tted with a drilled connection ange. It is secured with self-tapping
screws. A gasket should be tted between the ange and the unit.
For units to be tted as UNDER models (air discharge to the ground), a support base is available as an option to enable this. If the
raised oor allows, a single hole is required, in the raised oor itself, with the same dimensions as the base. Tightness will be ensured
by tting a gasket between the unit and the support frame.
6.2 - Hydraulic connections
The hydraulic pipes must be routed through the plate provided for this purpose.
UNDER
(removable bottom or right-hand side plate)
1 - Remove the precut foam panel,
2 - Drill the external panel,
3 - Make the correct cut-outs in the plate
4 - Put it back in place before routing the tubing, and seal to prevent
any air bypass.
OVER
(Routing on the right-hand side)
■Condensate drain
-Fit a siphon: H = 100 mm
-If the humidier option is selected: the drained water will not ow into the unit's drain pan.
-To have a single drain for both, connect the humidier drain after the unit's drain pan.
-Two wrenches must always be used when connecting or tightening couplings to avoid bending pipes.
-When the condensate pump option is present, it is tted inside the unit (connection via a exible pipe 5 mm in diameter), if the
humidier option has not been selected.
Warning: the operating pressure on the chilled or hot water network must not exceed 8 bar.
■Diameters of water coil connections
Unit W W5 W8 W12 W16 W27
Cooling coil Inlet G1/2" M G3/4" M G3/4" M G3/4" M G1" M
Outlet G1/2" M G3/4" M G3/4" M G3/4" M G1" M
Unit W
X unit
W5
X5
W8
X8
W12
X10
W16
X 12/15
W27
X 19/24 X 31/36 X 38/48
Heating coil Inlet G1/2" M G1/2" M G1/2" M G1/2" M G3/4" M G3/4" M G3/4" M
Outlet G1/2" M G1/2" M G1/2" M G1/2" M G3/4" M G3/4" M G3/4" M
Refer to the section on the "Humidier" to connect the humidier.
6.3 - Refrigerant connections, Unit X
■Installation precautions
-The refrigerant connections between the unit and the condenser must be made by qualied personnel.
-Only insulated copper refrigeration pipes must be used.
-This network must be designed and constructed correctly in order to ensure the entire system operates correctly.
-The pipes must be sufciently exible to withstand uctuations in length, expansion and contraction.
-The liquid line must be angled to ensure it always conveys the uid to the unit.
It is important to avoid:
-Excessive refrigerant uid loss,
-Accumulation of oil,
-Liquid ingress into the compressor, either when operating or idle,
The pipe route must:
-not hinder, nor be hindered by, the existing installation,
-be protected against accidental shocks,
-be visible in its entirety, and not be encased in plaster or concrete.
-The height differences and equivalent lengths between the indoor and outdoor unit must meet the recommendations (see Table).
- The pipe dimensions must ensure a minimum pressure drop, and the minimum and maximum speeds must be complied with to
ensure correct circulation of the gas and movement of the oil.
-Fit oil traps every 4 metres on the vertical columns to ensure the oil is returned to the compressor.
-Check that no contamination has fallen into the tube.
-Carry out all brazing operations using a nitrogen purge.
9

■Refrigerant connection diameters
X unit X5 X8 X10 X12 X15 X19 X24 X31 X36 X38 X48
ø Liquid 3/8" 3/8" 1/2" 1/2" 1/2" 1/2" 1/2" 2 x 1/2" 2 x 1/2" 2 x 1/2" 2 x 1/2"
Ø Gas 5/8" 5/8" 3/4" 7/8" 7/8" 1" 1/8 1" 1/8" 2 x 7/8" 2 x 7/8" 2 x 1" 1/8 2 x 1" 1/8
CL2 condensation
unit CL2 28 CL2 28 CL2 35 CL2 35 CL2 50 CL2 65 CL2 75 2 x
CL2 50
2 x
CL2 65
2 x
CL2 65
2 x
CL2 75
ø Liquid 3/8" 3/8" 3/8" 3/8" 3/8" 3/8" 1/2" 2 x 3/8" 2 x 3/8" 2 x 3/8" 2 x 1/2"
Ø Gas 5/8" 5/8" 3/4" 3/4" 3/4" 7/8" 7/8" 2 x 3/4" 2 x 7/8" 2 x 7/8" 2 x 7/8"
■Refrigerant connections (Outdoor unit)
Refer to the instructions contained in the outdoor unit
WARNING: The unit is delivered with a safety charge. Refer to the table of charges in the "system start-up" chapter
■PRINCIPLE FOR INSTALLATION
TRI 400 V-50 Hz-N+T power supply
Remote control + fault summary
TRI 400 V-50 Hz-N+T power supply
Electrical connection indoor/outdoor unit
(unit on command + outdoor unit fault report)
Connection between modules: 1.5 mm2cable Intake pipes (insulated)
Liquid pipes
Note:
-For all electrical connections, refer to the wiring diagram sent with the indoor and outdoor unit.
-Electrical connection not supplied by CARRIER
-Refrigerant pipe not supplied by CARRIER
IMPORTANT: 50CJ (X 31, X 36, X 38, X 48) models have 2 outdoor units.
6 - CONNECTIONS
10

EN
■Table of the maximum lengths for refrigerant connections
The tables below show the permitted lengths for the pipers and the corresponding maximum height difference.
The values in the tables show the reduction in cooling capacity as compared to the nominal capacity as a percentage.
X 5 + CL2 28 / 3/8" liquid line, 5/8" gas line X 8 + CL2 28 / 3/8" liquid line, 5/8" gas line
Total length (m)
Height difference (m) 6 20 30 Total length (m)
Height difference (m) 6 20 30 40 50
00 -6 -9 00 -3 -5 -7 -9
50 -6 -9 10 - -3 -5 -7 -9
10 - -6 - 20 - -3 -5 -7 -9
30 - - -5 -7 -9
X 10 + CL35 / 3/8" liquid line, 3/4" gas line
Total length (m)
Height difference (m) 6 20 30 40 50
00 -2 -4 -6 -8
10 - -2 -4 -6 -8
20 - -2 -4 -6 -8
30 - - -4 -6 -8
X 12 + CL2 35 / 3/8" liquid line, 3/4" gas line X 15 + CL2 50 / 3/8" liquid line, 3/4" gas line
Total length (m)
Height difference (m) 6 20 30 40 50 Total length (m)
Height difference (m) 6 20 30 40 50
00 -2 -4 -6 -8 00 -2 -4 -6 -8
10 - -2 -4 -6 -8 10 - -2 -4 -6 -8
20 - -2 -4 -6 -8 20 - -2 -4 -6 -8
30 - - -4 -6 -8 30 - - -4 -6 -8
X 19 + CL2 65 / 3/8" liquid line, 7/8" gas line X 24 + CL2 75 / 1/2" liquid line, 7/8" gas line
Total length (m)
Height difference (m) 6 20 30 40 50 Total length (m)
Height difference (m) 6 20 30 40 50
00 -4 -5 -6 -7 00 -2 -3 -4 -5
50 -4 -5 -6 -7 10 - -2 -3 -4 -5
10 - -4 -5 -6 - 20 - -2 -3 -4 -5
20 - -4 -5 - - 30 - - -3 -4 -5
X 31 + 2 x CL50 / 2 x 3/8" liquid line, 2 x 3/4" gas line X 36 + 2 x CL65 / 2 x 3/8" liquid line, 2 x 7/8" gas line
Total length (m)
Height difference (m) 6 20 30 40 50 Total length (m)
Height difference (m) 6 20 30 40 50
00 -5 -7 -8 -9 00 -4 -5 -6 -7
10 - -5 -7 -8 -9 10 - -4 -5 -6 -7
20 - -5 -7 -8 -9 20 - -4 -5 - -
25 - - -7 -8 -
X 38 + 2 x CL2 65 / 2 x 3/8" liquid line, 2 x 7/8" gas line X 48 + 2 x CL2 75 / 2 x 1/2" liquid line, 2 x 7/8" gas line
Total length (m)
Height difference (m)
6 20 30 40 Total length (m)
Height difference (m) 6 20 30 40 50
00 -4 -5 -6 00 -5 -7 -8 -9
10 - -4 -5 -6 10 - -5 -7 -8 -9
20 - -4 -5 - 20 - -5 -7 -8 -9
30 - - -7 -8 -
6 - CONNECTIONS
11

6.4 - Electrical connection
-The cable must be protected by a grommet.
- The electrical connections and wiring must be set up as shown on the electrical diagram included with the unit and in accordance
with applicable codes and regulations.
-Make sure that electrical rating given on the unit's number plate matches that of the mains supply.
-The unit must be connected to earth and the electrical supply must always be powerful enough to supply the necessary power.
-The indoor and outdoor units each have their own power supplies.
- The electrical cable must be selected based on the necessary length, power, protection and operating mode, and in accordance
with applicable codes and regulations.
■INDOOR UNIT electrical specications
3-phase 400 V + Neutral + Earth – 50 Hz
Unit W W5 W8 W12 W16 W27 X 31/36 X 38/48
X unit X5 X8 X10 X 12/15 X 19/24
Fan motor assembly
Voltage (V) 230 V
Power (kW) 1,036 1,029 2,072 2,058 3,087
Current (A) 4,51 4,38 9,02 8,76 13,14
Control circuit
(transformer)
Voltage (V) 24 V
Current (A) 1
Humidier (option)
Voltage (V) 400 V
Power (kW) 2,25 6
Current (A) 3,2 8,7
Electric heater (option)
Voltage (V) 400 V
Power (kW) 3 6 9 12 18 24
Current (A) 4,3 8,7 13 17,3 26 34,6
Total current without
option
Current (A) 5,51 5,38 10,02 9,76 14,14
Rating of main switch (A) 16
Total current with
humidier only
Current (A) 8,71 14,08 18,72 18,46 22,84
Rating of main switch (A) 16 25
Total current with
electric heater only
Current (A) 9,81 14,21 18,38 27,32 35,76 48,74
Rating of main switch (A) 16 25 40 63
Total current with
all options
(Humid. + El. heater)
Current (A) 13,01 17,41 27,08 36,02 44,46 57,44
Rating of main switch (A) 16 25 40 63
■OUTDOOR UNIT electrical specications
3-ph 400 V power supply + Neutral + Earth – 50 Hz
Refer to the instructions contained in the outdoor unit
To connect the Indoor/Outdoor unit, see the appendix at the end of the instructions.
6 - CONNECTIONS
12

EN
7 - TECHNICAL CHARACTERISTICS
7.1 - Filters
EN 779-2012 efciency: M5
ISO16890 efciency: ePM10 50%
Thickness: 48 mm.
Efciency: 90% gravimetric
Filter area: 2 x the face area
Fire rating: M1.
EN 779-2012 efciency: F7
ISO16890 efciency: ePM1 60%
Thickness: 48 mm
Efciency: 85% opacimetric
Filter area: 17 x face area with a thickness of 48 mm
Fire rating: M1
Unit W
X unit
W5
X5
W8
X8
W12
X10
W16
X 12/15
W27
X 19/24 X 31/36 X 38/48
Dimensions 508 x 465 604 x 465 700 x 465 945 x 565 945 x 400 945 x 565 945 x 500
Number 1111224
■Pressure drops - clean lters
Unit W
X unit
W5
X5
W8
X8
W12
X10
W16
X 12/15
W27
X 19/24 X 31/36 X 38/48
Nominal ow rate (m³/h) 1 300 2 000 2 500 4 000 6 000 8 000 12 000
∆P (Pa) M5/ePM10 50% 33 49 55 53 58 53 58
∆P (Pa) F7/ePM1-60% 35 53 59 57 63 57 63
∆P (Pa) M5+F7(ePM10 50%+ePM1 60%) ---110 121 110 121
Filter fouling is measured by a pressure sensor located in the electrics box.
It is set to 1.5 times the pressure drop value for the lter when clean (pressure tapping upstream and downstream of the lter).
7.2 - Cooling coil:
Note: make sure that the chilled water supply pipes are insulated.
Moderately tighten the coil supply connections to avoid damaging the manifolds.
■Coil specications
Unit W W5 W8 W12 W16 W27
Coil
specications
Rated water ow rate (1)m³/h 1,1 1,4 1,67 2,57 3,7
Capacity (I) 2,2 2,74 3,87 9,2 13,1
Valve
specications
KV valve 1,6 2,5 4 4 10
∆Pmax (Pa) 2-way valve 1200 400 400 600 600
∆Pmax (Pa) 3-way valve 250 100 240 600 600
(1) Return air conditions 24°C RH 50%, water temperature 7/12 °C
NOTE: Refer to your temperature range selection sheet for the technical information (capacity, water ow, water ow rates, pressure drops, etc.).
13

7.3 - Refrigerant circuit checks:
X schematic diagram:
1 REFRIGERATING CIRCUIT
X 5 to 24
21
45
3
2 REFRIGERATING CIRCUITS
X 31 to 49
4
3
3
21
4
5
5
1 - Evaporator coil
2 - Thermostatic expansion valve
3 - Compressor
4 - Dehumidier lter
5 - Condenser coil
7 - TECHNICAL CHARACTERISTICS
14

EN
■R410A refrigerant charges:
Table 1
Charge in kg per circuit, distance between VERTICAL UNIT and CL2 CONDENSATION UNIT = 0 m
Vertical unit X X5 X8 X10 X12 X15 X19 X24 X31 X36 X38 X48
CL2 condensation
unit CL2 28 CL2 28 CL2 35 CL2 35 CL2 50 CL2 65 CL2 75 2 x
CL2 50
2 x
CL2 65
2 x
CL2 65
2 x
CL2 75
Charge in kg 1,69 1,69 1,952 1,952 3,134 3,68 3,894 3,334 3,38 4,38 4,594
Heater OPTION OPTION OPTION OPTION STD STD STD STD STD STD STD
Crankcase(1)
(1) Maximum charge without crankcase heater: 4.5 kg
Table 2
Charge in kg per circuit to be added according to distance between VERTICAL UNIT and CL2 outdoor unit
CL2 condensation
unit
Distance (m)
1 3 6 9 12 15 20 25 30 35 40 45 50
28 0,055 0,165 0,33 0,495 0,66 0,825 1,1 1,375 1,65 1,925 2,2 2,475 2,75
35 0,058 0,174 0,348 0,522 0,696 0,84 1,16 1,45 1,74 2,03 2,32 2,61 2,9
50 0,061 0,183 0,366 0,549 0,732 0,915 1,22 1,525 1,83 2,135 2,44 2,74 3,05
65 0,07 0,21 0,42 0,63 0,84 1,05 1,4 1,75 2,1 2,45 2,8 3,15 3,5
75 0,101 0,303 0,606 0,909 1,212 1,515 2,02 2,525 3,03 3,535 4,04 4,545 5,05
On-site charge calculation per circuit = Table 1 charge + table 2 charge
7.4 - Heating coil and valve (option)
Moderately tighten the "coil supply" connections to avoid damaging the manifolds.
■Coil and valve specications:
Unit W
X unit
W5
X5
W8
X8
W12
X10
W16
X 12/15
W27
X 19/24 X 31/36 X 38/48
Coil
specications
Rated
water ow(1) (m³/h) 0,2 0,25 0,33 0,6 0,86 1,21 1,24
Capacity (I) 0,56 0,67 0,78 1,67 2,35 3 4
Valve
specications
KV valve 1,6 4
∆Pmax (Pa)
2-way valve 1200 400
∆Pmax (Pa)
3-way valve 250 250 250 250 240 240 240
(1) Nominal ow rate, water ∆T: 20 °C
Note: Refer to your temperature range selection sheet for the technical information (capacity, water ow, pressure drops, etc.).
7 - TECHNICAL CHARACTERISTICS
15

7.5 - Air ow rate setting (indoor unit)
The air ow rate can be adjusted on-site directly via the control:
-Parameter P155 (CCU Controller)
-No control, inside the electrics box.
■Min. air ow rate (m3/h) for 50CJ W with electric heater and/or humidier
Unit W W5 W8 W12 W16 W27
Min. air ow rate value (m³/h) 650 1000 1250 2000 3000
■Min. air ow rate (m3/h) for Unit X
X unit X5 X8 X10 X12 X15 X19 X24 X31 X36 X38 X48
Min. air ow rate value (m³/h) 600 900 950 2 000 2 000 4 000 4 000 6 000 6 000 8 000 8 000
7.6 - Condensate drain pump (option)
Specications:
-230 V-50 Hz-35 W power supply
-Max ow rate: 30 l/h
-Max. discharge height: 10 m
Condensate pan
Condensate drain pump
■Table of actual ow rates
The pressure drops dened in this table are
calculated with a hose 6 mm in diameter
Discharge height
(m)
Total pipe length
5 m
(l/h)
10 m
(l/h)
20 m
(l/h)
30 m
(l/h)
NPSH 0 m
1 29 27 25 23
2 27,5 25,5 24 22
3 25,5 24 22 20,5
4 23,5 22 20 19
5 21 19,5 18 16,5
6 16,5 15 14
7 14 12,5 11,5
8 11,5 10 9
9 9 7,5 6,5
10 6 5 4
7 - TECHNICAL CHARACTERISTICS
16

EN
7.7 - Humidier (option)
The immersed-electrode humidier is tted with a microprocessor-based controller that adapts, within the allowable operating limits,
to the physical and chemical properties of the water used.
Voltage is applied to the electrodes immersed in the water; an electrical current passes between them, heating the water to boiling
point.
The water acts as an electrical resistance, ensuring continuity between the electrodes and a minimum of dissolved salts.
Unit W
X unit
W5/8/12
X 5/8/10
W 16/27
X 12/15/19/24/31/36/38/48
Make/model KUE T1 COW21 KUE T2 COW21
Control voltage V 24 24
Absorbed power in control circuit Without 9 V A valve
With 35 V A valve
High power circuit voltage 3-PH/400 V 3-PH/400 V
Power circuit current A 3,2 8,7
Protection rating A 10 16
Max. steam ow rate kg/h 3 8
Maximum power kW 2,25 6
Factory steam ow rate setting kg/h
W 5/X 5 : 1.5
W 8/X 8 : 1.9
W 12/X 10 : 2.4
W 16/X 12/15 : 3.9
W 27/X 19/24 : 5.7
X 31/36 : 7.7
X 38/48 : 8.0
Factory power setting kW
W 5/X 5 : 1.13
W 8/X 8 : 1.45
W 12/X 10 : 1.80
W 16/X 12/15 : 2.88
W 27/X 19/24 : 4.32
X 31/36 : 5.75
X 38/48 : 6.00
Water supply pressure bar 1 to 10
Max. water supply ow rate l/min 0,6 1,2
Conductivity of supply water µS/cm 350 to 1250
Hardness of supply water TH in mg/l
CaC03 100 to 400
Drain water ow rate l/min 10
Water supply Ø G 3/4 M
Drain Ø 32 M
Weight kg 2 3.3
If a water softener or water treatment system is used, the water hardness should not be less than 40% of the initial hardness and
should never be less than 15°F. (TH = 150 mg/l CaC03)
7 - TECHNICAL CHARACTERISTICS
17

7.8 - Electric heater (option)
■Specications:
Choice of electric heater per model
-Galvanised sheet metal panel
-Shielded, coiled nned tubing
-High-inertia heater element
-Power supply voltage: 400 V, 3-phase, 50 Hz
-Control: 2 stage or TRIAC depending on option selected.
Unit W
X unit
W5
X5
W8
X8
W12
X10
W16
X 12/15
W27
X 19/24 X 31/36 X 38/48
Voltage V 400
Power kW 3 6 9 12 18 24
Current A 4,3 8,7 13 17,3 26 34,6
Power Stage 1 kW 3,0 6,0 12,0
Stage 2 kW - 3,0 6,0 12,0
Number of heaters
x Power
Stage 1 kW 3 x 1 3 x 2 3 x 4
Stage 2 kW - 3 x 1 3 x 2 3 x 4
Total current A 4,3 8,7 13 17,3 26 34,6
7.9 - Control
Congurable CARRIER CCU Controller. For adjustment and parameter setting, refer to the corresponding manual.
CARRIER CCU Controller
7 - TECHNICAL CHARACTERISTICS
18

EN
8 - SYSTEM START-UP
All operations on the refrigerant circuit must be carried out in accordance with the applicable environmental
regulations.
After making the necessary electrical and hydraulic connections, carry out the system start-up and check the following steps:
-Check the tightness of the electrical connections,
-Check the hydraulic connections (direction of inlet/outlet connections),
-Make sure the inside of the cabinet is clean and free of foreign bodies,
-Check the electrical supply voltage and the ratings of the overload protections against the current ratings of each component,
-Check the height of the trap,
-Vent the air out of the coils via the bleed screws,
-Check the circuits for any leaks; retighten the valve if necessary,
-To congure the setpoints, refer to the "CCU Controller" manual
-The air ow rate can be adjusted manually using the inverter
-If a master/slave control system is used, make sure that the connection cable between the vertical units is in place.
-Evacuate the system to obtain -0.1 M Pa (-760 mm Hg),
-Fill with the required quantity of refrigerant uid (for charges see the "Refrigerating circuit" section),
-Simulate a trip of the electrical components, controlled instruments and alarms.
-Check the current of each.
■Standard components:
-Temperature alarm,
-Air ow alarm,
-Condensation unit,
-Fan motor assembly
■Optional components:
-Temperature low limit alarm,
-Outer contact servo control,
-Electric heater,
-Humidier
-Hot water valve
-Check the cleanliness of the humidier supply water (option),
-After allowing the unit to run for a few hours, check the fouling level of the lter, especially in the case of an F7/ePM1 60% lter.
19

9 - MAINTENANCE
It is possible to remove the doors in order to facilitate access to the various components.
For dual doors:
Open the left-hand door using the centre latch and lower the 2 right-hand door targets (for dual doors).
Pull out the pin and remove the hinge (detail A and B)
Lift off the door (Detail C)
DETAIL A
DETAIL B
DETAIL C
20