Carrier 50CO Series Manual

INSTALLATION, OPERATION AND
MAINTENANCE INSTRUCTIONS
50CO
Rated cooling capacity 40 - 130 kW
50Hz
Precision cabinet
Translation of the original document

Original text: French version
CONTENTS
1 - INTRODUCTION ..........................................................................................................................................................................3
2 - RECEIPT OF GOODS..................................................................................................................................................................3
2.1 - Checking the equipment............................................................................................................................................................3
2.2 - Identifying the equipment ..........................................................................................................................................................3
2.3 - Documents ................................................................................................................................................................................4
3 - SAFETY INSTRUCTIONS...........................................................................................................................................................4
4 - WARRANTY..................................................................................................................................................................................4
5 - STORAGE OF EQUIPMENT.......................................................................................................................................................4
6 - HANDLING ...................................................................................................................................................................................4
6.1 - Weights and dimensions ...........................................................................................................................................................5
7 - SUPPLY AIR TYPE ......................................................................................................................................................................5
8 - LOCATION & INSTALLATION....................................................................................................................................................6
9 - LOCATION AND MARKING OF COMPONENTS ..................................................................................................................... 7
10 - CONNECTIONS ......................................................................................................................................................................... 8
10.1 - Hydraulic connections .............................................................................................................................................................8
10.2 - Electrical connections..............................................................................................................................................................9
11 - TECHNICAL CHARACTERISTICS ........................................................................................................................................12
11.1 - Basic components ................................................................................................................................................................. 12
11.2 - Optional components............................................................................................................................................................. 15
12 - COMMISSIONING....................................................................................................................................................................23
13 - MAINTENANCE .......................................................................................................................................................................24
13.1 - Filters ....................................................................................................................................................................................25
13.2 - Cooling coil............................................................................................................................................................................26
13.3 - Electric heater .......................................................................................................................................................................26
13.4 - Humidier ..............................................................................................................................................................................27
13.5 - Fans ......................................................................................................................................................................................28
13.6 - Electrics box..........................................................................................................................................................................30
14 - SERVICE INTERVALS.............................................................................................................................................................31
15 - OPERATING READINGS ........................................................................................................................................................31
2

1 - INTRODUCTION
Introduction to the range:
50CO is a range of precision close control units operating with chilled water (W) (temperature and humidity) that is specically tailored
to meet the needs of premises with high heat loads or of sensitive locations (DATA CENTRES, computer rooms, metrology laboratories,
etc.).
It runs using chilled water (W).
The description of the unit is indicated using the following format:
50CO W 040 1
B C D E
Example of designation : 50CO W0401
B Range
C Unit type
-W : chilled water
D Cooling capacity
E Mounting type (direction of air ow)
-UNDER: downwards
-OVER: upwards
2 - RECEIPT OF GOODS
2.1 - Checking the equipment
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 3 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.
2.2 - Identifying the equipment
Each unit has a nameplate located at the bottom of the electrics box that bears an identication number. This number must be quoted
in all correspondence.
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, if electric heater option)
I Cabinet information
-Supply voltage
-Max. current
-Weight of the unit
B
D
F
HGCI
E
3

2 - RECEIPT OF GOODS
2.3 - Documents
The following documents should be inside the unit:
-Instruction manual.
-Control manual.
-Unit wiring diagram
-Key to the wiring diagram.
-Dimensional drawing with connection diagram
-Additional diagrams depending on options.
3 - SAFETY INSTRUCTIONS
Appropriate PPE (personal protection equipment)
is required for any servicing operations on the units
Warning
The unit must be installed and maintained by a qualified, experienced technician. Follow the operating precau-
tions 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.
4 - WARRANTY
See the general terms and conditions of sale
5 - STORAGE OF EQUIPMENT
The unit must be stored in a dry, sealed area, away from moisture and frost. The temperature in this area must not exceed 50°C .
6 - HANDLING
The unit must be handled either with a pallet truck or using a spreader beam and slings. This operation must be carried out 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.
In all cases, the unit must be raised by its base.
Handling with a pallet truck
==
4

6 - HANDLING
Handling with a spreader beam and slings
1100
2500 mini
To be removed while handling,
then replaced once the unit is in
place
If the unit is lifted using a spreader beam and slings:
-Protect the panels.
- First remove all the caps covering the holes for the tubing on the lower section of the equipment.
- Use tubing (Ø max. = 40mm) with a su󰀩cient lifting capacity (see weight table).
- Use fabric slings.
6.1 - Dimensions and weights
SIZE Dimensions
H x W x D Weight (kg)
W40 1990 x 1190 x 890 350
W53 1990 x 1520 x 890 385
W78 1990 x 2070 x 890 545
W100 1990 x 2620 x 890 635
W115 1990 x 3000 x 890 730
7 - SUPPLY AIR TYPE
3 supply air types:
Fitting UNDER
Return air above supply air
underneath
Fitting OVER
Return air on front, supply air
above except W115
Return air underneath, supply
air above except W115
5

8 - LOCATION & INSTALLATION
You must leave space for access to the front and to the right of the unit for maintenance and installation operations.
For free air intake, there must be at least 500 mm above the unit.
1000 mm
1000 mm
500 mm
Under no circumstances should these units be installed in an atmosphere that is:
- Explosive,
- Inammable,
- Corrosive,
- Dusty.
Once at the place of installation, remove the wooden blocks.
Di󰀨erent conguration options are possible:
• The unit can be placed directly on the oor:
The unit must be placed on a at, smooth surface which is as level as possible (ratio of approx. one to one thousand).
The unit casing must rest fully on its contact surface.
The unit need not be anchored to the oor if it is operated under normal conditions.
• Or on one of the following bases:
Support base, cased base with grids, cased base with damper.
(See the technical specications for these options).
It should be placed on a oor that is as level as possible.
Each base comes with feet, which allow the height to be adjusted (in the event of a raised oor) and the base to be levelled before
placing the unit on top.
Before placing the unit on top, an adhesive gasket (supplied with the option) is to be placed on the aluminium casing frame to ensure
its tightness.
The unit can also come with a plenum with grilles or a free-cooling plenum.
(See the technical specications for these options).
Before placing the plenum on the unit, apply the adhesive gasket (supplied with the option) to ensure its tightness.
For the W115 model, and for practical reasons, when the unit is in its nal position, the horizontal gussets (with oblong stamped holes),
located at the bottom of the unit, can be removed (see photo).
Horizontal gussets
6

9 - LOCATION AND MARKING OF COMPONENTS
W40 to W100 Under Assembly
Filters
FMA
FMA access
hatch
Control valve
(cooling coil)
Humidier (option)
Heating coil (option)
Control valve
(Heating coil)
Cooling coil
Electrics Box
Cooling coil
Electric heater
(option)
Additional cabinet
Condensate drain
pump (option)
Condensate drain
pump (option)
W40 to W100 Over Assembly
FMA
Electrics Box
Control valve
(Heating coil)
Cooling coil
Heating coil
(option)
Control valve
(cooling coil)
Humidier (option)
Filters
Cooling coil
Electric heater
(option)
Condensate drain
pump (option)
Additional cabinet
Condensate drain pump
(option)
7

9 - LOCATION AND MARKING OF COMPONENTS
W115 Under Assembly
Electric heater (option)
Access
hatches
Filters
Electrics Box
Cooling coil
Control valve
(cooling coil)
Humidier (Option)
FMA
10 - CONNECTIONS
When following these steps, please consult the dimensional drawing and connection diagram as well as the wiring diagram found
inside the unit.
10.1 - Hydraulic connection
The hydraulic pipes must be routed through the plates provided for this purpose in the unit frame. This is either done to the right of
the unit or directly underneath.
side plate
These plates must be drilled (water circuit + condensate draining) then retted in place before the hydraulic pipes are routed through
them.
For the W115 model, the pipes on the right are routed through a xed insulated panel.
please see the dimensional drawing and connection diagram to locate the routing areas and connection positions
Foam panel
8

10 - CONNECTIONS
Connection diameters:
W40 W53 W78 W100 W115
Cooling coil Inlet G 1"1/4 (M) G 1"1/4 (M) G 1"1/2 (M) G 1"1/2 (M) G 1''1/2 (M)
Outlet G 1"1/4 (F) G 1"1/4 (F) G 1"1/2 (F) G 1"1/2 (M) G 1''1/2 (F)
W40 W53 W78 W100
Heating coil Inlet G 3/4" (M) G 3/4" (M) G 3/4" (M) G 3/4" (M)
Outlet G 3/4" (M) G 3/4" (M) G 3/4" (M) G 3/4" (M)
Always use two spanners when connecting or tightening the hydraulic couplings to avoid twisting the pipes and applying stress on the
welds.
To avoid the risk of condensation, the hydraulic pipes and elements must be carefully insulated.
Before insulating, check the tightness of the couplings.
Warning: the operating pressure on the chilled or hot water network must not exceed 8 bar.
Once all the connections have been made, the access holes must be sealed.
Insulated exible connections are available on request for carrying out hydraulic connections. Ensure these are not bent too acutely
to avoid pinching the inner tube and restricting the ow of water.
Condensate drain
The condensate drain pan should include a siphon to avoid any risk of overowing.
(See position and connection diameter on the dimensional drawing).
In these units, the pan is depressed due to its position in relation to the fan motor assembly.
To enable correct drainage, the height must be equal to at least twice the unit's depression.
67
67
A condensate drain pump option is available (see technical specications), provided that the humidier option has not been requested.
If the humidier option is selected, the discharge must not drain into the unit's drain pan. To have a single discharge for both, connect
the humidier drain downstream of the unit's drain pan.
Warning: the condensates from the humidier can reach 100 °C.
10.2 - Electrical connection
The electrical connections and wiring must be set up as shown on the wiring diagram included with the unit and in accordance with
applicable standards and regulations.
The unit's power supply cable must be determined according to the power of the unit, the length of the cable, the protection, and the
operating mode.
Check that the characteristics of the electrical power supply conform with the indications on the name plate.
Please ensure the unit is connected to earth, and that the power supply is always able to supply the necessary power.
9

10 - CONNECTIONS
Electrical specications:
Three-phase 400 V power supply + Earth - 50 Hz
Table of currents
W 40 W 53 W 78 W 100 W 115
Fan motor assembly
Voltage (V) 400
Power (kW) 3,4 6,8 9,3
Current (A) 5,4 10,8 14,7
Control circuit (transformer) Voltage (V) 24
Current (A) 1
Humidier (option)
Voltage (V) 400
Power (kW) 6
Current (A) 8,7
Electric heater (option)
Voltage (V) 400
Power (kW) 12 18 24 33,6 33,6
Current (A) 17,4 26 34,6 48,4 48,4
Total current without option Current (A) 6,4 6,4 11,8 11,8 15,7
Rating of main switch (A) 16 25
Total current with humidier Current (A) 15,1 15,1 20,5 20,5 24,4
Rating of disconnect switch (A ) 25 40
Total current with electric heater Current (A) 23,8 32,4 46,4 60,2 64,1
Rating of main switch (A) 40 63 80
Total current all options Current (A) 32,5 41,1 55,1 68,9 72,8
Rating of main switch (A) 40 63 80
Recommendations concerning electrical connections of the indoor unit.
Connect the indoor unit so that the main power supply comes from underneath the unit.
Either on the right side of the unit (1 or 2) or from underneath (3). If using a cased base, pass it through one of the grommets on the
right side intended for this purpose (See technical specications).
D
C
B
10

10 - CONNECTIONS
Then follow the routing shown in the gures below.
Cable routing for management
(CMS) or room sensors.
Power supply cable
route
W115 model
When wiring via management systems (CMS) or master/slave control, as well as room sensors, go through the top of the cabinet and
the top section of the box, through the grommets shown in the box views.
In all cases, avoid following the power supply cables, to avoid interference to the signals sent.
Recommendations concerning the cables and routing in the box.
For the communications cables:
• RS485 BUS cable: Multiconductor shielded jacketed cable (shielding with braiding)
- BUS RS485 cable for MODBUS or master/slave communication.
- LON BUS cable for LON communication (see LON specication)
For the room sensor cables:
Multipolar shielded cables with 3 to 5 wires, and a maximum cross-section of 1.5 mm2.
Please refer to the control manual and electrical diagram for more details concerning connection.
Inputs Inlet
Models 40 to 100 Model W 115
Recommended
route for BUS RS
485 cable Raceways
Raceways
Cable routing
LON BUS
LON
gateway
All the cable routings in the unit must be sealed tight.
The cabinet for the W 115 model is supplied with covers which must be tted on the side and front section of the casing.
11

11 - TECHNICAL CHARACTERISTICS
11.1 - Basic components
11.1.1 - Regulation
The units are equipped with a regulation PLC: CARRIER CCU Controller
CARRIER CCU Controller
This is used to manage the unit and ensure it runs smoothly. It is built into the display.
It can be connected to control systems so that the device can be controlled remotely, or to allow for master/slave control with several
units.
For adjustment and conguration, refer to the corresponding manual (20037.03.2015).
11.1.2 - Fan motor assembly (FMA)
EC motor (electronic communication) with "plug fan" type direct drive.
Thanks to their technology, these fans have low energy consumption.
Type of FMA control:
-With the CCU Controller
• W40 to W100: MODBUS control with FMAs equipped with a MODBUS card that sends the following information to the controller:
rotation speed, current used and power input.
• W115: progressive 0-10V control.
12

11 - TECHNICAL SPECIFICATIONS
FMA specications:
W40 W53 W78 W100 W115
Number 1 1 2 2 3
Max. power (kW) 3,4 3,4 6,8 6,8 9,3
Max. current (A) 5,4 5,4 10,8 10,8 14,7
Nominal ow rates of units:
W40 W53 W78 W100 W115
Nominal ow rate (m³/h) 10000 13300 18800 24500 27000
Max. ow rate (m³/h) 13300 13300 20500 27000 27500
Operating pressures downstream of the lters:
W40 W53 W78 W100 W115
Air ow (m3/h) Nominal Maximum Nominal Maximum Nominal Maximum Nominal Maximum Nominal Maximum
10 000 13 300 13 300 13 300 18 800 20 500 24 500 27000 27 000 27 500
Max. operating pressure with G4/
COARSE lter: 65 % (Pa) 400 171 229 229 400 400 343 157 400 400
Max. operating pressure with F7/
ePM1 lter: 55 % (mm) (Pa) 400 60 140 140 400 400 261 68 400 385
If the unit does not operate immediately after installation, you are recommended to start up the unit for at least 1
hour at full speed every 3 months so that any condensates that have inltrated can evaporate and the roller bearings
can move.
11.1.3 - Cooling coil
Make sure that the chilled water supply pipes are insulated.
Moderately tighten the coil supply connections to avoid damaging the manifolds.
The coil is regulated by a two-way or three-way valve equipped with a 0-10V servomotor (mounted and connected)
Coil specications:
COOLING COIL
W40 W53 W78 W100 W115
Coil (4-row coil) Number of coils 1 1 1 1 1
Capacity (l) 11,8 15,8 21 27,4 50,8
Coil (6-row coil) Number of coils - - - - 1
Capacity (l) - - - - 73,8
Units W 40 W 53 W 78 W 100 W 115
Air ow (m3/h) 10 000 13 300 18 800 24 500 27 000
* Maximum operating pressure with G4 ltration / COARSE 65% 400 230 400 344 400
* Maximum operating pressure with F7 ltration / ePM1: 55% 400 141 400 261 400
Total/sensible cooling capacity (kW) 41.9 / 40 57.4/ 54 80.7 / 76 107 / 100 123 /113
Water ow rate (m3/h) 7,2 9,8 14 18 21
"Pressure drop (mWC) (Coil + valve)" 6,4 9,6 8,1 7,1 10
* Conditions: return air 24 °C 45 % (RH)
Water temperature 7/12 °C* Maximum operating pressure dependent on air ow rate. Take o󰀨 approximately 20 Pa if there is a hot water coil on MAGISTER.
The operation point can be adjusted directly via the controller. Hence all the air ow/operating pressure combinations are possible, with the values in the table above as the
maximum values.
13

11 - TECHNICAL SPECIFICATIONS
Units W 40 W 53 W 78 W 100 W 115
Air ow (m3/h) 13 300 13 300 20 500 27 000 27 500
* Maximum operating pressure with G4 ltration / COARSE 65% 175 237 400 124 400
* Maximum operating pressure with F7 ltration / ePM1: 55% 66 148 400 30 395
Total/sensible cooling capacity (kW) 46 / 46 51/ 51 78 / 78 100 / 100 124 / 124
Water ow rate (m3/h) 7,9 8,8 13 17 21
"Pressure drop (mWC) (Coil + valve)" 7,5 7,7 7,5 6,2 10
* Conditions: return air 26 °C 40 % (RH)
Water temperature 10/15 °C* Maximum operating pressure dependent on air ow rate. Take o󰀨 approximately 20 Pa if there is a hot water coil on MAGISTER.
The operation point can be adjusted directly via the controller. Hence all the air ow/operating pressure combinations are possible, with the values in the table above as the
maximum values.
Units W40 W53 W78 W100 W115
Air ow (m3/h) 13 300 13 300 20 500 27 000 27 500
* Maximum operating pressure with G4 ltration / COARSE 65% 174 236 400 123 400
* Maximum operating pressure with F7 ltration / ePM1: 55% 67 145 400 30 384
Total/sensible cooling capacity (kW) 56 / 56 60/ 60 94 / 94 132 / 132 124 /124
Water ow rate (m3/h) 9,6 10 16 23 21
"Pressure drop (mWC) (Coil + valve)" 10 10 10 10 10
* Conditions: return air 32 °C 35 % (RH)
Water temperature 12/17 °C* Maximum operating pressure dependent on air ow rate. Take o󰀨 approximately 20 Pa if there is a hot water coil on MAGISTER.
The operation point can be adjusted directly via the controller. Hence all the air ow/operating pressure combinations are possible, with the values in the table above as the
maximum values.
Maximum permitted di󰀨erential pressure on cold water valve:
W40 W53 W78 W100 W115
KV 16 16 25 40 25
∆P max. Three-way valve 300 300 300 260 300
∆P max. Two-way valve 1200 1200 1000 260 1000
11.1.4 - Filter
Filters:
EN 779-2012 e󰀩ciency: G4
ISO16890 e󰀩ciency: COARSE 65%
Thickness: 48 mm
E󰀩ciency: 90% gravimetric
Filter area: 2 x the face area
Fire rating: M1
Filters:
EN 779-2012 e󰀩ciency: F7
ISO16890 e󰀩ciency: ePM1 55%
Thickness: 48 mm
E󰀩ciency: 85% opacimetric
Filter area: 17 x the face area
Fire rating: M1
CHILLED WATER
W40 W53 W78 W100 W115
Dimensions 1192x600 1192x600 1192x600 1192x600 1140x450
1192x360 1192x360
Number 11346
1 2
Thickness
G4/COARSE: 65 % (mm) 48 48 48 48 48
Thickness
F7/ePM1: 55 % (mm) 48 48 48 48 48
Pressure drops - clean lters:
CHILLED WATER
W40 W53 W78 W100 W115
Flow rate (m³/h) 10 000 13 300 18 800 24 500 27 500
∆P (Pa) G4/COARSE: 65 % 52 57 52 50 69
∆P (Pa) F7/ePM1: 55% (mm) 140 150 140 130 120
14

11 - TECHNICAL SPECIFICATIONS
Filter fouling is measured by a pressure sensor located in the electrics box.
It is set to 1.5 times the value for the lter when clean (pressure ports upstream and downstream of the lter).
11.1.5 - Standard control elements:
(Factory cables)
-An intake temperature sensor.
- A di󰀨erential pressure sensor: attached to the electrics box, this allows the di󰀨erence in pressure upstream and downstream of
the lter to be measured, so as to determine whether the lter is fouled.
-A water leak sensor: this is found at the end of a wound cable located at the bottom of the unit so that it is long enough to extend
downwards into a raised oor, if required, and to be positioned in the area to be monitored. It can be added on request.
It can be added on request.
11.2 - Optional Components
11.2.1 - Heating coil
Moderately tighten the "coil supply" connections to avoid damaging the manifolds.
The coil is adjusted by a two-way or four-way valve equipped with a 0-10V servomotor (mounted and connected).
Coil specications:
HOT WATER
W40 W53 W78 W100
Coil (1 row) Number of coils 1 1 1 1
Capacity (l) 3,82 4,92 6,29 6,29
HEATING COIL
W40 W53 W78 W100 W115
Air ow (m3/h) Nominal Maximum Nominal Maximum Nominal Maximum Nominal Maximum Nominal Maximum
10 000 13 300 13 300 13 300 18 800 20 500 24 500 27 000 27 000 27 500
Heating capacity (kW)* 36 40 44 44 63 66 71 73 - -
Heating capacity (kW)** 18 21 23 23 33 34 37 38 - -
* Conditions: return air 17 °C - 50 %, water temperature 80/60 °C
** Conditions: return air 17 °C - 50 %, water temperature 45/40 °C
Heating coil pressure drop*:
HOT WATER
W40 W53 W78 W100
Nominal water ow (m³/h) 0,9 1,1 1,68 1,9
KV valve 4 4 4 4
∆P Valve only (mWC) 0,6 0,8 1,8 2,3
∆P (Pa) Valve + Coil (mWC) 1,5 1,8 3 3,8
Nominal ow rate: water ∆T: 20 °C
W40 W53 W78 W100
KV 4 4 4 4
∆P max.¹ Four-way valve 240 240 240 240
∆P max.² Two-way valve 400 400 400 400
15

11 - TECHNICAL SPECIFICATIONS
11.2.2 - Electric heater
Operates in two on/o󰀨 stages or with TRIAC (modulating).
The latter allows the power of the electric heater to be varied to ensure it is as close as possible to the required heating capacity. The
connection is carried out in the factory. The electric heater is equipped with two safety thermostats, one with automatic reset and the
other with manual reset.
CHILLED WATER
W40 W53 W78 W100 W115
Power (kW) 12 18 24 33,6 33,6
Power (kW) stage 1 6 12 12 16,8 16,8
stage 2 6 6 12 16,8 16,8
Number of heaters stage 1 3 x 2 kW 3 x 4 kW 3 x 4 kW 3 x 5.6 kW 3 x 5.6 kW
stage 2 3 x 2 kW 3 x 2 kW 3 x 4 kW 3 x 5.6 kW 3 x 5.6 kW
Total current (A) 17,3 26 34,7 48,6 48,6
11.2.3 - Humidier
Functions only with municipal water, and not with demineralised or softened water.
The humidier with immersed electrodes has a card mounted inside the box to relay all information relating to the humidier directly
to the CCU CONTROLLER. It adapts, within the allowable operating limits, to the physical and chemical properties of the water used.
Voltage is applied to the immersed electrodes, and an electrical current passes between them, heating the water to boiling point. The
water acts as an electrical resistor, ensuring continuity between the electrodes with a minimum of dissolved salts.
(The water must have a conductivity of between 350 µS/cm and 125 µS/cm.)
W40 to W115
Control voltage 24 V
Input power
control circuit Without 9 V A valve; with 35 V A valve
High power circuit voltage 3-PH/400 V
Power circuit current (A) 8.7 A
Protection rating 16 A
Max. power 6 kW
Factory power setting W40 to W1006: 6 kW
Factory steam ow rate setting W40 to W100 8 kg/h: (100%)
W115: 8 kg/h: (100%)
Steam ow rate 5 to 8 kg/h
Water supply pressure 1 to 8 bar
Max. water supply ow rate 0.6 L/min
Conductivity of supply water 350 to 1250 µs/cm
Hydrogen ion activity (PH) 7 to 8 ph
Drain water ow rate 4 L/min
Water supply ø G ¾'' male
Drain ø 32 mm
Hardness of TH supply water 100 to 400 mg/l Ca CO³
Connection:
it is supplied with a exible water supply tube at the back of the unit.
To drain it, carry out siphoning.
Warning: the water temperature can reach 100°C.
16

11 - TECHNICAL SPECIFICATIONS
11.2.4 - Condensate drain pump:
This option is only available if the humidier option has not been requested.
Characteristics:
-Power supply: 230V-50Hz-90W
-Max. ow rate: 500 l/h
-Max. discharge height: 5.4 m
-Built-in check valve
Condensate discharge
with check valve
Table of actual ow rates for pump SI 1805
The pressure drops dened in this table are
calculated using a 10 mm diameter exible
connection
Discharge
height
Total pipe length
5 m (l/h) 10 m (l/h) 20 m (l/h) 30 m (l/h)
1 m 460 380 280 200
2 m 390 320 240 180
3 m 300 250 190 150
4 m 200 180 130 100
5 m 90 80 60 50
Connect a exible connection with an int. Ø 10 mm (3/8") (not supplied by CARRIER) to the pump discharge.
For OVER models (3 and 5), if using a spreader beam and slings, the PVC tube will not be directly connected to the pump, for handling
reasons. It must therefore be angled in the right direction and xed to the clamp, as shown below.
Clamp
PVC tube
Elbow
17

11 - TECHNICAL SPECIFICATIONS
11.2.5 - Subbases:
Support subbase:
Adjustable feet
For supply air through a raised oor.
The height can be adjusted from 250 mm to a maximum of 610 mm. Adjustment screws are provided with the base for adjustment on
site. Do not forget to stick the adhesive seal provided to the aluminium frame of the base to ensure tightness.
Cased subbase with grille:
Adjustable feet
Double-deection grids
Grommet for power
supply cable connection
Plate for hydraulic connection
Can be used either for intake or for supply air.
The height can be adjusted from 450 mm to a maximum of 860 mm. Adjustment screws are provided for adjustment on site. Do not
forget to stick the adhesive seal provided to the aluminium frame of the base to ensure its tightness.
Made up of double-deection grids to direct the air ow.
Side hatch for pipe connection (hydraulic or refrigerant connection) + grommet for power supply cable.
Cased subbase with damper:
Grommet for power
supply cable connection
Adjustable feet
Damper
Access hatch for servomotor damper
Plate for hydraulic
connection
This is mainly used to insulate the unit when it is connected to a duct system.
The damper prevents air returning to the unit when it is not operating and when other units are operating nearby.
The height can be adjusted from 630 mm to a maximum of 860 mm. Adjustment screws are provided for adjustment on site.
Do not forget to stick the adhesive seal provided to the aluminium frame of the base to ensure its tightness.
Side hatches for pipe connection (hydraulic connection) and damper servomotor access, as well as a grommet for the power supply
cable.
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11 - TECHNICAL SPECIFICATIONS
11.2.6 - Plenums:
Supply air / intake plenum (H450 mm):
Double-deection grids
Grommet for control cable routing or for
master/slave management, as well as room
sensor cables.
Proposed when air is to be distributed directly into a space. It is mounted on top of the unit and features double-deection grids (one
on each side and on the front) to allow the direction of the air stream to be adjusted manually. The plenum may also be used mounted
at the bottom (UNDER) to carry air directly from a space back to the air handling system.
To mount the plenum, please refer to the diagram provided with the unit.
Do not forget to stick the adhesive gasket provided to the edge of the plenum frame that will be in contact with the unit to ensure its
tightness.
Free-cooling plenum (Height 550 mm):
Access hatch for junction box and
damper servomotors
Grommet for control cable routing or
for master/slave management, as well
as room sensor cables.
2 dampers
Junction box
Servomotor
Grommet for control cable
routing or for master/slave
management, as well as room
sensor cables.
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11 - TECHNICAL SPECIFICATIONS
This accessory should not be installed in corrosive environments (saline environments) or explosive environments (ATEX area).
Composition: This is a mixing box made up of two dampers. (one fresh air side and the other on the room's return air side).
Two combined temperature and humidity sensors are also provided at the back of the unit. (One outdoor sensor and one internal room
sensor).
Internal room sensor Outdoor room sensor
The outdoor sensor should be installed in a well ventilated area that is not exposed to direct sunlight.
Connection: The plenum is mounted above the unit. A diagram provided with the plenum explains the mounting system. Do not forget
to stick the adhesive gasket provided to the edge of the plenum frame that will be in contact with the unit to ensure its tightness.
Electrical connection: When this option is chosen, a wound wiring loom can be found ready at the top of the unit.
Connect this bundle to the junction box as shown on the diagram. For sensors, the cross section of cables must be a maximum of 1.5
mm². If possible, pass the cables through the top section of the plenum using the grommet provided for this purpose and refer to the
routing recommendations in "the Connections" section.
See wiring diagram for connection.
Operation:
A lter must be installed upstream on the fresh air side (type F7, not provided by CIAT and at customer's expense)
so that the indoor air is not adversely a󰀨ected.
The option allows cooling to be carried out using outdoor air (fresh air), in accordance with the temperature and humidity conditions,
to decrease the room temperature. The opening and closing of dampers is managed by the controller according to the information
relayed by the various sensors required for correct operation.
Thanks to these control elements, the controller manages the unit's operating mode.
The cooling contribution to reach the temperature setpoint is then carried out:
-Using fresh air only (outdoor air)
-Fresh air + heat exchange coil.
-Heat exchange coil
11.2.7 - Intake damper on the unit:
This is mainly used to insulate the unit when it is connected to a duct system.
The damper prevents air returning to the unit when it is not operating and when other units are operating nearby.
This option is mounted and connected in the factory. Please see the dimensional drawing and connection diagram for the dimensions
and mounting holes for any potential ducts.
The damper is controlled by the controller, which is tted with a servomotor with a reset function.
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