CLIVET G4D2GB-4 Manuel utilisateur
C. Art. M24D40G3-04 G4D2GB-4.doc
DIRECT EXPANSION
CLOSE CONTROL UNIT WITH
REMOTE CONDENSER
MR-DX 17-25-31-41-61-71-81
INSTALLATION,
OPERATION AND
MAINTENANCE MANUAL
GENERAL
THIS MANUAL CONTAINS THE FOLLOWING SECTIONS WHICH ARE TO BE CONSIDERED AN INTEGRAL PART
OF THE WHOLE AND ARE THEREFORE NOT TO BE DETACHED
G4D2GB-4
R4D2GB-4
E4D2GB-4
F4D2GB-4
C4D2GB-4
General Information
Reception
Electrical connections
Start-up
Controls
M4D2GB-4
L4D2GB-4
P4D2GB-4
N4D2GB-4
K4D2GB-4
Routine maintenance
Water connections
Refrigerant pipes
Air filters
Residual risks
IMPORTANT
The contents of this manual are designed to assure the
correct installation, adjustment and maintenance of the unit;
therefore:
- read the instructions with due care and attention;
- the appliance must be installed, tested and serviced by
properly qualified personnel (law n.45, 5.3.1990) licensed in
accordance with established legislation.
The manufacturer declines all liability, and guarantee
coverage is automatically waived, if electrical and/or
mechanical modifications are made to the unit. Tampering
and unauthorized repairs or modifications to the unit will
automatically void the guarantee.
Observe the safety regulations in force at the time of
installation.
Make sure that the characteristics of the mains network
conform to the data on the serial number plate inside the
electrical panel.
Conserve this manual and the circuit diagram with care.
Make sure that they are available for consultation by the
operator whenever necessary.
Packing materials (plastic wrappings, expanded polystyrene,
nails, etc.) are potentially hazardous and must be kept out of
reach of children. Recycle packing materials in accordance
with local bylaws.
The water chiller must be used only for the purpose for
which it is designed. The manufacturer bears no responsibility
in the case of applications other than the specified use.
Disconnect the unit in the case of breakdowns or
malfunctions.
If repairs are necessary use only Clivet-approved service
centres and always insist on original spare parts.
The use of non-original parts and/or unauthorized service
centres may result in unsafe operation of the unit.
The manufacturer declines all liability for direct or indirect damage to property or injury
to persons resulting from failure to adhere to the instructions in this manual.
ADDITIONAL SAFETY PRECAUTIONS
This unit has been especially designed and manufactured so to prevent any risk to persons and health hazard.
For this reason, design solutions fit to eliminate (where possible) any cause of risk and sensibly reduce the probability of
danger have been adopted.
Please refer to the Residual risks section of this manual and strictly observe the behaviour prescriptions listed there in
order to prevent any possible risk that hasn’t been possible to avoid in the design stage.
2
GENERAL SPECIFICATIONS
Sizes
17
25
31
41
61
71
81
Standard voltage
400/3/50
Cooling capacity (1) kW
5.8
8.3
9.4
12.5
17.0
19.1
23.2
Sensible capacity (1) kW
5.3
6.9
8.1
11.2
14.6
15.5
21.4
Compr.input power (1) kW
1.5
2.3
2.9
3.0
4.7
5.6
5.8
Compressor type
Scroll
N° of compressors
1
Total oil quantity kg
1.00
1.10
1.10
1.85
1.65
1.65
4
Handling zone
Frontal surface m2
0.36
0.44
0.64
0.78
N° of rows
3
4
Fin space mm
1.8
Coonections
Gas connection mm
16
18
Liquid connection mm
12
14
16
Condensate drain mm
22
Handling zone fans (Outlet)
N° of fans
1
2
Fan diametre mm
252
280
252
280
RPM rpm
600
1100
1300
1400
1300
1400
Standard air flow l/s
472
555
639
944
1150
1888
Single motor input kW
0.35
0.55
0.35
0.55
Max. ext. static press. Pa
50
Max. ext. static press. (2) Pa
100
150
200
190
200
190
200
Standard unit weight
Shipping weight (3) kg
166
170
218
265
275
295
Lenght mm
750
925
1250
1500
Depth mm
490
Height mm
1800
Sound levels
Sound Pressure Level (4)dB(A)
47
50
51
53
54
56
58
The data refers to the following conditions:
1) Ambient air 24°C BS/ 16,9°C BU
Relative humidity 50%
External air 35°C
Standard static pressure 50Pa
2) With standard ventilating section, upon request. Contact our sales office for further details.
3) Data refers to the version with outlet downwards.
4) Sound pressure level refers to 1 metre from the outside surface of the unit operating in an open field (version with outlet
downwards)
3
POSITIONING
The units are designed for indoor installation.
Make sure that the supporting surface is perfectly level and able to bear the full weight of the unit (see general
specifications).
Interpose a layer of rubber sheeting between the base of the unit and the supporting surface (to reduce noise and vibration).
Observe the specified functional clearances.
ACCESSORIES
The units can be fitted with the following accessories (upon request):
- Electric heating coil
Electric heating section made from reinforced aluminium
heaters with integral fins, 2 stage operation and safety
thermostat.
- Water heating coil
Extra heating coil with 3-way balancing control valve
supplied by external hot water.
- Hot gas post-heating
Used to maintain the desired room temperature in the
event of an increase in relative humidity, adding sensible
heat to the air which has already been cooled and
dehumidified.
Operation occurs by advantageously exploiting part of the
hot gas taken from the compressor discharge, conveying it
to a coil located downstream of the cooling section.
- Steam humidifier
Immersed electrode steam humidifier with electronic
controller featuring proportional control fitted with humidity
probe on the air intake and steam distributor.
- Differential pressure switch for dirty air filters
Differential pressure switch suitable for measuring a
pressure difference between the air intake and outlet in the
filter section. In the event where the differential pressure is
greater than the set value, a remote alarm is signalled.
- Soundproofing panels
The panels are lined on the inside with micro-perforated
metal plate for the maximum sound insulation.
- Serial communication module to PC or BMS
Serial connection kit for connecting the unit control module
to a centralised control system (PC or BMS).
- Phase monitor
Used to check the presence and the correct sequence of
the phases of the power supply.
- Flooding sensor
Floor water sensor to detect leaks from the water circuit,
with remote alarm.
- Adjustable support frame
Height adjustable support frame using painted telescopic
columns (RAL 7016).
Adjustment is possible from 300-500mm or from 500-
700mm.
- Adjustable support frame with duct
Height adjustable support frame using painted telescopic
columns (RAL 7016), fitted with aluminium deflector that
deviates the flow of air leaving the unit.
Adjustment is possible from 300-500mm or from 500-
700mm.
- Front outlet plenum
Plenum for front air discharge, outlets with double row of
painted "aluzink" adjustable fins (RAL7016).
- Outlet plenum on three sides
Plenum for air discharge from three sides, outlets with
double row of painted adjustable fins (RAL 7016).
- Clock
Programmable clock for automatic starts, set point
changes and time band settings.
- Condensate drain pump
The condensate drain pump is used to discharge the water
present in the pan to the outside, when the outside
discharge point is higher than the pan. The pump is
controlled automatically by a built-in level sensor.
- Isolating damper
The air outlet damper, controlled by an actuator with spring
return, isolates the unit when it is not in operation.
- EU5 air filter
Filter made up of a galvanised plate frame with galvanised
and electric-welded protective mesh, and regenerable
filtering media made from polyester fibre sized with
synthetic resins.
Efficiency F5 according to CEN-EN 779 standard
(classification EU5 according to Eurovent 4/5 –average
colorimetric efficiency between 40% and 60% ASHRAE
52-76 Atm). Self-extinguishing (resistance to flame class 1
- DIN 53438).
- Liquid line solenoid valve
Solenoid valve used to prevent the unwanted migration of
refrigerant during inactivity.
4
AIR INTAKE CONFIGURATIONS
1
2
Possible configurations: 1 = outlet downwards with intake from the front (M3 or D)
2 = outlet upwards with intake from the front (M5 or U)
WARNING: When positioning the unit, leave enough space at the front to inspect the air filters and all
the components subject to checks. To the side of the fittings leave enough space for
connections and checks.
5
AIR OUTLET DIMENSIONS
CBA
D E F
C BA B D
E F G
AABB
H
I
SEZ. B-B
61-71/81
SEZ. A-A
17-25-31/41
I = air outlet downwards
II = air outlet upwards
Sizes
Dimensions
A
B
C
D
E
F
G
H
I
17-25-31
170
300
280
195
255
40
---
630
260
41
260
335
330
173
285
32
---
805
260
61-71
140
305
335
165
200
250
40
1130
260
81
145
333
489
200
172
285
33
1370
260
6
REMOVAL OF THE PANELS
1
3
9
4
5
6
7
8
2
Legend:
1) outlet grill for the version with outlet upwards
2) to remove the side panels, unscrew the 4 inner screws
3) right side panel
4) service panel (can be drilled for connections)
5) service connection
6) inside bottom panel
7) outside bottom panel
8) outside top panel (single piece with the outside bottom panel for sizes 17-25-31-41)
9) left side panel
7
UNIT WITH ONE FAN, INSIDE VIEW (17-25-31-41)
1
23
4
5
6
10
11
9
8
13
14
18
19
20
22
23
15
12
17
16
7
21
Legend:
1) control panel
2) main isolator switch
3) LCD display
4) electrical panel
5) humidity probe (optional)
6) inlet air temperature probe
7) liquid gauge
8) heater section (optional)
9) hot water or hot gas coil (optional)
10) air filter (optional EU5)
11) evaporating coil
12) steam humidifier (optional)
13) flow differential pressure switch
14) filter differential pressure switch (optional)
15) liquid line solenoid valve (optional)
16) dewatering filter
17) bypass cock
18) hot water control valve
19) outlet fan
20) compressor
21) user terminal block (with Isolert3+ option)
22) outlet air temperature probe (optional)
23) power supply input and connections
8
UNIT WITH TWO FANS, INSIDE VIEW (61-71-81)
1
2
3
4
5
6
10
11
9
8
13
14
20
21
23
24
16
12
17
15
7
22
18
19
20
Legend:
1) control panel
2) main isolator switch
3) LCD display
4) electrical panel
5) humidity probe (optional)
6) inlet air temperature probe
7) liquid gauge
8) heater section (optional)
9) hot water or hot gas coil (optional)
10) air filter (optional EU5)
11) evaporating coil
12) steam humidifier (optional)
13) flow differential pressure switch
14) filter differential pressure switch (optional)
15) liquid line solenoid valve (optional)
16) dewatering filter
17) bypass cock
18) hot water control valve
19) outlet fan
20) compressor
21) user terminal block (with Isolert3+ option)
22) outlet air temperature probe (optional)
23) power supply input and connections
For details of the water and gas connections, see the corresponding sections Water connections and Refrigerant pipes.
9
OUTLET PLENUM (optional)
A
B
C
I = air outlet from the front
II = air outlet on 3 sides
Sizes
Dimensions A x B x C
17-25-31
750 x 490 x 450
41
925 x 490 x 450
61-71
1250 x 490 x450
81
1500 x 490 x450
The grills are double row (vertical - horizontal) and can be oriented as desired.
10
ASSEMBLY OF THE OUTLET PLENUM
2
1
Assembly phases:
1) unscrew the screws fastening the front grill
2) fasten the plenum to the unit at the points indicated in the figure, using the fastening screws supplied
3) replace the front grill
Ce manuel convient aux modèles suivants
9
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