1
CHA/FC 642÷2204
AIRCOOLED LIQUID CHILLERS FREE-COOLING WITH AXIAL
FANS, SEMI-HERMETIC COMPRESSORS AND SHELL AND TUBE
EXCHANGERS.
FROM 165 kW TO 600 kW.
UNIT DESCRIPTION
The water coolers of the CHA/FC 642÷2204 series offer innovative
technology to meet the needs of large systems for both domestic as
well as industrial applications requiring the production of cooled water
continuously year-round.
During the cold months, in the FREE-COOLING operation mode,
the return liquid of the system is cooled directly by forced convection
of outdoor air through the condensation battery, thus saving energy
by not operating the unit’s semihermetic compressors. A 3-way valve
system is commanded by an electronic microprocessor controller
that manages the entire unit, allowing functioning in CHILLER, FREECOOLING or MIXED (simultaneously CHILLER and FREE COOLING)
modes. The product range includes 13 models composed of versions
with tank, with pump or with tank and pump.
VERSIONS
CHA/FC
Cooling only
FEATURES
ACCESSORIES
• Self-supporting galvanized steel frame protected with polyester
powder painting.
• Semi-hermetic compressors type complete with cranckcase
heater, oil sight glass, incorporated thermal protection and shut off
valves.
• Axial fans directly coupled to an electric motor with external rotor.
• Condenser made of FREE-COOLING copper tube and aluminium
finned coil.
• Shell and tube type evaporator, with two indipendent refrigerants
circuits and one water circuit.
• R407C refrigerant.
• Electrical board includes: main switch with door safety interlock,
fuses, overload protection for compressors and thermocontacts
for fans.
• Microprocessor control and regulation system.
Factory fitted accessories:
IM
Protection module
SL
Unit silencement
BT
Low Temperature Kit
HRT/P
Total heat recovery in parallel
SP
Inertial tank
PU
Single circulating pump
PD
Double circulating pump
SPU
Inertial tank and single circulating pump
SPD
Inertial tank and double circulating pump
MF
Muffler
RF
Cooling circuit shut off valves
SS
Soft start
CP
Potential free contacts
Loose accessories:
MN
High and low gauges
MO
Compressor oil gauges
CR
Remote display
IS
RS 485 serial interface
RP
Metallic guards for condenser
AG
Rubber shock absorbers
AM
Spring shock absorbers
FL
Flow switch
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TECHNICAL DATA
R407C
CHA/FC 642÷2204
Unit with SPU
accessory
Sound pressure
Weights
kW
kW
°C
kW
n°
n°
n°
l/s
kPa
DN
n°
m³/s
V/Ph/Hz
A
A
kW
Pump available static press.
kPa
Storage water volume
l
Expansion vessel
l
Water connections
DN
STD (3)
dB(A)
SL (3)
dB(A)
Transport weight (4)
Kg
Transport weight (5)
Kg
Operating weight (4)
Kg
Operating weight (5)
Kg
CHA/FC 642÷2204
COOLING CAPACITY (1)
Cooling
Absorbed power (1)
air temperature (2)
Free-cooling cycle
Absorbed power (2)
Quantity
Type
Compressors
Refrigerant circuits
Capacity steps
Water flow
Evaporator
Pressure drops
Water connections
Fans
Condenser
Air flow
Power supply
Electrical
Max. running current
characteristics
Inrush current
Pump nominal power
Unit with SPU
accessory
Sound pressure
Weights
kW
kW
°C
kW
n°
n°
n°
l/s
kPa
DN
n°
m³/s
V/Ph/Hz
A
A
kW
Pump available static press.
kPa
Storage water volume
l
Expansion vessel
l
Water connections
DN
STD (3)
dB(A)
SL (3)
dB(A)
Transport weight (4)
Kg
Transport weight (5)
Kg
Operating weight (4)
Kg
Operating weight (5)
Kg
642
702
802
902
1002
1102
1202
165
57.6
5.2
5.9
2
191
59.6
4.2
5.9
2
219
73.5
3.9
5.9
2
241
79.3
3
5.9
2
Semi-hermetic
2
4
12.46
94
100
6
19.17
400 / 3 / 50
168
300
4
108
1100
35
100
66
64
3050
3400
3320
4770
261
86.7
4
7.8
2
300
96.7
2.9
7.8
2
326
106
2.1
7.8
2
2
2
2
8.53
62
100
6
20
9.87
71
100
6
20
11.32
98
100
6
19.17
124
195
4
172
660
24
100
66
64
2730
3075
2930
3935
144
226
4
154
660
24
100
66
64
2830
3165
3080
4075
168
300
4
117
1100
35
100
66
64
3000
3350
3270
4720
2
2
2
13.49
81
100
8
24.44
15.5
72
100
8
24.44
16.85
65
125
8
24.44
186
332
4
109
1100
35
100
66
64
3240
3610
3530
5010
240
430
5.5
146
2000
80
100
66
64
3520
3890
3810
6235
260
440
5.5
145
2000
80
125
66
64
3800
4200
4100
6545
1502
1602
1604
1804
2004
2204
354
114
1.3
7.8
2
363
126
2.3
9.8
2
438
145
0.6
9.8
4
482
157
-0.3
9.8
4
522
167
-1
9.8
4
600
197
0.4
20
4
2
2
2
2
2
2
18.3
92
125
8
24.44
18.76
79
125
10
29.44
22.64
72
125
10
29.44
24.92
81
150
10
29.44
27
90
150
10
29.44
31
79
150
10
40.28
296
567
5.5
113
2000
80
125
66
64
4130
4550
4500
6950
296
567
5.5
124
2000
80
125
67
65
4480
4950
4900
7400
336
468
5.5
108
2000
80
125
67
65
4780
5350
5330
7800
336
468
7.5
129
2000
80
150
67
65
4830
5400
5405
7850
480
670
7.5
113
2000
80
150
67
65
5000
5480
5600
8030
480
670
7.5
106
2000
80
150
71
69
5350
5950
6000
8500
Semi-hermetic
4
400 / 3 / 50
CHA/FC 642÷2204
COOLING CAPACITY (1)
Cooling
Absorbed power (1)
air temperature (2)
Free-cooling cycle
Absorbed power (2)
Quantity
Type
Compressors
Refrigerant circuits
Capacity steps
Water flow
Evaporator
Pressure drops
Water connections
Fans
Condenser
Air flow
Power supply
Electrical
Max. running current
characteristics
Inrush current
Pump nominal power
1
DIMENSIONS
CHA/FC
L
P
H
STD
STD
STD
mm
mm
mm
642
702
802
902
1002
1102
1202
1502
1602
1604
1804
2004
2204
4400
2200
2265
4400
2200
2265
4400
2200
2265
4400
2200
2265
5500
2200
2265
5500
2200
2265
5500
2200
2265
5500
2200
2265
6700
2200
2265
6700
2200
2265
6700
2200
2265
6700
2200
2265
6700
2200
2265
DIMENSIONAL
NOTES
CLEREANCE AREA
(1)
CHA/FC 642÷2204
A (*)
B
C
D
mm
mm
mm
mm
1000
1800
500
1800
(2)
(3)
(4)
(5)
(*)
Chilled water (with ethilenic glycol at
30%) from 15° to 10°C, ambient air
temperature 35°C.
Ambient air temperature at wich the
cooling capacity indicated in point (1)
is reached.
Sound pressure level measured in free
field conditions at 1 m from the unit
and. According to ISO 3744.
Unit without tank and pump.
Unit with tank and pump.
A SIDE: Electrical board side.
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