Electrical Data; Recommended Fuse And Cable Sizes - McQuay AC20C / MAC020C Installation Manual

Table B-1 : ( R407C - Cooling Only )
Model
Power supply
Voltage range
Nominal Power Input
Nominal Current Input
Maximum Continuous Current
Full Load Current (FLA)
Locked Rotor Current (LRA)
Pump Power Input
Table B-2 : ( R22 - Cooling Only )
Model
Power supply
Voltage range
Nominal Power Input
Nominal Current Input
Maximum Continuous Current
Full Load Current (FLA)
Locked Rotor Current (LRA)
Pump Power Input
Table B-3 : ( R407C - Heatpump )
Model
Power supply
Voltage range
Nominal Power Input (Cooling/Heating) kW
Nominal Current Input (Cooling/Heating) A
Maximum Continuous Current
Full Load Current (FLA)
Locked Rotor Current (LRA)
Pump Power Input (Cooling/Heating)
Table B-4 : ( R22 - Heatpump )
Model
Power supply
Voltage range
Nominal Power Input (Cooling/Heating) kW
Nominal Current Input (Cooling/Heating) A
Maximum Continuous Current
Full Load Current (FLA)
Locked Rotor Current (LRA)
Pump Power Input (Cooling / Heating)
Cooling / Heat Pump
Model
Voltage Range **
Recommended Fuse *
Power Supply Cable Size *
Number of Conductor
Interconnection Cable Size *
IMPORTANT : * The figures shown in the table are for information purpose only. They should be checked and selected to comply with
the local/national codes of regulations. This is also subjected to the type of installation and conductors used.
** The appropriate voltage range should be checked with label data on the unit.
• All field wiring must be installed in accordance with the national wiring regulation.
• All the terminals and connections must be tightened. Improper connection and fastenings could cause electric shock, short
circuit and fire.
• Ensure that the rated voltage of the unit corresponds to that of the name plate before commencing wiring work according to
the wiring diagram.
• The unit must be GROUNDED to prevent possible hazards due to insulation failure.
• All electrical wiring must not touch the refrigerant piping, compressor, pump, fan motor or any moving parts of the fan
motors.
• Do not operate the chiller with wet hands. It would result in electric shock.
• Do not use fuse of different amperage than stated. Using wire etc. to replace a fuse could cause equipment damage or fire.

ELECTRICAL DATA

4AC20C
V-ph-Hz
V
kW 2.62
A 12.70
A 18.3
A 14
A 57
W 183
AC20C
V-ph-Hz
V
kW 2.68
A 12.64
A 18.3
A 14
A 57
W 175
4AC20CR
V-ph-Hz
V
2.61/2.69
12.69/12.99
A 18.3
A 14
A 57
W 173/181
AC20CR
V-ph-Hz
V
2.61/2.70
12.38/12.73
A 18.3
A 14
A 57
W 175/186

RECOMMENDED FUSE AND CABLE SIZES

4AC20C/CR 4AC25C/CR
AC20C/CR AC25C/CR
220 ~ 240V /1Ph /50Hz + N + !
A 27
mm 2 10
3
2
mm 1.5 1.5
! ! ! ! ! CAUTION
1-8
4AC25C 4AC30C 4AC40C
230 / 1 / 50
220 - 240
2.96 3.69
13.59 17.48
23 27
17.5 22.5
82 114
189 199
AC25C AC30C AC40C
230 / 1 / 50
220 - 240
2.74 3.50
12.11 16.70
23 27
16.5 21.4
82 114
190 201
4AC25CR 4AC30CR 4AC40CR
230 / 1 / 50
220 - 240
3.09/2.75 3.82/4.00 4.85/5.01
14.3/14.1 19.29/20.19 9.13/9.23
23 27
17.5 22.5
82 114
186/195 194/214 320/334
AC25CR AC30CR AC40CR
230 / 1 / 50
220 - 240
2.95/2.83 3.55/3.56 4.59/4.65
13.4/12.8 18.24/18.37 8.67/8.78
23 27
16.5 21.4
82 114
189/194 201/211 320/329
4AC30C/CR 4AC40C/CR
AC30C/CR AC40C/CR
380 ~ 415V /3Ph /50Hz + N + !
38 45 22
10 10 5
3 3 5
1.5 1.5
4AC50C 4AC60C
400 / 3 / 50
380 - 415
4.94 5.97 6.88
9.29 10.22 12.93
14 14 17
12.4 11.8 14.3
65.5 74 101
320 345 349
AC50C AC60C
400 / 3 / 50
380 - 415
4.50 5.26 6.38
8.80 9.30 12.32
14 14 17
10.5 11.3 12.3
65.5 74 101
320 345 351
4AC50CR 4AC60CR
400 / 3 / 50
380 - 415
5.47/5.66 6.53/6.28
9.59/9.96 12.77/12.67
14 14 17
12.4 11.8 14.3
65.5 74 101
336/347 347/358
AC50CR AC60CR
400 / 3 / 50
380 - 415
5.07/5.01 6.57/6.26
8.99/8.95 13.49/13.03
14 14 17
10.5 11.3 12.3
65.5 74 101
336/349 351/357
4AC50C/CR 4AC60C/CR
AC50C/CR AC60C/CR
24 29
5 5
5 5
1.5 1.5