Carrier 53KHRT 12-18-24 Crystal Installation Manual page 48

TEST RUNNING (Cont.)
20.3 STEPS OF COOLING TEST RUNNING for model 53KHRT12
(1) Move circuit breaker to ON position.
(2) Operate the system for cooling at high fan speed
by using wireless remote control
(3) After system operation becomes stabilized:
- Measure low pressure to check correct
refrigerant charge. (See figure & table)
- Measure total Amps consumed by the system.
SYSTEM MODEL
AMBIENT TEMP ºC
LOW PRESSURE
TOTAL AMPS
Note:
Readings at 220 volt and 27 ºC return air to indoor unit and high speed of indoor unit motor.
20.3 STEPS OF COOLING TEST RUNNING for models 53KHRT18 & 53KHRT24
(1) Move circuit breaker to ON position.
(2) Operate the system for cooling at high fan speed
by using wireless remote control
(3) After system operation becomes stabilized:
- Measure low pressure to check correct
refrigerant charge. (See figure & table)
- Measure total Amps consumed by the system.
Note:
Readings at 220 volt and 27 ºC return air to indoor unit and high speed of indoor unit motor.
System Cooling Test Running
53KHRT12
35
70
PSI
5.6
System Cooling Test Running
SYSTEM MODEL
AMBIENT TEMP ºC
LOW PRESSURE PSI
TOTAL AMPS
Outdoor Unit
(1) Low Pressure Measuring.
46 52 35
74 76 60
7.2 8.1 8.9
Details
(1) Low Pressure Measuring.
53KHRT24
35 46
69 72
11.7 13.3
46
Details
53KHRT18
46 52
62 63
10.4 11.2
Outdoor Unit
(1)
52
73.5
14.2
(1)