Carrier X-POWER Series Service Manual page 170

R410A DC Inverter Series
Attached table 3: Commissioning and operating parameters of refrigerant system
Conditions 1: Make sure outdoor unit can detect all the indoor units, the quantity of indoor units display steadily and be equal
to actual quantity of installed indoor units.
Conditions 2: Make sure all the valves in outdoor unit are open, indoor units EXV have connected to indoor PCB.
Conditions 3: The ratio of connectable indoor units is 100%. When ambient temperature is high, operate the system in
cooling mode and set the temperature 17℃. When ambient temperature is low, operate the system in heating mode and set
the temperature 30℃. Then get the parameters after system running normally more than 30 minutes.
Outdoor unit cooling parameters table
Ambient temperature (T4)
Discharge pressure (spot check)
Pressure of high pressure valve
Pressure of low pressure valve
Discharge temperature (spot check)
DC Inverter compressor current (spot check)
Fixed compressor current (spot check)
Average temperature of evaporator outlet T2B
Outdoor unit heating parameters table
Ambient temperature (T4)
Discharge pressure (spot check)
Pressure of high pressure valve
Pressure of low pressure valve
Discharge temperature (spot check)
DC Inverter compressor current (spot check)
Fixed compressor current (spot check)
Average temperature of condenser outlet T2
188
℃
20-27
MPa 2.1-2.3
MPa 1.8-2.0
MPa 0.7-0.9
℃
50-65
A 4-5
A 6-7
℃
8-9
℃
-15--5
MPa 2.0-2.2
MPa 1.7-1.8
MPa 2.0-2.2
℃
50-70
A 5
A 6
℃
33
Carrier service manual
27-33 33-38
2.8-3.1 3.3-3.5
2.4-2.7 2.8-3.0
0.8-1.0 1.0-1.2
70-85 70-90
6-7 7-8
8-9 9-11
12-15 16-17
-5-5 5-12
2.2-2.7 3.0-3.1
1.8-2.4 2.6-2.8
2.2-2.6 3.0-3.1
60-70 60-85
5-6 6-8
6-7 9-10
33-40 46-50
Troubleshooting
38-45
3.7-3.9
3.2-3.5
1.2-1.4
80-90
9-11
11-12
20
12-18
2.6-2.7
2.1-2.4
2.5-2.7
60-70
5-6
8-9
39-41