Trane TVR Pro CO Series Service Manual page 111

3.2 Normal Operating Parameters of Refrigerant System
Under the following conditions, the operating parameters given in Tables 6-3.4 should be observed:
 The master outdoor unit can detect all the indoor units.
 The number of indoor units displayed on DSP2 is steady and is equal to the actual number of indoor units installed.
 All stop valves are open and all indoor unit EXVs are connected to their unit's PCB.
 If the combination ratio is 100% or less, all the indoor units are currently running and if the combination ratio is more
than 100%, indoor units with total capacity equal to the total capacity of the outdoor units are currently running.
 The system is being run in cooling mode with the following settings: temperature 17°C; fan speed high.
 The system has been running normally for more than 30 minutes.
Table 6-3.4: Outdoor unit cooling mode operating parameters
Outdoor ambient temperature
Discharge temperature
Discharge superheat
Discharge pressure
Suction pressure
°C < 10 10 to 26
°C 60-76 62-78
°C 17-30 17-33
MPa 2.3-2.8 2.3-2.8
MPa 0.6-0.7 0.7-0.9
110
26 to 31 31 to 41
65-82 67-92
17-34 17-36
2.4-3.6 2.6-3.8 3.1-4.2
0.8-1.0 1.0-1.2 1.2-1.4
> 41
69-92
10-32