Midea V4+R Series User Manual

V4+R VRF 50/60Hz
100 201608
Midea V4+R Series Service Manual
5.2 Normal Operating Parameters of Refrigerant System
Under the following conditions, the operating parameters given in Tables 5-5.4 and 5-5.5 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.
 If the outdoor ambient temperature is high, the system is being run in cooling mode with the following settings:
temperature 17°C ; fan speed high.
 If the outdoor ambient temperature is low, the system is being run in heating mode with the following settings:
temperature 30°C; fan speed high.
 The system has been running normally for more than 30 minutes.
Table 5-5.4: Outdoor unit cooling mode operating parameters
Outdoor ambient temperature
°C
< 10
10 to 26
26 to 31
31 to 41
> 41
Average discharge temperature
°C
60-76
62-78
65-82
67-92
69-92
Average discharge superheat
°C
17-30
17-33
17-34
17-36
10-32
Discharge pressure
MPa
2.3-2.8
2.3-2.8
2.4-3.6
2.6-3.8
3.1-4.2
Suction pressure
MPa
0.6-0.7
0.7-0.9
0.8-1.0
1.0-1.2
1.2-1.4
DC inverter compressor current A
A
5-12
5-13
5-17
6-17
8-13
DC inverter compressor current B
A
2-6
2-8
2-10
3-10
4-8
Notes:
1. DC inverter compressor current B is only for 14-16HP models.
Table 5-5.5: Outdoor unit heating mode operating parameters
Outdoor ambient temperature
°C
< -10
-10 to 0
0 to 5
5 to 10
10 to 17
> 17
Average discharge temperature
°C
56-74
57-76
58-78
61-82
63-82
63-82
Average discharge superheat
°C
17-35
17-35
17-35
17-33
14-33
14-33
Discharge pressure
MPa
1.7-2.4
1.8-2.5
1.9-3.0
2.2-3.2
2.3-3.2
2.3-3.2
Suction pressure
MPa
1.4-1.6
1.5-1.7
1.6-2.2
1.8-2.6
1.8-2.6
2.0-2.4
DC inverter compressor current A
A
10-15
10-16
5-17
5-17
6-16
6-12
DC inverter compressor current B
A
4-8
4-9
2-10
2-10
3-9
3-7
Notes:
1. DC inverter compressor current B is only for 14-16HP models.

Midea V4+R Series Specifications

General

Brand	Midea
Model	V4+R Series
Category	Air Conditioner
Language	English