Midea V6-i Series Service Manual page 27

V6-i VRF 50/60Hz
20/22/24HP
Cooling operation
Figure 2-3.9: 20/22/24 refrigerant flow during cooling operation
High temperature, high pressure gas
High temperature, high pressure liquid
Medium temperature, medium pressure gas
Low temperature, low pressure
11
E S C
6
5
4
3
2 2
T7C1
T7C2
1
1
Oil return operation in cooling mode
Figure 2-3.10: 20/22/24HP refrigerant flow during oil return operation in cooling mode
High temperature, high pressure gas
High temperature, high pressure liquid
Medium temperature, medium pressure gas
Low temperature, low pressure
11
E S C
6
5
4
3
2
2
T7C1
T7C2
1 1
26
11
10 10
7
T3
T4
SV5
9 15
SV2
SV9
11
10 10
7
T3
T4
SV5
9 15
SV2
SV9
13
8
EXVA
12
13
8
EXVA
12
Unit on
Fan
Thermostat on
on
Filter
Filter
Normal control
Unit on
Fan
on
Thermostat on
Filter
Filter
Normal control
Unit off
Fan
off
Filter
Filter
Closed
Unit on
Fan
Thermostat off
on
Filter
Filter
Closed
Unit on
Fan
Thermostat on
on
Filter
Filter
Normal control
Unit on
Fan
on
Thermostat on
Filter
Filter
Normal control
Unit off
Fan
off
Filter
Filter
300 steps
Unit on
Fan
Thermostat off
on
Filter
Filter
300 steps