Midea V6-i Series Service Manual page 28

-i
Oil return operation in heating mode and defrosting operation
Figure 2-3.11: 20/22/24HP refrigerant flow during oil return operation in heating mode and during defrosting 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
Heating operation
Figure 2-3.12: 20/22/24HP refrigerant flow during heating 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
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
V6-i VRF 50/60Hz
Unit on
Fan
Thermostat on
off
Filter
Filter
480 steps
Unit on
Fan
Thermostat on
off
Filter
Filter
480 steps
Unit off
Fan
off
Filter
Filter
480 steps
Unit on
Fan
Thermostat off
off
Filter
Filter
480 steps
Unit on
Fan
Thermostat on
on
Filter
Filter
Normal control
Unit on
Fan
Thermostat on
on
Filter
Filter
Normal control
Unit off
Fan
off
Filter Filter
Closed
Unit on
Fan
Thermostat off
on
Filter
Filter
Closed
27