Gree U-MATCH Series Service Manual page 80

 The Power supply for indoor unitis from outdoor unit.
(5) Electric wiring of indoor unit side
Remove the electric box cover from the electric box sub-assy and then connect the wire.
 Duct Type Unit：
The F, C, O connect to the COMMOM, CLOSE and OPEN terminal of the fresh air valve
respectively.

Cassette Type Unit:
Outdoor Unit
1
2
L1 N1 L2 N2
1
Breaker
PE
L N
Power:220-240V~50/60Hz
Electric box
sub-assy
U-Match Series DC Inverter Service Manual
3
Indoor Unit
1
2
L N F C O
2
24~60k
Figure 3-2-13
L1 L2
Figure 3-2-14
Figure 3-2-15
77
F C O
H1 H2
1 2