Gree GMV-Y72WM/C-F Owner's Manual page 49

Photovoltaic Direct-driven Inverter VRF
4.8 External Electrical Wiring Diagram
(1) Every unit should be equipped with a circuit breaker for short-circuit and overload protection. In general,
circuit breaker is at OFF status.
(2) During operation, all indoor units and outdoor units belonging to the same system must be kept energi zed
status. Otherwise, the unit can't operate normally.
4.8.1 External wiring diagram of a single unit
QF
AC POWER 3
Power cord
QF
Power cord
PV 1+PV 1- PV 2+ PV 2- PV 3+PV 3- PV 4+PV 4-
G
G
master module
L1
L2
L3
G
NOTICE! Maximum number of IDU is based upon ODU capacity. For details, please refer
to the introduction of units' combination.
3
PV Array
QF QF QF
DC POWER
COMMUNICATION
ODU 1
D1 D2 G1 G2
Communication cord
Remote monitor
Power cord
QF
L1 L2 L3
G POWER
COMMUNICATION
D1 D2 H1 H2
IDU 1
Wired controller
AC
AC
POWER
QF
L1 L2
POWER
G
G
COMMUNICATION
D1 D2 H1 H2
IDU 2
Wired controller
Fig.4.8.1
45
QF
L1 L2 L3
G POWER
G
COMMUNICATION
D1 D2 H1 H2
IDU n
(resistance-matching)
Wired controller
Wire