Gree GMV-Y72WM/C-F Owner's Manual page 50

4.8.2 External wiring diagram of modular connection
QF
AC POWER 3
3
QF
Power cord
QF QF
Power cord
PV1+PV1- PV2+ PV2- PV3+PV3- PV4+PV4-
DC POWER
G
G
ODU n
Communication cord
L1
L2
L3
QF
L1 L2 L3
G
G
COMMUNICATION
D1 D2 H1 H2
IDU 1
NOTICE! Maximum number of ODU (N) and maximum number of IDU (n) are based upon
the combination type of ODU. For details, please refer to the introduction of units' combination.
4.9 Installation of Photovoltaic System
4.9.1 Notice for installation
Improper operation or not following operation instruction may cause safety hazards and
serious damage to hardware, or even property loss or personal injury. Please read this manual
carefully and follow all safety instructions listed below.
（1） Before installation, please cut off all connections between air conditioner, electric
network and photovoltaic. Use the specialized tool (packing materials in the unit) to
remove the positive pole and negative pole of photovoltaic input cable; pay attention to
the removed photovoltaic input cable terminal to avoid electric shock; do not touch the
terminal or conductor connected with the grid and photovoltaic input circuit; any
connection point between air conditioner and grid may cause fire hazard or electric
shock.
（2） The air conditioner may have unrecoverable damage due to electric discharge of internal
component. When operating this device, please follow the static power protection
regulation.
（3） Electric shock and fire hazard may cause electric leakage hazard. Before connecting the
photovoltaic and grid, please ensure the air conditioner is reliably grounded.
PV Array
3
QF QF
QF QF
AC
PV1+PV1- PV2+ PV2- PV3+PV3- PV4+PV4-
AC
POWER
G
G
COMMUNICATION
D1 D2 G1 G2
Power cord
QF
L1 L2
POWER POWER
COMMUNICATION
D1 D2 H1 H2
IDU 2
Wired controller
Wired controller
Photovoltaic Direct-driven Inverter VRF
PV Array
3
QF
QF QF QF
AC
AC
DC POWER
POWER
COMMUNICATION
ODU 2
D1 D2 G1 G2
QF
L1 L2 L3
G G G G POWER
COMMUNICATION
D1 D2 H1 H2
IDU n
Wired controller
Fig.4.8.2
46
PV Array
QF QF QF
QF
PV1+PV1- PV2+ PV2- PV3+PV3- PV4+PV4-
DC POWER
G G
COMMUNICATION
ODU 1
D1 D2 G1 G2
master module
Remote monitor
Wire
(resistance-matching)
3
QF
AC
AC
POWER