Gree GMV-H224WL/A-X Owner's Manual page 24

DC Inverter Multi VRF System
fixed in fixed wiring
Connect the unit to specialized grounding device and make sure it is securely grounded. It's a
must to install air switch and current circuit breaker that can cut off the power of the entire system.
The circuit breaker should include magnetic trip function and thermal trip function so that system
can be protected from short circuit and overload.
（8） Grounding Requirements
1) Air conditioner belongs to class I electrical appliance, so it must be securely grounded.
2) The yellow-green wire inside the unit is a ground wire. Do not cut it off or secure it with
tapping screws, otherwise it will lead to electric shock.
3) Power supply must include secure grounding terminal. Do not connect the ground wire
to the following:
① Water pipe； ②Gas pipe； ③Drain pipe；
④Other places that are deemed as not secure by professional technicians.
4.5.2 Wiring Diagram
（1） Connection of power cord and communication wire
Separate power supply for IDU and ODU
Communication wire
between ODU and IDU
D1
Outdoor
D2
G1
unit
G2
PE
N
L1 L2 L3
Power
Fig.28 Connection of power cord and communication wire for IDU and ODU
（2） Selection of circuit breaker and power cord
Model
GMV-H224WL/A-X
GMV-H280WL/A-X
GMV-H335WL/A-X
GMV-224WL/C-X
GMV-280WL/C-X
GMV-335WL/C-X
Note:
① Selection of circuit breaker and power cord in the above table is based upon unit's maximum power
(maximum current).
② Specification of power cord is based on the working condition where ambient temperature is 40℃ and
multi-core copper cable (working temperature is 90℃, e.g. power cable with YJV cross-linked copper,
Copyright 2018. This translation is property of GREE PRODUCTS SL. All rights reserved. Total or partial reproduction without its express authorization is prohibited.
Indoor unit
communication wire
D1
D2
Indoor
H1
unit 1
H2
L N
Remote
Wired
monitor controller
Power
Power supply
380-415V 3N~ 50/60HZ
380-415V 3N~ 50/60HZ
380-415V 3N~ 50/60HZ
380-415V 3N~ 50/60HZ
380-415V 3N~ 50/60HZ
380-415V 3N~ 50/60HZ
Indoor unit
communication wire
D1
D2
Indoor
H1
unit 2
H2
L N
Wired
controller
Power
Circuit
2
）Number of
（mm
breaker
ground wire * Min
capacity
sectional area (mm
（A）
20 1*2.5
25 1*2.5
25 1*2.5
20 1*2.5
25 1*2.5
25 1*2.5
21
Wire(resistance-
matching)
D1
D2
Indoor
H1
unit N
H2
L N
Wired
controller
Power
2
）Number of
（mm
power cord * Min
2 2
) sectional area (mm )
4*2.5
4*2.5
4*2.5
4*2.5
4*2.5
4*2.5