Gree GMV5 Service Manual

GREE Photovoltaic Direct-driven Inverter Multi VRF Units
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2.2.3 Insulation material
(1) Rubber foam insulation material.
(2) Flame retardancy level: B1 or higher.
(3) Refractoriness: at least 120
℃
.
(4) The insulation thickness of condensate water pipe: at least 10 mm.
(5) When the diameter of copper pipe is equal to or greater than Φ15.9 mm, the thickness of
insulation material should be at least 20 mm; when the diameter of copper pipe is less than 15.9
mm, the thickness of insulation material should be at least 15 mm.
2.2.4 Communication cable and control cable
For air conditioning units installed in places with strong electromagnetic interference, shielded wire
must be used as the communication cables of the IDU and wired controller, and shielded twisted pairs
must be used as the communication cables between IDUs and between the IDU and ODU.
(1)Selection for the communication cables of outdoor unit and indoor unit:
Material Type
Total Length L(m(feet)) of
Communication Cable
between IDU Unit and IDU
(ODU ) Unit (m(feet))
Wire size Remarks
Light/Ordinary
polyvinyl chloride
sheathed cord.
L≤1000(3280-5/6) ≥2×AWG18
1. If the wire diameter is enlarged to 2 ×AWG16, the total
communication length can reach 1500m(4921-1/4feet).
2. The cord shall be Circular cord (the cores shall be
twisted together).
3. If unit is installed in places with intense magnetic field or
strong interference, it is necessary to use shielded wire.
(2)Selection for the communication cable between the indoor unit and wired controller:
Material type
Total length of
communication line
between IDU unit and
wired controller L (m(feet))
Wire size Remarks
Light/Ordinary
polyvinyl chloride
sheathed cord.
L≤250(820-1/5)
2×AWG18~
2×AWG16
1. Total length of communication line can't exceed
250m(820-1/5feet).
2. The cord shall be Circular cord (the cores shall be
twisted together).
3. If unit is installed in places with intense magnetic field or
strong interference, it is necessary to use shielded wire.
NOTE
：
All of the selected communication wire must be consistent with local laws and regulations.
2.2.5 Power cable
Only copper conductors can be used as power cables. The copper conductors must meet relevant
national standard and satisfy the carrying capacity of unit.

Gree GMV5 Specifications

General

Brand	Gree
Model	GMV5
Category	Inverter
Language	English