Gree GUHD series User Manual

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Size of Fitting Pipe(Inch)
Max.
Pipe
Length
(m)
Max. Height
Difference
between
Indoor Unit and
Outdoor Unit m
Amount of
Additional
Refrigerant to be
Filled (For Extra
Length of Pipe)
Liquid Gas
GUHD09NK3CO/GUHD09NK3C1O
GUHD12NK3CO/GUHD12NK3C1O
1/4 3/8
20 15
30g/m
GUHD18NK3CO/GUHD18NK3C1O
1/4 1/2
GUHD24NK3CO/GUHD24NK3C1O
GUHD30NK3CO/GUHD30NK3C1O
GUHD36NK3CO/GUHD36NK3C1O
GUHD36NM3CO/GUHD36NM3C1O
3/8 5/8 30 15
60g/m
GUHD42NK3CO//GUHD42NK3C1O
GUHD42NM3CO/GUHD42NM3C1O
GUHD48NK3CO/GUHD48NK3C1O
GUHD48NM3CO/GUHD48NM3C1O
3/8 5/8 50 30
60g/m
GUHD60NM3CO/GUHD60NM3C1O 3/8 3/4 50 30 60
g/m
4 ELECTRIC WIRING WORK
4.1 Wiring Principle
4.1.1General
a. Perform wiring of the power supply in conformance with the regulations of the local electric company.
b. For the control wires connecting indoor units, and between indoor and outdoor units, use of double-
core shield wires is recommended to prevent noise trouble.
c. Be sure to set the earth leakage breaker and the switches to the power supply section of the indoor
unit.
d. Supply power to each outdoor unit and provide an earth leakage breaker or hand switch for each
outdoor unit.
e. Store wiring system for control and refrigerant piping system in the same line.
f. Arrange the cables so that the electric wires do not come to contact with high-temperature part of the
refrigerant pipe; otherwise coating melts and an accident may be caused.
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h. Installation should be conducted by National Wiring Regulation.
i. The rated voltage and exclusive power supply must be adopted for the air conditioners.
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force. And do not drag the power cable forcibly.
k. The wire diameter of power cable should be large enough, if power cable and connection wire be
damaged, it should be replaced by the exclusive cable.
l. All electric installation must be done by professional personnel according to local law, regulation and
this manual.
m.It should be reliably earthed, and it should be connected to the special earth device, the installation
work should be operated by the professional.
n. The creepage protect switch and air switch must be installed.
o. Air switch should have the thermal dropout and magnetic dropout function, in order to avoid the short
circuit and overload.
p. The on spot connection should refer to the circuit diagram, which is stuck on the unit body.
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s. The yellow-green two-color wiring of air conditioner is grounding wire and cannot be used for other
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t. The user must offer the reliable grounding terminal. Please don’t connect the grounding wire to the
following places:
Ɣ
Water pipe
Ɣ
Gas pipe
Ɣ
Blowing pipe
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Other places that professional personnel consider them unreliable.
Model
Item

Gree GUHD series Specifications

General

Brand	Gree
Model	GUHD series
Category	Air Conditioner
Language	English