Electric Wiring Work; Wiring Principle - GREE ELECTRIC GUHD09NK3CO Service Manual

U-Match Series DC
Inverter Service Manual
meters.
When the indoor and outdoor units are on different height, please refer to Fig. 30201 for pipe layout.
- - - - - - Gas pipe (i.e. coarse pipe)
Model
GUHD09NK3CO/GUHD09NK3C1O
GUHD12NK3CO/GUHD12NK3C1O
GUHD18NK3CO/GUHD18NK3C1O
GUHD24NK3CO/GUHD24NK3C1O
GUHD30NK3CO/GUHD30NK3C1O
GUHD36NK3CO/GUHD36NK3C1O
GUHD36NM3CO/GUHD36NM3C1O
GUHD42NK3CO//GUHD42NK3C1O
GUHD42NM3CO/GUHD42NM3C1O
GUHD48NK3CO/GUHD48NK3C1O
GUHD48NM3CO/GUHD48NM3C1O
GUHD60NM3CO/GUHD60NM3C1O

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.
g.
h. Installation should be conducted by National Wiring Regulation.
93
Item
Size of Fitting Pipe(Inch)
Liquid
1/4
1/4
3/8
3/8
3/8
Figure 3-2-1
Max.
Pipe
Length
Indoor Unit and
Gas
(m)
Outdoor Unit m
3/8
20
1/2
5/8 30
5/8 50
3/4 50
Max. Height Amount of
Difference Additional
between Refrigerant to be
Filled (For Extra
Length of Pipe)
15
30g/m
15
60g/m
30
60g/m
30 60 g/m