STEP
4
-ELECTRICAL WIRING
ROUTING 220-240V AC WIRING
!
WARNING
Make sure that all power supply to the unit is disconnected before performing any work on the
unit to avoid the possibility of shock or injury and/or damage to the equipment. After the interior
ceiling assembly frame is properly secured to the roof top air conditioner, the following electrical
connections must be performed.
Figure 7
2 Screws
Come From Roof
Power Cord
Ground Wire
(Yellow-Green Wire)
Top Air
Power Supply
Cord
Conditioner
Strain
Relief
(Clamp)
Strain
Relief
(Clamp)
Brown Wire
Blue Wire
Figure 8
Control Line Comes
From Roof Top Air
Conditioner
Display Box
of Ceiling
Assembly
Connector
Clamp
Figure 9
2.
Take the roof top air conditioner power cord
to connect to the side of the junction box.
3.
Remove the junction box cover (2 screws).
Take the power cord and make it get into the
box through the strain relief that is provided
(see Figure 7).
4.
Connect the power cord to the brown, blue
and ground wires found in the junction box
with a terminal board. CAUTION Connect
brown wire to brown wire, blue wire to blue
wire and the ground wire to earth. (see Figure 8).
5.
Tighten the strain relief clamp to secure the
supply power cord. DO NOT OVERTIGHTEN.
Reinstall the junction box cover.
Frame
Junction Box
Cover
6.
Connect the three connector (four connector) and
secure the clamp (see Figure 9 and Figure 9-1).
The connector should be placed above the
mounted plate of indoor unit, and it should be
higher than the clamp.
-
20
-
1.
Route a copper ,with ground, supply wiring
with minimum 1.5mm , the wiring from its
power source to the junction box. Do not
attach them at this time.
2
Clamp
Three connector
(white to white, black to black)
Figure 9-1
GRH085DA-K3NA1A
GRH085DA-K3NA1A(WIFI)
Clamp
WIFI wire
Four connector
(white to white, black to black)
GRH120DA-K3NA1A
GRH120DA-K3NA1A(WIFI)
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