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Indoor unit D
Indoor unit B
Indoor unit A
Indoor unit C
Ground
Power:
Single-phase,
220/240VAC 50HZ
Power switch
(not provided)
Outdoor unit
Terminal board
Label A
Inter-unit cables
Terminal board
Inter-unit cables
Terminal board
Label B
Label C
Inter-unit cables
Terminal board
Inter-unit cables
Terminal board
Label D
A
B
C
D
Power cable (not provided)
(ø3.5 mm: Less than 26 m)
ø1.0 (not provided)
ø1.0 (not provided)
ø1.0 (not provided)
ø1.0 (not provided)
Be sure to perform grounding.
Attach a ground wire to either the
outdoor unit or indoor unit.
If there is a grounding terminal
inside the room, use the grounding
screw inside the indoor unit.
Be sure to apply the provided labels to both
ends of the inter-unit cables to prevent mis-
wiring. The units will not function if the wiring
connections are incorrect.
A is the indoor unit with
refrigerant tubing that is
connected to service valve
A (bottom) of the outdoor unit.
“B” is the indoor unit with refrigerant
tubing that is connected to
service valve B (second from
the bottom) of the outdoor unit.
C is the indoor unit with refrigerant
tubing that is connected to
service valve C (third from the
bottom) of the outdoor unit.
refrigerant tubing that is
connected to service valve
D (top) of the outdoor unit.
D is the indoor unit with
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1 2 3 4 5 6 7 8 9 10 11 12
22
English
5-5. Wiring Instructions for the Outdoor Unit
● Be sure to correctly align inter-unit cables A, B, C and D.
● Use a dedicated Air Conditioner circuit for power.
● To make connections to the outdoor unit, remove the
inspection panel and tubing panel.
● Do not bring the inter-unit cables or power cable into
contact with tubing or service valves.
● Use outdoor unit cable fasteners and fasten the
inter-unit cables at the location where the cables are
double-sheathed.
● Arrange the wiring so that the inter-unit cables are
contained in the inspection panel and tubing panel,
as shown in Fig. 31.
CAUTION
Fig. 31
08-253 CMRV3146EH_OU EN 10/14/08 2:39 PM Page 22