Wiring System Diagram - Technibel GRF148MR5I Technical & Service Manual

WARNING
G
Be sure to comply with local codes on running
the wire from the indoor unit to the outdoor unit
(size of wire and wiring method, etc.).
G Each wire must be firmly connected.
G
No wire should be allowed to touch refrigerant
tubing, the compressor, or any moving part.
G Be sure to connect power wires correctly
matching up numbers on terminals of the
outdoor unit and respective indoor units A – D.
CAUTION
G Be sure to connect the power supply line to the outdoor unit as shown in the wiring diagram. The indoor
unit draws its power from the outdoor unit.
G
Do not run wiring for antenna, signal, or power lines of television, radio, stereo, telephone, security sys-
tem, or intercom any closer than 1 meter from the power cable and wires between the indoor and outdoor
units. Electrical noise may affect the operation.

5-3. Wiring System Diagram

2 indoor units with GRF148, GRF198
(B)
1
2
A (C)
3
4
Grounding
line
(B)
1
2
B (C)
3
4
Grounding line
Power supply
Single-phase 220-240VAC 50Hz
220VAC 60Hz
Grounding line
Fig. 25a
OUTDOOR UNIT
Terminal ( 8P )
1
2
3
(B)
4
5
6
(B)
7
8
(A)
20
WARNING
G To avoid the risk of electric shock, each air
conditioner unit must be grounded.
G
For the installation of a grounding device,
please observe local electrical codes.
G Grounding is necessary, especially for units
using inverter circuits, in order to release
charged electricity and electrical noise
caused by high tension.
Otherwise, electrical shock may occur.
G
Place a dedicated ground more than 2 meters
away from other grounds and do not have it
shared with other electric appliances.
4 indoor units with GRF248, GRF318
(B)
1
2
A (C)
3
4
Grounding
line
(B)
1
2
B
3
4
(C)
Grounding line
(B)
1
2
C (C)
3
4
Grounding line
(C)
1
2
D
3
4
Grounding line
Fig. 25b
OUTDOOR UNIT
Terminal ( 12P )
1
2
3
(B)
4
5
6
(B)
7
8
9
(B)
(B)
10
11
12
(B)
1
Terminal
2
(3P)
3
(A)