En-9
7. ELECTRICAL WIRING
7.1. Wiring system diagram
WARNING
• Every wire must be connected rmly.
• No wire should be allowed to touch refrigerant tubing, the
compressor or any moving part.
• Loose wiring may cause the terminal to overheat or
result in unit malfunction. A re hazard may also exist.
Therefore, be sure all wiring is tightly connected.
• Connect wires to the matching numbers of terminals.
INDOOR UNIT SIDE
Grounding line
DISCONNECT
SWITCH
(FIELD SUPPLY)
14AWG
(Inter-unit)
Power lines
OUTDOOR UNIT
or BRANCH BOX
Please connect
it to the speci ed
terminal.
208/230 V
208/230 V
208/230 V
INDOOR UNIT
TERMINAL
Disconnect switch - eld supplied if required by local code.
Select the correct capacity of disconnect switch according to
the load.
Earth
screw
Indoor unit terminal block
Disconnect switch
Please connect
it to the specified
terminal.
Outdoor unit or
Branch box
x
To connect the indoor unit wires to the terminal correctly,
refer to the gure for proper length.
14AWG
Earth wire
Conduit holder
Conduit connector
25 mm
(1-13/32 in.)
190 mm
(7-15/32 in.)
25 mm
(1-13/32 in.)
175 mm
(6-7/8 in.)
7.2. How to the install the indoor unit wire
harness
1. Remove the screws, then remove the conduit holder.
2. Fasten the indoor unit wire harness to the conduit holder
using the lock nut.
IMPORTANT: Refer to [7.1. Wiring system diagram] about
the length of indoor unit wire harness.
3. Use the screws to install the conduit holder provide with
the indoor unit.
4. Remove the screws, then remove the cable clamper.
5. Connect indoor unit wire harness to the terminal.
Refer to the wiring diagram.
6. Use the screws to install the cable clamper.
Lock nut
Conduit holder
Earth wire
Screw
Conduit connector
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9/8/2010 9:56:10 AM
9/8/2010 9:56:10 AM
