Fujitsu Wall Mounted Type Panduan Instalasi - Halaman 8
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• Connect the piping so that the control box cover can
easily be removed for servicing when necessary.
• In order to prevent water from leaking into the control box,
make sure that the piping is well insulated.
• When single type installation, the ADAPTER included out-
door unit is necessary to connect the indoor unit to the out-
door unit.
SINGLE TYPE INSTALLATION
MODEL
Liquid pipe
18,000BTU/h model
24,000BTU/h model
MULTI TYPE INSTALLATION
MODEL
Liquid pipe
18,000BTU/h model
24,000BTU/h model
When the fl are nut is tightened properly by your hand, hold the
body side coupling with a wrench, then tighten with a torque
wrench. (See the table below for the fl are nut tightening torques
and adapter tightening torque.)
Torque wrench
Indoor unit pipe
(Body side)
Flare nut tightening torque
Flare nut [mm (in.)]
6.35 (1/4) dia.
9.52 (3/8) dia.
12.70 (1/2) dia.
15.88 (5/8) dia.
19.05 (3/4) dia.
Adapter tightening torque
Adapter type
Tightening torque [N·m (lbf·ft.)]
φ6.35mm (1/4in.)
→φ9.52mm (3/8in.)
φ12.7mm(1/2in.)
→φ15.88mm(5/8in.)
* When using the ADAPTER, be careful not to overtighten the
nut, or the smaller pipe may be damaged.
Indoor unit pipe
En-8
CAUTION
ADAPTER
Gas pipe
Use
Use
Use
No use
ADAPTER
Gas pipe
No use
No use
No use
No use
Tighten with two wrenches.
Holding wrench
Flare nut
Connection pipe
Tightening torque [N·m (lbf·ft)]
16 to 18 (11.8 to 13.3)
32 to 42 (23.6 to 31.0)
49 to 61 (36.1 to 45.0)
63 to 75 (46.5 to 55.3)
90 to 110 (66.4 to 81.1)
16 to 18 (11.8 to 13.3)
49 to 61 (36.1 to 45.0)
Adapter
Flare nut
Connection pipe
7. ELECTRICAL WIRING
] 1
7.1. Wiring system diagram
INDOOR UNIT SIDE
INDOOR UNIT
TERMINAL
DISCONNECT
SWITCH
(FIELD SUPPLY)
Disconnect switch - fi eld supplied if required by local code. Select
the correct capacity of disconnect switch according to the load.
Indoor unit
terminal block
Earth
screw
Disconnect switch
• To connect the indoor unit wires to the terminal correctly,
refer to the fi gure for proper length.
14AWG
25 mm
(31/32 in.)
190 mm
(7-15/32 in.)
CAUTION
Every wire must be connected fi 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 fi re hazard may also exist.
Therefore, be sure all wiring is tightly connected.
Connect wires to the matching numbers of terminals.
OUTDOOR UNIT
14AWG
or BRANCH BOX
(Inter-unit)
Power lines
208/230 V
208/230 V
208/230 V
Please connect
it to the specifi ed
terminal.
Grounding line
Outdoor unit or
Branch box
Please connect
it to the specifi ed
terminal.
Earth wire
25 mm
(31/32 in.)
175 mm
(6-7/8 in.)
Conduit holder
Conduit connector