12
English
8. ELECTRIC WIRING WORK
• All field supplied parts and materials and electric works must conform to local codes.
• Use copper wire only.
• For electric wiring work, refer also to “WIRING DIAGRAM” attached to the unit body.
• For remote controller wiring details, refer to the installation manual attached to the remote controller.
• All wiring must be performed by an authorized electrician.
• A circuit breaker capable of shutting down power supply to the entire system must be installed.
• Be sure to install an earth leakage breaker.
Failure to install an earth leakage breaker may result in electric shocks.
• Refer to the installation manual attached to the outdoor unit for the size of power supply electric wire
connected to the outdoor unit, the capacity of the circuit breaker and switch, and wiring instructions.
• Be sure to ground the air conditioner.
• Do not connect the ground wire to gas pipes, plumbing pipes, lightning rods, or telephone ground wires.
•
Gas pipes: could explode and cause fires if there was a gas leak.
•
Plumbing pipes: no grounding effect if hard vinyl pipes are used.
•
Telephone ground wires or lightning rods: the ground potential could rise dangerously high if hit by
lightning.
•
Specifications for field wire
NOTE
1.
Shows only in case of protected pipes. Use H07RN-F in case of no protection.
2.
Insulated thickness : 1mm or more.
〈
Methods of wiring units and connecting remote controller cords
〉
• Detach the Terminal box lid as shown in the figure and connect the wires to the unit wiring terminal board
(3P) on the right side of the unit matching phase. Then, fix the wire using the clamp.
• Arrange the wires and fix a lid firmly so that the lid does not float during wiring work.
• Lock wires connecting the units and the grounding line to the pipe retainer.
[ PRECAUTIONS ]
• Do not clamp remote controller cords together with wires connecting the units. Doing so may cause
malfunction.
• Remote controller cords and wires connecting the units should be located at least 50mm from other electric
wires. Not following this guideline may result in malfunction due to electrical noise.
Wire
Size (mm
2
)
Length
Wiring the units
H05VV-U4G
(NOTE 1)
2.5
–
Remote controller cord
(In case of installing the
control panel separately)
Vinyl cord with sheath or
cable (2 wire) (NOTE 2)
0.75 - 1.25
Max. 500m
3
2
1
Earth terminal
Earth terminal
Clamp
Wiring
diagram
Terminal box lid
Power supply
terminal board (3P)
Wiring the units
Earth wire
Pipe retainer
How to connect wiring
01_EN_3PA60136-8Y.fm Page 12 Saturday, December 22, 2007 1:04 PM
