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11
Insulation Installation Precautions
1.
Seal so that air cannot be in and out of the end.
2.
Do not over tighten the clamp so as to maintain the insulation thickness.
3.
Be sure to attach the insulation (field supply) with the seams facing up.
(See figure at right.)
7. ELECTRIC WIRING WORK
7-1 GENERAL INSTRUCTIONS
•
All wiring must be performed by an authorized electrician.
•
All field supplied parts and materials, electric works must conform to local codes.
•
Always ground wires. (In accordance with national regulations of the pertinent country.)
•
Always turn off the power before performing the electric wire installation work.
•
Follow the “WIRING DIAGRAM” attached to the unit body to wire the outdoor unit and indoor units.
•
Properly connect wire of the specified wire type and copper thickness. Also use the included clamp to avoid
applying excessive force to the terminal (field wire, ground wire).
•
Do no let the ground wire should come in contact with gas pipes, water pipes, lighting rods, or telephone
ground wires.
•
Gas pipes: gas leaks can cause explosions and fire.
•
Water pipes: cannot be grounded if hard vinyl pipes are used.
•
Telephone ground and lightning rods: the ground potential when struck by lightning gets extremely high.
•
A circuit breaker capable of shutting down the power supply to the entire system must be installed.
•
This system consists of multiple BS units. Mark each BS unit as unit A, unit B . . . , and be sure the terminal
board wiring to the outdoor unit and indoor unit are properly matched. If wiring and piping between the out-
door unit, BS unit and an indoor unit are mismatched, the system may cause a malfunction.
•
Do not turn on the power supply (branch switches, overload interrupters) until all other work is done.
Insulation Attachment Instructions
Two-pipe distribution side: Indoor unit connection side
Insulation Attachment Instructions
(on three-pipe side)
Piping insulation
(Product piping side)
Pipe connection
Insulation material
(Field supply)
Piping insulation
(Site piping side)
(1) Attach the included
insulation.
(2) Seal
(3) Use the clamps (accessory)
to hold both ends.
Note 1: For suction gas pipes, HP/LP gas
pipes, and gas pipes, after
attaching the included insulation
tube, wrap more insulation (field
supply) around the connections.
Main unit
Main unit
(3) Use the clamps (field supply)
to hold both ends.
(2) Seal
Bind the insulation material with an
appropriate material, such as a tape,
so that there will be no clearance.
(1) Attach the insulation.
(Field supply)
Piping insulation
(Site piping side)
Reducer (Field supply)
Pipe connection
(Field supply)
Piping insulation
(Product piping side)
Attach facing up
Seam
01_EN_3P194121-4J.fm Page 11 Wednesday, June 10, 2009 12:39 PM