Mitsubishi PUHZ-SHW80YAA User Manual

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7
WIRING SPECIFICATIONS
FIELD ELECTRICAL WIRING (power wiring specifications)
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S1
S2
S3
S1
S2
S3
Warning:
· In case of A-control wiring, there is high voltage potential on the S3 terminal caused by electrical circuit design that has no electrical insulation
between power line and communication signal line. Therefore, please turn off the main power supply when servicing. And do not touch the S1, S2, S3
terminals when the power is energized. If isolator should be used between indoor unit and outdoor unit, please use 3-pole type.
Notes: 1. Wiring size must comply with the applicable local and national codes.
2.
Power supply cables and the cables between Interface unit/Flow temp. controller and outdoor unit shall not be lighter than polychloroprene
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3. Be sure to connect the cables between
Interface unit/Flow temp. controller and outdoor unit directly to the units (no intermediate connections
are allowed).
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insulation to ground or a poor electrical contact .
(If an intermediate connection is necessary, be sure to take measures to prevent water from entering the cables.)
4. Install an earth longer than other cables.
5.
Do not construct a system with a power supply that is turned ON and OFF frequently.
6. Use self-extinguishing distribution cable for power supply wiring.
7. Properly route wiring so as not to contact the sheet metal edge or screw tip.
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Mitsubishi PUHZ-SHW80YAA Specifications

General

Brand	Mitsubishi
Model	PUHZ-SHW80YAA
Category	Air Conditioner
Language	English