Wiring Specifications - Mitsubishi Electric PUHZ-W85VHA Service Manual

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WIRING SPECIFICATIONS

FIELD ELECTRICAL WIRING (power wiring specifications)
Outdoor unit power supply
Outdoor unit Circuit Breaker capacity
Outdoor unit power supply, earth
Interface unit/Flow temp. controller-Outdoor unit
Interface unit/Flow temp. controller-Outdoor unit earth
Remote controller-Interface unit/Flow temp. controller
Outdoor unit L-N (single)
Interface unit/Flow temp. controller-Outdoor unit S1-S2
Interface unit/Flow temp. controller-Outdoor unit S2-S3
Remote controller-Interface unit/Flow temp. controller
*1.A breaker with at least 3.0 mm contact separation in each pole shall be provided. Use earth leakage breaker (NV).
*2.Max. 80 m
*3.The figures are NOT always against the ground.
S3 terminal has DC 24 V against S2 terminal. However between S3 and S1, these terminals are NOT electrically insulated by the transformer or other device.
Notes: 1. Wiring size must comply with the applicable local and national codes.
2. Power supply cables and the cables between Controller and Outdoor unit shall not be lighter than polychloro-
prene sheathed fl exible cables.
(Design 60245 IEC 57)
3. Be sure to connect the cables between Controller and Outdoor unit directly to the units (no intermediate
connections are allowed).
Intermediate connections may result in communication errors. If water enters at the intermediate connection
point, it may cause insuffi cient 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.
~/N (single), 50 Hz, 230 V
*1 25 A
3 × Min. 4
*2 3 × 1.5 (polar)
*2 1 × Min. 1.5
2 × 0.3 (Non-polar)
*3 AC 230 V
*3 AC 230 V
*3 DC 24 V
*3 DC 12 V
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