Electrical Connection To Ecodan - Mitsubishi Electric ecodan PUHZ-W50VHA2 User Manual

Electrical Connection to Ecodan

Electrical Work
All electrical work should be completed as recommended in the relevant Ecodan installation guide supplied with
the heat pump.
Notes:
1. Wiring size must comply with the applicable local and national codes.
2. Power supply cables and the cables between Interface unit/Flow Temperature Controller and outdoor
unit shall not be lighter than polychloroprene sheathed flexible cables. (Design 60245 IEC 57)
3. Be sure to connect the cables between Interface unit/Flow Temperature 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 insufficient
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.
INSTALLATION
The installer must ensure that before the Ecodan outdoor
unit is switched on that DIP switch SW8-3 is set to the on
position. This allows the Ecodan to recognise that power
for the interface is provided via the FTC2.
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Fig. 2.2
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