Field Wiring; Optional Parts Cool / Heat Selector - Daikin VRV II Series Design, Installation & Testing Instructions

Field Wiring

7. Field Wiring

Caution All field wiring and components must be installed by a licensed electrician and must comply with
relevant local and national regulations.
The field wiring must be carried out in accordance with the wiring diagrams and the instructions
given below.
Be sure to use a dedicated power circuit. Never use a power supply shared by another
appliance.
This product's reversed phase protection detector only works when the product started up.
The reversed phase protection detector is designed to stop the product in the event of an
abnormalities when the product is started up.
Replace two of the three phases (L1, L2, and L3) during reverse-phase protection circuit
operation.
Reversed phase detection is not performed while the product is operating.
If there exists the possibility of reversed phase after an momentary black out and the power
goes on and off while the product is operating, attach a reversed phase protection circuit locally.
Running the product in reversed phase can break the compressor and other parts.
7.1

Optional Parts Cool / Heat Selector

S1S................... Selector switch (fan, cool/heat)
S2S................... Selector switch (cool/heat)
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Notes:
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180
Use copper conductors only.
When using the adaptor for sequential start, refer to chapter "Examples".
For connection wiring to outdoor-outdoor transmission F1-F2, outdoor-indoor transmission
F1-F2, outdoor-multi transmission Q1-Q2, refer to chapter "Examples".
For connection wiring to the central remote controller, refer to the installation manual of the
central remote controller.
Use insulated wire for the power cord.
Si39-303
Installation Manual