Wiring Thermostat To Communicating Systems - Daikin One+ Reference Manual

Wiring Thermostat to Communicating Systems

Maximum wire distance between the Daikin One+ and the
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indoor unit should not exceed 125 feet using 18-gauge wire.
For installing the Daikin Fit outdoor system, it is strongly
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recommended (for best results) to use 18-gauge wire.
Check for proper voltage before and after wiring
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is installed.
0.6 VDC between Data 1 and 2
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24 VAC between common and power
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Wiring communicating indoor unit to communicating
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outdoor units.
Connect 1, 2, C and R from the Daikin One+, to 1, 2, C
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and R at the indoor unit.
Connect wires 1 and 2 from the indoor unit to 1 and 2
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at the outdoor unit.
Wiring communicating indoor furnace unit to non-communicating
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outdoor units.
Connect 1, 2, C and R from the Daikin One+, to 1, 2, C and R
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at the indoor furnace unit.
Connect wire Y1 from the indoor furnace unit to Y1 at
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the outdoor unit
Under Equipment Setup add '24 VAC Condenser'.
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Under '24 VAC Condenser' select the matching kBTU
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from 'cool CFM' settings
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