Daikin FWH-AT Serie Manual De Instalación, Uso Y Mantenimiento página 47

12 ELECTRICAL WIRING DIAGRAM LEGEND
Make the electrical connections with the power supply disconnected, in accordance with current safety regulations.
Check that the mains electricity supply is compatible with the voltage shown on the unit rating plate.
The electrical connections indicated must be made by the installer
Ū IL: Circuit breaker (not supplied)
Ū F: Safety 2A fuse (not supplied)
Ū CN: Fast on/screw terminal board
Ū MV: Fan motor
Ū C1: Condenser for fan motor
Ū AT: Autotransformer for fan motor
Ū MP: Condensate drainage pump
Ū FLOAT SWITCH: Float
Ū BN: Brown = pump power supply phase
Ū BK: Black = float switch alarm signal
Ū BU: Blue = pump power supply neutral
Ū GY: Grey = common float alarm
Ū VC ON/OFF: ON/OFF cold/hot water valve (2 pipes system) (accessory)
Ū ON/OFF cold water valve (4 pipes system)
Ū VH ON/OFF: hot water valve (4 pipes system) (accessory)
Ū BN: Brown = valves power supply phase
Ū BU: Blue = neutral valve power supply
Ū SAI: Pre-installed internal air temperature probe
Ū SAE: Remote air temperature probe (accessory)
Ū SW: Water temperature sensor (accessory)
Ū SWH: Hot water temperature probe additional coil (4-pipe units). Available in option only with SW.
Ū SUI: Pre-installed internal air relative humidity probe
Ū SUE: Remote air relative humidity probe (accessory)
12.1 SPECIFIC FOR WIRING DIAGRAMS WITH FWECSA CONTROL
Ū T1: Transformer 230Vac/24Vac (not supplied)
Ū VC 0-10: modulating cold/hot water 2 pipes system (accessory); modulating cold water valve 4 pipes system (accessory)
Ū VH 0-10: Hot water valve modulating 0/10V 4 pipes system (accessory)
Ū RD: Red = + 24V valves power supply
Ū BK: Black = 0V valve power suppliy / control signal GND
Ū grey: Grey = 0-10 Vdc valve control signal for modulating
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