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Electrical wirings legend:
Make the electrical connections with the power supply discon-
nected, in accordance with current safety regulations.
Check that the mains electricity supply is compatible with the volta-
ge shown on the unit rating plate.
Traced connection are on responsability of the installer.
•
IL: Circuit breaker (not supplied)
•
F: Fusible 2A (not supplied)
•
CN: Terminal board vite/faston
•
MV: Fan motor
•
C: Pre-wired to motor condenser
•
VC: ON/OFF valve cold water/hot (2-pipes system)
ON/OFF valve cold water (4-pipes system)
•
VH: ON/OFF valve hot water (4-pipes system)
BN: Brown = valves power supply phase
BU: Blu = valves power supply neutral
•
SAI: Pre-installed indoor air temperature probe
•
SAE: Remote air temperature probe
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SW: Water temperature probe
•
SWH: Water temperature probe for additional hot coil (4-pipes
system). Available in option only with SW.
•
SUI: Pre-installed relative humidity indoor probe
•
SUE: Remote relative humidity probe
WARNING: With FWECSA and FWEC controls is possible to manage until 4 speeds. It's mandatory to use O1 input for FWEC and V1 input for
FWECSA. Wire the 4 speeds cables in ascending order (min to max speed) from input 1 to 4. Every selected speed cable which isn't shown
in wiring diagrams for the selected unit isn't "Eurovent certified".
» Base electrical connection for FWB-C 04
•
SC: Relay box
RE: Heating element
TSA: Thermostat
TSM: Thermalfuse
K: Thermostat consent relay
K1: Thermalfuse consent relay
Specific for schemes with FWECSAP control
T1: Transformer 230Vac/24Vac (not supplied)
•
VC 0-10: modulating valve cold water/hot (2-pipes system)
Modulating valve cold water (4-pipes system)
•
VH 0-10: Modulating valve hot water (4-pipes system)
RD: Red = +24Vac valves power supply
BK: Black = 0V valves power supply /GND control signal
GY: Grey = control signal 0-10 Vdc valves
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UT66002764-07
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