46
figure 6�6 – Wiring diagram of the appliance with low consumption fan (S1)
LeGend
SCH1
S61 circuit board
SCH2
W10 circuit board
SCH3
Mod10 circuit board
TER
Appliance power terminal block
CNTBOX
Flame controller
PWRTR
Board transformer
BLW
Blower
PMP
Hydraulic pump
IGNTR
Ignition transformer
IGN
Ignition electrodes
FLS
Flame sensor
LS
Gas valve ON indicator lamp
GV
Gas solenoid valve
TC
Manual fumes thermostat
TL
Generator limit thermostat
FM
Flowmeter
CWS
Condensation water sensor
VD
Defrosting valve
FAN
Fan
C
Fan condenser
(not present on silenced units)
FS
Condensate hose heating element
THRC
Hot water return temperature sensor
THMC
Hot water delivery temperature sensor
TMIX
Combustion air temperature sensor
TA
Ambient air temperature sensor
TG
Generator temperature sensor
TF
Fumes temperature sensor or genera-
tor fin sensor
TEVA
Evaporator outlet temperature sensor
TK
Condensate discharge heating element
thermostat
MA
Terminal block
REED
Hydraulic pump rotation sensor
6�2
HoW to ConneCt tHe APPLIAnCe eLeCtRICALLY
Before making electrical connections, make sure not to work on live elements.
You will need: the appliance in its permanent location.
Use a cable type FG7(O)R 3Gx1.5 for the power supply to the appliance.
1.
Connect power supply with the cable indicated at point 1, fitting close to the appli-
2.
ance a two-pole isolator switch with 3 mm distance between contacts (see detail
«GS» in Figure 6.7 Electrical wiring diagram
→
47) and two 5A fuses type T or a 10A
magnetothermic breaker.
