Robur GAHP-A, Installation, Use And Maintenance Manual

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1 Features and technical data
Installation, Use and Maintenance Manual – GAHP-A
13
Figure 1�8 – Wiring diagram of the appliance with standard fan
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
1�5 ELECTRONIC BOARDS
Electronic boards (S61+Mod10)
The unit's electrical board contains:
▶
Electronic Board S61 (Figure 1.9 p. 14), with micropro-
cessor, it controls the appliance and displays data, messages
and operative codes. The appliance is monitored and pro-
grammed by interacting with the display and knob.
▶
Auxiliary Mod10 electronic board (Figure 1.10 p. 15),
overlapping S61, it handles power modulation of the burner,
fan and water circulation pump.
▶
Satellite W10 electronic board (Figure 1.11 p. 15), inter-
connected to the S61 board and located next to it, used to
control defrosting operations of the GAHP unit.