Dhw Mode - Immergas VICTRIX 24 kW Manual

Technical Documentation
VICTRIX 24 kW functioning sequence.
CH mode
Voltage applied
Main selector switch in winter position
Enabling of integrated P.C.B. functioning
The closure of the main selector switch contacts (winter
position) enables the functioning in central heating mode
Closure of room thermostat switch/CAR functioning
request
Request of the room thermostat or the CAR (if mounted)
detects conditions that require functioning in CH mode
Pump and 3-way valve power supply
The integrated P.C.B. powers the boiler pump and the elec-
tric 3-way valve. The valve is taken to the CH position
The pressure in the primary circuit that is higher than the minimum cut-off value causes the closure of the system pressure
The integrated P.C.B. powers the ignition electrode by means of the ignition sub-unit.
With the consent of the overheating safety thermostat and the flue safety thermostat, the integrated P.C.B. powers the gas
The integrated P.C.B. detects burner ignition by means of the ionisation electrode
The burner functions at a variable power depending on the type of request, the adjustments/settings made and the tem-
STVkW ed 07/08
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Closure of system pressure switch micro switch
switch contact
Fan power supply
The integrated P.C.B. powers the fan
Ignition electrodes power supply
Gas valve coil power supply
Burner ignition (slow)
The integrated P.C.B. keeps the fan functioning at the ignition speed
Flame detection
Boiler operating
peratures detected by the NTC probes
Main selector switch in summer or winter position
Enabling of integrated P.C.B. functioning
The closure of the main selector switch contacts (summer
position) enables the functioning in DHW mode
Closure of the DHW flow switch
Withdrawal of DHW
Pump and 3-way valve power supply
The integrated P.C.B. powers the boiler pump and the elec-
tric 3-way valve. The valve is taken to the DHW position
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valve coils
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Technical Documentation

DHW mode

Voltage applied
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VICTRIX 24 kW Export