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Control
system
Pellet heating
chamber
2.10 Emergency
Suitable fire-prevention devices should be arranged for any eventuality.
In case of a fire, proceed as follows:
- Immediately disconnect the power plug;
- Extinguish the fire using suitable fire-extinguishers;
- Call the fire department immediately;
- Do not use jets of water to extinguish the fire.
Hydraulic diagram of pellet Boiler with DHW plate heat exchanger _07-2012
Pellet boiler
OUT
IN
KEY:
Drain cock
Pressure gauge/pressure sensor
Circulating pump
Membrane expansion tank
Shutoff valve/cock
Non-return valve
Circuit/heating chamber vent
Pressure relief valve P max 3 bar
Pressure relief valve P max 6 bar
Thermostat T>
85 °C
A - DELIVERY Heating male 1"
C - DHW DELIVERY male 1/2"
B - RETURN DHW male 1"
E - Water supply F1/2"
F - Water overpressure discharge F1/2"
Flow switch
Plate heat exchanger for DHW
Circuit balancing valves
Automatic thermostatic valve
Safety sensor T > 85 °C
Water temperature sensor
Circuit pressure sensor
Valves to be included in the system during
installation - not supplied with the unit
51
NATURFIRE 17-25 HR
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