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13.2 Main components
13.2.1. Control system
Device
Electronic board 11 (see p. 13.1, page
27)
Electric wiring
13.2.2. Hydraulic system
Device
Heat exchanger 2
Secondary heat exchanger 3
Pump 7
Air outlet valve 8
3 wayvalve 18 with an electrical
motor 19
Expansion tank 10
13.2.3. Gas system
Device
Burner block (burner) 4
Ignition transformer 12
Ignition plug 5
13.2.4. Smoke exhausting system
Device
Fan 28
Gas removal device
13.2.5. Regulation devices
Device
Gas supply regulator 9 (see p. 13.1,
page 27)
CH temperature sensor 16
Temperature sensor of DHW supply
circuit 17
Flow sensor of DHW supply 23
Boiler operation control and providing safety in case of
emergency situations appearance
A set of wires for connecting the electronic board to the sensors,
devices and mechanisms
Heat transmission, appearing at gas combustion, to the heat
carrier
Heat transmission from the heat carrier of the heating system to
the water of DHW system
Device for creating forced heat carrier circulation
Automatic air removal from the heating system
Switching over the heat carrier flow from the primary heat
exchanger between the heating and DHW systems
Compensation of the heat carriers expansion due to heating
Mixing air with gas and providing equable combustion of the
gas and air mixture in the combustion chamber
камере сгорания
Forming the electric spark on the ignition plug
Forming the electric spark for igniting gas and air mixture on the
burner
Forced combustion products exhaustion
Atmospheric combustion products exhaustion
On gas
Regulating gas supply to the burner block
On the heat carrier
Changing the heat carrier temperature.
The signal from the sensor is used for maintaining the set heat
carrier temperature in the CH
On water
Measuring water temperature in the DHW supply circuit.
The signal from the sensor is used for maintaining the set
temperature in the DHW supply circuit
Defining water flow in the DHW supply circuit.
The signal from the sensor is used for rendering the boiler to the
DHW supply mode at hot water tap opening
28
Purpose
Technical staff manual
Purpose
Purpose
Purpose
Purpose
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