BaltGaz BaltGaz NEVALUX-8224, User Manual, Page: 24 / 56

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