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Nortec WB60 - Burner Start-Up

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17
1. Switch off the electricity on the supply line.
2. Connect the cable of the lifting unit pump to suitable inlets of the burner outer part. (pic. 10,
11).
3. Connect the outer security thermostat and the heater thermostat into a gap of the power-
supply chain as it is shown on pic.10, 11.
4. Connect the grounding of the lifting unit and burner.
5. Connect the power-supply chain to the burner outer part according to the pictures 10, 11.
6. Check all the connections, tighten the locking screws and check isolation.
14. Burner start-up
Add 3-3.5 litres of fuel into the preliminary fuel heater box so the fuel fills up to ⅔ of the box.
Connect air lines of the compressor. Make sure output pressure of the compressor is at least 4
atm and the compressor capacity is enough for this burner model.
Open the compressor tap and set all the necessary values for air pressure in lines 1 and 2 (see
section 7). For consistent ignition keep the pressure in lines 1 and 2 at 0.2-0.3 MPa.
NB! In some cases when the electromagnetic valve is closed, the manometer shows
the set pressure value, but after the valve gets open, the pressure falls immediately.
Turning the regulator cap get the pressure value back with the electromagnetic valve
open.
Set the temperature in the preliminary fuel heater using thermostats 1 and 2 (6A and 6B on pic.
3) as it is shown in section 8.
Connect the outer burner part to the relevant part on the burner base.
The burner will start working according to the scheme described in section 3.
15. Regulating burner work
Due to back pressure from the combustion chamber of the boiler (heat generator) the burner
power and secondary air volume may need to be regulated.
The burner power depends on the volume of primary air, hence on pressure set on the
regulators 16(1) and 16(2) (pic. 3).
Setting the burner power at the first stage keep the consistency of ignition. Don’t increase the
value more than 0.3 MPa to avoid losing the flame.
At the second stage (for burners WB 230 and WB 270) the pressure can reach 0.4 MPa and
depends on the consistency of this burner work at full power with this boiler model.
Current burner power is defined by fuel consumption which is approximately 1 kg of fuel for 10
kW of burner power at rated operation conditions.
So, if you know the fuel consumption per hour, you can define burner power in this boiler with
this fuel.
It is impossible to define exact burner power value because of different heat capacity of fuel
types used for these burners.