8
Initial start-up, inspection and maintenance
Further details regarding the individual steps (cont.)
To obtain the optimum combustion values, it is essential to adjust the burner
with the boiler heated to operating temperature (min. 60ĂºC).
Also carry out measurements at base load.
System start-up
Service instructions
Boiler control unit.
1. Check the heating system
pressure.
2. Open the gas shut-off valve.
3. Check the supply pressure (see
page 11).
4. Switch ON the mains electrical
isolator (outside the boiler room).
5. Switch ON system ON/OFF
switchĂB on the control unit.
If fault indicator lampĂA on the
control unit lights up, press reset
buttonĂC on the burner control
unit.
Please note:
Function sequence during initial
start-up, see pages 25 and 37.
During the initial start-up, the
equipment can enter a fault state if it
has insufficient gas in the supply line
(fault lamp on the control unit
illuminates).
Ventilate the gas supply line again
and reset the burner control unit.
5692Ă534ĂGB
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