32
clean heat technology
8-1.5 The Burner
Check that the Burner pump is correctly set for 1 or 2 pipe oil supply. See Section 6 of
this manual.
Check that the correct nozzle is fitted with the correct pump pressure for the output
required, see Section 11.
Check available air to the Boiler room for combustion and ventilation.
8-1.6 Conventional Flue and Chimney
Refer to separate instructions supplied with flue.
8-1.7 Balanced Flues
Check balanced flues for positioning and that the installation complies with details in this
manual.
Check that the flexible air duct is correctly fitted from the condensing unit to the burner.
Check that the test point bolt is fitted in the adaptor.
8-1.8 Electrical
Check that the wiring circuit is correctly fused and giving the appropriate supply to the
burner.
Check lockout function of the control box by removing the photoresistor from the burner
and obscuring light from it.
Check the operation of the limit stat or temperature limiter by temporarily removing the
phial of the control stat from its pocket.
COMMISSIONING 8
COMMISSIONING 8
COMMISSIONING 8
COMMISSIONING 8
COMMISSIONING 8
8-2
Extra Procedures for System Boilers
8-2.1 Expansion Vessel Pressure
Check that the expansion vessel is adequate for the system as follows:-
Operate the system at normal temperature (80°C) with all radiators on and hot water on.
The system pressure will rise above the cold fill pressure.
If the pressure rises more than 0.5 bar then an additional expansion vessel will be
required. Part IBS7074 Part 1 includes information on additional expansion vessel
requirements.
8-2.2 Check Pressure Relief Valve
To check operation of the pressure relief valve, temporarily increase the system pressure.
The valve should operate when the pressure increases to 3 bar ± 10%.
Reduce the pressure on completion by manually operating the pressure relief valve.
Record Cold Fill Pressure
✍
0
1
2
3
4
5
6
0
20
40
60
80
bar
psi
88888