8
SERVICING
29
Note: Servicing must be carried out by a
OFTEC qualified engineer. (U.K. Only)
8-A Recommended Service Intervals
28 second oil Once annually
35 second oil Once annually
Ensure that 35 secs fuel oil is only used where allowed by regulations.
Burner should then be re-set for this fuel. Before carrying out a service
it is recommended that the following
is checked:
A). Smoke
B). CO
2
C). The flue gas temperature
D). Oil pressure
E). Ensure flue is unrestricted & operating properly
At the same time check for oil and combustion leaks. Advance to service
ONLY after ensuring that both electric and oil supply to boiler is
disconnected.
8-B The Oil Tank
Draw off any accumulated water and sludge from the tank by opening the
drain cock. Turn off the oil supply and remove the filter bowl, then wash the
element clean with kerosene.
8-C The Boiler
Remove combustion access door for access to baffles and to
clean heat exchanger.
Check insulation sealing and its silver foil lining in combustion access door -
replacing when necessary. When refitting this door be careful not to dam-
age the foil and insulation by over tightening.
8-D The Burner
Check performance of oil-nozzle and replace as necessary.
Ensure correct specification replacement nozzle is used.
Check all oil filters and replace as necessary.
Remove burner and clean blast tube and ensure that airways are clear.
Ensure electrodes are clean, dry, not broken and are set as per burner speci-
fications.
Clean fan and photocell.
Once again check flexible oil lines and connections for damage or
leaks, replace as necessary.
Combustion Check
Carry out combustion analysis and ensure that boiler is performing to speci-
fication outlined in manual. Flue conditions may cause deviation from these
figures.
Always keep careful record of flue gas analysis results
including any verbal and written advice to customer (householder).
Always check carefully for restricted or blocked flue. If possible record
CO levels and advise customer of need to keep boiler room well
ventilated.
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