Laars MASCOT FT MFTCW Installation And Operation Instructions Manual page 69

Mascot FT Combination Boiler
SECTION 8. Maintenance
- Check the air vent
If the air vent valve seems to work freely without
leaking, replace cap "A" by twisting all the way on.
Loosen cap "A" one turn to allow vent to operate.
If vent does not operate correctly, replace the vent.
A
A
Maintenance procedures [Every 6 Months]
- Check the boiler piping (gas and water)
Visually inspect for leaks around internal water
piping. Also inspect external water piping,
circulators, relief valve and fittings. Immediately
call a qualified service technician to repair any
leaks. Leaks must be fixed by a qualified service
technician immediately.
Failure to comply with this instruction could result in
severe personal injury, death or substantial property
damage.
- Check the pressure relief valve
WARNING
Leaks must be fixed by a qualified service technician
immediately. Failure to comply with this instruction
could result in severe personal injury, death or sub-
stantial property damage. This discharge line must
be installed by a qualified heating
installer or a service technician.
Before proceeding, verify that relief valve outlet has
been piped to a safe place of discharge, avoiding
any possibility of scalding from hot water. If water
flows freely, release the lever and allow the valve
to seat. Watch the end of the relief valve discharge
pipe to ensure that the valve does not weep after
the line has had time to drain. If the valve weeps,
lift the seat again to attempt to clean the valve
8.1 Annual startup & general maintenance
seat. If the valve continues to weep, contact your
qualified service technician for inspecting the valve
and system. If water does not flow from the valve
even though you have lifted the lever completely, the
valve or discharge line may be blocked. Shut down
the Combination boiler immediately. Call your qualified
service technician to inspect the combination boiler
and system.
- Check the burner state
You can clean the exterior of burner. However, if you
need to clean the inside of the burner stage, you should
call a qualified service technician.
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