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Yearly maintenance program
Year 1
Year 2
Year 3
Year 4
Year 5
Year 6
Year 7
Year 8 Year 9 Year 10
Maintenance date
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Disconnect power supply and protect the PC board to ensure it
cannot get wet during service
Using a digital manometer, check incoming gas pressure at the
gas regulator
Using a digital manometer, check pressure at bottom of gas valve
Check gas line size & length, ensuring it is adequately sized
Isolate & drain the boiler, check the expansion tank pressure is
correct for the system
Check that area is free from combustible materials, gasoline, and
other flammable vapors and liquids
Check that the Pressure Relief Valve is properly oriented in a vertical
position beneath the boiler
Check the correct working of the relief valve. Refer to manufacturer’s
instructions on valve
Check the water domestic inlet screen, clean if necessary (KIS
model only)
Check the water inlet filter screen in the inlet manifold, clean if
necessary
Check the Central Heating return filter screen, clean if necessary
Check venting type, length, installation, condition & screens
Visually check top of vent for soot. Call service person to clean.
Some sediment at bottom of vent is normal
Clean the screens in the vent terminal
Visually inspect all flue product carrying areas of the boiler
including the venting system and main burner for proper
functioning, deterioration or leakage
Verify that the vent is not obstructed. Check for and remove any
obstruction to the flow of combustion or ventilation air to heater
Venting must be pitched towards the boiler to allow condensate
to drain
Ensure that condensate drains are inspected and ensure
that condensate is being directed to appropriate condensate
management system or drain, as required by local codes
Check operation of safety devices. Refer to manufacturer’s
instructions
Check fan and fan motor
Check if there is any flue leakage from the heat exchanger flue
outlet and adaptors junctions. In case of leakage detection replace
the related gaskets (1).
Remove the burner door (8), check that combustion chamber is
free of deposits and proceed to clean.
Check the burner door insulation panel (6), gasket (4) and high
temperature glass braided rope (5) for deterioration, and if they
are worn, replace them.
Summary of Contents for Family PRO 42 IS
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