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This heater must be cleaned and serviced annually by a qualified contractor before the start of each heating season
and at any time excessive accumulation of dust and dirt is observed. Maximum heating efficiency and clean
combustion will be maintained by keeping the heater clean. Detailed instructions for component removal are given
in Section 21.0) Replacing Parts. Consult manufacturer when parts need replacement that are not listed.
After any maintenance and/or replacement of components the heater must be re-commissioned to ensure proper
operation. After working on gas carrying components the appliance must be checked for gas leaks and pressure
settings verified.
The contractor shall check the following during periodic maintenance.
Clearances to combustibles: Check that clearances are being maintained. Make sure there are no flammable
objects, liquids or vapors near the heater. See also Section 4.0). Ensure heater mounting angle and heat shield
installation position correspond to each other. See also Sections 12.1).
If the heater was installed using the outdoor ventilation requirements: Check that the area has not been closed
in making it an Indoor installation. If any changes have been made then the ventilation requirements for Indoor
installations apply.
Heat Shield: The Heat Shield must be kept clean, at a minimum blow off the Heat Shield and wipe down with a
damp cloth. Ensure Heat Shield is properly attached to heater. See Section 13.0). Review that the heat shield
installation location matches the heater mounting angle.
Heater ventilation openings: Make sure no foreign material has collected inside the heater through the
ventilation openings. Remove any foreign materials.
Venting System: Ensure heater has adequate ventilation. See also Section 17.0).
Gas lines: Make sure that the gas lines are not leaking. Check the gas connection to the heater for any signs of
damage, fatigue or corrosion. If there are any signs of damage to the gas connection or leaks found in the gas
piping, immediately stop using the heater and turn off the gas until the gas pipe and connections have been
repaired or replaced. Check that the gas lines are not bearing the weight of the heater. See also Section 15.0)
Heater: In order to extend the longevity of the heater it must be suspended level. See also Section 12.0).
Heater mounting angle and heat shield: Ensure the heat shield position matches the heater mounting angle.
See also Section 13.0).
Electrode condition: Visually check that the electrode gap is maintained at 5mm (0.199") and that the tips of
the flame sensor and spark electrode are free from deposits. Clean off any deposits. Check that the electrode
ceramic is free from cracks. See Section 21.2)
Suspension system: Check that the suspension system is holding the heater level. Make sure that the heater is
hanging securely, look for any evidence where the heater may have been hit accidentally and tighten any loose
hanging points. Check that S hooks are closed. Check that there is no evidence of wear on the chain at the
connection to the heater and at the ceiling.
Form 44201360
Oct 2019
37
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