Form 43343530
-44-
Aug 2012
21.0)
CLEANING AND ANNUAL MAINTENANCE
Failure to do so may result in death or serious injury.
Disconnect electrical power and gas supply before
servicing.
ELECTRIC SHOCK & EXPLOSION HAZARD
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.
The contractor shall check the following during periodic maintenance.
•
•
•
•
Clearances to combustible
Clearances to combustible
Clearances to combustible
Clearances to combustibles:
s:
s:
s: Check that clearances are being maintained. Make sure there are no
flammable objects, liquids or vapors near the heater. See also Section 4.0).
•
•
•
•
Reflectors:
Reflectors:
Reflectors:
Reflectors: Reflectors should be kept clean, at a minimum blow off the reflectors. (Dirty reflectors will
reduce heat output).
•
•
•
•
Heat exchanger tubes:
Heat exchanger tubes:
Heat exchanger tubes:
Heat exchanger tubes: Inspect the heat exchanger tubes to make sure they are not cracked, sagging or
showing signs of fatigue.
•
•
•
•
Combustion air intake:
Combustion air intake:
Combustion air intake:
Combustion air intake: Disconnect combustion air intake from the burner box and inspect internally using a
flashlight to make sure no foreign material has collected in the tubes and that there is no obstruction
around the air intake openings. Clean any foreign materials. Inspect any joints to make sure they are
completely sealed. See also Section 17.0).
•
•
•
•
Venting System:
Venting System:
Venting System:
Venting System: Disconnect vent pipe and inspect internally using a flashlight to make sure no foreign
material has collected in the pipes. Check the external vent cap and make sure that there is no obstruction
around the exhaust openings. Clean any foreign materials. Inspect any joints to make sure they are
completely sealed. See also Section 16.0).
•
•
•
•
Gas lines:
Gas lines:
Gas lines:
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 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 13.0).
•
•
•
•
Burner Box:
Burner Box:
Burner Box:
Burner Box: In order to extend the longevity of the heater, the heat exchanger tube and the burner must be
level. Check that the burner box is level; use the turnbuckle on the burner suspension eyebolt to adjust the
level of the burner. See also Section 9.0).
•
•
•
•
Burner sight glass:
Burner sight glass:
Burner sight glass:
Burner sight glass: Check that the burner sight glass is clean and that the glass is sealed against the housing
door. If there any signs of distortion, the sight glass must be replaced. See Section 20.0) for sight glass
location.
•
•
•
•
Blower wheel and housing:
Blower wheel and housing:
Blower wheel and housing:
Blower wheel and housing: Check that the blower wheel spins freely, blow out any dust or dirt with
compressed air. See Section 20.0) for blower location.
•
•
•
•
Electrode condition:
Electrode condition:
Electrode condition:
Electrode condition: Visually check that the electrode gap is maintained at 1/8” 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 23.1).
•
•
•
•
Suspension system:
Suspension system:
Suspension system:
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.
•
•
•
•
Tube Integrity Safety System:
Tube Integrity Safety System:
Tube Integrity Safety System:
Tube Integrity Safety System: Check that the tension of the tube integrity safety system is maintained at 11”.
Adjust tension if necessary. See Section 12.2).
•
•
•
•
Main
Main
Main
Main Burner and Orifice:
Burner and Orifice:
Burner and Orifice:
Burner and Orifice: Check the Main burner and orifice; remove any dirt or debris including spider webs.
See Section 23.1).
