SECTION 13: S
ERVICING
39 of 59
Cabinet Exterior
After installation, touch up scratches. Periodic paintings should be done
thereafter as required. Warning labels and logo labels should be legible and
accurate. Please contact Rapid Engineering LLC or RAPID
®
independent dis-
tributor if you need replacement warning labels or logo labels.
See Page 2, Figure 1 through Page 3, Figure 2.
Combustion Air Intake
Pipe
Intake pipe and inlet must be intact. Look for obstructions, cracks on the pipe,
gaps in the sealed areas or corrosion.
The area must be free of dirt and dust.
Clean and reinstall as required.
Heat Exchanger
Make sure there are no cracks.
Make sure there is no sagging, bending or distortion.
Clean or replace as required.
Gas Line and Shut-off
Valves
Check for gas leaks.
Burner Observation
Window
Make sure it is clean and free of cracks or holes.
Clean and replace as required.
Flue Blower Scroll, Wheel
and Motor
Compressed air or a vacuum cleaner may be used to clean dust and dirt.
Inshot Burners and
Orifices
Clear of obstructions (even spider webs will cause problems).
Carefully remove any dust and debris from the burner.
Direct-Spark Igniter
Replace if there are cracked ceramics, excessive carbon residue, or erosion
of the electrode.
The electrode gap should be 1/8" (3.2 mm).
Thermostat
There should be no exposed wire or damage to the device or wiring.
Suspension Points
Make sure the heater is hanging securely.
Look for signs of wear on the suspension materials or ceiling.
Silicone Tubing
Ensure tight, secure fit on all pressure fittings at pressure switch and vent box.
Gas Valve
Verify that cap covering pressure regulator adjustment screw is secure and
has not been tampered with.
Verify all wiring connections.
Condensate Drain
(when installed)
Flush drain and clear any obstructions.
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