Service manual

CTH2-SERIES INSTALLATION, OPERATION AND SERVICE MANUAL
44
Tubes Make sure there are no cracks.
Make sure tubes are connected and suspended securely.
See Page 11, Section 6.
Make sure there is no sagging, bending or distortion.
Clean or replace as required.
Gas Line Check for gas leaks. See Page 38, Section 9.
Burner Observation
Window
Make sure it is clean and free of cracks or holes.
Clean and replace as required.
Blower Scroll, Wheel and
Motor
Compressed air or a vacuum cleaner may be used to clean dust and dirt.
Burner Cup and Orifice Clear of obstructions (even spider webs will cause problems).
Carefully remove any dust and debris from the burner.
Hot-Surface Igniter Replace if cracked or broken.
Thermostat There should be no exposed wire or damage to the thermostat.
See Page 39, Section 10.
Suspension Points Make sure the heater is hanging securely. Look for signs of wear on the chain
or ceiling.
See Page 11, Figure 12.
Decorative and Protective
Grille (optional)
The grille must be securely attached.
Check that the side reflector extensions are installed correctly and secured in
place if necessary. (Decorative grille only.)
See Page 27, Section 7.5 and Page 31, Section 7.7.
Make sure shield is installed correctly and secured in place if necessary.
(Decorative grille only.) See Page 28, Section 7.5.2.
Lower Clearance Shield
(optional)
The lower shield must be securely attached. Inspect shield support straps
and lower clearance shield anchor points.
See Page 27, Section 7.4.
Make sure shield is installed correctly and secured in place if necessary.
See Page 27, Section 7.4.