Cassette Player User Manual
SECTION 11: OPERATION AND MAINTENANCE 
57 of 71
service or maintenance. Allow heater to cool before 
servicing.
Before every heating season, a contractor qualified in 
the installation and service of gas-fired heating 
equipment must perform a thorough safety 
inspection of the heater.
For best performance, the gas, electrical, thermostat 
connections, tubing, venting, suspensions and 
overall heater condition should be thoroughly 
inspected.
NOTE: Gas flow and burner ignition are among the 
first things that should be inspected.
Please See Page 57 for suggested items to inspect.
Installation Code and Annual Inspections: 
All installation and service of ROBERTS GORDON
®
equipment must be performed by a contractor 
qualified in the installation and service of equipment 
sold and supplied by Roberts-Gordon LLC and 
conform to all requirements set forth in the 
ROBERTS GORDON
®
 manuals and all applicable 
governmental authorities pertaining to the 
installation, service, operation and labeling of the 
equipment.
To help facilitate optimum performance and safety, 
Roberts-Gordon LLC recommends that a qualified 
contractor conduct, at a minimum, annual 
inspections of your ROBERTS GORDON
®
 equipment 
and perform service where necessary, using only 
replacement parts sold and supplied by Roberts-
Gordon LLC.
The Vicinity of the Heater Do not store or use flammable objects, liquids or vapors near the heater. 
Immediately remove these items if they are present.
See Page 5, Section 3.
Vehicles and Other 
Objects
Maintain the clearances to combustibles.
Do not hang anything from, or place anything on, the heater.
Make sure nothing is lodged underneath the reflector, in between the tubes or 
in the decorative or protective grilles (included with select models).
Immediately remove objects in violation of the clearances to combustibles.
See Page 5, Section 3.
Reflector Support reflector with reflector hanger and support strap.
Reflector must not touch tube.
Make sure there is no dirt, sagging, cracking or distortion.
Do not operate if there is sagging, cracking or distortion.
Make sure reflectors are correctly overlapped. See Page 20, Section 6.5.1.
Clean outside surface with a damp cloth.
Vent Pipe Venting must be intact. Using a flashlight, look for obstructions, cracks on the 
pipe, gaps in the sealed areas or corrosion.
The area must be free of dirt and d
ust. Clean as required.
Remove any carbon deposits or scale using a wire brush.
See Page 31, Section 8.
Outside Air Inlet 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.
Tubes Make sure there are no cracks.
Make sure tubes are connected and suspended securely.
See Page 12, Section 6.
Make sure there is no sagging, bending or distortion.
Clean or replace as required.










