Mendota MEDALLION, Installation & Operating Instructions Manual

 CUSTOMER INFORMATION AND TROUBLE-SHOOTING 

MAXIMUM ALLOWABLE SURFACE TEMPERATURE

Mendota Inserts/Fireplaces comply with UL Standards for maximum surface temperatures on exposed 
combustible surfaces adjacent to the Insert.  The Maximum allowable surface temperature is 117° F. over 
ambient (room) temperature.  Thus, if a room is 70° – 80°, the exposed combustible surfaces immediately 
surrounding the Insert can have a surface temperature as high as 187° F. – 200° F. (too hot to touch). 

 
OVER FIRING/UNDER FIRING OF BURNER 

NEVER "over fire" units by adjusting gas pressure to increase BTUH above nameplate specifications.  
Over firing can cause permanent damage to firebox and deterioration of parts and void warranty. 
NEVER "reduce" main burner or pilot flames below required millivolts). 
 

PILOT OUTAGE AND RE-LIGHTING -- MAINTAINING CORRECT PILOT FLAME 

If pilot flame goes out always wait a minimum of five minutes before re-lighting.  Always remove the glass 
when lightly the pilot.  The pilot flame must be checked with a millivolt meter and must always be a 
minimum of 250 millivolts (See Pg. 27). 
 

CLEANING VIEWING GLASS

The viewing glass should be cleaned periodically.  Exterior glass may be cleaned with cleaner as desired.  
Interior glass - use soap and water.  NEVER USE ABRASIVE CLEANERS, NEVER CLEAN GLASS 
WHILE OPERATING, OR WHEN GLASS IS HOT. 
 

NOTE

:  Additives that are put in gas (both natural and propane) to make it smell can be harmful to glass 

and can leave a white film deposit on the glass.  This deposit can be removed with cleaners such as KEL 
KEM “Polish Plus” (See your dealer). 
 
In some cases (especially propane) additives can cause “crazing” or etching on the glass.  Although this is 
not normal, it is not covered under the warranty.  The solution may be to change propane suppliers. 
 
Sooting is caused by improper installation or operation.  At the first sign of "sooting" (usually a thin black 
film on the Fireplace viewing glass or on the outside of the home around the vent cap) the unit must be 
immediately turned off and the local Mendota dealer promptly informed.  Mendota products are designed 
and tested to operate without producing any "sooting" when installed and operated correctly.  Mendota 
dealers will correct "sooting" problems, but Mendota and their dealers are not responsible for damage 
caused by excessive sooting that has not been immediately brought to their attention. 

 
AGA/ANSI APPROVAL 

Gas appliances must be tested and certified by a nationally recognized testing and certification laboratory 
to ANSI [American National Standards Institute] gas appliance safety standards. 
 
The Mendota Gas Fireplace Insert has been tested and certified by Intertek Testing Services.  8431 Murphy 
Drive,  Middleton, Wisconsin 53562. 
The Mendota Gas Fireplace Inserts have met all necessary AGA/ANSI Standards and are fully certified for 
installation in any community.   
 
 

BLOWER WIRING DIAGRAM 

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