Desa CFS18NRA - Manual (Page 24)

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UNVENTED NATURAL GAS LOG HEATER
DESA INTERNATIONAL
WIRING DIAGRAM
AUT
O
OFF
ON
Thermopile
SPECIFICATIONS
18" Variable 24" Variable 30" Variable
Btu (Variable) 16,000/26,000 20,000/33,000 21,500/36,000
Type Gas Natural Gas Only Natural Gas Only Natural Gas Only
Ignition Piezo Piezo Piezo
Manifold Pressure 3.4" W.C. 3.4" W.C. 3.4" W.C.
Inlet Gas Pressure (in. of water)
Maximum 10.5" 10.5" 10.5"
Minimum* 5" 5" 5"
Shipping Weight 32 lbs. 34 lbs. 36 lbs.
* For purpose of input adjustment
TECHNICAL
SERVICE
You may have further questions about in-
stallation, operation, or troubleshooting. If
so, contact DESA International’s Technical
Service Department at 1-800-DESA LOG
(1-800-337-2564).
You can also visit DESA International’s
Technical Services web site at
www.desatech.com.
SERVICE HINTS
When Gas Pressure Is Too Low
• pilot will not stay lit
• burners will have delayed ignition
• heater will not produce specified heat
When Gas Quality Is Bad
• pilot will not stay lit
• burners will produce flames and soot
• heater will backfire when lit
You may feel your gas pressure is too low or
gas quality is bad. If so, contact your local
natural gas supplier.