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104675
UNVENTED PROPANE/LP GAS LOG HEATER
VANGUARD FLAME-MAX
®
SPECIFICATIONS
27" Remote Ready
Btu (Variable) 20,000/39,000
Type Gas Propane Only
Ignition Piezo
Pressure Manifold 8.0" W.C.
Inlet Gas Pressure (in. of water)
Maximum 14"
Minimum* 11"
Shipping Weight 32 lbs.
* For input adjustment
SERVICE HINTS
When Gas Pressure Is Too Low
• pilot will not stay lit
• burners will have delayed ignition
• heater will not produce specified heat
• propane/LP gas supply may be low
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
propane/LP gas supplier.
TECHNICAL
SERVICE
You may have further questions about in-
stallation, operation, or troubleshooting.
If so, contact DESA International’s Techni-
cal 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.
WIRING DIAGRAM
Note:
For proper operation of optional ac-
cessories, the wires from the switch to the
control must be connected exactly as shown.
AUTO
OFF
ON
Thermopile
REPLACEMENT
PARTS
Note:
Use only original replacement parts.
This will protect your warranty coverage for
parts replaced under warranty.
PARTS UNDER WARRANTY
Contact authorized dealers of this product.
If they can’t supply original replacement
part(s), call DESA International’s Techni-
cal Service Department at 1-800-323-5190.
When calling DESA International, have
ready
• your name and address
• model number of your heater
• how heater was malfunctioning
• type of gas used (propane or natural gas)
• purchase date
Usually, we will ask you to return the defec-
tive part to the factory.
PARTS NOT UNDER
WARRANTY
Contact authorized dealers of this product.
If they can’t supply original replacement
part(s), call DESA International’s Parts
Department at 1-800-972-7879 for referral
information. When calling DESA Interna-
tional, have ready
• model number of your heater
• the replacement part number