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113109-01G 29
WIRING DIAGRAM
Note: For proper operation of optional acces-
sories, the wires from the switch to the control
must be connected exactly as shown.
AUTO
OFF
ON
Thermopile
SPECIFICATIONS
• Rating: 20,000/30,000 Btu/Hr
• Gas Type: Natural Gas
• Ignition: Piezo
• Pressure Manifold: 3.5" W.C.
• Inlet Gas Pressure (in. of water):
Maximum - 10.5" W.C., Minimum* - 5" W.C.
• Shipping Weight: 122 lbs.
* For input adjustment
• Rating: 20,000/33,000 Btu/Hr
• Gas Type: Propane/LP Gas
• Ignition: Piezo
• Pressure Manifold: 8.0" W.C.
• Inlet Gas Pressure (in. of water):
Maximum - 14" W.C., Minimum* - 11" W.C.
• Shipping Weight: 122 lbs.
* For input adjustment
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 Heating, LLC at 1-866-672-6040.
When calling DESA Heating, LLC, have
ready
• your name and address
• model and serial numbers of your replace
• how replace was malfunctioning
• type of gas used (propane/LP or natural
gas)
• purchase date
Usually, we will ask you to return the 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 Heating, LLC at 1-866-672-6040
for referral information. When calling DESA
Heating, LLC, have ready
• model number of your replace
• the replacement part number
TECHNICAL SERVICE
You may have further questions about instal-
lation, operation or troubleshooting. If so, con-
tact DESA Heating, LLC at 1-866-672-6040.
When calling, please have your model and
serial numbers of your heater ready.
You can also visit DESA Heating, LLC’s web
site at .
SERVICE HINTS
When Gas Pressure Is Too Low
• pilot will not stay lit
• burner will have delayed ignition
• replace will not produce specied heat
• for propane/LP unit, propane/LP gas supply
may be low
You may feel your gas pressure is too low. If
so, contact your local gas supplier.