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108382-01D
21
21
For more information, visit www.desatech.com
For more information, visit www.desatech.com
SPECIFICATIONS
Natural Gas Propane/LP
Btu (Variable) 20,000/39,000 20,000/39,000
Type Gas Natural Gas Only Propane/LP Only
Ignition Piezo Piezo
Pressure Manifold 3.5" W.C. 8.0" W.C.
Inlet Gas Pressure (in. of water)
Maximum 10.5" 14"
Minimum* 5" 11"
Shipping Weight 32 lbs. 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
You may feel your gas pressure is too low. If so, contact your local
natural or propane/LP gas supplier.
TECHNICAL SERVICE
You may have further questions about installation, operation, or
troubleshooting. If so, contact DESA International’s Technical
Service Department at 1-866-672-6040. When calling please have
your model and serial numbers of your heater ready.
You can also visit DESA International’s technical services web site
at www.desatech.com.
WIRING DIAGRAM
Note:
For proper operation of optional accessories, the wires from
the switch to the control must be connected exactly as shown.
A
U
T
O
O
F
F
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 Technical
Service Department at 1-866-672-6040. When calling DESA Inter-
national, have ready
• your name and address
• model and serial numbers of your heater
• how heater 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 International at 1-866-672-6040 for
referral information. When calling DESA International, have ready
• model number of your heater
• the replacement part number
WIRING DIAGRAM
SPECIFICATIONS
SERVICE HINTS
TECHNICAL SERVICE
REPLACEMENT PARTS