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111640-01B
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For more information, visit www.desatech.com
For more information, visit www.desatech.com
TECHNICAL SERVICE
You may have further questions about installation, operation, or
troubleshooting. If so, contact DESA Heating Products’ 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 Heating Products’ technical service 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
• propane/LP gas supply may be low
You may feel your gas pressure is too low. If so, contact your local
propane/LP gas supplier.
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 Products’ Techni-
cal Service Department at 1-866-672-6040.
When calling DESA Heating Products, have ready
• your name
• your 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), either contact your nearest Parts Cen-
tral (see page 26) or call DESA Heating Products at 1-866-672-6040
for referral information.
When calling DESA Heating Products, have ready
• model number of your heater
• the replacement part number
SPECIFICATIONS
VGL24PR VGL24NR
Btu (Variable) 21,000/30,000 21,000/30,000
Type Gas Propane/LP Only Natural Gas Only
Ignition Electronic Electronic
Manifold Pressure 8.0" W.C. 3.5" W.C.
Inlet Gas Pressure (in. of water)
Maximum 14" 10.5"
Minimum* 11" 5"
* For the purpose of input adjustment
WIRING DIAGRAM
SPECIFICATIONS
SERVICE HINTS
TECHNICAL SERVICE
REPLACEMENT PARTS
WIRING DIAGRAM
Receiver
Black
On
Off
Remote
Red
Red
White
Thermopile
Gas Control
TPTH TH
TPTH
TP