Wiring Diagram; Specifications; Replacement Parts; Technical Service - Desa GA3700 Owner's Operation And Installation Manual

Note: For proper operation of optional acces-
sories, the wires from the switch to the control
must be connected exactly as shown.
VYGF33NRC
• 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

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 fireplace
• how fireplace 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 fireplace
• the replacement part number
113109-01G

WIRING DIAGRAM

SPECIFICATIONS

VYGF33PRC
• 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):
• Shipping Weight: 122 lbs.
* For input adjustment
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 www.desatech.com.
When Gas pressure Is Too Low
• pilot will not stay lit
• burner will have delayed ignition
• fireplace will not produce specified heat
• for propane/LP unit, propane/LP gas supply
You may feel your gas pressure is too low. If
so, contact your local gas supplier.
www.desatech.com
Maximum - 14" W.C., Minimum* - 11" W.C.

TEChNICAL SERVICE

SERVICE hINTS

may be low
Thermopile
29