Field Service Bulletin for Model VGC18NR
This bulletin is for log heater model VGC18NR when installed in a V32 series or an FB32 series vent free rebox.
These models were produced with a straight injector installed in rear burner. Log set may not t properly into
these reboxes due to rear injector and ex line hitting back of rebox. The serial numbers of heaters affected
are: WH060637S to WH0606389, WH06019PA to WH06040K9 and WH06019LR to WH06040J0
An elbow injector, 111819-20, is available for use in place of the straight injector. This will allow the log set to t
properly into the 32" rebox. Follow these instructions to replace injector.
WARNING: All service must be performed
by a qualied service person. Follow all lo-
cal codes.
WARNING: If heater is already installed,
turn off heater and let cool before handling.
Make sure gas is turned off to unit.
CAUTION: Do not pick up heater base as-
sembly by burners. This could damage heater.
Only handle base assembly by grates.
1. Carefully remove logs from log base.
2. Remove log base from rebox. Be careful not to
damage gas line.
3. Using a 5/8" open end wrench and an 11/16" open
end wrench, disconnect compression nut and re-
move ex tube from injector.
4. Remove injector from air shutter (see Figure 1).
5. Inspect shutter to make sure it is not bent. If the
shutter is bent, see owner's manual for specic part
number and details to order shutter.
Straight
Injector
Air Shutter
Figure 1 - Straight Injector Installed
Compression
Nut
Flex
Tubing
6. Install elbow injector to rear of burner. Tighten nger
tight and rotate back until injector is pointing down
to receive ex line (see Figure 2).
7. Bend ex tubing up to t onto injector.
8. Tighten compression nut onto orice injector using
a 5/8" open end wrench. See CAUTION statement
below.
CAUTION: Hold injector with 1/2" open
end or adjustable wrench while tightening
compression nut. Air shutter may bend if
injector is not held in place while tightening
compression nut.
WARNING: Test all gas piping and connec-
tions, internal and external to unit, for leaks
after installing or servicing. Correct all leaks
at once. See Checking Gas Connections in
owner's manual.
9. Carefully replace log base in rebox.
10. Replace logs, embers and lava rock (see Installing
Logs, Embers and Lava Rock in owner's manual.
Elbow
Injector
Air Shutter
Figure 2 - Elbow Injector Installed
Compression
Nut
Flex
Tubing
120104-01
Rev. A
08/06
2701 Industrial Drive
Bowling Green, KY 42101
www.desatech.com
NOT A UPC
120104 01
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.
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