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107157
UNVENTED NATURAL GAS FIREPLACE
®
For more information, visit www.desatech.com
ACCESSORIES
Purchase these fireplace accessories from
your local dealer. If they can not supply
these accessories, call DESA International’s
Sales Department at 1-800-672-6040 for
information. You can also write to the ad-
dress listed on the back page of this manual.
CABINET MANTEL
GMC11F Series - Walnut Finished
GMC12U Series - Unfinished
GMC13F Series - Oak Finished
with Medium Stain
GM102W Series - Off-White Paint
Shown with optional base and laminate
hearth and mantel trim accessories.
Dimensions (WxHxD): 56
3
/
4
" x 48" x 22
3
/
4
"
HARDWOOD HEARTH BASE
GC3333F Series- Walnut Finished
GC3334U Series - Unfinished
GC3335F Series - Oak Finished
with Medium Stain
G3004W Series - Off-White Paint
The hearth base can be used with the cabinet
mantels to create a handsome riser for the
fireplace (cannot be used with corner mantel).
Dimensions (WxHxD): 58" x 6
1
/
2
" x 28
9
/
16
"
SERVICE HINTS
When Gas Pressure Is Too Low
• pilot will not stay lit
• burners will have delayed ignition
• fireplace will not produce specified heat
You may feel your gas pressure is too low.
If so, contact your local natural gas supplier.
TECHNICAL
SERVICE
You may have further questions about in-
stallation, operation, or troubleshooting. If
so, contact DESA International’s Technical
Service Department at 1-800-672-6040.
You can also visit DESA International’s
technical services web site at
www.desatech.com.
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 Techni-
cal Service Department at 1-800-672-6040.
When calling DESA International, have
ready
• your name
• your 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 prod-
uct. If they can’t supply original replace-
ment part(s), call DESA International at
1-800-672-6040 for referral information.
When calling DESA International, have
ready
• model number of your fireplace
• the replacement part number
SPECIFICATIONS
Btu (Low/High) 20,000/28,000
Type Gas Natural Gas Only
Ignition Piezo
Manifold Pressure 3.4" W.C.
Inlet Gas Pressure
(in. of water)
Maximum 10.5"
Minimum 5"
Shipping Weight 100 lbs. T-stat Model
97 lbs. Manual Model
WIRING DIAGRAM
Red
Variable
Fan Switch
Fan Switch
(N.O.)
Green
White
On
110/115
V.A.C.
Blower
Motor
Black
Off
1
2
Black
Blue
CAUTION: Label all wires prior
to disconnection when servicing
controls. Wiring errors can cause
improper and dangerous opera-
tion. Verify proper operation af-
ter servicing.
Figure 37 - Blower Wiring Diagram for
Thermostat-Controlled Models