11
138727_Rev_F 8/9/11
WARNING:
FAILURE TO POSITION THE PARTS IN ACCOR-
DANCE WITH THIS DIAGRAM OR FAILURE TO USE
ONLY PARTS SPECIFICALLY APPROVED WITH THIS
APPLIANCE MAY RESULT IN PROPERTY DAMAGE
OR PERSONAL INJURY.
Listed Direct Vent
Termination Cap
If the flex pipe coes not
connect directly to a Direct
Vent Termination at the
top of the chimney, the
flue must be permanently
sealed-off from the living
area.
Maintain proper
clearance to Mantel
and Trim
Sealed Chimney
Cap Anchor Plate
Listed Flexible
Gas Liners
Max. Height 35 ft.
Min. Height 10 ft.
AI
R I
NT
AKE FLE
X PI
PE
EX
HA
US
T FLE
X PI
PE
To Air Intake
Collar -
left side
To Exhaust
Collar -
right side
Figure 6. Masonry Fireplace Venting Configuration.
Attach Fireplace
Conversion Notice
Plate to Rear Wall
of Fireplace if the
damper has been
modified.
Prefabricated Fireplaces
A prefabricated fireplace chimney must be clean
and in good working order. It must be constructed of
noncombustible materials. Chimney clean-outs must
fit properly.
A factory-built prefabricated fireplace will require a
few modifications before installation of the fireplace
insert.
Modification Steps:
1. Remove any fuel grate or other components at-
tached to the firebox. On most models the fire
grate is attached to the unit with brackets which
should be cut or pried off.
2. Remove the damper assembly. This includes the
damper blade, handle and any linkage.
Two 3” liners must be able to pass through the
damper area.
3. Remove any fire screen or door assembly. This is
usually done by removing a support rod on the
inside of the fireplace frame. Smoke shelves,
shields, and baffles can be removed if attached
with mechanical fasteners.
4. If there is a metal ash lip, it too should be re-
moved to allow the unit to sit flat in the fireplace.
Be sure to reinstall any screws removed.
IMPORTANT:
BEFORE STARTING THIS INSTALLATION, MAKE SURE
THAT A GAS LINE CAN BE INSTALLED OR IS INSTALLED
TO THE FIREBOX. THIS SHOULD ONLY BE DONE BY A
QUALIFIED OR LICENSED PLUMBER OR GAS FITTER.
The GI 550 DV gas insert is specifically designed
to be vented using a co-linear system.
Installation includes a pair of 3” flex ducts that
run from the insert completely through the existing
chimney to the termination cap. See figure 7, page
12.
One liner is attached to the exhaust port on the
back of the unit and will carry the exhaust gases to
the outside of the house. This exhaust liner must be
directly connected to the unit and run the full length
of the chimney.
IMPORTANT NOTICE:
THE USE OF AN EXISTING CHIMNEY AS AN AIR
INTAKE IS NOT COVERED UNDER THE ANSI
Z21.88-1999-CSA 2.33-M99 TEST METHODS AND
RESULTING ITS/WHI PRODUCT CERTIFICATION.
THE CODE AUTHORITY HAVING JURISDICTION
MUST BE CONSULTED PRIOR TO PROCEEDING
WITH THIS INSTALLATION METHOD.
