Superior UNVENTED GAS LOG ROOM HEATERS VFGL-28VSP-4 SERIES - Manual (Page 6)

NOTE: DIAGRAMS & ILLUSTRATION NOT TO SCALE.
6
To avoid any movement of the heater during
operation, attach the grate to the floor of the
fireplace or firebox using the screws provided.
Slots along the back flange of the log set are
provided. After centering the grate correctly,
mark the positions of the bottom of the slots on
the fireplace/firebox floor. Drill two (2) 9/64"
diameter holes with masonry drill approximately
1/2" deep.
Preliminarily anchor the grate to the fireplace/
firebox floor with the two (2) screws provided
(
Figure 8 ). Loosen screws and proceed with
the installation.
Anchor Screw
(Both Sides)
Alternate
Location
Figure 8
Step 2. Connecting Gas Line – A qualified gas
appliance installer must connect the gas room
heater to the gas supply.
Consult all local codes.
Route gas line using techniques and materials
prescribed by local and/or national codes. Only
use pipe of
¹⁄₂" or greater diameter to allow full
gas volume to the gas fireplace. Undue pres-
sure loss will occur if the pipe is too small.
An ANSI approved manual shut-off valve and
union must be installed upstream of the heater
within the fireplace cavity when rigid pipe is
used.
Ensure that a sediment trap is installed up-
stream of the heater within the structures
piping system to prevent moisture and con-
taminants from passing through the pipe to
the heater controls and burners (
Figure 9 ).
Failure to do so could prevent the heater from
operating reliably.
IMPORTANT: HOLD HEATER REGULATOR
WITH A WRENCH TO PREVENT MOVEMENT
WHEN CONNECTING TO INLET PIPING
An external regulator must be used on all pro-
pane (L.P.G.) heaters, in addition to the regula-
tor fitted to the heater, to reduce the supply tank
pressure to 13" w.c. (maximum).
Example: The bottom of the mantel may project
from the wall a maximum of 2-1/2" at a mini-
mum of 8" above the opening. The top shelf of
the mantel may project a maximum of 6" at a
minimum of 14-1/2" above the opening.
Figure 5
Step 5. Floor clearance: If combustible floor-
ing materials, such as carpeting or asphalt tile,
are to be located within 14" of the fireplace or
firebox opening, the room heater base must be
at least 5" above the combustible flooring ma-
terial (
Figure 6 ).
Figure 6
The room heater base may be lower than 5"
above the combustible flooring materials if
the combustible flooring materials are more
than 14" from the fireplace or firebox opening
(
Figure 7 ).
Figure 7
Heat Resistant
Material
14-1/2"
18-5/8"
22-1/2"
26"
10"
2-1/2"
6"
8"
12"
8"
Min.
Hood (Canopy)
Combustible
Material
5" Min.
Combustible
Material
Combustible
Material
Can be less
than 5"
14" Min.
(Both Sides Of Opening)
INSTALLATION
WARNING: DO NOT ALLOW FANS TO
BLOW DIRECTLY INTO THE FIREPLACE.
AVOID ANY DRAFTS THAT ALTER
BURNER FLAME PATTERNS.
WARNING: DO NOT USE A BLOWER IN-
SERT, HEAT EXCHANGER INSERT OR
OTHER ACCESSORY NOT APPROVED
FOR USE WITH THIS HEATER.
This appliance must not be operated without a
fireplace screen installed. Fireplace screens
must not impair the free flow of combustion air
to the appliance.
Do not burn solid fuels in any fireplace equipped
with this listed unvented gas room heater.
WARNING: INSTALLED DECORATIVE
GLASS DOOR ENCLOSURES MUST BE
FULLY OPENED WHEN OPERATING THIS
LISTED UNVENTED GAS ROOM HEATER.
Any outside air ducts and/or ash dumps that are
part of the original solid fuel burning fireplace
system must be fully closed and sealed at the
time of installation of this listed unvented gas
room heater.
WARNING: SPECIAL CARE IS REQUIRED
IF YOU ARE INSTALLING THE UNIT INTO
A SUNKEN FIREPLACE. YOU MUST RAISE
THE FIREPLACE FLOOR TO ALLOW AC-
CESS TO GAS LOG CONTROLS. THIS WILL
INSURE ADEQUATE AIR FLOW AND
GUARD AGAINST SOOTING. RAISE THE
FIREPLACE FLOOR USING NONCOMBUS-
TIBLE MATERIALS.
A qualified gas appliance installer must install
this heater.
Check gas type: The gas supply must be the
same as stated on the heater’s rating plate. If
the gas supply is different, DO NOT INSTALL
the heater. Contact your dealer for the correct
model.
Step 1. Placement of Heater – Center the
heater in the fireplace or firebox. Make certain
the grate front feet sit inside the front edge of
the fireplace or firebox.