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NOTE: DIAGRAMS & ILLUSTRATION NOT TO SCALE.

6

Figure 9

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).

WARNING: CONNECTING DIRECTLY TO
AN UNREGULATED PROPANE TANK MAY
CAUSE AN EXPLOSION.

The heater gas inlet connection is 

³⁄₈

" NPT at the

regulator, located on the right side facing the
heater. If a left side connection is required, the
connection pipe may be piped under the rear of
the appliance to end at the left hand side for
connection to the inlet.

When tightening up the joint to the regulator
hold the regulator securely with a wrench to
prevent the regulator from moving.

Checking Gas Connections: Test all gas joints
from the gas meter to the gas fireplace regula-
tor for leaks using soap and water solution after
completing connection. DO NOT USE AN OPEN
FLAME.

A. Mix a 50% dish soap, 50% water solution.

B. Light the appliance (see safety and lighting
instructions on pages 12 and 14).

C. Brush all joints and connections with the
soapy water solution to check for leaks. If
bubbles are formed, or gas odor is detected,
turn the gas control knob to the “OFF” position.
Either tighten or refasten the leaking connec-
tion and retest as described above.

D. When the gas lines are tested and leak free,
observe the individual tongues of flame on the
burner. Make sure all ports are open and pro-
ducing flame evenly across the burner. If any
ports are blocked, or partially blocked, clean
out the ports.

Union

Regulator

Fireplace or

Firebox Wall

Wall

Shut-Off

Key

3"

Manual

Shut-Off

Valve

Fireplace or

Firebox Wall

Sediment

Trap

Down

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.

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.

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 pip-
ing system to prevent moisture and contami-
nants from passing through the pipe to the
heater controls and burners (

Figure 9 ). Failure

to do so could prevent the heater from operat-
ing reliably.

IMPORTANT: HOLD HEATER REGULATOR
WITH A WRENCH TO PREVENT MOVEMENT
WHEN CONNECTING TO INLET PIPING

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.

Anchor Screw

(Both Sides)

Alternate

Location

Summary of Contents for VFGL-18MSN-3 Series

Page 1: ...service agency or the gas supplier This is an unvented gas fired heater It uses air oxygen from the room in which it is installed Provisions for adequate combus tion and ventilation air must be provid...

Page 2: ...Young children should be carefully super vised when they are in the same room with the heater Do not place clothing or other flammable material on or near the heater Any safety screen or guard removed...

Page 3: ...h has had the damper blocked open as detailed in these installation instructionsprecludeconsiderationofthecom bustion and ventilation air and clearance to combustible restrictions discussed herein COM...

Page 4: ...damper Screw in a bolt of sufficient size and adjust to provide the minimum 29 square inches of flue opening CAUTION HEATERSCREATEWARMAIRCUR RENTS THESE CURRENTS MOVE HEAT TO WALLSURFACESNEXTTOHEATER...

Page 5: ...re 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 Fig ure 7 Figure 7 N...

Page 6: ...ireplace firebox floor with the two 2 screws provided Figure 8 Loosen screws and proceed with the installation Figure 8 Step 2 Connecting Gas Line A qualified gas appliance installer must connect the...

Page 7: ...firebox using the screws and drilled holes discussed in Step 2 Step 4 Assembling the Logs WARNING DO NOT ADD EXTRA LOGS OR ORNAMENTSSUCHASPINECONES VER MICULITEORROCKWOOL USINGTHESE ADDED ITEMS CAN C...

Page 8: ...ble in kit form are easy to install and are packaged complete with all re quired parts and instructions Some of the option kits need to be fitted prior to completing the installation of the appliance...

Page 9: ...ce turning it on and off from your favorite easy chair The wall switch kit should be installed along with the appliance Wall Thermostat Kit A wall thermostat kit is available for use with these applia...

Page 10: ...ural Piezo 5 w c Max 10 5 w c Manual Millivolt Min 6 w c VFGL 24P 32 000 Propane LPG Piezo 10 w c Max 13 w c Manual Millivolt Min 11 w c VFGL 28N 32 000 Natural Piezo 5 w c Max 10 5 w c Manual Millivo...

Page 11: ...ce Replace burner Replace gas regulator Problem will stop after a few hours of operation Superior recommends running the heater with the excess ventilation for the first few hours Turn control knob to...

Page 12: ...t the flame failure detector from shutting off the gas while the probe is warming up 10 Release the control knob while turning counterclockwise to the preferred setting If the knob does not pop out wh...

Page 13: ...LE 13 Figure 16 Figure 15 Gas Control Knob Location Pilot Location Turn Control Knob to OFF Position Manual Turn Control Knob to IGN Position Manual Figure 18 Figure 17 Pilot O F F I G N L O W H I O F...

Page 14: ...gas control knob Never use tools If the knob will not push in or turn by hand do not try to repair it call a qualified service technician Forced or attempted repair may result in a fire or explosion D...

Page 15: ...rce Figure 19 Pilot Location Figure 20 Pilot Figure 21 Turn Control Knob to OFF Position Turn Control Knob to PILOT Position E A TPTH TP TH P I L O T H I L O W P I L O T O N it O F F E A TPTH TP TH P...

Page 16: ...Propane L P G 901915 901915 901915 5 Regulator Natural 110351 110351 110351 Regulator Propane L P G 110352 110352 110352 6 Front Burner 110281 110282 110282 7 Rear Burner Natural 110684 110682 110682...

Page 17: ...NOTE DIAGRAMS ILLUSTRATION NOT TO SCALE 17 REPLACEMENT PARTS 1 2 5 9 10 11 13 14 12 8 7 6 3 4...

Page 18: ...NOTE DIAGRAMS ILLUSTRATION NOT TO SCALE 18...

Page 19: ...NOTE DIAGRAMS ILLUSTRATION NOT TO SCALE 19...

Page 20: ...of any components not manufactured or supplied by the Manufacturer 2 The Unvented Gas Room Heater must be subjected to normal use The Unvented Gas Room Heaters are designed to burn either natural or...

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