SHM SVFM18NG User Manual

VENT FREE GAS LOG SET
Owner’s Operation and Installation Manual
WARNING: If the information in this manual
is not followed exactly, a fire or explosion
may result causing property damage,
personal injury, or loss of life.
— Do not store or use gasoline or other
flammable vapors and liquids in the
a ro siht fo ytiniciv ny other appliance.
— WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
• Do not touch any electrical switch; do
not use any phone in your building.
• Immediately call your gas supplier
from a neighbor’s phone. Follow the
gas supplier’s instructions.
• If you cannot reach your gas supplier,
call the fire department.
— Installation and service must be
performed by a qualified installer,
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 provided.
Refer to page 4, Air for Combustion and
Ventilation.
INSTALLER: Leave this manual with the
appliance.
CONSUMER: Retain this manual for future
reference.
This appliance may be installed in an
aftermarket,* permanently located, manu-
factured (mobile) home, where not prohib-
ited by local codes.
This appliance is only for use with the type of
gas indicated on the rating plate. This app-
liance is not convertible for use with other
gases.
* Aftermarket: Completion of sale, not for purpose of resale, from
the manufacturer
This appliance has been tested and approved
under ANSI
Z21.11.2–2011 Unvented Gas-
Fired Room Heaters.
WARNING: This appliance is for installation
only in a solid fuel burning masonry or UL127
factory-built fireplace or listed ventless fire-
box enclosure. It has been design certified for
these installations. EXCEPTION: DO NOT in-
stall this appliance in a factory-built fireplace
that includes instruction stating it has not
been tested or should not be used with un-
vented gas logs.
(S,B)VFM18NG
(S,B)VFM18LP
(S,B)VFM24NG
(S,B)VFM24LP
Also Design-Certified As Vented Decorative Appliances
(S,B)IVFMV18NG
(S,B)IVFMV18LP
(S,B)IVFMV24NG
(S,B)IVFMV24LP
ANSI Z21.11.2 - 2011
Unvented Heaters
ANSI Z21.60 - 2004
Vented Decorative

SHM SVFM18NG Specifications

General

Category	Fireplace Accessories
Fuel Type	Natural Gas
Heat Output	18, 000 BTU
Material	Steel
Color	Black
Model	SVFM18NG
Ignition Type	Electronic

Summary

SAFETY INFORMATION

DANGER: Carbon monoxide poisoning

Critical warning about CO poisoning risks and symptoms. Get fresh air immediately.

WARNING: Installation, Modification, and General Safety

AIR FOR COMBUSTION AND VENTILATION

INSTALLATION

Installation Warnings, Items, and Clearances

Gas Type, Pressure, and Connections

Verifying gas type, pressure, regulator installation, and supply connection.

Piping, Shutoff Valves, and Leak Testing

Details piping, shutoff valves, leak testing, and pressure testing procedures.

OPERATING HEATER

Manual Lighting and Gas Leak Procedures

Step-by-step manual lighting, gas leak procedures, and operational safety warnings.

Pilot Ignition and Heat Adjustment

Detailed steps for pilot ignition and adjusting heat levels with variable controls.

Remote Control Operation and Shutoff

INSPECTING BURNERS

CLEANING AND MAINTENANCE

TROUBLESHOOTING

Ignition, Spark, and Pilot Flame Issues

Troubleshooting for no spark, no ignition, and pilot flame going out.

Burner Operation and Airflow Issues

Heater Shutoff and Gas Leak Issues

Troubleshooting for ODS shutoff, gas odors, and remote control malfunctions.

PARTS LIST & ILLUSTRATED PARTS BREAKDOWN

SERVICE INFORMATION

SPECIFICATIONS

WARRANTY INFORMATION

Limited Warranty Terms and Service Procedures