Page 1
UNVENTED (VENT-FREE) INFRARED GAS HEATER
PFS
®
US
SAFETY INFORMATION AND INSTALLATION MANUAL
MODELS
GWRP16C, GWRN18C, GWRP26C, GWRN30C,
GWRP16TC, GWRN18TC, GWRP26TC, GWRN30TC
VSHRP16M, VSHRP16T, VSHRN18M, VSHRN18T,
VSHRP26M, VSHRP26T, VSHRN30M, AND VSHRN30T
WARNING: If the information in this manual is not
followed exactly, a re or explosion may result causing
property damage, personal injury or loss of life.
— Do not store or use gasoline or other ammable
vapors and liquids in the vicinity of this or any 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 re
department.
— Installation and service must be performed by a quali-
ed installer, service agency or the gas supplier.
INSTALLER: Leave this manual with the appliance.
CONSUMER: Retain this manual for future reference.
For more information, visit www.fmiproducts.com
Page 2
Safety .................................................................. 2
TABLE OF CONTENTS
Local Codes......................................................... 4
Product Identication ........................................... 4
Unpacking............................................................ 4
Product Features ................................................. 4
Air For Combustion and Ventilation ..................... 5
Installation ........................................................... 7
Operation ........................................................... 14
Inspecting Heater .............................................. 17
Cleaning and Maintenance ................................ 17
SAFETY
Specications .................................................... 18
Troubleshooting ................................................. 19
Parts .................................................................. 22
Accessories ....................................................... 27
Replacement Parts ............................................ 27
Service Publications .......................................... 27
Service Hints ..................................................... 27
Technical Service............................................... 27
Warranty ..............................................Back Cover
WARNING: Improper
installation, adjustment,
alteration, service or main-
tenance can cause injury
or property damage. Refer
to this manual for correct
installation and operational procedures. For assis-
tance or additional infor-
mation consult a qualied
installer, service agency
or the gas supplier.
WARNING: This is an
unvented gas-red heater. It uses air (oxygen)
from the room in which
it is installed. Provisions
for adequate combustion
and ventilation air must
be provided. Refer to Air
for Combustion and Ventilation section on page 5
of this manual.
This appliance is only for
use with the type of gas
indicated on the rating
plate. This appliance is
not convertible for use
with other gases.
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This appliance may be installed in an aftermarket,*
perma n ently locat e d,
manufactured (mobile)
home, where not prohibited by local codes.
* Aftermarket: Completion of sale, not for
purpose of resale, from the manufacturer
WARNING: This product con-
tains and/or generates chemicals
known to the State of California
to cause cancer or birth defects
or other reproductive harm.
IMPORTANT: Read this owner’s
manual carefully and completely
be for e t rying to assemble,
operate or service this heater.
Improper use of this heater can
cause serious injury or death
from burns, fire, explosion,
electrical shock and carbon
monoxide poisoning.
DANGER: Carbon monoxide
poisoning may lead to death!
Carbon Monoxide Poisoning: Early signs
of carbon monoxide poisoning resemble the
u, with headaches, dizziness or nausea. If
you have these signs, the heater may not be
working properly. Get fresh air at once! Have
heater serviced. Some people are more affected by carbon monoxide than others. These
include pregnant women, people with heart or
lung disease or anemia, those under the inuence of alcohol and those at high altitudes.
125311-01A2
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SAFETY
Continued
Natural and Propane/LP Gas: Natural and
propane/LP gases are odorless. An odormaking agent is added to these gases. The
odor helps you detect a gas leak. However, the
odor added to the gas can fade. Gas may be
present even though no odor exists.
Make certain you read and understand all
warnings. Keep this manual for reference. It
is your guide to safe and proper operation of
this heater.
WARNING: Any change to
this heater or its controls can
be dangerous.
WARNING: Do not use a
blower insert, heat exchanger
insert or other accessory not approved for use with this heater.
Due to high temperatures, the
appliance should be located out
of trafc and away from furniture
and draperies.
Do not place clothing or other
ammable material on or near
the appliance. Never place any
objects on the heater.
Surface of heater becomes very
hot when running heater. Keep
children and adults away from
hot surface to avoid burns or
clothing ignition. Heater will
remain hot for a time after shut-
down. Allow surface to cool
before touching.
Carefully supervise young chil-
dren when they are in the room
with heater.
Make sure grill guard is in place
before running heater.
125311-01A 3
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Keep the appliance area clear
and free from combustible materials, gasoline and other ammable vapors and liquids.
1. This appliance is only for use with the type
of gas indicated on the rating plate. This
appliance is not convertible for use with
other gases.
2. Do not place propane/LP supply tank(s)
inside any structure. Locate propane/LP
supply tank(s) outdoors.
3. This heater shall not be installed in a
bedroom or bathroom.
4. If you smell gas
• shut off gas supply
• 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 re department
5. Manual Control Models Always run
heater with plaque control knob at the 1,
2, 3 or 4 locked positions. Never set control knob between locked positions. Poor
combustion and higher levels of carbon
monoxide may result.
6. This heater needs fresh, outside air ventilation to run properly. This heater has an Oxygen Depletion Sensing (ODS) safety shutoff
system. The ODS shuts down the heater if
not enough fresh air is available. See Air for
Combustion and Ventilation, page 5.
7. Keep all air openings in front and bottom
of heater clear and free of debris. This will
insure enough air for proper combustion.
8. If heater shuts off, do not relight until you
provide fresh, outside air. If heater keeps
shutting off, have it serviced.
9. Do not run heater
• where ammable liquids or vapors are
used or stored
• under dusty conditions
10. Do not use heater if any part has been
under water. Immediately call a qualied
service technician to inspect the room
heater and to replace any part of the
control system and any gas control which
has been under water.
Page 4
SAFETY
Ignitor Button
Control Knob
Heater Cabinet
Front Panel
Plaque
Grill
Guard
Continued
11. Turn off and unplug heater and let cool
before servicing. Only a qualied service
person should service and repair heater.
12. Operating heater above elevations of
4,500 feet (1,371 m) could cause pilot
outage.
13. To prevent performance problems, do not
use propane/LP fuel tank of less than 100
lbs. (45 kg) capacity.
LOCAL CODES
Install and use heater with care. Follow all
local codes. In the absence of local codes,
use the latest edition of The National Fuel
Gas Code ANSI Z223/NFPA 54*.
*Available from:
American National Standards Institute, Inc.
1430 Broadway
New York, NY 10018
National Fire Protection Association, Inc.
Batterymarch Park
Quincy, MA 02269
14. Before using furniture polish, wax, carpet
cleaner or similar products, turn heater off.
If heated, the vapors from these products
may create a white powder residue within
burner box or on adjacent walls or furniture.
15. Provide adequate clearances around air
openings.
State of Massachusetts: The installation must be made by a licensed plumber
or gas fitter in the Commonwealth of
Massachusetts.
Sellers of unvented propane or natural
gas-red supplemental room heaters shall
provide to each purchaser a copy of 527
CMR 30 upon sale of the unit.
Vent-free gas products are prohibited for
bedroom and bathroom installation in the
Commonwealth of Massachusetts.
(actual heater may vary from illustration
PRODUCT
IDENTIFICATION
Figure 1 - Vent-Free Gas Heater
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UNPACkING
1. Remove heater from carton.
2. Remove all protective packaging applied
to heater for shipment.
3. Check heater for any shipping damage. If
heater is damaged call FMI PRODUCTS,
LLC at 1-866-328-4537 for replacement
parts before returning to dealer.
PRODUCT FEATURES
SAFETY DEVICE
This heater has a pilot with an Oxygen Depletion Sensing (ODS) safety shutoff system. The
ODS/pilot is a required feature for vent-free
room heaters. The ODS/pilot shuts off the
heater if there is not enough fresh air.
IGNITION SYSTEM
Some models are equipped with a piezo
ignitor that requires no matches, batteries or
other sources to light heater.
Other heaters are equipped with an electronic
ignitor to light heater fuel supply.
THERMOSTATIC HEAT CONTROL
(Thermostat Models Only)
Thermostat models have a thermostat sensing bulb and a control valve. This results in the
greatest heater comfort. This can also result
in lower gas bills.
125311-01A4
Page 5
AIR FOR COMBUSTION AND VENTILATION
WARNING: This heater shall
not be installed in a room or space
unless the required volume of indoor combustion air is provided
by the method described in the
National Fuel Gas Code, ANSI
Z223.1/NFPA 54, the International
Fuel Gas Code, or applicable lo-
cal codes. Read the following instructions to insure proper fresh
air for this and other fuel-burning
appliances in your home.
Today’s homes are built more energy efcient
than ever. New materials, increased insulation
and new construction methods help reduce
heat loss in homes. Home owners weather
strip and caulk around windows and doors to
keep the cold air out and the warm air in. During heating months, home owners want their
homes as airtight as possible.
While it is good to make your home energy
efcient, your home needs to breathe. Fresh
air must enter your home. All fuel-burning appliances need fresh air for proper combustion
and ventilation.
Exhaust fans, heaters, clothes dryers and fuel
burning appliances draw air from the house to
operate. You must provide adequate fresh air
for these appliances. This will insure proper
venting of vented fuel-burning appliances.
PROVIDING ADEQUATE
VENTILATION
The following are excerpts from National Fuel
Gas Code. ANSI Z223.1/NFPA 54, Air for
Combustion and Ventilation.
All spaces in homes fall into one of the three
following ventilation classications:
1. Unusually Tight Construction
2. Unconned Space
3. Conned Space
The information on pages 5 through 7 will
help you classify your space and provide
adequate ventilation.
Unusually Tight Construction
The air that leaks around doors and windows
may provide enough fresh air for combustion
and ventilation. However, in buildings of unusually tight construction, you must provide
additional fresh air.
Unusually tight construction is dened as
construction where:
a. walls and ceilings exposed to the out-
side atmosphere have a continuous
water vapor retarder with a rating of
one perm (6x10
less with openings gasketed or sealed
and
b. weather stripping has been added on
openable windows and doors and
c. caulking or sealants are applied to
areas such as joints around window
and door frames, between sole plates
and oors, between wall-ceiling joints,
between wall panels, at penetrations
for plumbing, electrical and gas lines
and at other openings.
If your home meets all of the three criteria
above, you must provide additional fresh air.
See Ventilation Air From Outdoors, page 7.
If your home does not meet all of the three
criteria above, proceed to Determining
Fresh-Air Flow For Heater Location.
Conned Space and Unconned Space
The National Fuel Gas Code ANSI Z223.1/
NFPA 54 denes a conned space as a space
whose volume is less than 50 cubic feet per
1,000 Btu per hour (4.8 m3 per kw) of the aggregate input rating of all appliances installed
in that space and an unconned space as a
space whose volume is not less than 50 cubic
feet per 1,000 Btu per hour (4.8 m3 per kw)
of the aggregate input rating of all appliances
installed in that space. Rooms communicating
directly with the space in which the appliances
are installed*, through openings not furnished
with doors, are considered a part of the unconned space.
* Adjoining rooms are communicating only if
there are doorless passageways or ventilation
grills between them.
-11
kg per pa-sec-m2) or
125311-01A 5
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Page 6
AIR FOR COMBUSTION AND VENTILATION
Continued
DETERMINING FRESH-AIR FLOW
FOR HEATER LOCATION
Determining if You Have a Conned or
Unconned Space
Use this work sheet to determine if you have
a conned or unconned space.
Space: Includes the room in which you will install
heater plus any adjoining rooms with doorless
passageways or ventilation grills between the
rooms.
1. Determine the volume of the space (length
x width x height).
Length x Width x Height =__________cu. ft.
(volume of space)
Example: Space size 20 ft. (6.1m) (length) x
16 ft. (4.88m) (width) x 8 ft. (2.44 m) (ceiling
height) = 2,560 cu. ft. (72.49 m2)(volume of
space)
If additional ventilation to adjoining room
is supplied with grills or openings, add the
volume of these rooms to the total volume
of the space.
2. Multiply the space volume by 20 to determine
the maximum Btu/Hr the space can support.
________ (volume of space) x 20 = (Maxi-
mum Btu/Hr the space can support)
Example: 2,560 cu. ft. (72.49 m2) (volume of
space) x 20 = 51,200 (maximum Btu/Hr the
space can support)
3. Add the Btu/Hr of all fuel burning appliances
in the space.
Vent-free heater _________ Btu/Hr
Gas water heater* _________ Btu/Hr
Gas furnace _________ Btu/Hr
Vented gas heater _________ Btu/Hr
Gas heater logs _________ Btu/Hr
Other gas appliances* + _________ Btu/Hr
Total = _________Btu/Hr
* Do not include direct-vent gas appliances.
Direct-vent draws combustion air from the
outdoors and vents to the outdoors.
Example:
Gas water heater _________ Btu/Hr
Vent-free heater + _________Btu/Hr
Total = _________Btu/Hr
4. Compare the maximum Btu/Hr the space
can support with the actual amount of Btu/
Hr used.
_______ Btu/Hr (maximum can support)
_______ Btu/Hr (actual amount used)
Example: 51,200 Btu/ Hr (ma ximum the
space can support)
60,000 Btu/Hr (actual amount of
Btu/Hr used)
40,000
20,000
60,000
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The space in the example is a conned space
because the actual Btu/Hr used is more than the
maximum Btu/Hr the space can support. You
must provide additional fresh air. Your options
are as follows:
A. Rework worksheet, adding the space of an
adjoining room. If the extra space provides an
unconned space, remove door to adjoining
room or add ventilation grills between rooms.
See Ventilation Air From Inside Building.
B. Vent room directly to the outdoors. See
Ventilation Air From Outdoors, page 7.
C. Install a lower Btu/Hr heater, if lower Btu/Hr
size makes room unconned.
If the actual Btu/Hr used is less than the maximum Btu/Hr the space can support, the space is
an unconned space. You will need no additional
fresh air ventilation.
WARNING: If the area in which
the heater may be operated does
not meet the required volume for
indoor combustion air, combustion and ventilation air shall be
provided by one of the methods
described in the National Fuel
Gas Code, ANSI Z223.1/NFPA 54,
the International Fuel Gas Code,
or applicable local codes.
VENTILATION AIR
Ventilation Air From Inside Building
This fresh air would come from an adjoining
unconned space. When ventilating to an
adjoining unconned space, you must provide
two permanent openings: one within 12" (30.5
cm) of the ceiling and one within 12" (30.5 cm)
of the oor on the wall connecting the two
spaces (see options 1 and 2, Figure 2, page
7). You can also remove door into adjoining
room (see option 3, Figure 2, page 7). Follow
the National Fuel Gas Code, ANSI Z223.1/
NFPA 54, Air for Combustion and Ventilation
for required size of ventilation grills or ducts.
125311-01A6
Page 7
AIR FOR COMBUSTION AND VENTILATION
Or
Remove
Door into
Adjoining
Room,
Option 3
Ventilation Grills
Into Adjoining Room,
Option 2
12"
12"
Ventilation
Grills into
Adjoining
Room,
Option 1
Outlet
Air
Ventilated
Attic
Outlet
Air
Inlet
Air
Inlet Air
Ventilated
Crawl Space
To
Crawl
Space
To Attic
Continued
ing and one within 12" (30.5 cm) of the oor.
Connect these items directly to the outdoors
or spaces open to the outdoors. These spaces
include attics and crawl spaces. Follow the Na-
tional Fuel Gas Code, ANSI Z223.1/NFPA 54,
Air for Combustion and Ventilation for required
size of ventilation grills or ducts.
IMPORTANT: Do not provide openings for inlet
or outlet air into attic if attic has a thermostatcontrolled power vent. Heated air entering the
attic will activate the power vent.
Figure 2 - Ventilation Air from Inside
Building
Ventilation Air From Outdoors
Provide extra fresh air by using ventilation grills
or ducts. You must provide two permanent
openings: one within 12" (30.5 cm) of the ceil-
Figure 3 - Ventilation Air from Outdoors
INSTALLATION
NOTICE: This heater is intended
for use as supplemental heat.
Use this heater along with your
primary heating system. Do not
install this heater as your primary heat source. If you have a
central heating system, you may
run system’s circulating blower
while using heater. This will help
circulate the heat throughout the
house. In the event of a power
outage, you can use this heater
as your primary heat source.
WARNING: A qualied service person must install heater.
Follow all local codes.
WARNING: This appliance is
equipped for either natural gas or
propane/LP gas but not both. Gas
type is indicated on the rating plate.
Field conversion is not permitted.
125311-01A 7
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CHECK GAS TYPE
Use only the correct gas type (natural
or propane/LP) for your unit. If your gas
supply is not correct, do not install heater.
Call dealer where you bought heater for
proper type heater.
INSTALLATION ITEMS
Before installing heater, make sure you have
the items listed below.
• for propane/LP gas, external regulator
(supplied by installer)
• piping (check local codes)
• sealant (resistant to propane/LP gas)
• equipment shutoff valve *
• ground joint union
• sediment trap
• tee joint
• pipe wrench
• for natural gas, test gauge connection*
• hardware packet (included)
- wall anchor (4) 095112-02
- red key (1) 095116-01
- pan head screw, black (4) 097403-02
- nylon spacer (2) 099064-02
- clip (1) 099123-01
- Phillips head screw, silver (4) 100159-02
* An equipment shutoff valve with 1/8" NPT tap
is an acceptable alternative to test gauge connection. The optional equipment shutoff valve
can be purchased from your dealer.
Page 8
INSTALLATION
Minimum
From
Sides Of
Heater
2" (5.1 cm)
FLOOR
CEILING
36"
(91.5 cm)
Minimum
Minimum To
Top Surface
Of Carpeting,
Tile Or Other
Combustible
Material
Left
Side
Right
Side
10" (25.4 cm)
36"
(91.5 cm)
Clip
Thermostat
Sensing
Bulb
Continued
LOCATING HEATER
This heater is designed to be mounted on a wall.
WARNING: Maintain the
minimum clearances shown
in Figure 4. If you can, provide
greater clearances from oor,
ceiling and joining wall.
You can locate heater on oor, away from
a wall. An optional oor mounting stand is
needed. Purchase the oor mounting stand
from your dealer. See Accessories, page 27,
if stand is not included with your heater.
WARNING: Never install the
heater
• in a bedroom or bathroom
• in a recreational vehicle
• where curtains, furniture, clothing or other ammable objects
are less than 36" (91.5 cm)
from the front, top or sides of
the heater
• as a replace insert
• in high trafc areas
• in windy or drafty areas
IMPORTANT: Vent-free heaters add moisture
to the air. Although this is benecial, installing
heater in rooms without enough ventilation
air may cause mildew to form from too much
moisture. See Air for Combustion and Ventila-
tion, page 5. If high humidity is experienced,
a dehumidier may be used to help lower the
water vapor content in the air.
For convenience and efciency, install heater
• where there is easy access for operation,
inspection and service
• in coldest part of room
If not included with your heater, an optional fan
kit is available from your dealer. See Acces-
sories, page 27. If planning to use fan, locate
heater near an electrical outlet (see page 16).
CAUTION: If you install the
heater in a home garage
• heater pilot and burner must
be at least 18" (45.7 cm) above
oor
• locate heater where moving
vehicle will not hit it
CAUTION: This heater cre-
ates warm air currents. These
currents move heat to wall sur-
faces next to heater. Installing
heater next to vinyl or cloth wall
coverings or operating heater
where impurities (such as, but
not limited to, tobacco smoke,
aromatic candles, cleaning uids,
oil or kerosene lamps, etc.) in the
air exist, may discolor walls or
cause odors.
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Figure 4 - Mounting Clearances As
Viewed From Front of Heater
THERMOSTAT SENSING BULB
(Thermostat Models Only)
The thermostat sensing bulb has been placed
below the heater.
1. Place clip on thermostat sensing bulb as
shown in Figure 5. Clip is provided in hardware package.
2. Snap clip into upper mounting hole as shown
in Figure 5. Mounting hole is located on lower
left edge on back of heater. Make sure thermostat sensing bulb is pointing up.
Figure 5 - Attaching Thermostat Sensing
Bulb
125311-01A8
Page 9
INSTALLATION
Screw
Front Panel
16"
Min.
14"
12"
Min.
Ad joi ni ng Wa ll
14"
Ad joi ni ng Wa ll
Only Insert Mounting
Screws Through Last
Hole On Each End
Only Insert Mounting
Screws Through Last
Hole On Each End
Floor
Floor
19 3/4"
Min.
19 3/4"
Min.
5 Plaque Heaters
3 Plaque Heater
Continued
INSTALLING HEATER TO WALL
Mounting Bracket
Locate mounting bracket in heater carton. Remove mounting bracket from heater carton.
Figure 6 - Mounting Bracket
Removing Front Panel Of Heater
1. Remove the four painted screws, two on
each side of front panel.
2. Pull bottom of front panel forward, then out.
3. Remove any remaining packaging materials.
MARKING SCREW LOCATIONS
1. Tape mounting bracket to wall where
heater will be located. Make sure mounting bracket is level.
WARNING: Maintain minimum
clearances shown in Figure 8. If
you can, provide greater clearances from oor and joining wall.
2. Mark screw locations on wall (see Figure 8).
Note: Only mark last hole on each end of
mounting bracket. Insert mounting screws
through these holes only.
3. Remove tape and mounting bracket from wall.
Figure 7 - Removing Front Panel of Heater
(actual heater may vary from Illustration)
Methods For Attaching Mounting Bracket
To Wall
Only use last hole on each end of mounting
bracket to attach bracket to wall. These two
holes are 14" (35.6 cm) apart from their centers. Attach mounting bracket to wall in one
of two ways:
1. Attaching to wall stud
2. Attaching to wall anchor
Attaching to Wall Stud: This method provides the strongest hold. Insert mounting
screws through mounting bracket and into
wall studs.
Attaching to Wall Anchor: This method allows you to attach mounting bracket to hollow
walls (wall areas between studs) or to solid
walls (concrete or masonry).
Decide which method better suits your needs.
Either method will provide a secure hold for
the mounting bracket.
125311-01A 9
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Figure 8 - Mounting bracket Clearances
Attaching Mounting Bracket To Wall
Note: Wall anchors, mounting screws and
spacers are in hardware package. The hardware package is provided with heater.
Attaching To Wall Stud Method
For attaching mounting bracket to wall studs
1. Drill holes at marked locations using 9/64"
drill bit.
2. Place mounting bracket onto wall. Line
up last hole on each end of bracket with
holes drilled in wall.
3. Insert mounting screws through bracket
and into wall studs.
4. Tighten screws until mounting bracket is
rmly fastened to wall studs.
Page 10
INSTALLATION
Mounting
Bracket
(attached
to wall)
Horizontal Slots
Stand-Out Ta b
Side View
Front View
Wall
Spacer
Heater
Continued
Attaching To Wall Anchor Method
For attaching mounting bracket to hollow
walls (wall areas between studs) or solid walls
(concrete or masonry)
1. Drill holes at marked locations using
5/16" drill bit. For solid walls (concrete or
masonry), drill at least 1" (2.5 cm) deep.
2. Fold wall anchor as shown in Figure 9.
3. Insert wall anchor (wings rst) into hole.
Tap anchor ush to wall.
4. For thin walls [1/2" (1.3 cm) or less], insert
red key into wall anchor. Push red key to
“pop” open anchor wings. IMPORTANT:
Do not hammer key! For thick walls [over
1/2" (1.3 cm) thick] or solid walls, do not
pop open wings.
5. Place mounting bracket onto wall. Line up
last hole on each end of bracket with wall
anchors.
6. Insert mounting screws through bracket
and into wall anchors.
7. Tighten screws until mounting bracket is
rmly fastened to wall.
3. Remove heater from mounting bracket.
4. If installing bottom mounting screws into
hollow or solid wall, install wall anchors.
Follow steps 1 through 4 under Attaching
To Wall Anchor Method.
If installing bottom mounting screw into
wall stud, drill holes at marked locations
using 9/64" drill bit.
5. Replace heater onto mounting bracket.
6. Place spacers between bottom mounting
holes and wall anchor or drilled hole.
7. Hold spacer in place with one hand. With
other hand, insert mounting screw through
bottom mounting hole and spacer. Place
tip of screw in opening of wall anchor or
drilled hole.
8. Tighten both screws until heater is rmly
secured to wall. Do not over tighten.
Note: Do not replace front panel at this
time. Replace front panel after making
gas connections and checking for leaks
(see page 11).
Figure 9 - Folding
Placing Heater On Mounting Bracket
1. Locate two horizontal slots on back panel
2. Place heater onto mounting bracket. Slide
Installing Bottom Mounting Screws
1. Locate two bottom mounting holes. These
2. Mark screw locations on wall.
Anchor
of heater.
horizontal slots onto stand-out tabs on
mounting bracket.
Figure 11 - Mounting Heater onto
Mounting Bracket
holes are near bottom on back panel of
heater (see Figure 12).
Figure 10 - Popping
Open Anchor Wings
for Thin Walls
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Figure 12 - Installing Bottom Mounting
Screws
MOUNTING HEATER TO FLOOR
WITH OPTIONAL FLOOR KIT
Mounting Base Feet to Heater
Note: A 90° elbow is required for mounting
this unit and must be installed BEFORE base
feet to provide proper clearance (see Figure
15, page 12).
1. Lay heater cabinet on its back on a table
with the heater bottom overhanging table
edge.
2. Apply pipe joint sealant lightly to male NPT
threads of elbow. Hold pressure regulator
with a wrench when connecting elbow.
Do not overtighten elbow to regulator.
Regulator body could be damaged.
125311-01A10
Page 11
INSTALLATION
Sheet
Metal
Screw
Wood
Screw
Base Foot
Continued
3. Align holes in base foot with mounting holes
on bottom of cabinet (see Figure 13).
4. Secure base foot to heater using sheet
metal screws.
5. Repeat for other side.
Figure 13 - Installing Base Feet (actual
heater may vary from illustration)
Mounting Base Feet to Floor
1. Remove front panel (see Removing Front
Panel of Heater, page 9).
2. Position heater with base feet in desired
location. Mark holes for drilling. Remove
heater with base.
3. For carpeted oors, make a small cut with
a sharp knife at marked locations prior to
drilling. If mounting base to a wood oor,
drill 1/8" diameter hole, 3/4" deep. (Do not
use anchors in wood oors).
If mounting base to a concrete oor, drill with
1/4" diameter concrete drill bit, 13/8" into
oor. Insert anchors completely into holes.
4. Reposition heater with base feet over holes.
Secure base to oor with wood screws. See
Figure 13.
CONNECTING TO GAS SUPPLY
WARNING: This appliance
requires a 3/8" NPT (National
Pipe Thread) inlet connection to
the pressure regulator.
IMPORTANT: For natural gas, check gas line
pressure before connecting heater to gas line.
Gas line pressure must be no greater than
10.5" W.C.. If gas line pressure is higher,
heater regulator damage could occur.
CAUTION: For propane/LP
gas, never connect heater directly to the propane/LP supply.
This heater requires an external
regulator (not supplied). Install
the external regulator between the
heater and propane/LP supply.
For propane/LP gas, the installer must supply
an external regulator. The external regulator will
reduce incoming gas pressure. You must reduce
incoming gas pressure to between 11" and 14"
W.C.. If you do not reduce incoming gas pressure, heater regulator damage could occur. Install
the external regulator with the vent pointing down
as shown in Figure 14. Pointing the vent down
protects it from freezing rain or sleet.
CAUTION: Use only new, black
iron or steel pipe. Internally-tinned
copper tubing may be used in
certain areas. Check your local
codes. Use pipe of large enough
diameter to allow proper gas volume to heater. If pipe is too small,
undue loss of volume will occur.
Typical Inlet Pipe Diameters
16-18,000 Btu/hr models - 3/8" or greater
26-30,000 Btu/hr models - 1/2" or greater
Installation must include equipment shutoff
valve, union and plugged 1/8" NPT tap. Locate
NPT tap within reach for test gauge hook up.
NPT tap must be upstream from heater (see
Figure 15, page 12).
WARNING: A qualied service
person must connect heater to gas
supply. Follow all local codes.
Propane/LP
Supply Tank
WARNING: For natural gas, never
connect heater to private (non-utility)
gas wells. This gas is commonly
known as wellhead gas.
125311-01A 11
www.fmiproducts.com
Figure 14 - Equipment Regulator with
Vent Pointing Down
External
Regulator
with Vent
Pointing
Down
Page 12
IMPORTANT: Install an equipment shutoff
Te e Pipe Cap
J oint Nipple
Te e Joint
Reducer
Bushing to
1/8" NPT
1/8" NPT
Plug Ta p
Pressure
Regulator
Test Gauge Connection*
Heater
Cabinet
Sediment Trap
3"
Min.
Natural Gas
From Gas
Meter (7" W.C.
to 10.5" W.C.
Pressure)
Propane/LP
From External
Regulator
(11" W.C. to 14"
W.C. Pressure)
Regulator
Bracket
Ground
Joint
Union
3/8" NPT
Pipe
Nipple
Equipment
Shutoff
Valve*
Connection Using Flexline
3/8" NPT/ 1/2"
Flare 90° Elbow
Flexline
See
illustration
above for
detail
Refer to connector's
instructions
valve in an accessible location. The equipment shutoff valve is for turning on or shutting
off the gas to the appliance.
Check your building codes for an special
requirements for locating equipment shutoff
valve to heater.
Apply pipe joint sealant lightly to male NPT
threads. This will prevent excess sealant from
going into pipe. Excess sealant in pipe could
result in clogged heater valves.
* An equipment shutoff valve with 1/8" NPT
tap is an acceptable alternative to test gauge
connection. Purchase the optional equipment
shutoff valve from your dealer.
INSTALLATION
Figure 15 - Gas Connection
www.fmiproducts.com
Continued
WARNING: Use pipe joint
sealant that is resistant to liquid
petroleum (LP) gas.
Install sediment trap in supply line as shown
in Figure 15. Locate sediment trap where it
is within reach for cleaning. Locate sediment
trap where trapped matter is not likely to
freeze. A sediment trap traps moisture and
contaminants. This keeps them from going
into heater controls. If sediment trap is not
installed or is installed wrong, heater may
not run properly.
IMPORTANT: Hold the pressure regulator with
wrench when connecting it to gas piping
and/or ttings. Do not over tighten pipe connection to regulator. The regulator body could
be damaged.
CHECKING GAS CONNECTIONS
WARNING: Test all gas piping
and connections, internal and
external to unit, for leaks after
installing or servicing. Correct
all leaks at once.
WARNING: Never use an
open ame to check for a leak.
Apply a noncorrosive leak detection uid to all joints. Bubbles
forming show a leak. Correct all
leaks at once.
CAUTION: For propane/LP
units, make sure external regulator has been installed between
propane/LP supply and heater.
See guidelines under Connecting
to Gas Supply, page 11.
PRESSURE TESTING GAS SUPPLY
PIPING SYSTEM
Test Pressures In Excess Of 1/2 PSIG (3.5 kPa)
1. Disconnect appliance with its appliance
main gas valve (control valve) and equipment shutoff valve from gas supply piping.
Pressures in excess of 1/2 psig will damage heater regulator.
125311-01A12
Page 13
Equipment
Shutoff
Valve
Propane/LP
Supply Tank
Thermostat Gas Valve
Equipment
Shutoff
Valve
Gas
Meter
Thermostat Gas Valve
2. Cap off open end of gas pipe where equipment shutoff valve was connected.
3. Pressurize supply piping system by either
opening propane/LP supply tank valve
for propane/LP gas or opening main gas
valve located on or near gas meter for
natural gas or using compressed air.
4. Check all joints of gas supply piping system.
Apply a commercial leak detection solution
to all joints. Bubbles forming show a leak.
5. Correct all leaks at once.
6. Reconnect heater and equipment shutoff
valve to gas supply. Check reconnected
ttings for leaks.
Test Pressures Equal To or Less Than
1/2 PSIG (3.5 kPa)
1. Close equipment shutoff valve (see Figure 16).
2. Pressurize supply piping system by either
opening propane/LP supply tank valve
for propane/LP gas or opening main gas
valve located on or near gas meter for
natural gas or using compressed air.
3. Check all joints from gas meter for natural
gas (see Figure 17)) or propane/LP supply
to equipment shutoff valve (see Figure
18). Apply a noncorrosive leak detection
uid to all joints. Bubbles forming show a
leak.
4. Correct all leaks at once.
PRESSURE TESTING HEATER GAS
CONNECTIONS
1. Open equipment shutoff valve (see Figure
16).
Equipment
Shutoff Valve
INSTALLATION
Continued
2. For natural gas, open main gas valve located on or near gas meter. For propane/
LP gas, open propane/LP supply tank
valve.
3. Make sure control knob of heater is in the
OFF position.
4. Check all joints from equipment shutoff
valve to thermostat gas valve (see Figure
17 or 18). Apply a noncorrosive leak detection uid to all joints. Bubbles forming
show a leak.
5. Correct all leaks at once.
6. Light heater (see Operation page 14).
Check all other internal joints for leaks.
7. Turn off heater (see To Turn Off Gas to
Appliance, page 15).
8. Replace front panel.
Figure 17 - Checking Gas Joints for
Natural Gas (actual heater may vary from
illustration)
Open
Closed
125311-01A 13
Figure 16 - Equipment Shutoff Valve
www.fmiproducts.com
Figure 18 - Checking Gas Joints for
Propane/LP Gas (actual heater may vary
from illustration)
Page 14
Control
Knob
O
O
T
Control
Knob
OPERATION
FOR YOUR SAFETY
READ BEFORE LIGHTING
WARNING: If you do not fol-
low these instructions exactly,
a re or explosion may result
causing property damage, personal injury or loss of life.
A. This appliance has a pilot which must
be ligh ted by hand. W hen lightin g
the pilot, follow these instructions
exactly.
B. BEFORE LIGHTING smell all around
the appliance area for gas. Be sure to
smell next to the oor because some
gas is heavier than air and will settle
on the oor.
WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
• Do not touch any electric 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 re department.
C. Use only your hand to push in or turn the
gas control knob. Never use tools. If the
knob will not push in or turn by hand, don’t
try to repair it, call a qualied service technician or gas supplier. Force or attempted
repair may result in a re or explosion.
D.
Do not use this appliance if any part has
been under water. Immediately call a
qualied service technician to inspect
the appliance and to replace any part of
the control system and any gas control
which has been under water.
LIGHTING
INSTRUCTIONS
1. STOP! Rea d the saf et y information
above.
2. Make sure equipment shutoff valve is
fully open.
3. Turn off any electric power to the appliance if service is to be performed.
4. Turn control knob clockwise to the
OFF position.
5. Wait ve (5) minutes to clear out any gas.
Then smell for gas, including near the
oor. If you smell gas, STOP! Follow “B”
www.fmiproducts.com
in the safety information, column 1. If you
don’t smell gas, go to the next step.
6. Thermostat Models: Turn control knob
counterclockwise to the PILOT
position. Press in control knob for ve (5)
seconds.
Manual Models: Press in and turn control
knob counterclockwise to the PILOT
position. Keep control knob pressed in for
ve (5) seconds.
7. With control knob pressed in, push down
and release ignitor button. This will light
pilot. The pilot is attached to the front of
burner. Note: You may be running this
heater for the rst time after hooking up to
gas supply. If so, you may need to press
in control knob for 30 seconds or more.
This will allow air to bleed from the gas
system. If needed, keep pressing ignitor
button until pilot lights. If ignitor does not
light pilot, refer to Troubleshooting, page
18 or contact a qualied service person
or gas supplier for repairs. Until repairs
are made, light pilot with match. To light
pilot with match, see Manual Lighting
Procedure, page 16.
8. Keep control knob pressed in for 30 seconds after lighting pilot. After 30 seconds,
release control knob.
• If control knob does not pop out when
released, contact a qualied service person or gas supplier for repairs.
Note: If pilot goes out, repeat steps 4
through 7. Wait one (1) minute before
lighting pilot
9. Turn control knob counterclockwise
to desired heating level. The main burner
should ligh t. Manual c ontro l heaters
should be used in locked positions.
Figure 19 - Control Knob in the OFF
Position for Manual Control Models
Figure 20 - Control Knob in the OFF
Position for Thermostat Models
125311-01A14
Page 15
OPERATION
Thermocouple
Ignitor Electrode
Pilot Burner
LOW
OFF
Control 16,000 & 26,000 &
Knob 18,000 Btu/Hr 30,000 Btu/Hr
LOW
HIHI
OFF
MEDMED
Control 16,000 & 26,000 &
Knob 18,000 Btu/Hr 30,000 Btu/Hr
ONON
Continued
10. To shut off burners only and leave pilot
lit, turn control knob clockwise to
the PILOT position.
WARNING: Always operate
manual control heaters at the
locked positions. Operation
between these positions may
create a possible health hazard
if used in a poorly ventilated
room. Read owner’s manual for
complete instructions.
CAUTION: Do not try to ad-
just heating levels by using the
equipment shutoff valve.
Figure 21 - Pilot
TO SELECT
HEATING LEVEL
Figure 22 - Burner Patterns for Manual
Control Models
THERMOSTAT MODELS
Turn thermostat control knob counterclockwise to the desired heating level. The main
burner should light. Set control knob to any
heat level between 1 and 5 (see Figure 23).
CAUTION: Do not try to ad-
just heating levels by using the
equipment shutoff valve.
MANUAL CONTROL MODELS
WARNING: When running
heater, set control knob at LOW,
MED or HI locked positions.
Never set control knob between
locked positions. Poor combustion and higher levels of carbon
monoxide may result.
Slightly press in control knob and turn counterclockwise to the LOW, MED or HI positions
(see Figure 22).
IMPORTANT: Release downward pressure
while turning control knob. Control knob will
lock at the desired position.
125311-01A 15
Figure 23 - Burner Patterns
TO TURN OFF GAS
TO APPLIANCE
1. Turn control knob clockwise to the
OFF position.
2. Turn off all electric power to the appliance
if service is to be performed.
3. Close equipment shutoff valve (see Figure
16, page 13).
www.fmiproducts.com
Page 16
OPERATION
Grounded
Outlet
Thermostat
Sensor
Switch
Green
White
Green
White
110/11 5
V.A.C.
Blower
Motor
Black
Black
Continued
THERMOSTAT CONTROL
OPERATION
The thermostatic control used on these
models differs from standard thermostats.
Standard thermostats simply turn on and off
the burner. The thermostat used on this heater
senses the room temperature. At times the
room may exceed the set temperature. If so,
the burner will shut off. The burner will cycle
back on when room temperature drops below
the set temperature. The control knob can be
set to any comfort level between 1 and 5. All
plaques will turn off and on.
Note: The thermostat sensing bulb measures the temperature of air near the heater
cabinet. This may not always agree with
room temperature (depending on housing
construction, installation location, room size,
open air temperatures, etc.) Frequent use of
your heater will let you determine your own
comfort levels.
MANUAL LIGHTING
PROCEDURE
1. Remove front panel (see Figure 7, page 9).
2. Follow steps 1 through 5 under Lighting
Instructions, page 14.
3. With control knob pressed in, strike match.
Hold match to pilot until pilot lights.
4. Keep control knob pressed in for 30 seconds after lighting pilot. After 30 seconds,
release control knob. Now follow step 9
under Lighting Instructions, page 14.
5. Replace front panel.
BLOWER
OPERATION
CAUTION: Label all wires
prior to disconnection when
servicing controls. Wiring errors
can cause improper and dangerous operation.
CAUTION: Do not plug power
cord into electrical outlet until
installation is complete.
Extension Cord
Use extension cord if needed. The cord must
have a three-prong, grounding plug and a
three-hole receptacle. Make sure cord is in
good shape. It must be heavy enough to carry
the current needed. An undersized cord will
cause a drop in line voltage. This will result in
loss of power and overheating. Use a No. 16
AWG cord for lengths less than 50 feet.
CAUTION: Verify proper operation after servicing.
Operating Blower
The blower is connected to a thermostat.
When unit heats up, the blower will operate.
A few minutes after unit cycles off or is turned
off, blower will shut off. Blower will cycle on
and off in this manner. Note: If you have a
heater with a thermostat, the heater and
blower will not turn off and on at exactly the
same time. Blower cycle times will vary with
heat setting selected.
WARNING: Blower acces-
sory must be grounded. Blower
co mes wit h a thr ee-pron g,
grounding plug as shown in
Figure 24. The plug is your
protection against electrical
shock. Plug it into a standard,
three-hole, grounded, outlet. If
cord needs replacing, use only a
cord with a three-prong, grounding plug.
www.fmiproducts.com
Figure 24 - Grounding Plug
Figure 25 - Wiring Diagram for Blower
Accessory
125311-01A16
Page 17
Thermocouple
Pilot Burner
Pilot Burner
Thermocouple
Blue Flame
Yellow Flame
INSPECTING HEATERS
Check pilot ame pattern and burner ame
patterns often.
PILOT FLAME PATTERN
Figure 26 shows a correct pilot ame pattern.
Figure 27 shows an incorrect pilot ame pattern. The incorrect pilot ame is not touching the
thermocouple. This will cause the thermocouple
to cool. When the thermocouple cools, the
heater will shut down.
If pilot ame pattern is incorrect, as shown
in Figure 27
• turn heater off (see To Turn Off Gas to Ap-
pliance, page 15)
• see Troubleshooting, page 18
Note: The pilot ame on natural gas units will
have a slight curve, but ame should be blue
and have no yellow or orange color.
Figure 26 - Correct Pilot Flame Pattern
BURNER FLAME PATTERN
Figure 28 shows a correct burner ame pattern. Figure 29 shows an incorrect burner
ame pattern.
If burner ame pattern is incorrect, as shown
in Figure 29
• turn heater off (see To Turn Off Gas to Ap-
pliance, page 15)
• see Troubleshooting, page 18
Figure 28 - Correct Burner Flame Pattern
Figure 27 - Incorrect Pilot Flame Pattern
and let cool before cleaning.
control areas, burner and circulating air passageways of heater
clean. Inspect these areas of
heater before each use. Have
heater inspected yearly by a
qualied service person. Heater
may need more frequent cleaning due to excessive lint from
carpeting, bedding material, pet
hair, etc.
125311-01A 17
CLEANING AND MAINTENANCE
WARNING: Turn off heater
CAUTION: You must keep
www.fmiproducts.com
Figure 29 - Incorrect Burner Flame
Pattern
WARNING: Failure to keep
the primary air opening(s) of
the burner(s) clean may result in
sooting and property damage.
ODS/PILOT AND BURNER
Use a vacuum cleaner, pressurized air or
small, soft bristled brush to clean.
BURNER PILOT AIR INLET
The primary air inlet holes allow the proper amount
of air to mix with the gas. This provides a clean
burning ame. Keep these holes clear of dust, dirt
and lint. Clean these air inlet holes prior to each
heating season. Blocked air holes will create soot.
We recommend that you clean the unit every
three months during operation and have heater
inspected yearly by a qualied service person.
Page 18
CLEANING AND MAINTENANCE
Continued
We also recommend that you keep the burner
tube and pilot assembly clean and free of dust
and dirt. To clean these parts we recommend
using compressed air no greater than 30 PSI.
Your local computer store, hardware store or
home center may carry compressed air in a
can. If using compressed air in a can, please
follow the directions on the can. If you don’t
follow directions on the can, you could damage the pilot assembly.
1. Shut off unit, including pilot. Allow unit to
cool for at least thirty minutes.
2. Inspect burner, pilot and primary air inlet
holes on orice holder for dust and dirt
(see Figure 30).
3. Blow air through the ports/slots and holes
in the burner.
4. Never inset objects into the pilot tube.
5. Blow air into the primary air holes on the
orice holder.
Clean pilot assembly also. A yellow tip on the
pilot ame indicates dust and dirt in the pilot
SPECIFICATIONS
GWRN18TC, VSHRN18T
• Natural Gas Only
• 18,000 Btu/h
• Pressure Regulator Setting: 6" W.C.
• Inlet Gas Pressure* (in. of water):
Maximum - 10.5" W.C., Minimum - 7" W.C.
GWRN30TC, VSHRN30T
• Natural Gas Only
• 30,000 Btu/h
• Pressure Regulator Setting: 6" W.C.
• Inlet Gas Pressure* (in. of water):
Maximum - 10.5" W.C., Minimum - 7" W.C.
GWRN18C, VSHRN18M
• Natural Gas Only
• 6,600/12,000/18,000 Btu/h
• Pressure Regulator Setting: 6" W.C.
• Inlet Gas Pressure* (in. of water):
Maximum - 10.5" W.C., Minimum - 7" W.C.
GWRN30C, VSHRN30M
• Natural Gas Only
• 6,600/18,000/30,000 Btu/h
• Pressure Regulator Setting: 6" W.C.
• Inlet Gas Pressure* (in. of water):
Maximum - 10.5" W.C., Minimum - 7" W.C
* For purposes of input adjustment.
www.fmiproducts.com
assembly. There is a small pilot air inlet hole
about 2" from where the pilot ame comes out
of the pilot assembly (see Figure 30). With the
unit off, lightly blow air through the air inlet
hole. You may blow through a drinking straw
if compressed air is not available.
Pilot
Assembly
Pilot Air
Inlet Hole
Figure 30 - Pilot Inlet Air Hole
CABINET
Air Passageways
Use pressurized air to clean.
Exterior
Use a soft cloth dampened with a mild soap
and water mixture. Wipe the cabinet to remove dust.
GWRP16TC, VSHRP16T
• Propane/LP Gas Only
• 16,000 Btu/h
• Pressure Regulator Setting: 8" W.C.
• Inlet Gas Pressure* (in. of water):
Maximum - 14" W.C., Minimum - 11" W.C.
GWRP26TC, VSHRP26T
• Propane/LP Gas Only
• 26,000 Btu/h
• Pressure Regulator Setting: 8" W.C.
• Inlet Gas Pressure* (in. of water):
Maximum - 14" W.C., Minimum - 11" W.C.
GWRP16C, VSHRP16M
• Propane/LP Gas Only
• 6,000/11,000/16,000/ Btu/h
• Pressure Regulator Setting: 8" W.C.
• Inlet Gas Pressure* (in. of water):
Maximum - 14" W.C., Minimum - 11" W.C.
GWRP26C, VSHRP26M
• Propane/LP Gas Only
• 6,000/16,000/26,000 Btu/h
• Pressure Regulator Setting: 8" W.C.
• Inlet Gas Pressure* (in. of water):
Maximum - 14" W.C., Minimum - 11" W.C.
125311-01A18
Page 19
TROUBLESHOOTING
WARNING: Turn off and unplug heater and let cool before servicing.
Only a qualied service person should service and repair heater.
CAUTION: Never use a wire, needle or similar object to clean
ODS/pilot. This can damage ODS/pilot unit.
Note: All troubleshooting items are listed in order of operation.
OBSERVED PROBLEM
Whe n i g n i t or butt o n i s
pressed in, there is no spark
at ODS/pilot
POSSIBLE CAUSE
1. Ignitor electrode positioned
wrong
2. Ignitor electrode broken
3. Ignitor electrode not con-
nected to ignitor cable
4. Igni tor cable pinched or
wet
5. Broken ignitor cable
6. Bad ignitor
7. Piezo ignitor nut (if equipped)
is loose
REMEDY
1. Replace pilot assembly
2. Replace pilot assembly
3. Reconnect ignitor cable
4. Free ignitor cable if pinched
by any metal or tubing. Keep
ignitor cable dry
5. Replace ignitor cable
6. Replace ignitor
7. Tighten nut holding piezo
ignitor. Nut is located inside
heater cabinet at top
When ignitor button is pressed
in, there is a spark at ODS/Pilot
but no ignition
Moisture/condensation noticed on windows
1. Gas supply turned off or
equipme nt shu to ff valve
closed
2. Control knob is not in pilot
position
3. Cont r o l knob n o t ful l y
pressed in while pressing
ignitor button
4. Air in gas lines when in-
stalled
5. Depleted gas supply (propane/LP gas)
6. ODS/pilot is clogged
7. Gas regulator setting is not
correct
1. Not enough combustion/
ventilation air
1. Turn on gas supply or open
equipment shutoff valve
2. Turn control knob to pilot
position
3. Turn to PILOT/IGN position. Fully press in control
knob while pressing ignitor
button
4. Cont inu e holdi ng do wn
control knob. Repeat igniting ope ra ti on until a ir is
removed
5. Contact local propane/LP
gas company
6. Clean ODS/pilot (see Cleaning and Maintenance, page
16) or replace ODS/pilot
assembly
7. Replace gas regulator
1. Refer to Air for Combustion
and Ventilation requirements
(page 5)
125311-01A 19
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Page 20
OBSERVED PROBLEM
ODS/pilot lights but flame
goes out when control knob
is released
TROUBLESHOOTING
Continued
POSSIBLE CAUSE
1. Cont r ol kn o b not f ully
pressed in
2. Control knob not pressed in
long enough
3. Equipment shutoff valve not
fully open
4. Pilot flame not touchi ng
thermocouple, which allows thermocouple to cool,
causing pilot ame to go
out. This problem could be
caused by one or both of
the following:
A) Low gas pressure
B) Dirty or partially clogged
ODS/pilot
5. Thermocouple connection
loose at control valve
6. Thermocouple damaged
7. Control valve damaged
REMEDY
1. Press in control knob fully
2. After ODS/pilot lights, keep
control knob pressed in 30
seconds
3. Fully open equipment shutoff valve
4. A) Contact local natural or
propane/LP gas company
B) Clean ODS/pilot (see
Cleaning and Maintenance,
page 18) or replace ODS/
pilot assembly
5. Hand tighten until snug,
then tighten 1/4 turn more
6. Replace pilot assembly
7. Replace control valve
Burner does not light after
ODS/pilot is lit
Delayed ignition of burner
Burner backring during combustion
Burner plaque(s) does not
glow
Slight smoke or odor during
initial operation
Heater produces a clicking/
ticking noise just after burner
is lit or shut off
1. Burner orice clogged
2. Inlet gas pressure is too
low
1. Manifold pressure is too
low
2. Burner orice clogged
1. Burner orice is clogged or
damaged
2. Damaged burner
3. Gas regulator defective
1. Plaque damaged
2. Inlet gas pressure is too
low
3. Control knob set between
locked positions
1. Residues from manufactur-
ing processes
1. Met al expa n din g wh ile
heating or contracting while
cooling
www.fmiproducts.com
1. Clean burner (see Cleaning
and Maintenance, page 18)
or replace burner orice
2. Contact loca l natural or
propane/LP gas company
1. Contact loca l natural or
propane/LP gas company
2. Clean burner (see Cleaning
and Maintenance, page 18)
or replace burner orice
1. Clean burner (see Cleaning
and Maintenance, page 18)
or replace burner orice
2. Replace damaged burner
3. Replace gas regulator
1. Replace burner
2. Contact local natural or propane/LP gas company
3. Turn control knob until it
locks at desired setting
1. Problem will stop after a few
hours of operation
1. This is normal with most heaters. If noise is excessive, contact qualied service person
125311-01A20
Page 21
TROUBLESHOOTING
Continued
WARNING: If you smell gas
• Shut off gas supply.
• 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 re department.
IMPORTANT: Operating heater where impurities in air exist may create odors. Cleaning supplies, paint, paint remover, cigarette smoke, cements and glues, new carpet or textiles, etc.,
create fumes. These fumes may mix with combustion air and create odors.
OBSERVED PROBLEM
White powder residue forming
within burner box or on adjacent walls or furniture
POSSIBLE CAUSE
1. When heated, vapors from
furniture polish, wax, carpet
cleaner, etc., may turn into
white powder residue
REMEDY
1. Turn heater off when using
furniture polish, wax, carpet
cleaners or similar products
Heater shuts off in use (ODS
operates)
Heater produces unwanted
odors
Gas odor even when control
knob is in OFF position
Gas odor during combustion
Heater produces a whistling
noise when burner is lit
1. No t eno ug h fresh air i s
available
2. Low line pressure
3. ODS/pilot is partially clogged
1. Heater burning vapors from
paint, hair spray, glues, etc. See
IMPORTANT statement above
2. Low fuel supply (propane/
LP gas only)
3. Gas leak. See Warning
statement at top of page
1. Gas leak. See Warning
statement at top of page
2. Control valve defective
1. Forei gn matter b etween
control valve and burner
2. Gas leak. See Warning
statement at top of page
1. Air in gas line
2. Air passageways on heater
blocked
3. Dirty or partially clogged
burner orice
1. Open window and/or door for
ventilation
2. Contact local natural or propane/LP gas company
3. Clean ODS/pilot (see Cleaning
and Maintenance, page 17)
1. Ventilate room. Stop using
odor causing products while
heater is running
2. Rell supply tank
3. Locate and correct all leaks
(see Checking Gas Connec-
tions, page 12)
1. Locate and correct all leaks
(see Checking Gas Connec-
tions, page 12)
2. Replace control valve
1. Take apart gas tubing and
remove foreign matter
2. Locate and correct all leaks
(see Checking Gas Connec-
tions, page 12)
1. Operate burner until air is
removed from line. Have gas
line checked by local natural
or propane/LP gas company
2. Observe minimum installation clearances (see Figure
4, page 8)
3. Clean burner (see Cleaning
and Maintenance, page 17)
or replace burner orice
125311-01A 21
www.fmiproducts.com
Page 22
PARTS
11
8
5
6
7
4
3
1
2
16
10
12
13
9
17
14
15
19
18
20
Replacement
may vary from
grill shown
See page 24
See Pages
24 and 25
Actual part
may vary from
illustration
CABINET BODY MODELS
GWRP16C, GW R N 1 8 C , GWRP26C, GW R N 3 0 C , GWRP16TC,
GWRN18TC, GWRP26TC, GWRN30TC, VSHRP16M, VSHRP16T,
VSHRN18M, VSHRN18T, VSHRP26M, VSHRP26T, VSHRN30M, AND
VSHRN30T
www.fmiproducts.com
125311-01A22
Page 23
This list contains replaceable parts used in your heater. When ordering parts, follow the
PARTS
instructions listed under Replacement Parts on page 24 of this manual.
KEY
NO. PART NO. DESCRIPTION QTY.
1 107673-01 Front Panel • • • • 1
107676-01 Front Panel • • • • 1
2 103476-01 Grill Guard • • • • 1
103476-02 Grill Guard • • • • 1
3 ** Apron • • • • • • • • 1
4 104103-07 Reector • • • • 1
104103-09 Reector • • • • 1
5 ** Cabinet Back Panel • • • • • • • • 1
6 097159-04 Piezo Ignitor • • • • • • • • 1
7 099066-02 Mounting Bracket • • • • • • • • 1
098271-03 Ignitor Cable • • • • • • • • 1
9 107896-01 Heat Sheild • • • • 1
107896-02 Heat Sheild • • • • 1
10 111421-01 Snap Bushing 1
11 107889-01 Base Feet • • • • • • • • 2
12 099415-18 Gas Regulator LP • • • • 1
099415-19 Gas Regulator NG • • • • 1
13 104819-02 Regulator Bracket • • • • • • • • 1
14 098522-24 Thermostat Gas Valve • • • • 1
15 102394-02 T-stat Valve Mounting Bracket • • • • 1
16 103256-02 Inlet Tube • • • • 1
17 118721-03 Upper Bafe • • 1
118721-04 Upper Bafe • • 1
18 098462-01 Control Rod Assembly • • • • 1
19 098325-01 Roll Pin • • • • 1
20 098354-03 Control Knob • • • • 1
PARTS AVAILABLE - NOT SHOWN
100642-03 Hardware Assembly • • • • 1
** Not a eld replaceable part.
GWRP26C, VSHRP26M
GWRP16C, VSHRP16M
GWRN30C, VSHRN30M
GWRP16TC, VSHRP16T
GWRN18C, VSHRN18M
GWRN18TC, VSHRN18T
GWRP26TC, VSHRP26T
GWRN30TC, VSHRN30T
125311-01A 23
www.fmiproducts.com
Page 24
PARTS
5
8
7
10
9
4
4
1
2
6
3
11
BURNER ASSEMBLY
This list contains replaceable parts used in your heater. When ordering parts, follow the
instructions listed under Replacement Parts on page 27 of this manual.
KEY
NO. PART NO. DESCRIPTION QTY.
GWRP16C, VSHRP16M
GWRN18C, VSHRN18M
1 120630-02 ODS/Pilot LP • 1
120630-03 ODS/Pilot NG • 1
2 098200-03 Control Valve Bracket • • 1
3 105051-01 Pilot Tubing • • 1
4 099218-08 Burner • • 1
5 098508-01 Valve Retainer Nut • • 1
6 099056-24 Orice - Plaque A • 1-2
099056-25 Orice - Plaque A • 1-2
7 099056-01 Orice - Plaque B • 1
099056-02 Orice - Plaque B • 1
8 103844-01 Control Valve • • 1
9 103352-03 Tubing - Valve to Plaque • • 1
10 103352-04 Tubing - Valve to Plaque • • 1
11 107660-01 Tube, Inlet • • 1
www.fmiproducts.com
125311-01A24
Page 25
PARTS
5
6
8
10
11
7
11
12
9
4
3
1
2
6
3
9
BURNER ASSEMBLY
This list contains replaceable parts used in your heater. When ordering parts, follow the
instructions listed under Replacement Parts on page 27 of this manual.
KEY
NO. PART NO. DESCRIPTION QTY.
GWRP26C, VSHRP26M
GWRN30C, VSHRN30M
1 120630-02 ODS/Pilot LP • 1
120630-03 ODS/Pilot NG • 1
2 098200-03 Control Valve Bracket • • 1
3 105050-02 Pilot Tubing • • 1
4 099218-09 Burner • • 1
5 098508-01 Valve Retainer Nut • • 1
6 099056-24 Orice - Plaque A or C • 2
099056-25 Orice - Plaque A or C • 2
7 099056-01 Orice - Plaque B • 1
099056-02 Orice - Plaque B • 1
8 100747-01 Control Valve • • 1
9 107660-03 Inlet Tube
10 103844-01 Tubing - Valve to Plaque • • 1
11 103352-05 Tubing - Valve to Plaque • • 1
12 103352-04 Tubing - Valve to Plaque • • 1
125311-01A 25
www.fmiproducts.com
Page 26
PARTS
5
6
4
3
2
1
5
6
4
3
2
1
5
4
6
3
2
1
5
BURNER ASSEMBLY
This list contains replaceable parts used in your heater. When ordering parts, follow the
instructions listed under Replacement Parts on page 27 of this manual.
KEY
NO. PART NO. DESCRIPTION QTY.
1 120630-02 ODS/Pilot LP • 1
120630-03 ODS/Pilot NG • 1
2 099387-11 Pilot Tubing • • 1
3 104818-03 Outlet Tubing-
Valve to Burner
4 099218-08 Burner • • 1
5 099056-24 Orice - Plaque A • 1-2
099056-25 Orice - Plaque A • 1-2
6 099056-01 Orice - Plaque B • 1
099056-02 Orice - Plaque B • 1
GWRP16TC, VSHRP16T
GWRN18TC, VSHRN18T
• • 1
KEY
NO. PART NO. DESCRIPTION QTY.
GWRP26TC, VSHRP26T
GWRN30TC, VSHRN30T
1 120630-02 ODS/Pilot LP • 1
120630-03 ODS/Pilot NG • 1
2 099387-3 Pilot Tubing • • 1
Valve to Burner
3 104818-04 Outlet Tubing-
• • 1
4 099218-08 Burner • • 1
5 099056-24 Orice - Plaque A or C • 1-2
www.fmiproducts.com
099056-25 Orice - Plaque A or C • 1-2
6 099056-01 Orice - Plaque B • 1
099056-02 Orice - Plaque B • 1
125311-01A26
Page 27
ACCESSORIES
Purchase these heater accessories from your
local dealer. If they can not supply these
accessories, either contact your nearest
Parts Central or call FMI PRODUCTS, LLC
at 1-866-328-4537 for information. You can
also write to the address listed on the back
page of this manual.
REPLACEMENT PARTS
Note: Use only original replacement parts.
This will protect your warranty coverage for
parts replaced under warranty.
Contact authorized dealers of this product.
If they can’t supply original replacement
pa r t(s ), ca l l FMI PR ODU CTS , LLC at
1-866-328-4537.
FAN KIT - PP100
For all models. Provides better heat distri-
bution. Complete installation and operating
instructions
included.
Thermostatically-controlled, blower turns itself
on and off as required.
When calling, have ready:
• your name
• your address
• model and serial numbers of your heater
• how heater 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.
TECHNICAL SERVICE
You may have further questions about installation, operation or troubleshooting. If so, contact
FMI PRODUCTS, LLC at 1-866-328-4537.
When calling please have your model and
serial numbers of your heater ready.
You can also visit our web site at
www.fmiproducts.com.
125311-01A 27
www.fmiproducts.com
When Gas Pressure Is Too Low
• pilot will not stay lit
• burners will have delayed ignition
• heater will not produce specied heat
• propane/LP gas supply may be low
You may feel your gas pressure is too low. If
so, contact your local natural or propane/LP
gas supplier.
SERVICE HINTS
Page 28
WARRANTY
kEEP THIS WARRANTY
Model (
located on product or identication tag
Serial No. (
located on product or identication tag
Date Purchased __________________________
Keep receipt for warranty verication.
FMI PRODUCTS, LLC LIMITED WARRANTIES
Standard Warranty: FMI PRODUCTS, LLC warrants this new product and any parts thereof to be free from defects
in material and workmanship for a period of four (4) years from the date of rst purchase from an authorized dealer
provided the product has been installed, maintained and operated in accordance with FMI PRODUCTS, LLC’s
warnings and instructions.
For products purchased for commercial, industrial or rental usage, this warranty is limited to 90 days from the date
of rst purchase.
Limited Warranty: FMI PRODUCTS, LLC warrants factory reconditioned products and any parts thereof to be
free from defects in material and workmanship for 30 days from the date of rst purchase from an authorized dealer
provided the product has been installed, maintained and operated in accordance with FMI PRODUCTS, LLC’s
warnings and instructions.
The following terms apply to all of the above warranties:
Always specify model number and serial number when contacting the manufacturer. To make a claim under this
warranty the bill of sale or other proof of purchase must be presented.
This warranty is extended only to the original retail purchaser when purchased from an authorized dealer, and only
when installed by a qualied installer in accordance with all local codes and instructions furnished with this product.
This warranty covers the cost of part(s) required to restore this product to proper operating condition and an allowance for labor when provided by a FMI PRODUCTS, LLC Authorized Service Center or a provider approved by
FMI PRODUCTS, LLC. Warranty parts must be obtained through authorized dealers of this product and/or FMI
PRODUCTS, LLC who will provide original factory replacement parts. Failure to use original factory replacement
parts voids this warranty.
Travel, handling, transportation, diagnostic, material, labor and incidental costs associated with warranty repairs,
unless expressly covered by this warranty, are not reimbursable under this warranty and are the responsibility of
the owner.
Excluded from this warranty are products or parts that fail or become damaged due to misuse, accidents, improper
installation, lack of proper maintenance, tampering, or alteration(s).
This is FMI PRODUCTS, LLC’s exclusive warranty, and to the full extent allowed by law; this express warranty
excludes any and all other warranties, express or implied, written or verbal and limits the duration of any and all
implied warranties, including warranties of merchantability and tness for a particular purpose to four (4) years on
new products and 30 days on factory reconditioned products from the date of rst purchase. FMI PRODUCTS, LLC
makes no other warranties regarding this product.
FMI PRODUCTS, LLC’s liability is limited to the purchase price of the product, and FMI PRODUCTS, LLC shall not
be liable for any other damages whatsoever under any circumstances including indirect, incidental, or consequential
damages.
Some states do not allow limitations on how long an implied warranty lasts or the exclusion or limitation of incidental
or consequential damages, so the above limitation or exclusion may not apply to you.
This warranty gives you specic legal rights, and you may also have other rights which vary from state to state.
For information about this warranty contact:
Factory Reconditioned Products
Terms Common to All Warranties
) _____________________________
) __________________________
New Products
2701 S. Harbor Blvd.
Santa Ana, CA 92704
1-866-328-4537
www.fmiproducts.com
125311-01
Rev. A
05/10
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