Empire Comfort Systems VFHS-20R-1 User manual

Page 1VFHS-20/10
INSTALLATION INSTRUCTIONS
AND
OWNER'S MANUAL
UNVENTED
GAS FIREPLACE
MODELS
VFHS-20R-1
VFHS-20/10T-1
EFFECTIVE DATE
MAY, 2001
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
vicinityofthisoranyotherappliance.
— WHATTODOIFYOUSMELLGAS
•Do not try to light any appliance.
•Donottouchanyelectricalswitch;
donotuseanyphoneinyourbuild-
ing.
•Immediatelycallyourgassupplier
from a neighbor's phone. Follow
the gas supplier's instructions.
•If you cannot reach your gas sup-
plier, call the fire department.
— Installation and service must be per-
formedbyaqualifiedinstaller,service
agency or the gas supplier.
This is an unvented gas-fired heater. It
uses air (oxygen) from the room in which
itisinstalled.Provisionsforadequatecom-
bustion and ventilation air must be pro-
vided. Refer to page 6.
WARNING:Ifnotinstalled,operatedand
maintainedinaccordancewiththemanu-
facturer'sinstructions,thisproductcould
expose you to substances in fuel or from
fuelcombustionwhichcancause deathor
serious illness.
WATER VAPOR: ABY-PRODUCT OF
UNVENTED ROOM HEATERS
Water vapor is a by-product of gas
combustion. An unvented room heater
produces approximately one (1) ounce
(30ml) of water for every 1,000 BTU's
(.3KW's) of gas input per hour. Refer to
page 6.
R-5703

Page 2 VFHS-20/10
SECTION PAGE
Important Safety Information .................................................................................................................... 3
Safety Information for Users of LP Gas..................................................................................................... 4
Introduction ................................................................................................................................................ 5
Specifications ............................................................................................................................................. 6
Water Vapor: A By-Product of Unvented Room Heaters .......................................................................... 6
Provisions for Adequate Combustion and Ventilation Air.....................................................................6-7
Gas Supply.................................................................................................................................................. 8
Clearances................................................................................................................................................... 9
Combustible Material ................................................................................................................................ 9
Installation of Fireplace Into Mantel ........................................................................................................ 10
Built-In Fireplace Installation................................................................................................................... 11
Log Placement .......................................................................................................................................... 12
Placement of Glowing Embers ( Rock Wool) .......................................................................................... 12
Operation Instructions/Flame Appearance ............................................................................................... 13
VFHS-20R Lighting Instructions ............................................................................................................. 14
VFHS-20/10T Lighting Instructions ........................................................................................................ 15
Pilot Flame Characteristics..................................................................................................................16-17
Main Burner and Thermostat Operation................................................................................................... 17
VFHS-20T Conversion to VFHS-10T for Bedroom Installation ............................................................. 17
Wiring....................................................................................................................................................... 18
Troubleshooting........................................................................................................................................ 19
Parts List ................................................................................................................................................... 20
How to Order Repair Parts ....................................................................................................................... 20
Parts View ................................................................................................................................................ 21
Optional Brick Liner Installation Instructions.......................................................................................... 22
Optional Blower Installation Instructions............................................................................................23-26
Accessory Parts List and Parts View........................................................................................................ 27
Service Notes............................................................................................................................................ 28
TABLE OF CONTENTS

Page 3VFHS-20/10
When used without adequate combustion and ventilation air,
heater may give off CARBON MONOXIDE, an odorless,
poisonous gas.
Do not install heater until all necessary provisions are
made for combustion and ventilation air. Consult the
written instructions provided with the heater for infor-
mation concerning combustion and ventilation air. In
the absence of instructions, refer to the National Fuel
Gas Code, ANSI Z223.1, Section 5.3 or applicable local
codes.
This heater is equipped with a PILOT LIGHT SAFETY
SYSTEMdesignedtoturnofftheheaterifnotenoughfreshair
is available.
DO NOT TAMPER WITH PILOT LIGHT SAFETY
SYSTEM!
If heater shuts off, do not relight until you provide fresh air.
If heater keeps shutting off, have it serviced. Keep burner and
control compartment clean.
CARBONMONOXIDE POISONINGMAYLEAD
TO DEATH.
Early signs of carbon monoxide poisoning resemble the flu,
with headache, dizziness and/or nausea. If you have these
signs, heater may not be working properly. Get fresh air at
once! Have heater serviced.
Somepeople—pregnantwomen,personswithheartorlung
disease, anemia, those under the influence of alcohol , those
at high altitudes — are more affected by carbon monoxide
than others.
Thepilotlightsafetysystemsensesthedepletionofoxygenat
its location. If this heater is installed in a structure having a
highverticaldimension,thepossibilityexiststhattheoxygen
supplyat thehigherlevelswillbelessthan thatattheheater.
Inthis typeof application,a fantocirculatethestructureair
willminimizethiseffect.Theuseofthisfanwillalsoimprove
the comfort level in the structure. When a fan is used to
circulate air, it should be located so that the air flow is not
directed at the burner.
WARNING
• Anunvented roomheater havingan input ratingofmore
than6,000Btuperhourshallnotbeinstalledinabathroom.
• An unvented room heater having an input rating of more
than 10,000 Btu per hour shall not be installed in a
bedroom or bathroom.
• Duetohightemperatures,theapplianceshouldbelocated
out of traffic and away from furniture and draperies.
• Children and adults should be alerted to the hazard of
high surface temperature and should stay away to avoid
burns or clothing ignition.
• Youngchildrenshouldbecarefullysupervisedwhenthey
are in the same room with the appliance.
• Do not place clothing or other flammable material on or
near the appliance.
• Installation and repair should be done by a QUALIFIED
SERVICE PERSON. This appliance should be inspected
before use and at least annually by a professional service
person. More frequent cleaning may be required due to
excessive lint from carpeting, bedding materials, etc. It is
imperative that control compartments, burners and
circulating air passageways of the appliance be kept
clean.
• DO NOT use this fireplace if any part has been under
water. Immediately call a qualified service technician to
inspectthefireplaceandtoreplaceanypartofthecontrol
system and any gas control which has been under water.
• Youmustoperatefireplacewithfireplacescreenclosedin
place. Do not close glass doors while operating heater.
• Do not place trash, logs or other articles on the log set
during operation.
• Duringmanufacturing,fabricatingandshipping,various
componentsofthisappliancearetreatedwithcertainoils,
films or bonding agents. These bonding agents are not
harmful but may produce annoying smoke and smells as
they are burned off during initial operation of the
appliance. This is a normal temporary occurrence. A
window should be opened during the initial bake out
period.
• Correct installation of the ceramic fiber logs, proper
locationofthefireplaceandannualcleaningarenecessary
toavoidpotentialproblemswithsooting.Sooting,resulting
from improper installation or operation, can settle on
surfacesoutsidethe fireplace. Seeinstructionsforproper
installation.
• WARNING: Do not allow fans to blow directly into the
fireplace.Avoidanydraftsthatalterburnerflamepatterns.
• WARNING: Do not use a blower insert, heat exchanger
insert or other accessory not approved for use with this
heater.
• WARNING!Thisfireplace needs freshairfor ventilation
to operate properly. This fireplace has an ODS (oxygen
depletion sensor) which will shut off the fireplace if
adequate fresh air is not available.
• Keep appliance area clear and free from combustible
materials, gasoline and other flammable vapors and
liquids.
THIS IS A HEATING APPLIANCE
IMPORTANT SAFETY INFORMATION

Page 4 VFHS-20/10
Somepeoplecannotsmellwell.Somepeoplecannotsmellthe
odorofthechemicalputintothegas.Youmustfindoutifyou
cansmell theodorantinpropane.Smoking candecreaseyour
ability to smell. Being around an odor for a time can affect your
sensitivity or ability to detect that odor. Sometimes other odors
inthe areamask thegas odor.People maynot smellthe gasodor
or their minds are on something else. Thinking about smelling a
gas odor can make it easier to smell.
The odorant in LP-gas is colorless, and it can fade under
some circumstances. For example, if there is an underground
leak,themovement ofthe gasthrough soilcanfilterthe odorant.
OdorantsinLP-Gasalsoaresubjecttooxidation.Thisfadingcan
by point with the members of your household. Someday
whentheremaynotbeaminutetolose,everyone'ssafetywill
depend on knowing exactly what to do. If, after reading the
followinginformation,you feel youstillneed more informa-
tion, please contact your gas supplier.
Propane (LP-Gas) is a flammable gas which can cause fires
and explosions. In its natural state, propane is odorless and
colorless.You maynotknowallthefollowingsafety precau-
tions which can protect both you and your family from an
accident. Read them carefully now, then review them point
occur if there is rust inside the storage tank or in iron gas pipes.
The odorant in escaped gas can adsorb or absorb onto or into
walls, masonry and other materials and fabrics in a room. That
will take some of the odorant out of the gas, reducing its odor
intensity.
LP-Gasmaystratifyinaclosedarea,andtheodorintensitycould
vary at different levels. Since it is heavier than air, there may be
more odor at lower levels. Always be sensitive to the slightest
gas odor. If you detect any odor, treat it as a serious leak.
Immediately go into action as instructed earlier.
•Learntorecognize theodorof LP-gas.Yourlocal LP-Gas
Dealercangiveyou a"ScratchandSniff"pamphlet.Useit to
findoutwhatthepropaneodorsmellslike.Ifyoususpectthat
yourLP-Gashas aweak or abnormalodor, callyourLP-Gas
Dealer.
• If you are not qualified, do not light pilot lights, perform
service, or make adjustments to appliances on the LP-Gas
system.Ifyouarequalified,consciouslythinkabouttheodor
ofLP-Gas prior toand whilelighting pilotlights orperform-
ing service or making adjustments.
• Sometimes a basement or a closed-up house has a musty
smell that can cover up the LP-Gas odor. Do not try to light
pilot lights, perform service, or make adjustments in an area
where the conditions are such that you may not detect the
odor if there has been a leak of LP-Gas.
• Odor fade, due to oxidation by rust or adsorption on walls of
new cylinders and tanks, is possible. Therefore, people
should be particularly alert and careful when new tanks or
cylinders are placed in service. Odor fade can occur in new
tanks, or reinstalled old tanks, if they are filled and allowed
to set too long before refilling. Cylinders and tanks which
have been out of service for a time may develop internal rust
which will cause odor fade. If such conditions are suspected
to exist, a periodic sniff test of the gas is advisable. If you
have any question about the gas odor, call your LP-gas
dealer. A periodic sniff test of the LP-gas is a good safety
measure under any condition.
• If, at any time, you do not smell the LP-Gas odorant and you
thinkyoushould,assumeyouhavealeak.Thentakethesame
immediateactionrecommendedabovefortheoccasionwhen
you do detect the odorized LP-Gas.
• If you experience a complete "gas out," (the container is
under no vapor pressure), turn the tank valve off immedi-
ately.Ifthecontainervalveislefton,thecontainermaydraw
in some air through openings such as pilot light orifices. If
this occurs, some new internal rusting could occur. If the
valve is left open, then treat the container as a new tank.
Always be sure your container is under vapor pressure by
turningitoffatthecontainerbeforeitgoescompletelyempty
or having it refilled before it is completely empty.
• Do not operate electric switches, light matches, use your
phone. Do not do anything that could ignite the gas.
• Geteveryoneoutof thebuilding, vehicle,trailer,orarea.Do
that IMMEDIATELY.
• Close all gas tank or cylinder supply valves.
• LP-Gas is heavier than air and may settle in low areas such
as basements. When you have reason to suspect a gas leak,
keep out of basements and other low areas. Stay out until
firefighters declare them to be safe.
• Useyourneighbor'sphoneand callatrained LP-Gasservice
person and the fire department. Even though you may not
continuetosmellgas,donotturnonthegasagain.Donotre-
enter the building, vehicle, trailer, or area.
•Finally, let the service man and firefighters check for
escaped gas. Have them air out the area before you return.
Properly trained LP-Gas service people should repair the
leak, then check and relight the gas appliance for you.
SOME POINTS TO REMEMBER
NO ODOR DETECTED - ODOR FADE
LP-GAS WARNING ODOR
If a gas leak happens, you should be able to smell the gas because of the odorant put in the LP-Gas.
That's your signal to go into immediate action!
SAFETY INFORMATION FOR USERS OF LP-GAS

Page 5VFHS-20/10
General Information
This series is design certified in accordance with American
National Standard Z21.11.2b-1998 by the Canadian Standards
AssociationLaboratoriesasanUnventedRoomHeaterandshould
be installed according to these instructions.
Any alteration of the original design, installed other than as
shownintheseinstructionsorusewithatypeofgasnotshown
on the rating plate is the responsibility of the person and
company making the change.
Important
All correspondence should refer to complete Model No., Serial
No. and type of gas.
Attention: Duringinitialuseof ceramic logyouwilldetect an
odor as the ceramic log is cured. Also, during the curing
process the ceramic log will burn with a yellow flame.
Notice: Duringinitialfiringofthisunit,itspaintwillbakeout,and
smoke will occur. To prevent triggering of smoke alarms, venti-
late the room in which the unit is installed.
Installation on Rugs and Tile
If this appliance is installed directly on carpeting, tile or other
combustible material other than wood flooring the appliance
shall be installed on a metal or wood panel extending the full
width and depth of the appliance.
The base referred to above does not mean the fire-proof base as
usedonwoodstoves. Theprotectionisforrugsthatareextremely
thick and light colored tile.
Solid-fuelsshallnotbeburnedinafireplacewhereanunvented
room heater is installed.
Qualified Installing Agency
Installation and replacement of gas piping, gas utilization equip-
ment or accessories and repair and servicing of equipment shall
be performed only by a qualified agency. The term "qualified
agency" means any individual, firm, corporation or company
which either in person or through a representative is engaged in
and is responsible for (a) the installation or replacement of gas
piping or (b) the connection, installation, repair or servicing of
equipment, who is experienced in such work, familiar with all
precautions required and has complied with all the requirements
of the authority having jurisdiction.
The installation must conform with local codes or, in the absence
of local codes, with the National Fuel Gas Code, ANSI Z223.1.*
*Available from the American National Standards Institute, Inc. 1430 Broad-
way, New York, N.Y. 10018.
High Altitudes
For altitudes/elevations above 2,000 feet (610m), ratings should
be reduced at the rate of 4 percent for each 1,000 feet (305m)
above sea level. Contact the manufacturer or your gas company
before changing spud/orifice size.
Instructions to Installer
1. Installer must leave instruction manual with owner after
installation.
2. Installer must have owner fill out and mail warranty card
supplied with unvented room heater.
3. Installershouldshowownerhowtostartandoperateunvented
room heater.
Always consult your local Building Department regarding regu-
lations, codes or ordinances which apply to the installation of an
unvented room heater.
Thisappliance maybe installedinan aftermarket*manufactured
(mobile) home, where not prohibited by state or local codes.
*Aftermarket: Completion of sale, not for purpose of resale,
from the manufacturer.
Thisappliance isonlyfor usewith thetypeof gasindicated onthe
rating plate. This appliance is not convertible for use with other
gases.
Well Head Gas Installations
Somenaturalgasutilitiesuse"wellhead"gas.Thismayaffectthe
Btu output of the unit. Contact the gas company for the heating
value. Contact the manufacturer or your gas company before
changing spud/orifice size.
WARNING: ANY CHANGE TO THIS HEATER OR ITS
CONTROLS CAN BE DANGEROUS.
Improper installation or use of the heater can cause
serious injury or death from fire, burns, explosion or
carbon monoxide poisoning.
Operation
Thisunventedfireplacerequiresnooutsideventing.Thisunvented
fireplace is designed for vent-free operation with flue damper
closed. State and local codes in some areas prohibit the use of
unvented fireplace.
VFHS-20R Millivolt Control
The valve regulator controls the burner pressure which should be
checked at the pressure test point. Turn captured screw counter
clockwise 2 or 3 turns and then place tubing to pressure gauge
over test point (Use test point “A” closest to control knob).After
taking pressure reading, be sure and turn captured screw clock-
wise firmly to re-seal. Do not over torque. Check for gas leaks.
Millivolt System, VFHS-20R Only
When you ignite the pilot, the thermocouple produces millivolts
(electrical current) which energizes the magnet in the gas valve.
After 30 seconds to 1 minute time period you can release the gas
control knob and the pilot will stay ON. Allow your pilot flame
tooperateanadditionalone(1)totwo(2)minutesbeforeyouturn
thegascontrolknobfromthePILOTpositiontotheONposition.
This time period allows the millivolts (electrical current) to
build-up to a sufficient level allowing the gas control to operate
properly.
INTRODUCTION

Page 6 VFHS-20/10
Model VFHS-20R VFHS-20/10T
Input Maximum 20,000 20,000/10,000
Minimum 14,000 7,000/7,000
Minimum Firebox Opening
Height 26 1/2" 26 1/2"
Depth 11" 11"
Front Width 22 3/4" 22 3/4"
Rear Width 17 1/4" 17 1/4"
Gas Inlet 3/8" 3/8"
Accessories
VFS-BK Automatic Blower
EHL-24-1 Brick Liner
SPECIFICATIONS
Accessories For VFHS-20R Only
FRBC-1 Battery Operated Remote Control
FRBTC-1 Battery Operated Remote Control
w/Thermostat
FREC-1 Electric Remote Control
FWS-1 Wall Switch
GWSG-T Wall Thermostat, Millivolt
Mantel Accessories
EHM24-U Mantel - Unfinished
EHM24-OF Mantel - Oak
EHM24-CU Corner Mantel - Unfinished
EHM24-COF Corner Mantel - Oak
Water vapor is a by-product of gas combustion. An unvented
room he osphere experienced during cold weather.
Unventedroom heaters arerecommended assupplemental heat(a
room) rather than a primary heat source (an entire house). In most
supplemental heat applications, the water vapor does not create a
problem. In most applications, the water vapor enhances the low
humidity atmosphere experienced during cold weather.
The following steps will help insure that water vapor does not
become a problem.
1. Besuretheheaterissizedproperlyfortheapplication,including
ample combustion air and circulation air.
2. Ifhighhumidityisexperienced, adehumidifiermaybeusedto
help lower the water vapor content of the air.
3. Donotuseanunventedroomheaterastheprimaryheatsource.
This heater shall not be installed in a confined space or unusually
tightconstruction unlessprovisionsareprovidedfor adequatecom-
bustion and ventilation air.
The National Fuel Gas Code defines a confined space as a space
whose volume is less than 50 cubic feet per 1,000 Btu per hour
(4.8m3per kw) of the aggregate input rating of all appliances in-
stalled in that space and an unconfined space as a space whose
volume is not less than 50 cubic feet per 1,000 Btu per hour (4.8
m3per 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 unconfined space.
Unusually Tight Construction
Theairthatleaksarounddoorsandwindowsmayprovideenough
freshairforcombustionandventilation.However,inbuildingsof
unusually tight construction, you must provide additional fresh
air.Unusually tight construction is defined as construction
where:
a. Wallsandceilingsexposedtotheoutsideatmospherehave
acontinuouswatervaporretarderwitharatingofoneperm
or less with openings gasketed or sealed, and
b. Weatherstripping 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
floors,betweenwall-ceilingjoints,betweenwallpanels,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.
Determining if You Have a Confined or Unconfined Space
Use this worksheet to determine if you have a confined or
unconfined space.
Space:Includestheroominwhichyouwillinstallheaterplusany
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 16 ft. (length) x 10 ft. (width) x 8 ft.
(ceiling height) = 1,280 cu. ft. (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. Divide the space volume by 50 cubic feet to determine the
maximum BTU/Hr the space can support.
(volume of space) ÷50 cu. ft. = (maximum
BTU/Hr the space can support)
Example: 1,280 cu. ft. (volume of space) ÷50 cu. ft. = 25.6 or
25,600 (maximum BTU/Hr the space can support)
WATER VAPOR:A BY-PRODUCT OF UNVENTED ROOM HEATERS
PROVISIONS FOR ADEQUATE COMBUSTION & VENTILATION AIR

Page 7VFHS-20/10
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 fireplace logs BTU/Hr
Other gas appliances* + BTU/Hr
Total = BTU/Hr
Example: Vented gas heater 20,000 BTU/Hr
Vent-free heater + 18,000 BTU/Hr
Total = 38,000 BTU/Hr
*Donotincludedirect-vent gasappliances.Direct ventdraws
combustion air from the outdoors and vents to the outdoors.
4. Compare the maximum BTU/Hr the space can support with
the actual amount of BTU/Hr used.
BTU/Hr (maximum the space can support)
BTU/Hr (actual amount of BTU/Hr used)
Example:
25,600 BTU/Hr (maximum the space can support)
38,000 BTU/Hr (actual amount of BTU/Hr used)
Warning: If the area in which the heater may be operated is
smallerthanthatdefinedasanunconfinedspaceorifthebuilding
is of unusually tight construction, provide adequate combustion
and ventilation air by one of the methods described in the
National Fuel Gas Code, ANSI Z223.1, Section 5.3 or applicable
local codes.
The space in the above example is a confined 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. Reworkworksheet, addingthespaceofan adjoiningroom. If
theextraspaceprovidesanunconfinedspace,removedoorto
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.
C. Install a lower BTU/Hr heater, if lower BTU/Hr size makes
room unconfined.
If the actual BTU/Hr used is less than the maximum BTU/Hr the
space can support, the space is an unconfined space. You will
need no additional fresh air ventilation.
WARNING: You must provide additional ventilation
air in a confined space.
VENTILATION AIR
Ventilation Air From Inside Building (Figure 1)
This fresh air would come from an adjoining unconfined space.
When ventilating to an adjoining unconfined space, you must
provide two permanent openings: one within 12" of the ceiling
and one within 12" of the floor on the wall connecting the two
spaces (see options 1 and 2, Figure 1). You can also remove door
intoadjoiningroom(seeoption3,Figure1).Eachventilationgrill
oropening shallhave aminimum freeareaofonesquareinchper
1,000 BTUH of the total input rating of the gas equipment in the
confined space.
Figure 1
WARNING: Rework worksheet, adding the space of the
adjoining unconfined space. The combined spaces must
have enough fresh air to supply all appliances in both
spaces.
Ventilation Air From Outdoors (Figure 2)
Provide extra fresh air by using ventilation grills or ducts. You
must provide two permanent openings: one within 12" of the
ceilingandonewith12"ofthefloor.Connecttheseitemsdirectly
to the outdoors or spaces open to the outdoors. These spaces
include attics and crawl spaces. In most cases for direct
communicationwiththeoutdoorsordirectcommunicationthrough
a vertical duct a free area opening of one square inch per 4,000
BTUH of heater input rating for each grill. If a horizontal duct is
used, a grill free area or duct opening shall have a free area
openingofonesquareinchper2,000BTUHforeachgrill.Follow
the National Fuel Code NFPA 54/ANSI Z223.1, Section 5.3 Air
for Combustion and Ventilation for required size of ventilation
grills or ducts.
IMPORTANT:Donotprovide openingsforinletoroutlet airinto
attic if attic has a thermostat-controlled power vent. Heated air
entering the attic will activate the power vent.
Figure 2

Page 8 VFHS-20/10
GAS SUPPLY
Checkalllocalcodes forrequirements,especially forthesize and
type of gas supply line required.
Recommended Gas Pipe Diameter
Pipe Length Schedule 40 Pipe Tubing, Type L
(Feet) Inside Diameter Outside Diameter
Nat. L.P. Nat. L.P.
0-10 1/2" 3/8" 1/2" 3/8"
1.3 cm 1.0 cm 1.3 cm 1.0 cm
10-40 1/2" 1/2" 5/8" 1/2"
1.3 cm 1.3 cm 1.6 cm 1.3 cm
40-100 1/2" 1/2" 3/4" 1/2"
1.3 cm 1.3 cm 1.9 cm 1.3 cm
100-150 3/4" 1/2" 7/8" 3/4"
1.9 cm 1.3 cm 2.2 cm 1.9 cm
Note:Neveruseplasticpipe.Checktoconfirmwhetheryourlocal
codes allow copper tubing or galvanized.
Note: Since some municipalities have additional local codes, it is
always best to consult your local authority and installation code.
Installing a New Main Gas Cock
Each appliance should have its own manual gas cock.
A manual main gas cock should be located in the vicinity of the
unit. Where none exists, or where its size or location is not
adequate,contactyourlocalauthorizedinstallerforinstallationor
relocation.
Compoundsusedonthreadedjointsofgaspipingshallberesistant
to the action of liquefied petroleum gases. The gas lines must be
checkedforleaksbytheinstaller.Thisshouldbedonewithasoap
solution watching for bubbles on all exposed connections, and if
unexposed, a pressure test should be made.
Neveruseanexposedflametocheckforleaks.Appliancemust
bedisconnectedfrompiping at inletofcontrol valve andpipe
capped or plugged for pressure test. Never pressure test with
appliance connected; control valve will sustain damage!
A gas valve and ground joint union should be installed in the gas
line upstream of the gas control to aid in servicing. It is required
bytheNationalFuelGasCodethatadriplinebeinstallednearthe
gas inlet. This should consist of a vertical length of pipe tee
connected into the gas line that is capped on the bottom in which
condensation and foreign particles may collect.
The use of the following gas connectors is recommended:
— ANS Z21.24 Appliance Connectors of Corrugated Metal
Tubing and Fittings
— ANS Z21.45 Assembled Flexible Appliance Connectors of
Other Than All-Metal Construction
The above connectors may be used if acceptable by the authority
having jurisdiction.
Pressure Testing of the Gas Supply System
1. To check the inlet pressure to the gas valve, a 1/8" (3mm)
N.P.T.pluggedtapping,accessiblefortestgaugeconnection,
must be placed immediately upstream of the gas supply
connection to the appliance.
2. The appliance and its individual shutoff valve must be
disconnected from the gas supply piping system during any
pressure testing of that system at test pressures in excess of
1/2 psig (3.5 kPa).
3. The appliance must be isolated from the gas supply piping
systemby closingitsindividual manualshutoffvalveduring
any pressure testing of the gas supply piping system at test
pressures equal to or less than 1/2 psig (3.5 kPa).
Figure 3
Attention! If one of the above procedures results in pressures in
excessof 1/2psig(14" w.c.)(3.5kPa) ontheappliance gasvalve,
it will result in a hazardous condition.
Checking Manifold Pressure
VFHS-20R Natural gas will have a manifold pressure of
approximately 3.5" w.c. (.871kPa) for maximum input or 1.7"
w.c.(.423kPa)forminimum inputatthe pressureregulatoroutlet
with the inlet pressure to the pressure regulator from a minimum
of 4.5" w.c. (1.120kPa) for the purpose of input adjustment to a
maximum of 10.5" w.c. (2.614kPa). VFHS-20/10T Natural gas
willhaveamanifoldpressureofapproximately6.0"w.c.(1.49kPa)
at the pressure regulator outlet with the inlet pressure to the
pressureregulator fromaminimum of7.0"w.c. (1.74kPa)forthe
purpose of input adjustment to a maximum of 10.5" w.c.
(2.615kPa).VFHS-20RPropanegaswillhaveamanifoldpressure
approximately10.0"w.c.(2.49kPa)formaximuminputor6.3"w.c.
(1.568kPa) for minimum input at the pressure regulator outlet
with the inlet pressure to the pressure regulator from a minimum
of 11.0"w.c. (2.739kPa) for the purpose of input adjustment to a
maximum of 13.0"w.c. (3.237kPa). VFHS-20/10T Propane gas
willhaveamanifoldpressureapproximately10.0"w.c.(2.49kPa)
at the pressure regulator outlet with the inlet pressure to the
pressure regulator from a minimum of 11.0"w.c. (2.739kPa) for
the purpose of input adjustment to a maximum of 13.0"w.c.
(3.237kPa).

Page 9VFHS-20/10
CLEARANCES
Minimum Wall and Ceiling Clearances (Figure 4)
Figure 4
This fireplace can be installed with zero (0") clearance to
combustible material
When facing the front of the appliance the minimum clearances
to combustible construction (material) are the following:
1. Clearances from the right side or left side of the fireplace
opening to any combustible wall or material should not be
less than 4 inches.
2. Clearances from the top of the fireplace opening to the
ceiling should not be less than 30 inches.
Mantel Clearances for Built-in Installation ( Figure 5)
Figure 5
COMBUSTIBLE MATERIAL
Donotattachcombustiblematerialtothemantelofyourfireplace.
This is a fire hazard.
Figure 6
Nogreetingcards,stockings orornamentation ofanytypeshould
be placed on or attached to the fireplace. This is a heating
appliance. The flow of heat can ignite combustibles.
Figure 7

Page 10 VFHS-20/10
INSTALLATION OF FIREPLACE INTO MANTEL
Installing Fireplace in Mantel ( Figure 9)
Figure 9
1. Position base approximately 5" from wall surface.
2. Attach nailing flange to fireplace top with two (2) 10 x 1/2"
screws.
3. Place fireplace on top of base.
4. Gas line connections must be made at this time. When facing
the fireplace the gas supply will enter on right-hand side. See
"Gas Supply" Page 8.
5. Place right mantel side against base. Insert dowels in
breastboard into right mantel side. Breastboard will rest on
fireplace top and in front of nailing flange.
Attention: Placing the breastboard in front of nailing flange
will secure the fireplace.
6. Placeleftmantelsideagainstbase.Insertdowelsinbreastboard
into left mantel side.
7. Place mantel top onto mantel.
8. Installation of fireplace into mantel is completed.
Installation of Brass Trim
1. Lower bottom louver.
2. Remove screen from fireplace.
3. Remove top louver from fireplace [two (2) Phillips screws].
4. Attach right and left brass trim, sides to fireplace. Use two (2)
Phillips screws for each side.
5. Attach brass trim top to fireplace with two (2) Phillips screws.
Figure 8