Regency Liberty L900 Gas Fireplace L900-NG1 Quick start guide

Tested by:
FPI FIREPLACE PRODUCTS INTERNATIONAL LTD. 6988 Venture St., Delta, BC Canada, V4G 1H4
918-726a
MODELS: L900-NG1 Natural Gas L900-LP1 Propane
FOR YOUR SAFETY
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 neighbour's phone. Follow
the gas supplier's instructions.
If you cannot reach your gas
supplier, call the fire department.
WARNING:
Iftheinformationintheseinstructionsarenotfollowedexactly,
a fire or explosion may result causing property damage,
personal injury or loss of life.
FOR YOUR SAFETY
Do not store or use gasoline or other flammable vapors and
liquids in the vicinity of this or any other appliance.
Installation and service must be performed by a qualified
installer, service agency or the gas supplier.
02/09/09
Installer: Please complete the details on the back cover
and leave this manual with the homeowner.
Homeowner: Please keep these instructions for future reference.
TM
LIBERTY™L900-1 Gas Fireplace
Owners &
Installation Manual
www.regency-fire.com

WARNING
HOT GLASS
DO NOT TOUCH
NEVER
WILL
CAUSE BURNS
GLASS
UNTIL COOLED
ALLOW CHILDREN
TO TOUCH GLASS
CHILDREN AND ADULTS SHOULD BE ALERTED TO
THE HAZARDS OF HIGH SURFACE TEMPERATURES,
ESPECIALLY THE FIREPLACE GLASS, AND SHOULD
STAYAWAYTOAVOIDBURNSORCLOTHINGIGNITION.

Regency®L900-1 Direct Vent Gas Fireplace
2
To the New Owner:
Congratulations!
You are the owner of a state-of-the-art Gas Fireplace by REGENCY®. The L900-1 has been
designed to provide you with all the warmth and charm of a wood fireplace at the flick of
a switch. The model L900-1 has been approved by Warnock Hersey for both safety and
efficiency. As it also bears our own mark, it promises to provide you with economy, comfort
and security for many trouble free years to follow. Please take a moment now to acquaint
yourself with these instructions and the many features of your Regency®Fireplace.
MANUFACTURED MOBILE HOME REQUIREMENTS
INFORMATION FOR MOBILE/MANUFACTURED HOMES AFTER FIRST SALE
This Regency®product has been tested and listed by Warnock Hersey as a Direct Vent Wall Furnace to the following standards:
VENTED GAS FIREPLACE HEATERSANSI Z21.88a-2007 / CSA2.33a-2007 and GAS-FIRED APPLIANCES FOR USEAT HIGH
ALTITUDES CAN / CGA 2.17-M91.
This Direct Vent System Appliance must be installed in accordance with the manufacturer's installation instructions and the
Manufactured Home Construction and Safety Standard, Title 24 CFR, Part 3280, or the current Standard of Fire Safety Criteria for
Manufactured Home Installations, Sites, and CommunitiesANSI/NFPA501A, and with CAN/CSAZ240-MH Mobile Home Standard
in Canada.
This appliance installation must comply with the manufacturer's installation instructions and local codes, if any. In the absence of
local codes follow the current National Fuel Gas Code,ANSI Z223.1 and the current National Electrical Code ANSI/NFPA70 in the
U.S.A., and the current CAN/CGA B149 Gas Installation Code and the current Canadian Electrical Code CSA C22.1 in Canada.
This appliance comes equipped with a dedicated #8 Ground Lug for attachment of the ground wire to the steel chassis as applicable
to local codes.
The appliance, when installed, must be electrically grounded in accordance with local codes or, in the absence of local codes, with
the National Electrical Code, ANSI/NFPA 70, or the Canadian Electrical Code, CSA C22.1.
This appliance may only be installed in an aftermarket permanently located, manufactured (U.S.Aonly) or mobile home, where not
prohibited by local codes.
This appliance can only be used with the type of gas indicated on the rating plate. This appliance is not convertible for use with
other gases, unless a certified kit is used.
Ensure that structural members are not cut or weakened during installation.

Regency®L900-1 Direct Vent Gas Fireplace 3
TABLE OF CONTENTS
SAFETY LABEL
Copy of Safety Decal.....................................................4
REQUIREMENTS
MA Code - CO Detector.................................................5
UNIT DIMENSIONS
Unit Dimensions ..........................................................6
INSTALLATION
Important Message ......................................................7
Before You Start ............................................................7
General Safety Information............................................7
Installation Checklist......................................................7
Manufactured Mobile Home Additional Requirements ..8
Locating Your Gas Fireplace .........................................8
Heatwave Duct Kit ........................................................8
Heat Release Kit ...........................................................8
Finished Floor................................................................8
Clearances ....................................................................9
Mantel Clearances.......................................................10
Mantel Leg Clearances................................................10
Framing & Finishing.....................................................11
Unit Assembly Prior To Installation..............................12
Top Standoff Assembly........................................12
Side Nailing Strips ...............................................12
Finishing Template.......................................................12
Venting Introduction.....................................................12
Vent Restrictor Position...............................................13
Exterior Vent Termination Requirements.....................14
Venting Arrangements ................................................15
Horizontal Termination (Flex)...............................15
Rigid Pipe Venting Systems ........................................16
Basic Horizontal & Vertical Terminations.............16
5” x 8” Rigid Pipe Cross Reference Chart...................17
Venting Arrangements ................................................19
Allowable Horizontal Terminations.......................19
Venting Arrangements ................................................22
Allowable Vertical Terminations...........................22
Unit Installation with Horizontal Termination................23
Unit Installation with Vertical Termination....................24
Unit Installation............................................................25
Horizontal Termination.........................................25
with Flex Vent System .........................................25
High Elevation .............................................................26
Gas Line Installation....................................................26
Pilot Adjustment...........................................................26
Gas Pipe Pressure Testing..........................................26
SIT 829 Valve Description...........................................26
Aeration Adjustment ....................................................27
Wiring Diagram ...........................................................27
Conversion from NG to LP ..........................................28
Brick Panel Installation................................................30
Log Set Installation......................................................32
Mesh Pull Screen Installation......................................36
Optional Andiron Installation........................................37
OPERATING INSTRUCTIONS
Operating Instructions .................................................38
Matching Remote Control & Receiver Code................38
Lighting Procedure ......................................................38
Shutdown Procedure...................................................38
First Fire ......................................................................38
Normal Operating Sounds of Gas Appliances.............39
Copy of Lighting Plate Instructions..............................39
MAINTENANCE
Maintenance Instructions.............................................40
General Vent Maintenance..........................................40
Log Replacement ........................................................40
Thermopile / Thermocouple.........................................40
Glass Gasket...............................................................40
Door Glass...................................................................40
Glass Replacement .............................................40
DC Spark Box Battery Replacement...........................41
DC Spark Box Replacement........................................41
Valve Tray Replacement..............................................42
PARTS LIST
Main Assembly ............................................................44
Burner & Log Assembly...............................................46
WARRANTY
The Warranty: Limited Lifetime ...................................47

Regency®L900-1 Direct Vent Gas Fireplace
4
INSTALLATION
SAFETY LABEL
This is a copy of the label that accompanies
each L900-NG1 and L900-LP1 Direct Vent
Gas Fireplace. We have printed a copy of the
contents here for your review. The safety label
islocatedonthelefthandsideoftheunitbehind
the mesh screen.
NOTE: Regency®units are constantly being
improved. Check the label on the unit and if
there is a difference, the label on the unit is
the correct one.
COPY OF SAFETY DECAL
FortheStateof Massachusetts, installation
and repair must be done by a plumber or
gasfitter licensed in the Commonwealth of
Massachusetts.
For the State of Massachusetts, flexible
connectors shall not exceed 36 inches in
length.
For the State of Massachusetts, the appli-
ances individual manual shut-off must be a
t-handle type valve.
The State of Massachusetts requires the
installation of a carbon monoxide alarm in
accordancewith NFPA720andaCOalarm
withbatterybackupinthesameroomwhere
the gas appliance is installed.

Regency®L900-1 Direct Vent Gas Fireplace 5
INSTALLATION
REQUIREMENTS
5.08: Modifications to NFPA-54, Chapter 10
(2) Revise 10.8.3 by adding the following additional requirements:
(a) For all side wall horizontally vented gas fueled equipment installed in every dwelling, building or structure used in whole or in part for
residential purposes, including those owned or operated by the Commonwealth and where the side wall exhaust vent termination is less than
seven (7) feet above finished grade in the area of the venting, including but not limited to decks and porches, the following requirements shall
be satisfied:
1. INSTALLATION OF CARBON MONOXIDE DETECTORS. At the time of installation of the side wall horizontal vented gas fueled
equipment, the installing plumber or gasfitter shall observe that a hard wired carbon monoxide detector with an alarm and battery back-up is
installed on the floor level where the gas equipment is to be installed. In addition, the installing plumber or gasfitter shall observe that a battery
operated or hard wired carbon monoxide detector with an alarm is installed on each additional level of the dwelling, building or structure
served by the side wall horizontal vented gas fueled equipment. It shall be the responsibility of the property owner to secure the services of
qualified licensed professionals for the installation of hard wired carbon monoxide detectors
a. In the event that the side wall horizontally vented gas fueled equipment is installed in a crawl space or an attic, the hard wired carbon
monoxide detector with alarm and battery back-up may be installed on the next adjacent floor level.
b. In the event that the requirements of this subdivision can not be met at the time of completion of installation, the owner shall have a period of
thirty (30) days to comply with the above requirements; provided, however, that during said thirty (30) day period, a battery operated carbon
monoxide detector with an alarm shall be installed.
2. APPROVED CARBON MONOXIDE DETECTORS. Each carbon monoxide detector as required in accordance with the above provisions
shall comply with NFPA 720 and be ANSI/UL 2034 listed and IAS certified.
3. SIGNAGE. A metal or plastic identification plate shall be permanently mounted to the exterior of the building at a minimum height of eight
(8) feet above grade directly in line with the exhaust vent terminal for the horizontally vented gas fueled heating appliance or equipment. The
sign shall read, in print size no less than one-half (1/2) inch in size, "GAS VENT DIRECTLY BELOW. KEEP CLEAR OF ALL
OBSTRUCTIONS".
4. INSPECTION. The state or local gas inspector of the side wall horizontally vented gas fueled equipment shall not approve the installation
unless, upon inspection, the inspector observes carbon monoxide detectors and signage installed in accordance with the provisions of 248 CMR
5.08(2)(a)1 through 4.
(b) EXEMPTIONS: The following equipment is exempt from 248 CMR 5.08(2)(a)1 through 4:
1. The equipment listed in Chapter 10 entitled "Equipment Not Required To Be Vented" in the most current edition of NFPA 54 as adopted by
the Board; and
2. Product Approved side wall horizontally vented gas fueled equipment installed in a room or structure separate from the dwelling, building or
structure used in whole or in part for residential purposes.
(c) MANUFACTURER REQUIREMENTS - GAS EQUIPMENT VENTING SYSTEM PROVIDED. When the manufacturer of Product
Approved side wall horizontally vented gas equipment provides a venting system design or venting system components with the equipment, the
instructions provided by the manufacturer for installation of the equipment and the venting system shall include:
1. Detailed instructions for the installation of the venting system design or the venting system components; and
2. A complete parts list for the venting system design or venting system.
(d) MANUFACTURER REQUIREMENTS - GAS EQUIPMENT VENTING SYSTEM NOT PROVIDED. When the manufacturer of a
Product Approved side wall horizontally vented gas fueled equipment does not provide the parts for venting the flue gases, but identifies
"special venting systems", the following requirements shall be satisfied by the manufacturer:
1. The referenced "special venting system" instructions shall be included with the appliance or equipment installation instructions; and
2. The "special venting systems" shall be Product Approved by the Board, and the instructions for that system shall include a parts list and
detailed installation instructions.
(e) A copy of all installation instructions for all Product Approved side wall horizontally vented gas fueled equipment, all venting instructions,
all parts lists for venting instructions, and/or all venting design instructions shall remain with the appliance or equipment at the completion of
the installation.
MA Code - CO Detector
(for the State of Massachusetts only)

Regency®L900-1 Direct Vent Gas Fireplace
6
INSTALLATION
UNIT DIMENSIONS

Regency®L900-1 Direct Vent Gas Fireplace 7
INSTALLATION
12) Installationandanyrepairstothisappliance
should be done by an authorized service
person.Aprofessionalservicepersonshould
becalled to inspectthisapplianceannually.
Make it a practice to have all of your gas
appliances checked annually.
13) Do not slam shut or strike the glass door.
14) Under no circumstances should any solid
fuels (wood, paper, cardboard, coal, etc.)
be used in this appliance.
15) The appliance area must be kept clear and
free of combustible materials, (gases and
other flammable vapours and liquids).
INSTALLATION
CHECKLIST
1) Locate appliance
a) Room location (Refer to "Locating Your
Gas fireplace" section)
b) Clearances to Combustibles (Refer to
"Clearances" section)
c) Mantle Clearances (Refer to "Mantel
Clearances" section)
d) Framing & Finishing Requirements
(Refer to "Framing & Finishing"
section)
e) Venting Requirements (Refer to
"Venting" section)
2) AssembleTopand Side Standoffs(Referto
"Unit Assembly Prior to Installation).
3) Install batteries; four "AA" batteries in the
wallmountedreceiver; three"AAA"batteries
in the remote control and one "AA" battery
intotheDCSparker.(Refertoremotecontrol
manual for operating instructions).
4) Convert to propane if desired (Refer to
"Conversion from NG to LP" section).
5) Slide unit into place.
6) Installvent(Referto"Venting Arrangement"
sections).
7) Make gas connections (Refer to "Gas Line
Installation section).
8) Test the pilot (Refer to "Pilot Adjustment"
section).
Emissions from burning wood or gas could
contain chemicals known to the State of
California to cause cancer, birth defects or
other reproductive harm.
INSTALLATION
IMPORTANT MESSAGE
SAVE THESE
INSTRUCTIONS
The L900-1 Direct Vent Fireplace must be
installed in accordance with these instructions.
Carefullyread alltheinstructions inthismanual
first.Consultthe"authorityhavingjurisdiction"to
determinethe need for a permitpriorto starting
the installation. It is the responsibility of the
installer to ensure this fireplace is installed in
compliancewithmanufacturersinstructionsand
all applicable codes.
BEFORE YOU START
Safeinstallationandoperationofthisappliance
requires common sense, however, we are
required by the Canadian Safety Standards
and ANSI Standards to make you aware of
the following:
YOUNG CHILDREN SHOULD BE
CAREFULLY SUPERVISED WHEN
THEY ARE IN THE SAME ROOM AS
THE APPLIANCE.
CLOTHINGOROTHERFLAMMABLE
MATERIALSHOULDNOTBEPLACED
ON OR NEAR THE APPLIANCE.
INSTALLATION AND REPAIR SHOULD
BE DONE BY AN AUTHORIZED
SERVICE PERSON. THE 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
MATERIAL, ETC. IT IS IMPERATIVE
THAT CONTROL COMPARTMENTS,
BURNERS AND CIRCULATING AIR
PASSAGEWAYS OF THE APPLIANCE
BE KEPT CLEAN.
DUE TO HIGH TEMPERATURES, THE
APPLIANCE SHOULD BE LOCATED
OUT OF TRAFFIC AND AWAY FROM
FURNITURE AND DRAPERIES.
WARNING: FAILURE TO INSTALL THIS
APPLIANCE CORRECTLY WILL VOID
YOUR WARRANTY AND MAY CAUSE
A SERIOUS HOUSE FIRE.
CHILDREN AND ADULTS SHOULD BE
ALERTED TO THE HAZARDS OF HIGH
SURFACE TEMPERATURES, ESPE-
CIALLY THE FIREPLACE GLASS, AND
SHOULDSTAYAWAYTOAVOIDBURNS
OR CLOTHING IGNITION.
GENERAL SAFETY
INFORMATION
1) The appliance installation must conform
with local codes or, in the absence of local
codes,withthecurrentCanadianorNational
Gas Codes, CAN1-B149 or ANSI Z223.1
Installation Codes.
2) The appliance when installed, must be
electrically grounded in accordance with
localcodes,orintheabsenceoflocalcodes
with the current National Electrical Code,
ANSI/NFPA 70 or CSA C22.1 Canadian
Electrical Code.
3) See general construction and assembly
instructions.Theapplianceandventshould
be enclosed.
4) This appliance must be connected to the
specified vent and termination cap to the
outsideofthebuildingenvelope.Nevervent
to another room or inside a building. Make
sure that the vent is fitted as per Venting
instructions.
5) Inspect the venting system annually for
blockage and any signs of deterioration.
6) Ventingterminalsshallnotberecessed into
a wall or siding.
7) Any safety glass removed for servicing
must be replaced prior to operating the
appliance.
8) To prevent injury, do not allow anyone who
is unfamiliar with the operation to use the
fireplace.
9) Wearglovesandsafetyglassesforprotection
while doing required maintenance.
10) Be aware of electrical wiring locations in
walls and ceilings when cutting holes for
termination.
11) Under no circumstances should this
appliancebemodified.Partsthathavetobe
removed for servicing should be replaced
prior to operating this appliance.

Regency®L900-1 Direct Vent Gas Fireplace
8
INSTALLATION
INSTALLATION
This includes:
1) Clockingtheappliancetoensurethecorrect
firing rate (rate noted on label 41,500 (NG)
Btu/h, 38,500 (LP) Btu/h) after burning
appliance for 15 minutes.
2) Ifrequired,adjustingtheprimaryairtoensure
that the flame does not carbon. First allow
the unit to burn for 15-20 min. to stabilize.
CAUTION: Any alteration to the product that
causes sooting or carboning that results
in damage is not the responsibility of the
manufacturer.
MANUFACTURED
MOBILE HOME
ADDITIONAL
REQUIREMENTS
1) Ensure that structural members are not cut
or weakened during installation.
2) Ensure proper grounding using the #8
ground lug provided. See "Wiring Diagram"
section.
LOCATING YOUR
GAS FIREPLACE
1) When selecting a location for your fireplace,
ensure that the clearances are met.
2) The appliance must be installed on a flat,
solid, continuous surface (e.g. wood, metal,
concrete).Thismaybethefloor,orraisedup
on a platform to enhance its visual impact.
The appliance must be installed on a metal
or wood panel extending the full width and
depth of the appliance.
3) The L900-1 Direct Vent Gas Fireplace can
beinstalledinarecessedposition or framed
out into the room as in A, B, C and D. See
Diagram 1.
4) This appliance is Listed for bedroom
installations using the standard Remote
(millivolt thermostat system). Some areas
may have further requirements, check local
codes before installation.
5) The L900-1 Direct Vent Gas Fireplace
is approved for alcove installations, see
"Clearances" section for details.
6) We recommendthatyouplanyourinstallation
on paper using exact measurements for
clearances and floor protection before
actually installing this appliance. Have an
authorized inspector, dealer, or installer
review your plans before installation.
Note: For vent terminations refer to
"ExteriorVent TerminationLocations"
section.
HEATWAVE
DUCT KIT
The HeatWave Air Duct Kit increases the
effectivenessofyourfireplacebydispersingwarm
air from the fireplace to remote locations in the
same room or other rooms in your home.
Up to two kits may be installed on the fireplace.
Please Note: Only 1 HeatWave kit may be
operated at one time.
See HeatWave installation manual for complete
details and clearances from side only.
Diagram 1
A) Flat on Wall
B) Flat on Wall Corner
C) Recessed into
Wall/Alcove
D) Corner
HEAT RELEASE KIT
The Heat Release Kit expels warm air from the
fireplace to the outside of the building, allowing
thefireplacetobeoperatedwithlessheatentering
the room. The kit may be used on either the left
or right side.
SeeHeatReleaseinstallationmanualforcomplete
details and clearances from side only.
9) TestGasPressure(Referto"GasPipePres-
sure Testing" section).
10) Installstandardandoptionalfeatures. Refer
to the following sections:
a) Brick Panels
b) Log Set
c) Remote Control - refer to "Matching
Remote Handset & Control Box
ID Code" section.
11) Final check.
Before leaving this unit with the customer, the
installer must ensure that the appliance is firing
correctly and operation fully explained to
customer.
The HeatWave Duct Kit has different
clearance and framing requirements,
check the HeatWave manual for details.
IMPORTANT NOTE
Combustible material can only be installed to
the bottom lip of the fireplace as shown below.
The finished floor must not come in contact with
the front face of the fireplace. Non-combustible
material (see "Framing and Finishing" section)
must act as a barrier between the front face and
finished floor.
FINISHED FLOOR
The maximum height that combustible floor can
be brought above the base of the unit is 3".

Regency®L900-1 Direct Vent Gas Fireplace 9
INSTALLATION
INSTALLATION
CLEARANCES
The clearances listed below are Minimum distances unless otherwise stated:
A major cause of chimney related fires is failure to maintain required clearances (air space) to combustible materials. It is of the greatest
importance that this fireplace and vent system be installed only in accordance with these instructions.
Clearance to Combustibles from:
Back 0" (0mm)
Side 0" (0mm)
Floor 0" (0mm)
Minimum Clearance from Top of Front Facing:
Mantel min. 17-1/2" (445mm)
Ceiling 49" (1245mm) from top of front facing
Side Wall to Unit:
15-3/4"* (400mm)
Horizontal Vent Clearances to Combustibles:
Top 3" (76mm)
Side 2" (51mm)
Bottom 2" (51 mm)
Vertical Vent Clearances to Combustibles:
All Sides 2" (51mm)
Alcove Clearances:
Min. Depth 36" (914mm)
Min. Width* 84" (2134mm)
Min. Height 84" (2134mm)
* Alcove side wall must have a minimum of 15-3/4" (400mm) clearance on one side.
IMPORTANT: Must install 1 set of brick panels. The operation of this unit without brick panels is prohibited.
Caution Requirements
The top, back and sides of the fireplace are defined by
standoffs. The metal ends of the standoff may NOT be
recessed into combustible construction.
WARNING
Fire hazard is an extreme risk
if these clearances (air space) to combustible materials
are not adhered to. It is of greatest importance that this
fireplace and vent system be installed only in
accordance with these instructions.
IMPORTANT
If converting this unit to LP, it is highly recommened
the conversion be done BEFORE the unit is slid into
position for ease of conversion. See "Conversion
from NG to LP" section for instructions.
NOTE: Only materials such as, but not limited to durarock,
wonderboardandconcreteboardmaybeputonthefrontface
of this appliance. See specific requirements under "Framing
and Finishing" section.

Regency®L900-1 Direct Vent Gas Fireplace
10
INSTALLATION
INSTALLATION
MANTEL CLEARANCES
Because of the extreme heat this fireplace emits, the mantel clearances are critical. Combustible mantel clearances from top of front facing
are shown in the diagram below.
Note: A non-combustible mantel may be installed at a lower height if the framing is made of metal studs covered with a non-combustible
board.
Note: Ensure the paint that is used
on the mantel and the facing is
"heat resistant" or the paint may
discolour.
MANTEL LEG CLEARANCES
Combustible mantel leg clearances as per diagram:

Regency®L900-1 Direct Vent Gas Fireplace 11
INSTALLATION
INSTALLATION
Diagram 1
1) Frame in the enclosure for the unit with framing material. The framed
opening for the assembled kit is 50-3/4" high x 52" wide x 26-1/2"
deep (1289mm x H 1321mm W x 673mm D). See Diagram 1. Also
see Diagram 2 for corner installations.
Note: When constructing the framed opening, please ensure
thereisaccesstoinstallthegaslineswhentheunitisinstalled.
See diagram 3 for details.
2) Forexterior walls,insulatetheenclosure tothesame degreeastherest
of the house, apply vapour barrier and drywall, as per local installation
codes. (Do not insulate the fireplace itself.)
3) The unit does not have to be completely enclosed in a chase. You
must maintain clearances from the vent to combustible materials: See
"Clearances" section. Combustible materials can be laid against the
side and back standoffs and the stove base.
4) Finishingmaterialsuchastile,riverrock,etc.mustnotpertrudebeyond
the front facing flanges on all 4 sides of the firebox opening.
FRAMING & FINISHING
50-3/4"
(1289mm)
52”
(1321mm)
Min. 26-1/2"
(673mm)
60"
(1524mm)
Combustible Header
(On Edge)
Diagram 2
Diagram 3
NON-COMBUSTIBLE REQUIREMENTS
IMPORTANT
If converting this unit to LP, it is highly recommened
the conversion be done BEFORE the unit is slid into
position for ease of conversion. See "Conversion
from NG to LP" section for instructions.

Regency®L900-1 Direct Vent Gas Fireplace
12
INSTALLATION
INSTALLATION
SIDE NAILING STRIPS
Thesidenailingstripscomeattachedtotheunit.
There are 2 plates on each side, one on the top
and bottom that can be folded out as required.
UNIT ASSEMBLY
PRIOR TO
INSTALLATION
TheTopFacingSupport,theSideNailingStrips
and the 2 Top Standoffs must be correctly
positioned and attached to the top before unit
is slipped into position.
TOP STANDOFF ASSEMBLY
The top standoffs are shipped in a flat position
and must be folded into shape and attached.
1) Remove the standoffs from the fireplace
top.
2) Takeeachstandoffandbendintothecorrect
shape. Bend up at the bend lines until the
screw holes in the standoff and the pre-
punched screw holes on the fireplace top
line up.
3) Attach the standoff securely to the top
with 2 screws per standoff (on opposite
corners). Side Nailing Strips shown folded out.
FINISHING TEMPLATE
In order to maintain a clean face; the L900-1
allowsfor a 1/8” in overlapoffinishingmaterial,
such as rock or tile, on both the left and right
handsides of theunit (top and bottomsides do
not allow for an overlap), this overlap must not
be exceeded or the glass door will no longer
open properly.
Non-combustible wall board is installed up
to the flanges on all sides of the unit. When
installing any additional facing material use
the Finishing Template (included with the unit)
to ensure that the finishing material does not
exceed the allowable overlap.
The Finishing Template uses two magnets to
attachitself to the flangeontheleftorright side
oftheunit(seediagrambelow).Installthefacing
material up to the outside edge (when facing
theunit)ofthefinishingtemplate. Thistemplate
may be discarded after the facing material has
been installed.
VENTING
INTRODUCTION
The L900-1 uses the "balanced flue" technology
Co Axial system. The inner liner vents products
of combustion to the outside while the outer liner
drawsoutsidecombustionairintothecombustion
chamber thereby eliminating the need to use
heated room air for combustion and losing warm
room air up the chimney.
Note: Thesefluepipesmustnotbeconnected
to any other appliance.
The gas appliance and vent system must be
vented directly to the outside of the building,
and never be attached to a chimney serving a
separate solid fuel or gas burning appliance.
Eachdirectvent gas appliance must use it'sown
separate vent system. Common vent systems
are prohibited.

Regency®L900-1 Direct Vent Gas Fireplace 13
INSTALLATION
Vent restriction is required for certain venting
installations, see the diagrams in the "Venting
Arrangements" section to determine if they are
required for your installation.
TheVentRestrictorplateislocatedontheinside
top of the firebox.
INSTALLATION
VENT RESTRICTOR POSITION
Screws for plugging the holes.
(all holes must be plugged with a screw).
Screw holes for fixing the restrictor plate.
Vent Restrictor Plate
To set the vent restriction as indicated in the
venting arrangements diagrams, refer to the
following instructions;
3) Remove the glass door.
a. Releasethe2doorlatchesontheleft
and right side at the top of the firebox.
b. Swingthedooroutfromthetopandrelease
the hinge on the left side of the door and
lift out.
Latch
Latch Location
4) Remove the screws that hold the vent
restrictor plate in place.
5) Adjusttheventrestrictorplatetotherequired
vent restrictor position as per the diagrams
shown.
6) Oncetheventrestrictorplateisintherequired
position, secure with screws.
Door
Hinge
1) Removetherightsidemeshbygatheringthe
mesh together and lifting the curved end of
the rod up and out of the bracket located on
the top right of the glass frame.
Nowslidethestraightendoftherodoutfrom
the bracket located on the middle inside top
of the outer shell. Repeat for left side.
Front Cover Plate Right Side Pin Shown
2) Remove the front cover plate by lifting up
off of the pins on the left and right side of
the firebox.
Right Side Rod with Screen Removed
Vent Restrictor Set 4
Baffle plate
Position the baffle plate on the top inside
wall of the firebox, push it back until it
contacts the back wall of the firebox.
When baffle plate is in position, secure with
2 relief door screws.
7) Vent Restrictor Set 4 = combination of
Vent Restrictor Set 1 + installation of the
baffle plate (For application requirements
see vent diagram on page 19).
Relief Door Screws
Loosen the 2 centre relief door screws
(shown below).

Regency®L900-1 Direct Vent Gas Fireplace
14
INSTALLATION
EXTERIOR VENT TERMINATION REQUIREMENTS
INSTALLATION
Minimum Clearance Requirements Canada1USA2
AClearance above grade, veranda, porch, deck, or balcony 12"(30cm) 12"(30cm)
BClearance to window or door that may be opened 12"(30cm) 9" (23cm)
CClearance to permanently closed window **
DVertical clearance to ventilated soffit located above the terminal within a horizontal distance of 2 feet (61cm) 33"(84cm) 33"(84cm)
EClearance to unventilated soffit 33"(84cm) 33"(84cm)
FClearance to outside corner: with AstroCap Termination Cap. 13"(33cm) 13"(33cm)
Clearance to outside corner: with all other approved Termination Caps. 13"(33cm) 13"(33cm)
GClearance to inside corner: with AstroCap Termination Cap 18"(46cm) 18"(46cm)
Clearance to inside corner: with all other approved Termination Caps. 18"(46cm) 18"(46cm)
HClearance to each side of center line extended above meter/regulator assembly 36"(90cm)a*
JClearance to service regulator vent outlet 36"(90cm) *
KClearance to non-mechanical air supply inlet to building or the combustion air inlet to any other appliance 12"(30cm) 9" (23cm)
LClearance to a mechanical air supply inlet 72"(1.8m) 36"(90cm)b
MClearance above paved sidewalk or a paved driveway located on public property 84"(2.1m)┼*
NClearance under veranda, porch, deck, or balcony 12"(30cm)‡*
1In accordance with current CSA B149.1, Natural Gas and Propane Installation Code
2In accordance with the current ANSI Z223.1/NFPA 54, National Fuel Gas Code
┼A vent shall not terminate directly above a sidewalk or paved driveway which is located between two single family dwellings and serves both dwellings
‡ Permitted only if veranda, porch, deck, or balcony is fully open on a minimum of two sides beneath the floor
*Clearance in accordance with local installation codes and the requirements of the gas supplier
a3 feet (91cm) within a height of 15 feet (4.5m) above the meter / regulator assembly
b3 feet (91cm) above - if within 10 feet (3m) horizontally

Regency®L900-1 Direct Vent Gas Fireplace 15
INSTALLATION
INSTALLATION
VENTING ARRANGEMENTS
HORIZONTAL TERMINATION (FLEX)
Regency®Direct Vent System
These venting systems, in combination with the L900-1, have been tested and listed as a direct vent system by Warnock Hersey. The location of the
termination cap must conform to the requirements in the Vent Terminal Locations diagram from the "Exterior Vent Termination Locations" section.
FPI Direct Vent (Flex) System Termination Kits include all the
parts needed to install the L900-1 using a flexible vent.
Notes:
1) Liner sections should be continuous without any joints
or seams.
2) OnlyFlex pipepurchasedfrom FPImay be usedfor Flex
installations.
3) Horizontal vent must be supported every 3 feet.
4) Awallthimbleismandatoryforallhorizontalterminations
due to high temperatures.
FPI Kit # Length Contains:
#946-615 4 Feet 1) 8” flexible liner (Kit length)
2) 5” flexible liner (Kit length)
3) spring spacers
4) thimble
5) AstroCap termination cap
6) screws
7) tube of Mill Pac
8) plated screws
9) S.S. screws #8 x 1-1/2” drill point
10) vinyl siding standoff
#946-618 6 Feet
#946-616 10 Feet

Regency®L900-1 Direct Vent Gas Fireplace
16
INSTALLATION
RIGID PIPE VENTING SYSTEMS
BASIC HORIZONTAL & VERTICAL TERMINATIONS
Rigid Pipe Vent Systems offer a complete
line of component parts for installation of both
horizontalandverticalinstallations.Manyitems
are offered in decorative black, as well as gal-
vanized finish.
The minimum components required for a basic
horizontal termination are:
1 AstroCap XL
1 90oElbow
1 Rigid Pipe Adaptor
1 Wall Thimble
1 Length of pipe to suit wall thickness
The minimum components required for a basic
vertical termination are:
1 Vertical Termination Cap
1 Rigid Pipe Adaptor
1 Lengths of pipe to adequately
penetrate roof
1 Ceiling Firestop
1 Flashing
1 Storm Collar
Wall thickness is measured from the back
standoffs to the inside mounting surface of
termination cap. For siding other than vinyl
furring strips may be used, instead of the vinyl
siding standoff, to create a level surface to
mount the vent terminal. The Terminal must
not be recessed into siding. Measure the wall
thickness including furring strips.
If a Vinyl Siding Standoff is required (it must
be used with vinyl siding), measure to outside
surface of wall without siding and add 2
inches.
Alternate
Horizontal Termination
Caps When using Rigid Vent other than
Simpson Dura-Vent, 3 screws must be
used to secure rigid pipe to adaptor.
The FPI AstroCap XLTM is certified for installations using FPI venting systems as well as Simpson Dura-Vent®Direct Vent Pro and Selkirk Direct-Temp.
AstroCap XLTM is a proprietary trademark of FPI Fireplace Products International Ltd. Dura-Vent® and Direct Vent GS are registered and/or proprietary
trademarks of Simpson Dura-Vent Co. Inc.
This product has been evaluated by Intertek
for using a Rigid Pipe Adaptor in conjunction
with Simpson DV Pro, Metal-Fab Sure-Seal
andSelkirkDirect-Tempsystems.Useofthese
systemswiththeRigidPipeadaptorisdeemed
acceptableanddoesnotaffecttheIntertekWHI
listing of components.
WARNING:
Do not combine venting components from
different venting systems.
Expection: However, use of the the AstroCap
XLTM is acceptable with all systems.
INSTALLATION
Part # 5DT-ST14 (14")
Part # 5DT-ST36 (36")

Regency®L900-1 Direct Vent Gas Fireplace 17
INSTALLATION
INSTALLATION
Adjustable Length 3”-10”-Galvanized N/A N/A 5DAL TC-5DLT
Adjustable Length 3”-10”-Black N/A N/A 5DALB TC-5DLTB
Adjustable Length 11”-14” -Galvanized Disc. - See 58DV-08A 5DT-AJ N/A N/A
Adjustable Length 11”-14” -Black Disc. - See 58DV-08B 5DT-AJB N/A N/A
Extension Pipe 17”-24” -Galvanized Disc. - See 58DV-16A N/A N/A N/A
Extension Pipe 17”-24” -Black Disc. - See 58DV-16AB N/A N/A N/A
Adjustable Length 8-1/2”-Galvanized 58DVA-08A - N/A from FPI N/A N/A N/A
Adjustable Length 8-1/2”-Black 58DVA-08AB N/A N/A N/A
Extension Pipe 16”-Galvanized 58DVA-16A - N/A from FPI N/A N/A N/A
Extension Pipe 16”-Black 46DVA-16AB N/A N/A N/A
45ºElbow-Galvanized 58DVA-E45 5DT-EL45 5DT-EL45 TE-5DE45
45ºElbow-Black 58DVA-E45B 5DT-EL45B 5DT-EL45B TE-5DE45B
45ºElbow Swivel-Galvanized Disc. - See 58DVA-E45 N/A N/A N/A
45ºElbow Swivel-Black Disc.-See 58DVA-E45B N/A N/A N/A
90ºElbow-Galvanized 58DVA-E90 5DT-EL90S 5DT-EL90S TE-5DE90
90ºElbow-Black 58DVA-E90B 5DT-EL90SB 5DT-EL90SB TE-5DE90B
90ºElbow, Swivel-Galvanized Disc. - See 46DVA-E45 N/A N/A N/A
90ºElbow, Swivel-Black Disc. - See 46DVA-E45 N/A N/A N/A
90º Starter Elbow, Swivel-Galvanized N/A N/A N/A N/A
Adaptor* N/A N/A N/A N/A
Ceiling Support 58DVA-DC 5DT-CS 5DSP TE-5DE45
Cathedral Support Box 58DVA-CS 5DT-CSS 5DRS TE-5DE45B
Wall Support/Band 58DVA-WS 5DT-WS/B 5DWS N/A
Offset Support 58DVA-ES - N/A from FPI 5DT-OS N/A N/A
Wall Thimble-Black 58DVA-WT 5DT-WT 5DWT TE-5DE90
Wall Thimble Support/Ceiling Support 58DVA-DC - N/A from FPI N/A N/A TE-5DE90B
Firestop Spacer 58DVA-FS 5DT-FS 5DFS N/A
Trim Plate-Black 58DAV-WFS 5DT-TP 5DCP N/A
5” X 8” RIGID PIPE CROSS REFERENCE CHART
Components from different Manufacturers may not be mixed. Not all rigid pipe components are available directly from Regency.
Description Simpson
Direct Vent Pro®
Selkirk
Direct Temp™
Metal-Fab™
Sure Seal
ICC Excel
Direct
6” Pipe Length-Galvanized 58DVA-06 5DT-6 5D6 TC-5DL6
6” Pipe Length-Black 58DVA-06B 5DT-6B 5D6B TC-5DL6B
9” Pipe Length-Galvanized 58DVA-09 5DT-9 N/A N/A
9” Pipe Length-Black 58DVA-09B 5DT-9B N/A N/A
12” Pipe Length-Galvanized 58DVA-12 5DT-12 5D12 TC-5DL1
12” Pipe Length-Black 58DVA-12B 5DT-12B 5D12B TC-5DL1B
18” Pipe Length-Galvanized 58DVA-18 5DT-18 5D18 TC-5DL18
18” Pipe Length-Black 58DVA-18B - N/A from FPI 5DT-18B 5D18B TC-5DL18B
24” Pipe Length-Galvanized 58DVA-24 5DT-24 5D24 TC-5DL2
24” Pipe Length-Black 58DVA-24B 5DT-24B 5D24B TC-4DL2B
36” Pipe Length-Galvanized 58DVA-36 5DT-36 5D36 TC-5DL3
36” Pipe Length-Black 58DVA-36B 5DT-36B 5D36B TC-5DL3B
48” Pipe Length-Galvanized 58DVA-48 5DT-48 5D48 TC-5DL4
48” Pipe Length-Black 58DVA-48B 5DT-48B 5D48B TC-5DL4B
60” Pipe Length-Galvanized 58DVA-60 N/A N/A N/A
60” Pipe Length-Black 58DVA-60B - N/A from FPI N/A N/A N/A
5” X 8” RIGID PIPE CROSS REFERENCE CHART
Components from different Manufacturers may not be mixed. Not All Rigid Pipe components are available directly from FPI.

Regency®L900-1 Direct Vent Gas Fireplace
18
INSTALLATION
INSTALLATION
Description Simpson
Direct Vent Pro®
Selkirk
Direct Temp™
Metal-Fab™
Sure Seal
ICC Excel
Direct
Attic Insulation Shield 12” 58DVA-IS N/A from FPI N/A N/A N/A
High Wind Vertical Cap 58DVA-VCH N/A N/A TM-5VT
High Wind Horizontal Cap N/A N/A N/A TM-5DHT
Horizontal Square Termination Cap N/A 5DT-HHC 5DHT TM-5HT
Vertical Termination Cap N/A 5DT-HVC 5DVT TM-5VT
Storm Collar 58DVA-SC 5DT-SC 5DSC TM-SC
Restrictor Disk 58DVA-RD N/A N/A TM-5DS
Colinear Flex Connectors N/A N/A N/A N/A
Adjustable Flashing 0/12-6/12 58DVA-F6 5DT-AF6 5DF TF-5FA
Adjustable Flashing 6/12-12/12 58DVA-F12 5DT-AF12 5DF1-2 TF-5FB
Vinyl Siding Standoff 58DVA-VSS 5DT-VS 5DVS TM-VSS
Vinyl Siding Shield Plate N/A 5DT-VSP N/A N/A
Snorkel Termination 14” 58DVA-SNK14 N/A N/A TM-5ST14
Snorkel Termination 36” 58DVA-SNK36 (N/A - FPI) N/A N/A TM-5ST36
Basic Horizontal Termination Kit (A) N/A 5DT-HKA N/A N/A
Horizontal Termination Kit (B) 58DVA-KHA 5DT-HKB N/A N/A
Vertical Termination Kit 58DVA-VHA 5DT-VKC N/A N/A
FPI
946-604/P Simpson Direct Vent -Vent Guard (Optional) 946-623/P AstroCap XL Horizontal Cap
770-994 Rigid Pipe Adaptor (Must use with all rigid piping) 946-506/P Vent Guard (Optional)
946-606 Starter collar reducer 5” x 8” to 4” x 6-5/8” 946-625 Vinyl Siding Standoff - AstroCap XL
Note: When using Metal-Fab Sure Seal Rigid Piping - please note that the Adaptor (4DDA) must be used in conjunction with FPI Rigid Pipe Adaptor (510-994).
Offset Pipe Selection: Use this table to determine offset pipe lengths.
Pipe Length
(L)
5” x 8” Venting For specific instructions on venting components - visit the
manufacturers website listed below.
Run (X) Rise (Y)
0” (0mm) 5-11/16” (144mm) 15-5/16” (389mm) Simpson Direct Vent Pro: www.duravent.com
6” (152mm) 8-13/16” (224mm) 18-7/16” (468mm) Selkirk Direct-Temp: www.selkirkcorp.com
9” (229mm) 10-15/16” (278mm) 20-9/16” (522mm) Metal-Fab Sure Seal: www.mtlfab.com
12” (305mm) 13” (330mm) 22-11/16” (576mm) Industrial Chimney Company: www.icc-rsf.com
24” (610mm) 21-7/16” (697mm) 31-1/16” (789mm) Note: Horizontal runs of vent must be level, or have a 1/4”
rise for every 1 foot of run towards the termination.
Never allow the vent to run downward - this could cause high
temperatures and may present a possible fire hazard.
36” (914mm) 29-13/16” (757mm) 39-7/16” (1002mm)
48” (1219mm) 38-1/4” (972mm) 47-7/8” (1216mm)
L676 & L900 DIRECT VENT FIREPLACE
• A Vent Guard is required when the AstroCap is installed above grade at 7 feet or lower.
• The Simpson Dura-Vent and Selkirk Direct Temp horizontal termination caps cannot be used in any applications.
• Only the AstroCap XL and Snorkels are certified for horizontal terminations.
IMPORTANT NOTE

Regency®L900-1 Direct Vent Gas Fireplace 19
INSTALLATION
VENTING ARRANGEMENTS
ALLOWABLE HORIZONTAL TERMINATIONS
The diagram shows all allowable combinations of vertical runs with horizontal terminations, using one 90otwo 45o elbows equal one 90oelbow).
Note: Must use optional rigid pipe adapter (Part# 770-994) when using Rigid Pipe Venting Systems.
• Maintain clearances to combustibles as listed in "Clearances" section
• Horizontal vent must be supported every 3 feet.
• Firestops are required at each floor level and whenever passing through a wall.
• A wall thimble is mandatory for all horizontal terminations due to high temperatures.
VENT RESTRICTOR SETTING:
Vent restrictor factory set, no adjustment required unless otherwise indicated.
Refer to the "Vent Restrictor Position" section for details on how to change the vent restrictor from the factory setting of Set 1 to
Set 2 or Set 4 if required.
Note: Regency®Direct Vent System (Flex) is only approved for horizontal terminations.
INSTALLATION