Vermont Castings DVM Series User manual

752523
DVM MDV cover
20306747 11/ 14 Rev. 1
• 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.
– Leave the building immediately.
– 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.
WARNING: Improper installation, adjustment,
alteration, service or maintenance can cause
injury or property damage. Refer to this manual.
For assistance or additional information consult
a qualified installer, service agency or the
gas supplier.
This appliance may be installed in an aftermarket,*
permanently located, manufactured home (USA
only) or mobile home, where not prohibited by
local codes.
This appliance is for use only with the type of gas
indicated on the rating plate. This appliance is
not convertible for use with other gases, unless
a certied kit is used.
* Aftermarket: Completion of sale, not for purpose of resale, from
the manufacturer.
WARNING:
FIRE OR EXPLOSION HAZARD
Failure to follow safety warnings exactly
could result in serious injury, death or
property damage.
DVM Series Direct Vent Gas Fireplace
Installation and Operating Instructions
Models: 500DVM(N/P)SCSB, 600DVM(N/P)SCSB
DANGER
HOT GLASS WILL
CAUSE BURNS.
DO NOT TOUCH GLASS
UNTIL COOLED.
NEVER ALLOW CHILDREN
TO TOUCH GLASS.
Un panneau vitré chaud peut
causer des brûlures.
Laissez refroidir le panneau
vitréavant d’y toucher.
Ne laisser jamais les enfants
toucher le panneau vitré.
A barrier designed to reduce the risk of burns from
the hot viewing glass is provided with this
appliance and shall be installed.
Une barrière visant à réduire le risque de brûlure
par le hublot chaude est fournie avec cet
appareil et doit être installé.
DANGER
INSTALLER: Leave this manual with the appliance.
CONSUMER: Retain this manual for
future reference.
CERTIFIED
S
AFETYBARRIER

220306747
DVM Series Direct Vent Gas Fireplace CONTENTS
Thank you and congratulations on your purchase of a
Vermont Castings Group Fireplace.
PLEASE READ THE INSTALLATION AND OPERATION INSTRUCTIONS BEFORE USING THE APPLIANCE!
IMPORTANT: Read all instructions and warnings carefully before starting installation.
Failure to follow these instructions may result in a possible re hazard and will void the warranty.
Important Safety Information .....................................3
Code Approval ........................................................4
Product Features .........................................................5
 ProductSpecications ............................................5
Gas Pressures ........................................................5
 GasSpecications&OriceSize ...........................5
High Elevations .......................................................5
Fireplace & Framing Dimensions...............................6
Pre-Installation Information ........................................7
Before You Start......................................................7
Fireplace Framing ...................................................7
Fireplace Location...................................................8
Clearances..............................................................9
Secure Fireplace...................................................10
Finishing Material..................................................10
Venting Installation ....................................................11
Optional Top Vent Application ............................... 11
Installation Precautions.........................................12
Installation Clearances..........................................13
Installation Planning..............................................14
 HorizontalandVerticalTermination.......................14
Termination Location.............................................15
Termination Clearances ........................................16
How to Use a Vent Graph .....................................16
Rear Wall Vent Installation ...................................17
 HorizontalwithVerticalRiseConguation ............18
 HorizontalwithVerticalRiseInstallation ...............20
Below Grade Installation .......................................21 .
 VerticalThrough-the-RoofConguration...............22
Vertical Through-the-Roof Installation...................23
Installation for Vertical Termination .......................23
Flat Ceiling Installation..........................................23
Flex Venting Installation ...........................................25
5" x 8" Flex Vent Pipe ...........................................25
4" x 7" Flex Vent Pipe ...........................................27
Fireplace Installation .................................................28
Check Gas Type....................................................28
Gas Pipe Installation .............................................28
Check Gas Pressure.............................................30
Electrical Wiring ....................................................30
Junction Box Wiring ..............................................31
Command Center Wall Installation........................31
Wall Switch Installation .........................................31
Signature Command System Wiring Diagram ......32
BLOTSDVC Command Blower .............................33
Final Installation ........................................................34
Eyebrow Installation and Glass Removal .............34
Brick Installation....................................................35
Logs and Rock Wool Installation...........................36
Safety Barrier Installation......................................38
Operating Instructions ..............................................39
Operating Instructions...........................................40
To Turn Off Gas to Appliance ................................40
Signature Command System....................................41
Features................................................................41
Battery Installation ................................................41
 SystemConguration............................................42
Cold Climte Option................................................43
Functions/Operation..............................................43
Command Center Operations ...............................43
Self Diagnostics Chart ..........................................43
Cleaning and Maintenance .......................................44
Burner, Pilot and Control Compartment ................44
Burner Flame ........................................................44
Vent System..........................................................45
Glass Door ............................................................45
Logs ......................................................................45
Rock Wool ............................................................45
Troubleshooting ........................................................46
General .................................................................46
Signature Command System ................................47
Replacement Parts ....................................................48
Firebox Components.............................................48
Signature Command System ................................50
Logs ......................................................................52
Additional Accessories .........................................53
Vent Components for 4" x 6
5⁄8"..............................54
Vent Components for 5" x 8".................................55
Vent Components for 4" x 7".................................56
For Massachusetts Residents Only .........................58
Warranty .....................................................................59
Efciencies.................................................................60

3
20306747
DVM Series Direct Vent Gas Fireplace
4. Neverinstallthereplace
• in a recreational vehicle
• wherecurtains, furniture, clothing,or other am-
mable objects are less than 42" from the front, top,
orsidesofthereplace
• inhightrafcareas
• in windy or drafty areas
5. This replace reaches high temperatures. Keep
children and adults away from hot surfaces to avoid
burns or clothing ignition. Fireplace will remain hot
for a time after shutdown. Allow surfaces to cool
before touching.
6. Carefully supervise young children when they are
in the room with replace.
7. Donotmodifyreplaceunderanycircumstances.Any
parts removed for servicing must be replaced prior to
operatingreplace.
8. Turnreplaceoffandletcoolbeforeservicing,install-
ing,orrepairing.Onlyaqualiedservicepersonshould
install, service, or repair the replace. Have burner
system inspected annually by a qualified service
person.
9. You must keep control compartments, burners, and
circulating air passages clean. More frequent cleaning
may be needed due to excessive lint and dust from
carpeting, bedding material, pet hair, etc. Turn off the
gasvalveandpilotlightbeforecleaningreplace.
10. Haveventingsysteminspectedannuallybyaqualied
service person. If needed, have venting system cleaned
or repaired. Refer to Cleaning and Maintenance,Page
48.
11. Keeptheareaaroundyourreplaceclearofcombus-
tiblematerials,gasoline,andotherammablevaporand
liquids.Donotrunreplacewheretheseareusedor
stored. Do not place items such as clothing or decora-
tionsonoraroundreplace.
12.Donotusethisreplacetocookfoodorburnpaperor
other objects.
13. Neverplaceanythingontopofreplace.
IMPORTANT SAFETY INFORMATION
Thisreplaceisaventedproduct.Thisreplacemustbe
properlyinstalledbyaqualiedserviceperson.Theglass
door must be properly seated and sealed. If this unit is not
properlyinstalledbyaqualiedservicepersonwithglass
door properly seated and sealed, combustion leakage can
occur.
CARBON MONOXIDE POISONING: Early signs of carbon
monoxidepoisoningaresimilartotheuwithheadaches,
dizzinessand/ornausea.Ifyouhavethesesigns,there-
place may not have been installed properly. Get fresh air
atonce!Have thereplace inspectedandserviced bya
qualiedserviceperson.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 inuence of alcohol, and those at high
altitudes.
Propane/LP gas and natural gas are both odorless. An
odor-making agent is added to each of these gases. The
odor helps you detect a gas leak. However, the odor added
to these gases 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replace.
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unlessacertied
kit is used.
2. For propane/LP replace, do not place propane/LP
supply tank(s) inside any structure. Locate propane/
LP supply tank(s) outdoors. To prevent performance
problems, do not use propane/LP fuel tank of less than
100 lbs. capacity.
3. 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.
INSTALLER
Please leave these instructions with the appliance.
OWNER
Please retain these instructions for future reference .
• Read this owner’s manual carefully and completely before trying to assemble, operate, or service this
replace.
• Any change to this replace or its controls can be dangerous.
• Improper installation or use of this replace can cause serious injury or death from re, burns, explosions,
electrical shock and carbon monoxide poisoning.
WARNING

420306747
DVM Series Direct Vent Gas Fireplace IMPORTANT SAFETY INFORMATION
14. Do not use any solid fuels (wood, coal, paper, card-
board, etc.) in this replace. Use only the gas type
indicated on rating plate.
15. This 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.
16. Donotobstructtheowofcombustionandventilation
air in any way. Provide adequate clearances around
air openings into the combustion chamber along with
adequate accessibility clearance for servicing and
proper operation.
17. When the appliance is installed directly on carpeting,
tileorothercombustiblematerialotherthanwoodoor-
ing, you must set appliance on a metal or wood panel
or hearth pad extending the full width and depth of the
appliance.
18.Do not use replace if any part has been under or
exposedto,water.Immediatelycallaqualiedservice
technician to inspect the appliance and replace any
part of the control system and any gas control which
has been submerged in water.
19. Donotoperatereplaceifanylogisbroken.
20. Do not use a blower insert, heat exchanger insert, or
any other accessory not approved for use with this
replace.
21. Donotoperatethereplacewithglassdoorremoved,
cracked, or broken.
22. Massachusetts residents only refer to Page 66.
CODE APPROVAL
Direct Vent type appliances draw all combustion air from
outside of the dwelling through the vent pipe.
These appliances have been tested by CSA and found to
comply with the established standards for DIRECT VENT
GAS FIREPLACE HEATERS in the USA and Canada as
follows:
LISTED VENTED GAS FIREPLACE HEATER
ANSI Z21.88-2014_CSA 2.33-2014 STANDARDS
A manufactured home (USA only) or mobile home OEM
installation must conform with the Manufactured Home
Construction and Safety Standard, Title 24 CFR, Part
3280, or when such a standard is not applicable, the
Standard for Manufactured Home Installations, ANSI/
NCSBCS A225.1, or Standard for Gas Equipped Recre-
ational Vehicles and Mobile Housing, CSA Z240.4.
Nous recommandons que nos
appareils de chauffage au gaz
soient installés et entretenus par
des professionnels qui ont été
accrédités aux È.U. par le National
Fireplace Institute ® (NFI) comme
étant des spécialistes du NFI en
matièred’appareils de chauffage
au gaz.
IMPORTANT:
PLEASE READ THE FOLLOWING CAREFULLY
Itisnormalforreplacesfabricatedofsteeltogiveoff
some expansion and/or contraction noises during the start
up or cool down cycle. Similar noises are found with your
furnace heat exchanger or car engine.
IMPORTANT:
PLEASE READ THE FOLLOWING CAREFULLY
Itisnotunusualforgasreplacetogiveoffsomeodor
thersttimeitisburned.Thisisduetothemanufacturing
process.
Please ensure that your room is well ventilated during
burn off — open all windows.
It is recommended that you burn your replace for at
leastten(10)hoursthersttimeyouuseit.Placethe
fan switch in the “OFF” position during this time.
DANGER
HOT GLASS WILL
CAUSE BURNS.
DO NOT TOUCH GLASS
UNTIL COOLED.
NEVER ALLOW CHILDREN
TO TOUCH GLASS.
Un panneau vitré chaud peut
causer des brûlures.
Laissez refroidir le panneau
vitréavant d’y toucher.
Ne laisser jamais les enfants
toucher le panneau vitré.
A barrier designed to reduce the risk of burns from
the hot viewing glass is provided with this
appliance and shall be installed.
Une barrière visant à réduire le risque de brûlure
par le hublot chaude est fournie avec cet
appareil et doit être installé.
DANGER
Never connect unit to private (non-utility) gas wells. This
gas is commonly known as wellhead gas.
WARNING

5
20306747
DVM Series Direct Vent Gas Fireplace
PRODUCT FEATURES
• This appliance has been certied for use with either
natural or propane gas. See appropriate data plates.
• This appliance is not for use with solid fuels.
• The appliance is approved for bedroom or bedsitting
room installations.
• The appliance must be installed in accordance with local
codes if any. If none exist use the current installation
code. ANSI Z223.1/NFPA 54 in the USA, CSA B149 in
Canada.
• This appliance is mobile home approved.
• The appliance must be properly connected to a venting
system.
• The appliance is not approved for closet or recessed
installations.
PRODUCT SPECIFICATIONS
FP2407
DVM/MDV features
Off/Pilot/On Knob
Optional Remote Receiver
Figure 1 -
500DVM and 600DVM Fireplace
(Millivolt Unit Shown —
Also Available with
Signature Command System)
Hi/Lo Knob
Blower Control
On/Off/RS Switch Ignitor
1/2"
Nailing
Flange
5/8" Nailing
Flange
1/2"
Nailing
Flange
Eyebrow
Insulation
Board
Standoff
FP2407
GAS PRESSURES
Model Fuel
Max.
Input
BTU/h
Min.
Input
BTU/h
Orice
Size
500DVMNSC Nat. 30,000 21,500 7/64"
600DVMNSC Nat. 32,000 22,000 #34
500DVMPSC LP 30,000 23.500 #51
600DVMPSC LP 32,000 26,000 #50
GAS SPECIFICATIONS & ORIFICE SIZE
HIGH ELEVATIONS
InputratingsareshowninBTUperhourandarecertied
without deration for elevations up to 4,500 feet (1,370 m)
above sea level.
For elevations above 4,500 feet (1,370 m) in USA, installa-
tions must be in accordance with the current ANSI Z223.1/
NFPA 54 and/or local codes having jurisdiction.
In Canada, please consult provincial and/or local authori-
ties having jurisdiction for installations at elevations above
4,500 feet (1,370 m).
Do not remove insulation board.
WARNING
Natural Propane (LP)
Inlet Minimum 4.0” w.c. 11.0” w.c.
Inlet Maximum 14.0” w.c. 13.0” w.c.
Manifold Pressure 3.5” w.c. 10.0” w.c.

620306747
DVM Series Direct Vent Gas Fireplace
A
B
G
H
I
K
D
L
M
N
R
S - Min. Rough Opening Width
T
U
1/2”
5/8”
1/2”
5/8”
V
V
W
Min. Rough
Opening
Depth
1/2” or 5/8”
E
F
2¹⁄₂”
(64 mm)
5”
2”
Min. Rough
Opening
Height
J
C
O
P
Q
752525
DVM MDV dims
Ref. 500DVM 600DVM
A 41" (1041 mm) 47" (1194 mm)
B 465⁄16" (1176 mm) 465⁄16" (1176 mm)
C 403⁄8" (1026 mm) 403⁄8" (1026 mm)
D 323⁄16" (818 mm) 383⁄16" (970 mm)
E 36" (914 mm) 42" (1067 mm)
F 3215⁄16" (837 mm) 3815⁄16" (989 mm)
G 427⁄16" (1079 mm) 427⁄16" (1079 mm)
H 341⁄2" (876 mm) 341⁄2" (876 mm)
I 233⁄16" (589 mm) 233⁄16" (589 mm)
J 345⁄8" (880 mm) 345⁄8" (880 mm)
K 161⁄8" (410 mm) 191⁄8" (486 mm)
L 149⁄16" (370 mm) 149⁄16" (370 mm)
M 203⁄4" (527 mm) 203⁄4" (527 mm)
N 225⁄16" (567 mm) 225⁄16" (567 mm)
O 33⁄8" (86 mm) 33⁄8" (86 mm)
P 73⁄8" (187 mm) 73⁄8" (187 mm)
Q 121⁄16" (306 mm) 121⁄16" (306 mm)
R 461⁄2" (1181 mm) 461⁄2" (1181 mm)
S 421⁄16" (1068 mm) 481⁄16" (1221 mm)
T 203⁄8" (516 mm) 203⁄8" (516 mm)
U 731⁄2" (1867 mm) 791⁄2" (2019 mm)
V 52" (1321 mm) 561⁄4" (1429 mm)
W 363⁄4" (934 mm) 393⁄4" (1010 mm)
Figure 2 -
Fireplace & Framing Dimensions
FIREPLACE & FRAMING DIMENSIONS

7
20306747
DVM Series Direct Vent Gas Fireplace
PRE-INSTALLATION INFORMATION
BEFORE YOU START
Read this homeowner manual thoroughly and follow all
instructions carefully. Inspect all contents for shipping
damage and immediately inform your dealer if any damage
is found. Do not install any unit with damaged, incomplete,
or substitute parts. Check your packing list to verify that
all listed parts have been received. You should have the
following:
•Fireplace (Firebox and Burner System)
•Log Set • Eyebrow
• Rock Wool • Front Floor Brick Assembly
• White Toggle Switch • Fasteners
• Switch Cover Plate • Restrictor Plate/Disc (2)
• Noncombustible Panel
ITEMS REQUIRED FOR INSTALLATION
• Phillips Screwdriver • Framing Materials
• Hammer • Wall Finishing Materials
• Saw and/or saber saw • Level
• Measuring Tape • Pliers
• Electric Drill and Bits • Square
• Pipe Wrench • Tee Joint
• Caulking Material (noncombustible)
• Fireplace Surround Material (noncombustible)
• Piping Complying with Local Codes
• Pipe Sealant Approved for use with Propane/LPG
(Resistant to sulfur compounds)
NOTE
COLD CLIMATE INSULATION
If you live in a cold climate, seal all cracks around
your appliance, and wherever cold air could enter the
room, with noncombustible material. It is especially
important to insulate the outside chase cavity
betweenthestudsandundertheooronwhichthe
appliancerests,iftheoorisabovegroundlevel.
FIREPLACE FRAMING
Firebox framing can be built before or after the appliance
issetin place.Referto Figure2 forreboxdimensions
and framing. Construct rebox framing following Figure
2foryourspecicinstallationrequirements.Theframing
headersmayrestonthetopofthereboxstandoffs.
Thereboxmaybeinstalleddirectlyonacombustibleoor
or raised on a platform of an appropriate height. When
thereboxisinstalleddirectlyoncarpeting,tile,orother
combustiblematerial,otherthanwoodooring,therebox
shall be installed on a metal or wood panel extending the
full width and depth of the enclosure.
NOTE: Refer to cold climate pilot information on Page 43
for more information on standing pilot vs. intermittent pilot
options.
Donotllspacesaroundreboxwithinsulationorother
materials.Thiscouldcauseare.
WARNING

820306747
DVM Series Direct Vent Gas Fireplace PRE-INSTALLATION INFORMATION
FIREPLACE LOCATION
Plan for the installation of your appliance. This includes determining where the unit is to be installed,
theventcongurationtobeused,framingandnishingdetails,andwhetheranyoptionalaccessories
(i.e. blower, wall switch, or remote control) are desired. Consult your local building code agency to
ensure compliance with local codes, including permits and inspections.
The following factors should be taken into consideration:
•Clearance to side-wall, ceiling, woodwork, and windows. Minimum clearances to combustibles
must be maintained.
• Thisreplacemaybeinstalledalongawall,acrossacorner,oruseanexteriorchase.Refer to
Figure 3 for suggested locations.
• Locationshouldbeoutofhightrafcareasandawayfromfurnitureanddraperiesduetoheat
from appliance.
• Neverobstructthefrontopeningofthereplace.
•Do not installinthevicinitywheregasolineorotherammableliquidsmaybestored.
•Vent pipe routing. See Venting section found in this manual for allowable venting congura-
tions.
•These units can be installed in a bedroom. Refer to the National Fuel Gas Code ANSI Z233.1/
NFPA 54 — (current edition), the Uniform Mechanical Code — (current edition), and Local Build-
ingCodesforspecicinstallationrequirements.
Figure 3 -
Locating Gas Fireplace
** Island (C) and room divider (D) installation is possible as long
asthehorizontalportionofventsystem(X)doesnotexceed
20'. Refer to Installing Horizontal Termination Conguration on
Pages 19.
* Whenyouinstallyourreplacein(D)roomdivideror(E)at
on wall corner positions (Y), a minimum of 6" clearance must
bemaintainedfromperpendicularwallandfrontofreplace.
Y
EAB
C
D
F
YB
X
LU584-1
Locating unit
2/4/99 djt
A Flat on Wall
B Cross Corner
C Island**
D Room Divider*
E Flat on Wall Corner*
F Chase Installation
Y 4" Minimum

9
20306747
DVM Series Direct Vent Gas Fireplace
PRE-INSTALLATION INFORMATION
CLEARANCES TO COMBUSTIBLES
72”
(1829 mm)
Minimum
12”
(305 mm)
Minimum
6”
(152 mm)
Min.
FP2408
DVM MDV clearances
12”
(305 mm)
Maximum Depth
Ceiling
Side Wall
Combustible
Mantel
FP2408
Figure 4 -
Ceiling and Side Wall Clearances
12”
10”
8”
6”
4”
2¹⁄₂”
12"
10³⁄₄”
9¹⁄₂”
8¹⁄₄”
7” 6”
FP2409
Mantel clearance
Top of Fireplace
Opening
Stud
Header
Standoff
Insulation
Board
FP2409
Side View
45°
1”
2¹⁄₂”
3”
5”
6”
1¹⁄₂”
3¹⁄₂”
4¹⁄₂”
FP2410
mantel leg clearance
Finish Wall
Combustible
Material Area
FP2410
Figure 5 -
Mantel Clearances
MANTEL CLEARANCES
NOTE: The combustible area above the facing must not protrude
more than 1/2" from the facing. If it does, it is considered a mantel
and must meet the mantel requirements listed in this manual.
Followtheseinstructionscarefullytoensuresafeinstallation.Failuretofollowinstructionsexactlycancreateare
hazard.
Theappliancecannotbeinstalledonacarpet,tileorothercombustiblematerialotherthanwoodooring.Ifinstalledon
carpetorvinylooring,theapplianceshallbeinstalledonametal,woodornoncombustiblematerialpanelextending
full width and depth of the appliance.
WARNING
Never obstruct or modify the air inlet or outlet grilles
(louvers).Thismaycreatearehazard.
WARNING

10 20306747
DVM Series Direct Vent Gas Fireplace
SECURE FIREPLACE TO FLOOR
OR FRAMING
Thereplacemustbesecuredtotheoorand/ortoframing
studs as shown in Figure 6 . Use two (2) wood screws or
masonry/concretescrewstosecurereplacetotheoor.
Usefour(4)screwstoattachreplacetoframing.Theside
bracketsornailingangesaredesignedtoaccommodate
two thickness of wall boards (1/2" or 5/8").
PRE-INSTALLATION INFORMATION
Figure 6 -
Secure Fireplace to Floor and Framing Studs
FP2411
secure fireplace
Screws
Screws
Screws
Screws
Nail Flange
Nail
Flange
Framing
FP2411
Insulation Board
Do not remove insulation board.
WARNING
FINISHING MATERIAL
NOTE: Any remote wiring (i.e. remote control, wall switch,
andoptionalfan)mustbedonepriortonalnishingto
avoid costly reconstruction.
Only noncombustible materials (i.e. brick, tile, slate, steel,
orother materials witha ULrerating of Zero)may be
used to cover the black surface of the appliance. A 300°F
minimum adhesive may be used to attach facing materials
to the black surface. If joints between the nished wall
andthereplacesurroundaresealed,a300°Fminimum
sealant material (General Electric RTV103 or equivalent)
must be used.

11
20306747
DVM Series Direct Vent Gas Fireplace
VENTING INSTALLATION
OPTIONAL TOP VENT APPLICATION
The appliance is shipped as a rear vent unit. If the installa-
tionlayoutrequirestheunittobeatopventconguration
the appliance can be converted by following the steps
below.
When removing and retting the plates and adapter be
suretheassociatedgasketsareundamagedandretted
as required.
1.Remove the eight (8) screws securing the ue pipe
adaptertothereplacebody.Figure 7
2.Set the ue pipe adapter aside, complete with the
gasket. Do not damage the gaskets as the adapter and
gasketmustberetted.
3.Removetheeight(8)screwssecuringtheuepipecover
to the top of the intake box and remove the cover and
gasket. Figure 7
FP1991
remove screws
Flue Pipe
Cover
Flue Pipe
Adapter
Screws
FP1991
4.Remove six (6) screws securing the ue pipe to the
back of the intake box and remove the pipe and gasket.
Figure 8
5.Replaceuepipetotopofrebox.Ensurethegasketis
in place and undamaged. Secure with six (6) screws.
Figure 9
6.Placetheuepipecoverandgasketremovedinstep
3overtheueopeninginbottomoftheintakebox.
Figure 7 -
Remove 16 Screws from Flue Pipe
Adapter and Flue Pipe Cover
Figure 8 -
Remove Flue Pipe
FP1992
remove flue pipe
Screws
Flue Cover
Flue Pipe
FP1992
FP1993
attach flue pipe
Figure 9 -
Attach Flue Pipe to Top
Vent Congurations
Flue Pipe
Screws
FP1993
7.Rettheuepipeadapterandgaskettothetopofre-
place. Secure the adapter with six (6) screws removed
in Step 1.
After conversion to top vent conguration the 5" (127
mm)uepipeshouldbeconcentricwiththe8"(203mm)
outer collar within 1/4".
WARNING

12 20306747
DVM Series Direct Vent Gas Fireplace
INSTALLATION PRECAUTIONS
Consult local building codes before beginning the
installation. The installer must make sure to select the
proper vent system for installation. Before installing vent
kit,theinstallermustreadthisreplacemanualandvent
kit instructions.
Onlyaqualiedinstaller/servicepersonshouldinstallthe
venting system. The installer must follow these safety rules:
•Wear gloves and safety glasses for protection.
•Use extreme caution when using ladders or when on
rooftops.
• Be aware of electrical wiring locations in walls and
ceilings.
The following actions will void the warranty on your venting
system:
• Installation of any damaged venting component.
• Unauthorizedmodicationoftheventingsystem.
• Installation of any component part not manufactured or
approved by Vermont Castings Group
• Installation other than permitted by these instructions.
NOTICE
Failure to follow these instructions will void
the warranty.
VENTING INSTALLATION
Read all instructions completely and thoroughly before
attempting installation. Failure to do so could result in
serious injury, property damage or loss of life. Operation
of improperly installed and maintained venting system
could result in serious injury, property damage or loss
of life.
WARNING

13
20306747
DVM Series Direct Vent Gas Fireplace
VENTING INSTALLATION
FP2412
vent pipe clearance
*3"
**1"
**1"
*3” **1”
**1”
34⁵⁄₈”
(880 mm)
48¹⁄₄”
(1226 mm)
FP2412
Figure 10 -
Combustible Clearances for Vent Pipe * A minimum of 3" clearance to the top is
requiredalonghorizontallengthuntiluepipe
penetrates outside wall.
** A minimum 1" clearance to combustibles
permittedallaroundueatoutsidewall
Horizontalsectionsofthisventsystemrequireaminimum
of3”clearancestocombustiblesatthetopoftheue
and1”clearanceatthesidesandbottomuntiltheue
penetrates the outside wall. A minimum 1” clearance all
aroundtheueisacceptableatthispointofpenetration.
If vertical rise is 71/2” feet or higher when top venting,
the clearance to combustibles is 1” on all sides of the
horizontalrun.
Vertical sections of this vent system require a minimum
of 1” clearance to combustibles on all sides of the pipe.
WARNING
Thisreplacemustbeventedtotheoutside.Theventing
system must NEVER be attached to a chimney serving
a separate solid fuel burning appliance. Each gas
appliance must use a separate vent system. Do not use
common vent systems.
WARNING

14 20306747
DVM Series Direct Vent Gas Fireplace VENTING INSTALLATION
INSTALLATION PLANNING
There are two basic types of direct-vent installation:
•HorizontalTermination
•Vertical Termination
It is important to select the proper length of vent pipe for
the type of termination you choose. It is also important to
note the wall thickness.
FOR HORIZONTAL TERMINATION
Selecttheamountofverticalrisedesired.Allhorizontalrun
of venting must have 1/4" rise for every 12" of run towards
the termination below 71⁄2feet of vertical rise. With 71⁄2feet
ormoreverticalriseofftopofreplace,thehorizontalrun
may be level. NEVER run vent piping down.
Horizontalventingwhichincorporatesthetwistlockpipemust
be installed on a level plane without an inclining or declining
slope.
Youmayuseuptothree90°elbowsinthisventcongura-
tion. See Horizontal Termination Congurations on Pages
15 and 16.
FOR VERTICAL TERMINATION
Measurethedistancefromthereplaceoortotheceil-
ing. Add the ceiling thickness, the vertical rise in an attic
orsecondstory,andallowforsufcientventheightabove
the roof line.
NOTE: You may use two 45° elbows in place of a 90°
elbow. You must follow rise to run ratios when using
45° elbows. The appliance is approved for use with
three 90° elbows maximum or a combination of 90°
and 45° elbows up to a maximum of 270°.
NOTICE
When installing in a chase, you should insulate
the chase as you would the outside walls of
your home. This is especially important in cold
climates. Insulation should be considered a
combustible material. Maintain proper clearances
to all combustible materials.
NOTICE
Treatmentofrestopsandconstructionofthechase
may vary from building type to building type. These
instructions are not substitutes for the requirements
of local building codes. You must follow all local
building codes.
Fortwo-storyapplications,restopsarerequiredateach
oorlevel.Ifanoffsetisneededintheattic,additionalpipe
and elbows will be required.
You may use a chase with a vent termination with exposed
pipe on the exterior of the house. See Installing Vent
System in a Chase below. If pipe is enclosed in chase, it
is not exposed.
It is very important that the venting system maintain its bal-
ancebetweenthecombustionairintakeandtheuegas
exhaust. Certain limitations apply to vent congurations
and must be strictly followed.
INSTALLING A VENT SYSTEM IN AN
OUTSIDE CHASE
A chase is a vertical boxlike structure built to enclose
venting that runs along the outside of a building. A chase
is required for such venting.
Never run the vent pipe down. This may cause excessive
temperatureswhichcouldcauseare.
WARNING
Always maintain minimum clearances around vent
systems. The minimum clearance to combustibles for
horizontalventpipeare3”atthetopand1”atthesides
and bottom of the vent system until the pipe penetrates
the nearest vertical wall (1” required). A 1” minimum
clearance all around the pipe must be maintained at
outside wall and on vertical runs. Do not pack the open
air spaces with insulation or other materials. This could
causehightemperaturesandmaypresentarehazard.
*Unless the vertical run is 71/2 feet or higher (top vent
unitsonly),theclearancesforthehorizontalrunis1”at
the top.
WARNING

15
20306747
DVM Series Direct Vent Gas Fireplace
VENTING INSTALLATION
V
X
X
X
D
E
B
B
B
C
B
M
B
A
J
K
F
L
VENT TERMINATION AIR SUPPLY INLET AREA WHERE TERMINAL IS NOT PERMITTED
H
I
Fixed
Closed
Operable
Operable Fixed
Closed
B
CFM145a
DV Termin Location
5/01/01 Rev. 12/05/01
sta
INSIDE
CORNER DETAIL
A
G
CFM145a
V
V
V
VV
V
V
V
TERMINATION LOCATION
1 In accordance with the current CSA-B149 Installation Codes
2 In accordance with the current ANSI Z223.1/NFPA 54 National Fuel
Gas Codes
† A vent shall not terminate directly above a sidewalk or paved
driveway which is located between two single family dwellings and
serves both dwellings
‡ Only permitted if veranda, porch, deck or balcony is fully open on a
minimum2sidesbeneaththeoor.
NOTE: 1. Local codes or regulations may require different
clearances.
2. The special venting system used on Direct Vent Fireplaces are
certiedaspartoftheappliance,withclearancestestedand
approved by the listing agency.
3. Vermont Castings Group assumes no responsibility for the
improper performance of the appliance when the venting
system does not meet these requirements.
Figure 8 –
Termination Locations
CANADIAN INSTALLATIONS1US INSTALLATIONS2
A = Clearance above grade, veranda, porch,
deck or balcony
12" (30cm) 12" (30cm)
B = Clearance to window or door that may be
opened
6" (15cm) for appliances <10,000 BTU/h
(3kW)
12" (30cm) for appliances >10,000 BTU/h
(3kW) and <100,000 BTU/h (30kW)
36" (91cm) for appliances >100,000 BTU/h
(30kW)
6" (15cm) for appliances <10,000 BTU/h
(3kW)
9" (23cm) for appliances >10,000 BTU/h
(3kW) and <50,000 BTU/h (15kW)
12" (30cm) for appliances >50,000 BTU/h
(15kW)
C = Clearance to permanently closed window 12" (305mm) recommended to prevent
window condensation
12" (305mm) recommended to prevent
window condensation
D=Verticalclearancetoventilatedsoft
located above the terminal within a hor-
izontaldistanceof2'(610mm)fromthe
center line of the terminal
18" (458mm) 18" (458mm)
E=Clearancetounventilatedsoft 12" (305mm) 12" (305mm)
F = Clearance to outside corner see next page see next page
G = Clearance to inside corner see next page see next page
H = Clearance to each inside of center line
extended above meter/regulator assembly
3' (91cm) within a height of 15' (5m) above
the meter/regulator assembly
3' (91cm) within a height of 15' (5m) above
the meter/regulator assembly
I = Clearance to service regulator vent outlet 3' (91cm) 3' (91cm)
J = Clearance to non-mechanical air supply
inlet to building or the combustion air inlet
to any other appliance
6" (15cm) for appliances <10,000 BTU/h
(3kW)
12" (30cm) for appliances >10,000 BTU/h
(3kW) and <100,000 BTU/h (30kW)
36" (91cm) for appliances >100,000 BTU/h
(30kW)
6" (15cm) for appliances <10,000 BTU/h
(3kW)
9" (23cm) for appliances >10,000 BTU/h
(3kW) and <50,000 BTU/h (15kW)
12" (30cm) for appliances >50,000 BTU/h
(15kW)
K = Clearance to mechanical air supply inlet 6' (1.83m) 3'(91cm)aboveifwithin10'(3m)horizontally
L = Clearance above paved sidewalk or
paved driveway located on public property
7' (2.13m)†7' (2.13m)†
M = Clearance under veranda, porch, deck or
balcony
12" (30cm)‡12" (30cm)‡

16 20306747
DVM Series Direct Vent Gas Fireplace VENTING INSTALLATION
40
38
36
34
32
30
28
26
24
22
20
18
16
14
12
10
8
6
4
2
2 4 6 8 10 1214 16 1820
eg: A
FP2132
sidewall vent graph
HOW TO USE THE VENT GRAPH
The Vent Graph should be read in conjunction with the
following vent installation instructions to determine the
relationshipbetweentheverticalandhorizontaldimensions
of the vent system.
1.Determinetheheightofthecenterofthehorizontalvent
pipe exiting through the outer wall. Using this dimension
on the Sidewall Vent Graph below, locate the point
intersecting with the slanted graph line.
2. From the point of this intersection, draw a vertical line
to the bottom of the graph.
3.Select theindicateddimension,andpositionthere-
place in accordance with same.
Example: If the vertical dimension from the oor of the
replace is 11' (3.4 m) the horizontal run to the face of
the outer wall must not exceed 16' (4.9 m).
Sidewall Vent Graph showing the relationship between
verticalandhorizontaldimensionsforaDirect Ventue
system.
Dimensions in Feet
Figure 10 -
Rear Wall Venting Graph
(No Horizontal Elbows)
Horizontaldimensionfromthe
nishedoutsidewalltothecenter
ofthepipeonthereplace
Vertical Dimension From the Floor of Unit to the
CenteroftheHorizontalVentPipe
Outside Corner
Inside Corner
G =
Combustible
6" (152 mm)
Noncombustible
2" (51 mm)
F =
Combustible
6" (152 mm)
Noncombustible
2" (51 mm)
G
Balcony -
with no side wall
M =
Combustible &
Noncombustible
12" (305 mm)
M
Balcony -
with perpendicular side wall
M = 12" (305 mm)
P = 6” (152 mm)
M
F
Alcove Applications*
C
D
C
E
V
V
Combustible &
Noncombustible
E= Min. 2” (51 mm) for
non-vinyl sidewalls
Min. 12” (305 mm) for
vinyl sidewalls
O= 8’ (2.4 m) Min.
O
P
V
V
V
584-15
DMin. = Number of Termination caps x 3
CMax. = (2 / Number termination caps) x DActual
*NOTE: Termination in an alcove space (spaces open only on one side
and with an overhang) is permitted with the dimensions specied for
vinylornon-vinylsidingandsofts.1.Theremustbea3'(914mm)min-
imum between termination caps. 2. All mechanical air intakes within 10'
(1 m) of a termination cap must be a minimum of 3' (914 mm) below the
termination cap. 3. All gravity air intakes within 3' (914 mm) of a termina-
tion cap must be a minimum of 1' (305 mm) below the termination cap.
TERMINATION CLEARANCES
Termination clearances for buildings with combustible and non-combustible exteriors.
No. of
Caps Dmin.Cmax.
1 3' (914 mm) 2 x Dactual
2 6' (1.8 m) 1 x Dactual
3 9' (2.7 m) 2/3 x Dactual
4 12' (3.7 m) 1/2 x Dactual

17
20306747
DVM Series Direct Vent Gas Fireplace
REAR WALL VENT INSTALLATION
(5"x8" VENTING ONLY)
When installed as a rear vent unit this appliance may be
vented directly to a termination located on the rear wall
behind the appliance. Only an Vermont Castings Group
brand termination is allowed for this application.
• The maximum horizontal distance between the rear
of the appliance and the termination is 20" (508 m).
Figure 14.
•Only one 45° elbow is allowed in these installations.
VENTING INSTALLATION
1. Rigid vent pipes and ttings have special twist-lock
connections. Assemble the desired combination of pipe
and elbows to the appliance adapter.
Twist-lock Procedure: The female ends of the pipes
and ttings have three locking lugs (indentations).
These lugs will slide straight into matching slots on
themaleendofadjacentpipesandttings.Pushthe
pipe sections together and twist one section clockwise
approximately one-quarter turn until the sections are
fully locked. Figure 15
NOTE: Sealant is not required to assemble replace
venting. Do not use silicone sealant at the inner ue
exhaust connections.
Figure 15 -
Rigid Vent Pipe Connections
NOTE: Horizontal runs of
vent must be supported
every 3' (914 mm). Use wall
straps for this purpose.
FP1953
rigid pipe
Female
Locking Lugs
Male Slots
FP1953
2. Refer to the venting and termination instructions for
further instructions.
3. Locate and cut the vent opening in the wall. For com-
bustiblewallsrstframeinopening.
Combustible Interior Walls: Cut a 121⁄2"H x 101⁄2" W (318
x 267 mm) hole through the interior wall.
Combustible Exterior Walls: Cut a 101⁄2"H x 101⁄2"W (267
x 267 mm) square hole through the exterior wall frame.
Figure 16
Noncombustible Walls: Hole opening should be 81⁄2" (216
mm) in diameter.
4. The center of the hole should align with the center line
ofthehorizontalrigidventpipeend.Allow1/4"minimum
rise per foot. Figure 16
5. Apply a bead of non-hardening mastic around the
outside edge of vent cap. Position the vent cap in the
center of hole on the exterior wall with the word “UP”
on the vent cap facing up. Insure proper clearance of
1" to combustibles is maintained. Attach the vent cap
with four wood screws supplied. Figure 17
NOTE: Replace the wood screws with appropriate fasteners
for stucco, brick, concrete, or other types of siding.
For vinyl siding, stucco, or wood exterior use vinyl siding
standoffs between vent cap and exterior wall for Duravent
or Selkirk Terminations only. The vinyl siding standoff pre-
vents excessive heat from melting the vinyl siding mate-
rial. NOTE: Vermont Castings Group Termination does
not require standoff. Bolt the vent cap to the standoff or
wall. Apply non-hardening mastic around outside edge of
the standoff instead of the vent cap assembly. Use wood
screws provided to attach the standoff. Figure 18
Figure 16 -
Exterior Wall Framing Dimensions
VO584-100
Vent Opening
2/99 djt
101/2"
(267 mm)
101/2"
(267 mm)
Combustible Wall
Framing
VO584-100
81/2"
(216 mm)
FP1188
rear wall install
20”
(508 mm)
Max.
20”
(508 mm)
Max.
Figure 14 -
Rear Vent Application,
Maximum Horizontal Distance
Rear Vent Top View
FP1188

18 20306747
DVM Series Direct Vent Gas Fireplace VENTING INSTALLATION
HOT
FP1955
horizontal vent cap
Figure 17 -
Install Horizontal Vent Cap
Vent Cap
Wood Screw
Apply Mastic to
All Sides
FP1955
HOT
FP1956
vinyl siding standoff
Figure 18 -
Installing Vinyl Siding Standoff and Termination
Apply Mastic to All Sides
Cut Vinyl Siding Away to Fit Standoff
or Termination
Wood Screw
Termination
Bolt
Nut
Standoff #1250 or 5DT-VS
(Not Required for
Vermont Castings Group
Termination)
FP1956
NOTICE
For more information, refer to the instructions
supplied with the termination.
Figure 19 -
Connect Vent Cap with Horizontal Vent Pipe
Interior Wall
Surface
Fire Stop
Assembly
Horizontal
Vent Pipe
Screw
Vent Cap
(Horizontal
Termination)
FP1957
install firestop
FP1957
HORIZONTAL WITH VERTICAL RISE
(THROUGH-THE-WALL) TERMINATION
CONFIGURATIONS
Since it is very important for the venting system to
maintain its balance between the combustion air intake
and the ue gas exhaust, certain limitations as to vent
congurations apply and must be strictly adhered to.
The Vent Graph, showing the relationship between vertical
andhorizontalsidewallventing,willhelptodeterminethe
various dimensions allowable. Refer to Page 15.
Minimum clearance between vent pipes and combusti-
ble materials is 3" on top and 1" from bottom and sides
unless otherwise noted (Exception: Outside wall with
restop: 1" all around pipes are allowed). If the vertical
run is 71⁄2 feet or more, off the top of the replace, the
clearance is 1" on all sides of the horizontal run.
When vent termination exits through foundations less than
20"belowsidingoutcrop,theventpipemustushupwith
the siding.
Itisbesttolocatethereplaceinsuchawaythatminimizes
thenumberofoffsetsandhorizontalventlength.
Thehorizontalventrunreferstothetotallengthofvent
pipefromtheuecollarofthereplace(orthetopofthe
transitionelbow)tothefaceofthenishedoutsidewallor
themountingangeofthetermination.
All rear vent through-the-wall applications
must use Vermont Castings Group-designed
5 x 8 square termination. No other manu-
facturer's termination is pemitted in this
application.
NOTICE
6. Slide the wall thimble over the vent pipe before con-
nectingthehorizontalruntotheventcap.Figure 19
7. Carefully move the fireplace with vent assembly
attached toward the wall and insert the vent pipe into
the horizontal termination.The pipe overlap should
be a minimum of 11⁄4". Apply silicone to the outer pipe
connection. Fasten all vent connections with screws
provided.
8. Slide the wall thimble against the interior wall surface
and attach with screws. Figure 19
Do not recess vent termination into any wall. This will
causearehazard.
WARNING

19
20306747
DVM Series Direct Vent Gas Fireplace
Max 20"
Max 20"
36"
(914 mm)
Max.
36"
(914 mm)
Max.
FP1177
max horizontal run
VENTING INSTALLATION
•The maximum number of 90° elbows per side wall
installation is three (3). Figure 20
• Ifa90°elbowistteddirectlyontopofthereplace
ange,themaximumhorizontalventrunbeforetheter-
mination or a vertical rise is 36" (914 mm). Figure 21
A: 10’ B: 7’
7’6”
FP1959
max run w/elbows
Figure 22 -
Maximum Vent Run with Elbows
Horizontal90°Elbow=3'Reduction
FP1959
A + B = 17' Maximum
FP1176
max 90 bends
Figure 20 -
Maximum Three (3) 90° Elbows
Per Installation
3 x 90°
Elbows
3 x 90°
Elbows
FP1176
Figure 21 -
Maximum Horizontal Run with No Rise FP1177
• Ifa90°elbowisusedinthehorizontalventrun(level
heightmaintained)thehorizontalventlengthisreduced
by 36" (914 mm) Figure 22. This does not apply if the
90° elbows are used to increase or redirect a vertical
rise. Figure 23
Example: According to the vent graph (Page 15) the
maximumhorizontal vent lengthin a systemwith a 7.5'
vertical rise is 20’ (6 m) and if a 90° elbow is required in the
horizontalventitmustbereducedto17'(5.2m).
In Figures 22 and 23, Dimension A plus B must not be
greater than 17' (5.2 m).
Figure 23 -
Horizontal Run Reduction
AB
7’6”
90°
FP2413
horz run reduct
FP2413
When installing the appliance as a rear vent unit, the 90°, 45° transition elbow attached directly to the rear of the unit
isNOTINCLUDEDin thefollowingcriteria andcalculations, andunlessspecically mentionedshould beignored
when calculating venting layouts.
WARNING

20 20306747
DVM Series Direct Vent Gas Fireplace VENTING INSTALLATION
Example: Elbow 1 = 90°
Elbow 2 = 45°
Elbow 3 = 45°
Elbow 4 = 90°
Total Angular Variation = 270°
Figure 24 -
Maximum Elbow Usage
1
2
3
4
1
2
3
4
1 + 2 + 3 + 4 = 270°
• Foreach45°elbowinstalledinthehorizontalrun,the
lengthofthehorizontalrunMUSTbereducedby18"
(457 mm). This does not apply if the 45° elbows are
installed on the vertical part of the vent system.
•The maximum number of elbow degrees in a system is
270°. Figure 24
HORIZONTAL WITH VERTICAL RISE
(THROUGH-THE-WALL) INSTALLATION
1. Locate and cut the vent opening in the wall. For com-
bustiblewallsrstframeinopening.
Combustible Interior Walls: Cut a 121⁄2"H x 101⁄2" W (318
x 267 mm) hole through the interior wall.
Combustible Exterior Walls: Cut a 101⁄2"H x 101⁄2" W (267
x 267 mm) square hole through the exterior wall frame.
Figure 25
Noncombustible Walls: Hole opening should be 81⁄2" (216
mm) in diameter.
2. The center of the hole should align with the center line
ofthehorizontalrigidventpipeend.Allow1⁄4" minimum
rise per foot. Figure 25
1. Locate and cut the vent opening in the wall. For com-
bustiblewallsrstframeinopening.
Combustible Interior Walls: Cut a 111⁄2"H x 91⁄2" W (292
x 241 mm) hole through the interior wall.
Combustible Exterior Walls: Cut a 91⁄2"H x 91⁄2"W (241 x
241 mm) square hole through the exterior wall frame.
Figure 26
Noncombustible Walls:Hole opening should be 71⁄2" (190
mm) in diameter.
2. The center of the hole should align with the center line
ofthehorizontalrigidventpipeend.Allow1⁄4" minimum
rise per foot. Figure 26
Figure 25 -
Exterior Wall Framing Dimensions
VO584-100
Vent Opening
2/99 djt
101⁄2"
(267 mm)
101⁄2"
(267 mm)
Combustible Wall
Framing
VO584-100
81⁄2"
(216 mm)
You may use a reducer from 5"x8" to 4"x65⁄8" or 4"x7"
for horizontal with vertical rise applications. ONLY
use framing instructions below when using 4"x65⁄8" or
4"x7"venting.
If the reducer is installed at the rear of the unit, you
must immediately follow with a 90° elbow for a vertical
risebeforecontinuingwithanyhorizontalrun.Thereis
aminimumtotalheightof7feetfromthereplaceoor
tothelastsectionofpipebeforehorizontalrun.Referto
graph on Page 16.
WARNING