Empire Comfort Systems DVLT series Quick start guide

INSTALLATION INSTRUCTIONS
AND
OWNER’S MANUAL
EMPIRE
EMPIRE
Comfort Systems
LUXURY DIRECT VENT
GAS FIREPLACE
MULTI-FUNCTION REMOTE SERIES
Contemporary
DVLT(36,42)FP92(N,P)-1
Traditional
DVTT(36,42)FP92(N,P)-2
UL FILE NO. MH45034
GAS-FIRED
WARNING: If not installed, operated and maintained
in accordance with the manufacturer’s instructions,
this product could expose you to substances in fuel
or from fuel combustion which can cause death or
serious illness.
This appliance may be installed in an aftermarket,
permanently located, manufactured home (USA only)
or mobile home, where not prohibited by state or local
codes.
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.
Direct Vent Zero Clearance Gas Fireplace
Installer: Leave this manual with the appliance.
Consumer: Retain this manual for future reference.
WARNING: If the information in these instructions
are not followed exactly, a re or explosion may
result causing property damage, personal injury or
loss of life.
— Do not store or use gasoline or other ammable
vapors and liquids in the vicinity of this or any
other appliance.
— WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
• Do not touch any electrical switch; do not use
any phone in your building.
• Immediately call your gas supplier from a
neighbor’s phone. Follow the gas supplier’s
instructions.
• If you cannot reach your gas supplier, call the
re department.
— Installation and service must be performed by a
qualied installer, service agency or the gas sup-
plier.
Page 1

31259-3-0114Page 2
TABLE OF CONTENTS
Important Safety Information ....................................................................................................... 3
Safety Information for Users of LP Gas ....................................................................................... 4
Requirements for Massachusetts ................................................................................................ 5
Introduction .................................................................................................................................. 6
Specications ............................................................................................................................... 7
Fireplace Dimensions .................................................................................................................. 7
Clearances ................................................................................................................................... 8
Gas Supply .................................................................................................................................. 9
Locating Fireplace ..................................................................................................................... 10
Installation ........................................................................................................................... 11 - 14
Venting Fireplace ................................................................................................................ 15 - 18
Examples - Top Vent Run ................................................................................................... 19 - 20
Termination Clearances ............................................................................................................. 21
Vent Clearances ........................................................................................................................ 22
Vent System Identication ......................................................................................................... 23
Venting Framing and Finishing ........................................................................................... 24 - 25
Horizontal Termination ............................................................................................................... 26
Vertical Termination ............................................................................................................ 27 - 28
DVTT36 Log Identication ......................................................................................................... 29
DVTT36 Log Placement ..................................................................................................... 30 - 32
DVTT42 Log Identication ......................................................................................................... 33
DVTT42 Log Placement ..................................................................................................... 34 - 37
DVLT36 and DVLT42 Glass Media Installation .......................................................................... 37
DVLT(36,42) Outer Liner Installation ......................................................................................... 38
DVTT(36,42) Outer Liner Installation ......................................................................................... 38
Multifunction Remote Lighting Instructions ................................................................................ 39
Multifunction Remote Operating Instructions ...................................................................... 40 - 41
Multifunction Remote Wiring Diagram ....................................................................................... 42
Premium Multifunction Remote Operation Instructions ...................................................... 43 - 45
Maintenance and Service ................................................................................................... 46 - 47
Accessories ............................................................................................................................... 47
Optional Mesh Fireplace Screen Installation ............................................................................. 48
Master Parts Distributor List ...................................................................................................... 49
How To Order Repair Parts ........................................................................................................ 49
DVLT(36,42)FP92 Replacement Parts List ................................................................................ 50
DVLT(36,42)FP92 Exploded View ............................................................................................. 51
DVTT(36,42)FP92 Replacement Parts List ............................................................................... 52
DVTT(36,42)FP92 Exploded View ............................................................................................. 53
Junction Box Wiring Installation Instructions ............................................................................. 54
Accent Lamp Light Replacement ........................................................................................ 54 - 55
Warranty Terms .......................................................................................................................... 56
Appliance Service History .......................................................................................................... 57
Quick Reference Guide ...................................................................................................... 58 - 59
SECTION PAGE

31259-3-0114 Page 3
DO NOT OPERATE THIS APPLIANCE WITHOUT GLASS FRONT PANEL INSTALLED
Before enclosing the vent pipe assembly, operate the appliance to ensure it is venting properly.
• If this appliance is installed directly on carpeting,
tile or other combustible material other than wood
ooring the appliance shall be installed on a metal
or wood panel extending the full width and depth of
the appliance.
The base referred to above does not mean the
reproof base as used on wood stoves. The protection
is for rugs that are extremely thick and light colored
tile.
• Children and adults should be alerted to the hazards
of high surface temperatures and should stay away
to avoid burns or clothing ignition.
• Young children should be carefully supervised when
they are in the same room as the appliance.
• Clothing or other ammable material should not be
placed on or near the appliance.
• Adequate accessibility clearances for servicing and
proper operation.
• This appliance must not share or be connected
to a ue serving a separate solid-fuel burning
appliance.
• Keep the area around your appliance clear of
combustible materials, gasoline and other ammable
vapor and liquids.
• Under no circumstances should any solid fuels
(wood, coal, paper or cardboard etc.) be used in this
appliance.
• The ow of combustion and ventilation air must not
be obstructed in any way.
• Due to high temperatures the appliance should be
located out of trafc and away from furniture and
draperies.
• The glass front or any part removed for servicing the
appliance must be replaced prior to operating the
appliance. Work should be done by a qualied service
person.
• Keep burner and control compartment clean.
• Vent cap is hot while replace is in operation.
• Installation and repair should be done by a qualied
service person. The appliance should be inspected
before use and at least annually by a qualied service
person. More frequent cleaning may be required due
to excessive lint from carpeting, bedding materials, etc.
It is imperative that control compartments, burners and
circulating air passageways of the appliance be kept
clean.
• Do not put anything around the replace that will obstruct
the ow of ventilation air.
• Clearance in accordance with local installation codes
and the requirements of the gas supplier.
• Do keep the appliance area clear and free from
combustible material, gasoline and other ammable
vapors and liquids.
• Do examine venting system periodically and replace
damaged parts.
• Do make a periodic visual check of pilot and burners.
Clean and replace damaged parts.
CAUTION
The glass used in your replace is ceramic glass. If the glass
is cracked or damaged in any way, it should be replaced
only with a complete glass frame assembly from Empire.
See parts list on Pages 50 and 52 for ordering.
• Do not use this replace if any part has been under
water. Immediately call a qualied service technician
to inspect the heater and to replace any part of the
control system and any gas control which has been
under water.
• Any safety screen or guard removed for servicing
an appliance must be replaced prior to operating the
appliance.
IMPORTANT SAFETY INFORMATION
DANGER: Indicates a hazardous situation which, if not avoided, will result in death or serious injury.
WARNING: Indicates a hazardous situation which, if not avoided, could result in death or serious injury.
CAUTION: Indicates a hazardous situation which, if not avoided, could result in minor or moderate injury.
NOTICE: Addresses practices not related to personal injury.

31259-3-0114Page 4
SAFETY INFORMATION FOR USERS OF LP-GAS
Propane (LP-Gas) is a ammable gas which can cause res
and explosions. In its natural state, propane is odorless and
colorless. You may not know all the following safety precautions
which can protect both you and your family from an accident.
Read them carefully now, then review them point by point with
the members of your household. Someday when there may not
be a minute to lose, everyone’s safety will depend on knowing
exactly what to do. If, after reading the following information,
you feel you still need more information, please contact your
gas supplier.
LP-GAS WARNING ODOR
If a gas leak happens, you should be able to smell the gas
because of the odorant put in the LP-Gas.
That's your signal to go into immediate action!
• Do not operate electric switches, light matches, use your phone.
Do not do anything that could ignite the gas.
• Get everyone out of the building, vehicle, trailer, or area. Do
that IMMEDIATELY.
• Close all gas tank or cylinder supply valves.
• LP-Gas is heavier than air and may settle in low areas such as
basements. When you have reason to suspect a gas leak, keep
out of basements and other low areas. Stay out until reghters
declare them to be safe.
• Use your neighbor’s phone and call a trained LP-Gas service
person and the re department. Even though you may not
continue to smell gas, do not turn on the gas again. Do not
re-enter the building, vehicle, trailer, or area.
• Finally, let the service man and reghters check for escaped
gas. Have them air out the area before you return. Properly
trained LP-Gas service people should repair the leak, then
check and relight the gas appliance for you.
NO ODOR DETECTED - ODOR FADE
Some people cannot smell well. Some people cannot smell
the odor of the chemical put into the gas. You must nd out if
you can smell the odorant in propane. Smoking can decrease
your ability to smell. Being around an odor for a time can affect your
sensitivity or ability to detect that odor. Sometimes other odors in
the area mask the gas odor. People may not smell the gas odor or
their minds are on something else. Thinking about smelling a gas
odor can make it easier to smell.
The odorant in LP-gas is colorless, and it can fade under some
circumstances. For example, if there is an underground leak, the
movement of the gas through soil can lter the odorant. Odorants in
LP-Gas also are subject to oxidation. This fading can occur if there
is rust inside the storage tank or in iron gas pipes.
The odorant in escaped gas can adsorb or absorb onto or into
walls, masonry and other materials and fabrics in a room. That will
take some of the odorant out of the gas, reducing its odor intensity.
LP-Gas may stratify in a closed area, and the odor intensity could
vary at different levels. Since it is heavier than air, there may be
more odor at lower levels. Always be sensitive to the slightest gas
odor. If you detect any odor, treat it as a serious leak. Immediately
go into action as instructed earlier.
SOME POINTS TO REMEMBER
• Learn to recognize the odor of LP-gas. Your local LP-Gas
Dealer can give you a “Scratch and Sniff” pamphlet. Use it to
nd out what the propane odor smells like. If you suspect that
your LP-Gas has a weak or abnormal odor, call your LP-Gas
Dealer.
• If you are not qualied, do not light pilot lights, perform service,
or make adjustments to appliances on the LP-Gas system. If
you are qualied, consciously think about the odor of LP-Gas
prior to and while lighting pilot lights or performing service or
making adjustments.
• Sometimes a basement or a closed-up house has a musty
smell that can cover up the LP-Gas odor. Do not try to light
pilot lights, perform service, or make adjustments in an area
where the conditions are such that you may not detect the odor
if there has been a leak of LP-Gas.
• Odor fade, due to oxidation by rust or adsorption on walls of
new cylinders and tanks, is possible. Therefore, people should
be particularly alert and careful when new tanks or cylinders
are placed in service. Odor fade can occur in new tanks, or
reinstalled old tanks, if they are lled and allowed to set too
long before relling. Cylinders and tanks which have been out
of service for a time may develop internal rust which will cause
odor fade. If such conditions are suspected to exist, a periodic
sniff test of the gas is advisable. If you have any question
about the gas odor, call your LP-gas dealer. Aperiodic
sniff test of the LP-gas is a good safety measure under
any condition.
• If, at any time, you do not smell the LP-Gas odorant and you
think you should, assume you have a leak. Then take the same
immediate action recommended above for the occasion when
you do detect the odorized LP-Gas.
• If you experience a complete “gas out,” (the container is under
no vapor pressure), turn the tank valve off immediately. If the
container valve is left on, the container may draw in some air
through openings such as pilot light orices. If this occurs, some
new internal rusting could occur. If the valve is left open, then
treat the container as a new tank. Always be sure your con-
tainer is under vapor pressure by turning it off at the container
before it goes completely empty or having it relled before it is
completely empty.

31259-3-0114 Page 5
REQUIREMENTS FOR MASSACHUSETTS
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 feet above nished grade in the area of the
venting, including but not limited to decks and porches, the
following requirements shall be satised:
1. INSTALLATION OF CARBON MONOXIDE DETECTORS.
At the time of installation of the side wall horizontal vented
gas fueled equipment, the installing plumber or gastter shall
observe that a hard wired carbon monoxide detector with an
alarm and battery back-up is installed on the oor level where
the gas equipment is to be installed. In addition, the installing
plumber or gastter 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 qualied 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
oor 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 days to comply
with the above requirements; provided, however, that
during said thirty 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 certied.
3. SIGNAGE. A metal or plastic identication plate shall be
permanently mounted to the exterior of the building at a
minimum height of eight 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.
(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 ue gases, but identies
“special venting systems”, the following requirements
shall be satised 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 instruction.
(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.

31259-3-0114Page 6
Instructions to Installer
1. Installer must leave instruction manual with owner after
installation.
2. Installer must have owner ll out and mail warranty card supplied
with the replace.
3. Installer should show owner how to start and operate the
replace.
This direct vent gas replace heater is designed to operate with
all combustion air being siphoned from the outside of the building
and all exhaust gases expelled to the outside of the building. The
information contained in this manual pertains to all models and gas
control systems unless otherwise noted.
WARNING
This unit is not for use with solid fuels.
Appliance Certication
This replace is design certied in accordance with American
National Standard/CSA Standard ANSI Z21.50/CSA 2.22 and by
Underwriters Laboratories as a Direct Vent Gas Fireplace and shall
be installed according to these instructions.
Consult your local building code agency, prior to installation, to ensure
compliance with local codes-including permits and inspections.
The replace, when installed, must be electrically grounded in
accordance with local codes or, in absence of local codes, with the
National Electric Code ANSI/NFPA 70 or Canadian Electric code,
CSA C22.1, if an external electrical source is utilized.
These models may be installed in a bedroom or bed-sitting room
in the U.S.A. and Canada.
Qualied Installing Agency
Installation and replacement of gas piping, gas utilization equipment
or accessories and repair and servicing of equipment shall be
performed only by a qualied agency. The term “qualied agency”
means any individual, rm, corporation or company which either in
person or through a representative is engaged in and is responsible for
(a) the installation or replacement of gas piping or (b) the connection,
installation, repair or servicing of equipment, who is experienced in
such work, familiar with all precautions required and has complied
with all the requirements of the authority having jurisdiction.
State of Massachusetts: The installation must be made by
a licensed plumber or gas tter in the Commonwealth of
Massachusetts.
The installation must conform with local codes or, in the absence of
local codes, with the National Fuel Gas Code ANSI Z223.1/NFPA
54* Natural Gas and Propane Installation Code, or CSA B149.1 in
Canada. *Available from the American National Standards Institute,
Inc. 11 West 42nd St., New York, N.Y. 10036.
WARNING
ANY CHANGE TO THIS FIREPLACE OR ITS CONTROLS
CAN BE DANGEROUS.
Improper installation or use of the replace can cause serious
injury or death from re, burns, explosions, or carbon monoxide
poisoning.
Any alteration of the original design, installed other than as
shown in these instructions or use with a type of gas not
shown on the rating plate is the responsibility of the person
and company making the change.
Important
All correspondence should refer to complete Model Number, Serial
Number and type of gas.
High Altitude
When installing this unit at an elevation above 2000 feet (in the
United States) it may be necessary to decrease the input rating by
changing the existing burner orice to a smaller size. Generally,
input should be reduced 4 percent for each 1000 feet above sea
level. However, if the heating value of the gas has been reduced,
this general rule may not apply. Check with local gas utility for proper
orice size identication.
Canadian High Altitude
Altitude: 0-4500 feet (0-1370 m)
When installing this unit at an elevation above 4500 feet (in Canada),
check with local authorities.
Consult your local gas utility for assistance in determining the proper
orice for location.
Preparation
This direct vent gas replace and its components are tested and
safe when installed in accordance with this Installation Manual.
Report to your dealer any parts damaged in shipment, specically
check glass condition. Do not install unit with damaged, incomplete,
or substitute parts. Read all instructions before starting installation
and follow these instructions carefully during installation to insure
maximum benet and safety. Failure to follow them will void your
warranty and may present a re hazard.
The warranty will be voided by, and the warranter disclaims any
responsibility for the following actions:
• Installation of any damaged fireplace or vent system
component.
• Modication of the replace or direct vent system.
• Installation other than as instructed by Empire Comfort Systems,
Inc.
• Improper positioning of the logs, glass door or decorative rock.
• Installation and/or use of any component part not manufactured
or approved by manufacturer.
INTRODUCTION

31259-3-0114 Page 7
Figure 1
Notice: Air shutter settings are factory minimum settings. Some venting congurations may require minor air shutter adjustments for
optimum performance.
SPECIFICATIONS
FIREPLACE DIMENSIONS
DVLT36 NAT
DVTT36 NAT
DVLT36 LP
DVTT36 LP
DVLT42 NAT
DVTT42NAT
DVLT42 LP
DVTT42LP
Input Btu/hr Maximum 40,000 40,000 50,000 50,000
Input Btu/hr Minimum 23,000 23,000 25,000 26,500
KWH (Maximum) 11.7 11.7 14.70 14.7
KWH (Minimum) 6.7 6.7 7.3 7.8
Orice - Front #43 1.35 mm #39 #53
Orice - Rear #43 #55 #39 #53
Air Shutter Opening - Front DVLT36 - 1/8"
DVTT36 - 3/8"
DVLT36 - 1/4"
DVTT36 - Wide Open
DVLT42 - 1/8"
DVTT42 - 3/8"
DVLT42 - Wide Open
DVTT42 - Wide Open
Air Shutter Opening - Rear DVLT36 - 1/8"
DVTT36 - 3/8"
DVLT36 - 3/8"
DVTT36 - Wide Open
DVLT42 - 1/8"
DVTT42 - 3/8"
DVLT42 - 3/8"
DVTT42 - Wide Open
Height without standoff 39-1/4" (997mm) 39-1/4" (997mm) 45-1/4" (1,149mm) 45-1/4" (1,149mm)
Width 55" (1,397mm) 55" (1,397mm) 61" (1,549mm) 61" (1,549mm)
Depth 22" (559mm) 22" (559mm) 22" (559mm) 22" (559mm)
Gas Inlet Shutoff Valve
(Pipe) 1/2 NPT 1/2 NPT 1/2 NPT 1/2 NPT
C
A
D
▲
►
▼
◄
▲
▼
J
F
A
B
◄
►
◄
◄
▲
▼
H
K
▲
▼
▼
▲
►
►
E
▲
▼
DIMENSIONS
DVTT36/DVLT36 DVTT42/DVLT42
A55
(1,397mm)
61
(1,549mm)
B39-7/8
(1,012mm)
45-7/8
(1,165mm)
C30-15/16
(785mm)
36-15/16
(938mm)
D51-5/16
(1303mm)
57-5/16
(1,445mm)
E39-5/16
(998mm)
45-5/16
(1,150mm)
F22
(558mm)
22
(558mm)
H6-3/4
(171mm)
6-3/4
(171mm)
J27-1/2
(698mm)
30-1/2
(774mm)
K15-1/4
(387mm)
15-1/4
(387mm)
TOP VIEW
FRONT VIEW SIDE VIEW

31259-3-0114Page 8
Figure 3
Mantel Chart
Figure 4
Ceiling Height and Side Wall Clearances
Minimum ceiling height is 96" (2438 mm)
Clearance from side of replace to adjacent sidewall is 6" (152mm).
Figure 5
CLEARANCES
Clearance to Combustibles
Back 1-1/2" (38 mm)
Side 1-1/2" (38 mm)
Floor 0" (0 mm)
Top Stand-off 12" (305 mm)
Top Framing Edge 12" (305 mm)
Minimum Height Floor To Ceiling 96" (2439mm)
Vertical Venting 1" (25.4 mm)
Optional Recessed Area
If a recess is desired, a 5-1/2" (127mm) deep (face of nishing
material to back of pocket) may be framed. Use 3/4" (19mm) wood
or steel framing. See Figure 2.
Figure 2
Television Considerations
Installing a television above a replace has become a desirable
feature; however, the following information should be considered.
All replaces, whether decorative or heater rated create heat.
Most television manufacturers recommend not placing a television
near a heat source. Because there is a large variety of television
manufactures, styles and sizes, it is impractical to test every potential
installation. If you choose to install a television above or near your
replace, understand that Empire Comfort Systems accepts no
responsibility for this decision and any injury or damage due to this
application is the sole responsibility of the owner. Additionally, it is
highly recommended to turn off the replace and let it cool down
before servicing or using the operational buttons located on the
television. In all cases, the television manufacturer’s instructions
and warnings should be followed.
Combustible Material
No greeting cards, stockings or ornamentation of any type should
be placed on or attached to the replace. The ow of heat can ignite
combustibles. See Figure 3.

31259-3-0114 Page 9
GAS SUPPLY
The gas pipeline can be brought in through the left side of the
appliance. Consult the current National Fuel Gas Code,ANSI Z223.1
CAN/CGA-B149 (.1 or .2) installation code.
Recommended Gas Pipe Diameter
Pipe Length Schedule 40 Pipe
Inside Diameter
Tubing, Type L
Outside Diameter
Nat. L.P. Nat. L.P.
0-10ft
0-3m
1/2"
12.7mm
3/8"
9.5mm
1/2"
12.7mm
3/8"
9.5mm
11-40ft
4-12m
1/2"
12.7mm
1/2"
12.7mm
5/8"
15.9mm
1/2"
12.7mm
41-100ft
13-30m
1/2"
12.7mm
1/2"
12.7mm
3/4"
19mm
1/2"
12.7mm
101-150ft
31-46m
3/4"
19mm
1/2"
12.7mm
7/8"
22.2mm
3/4"
1.9 mm
Notice: Never use plastic pipe. Check to conrm whether your local
codes allow copper tubing or galvanized.
Notice:Since some municipalities have additional local codes, it
is always best to consult your local authority and installation code.
The use of the following gas connectors is recommended:
— ANS Z21.24Appliance Connectors of Corrugated Metal Tubing
and Fittings.
— ANS Z21.45Assembled FlexibleAppliance Connectors of Other
Than All-Metal Construction
The above connectors may be used if acceptable by the authority
having jurisdiction. The state of Massachusetts requires that a
exible appliance connector cannot exceed three feet in length.
▲
►
▼
◄
◄
Figure 6
Gas Supply Pressure (inches w.c.)
Minimum Normal Maximum
Natural Gas 5.0" 7.0" *14.0"
LP (Propane) 10.8" 11.0" 14.0"
Manifold Pressure (inches w.c.)
Normal (HI)
Natural Gas 3.5"
LP (Propane) 10.0"
Installing a New Main Gas Cock
Each appliance should have its own manual gas cock.
A manual main gas cock should be located in the vicinity of the unit.
Where none exists, or where its size or location is not adequate,
contact your local authorized installer for installation or relocation.
Compounds used on threaded joints of gas piping shall be resistant
to the action of liqueed petroleum gases. The gas lines must be
checked for leaks by the installer. This should be done with a soap
solution watching for bubbles on all exposed connections, and if
unexposed, a pressure test should be made.
Never use an exposed ame to check for leaks. Appliance must
be disconnected from piping at inlet of control valve and pipe
capped or plugged for pressure test. Never pressure test with
appliance connected; control valve will sustain damage!
Notice:The gas controls are equipped with a captured screw type
pressure test point, therefore it is not necessary to provide a 1/8"
test point up stream of the control.
When using copper or ex connector use only approved ttings.
The appliance and it’s individual shut off valve must be disconnected
from supply piping system during any pressure testing of that system
at test pressures in excess of 1/2 psig (3.5kPa).
The appliance must be isolated from the gas supply piping system
by closing its individual manual shut off valve during any pressure
testing of the gas supply piping system at test pressures equal to
or less than 1/2 psig (3.5kPa).
Attention! If one of the procedures results in pressures in excess of
1/2 psig (14" w.c.) (3.5 kPa) on the replace gas valve, it will result
in a hazardous condition.
Checking Manifold Pressures
Both Propane and Natural gas valves have a built-in pressure
regulator in the gas valve. Natural gas models will have a manifold
pressure of approximately 3.5" w.c. (.871kPa) at the valve outlet
with the inlet pressure to the valve from a minimum of 5.0" w.c.
(1.245kPa) for the purpose of input adjustment to a maximum of
14.0" w.c. (3.484kPa). Propane gas models will have a manifold
pressure approximately 10.0" w.c. (2.49kPa) at the valve outlet
with the inlet pressure to the valve from a minimum of 10.8" w.c.
(2.68kPa) for the purpose of input adjustment to a maximum of
14.0" w.c. (3.484kPa).
5”
(127mm)
DV(LT/TT)
36 and 42
14-1/4”
(361mm)
FRONT OF APPLIANCE TO
GAS LINE HOLE
▲
►
▼
◄
Figure 7

31259-3-0114Page 10
Figure 8
Notice: Island and Room Divider installation is possible as long
as the horizontal portion of the vent system does not exceed 20
feet (6,096mm) with a minimum vertical run of 8 feet (2,438mm).
See details in Venting Section. See Figure 8.
CORNER INSTALLATION
ANGLED CORNER
INSTALLATION
ISLAND
INSTALLATION
ROOM DIVIDER
INSTALLATION
FLUSH WALL
INSTALLATION
CABINET
INSTALLATION
LOCATING FIREPLACE

31259-3-0114 Page 11
INSTALLATION
Framing
Fireplace framing can be built before or after the replace is set
in place. Framing should be positioned to accommodate wall
covering and replace facing material. The replace framing should
be constructed of 2 x 4 lumber or heavier. The framing headers
may rest on the replace standoffs. Refer to Figure 9 for minimum
framing dimensions.
CAUTION
MEASURE FIREPLACE DIMENSIONSAND VERIFY FRAMING
METHODS, AND WALL COVERING DETAILS BEFORE
FRAMING CONSTRUCTION BEGINS.
Framing dimension "A" includes a 12" (304 mm) clearance
for standoffs on rebox. After installing rebox into framing,
the nished wall surface must cover the 12" (304mm)
opening above the rebox. Board provided with replace.
DVLT/DVTT36 DVLT/DVTT42
A 51-1/2" (1,308mm) 57-1/2" (1,460mm)
B 58" (1,473mm) 64" (1,625mm)
C 23-1/2" (597mm) 23-1/2" (597mm)
Figure 9
Attention: If a base or mantel is not used and the appliance is
installed directly on carpeting, tile or other combustible material
other than wood ooring, it shall be installed on a metal or wood
panel extending the full width and depth of the appliance. The
vertical dimension in Figure 9 must be adjusted when a metal or
wood panel is placed beneath the appliance.
Attention: Cold climate installation recommendation:
When installing this unit against a non-insulated exterior
wall, it is recommended that the outer walls be insulated to
conform to applicable insulation codes.
Firebox Standoff Installation
1. Remove the two #10 x 1/2" screws, two support braces and
two standoffs from rebox rear as shown in Figure 10. Do not
discard any of the hardware.
Figure 10
2. Bend the standoffs as shown in Figure 11.
Figure 11
3. Use the two #10 x 1/2" screws removed in Step 1 and four
#10 x 1/2" screws provided in the hardware package to secure
the standoffs to the rebox top (3 each side. See Figure 12.
4. Secure the short and long supports to the standoffs using eight
10 x 1/2" screws (4 each support, 2 each side). See Figure 12.
Figure 12

31259-3-0114Page 12
INSTALLATION (continued)
Flush Mount Installation
The replace must extend 3/4” (19mm) beyond nished wall surface
when using a ush mount. Refer to Figure 13 to locate nailing anges
on replace sides. Mark and drill two 1/8” holes into replace side to
mount each nailing ange. Use eight 1/2” hex-head screws supplied
in hardware package to attach nailing anges to replace sides.
▲
Figure 13
Flush Wall Installation
1/2” (12 mm) NON- COMBUSTIBLE
NON- COMBUSTIBLE FINISHED W
ALL
ALL FIREPLACE METAL MUST BE
COVERED WITH NON-COMBUSTIBLE
MATERIAL ONLY
TOP OF FIREPLACE OPENING
IMPORTANT: NO FINISHING
MATERIAL OF ANY TYPE MAY
EVER OVERLAP THE OPENING
OF THE SIDES OR TOP.
GLASS WILL NOT FIT
IF IT DOES.
STANDOFF
2 X 4 OR 2 X 6
SHOWN VERTICAL
MAY BE HORIZONTAL
AND/OR DOUBLED UP
◄
▼
◄
◄
▼
▼
Figure 14
Framing and Finishing
1. Choose unit location.
2. Frame in replace with a header across the top. It is important
to allow for nished face when setting the depth of the frame.
3. Attach replace to frame. See Figure 15.
Figure 15

31259-3-0114 Page 13
INSTALLATION (continued)
Vent Pipe Clearance
Note: Maintain one inch of clearance around vertical vent pipe (after
the rst 96” framing). See Figure 16.
▼
▲
Figure 16
For horizontal vent, maintain a minimum 1” clearance to the bottom
and sides of the vent, and 3” clearance to combustibles above the
vent pipe. See Figure 17.
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▼
◄
▼
▲
◄
▼
Figure 17
Combustible Surround Installation
▲
▲
▲
▲
▲
▲
▲
14”OF NON-COMUBSTIBLE
MATERIALSUPPLIED WITH
THE FIREPLACE
1/2” LIP AT TOPOF
FIREPLACE OPENING
NON-COMBUSTIBLE
MATERIAL
STANDOFFS
2 X 4 HEADERS
FINISH WALL
COMBUSTIBLE
SURROUND
Figure 18
Finishing
Finish the walls with the material of your choice. Figure 4 on page 8
shows the minimum vertical and corresponding maximum horizontal
dimensions of mantels or other combustible projections above the
top front edge of the replace.
Only non-combustible materials may be used to cover the metal
replace face. See Figure 3, Page 8.
WARNING
If the joints between the nished wall and the replace surround
(top and sides) are sealed, a 300°F minimum sealant material
must be used. These joints are not required to be sealed. Only
non-combustible material (using 300°F minimum adhesive if
needed), can be applied as facing to the replace surround.
Vent Runs
In planning the installation for the replace, it is necessary to install
certain components before the appliance is completely positioned
and installed. These include the direct vent system, gas piping for
the appliance and the electrical wiring.
The appliance can be mounted on any of the following surfaces:
1. A at, hard combustible surface.
2. A raised wooden platform.
3. Six supports. (Example: Six concrete masonry blocks.) These
supports must be positioned so they contact all four perimeter
edges on the bottom of the unit and under the center leg supports,
if allowed by code.
VERTICAL, 90° ELBOW WITH HORIZONTAL TERMINATION
80-1/4” (2038 mm) DV(L
T,TT) 42
62-1/4” (1581 mm) DV(L
T,TT) 36
MINIMUM FROM BOTTOM
OF FIREPLACE
◄
3” (76 mm)
MINIMUM
CLEARANCE TO
COMBUSTIBLES
▲
▼
▲
▼
◄
VENT CAP/
THIMBLE
WALL FIRESTOP
Figure 19

31259-3-0114Page 14
INSTALLATION (continued)
VERTICAL, 90° ELBOW TO
HORIZONTAL OUT THE WALL
►
▼
◄►◄
▲
▲
►
◄
A
A B C
6 INCH 11-3/4" TO 12-3/4"
(298mm TO 323mm)
4-3/4" TO 6-1/4"
(121mm TO 159mm)
9 INCH 14-1/4" TO 15-3/4"
(362mm TO 400mm)
7-3/4" TO 9-1/4"
(197mm TO 235mm)
12 INCH 17-1/4" TO 18-3/4"
(438mm TO 476mm)
10-3/4" TO 12-1/4"
(273mm TO 311mm)
Figure 20
CORNER INSTALLATION VERTICAL, 90° ELBOW TO
HORIZONTAL OUT THE WALL
▲
▼
◄
▼
▼
◄
◄
▼
▲
B
A
D
C
►
►
E
VENT CAP/
THIMBLE
WALL
FIRESTOP
DVLT/DVTT36 DVLT/DVTT42
A72-11/16"
(1853 mm)
77-1/4"
(1962 mm)
B51-9/16"
(1310 mm)
54-5/8"
(1387 mm)
C25-11/16"
(652 mm)
27-7/8"
(708 mm)
D103-1/8"
(2620 mm)
109-1/4"
(2775 mm)
E19-11/16"
(500 mm)
21-7/8"
(555 mm)
Figure 21
Corner installation may require more vertical than just the
minimum required depending on wall thickness and horizontal
dimension.
IMPORTANT:
MINIMUM HEIGHT OFF THE TOP REQUIREMENTS
DVLT36FP & DVTT36FP - MUST USE a 1 FT (305 mm) vent
pipe as the rst section BEFORE installing the elbow.
DVLT42FP & DVTT42FP - MUST USE a 2 FT (610 mm) vent
pipe as the rst section BEFORE installing the elbow.

31259-3-0114 Page 15
Acceptable vertical and horizontal vent run.
(40' maximum vertical and 20' maximum horizontal)
Unacceptable vertical and horizontal vent run.
EXAMPLE A:
If the vertical dimension from the top of the unit is 35', the horizontal
run to the outer wall ange must not exceed 5'.
EXAMPLE B:
DV(LT,TT)36: If the vertical dimension from the top of the unit is
4.5', the horizontal run to the outer wall ange must not exceed 11'.
DV(LT,TT)42: If the vertical dimension from the top of the unit is
5', the horizontal run to the outer wall ange must not exceed 11' .
VENTING FIREPLACE
To Use the Vent Graph
1. Determine the height of the center of the horizontal vent pipe. Using this dimension on the Sidewall Vent Graph, locate the point it
intersects 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 unit in accordance with same.
Special Note: For each 45 degree elbow installed in the horizontal
run, the length of the horizontal run MUST be reduced by 18" (45cm).
This does not apply if the 45 degree elbows are installed on the
vertical part of the vent system. Reduce 3' for every 90° elbow.
Example:According to the chart the maximum horizontal vent length
is 20' and if two 45 degree elbows are required in the horizontal
vent it must be reduced to 17'.
The maximum number of 45 degree elbows permitted per side wall
installation is two (2). These elbows can be installed in either the
vertical or horizontal run.
NOTE: The rst elbow does not get counted.
Figure 22 (DVLT36 and DVTT36) Figure 23 (DVLT42 and DVTT42)

31259-3-0114Page 16
VENTING FIREPLACE
Maximum horizontal run for a minimum vertical rise
▼
20”
(508mm)
MAXIMUM HORIZONT
AL RUN
WITH MINIMUM VER
TICAL
RISE
AND 90 ELBOW
o
12” SECTION
(DV(LT,TT)36)
24” SECTION
(DV(LT,TT)42)
Figure 24
Minimum vertical rise for maximum horizontal run
19’- 5”
(5.9M)
▲
►
▼
◄
Figure 25
Below Grade Installation
When it is not possible to meet the required vent terminal clearances
of 12" (305mm) above grade level, a snorkel kit is recommended.
It allows installation depth down to 7" (178mm) below grade level.
The 7" (178mm) is measured from the center of the horizontal vent
pipe as it penetrates through the wall.
Ensure the sidewall venting clearances are observed. If venting
system is installed below ground, we recommend a window
well with adequate and proper drainage to be installed around
the termination area.
Typical Basement Installation
►
▼
▼
▲
▲
3” (76 mm) MINIMUM
▲
▼
18”
(457 mm)
MINIMUM
▲
▼
12”
(305 mm)
ABOVE
GRADE
48”
(1219 mm)
Figure 26

31259-3-0114 Page 17
Examples of possible venting systems using one 90° elbow
Eight feet is listed as minimum vertical vent run with a maximum
of 20 feet horizontal vent run. Vertical dimensions are based on
centerline to centerline of pipe. Horizontal dimensions are based
on centerline of pipe to end of termination.
▲
▼
▲
▲
▲
FIRESTOP AT
CEILING LEVEL
SEE GRAPH FOR PERMISSIBLE
“H” AND “V” DIMENSIONS
Figure 27
Attention: Refer to Figures 22 and 23 for additional venting
requirements.
VENTING FIREPLACE
Examples of possible venting systems using two 90° elbows
V is listed as minimum vertical dimensions and H1 + H2 is listed
as total of maximum horizontal dimensions. The maximum vertical
and horizontal distances for two 90° elbows as shown in Figure
28 is 37 feet.
FIRESTOP AT
CEILING LEVEL
▲
▲
▲
▲
▲
▲
SEE GRAPH FOR PERMISSIBLE “H” AND “V” DIMENSIONS
NOTE: H1 AND H2 MUST BE ADDED TOGETHER TO USE GRAPH
▲
Figure 28
MINIMUM HOLE LOCATION DIMENSIONS FOR THROUGH
THE WALL HORIZONTAL INSTALLATIONS WITH 90 DEGREE
ELBOW OFF TOP OF FIREPLACE
Positioning the Fireplace
Determine the exact position of the appliance so the direct vent
termination will be centered (if possible) between two studs. This
will avoid any extra framing. All vent kit pipes should be assembled
on the unit after the unit is moved into the nal position.
FIREPLACE
SERIES
HARD ELBOW DIMENSIONS
A B C
DVLT/DVTT36 55-1/4"
(1403 mm)
5"
(127 mm)
7"
(178 mm)
DVLT/DVTT42 73-1/4"
(1861 mm)
5"
(127 mm)
7"
(178 mm)

31259-3-0114Page 18
VENTING FIREPLACE
Cutting the Hole
After the replace has been positioned in its permanent location,
the hole through the exterior wall of the house can be cut. This hole
must be 12" (305mm) high x 10" (254mm) wide with its center line
determined by the amount of vertical rise and horizontal run of the
termination. See Figure 29.
▲
►
▼
◄
▲
▲
▼
▲
▼
▲
▲
▼
◄
►
▲
▼
10-3/8”
(263.5mm)
12-3/8”
(314.3mm)
Figure 29
When locating the hole it must be noted that the bottom of the cap
must be 12" (305mm) above the ground level, and top of the cap
must be no less than 18" (457mm) below a combustible projection,
and no closer than 9" (229mm) to any wall running parallel to vent
termination. See Figure 30.
▲
▼
◄
Figure 30

31259-3-0114 Page 19
EXAMPLES - VENT RUN
24”MINIMUM
CLEARANCE TO
COMBUSTIBLES
24” ►
▲
◄
►
◄►
▼
◄
EXAMPLE
If total horizontal needs to be 8', then the minimum required
vertical is 6'.
H=8' (45° + 90° + 90°) = 14' (equivalent horizontal)
From the graph the required vertical is 6'.
Figure 31 - (DV(LT,TT)42)
►
▼
◄
▲
◄►
EXAMPLE
If total horizontal needs to be 10', then the minimum required
vertical is 6'.
H=10' (90° + 90°) = 16' (equivalent horizontal)
From the graph the required vertical is 7'.
Figure 32- (DV(LT,TT)42)

31259-3-0114Page 20
EXAMPLES - VENT RUN
►
▼
◄
▲
◄
►
EXAMPLE
If total vertical is to be 9', then the maximum required horizontal
run can be 14'
H=20' - (45° + 45°) = 14' (equivalent horizontal)
From the graph the required vertical is 14'.
Figure 33 - (DV(LT,TT)42)