White Mountain Hearth DVCX(36 Quick start guide

Page 1
INSTALLATION INSTRUCTIONS
AND OWNER’S MANUAL
DIRECT VENT ZERO CLEARANCE
GAS FIREPLACE HEATER
MODEL SERIES:
MILLIVOLT (MV)
DVCX(36,42)FP30(N,P)-2
INTERMITTENT PILOT (IPI)
DVCX(36,42)FP70(N,P)-2
MH30033
INSTALLER: Leave this manual with the appliance.
CONSUMER: Retain this manual for future reference.
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.
WARNING
If the information in these instructions are
not followed exactly, a re or explosion
may result causing property damage, per-
sonal injury or loss of life.
— Do not store or use gasoline or other
ammable vapors and liquids in the vi-
cinity 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 per-
formed by a qualied installer, service
agency or the gas supplier.
WARNING
If not installed, operated and maintained in ac-
cordance 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.
GAS-FIRED
HOT GLASS
DO NOT TOUCH
NEVER
WILL
CAUSE BURNS.
GLASS
UNTIL COOLED.
ALLOW CHILDREN
TO TOUCH GLASS.
WARNING
A barrier designed to reduce the risk of burns from the
hot viewing glass is provided with this appliance and shall
be installed for the protection of children and other at-risk
individuals.
Note: Barrier required, but may be sold separately.

35009-2-1015Page 2
BEFORE YOU START
1. Read the safety information on Pages 64 - 65.
2. If located in the Commonwealth of Massachusetts, please note the special requirements on Page 66.
3. Where are you going to install the unit? See Pages 8-10 & 14.
4. Frame the opening. See Page 16.
5. Install the gas lines. See Page 13.
6. Install the wiring. See Pages 15, 46, and 53.
7. Install the venting. See Pages 11-12.
8. Install the replace. See Pages 16-19.
9. Connect the gas. See Page 13.
10. Connect the electricity. See Page 15.
11. Connect the venting system. See Page 20.
12. Install the optional remote system. See Page 46 for Millivolt Systems and Page 52 for Intermittent Pilot Systems.
13. Install the logs. See Page 32 - 43.
14. Light the replace and troubleshoot. See Pages 47 - 48 for Millivolt Systems and 54 - 57 for Intermittent Pilot Systems.
15. Install trim and other accessories. See Page 7.
16. Show the homeowner how to operate the replace.
17. Show the homeowner how to do the basic maintenance.

35009-2-1015 Page 3
TABLE OF CONTENTS
All Appliances........................................................................................................................................................ 4-43
Carton Contents................................................................................................................................................................................ 4
Introduction ....................................................................................................................................................................................... 5
Specications.................................................................................................................................................................................... 6
Hardware Package ........................................................................................................................................................................... 7
Accessories....................................................................................................................................................................................... 7
Fireplace Dimensions ....................................................................................................................................................................... 8
Clearances................................................................................................................................................................................... 9-10
Combustible Material ...................................................................................................................................................................... 10
Vent Termination Clearances ..................................................................................................................................................... 11-12
Gas Supply ..................................................................................................................................................................................... 13
Locating Fireplace........................................................................................................................................................................... 14
Electrical Considerations ................................................................................................................................................................ 15
Installation.................................................................................................................................................................................. 16-19
Vent System Identication............................................................................................................................................................... 20
Vent Systems .................................................................................................................................................................................. 20
Venting Fireplace ....................................................................................................................................................................... 21-23
Top Vent - Horizontal Termination ................................................................................................................................................... 24
Top Vent - Vertical Termination ....................................................................................................................................................... 25
Vertical Termination.................................................................................................................................................................... 26-27
Framing and Finishing ............................................................................................................................................................... 28-29
DVVK-5F Flex Vent Instructions ................................................................................................................................................ 30-31
Liner Placement.............................................................................................................................................................................. 32
Glowing Embers.............................................................................................................................................................................. 32
Log Identication............................................................................................................................................................................. 33
Log Placement........................................................................................................................................................................... 34-43
Millivolt System Appliances ............................................................................................................................... 44-51
Operating Instructions................................................................................................................................................................ 44-45
Wiring Diagram ............................................................................................................................................................................... 46
Lighting Instructions........................................................................................................................................................................ 47
Troubleshooting .............................................................................................................................................................................. 48
Parts View....................................................................................................................................................................................... 50
Parts List......................................................................................................................................................................................... 51
Intermittent Pilot Appliances.............................................................................................................................. 52-59
Operating Instructions..................................................................................................................................................................... 52
Wiring Diagram ............................................................................................................................................................................... 53
Lighting Instructions........................................................................................................................................................................ 54
Troubleshooting ......................................................................................................................................................................... 55-57
Parts View....................................................................................................................................................................................... 58
Parts List......................................................................................................................................................................................... 59
All Appliances...................................................................................................................................................... 60-68
Fireplace - All Units Parts View....................................................................................................................................................... 60
Fireplace - All Units Parts List ......................................................................................................................................................... 61
Maintenance and Service (Screen & Glass Removal) .............................................................................................................. 62-63
Important Safety Information........................................................................................................................................................... 64
Safety Information for Users of LP Gas .......................................................................................................................................... 65
Requirements for Massachusetts ................................................................................................................................................... 66
Master Parts Distributor List............................................................................................................................................................ 67
How To Order Repair Parts............................................................................................................................................................. 67
Warranty ......................................................................................................................................................................................... 68
SECTION PAGE

35009-2-1015Page 4
CARTON CONTENTS
INDEX
NUMBER DESCRIPTION QTY SUPPLIED
1 Rock Wool 2
2 Receptical Cover 1
3 Receptical 1
4 Flue Restrictor Assembly - NAT or LP 1
5 Hardware Pack 1
Not Shown Log Set (see Page 33) 1 set
Not Shown Fireplace 1
Not Shown Accessory Sheet 1
Not Shown Product Registration Card 1
See Parts Lists on Pages 50 - 51 and 58 - 62 for ordering re-
placement parts. Do not order batteries, bolts, screws, washers
or nuts. They are standard hardware items and can be purchased
at any local hardware store.
DVCX(36,42)FP3 SERIES DVCX(36,42)FP7 SERIES
INDEX
NUMBER DESCRIPTION QTY SUPPLIED
1 Rock Wool 2
2 Receptical Cover 2
3 Receptical 2
4Flue Restrictor Assembly - NAT or LP 1
5 Hardware Pack 1
6 AA Battery 4
7AC Adaptor 1
Not Shown Log Set (see Page 33) 1 set
Not Shown Fireplace 1
Not Shown Accessory Sheet 1
Not Shown Product Registration Card 1
See Parts Lists on Pages 50 - 51 and 58 - 62 for ordering re-
placement parts. Do not order batteries, bolts, screws, washers
or nuts. They are standard hardware items and can be purchased
at any local hardware store.

35009-2-1015 Page 5
Instructions to Installer
1. Installer must leave instruction manual with owner after
installation.
2. Installer must have owner ll out and mail product
registration 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.
Appliance Certication
WARNING
This unit is not for use with solid fuels.
This replace is design certied in accordance with American
National Standard/CSAStandardANSI Z21.88/CSA2.33 and
by Underwriters Laboratories as a Direct Vent Gas Fireplace
Heater 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.
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.
The installation must conform with local codes or, in the
absence of local codes, with the National Fuel Gas Code
ANSI Z223.1/NFPA54* 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.
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 Empire Comfort Systems 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 Empire Comfort Systems.
Consult your Empire Comfort Systems 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 replace 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

35009-2-1015Page 6
SPECIFICATIONS
DVCX36NAT DVCX36LP DVCX42NAT DVCX42LP
Input BTU/Hr Maximum 37,000 34,000 40,000 36,000
Input BTU/Hr Minimum 26,000 27,000 27,000 29,000
KWH (Maximum) 10.84 9.96 11.72 10.55
KWH (Minimum) 7.62 7.91 7.91 8.5
Orice (Front / Rear) 47 / 42 58 / 1.45 44 / 40 57 / 1.45
Air Shutter Opening 3/16 FULL OPEN 3/16 FULL OPEN
Height without standoff 36-7/8 36-7/8 36-7/8 36-7/8
Width 39-5/16 39-5/16 43-5/16 43-5/16
Depth 21-1/16 21-1/16 21-1/16 21-1/16
Gas Inlet Shutoff Valve (pipe) 1/2 NPT 1/2 NPT 1/2 NPT 1/2 NPT
Vent Size 5 x 8 5 x 8 5 x 8 5 x 8
NOTE: Air shutter settings are factory minimum settings. Some venting congurations may require minor air
shutter adjustments for optimum performance.
NOTE: 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 60 - 61 for ordering.
GAS SUPPLY PRESSURES
GAS TYPE MAXIMUM MINIMUM MANIFOLD
NAT 14 4.5 3.5
LP 14 11 10
NOTE: For gas pipe dimensions, see Page 13.

35009-2-1015 Page 7
HARDWARE PACKAGE
DVCX(36,42)FP(3,7) SERIES
HEX HEAD SCREW 10 X 1/2
The following accessory parts can be obtained from your Empire Comfort Systems dealer. Contact your Empire Dealer for more acces-
sory options. If you need additional information beyond what your dealer can furnish, contact Empire Comfort Systems Inc., 918 Freeburg
Ave., Belleville, Illinois 62220-2623.
ACCESSORIES
Model Number Description Used On
DF362NB Beveled Window Frame, Brushed Nickel DVCX36
DF422NB Beveled Window Frame, Brushed Nickel DVCX42
DF362B2 Beveled Window Frame, Oil Rubbed Bronze DVCX36
DF422B2 Beveled Window Frame, Oil Rubbed Bronze DVCX42
DVD36XBLNB Decorative Door, Brushed Nickel DVCX36
DVD42XBLNB Decorative Door, Brushed Nickel DVCX42
DVP36XRB Ceramic Fiber Liner, Rustic Brick DVCX36
DVP42XRB Ceramic Fiber Liner, Rustic Brick DVCX42
DVP36XWS Ceramic Fiber Liner and Floor, Old World Stone DVCX36
DVP42XWS Ceramic Fiber Liner and Floor, Old World Stone DVCX42
DVP36XKR Reective Liner, Black DVCX36
DVP42XKR Reective Liner, Black DVCX42
DVF36XKR Reective Floor, Black DVCX36
DVF42XKQ Reective Floor, Black DVCX42
FBB10 Blower, Auto Variable Speed DVCX(36,42)
LK6 Lighting Kit, 120V DVCX(36,42)
DCA1ABL Decorative Forged Andirons, Black DVCX(36,42)
REMOTE CONTROL
ACCESSORIES DESCRIPTION MODELS USED ON
FRBC Battery Remote ON/OFF DVCX(36,42)FP(3,7)
FRBTC Battery Remote Thermostat DVCX(36,42)FP(3,7)
TMW Wireless Wall Thermostat DVCX(36,42)FP(3,7)
TRW Reed Switch Wall Thermostat DVCX(36,42)FP(3,7)
FWS-1 Wall Switch DVCX(36,42)FP(3,7)
FRBTP Battery Operated Remote Control with Programmable Thermostat DVCX(36,42)FP(3,7)
RVKN-1 Remote Kit, Nat (Stepper Motor) - IP Appliances Only DVCX(36,42)FP7N
RVKP-1 Remote Kit, LP (Stepper Motor) - IP Appliances Only DVCX(36,42)FP7P
Conversion Kits Description Used On
33768 Conversion Kit, DV (Natural to Propane) DVCX36FP30
33769 Conversion Kit, DV (Propane to Natural) DVCX36FP30
33770 Conversion Kit, DV (Natural to Propane) DVCX42FP30
33771 Conversion Kit, DV (Propane to Natural) DVCX42FP30
32941 Conversion Kit, DV (Natural to Propane) DVCX36FP30
32942 Conversion Kit, DV (Propane to Natural) DVCX36FP30
32943 Conversion Kit, DV (Natural to Propane) DVCX42FP30
32944 Conversion Kit, DV (Propane to Natural) DVCX42FP30

35009-2-1015Page 8
FIREPLACE DIMENSIONS
INDEX
LETTER DIMENSION DESCRIPTION DIMENSIONS (in inches)
DVCX36FP DVCX42FP
AThe maximum height of rebox face (excluding standoffs) 41-7/8 41-7/8
BThe maximum width of the rebox face (excluding nailing anges) 42-1/4 46-1/4
CThe maximum depth of the rebox 22-1/16 22-1/16
DThe height of the rebox opening 27-1/2 27-1/2
EThe width of the rebox opening 35-9/16 39-15/16
FThe interior depth of the rebox 15-1/4 15-1/4
GThe rear exterior width of the rebox 28-3/8 32-3/8
HThe height to the rebox standoffs 42-1/8 42-1/8
I Width from the left side of the box to the centerline of vent 19-1/8 23-1/8
J Depth from back of box to centerline of top vent 7-11/16 7-11/16
K Height from the bottom of the box to the gas line opening 2 2
L Depth from the front of the box to gas line opening 11-3/16 11-3/16
M Depth from rear of box to gas line opening 10-7/8 10-7/8
N Glass frame opening height 24 24
O Glass frame opening width 32-7/8 36-7/8
P Depth from front of box to centerline of vent 14-3/8 14-3/8
QDistance from oor to replace opening 31 31
RHeight from oor to vent collar 33-9/16 33-9/16
S Maximum hearth size 1 1
G
J
P
I
O
A
Q
N
B
E
D
F
H
R
KLM
C
S

35009-2-1015 Page 9
CLEARANCES
Clearance to Combustibles
Back Stand-off 0" (0 mm)
Side Stand-off 0" (0 mm)
Floor 0" (0 mm)
Top Stand-off 0" (0 mm)
Top Framing Edge 6” (152 mm)
GLASS FRONT
TOPFRAMING
LEDGE
FINISHED WALL
(COMBUSTIBLE)
2" x 4" HEADER
NAILING
FLANGES
SEE MANTEL CHART FOR
MAXIMUM MANTEL DEPTH
SEE MANTEL CHART
FOR MINIMUM HEIGHT
OF MANTEL ABOVE UNIT
STAND-OFF
3” (76mm) HEIGHT
ABOVE TOPOF
FIREPLACE
REAR
STAND-OFF
SIDE
STAND-OFF
Figure 1
Note: Generic Firebox shown.
Mantel Chart
TOP EDGE OF FIREPLACE OPENING
INDEX
LETTER
DIMENSIONS (in inches)
DISTANCE FROM TOP
EDGE OF FIREPLACE
OPENING
(HORIZONTAL)
DISTANCE FROM
FIREPLACE FRONT
(VERTICAL)
A 12 25-1/2
B 10 25-1/2
C 8 23-3/4
D 6 22-1/8
E 4 20-3/8
F 2 18-3/4
G 0 17
Figure 2

35009-2-1015Page 10
Clearances
WARNING
This replace is not been tested nor approved to have a television
or other electrical appliance installed above it.
Clearance from bottom of replace to ceiling is 84”
Clearance from side of replace to adjacent sidewall is 6”.
Television Considerations
Installing a television above a replace has become increasingly
popular; however, the area above any replace gets hot and most
TV manufacturers recommend against placing their products near
a heat source.
If you install a television above this replace, Empire Comfort Sys-
tems accepts no responsibility for damage or injuries. Follow the
television manufacturer’s installation instructions, including any
recommendations regarding proximity to heat sources.
If you have a TV above your replace, turn off the replace and
let it cool completely before servicing or touching any buttons on
the TV.
CLEARANCES
Do not attach combustible material to the mantel of your replace.
This is a re hazard.
Figure 5
Note: Generic Firebox shown.
No greeting card, stockings or ornamentation of any type should be
placed on or attached to the replace. This is a heating appliance.
The ow of heat can ignite combustibles.
Figure 6
Note: Generic Firebox shown.
COMBUSTIBLE MATERIAL
Figure 3
Figure 4

35009-2-1015 Page 11
Termination clearance for buildings with combustible and noncombustible exteriors.
Vertical Sidewall Installations
Important! Minimum clearance between vent pipes and combustible
materials is 3 inches (76 mm) on top, and 1 inch (25 mm) on bottom
and sides.
Important! When vent termination exits through foundation less
than 20 inches (508 mm) below siding outcrop, the vent pipe must
extend outward so that the horizontal vent termination is located
ush to, or beyond the outcrop siding.
Information on Various Venting Routes and Components
Important: It is always best to locate the replace in such a way
that minimizes the number of offsets and horizontal vent length.
Since it is very important that the venting system 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.
Figure 7
VENT TERMINATION CLEARANCES
The graph showing the relationship between vertical and horizontal
side wall venting will help to determine the various vent lengths
allowable.
The horizontal vent run refers to the total length of vent pipe from
the ue collar of the replace to the face of the outer wall.
The maximum horizontal vent run is 20 feet (6.10 m) when the
vertical vent rise is 8 feet (2.44 m). See Page 23, Figure 35.
Venting termination shall not be recessed into wall or siding.
ATTENTION: Vinyl Soft, Vinyl Ceiling, Vinyl Overhang
Disclaimer
Clearances are to heat resistant material (i.e. wood, metal). This
does not include vinyl. Empire Comfort Systems Inc. will not be held
responsible for heat damage caused from terminating under vinyl
overhangs, vinyl ceilings or vinyl ventilated/unventilated softs.

35009-2-1015Page 12
VENT TERMINATION CLEARANCES
Canadian Installations1 US Installations2 Canadian Installations1 US Installations2
A= Clearance above grade,
veranda, porch, deck, or
balcony
12 in (30 cm) 12 in (30cm) I= Clearance to service
regulator vent outlet 3 ft (91 cm) 6 ft
B= Clearance to window or
door that may be open
6 in (15 cm) for appli-
ances ≤ 10,000 Btuh
(3 kW), 12 in (30 cm)
for appliances > 10,000
Btuh (3 kW) and ≤
100,000 Btuh (30 kW),
36 in (91 cm) for appli-
ances > 100,000 Btuh
(30 kW)
6 in (15 cm) for appli-
ances ≤ 10,000 Btuh (3
kW), 9 in (23 cm) for ap-
pliances > 10,000 Btuh
(3 kW) and ≤ 50,000
Btuh (15 kW), 12 in
(30 cm) for appliances >
50,000 Btuh (15 kW)
J= Clearance to nonme-
chanical air supply
inlet to building or the
combustion air inlet to
any other appliance
6 in (15 cm) for appli-
ances ≤ 10,000 Btuh (3
kW), 12 in (30 cm) for
appliances > 10,000
Btuh (3 kW) and ≤
100,000 Btuh (30 kW),
36 in (91 cm) for appli-
ances > 100,000 Btuh
(30 kW)
6 in (15 cm) for appli-
ances ≤ 10,000 Btuh
(3 kW), 9 in (23 cm) for
appliances > 10,000 Btuh
(3 kW) and ≤ 50,000 Btuh
(15 kW), 12 in (30 cm) for
appliances > 50,000 Btuh
(15 kW)
C= Clearance to perma-
nently closed window 12 in (30 cm) 12 in (30 cm)
K= Clearance to a mechani-
cal air supply inlet 6 ft (1.83 m)
3 ft (91 cm) above if
within 10 ft (3 m) hori-
zontally
D= Vertical clearance
ventilated soft located
above the terminal within
a horizontal distance of 2
feet (61 cm) from the cen-
ter line of the terminal
24 in (61 cm) 24 in (61 cm)
L= Clearance above paved
sidewalk or paved drive-
way located on public
property 7 ft (2.13 m) † 7 ft (2.13 m) †
E= Clearance to unventi-
lated soft 12 in (30 cm) 12 in (30 cm)
M= Clearance under
veranda, porch deck, or
balcony
12 in (30 cm) ‡ 12 in (30 cm) ‡
F= Clearance to outside
corner 6 in (15 cm) 6 in (15 cm) 1In accordance with the current CSA B149.1, Natural Gas and Propane Instal- lation Code
G= Clearance inside corner 9 in (23 cm) 9 in (23 cm) 2 In Accordance with the current ANSI Z223.1/NFPA 54, National Fuel Gas
Code
H= Clearance to each side
of center line extended
above meter/regulator
assembly
3 ft (91 cm) within a
height 15 ft (4.5 m)
above the meter/regula-
tor assembly
3 ft (91 cm)
† A vent shall not terminate directly above a sidewalk or paved driveway that is
located between two single family dwellings and serves both dwellings
ATTENTION: Vinyl Soft, Vinyl Ceiling, Vinyl Overhang
Disclaimer
Clearances are to heat resistant material (i.e. wood, metal). This
does not include vinyl. Empire Comfort Systems Inc. will not be held
responsible for heat damage caused from terminating under vinyl
overhangs, vinyl ceilings or vinyl ventilated/unventilated softs.
‡Permitted only if veranda,, porch, deck, or balcony is fully open on a minimum
of two sides beneath the oor.
*For clearances not specied in ANSI Z223.1/NFPA 54 or CSA B149.1, one of
the following shall be indicated:
a) A minimum clearance value determined by testing in accordance with section
2.23.5, or;
b) A reference to the following footnote: “Clearance in accordance with local
installation codes and the requirements of the gas supplier.”
Figure 8

35009-2-1015 Page 13
GAS SUPPLY
The gas pipeline can be brought in through the right or 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.
0-10 feet 1/2” 3/8” 1/2” 3/8”
10-40 feet 1/2” 1/2” 5/8” 1/2”
40-100 feet 1/2” 1/2” 3/4” 1/2”
100-150 feet 3/4” 1/2” 7/8” 3/4”
Note: Never use plastic pipe. Check to conrm whether your
local codes allow copper tubing or galvanized.
Note: Since some municipalities have additional local codes, it is
always best to consult your local authority and installation code.
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 9
Gas Supply Pressure (inches w.c.)
Minimum Normal Maximum
Natural Gas 4.5" 7.0" 14.0"
LP (Propane) 11” 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 (Check Local Code)
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!
NOTE: The millivolt gas controls are equipped with a captured screw
type pressure test point, therefore it is not necessary to provide a
1/8 inch test point up stream of the control.
Figure 10
On direct ignition valves, hex plugs may be replaced with hose ttings
for pressure checks, then reinstalled before operating replace.
When using copper or ex connector use only approved ttings.
The appliance and its 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 (3.5 kPa).
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 (3.5 kPa).
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 inch w.c. (.871 kPa) at the valve
outlet with the inlet pressure to the valve from a minimum of 4.5 inch
w.c. (1.120 kPa) for the purpose of input adjustment to a maximum
of 14.0 inch w.c. (3.484 kPa). Propane gas models will have a
manifold pressure approximately 10.0 inch w.c. (2.49 kPa) at the
valve outlet with the inlet pressure to the valve from a minimum of
10.8 inch w.c. (2.68 kPa) for the purpose of input adjustment to a
maximum of 14.0 inch w.c. (3.484 kPa).
2” 4 1/2”
Figure 11

35009-2-1015Page 14
Figure 12
Note: Island and Room Divider installation is possible as long as the horizontal portion of the vent system does not exceed 20 feet with
a minimum vertical run of 8 feet. See details in Venting Section.
Note: When installing this appliance against an exterior wall, insulate to applicable insulation codes.
When you install your Direct Vent Fireplace in Room divider or Flat on wall corner positions, a minimum of 6 inches clearance must be
maintained from the perpendicular wall and the front edge of the appliance.
LOCATING FIREPLACE

35009-2-1015 Page 15
ELECTRICAL CONSIDERATIONS
CAUTION
All wiring should be done by a qualied electrician and shall be
in compliance with all local, city and state building codes. Before
making the electrical connection, make sure that the main power
supply is disconnected. The appliance, when installed, must be
electrically grounded in accordance with local codes, or in the
absence of local codes, with the National Electrical Code ANSI/
NFPA 70 (Latest Edition).
Millivolt System Valve Models
A factory installed junction box is located on the lower right side of
the replace. Wiring must be fed to the junction box and attached
to the receptacle that is provided. Leave approximately 6" of wire
in the junction box for connection.
Attach black wire to one side of the receptacle and white wire to
opposite side of receptacle. The ground wire should be attached
to the green (ground) screw.
Install the receptacle into the junction box. Attach cover plate.
Figure 13
IPI System Valve Models
1. Power for switched and live sides of receptacle must come from
the same power source. (One circuit breaker on main panel
must switch all power off.)
2. From the wall box to the replace a 3-wire conductor with
ground is recommended, however two 2-wire conductors with
grounds may be used in place of a 3-wire conductor with a
ground if the black wires from the thermostat and blower switch
are identied.
3. Two wall switches may be used to activate the receptacle plugs
independently.
GROUND
TO 120V
CIRCUIT
BREAKER
DOUBLE SWITCH BOX
(INSTALLER PROVIDED)
3 WIRE, GROUNDED
CONDUCTOR
(BY OTHERS)
DUAL SWITCH ELECTRICAL WIRING TO FIREPLACE RECEPTACLE
FIREPLACE
CONTROL
COMPARTMENT
BLACK
BLACK
WHITE
WHITE
Figure 14

35009-2-1015Page 16
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. The framing headers may rest on
the replace standoffs. Refer to Figure 15 for minimum framing
dimensions.
ATTENTION: Measure replace dimensions and verify framing
methods and wall covering details before framing construction be-
gins.
Framing dimension "A" includes a six inch clearance for
standoffs on rebox. After installing rebox into framing,
the nished wall surface must cover the six inch opening
above the rebox.
DIMENSIONS (in inches)
Dim. DVCX36 DVCX42
A 42-5/16 42-5/16
B 42-3/8 46-3/8
C 21-1/2 21-1/2
Figure 15
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 using adjustable frame. Preset depth
to suit facing material (adjustable to 1/2, 5/8 or 3/4-inch depths).
4. Locate the nailing anges on the sides of the rebox (two each
side).
6. Measure from face of replace to face of drywall strip to determine
nal depth and adjust nailing anges as shown in Figure 16.
3/4”
1/2”
3/4”
1/2”
Figure 16
8. Bend the nailing anges 90 degrees.
Figure 17

35009-2-1015 Page 17
INSTALLATION (continued)
Vent Pipe Clearance
Note: Maintain two inches of clearance around vertical vent pipe
on rst twelve inches. See Figure 18.
For horizontal vent, maintain a minimum one-inch clearance to
the bottom and sides of the vent, and three-inch clearance to
combustibles above the vent pipe. See Figure 19.
NOTE: A two-inch clearance around pipe for the rst twelve inches
above the replace is required.
Finish the joint between the replace and wall with sealant rated
at 300 degrees F, or tile/stone over the joint.
Figure 18
Horizontal Vent Clearances - Figure 19
Flush Wall Installation - Figure 20
Combustible Surround Installation - Figure 21
Attention: Cold climate installation recommendation: When
installing this unit against a non-insulated exterior wall, the outer
walls should be insulated to conform to applicable codes.

35009-2-1015Page 18
INSTALLATION (continued)
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. (If the fan option is used.)
The appliance can be mounted on any of the following surfaces:
1. A at, hard combustible (burnable) surface.
2. A raised wooden platform.
3. Four corner supports. (Example: Four concrete masonry blocks.)
These supports must be positioned so they contact all four
perimeter edges on the bottom of the unit.
Securing the Vent Pipe to the Fireplace
1. Hand bend the tabs up on the Outer Wrapper Top Assembly
as shown in Figure 22.
Figure 22
2. Insert the rst piece of pipe and secure with 4 screws through
the tabs and into the pipe. See Figures 23 and 24.
Figure 23
Figure 24
VERTICAL, 90 DEGREE ELBOW WITH HORIZONTAL
TERMINATION
3” (76mm)
MINIMUM CLEARANCE
TO COMBUSTIBLES
VENT CAP/
THIMBLE
WALL FIRESTOP
“A”
DISTANCE
TO BOTTOM
OF UNIT
12 INCH
RISE
REQUIRED
A DIMENSION (in inches)
DVCX36 57-1/2
DVCX42 57-1/2
Figure 25

35009-2-1015 Page 19
INSTALLATION (continued)
VERTICAL, 90 DEGREE ELBOW TO HORIZONTAL OUT THE
WALL (12” minimum rise before elbow)
Dimensions (in inches)
A B C
914 to 15-1/2 4-3/4 to 6-1/4
12 17 to 18-1/2 4-3/4 to 9-1/4
18 20 to 21-1/2 10-3/4 to 12-1/4
Figure 26
CORNER INSTALLATION - VERTICAL, 90 DEGREE ELBOW
TO HORIZONTAL OUT THE WALL (12” minimum rise before
elbow)
DIMENSIONS (in inches)
Dim. DVCX36 DVCX42
A 47 49-7/8
B 33-1/4 35-1/4
C 13-3/4 15-1/8
D 66-3/8 70-1/2
Figure 27
After installing the vent system, install ue heat shield.
1. Hand bend tabs on ue heat shield out 90°.
2. Attach to insulation box as shown in Figure 26.
Figure 28 (vent pipe removed for clarity)

35009-2-1015Page 20
Begin the vent system installation by selecting the type of venting
to be installed and the path that it will take. Verify that clearances
are met throughout the path of the venting system.
Determine how the vent system will be terminated out the side of
the house or through the roof. Verify clearances for the termination.
When selecting a vent system for use with the replace, refer to
the “Special Vent Systems” section in this manual to determine
what systems are acceptable. Check all clearances and venting
components. Identify if any problems existing in the vent system.
Use Figure 35 on Page 23 for venting to eliminate issues after
installation. Check pipe diameter on vent system and replace to
verify the size is the same.
NOTICE: All outer connection joints must be sealed with aluminum
tape, screws or silicone sealant rated above 300°F/149°C. The inner
ue joints do not require any sealant.
Figure 29
VENT SYSTEM IDENTIFICATION
Special DV Vent Kits
Available from Empire Comfort Systems, Inc. dealers.
DVVK-5TP
Direct-Vent Fireplace Vent Kit for Top Vent, Thru-the-wall,
4 to 6 inch wall thickness, Includes 58DVA-E90, 58DVA-HC,
58DVA-06, and 58DVA-WTEC
DVVK-5VP Direct Vent Fireplace Vent Kit - Vertical, Includes
58DVA-VCH, 58DVA-SC, and 58DVA-F6
DVVK-5F Horizontal Flex Vent Kit (4' Flex) (1.22m) (requires 58DVA-06
pipe)
For venting a replace through the top, see Page 23.
VENT SYSTEMS
Use one of the following 5 x 8 vent systems:
Simpson Duravent® GS
Simpson Duravent® DVA-H2
American Metal Products (round cap only)
Selkirk Direct-Temp®
Security Secure Vent®
Excel DV Venting
Empire Horizontal Flex Vent Kit DVVK-5F
Metal Fab Sure Seal® (Note: Adaptor pipe starter required)