Heat-N-Glo CFX-TV36B Assembly instructions

1
- Do not store or use gasoline or other flam-
mable 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 fire department.
- Installation and service must be performed by a
qualified installer, service agency, or the gas
supplier.
Model:
CFX-TV36B
Installers Guide
WARNING: IMPROPER INSTALLA-
TION, ADJUSTMENT, ALTERATION,
SERVICE OR MAINTENANCE CAN
CAUSE INJURY OR PROPERTY DAM-
AGE. REFER TO THIS MANUAL. FOR
ASSISTANCE OR ADDITIONAL INFOR-
MATION CONSULT A QUALIFIED IN-
STALLER, SERVICE AGENCY, OR THE
GAS SUPPLIER.
Underwriters
Laboratories Listed
592-900F 5/00
READ THIS MANUAL BEFORE INSTALLING OR
OPERATING THIS APPLIANCE. THIS INSTALLERS
GUIDE MUST BE LEFT WITH APPLIANCE FOR
FUTURE REFERENCE.
Please contact your Heat-N-Glo dealer for any
questions or concerns. For the number of your
nearest Heat-N-Glo dealer, please call 952-985-6000.
Printed in U.S.A. Copyright 2000,
Heat-N-Glo, a division of Hearth Technologies Inc.
20802 Kensington Boulevard, Lakeville, MN 55044
WARNING: IF THE INFORMATION
IN THESE INSTRUCTIONS IS NOT
FOLLOWED EXACTLY, A FIRE OR
EXPLOSION MAY RESULT CAUS-
ING PROPERTY DAMAGE, PER-
SONAL INJURY, OR DEATH.
This product is covered by one or more of the following patents: (United States) 4,112,913; 4,408,594; 4,422,426; 4,424,792; 4,520,791; 4,793,322;
4,852,548; 4,875,464; 5,000,162; 5,016,609; 5,076,254 5,191,877; 5,218,953; 5,328,356; 5,429,495; 5,452,708; 5,542,407; 5,613,487; (Australia)
543790; 586383; (Canada) 1,123,296; 1,297,746; 2,195,264; (Mexico) 97-0457; (New Zealand) 200265; or other U.S. and foreign patents pending.

2
These units MUST use one of the vent systems
described in the Installing the Fireplace section of
the Installers Guide. NO OTHER vent systems or
components MAY BE USED.
This gas fireplace and vent assembly MUST be
vented directly to the outside and MUST NEVER be
attached to a chimney serving a separate solid fuel
burning appliance. Each gas appliance MUST USE
a separate vent system. Common vent systems are
PROHIBITED.
INSPECT the external vent cap on a regular basis to
make sure that no debris is interfering with the air
flow.
The glass door assembly MUST be in place and
sealed, and the trim door assembly MUST be in
place on the fireplace before the unit can be placed
into safe operation.
DO NOT OPERATE this appliance with the glass
door removed, cracked, or broken. Replacement of
the glass door should be performed by a licensed
or qualified service person. DO NOT strike or slam
the glass door.
The glass door assembly SHALL ONLY be
replaced as a complete unit, as supplied by the gas
fireplace manufacturer. NO SUBSTITUTE material
may be used.
DO NOT USE abrasive cleaners on the glass door
assembly. DO NOT ATTEMPT to clean the glass
door when it is hot.
Turn off the gas before servicing this appliance. It is
recommended that a qualified service technician
perform an appliance check-up at the beginning of
each heating season.
Any safety screen or guard removed for servicing
must be replaced before operating this appliance.
READ and UNDERSTAND all instructions carefully
before starting the installation. FAILURE TO
FOLLOW these installation instructions may result
in a possible fire hazard and will void the warranty.
Prior to the first firing of the fireplace, READ the
Using Your Fireplace section of the Owners Guide.
DO NOT USE this appliance if any part has been
under water. Immediately CALL a qualified service
technician to inspect the unit and to replace any part
of the control system and any gas control which has
been under water.
THIS UNIT IS NOT FOR USE WITH SOLID FUEL.
Installation and repair should be PERFORMED by a
qualified service person. The appliance and venting
system should be INSPECTED before initial use
and at least annually by a professional service
person. More frequent cleaning may be required
due to excessive lint from carpeting, bedding
material, etc. It is IMPERATIVE that the units
control compartment, burners, and circulating air
passageways BE KEPT CLEAN to provide for
adequate combustion and ventilation air.
Always KEEP the appliance clear and free from
combustible materials, gasoline, and other
flammable vapors and liquids.
NEVER OBSTRUCT the flow of combustion and
ventilation air. Keep the front of the appliance
CLEAR of all obstacles and materials for servicing
and proper operations.
Due to the high temperature, the appliance should
be LOCATED out of traffic areas and away from
furniture and draperies. Clothing or flammable
material SHOULD NOT BE PLACED on or near the
appliance.
Children and adults should be ALERTED to the
hazards of high surface temperature 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.
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SAFETY AND WARNING INFORMATION
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TABLE OF CONTENTS
Safety and Warning Information ....................................................... 2
Service Parts Lists ............................................................................ 4
Section 1: Approvals and Codes ...................................................... 6
Approval Listings and Codes ............................................................... 6
Appliance Certification.......................................................................... 6
Installation Codes ................................................................................. 6
High Altitude Installations ...................................................................... 6
Section 2: Getting Started ................................................................ 7
Introducing the Heat-N-Glo Gas Fireplaces ......................................... 7
Pre-installation Preparation .................................................................. 7
Section 3: Installing the Fireplace ................................................... 9
Step 1 Locating the Fireplace .......................................................... 9
Step 2 Framing the Fireplace........................................................... 9
Step 3 Negative Pressure Make-up Air .......................................... 10
Step 4 Installing the Vent System ................................................... 11
A. Vent System Approvals .................................................. 11
B. System Components .................................................... 11
C. Bedroom Installation in Canada .................................... 12
D. Vent Termination ........................................................... 12
Step 5 Positioning, Leveling, and
Securing the Fireplace........................................................ 12
Step 6 The Gas Control Systems .................................................. 12
Step 7 The Gas Supply Line .......................................................... 13
Step 8 Gas Pressure Requirements ............................................. 13
Step 9 Wiring the Fireplace ........................................................... 14
Step 10 Finishing ............................................................................. 15
Step 11 Installing Trim, Logs, Ember Material and Glass Doors ......... 15
Installing the Trim ................................................................ 15
Positioning the Logs ........................................................... 15
Placing the Ember Material ................................................. 16
Installing Glass Doors .......................................................... 16
Step 12 Before Lighting the Fireplace .............................................. 16
Step 13 Lighting the Fireplace ......................................................... 16
After the Installation ............................................................................ 16
Section 4: Maintaining and Servicing Your Fireplace ................ 17
u= Contains updated information.
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CFX-TV36B-DSI (NG, LP) Exploded Parts Diagram / Vue éclatée des pièces
*Part number list on following page.
*La liste des numéros de pièce se
trouve à la page suivante.
3
4
2
9
7 Log Set Assembly
5
8
13
12
11
10
6
1

5
CFX-TV36B-DSI (NG, LP) Service Parts List / Liste des pièces de rechange
ITEM /
PIÈCE DSI IGNITION SERIAL # /N° DE SÉRIE PART NUMBER / N° DE PIÈCE
ON/OFF Wall Switch / Interrupteur mural Marche/Arrêt SRV130-511
Wall Switch Cover Plate / Cache de l'interrupteur mural SRV130-512
High Temp Limit Switch / Interrupteur de détection thermique SRV60-531
Burner Tube / Tube de brûleur SRV477-312
Burner Orifice NG (#34B) / Orifice de brûleur GN (#34B) SRV592-800
Burner Orifice LP (#51B) / Orifice de brûleur PL (#51B) SRV44-801
1 Bimetallic Flue Damper / Registre de tuyau bimétallique SRV492-110A
2 Hood / Hotte SRV592-243
3 Burner NG, LP / Brûleur GN, PL SRV592-174A
4 Grate Assembly / Module de Grille SRV592-360A
5 Base Refractory / Réfractaire SRV592-740
6 Refractory, Top / Réfractaire, Dessus SRV592-742
7 Log Set Assembly / Jeu de Bûches LOGS-TV36B
8 Log 1 / Bûche 1 SRV446-701
9 Log 2 / Bûche 2 SRV446-702
10 Log 3 / Bûche 3 SRV446-703
11 Log 4 / Bûche 4 SRV540-704
12 Log 5 / Bûche 5 SRV560-702
13 Log 6 / Bûche 6 SRV446-706
Junction Box / Boîtier de raccordement SRV100-254A
Valve NG / Valve GN SRV492-500
Valve LP / Valve PL SRV492-501
Electrode / Électrode SRV501-591
Module / Module SRV501-592
Accessories / Accessoires
Make-up Air Kit / Module de prise d'air de compensation AK-CFX
Remote Control Kit / Commande à distance RC-STAT
Remote Control Kit / Commande à distance SMART-STAT
Mesh Assembly / Module de Écran MESH-CFX
NG Conversion Kit / Module de conversion au GN NGK-TV36B
LP Conversion Kit / Module de conversion au propane LPK-TV36B
Cabinet Doors / Portes à battant GDA-CFXT
Bi-Fold Glass Door / Porte enverre pliante GDA-CFXT-BFBK
IMPORTANT: THIS IS DATED INFORMATION. The most current information is located on your dealers VIP site. When
ordering, supply serial and model numbers to ensure correct service parts.

6
Appliance Certification
The Heat-N-Glo fireplace model discussed in this Installers
Guide has been tested to certification standards and listed
by the applicable laboratories.
Certification
MODEL: CFX-TV36B
LABORATORY: Underwriters Laboratories
TYPE: Direct Vent Gas Fireplace
STANDARD: ANSI Z21.50CGA2.22
Installation Codes
The fireplace installation must conform to local codes. Before
installing the fireplace, consult the local building code
agency to ensure that you are in compliance with all
applicable codes, including permits and inspections.
In the absence of local codes, the fireplace installation must
conform to the National Fuel Gas Code ANSI Z223.1 (in
the United States) or the CAN/CGA-B149 Installation Codes
(in Canada). The appliance must be electrically grounded
in accordance with local codes or, in the absence of local
codes with the National Electric Code ANSI/NFPA No. 70
(in the United States), or to the CSAC22.1 Canadian Electric
Code (in Canada).
This model (natural gas and propane) can be installed in a
bedroom (in the United States) which has a total volume of
unconfined space appropriate to the particular installation.
Refer to the National Fuel Gas CodeANSI Z223.1/NFPA54
1Approvals and
Codes
(current edition). The Uniform Mechanical Code - (current
edition), and local Building Officials for the options allowed
in obtaining an effective bedroom volume of unconfined
space.
This model (natural gas and propane) can be installed in a
bedroom (in Canada) if a thermostat (Model WH-STAT) is
installed with the unit. Consult local code authorities.
Detailed installation instructions for Model WH-STAT are
included with the kit.
High Altitude Installations
U.L. Listed gas fireplaces are tested and approved for
elevations from 0 to 2,000 feet in the U.S.A. and from 0 to
4,500 feet in Canada.
When installing this fireplace at an elevation above 2,000
feet (in the United States), it may be necessary to decrease
the input rating by changing the existing burner orifice to a
smaller size. Input should be reduced four percent (4%) for
each 1,000 feet above sea level, unless the heating value of
the gas has been reduced, in which case this general rule
will not apply. To identify the proper orifice size, check with
the local gas utility.
When installing this fireplace at an elevation between 2,000
and 4,500 feet (in Canada), the input rating must be reduced
by ten percent (10%).
When installing this fireplace at an elevation above 4,500
feet (in Canada), check with local authorities.
Consult your local gas utility for assistance in determining
the proper orifice for your location.
Heat-N-Glo Quality
Systems registered
by SGS ICS

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2Getting Started
Introducing the Heat-N-Glo Gas Fireplaces
This gas fireplace is designed to operate with all exhaust
gases expelled to the outside of the building. The vent sys-
tem for this fireplace must be 6-inch Class B chimney as
shown in the venting section of this manual.
The information contained in this Installers Guide, unless
noted otherwise, applies to all models and gas control
systems. Gas fireplace diagrams, including the dimensions,
are shown in this section.
Pre-install Preparation
This gas fireplace and its components are tested to perform
only when installed in accordance with this Installers Guide.
Report to your dealer any parts damaged in shipment,
particularly the condition of the glass. Do not install any
unit with damaged, incomplete, or substitute parts.
The vent system components are shipped in separate
packages. The gas logs are shipped with the unit and
installed per log instructions.
Read all of the instructions before starting the
installation. Follow these instructions carefully during
the installation to ensure maximum safety and benefit.
Failure to follow these instructions will void the
owners warranty and may present a fire hazard.
WARNING: IF THERE IS ANY NOTICEABLE
DAMAGE TO THE FIBER FIREBOX PLEASE
CONTACT YOUR DEALER FOR FURTHER
INSTRUCTIONS.
The Heat-N-Glo Warranty will be voided by, and Heat-N-Glo
disclaims any responsibility for, the following actions:
 Installation of any damaged fireplace or vent system
component.
 Modification of the fireplace or vent system components.
 Installation other than as instructed by Heat-N-Glo.
 Improper positioning of the gas logs or the glass door.
 Installation and/or use of any component part not manu-
factured and approved by Heat-N-Glo, not withstanding
any independent testing laboratory or other party approval
of such component part or accessory.
ANY SUCH ACTION MAY POSSIBLY CAUSE A FIRE
HAZARD.
When planning a fireplace installation, its necessary to
determine:
Where the unit is to be installed.
The vent system configuration to be used.
Gas supply piping.
Electrical wiring.
Framing and finishing details.
Whether optional accessoriesdevices such as a re-
mote controlare desired.
If the fireplace is to be installed on carpeting or tile, or on
any combustible material other than wood flooring, the
fireplace should be installed on a metal or wood panel that
extends the full width and depth of the fireplace.

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Figure 1. Diagram of the CFX-TV36B

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3Installing the Fireplace
Step 1. Locating the Fireplace
The diagram below shows space and clearance require-
ments for locating a fireplace within a room.
Minimum Clearances
from the Fireplace to Combustible Materials
Inches mm
Glass Front ........................ 36 .................... 914
Floor ................................... 0 ....................... 0
Rear ...................................1/2 ..................... 13
Sides .................................1/2 ..................... 13
Top ...................................... 4 ..................... 102
Ceiling* .............................. 50 ....................1270
Figure 2. Fireplace Dimensions, Locations,
and Space Requirements
Clearance Requirements
The top, back, and sides of the fireplace are defined by
stand-offs. The minimum clearance to a perpendicular wall
extending past the face of the fireplace is one inch (25
mm). The back of the fireplace may be recessed 18 3/4
inches (476 mm) into combustible construction.
Figure 3. Framing Dimensions
The distance from the unit to combustible construction
is to be measured from the unit outer wrap surface to
the combustible construction, NOT from the screw
heads that secure the unit together.
Minimum Clearances from the Class B Chimney Vent
Pipe to Combustible Materials is 1 inch (25mm) all
around the pipe.
Step 2. Framing the Fireplace
Fireplace framing can be built before or after the fireplace is
set in place. Framing should be positioned to accommo-
date wall coverings and fireplace facing material. The dia-
gram below shows framing reference dimensions.
CAUTION: MEASURE FIREPLACE DIMENSIONS AND
VERIFY FRAMING METHODS AND WALL COVERING
DETAILS BEFORE FRAMING.
* The clearance to the ceiling is measured from the top
of the unit, excluding the standoffs (see Figure 11).
Framing should be
constructed of 2 X 4
lumber or heavier.
A BCD
36 3/4 35 13/16 19 3/4 29 15/16
NOTE: You must place the supplied (required) non-
combustible board on the top front face of the unit once the
unit is in place. See Figure 11.

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Step 3. Negative Pressure Make-up Air
Negative Pressure warning: When negative pressure is
present, an atmospherically vented fireplace may not
function properly and it may down draft. In the case of a
gas appliance, spillage of the combustion gases may occur.
This may create a dangerous carbon monoxide
situation in the house.
The causes of negative pressure to a house can include
the following:
 Stack effect in the building.
 Exhaust only appliances (mechanically and
atmospherically vented).
 Inadequate make-up air (which is increasingly
more prevalent in new construction).
This unit does contain a high temperature
limit switch that will turn off the fireplace if
the flue damper is not open or in a negative
pressure situation.
NOTE: This fireplace will operate correctly only if adequate
ventilation is provided to allow proper draft to the fireplace
system. Heat-N-Glo assumes no responsibility for the
improper performance of the fireplace system caused by
inadequate draft due to environmental conditions, down
drafts, tight sealing construction of the structure, or
mechanical exhausting devices which create a negative air
pressure within the structure where the fireplace is located.
It is recommended that all natural venting non-air tight gas
fireplaces have outside air connected to them. It is also
recommended that the building be mechanically or passively
balanced to allow atmospherically vented appliances, such
as top vented gas fireplaces with draft hoods, to draft
properly. If the home experiences negative pressure or is
likely to experience negative pressure, connection to an
outside air source is mandatory.
Installing Outside Make-up Air:
This unit is equipped to accept outside air. It is RECOM-
MENDED that an AK-CFX air kit be used with this appli-
ance. The 4-inch (102mm) side collar for the air kit is pro-
vided on the side of the fireplace. See Figure 4. Detailed
installation instructions for the Model AK-CFX Outside Air
kit are found in the kit. Follow these instructions to com-
plete the installation.
Figure 4. Make-up Air
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This appliance also contains a make-up air damper which
is manually opened and closed from inside of the firebox.
Pull forward to open, push back to close. See Figure 4.
CAUTION: DO NOT OPERATE THE AIR DAMPER WHEN
UNIT IS HOT.
WARNING: IN A NEGATIVE PRESSURE CON-
DITION (LIKELY TO OCCUR IN NEW HOMES
THAT DO NOT HAVE ADEQUATE MAKE-UP AIR) THE
OUTSIDE AIR KIT MUST BE INSTALLED TO OB-
TAIN PROPER PERFORMANCE AND TO HELP PRE-
VENT SPILLAGE OF COMBUSTION GASES.

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Step 4. Installing the Vent System
A. Vent System Approvals
Model CFX-TV36B is approved to use 6-inch (152mm)
diameter B-type vent. B-type vent must be used when the
vent system is within combustible construction.
The flame and ember appearance may vary based on the
type of fuel burned and the venting configuration used.
B. System Components.
Vent System Configuration
RISE TO RUN RATIO = 2:1
MAXIMUM TOTAL HORIZONTAL RUN = 15 FT.
MINIMUM TOTAL VERTICAL RISE = 9 FT.
MAXIMUM NO. Of ELBOWS: 2 - 90oor 4 - 45o
Plan and install the vent system using the parameters shown
above.
WARNING: YOU MUST NOT EXCEED THESE
PARAMETERS.
Connect a B-Type vent component to the flue outlet collar.
Look at the vent pipe through the holes in the 10 5/8 ring to
check that the vent pipe is attached.
NOTE: It is always better to first attach a straight section
of vent to the unit before attaching an elbow. Avoid
using elbows in the vent system if possible.
Continue to add vent components, until the vent run is
completed.
WARNING: YOU MUST NOT EXCEED A TOTAL
MAXIMUM HORIZONTAL RUN OF 15 FEET FOR
THE ENTIRE VENT SYSTEM.
Figure 5. Vent System Attachment
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NOTE: The vent termination must be in a vertical posi-
tion and the termination cap must be listed for the
vent pipe used.
Consult local building code officials and codes for proper
vent system installations.
WARNING: THIS GAS FIREPLACE MUST NEV-
ER BE VENTED BY CONNECTING TO A CHIM-
NEY FLUE SERVING A SEPARATE SOLID FUEL
BURNING APPLIANCE.
Rise to Run Ratio 2:1
H (Maximum) = 15 Ft.
V (Minimum) = 9 Ft.

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C. Bedroom Installation in Canada
This model MUST NOT be vented into a vent system in-
stalled exterior to a building. The part of the vent system
above the roof line can be exterior to the building.
D. Vent Termination
WARNING: MAJOR U.S. BUILDING CODES
SPECIFY MINIMUM CHIMNEY AND/OR VENT
HEIGHT ABOVE THE ROOF TOP. THESE MIN-
IMUM HEIGHTS ARE NECESSARY IN THE IN-
TEREST OF SAFETY. FIGURE 6 AND TABLE
SHOW MINIMUM HEIGHTS, PROVIDED THE
TERMINATION CAP IS AT LEAST 8-FEET
FROM A VERTICAL WALL.
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ROOF PITCH H (MIN.) FT.
FLAT TO 6/12 1.0
6/12 TO 7/12 1.25
OVER 7/12 TO 8/12 1.5
OVER 8/12 TO 9/12 2.0
OVER 9/12 TO 10/12 2.5
OVER 10/12 TO 11/12 3.25
OVER 11/12 TO 12/12 4.0
OVER 12/12 TO 14/12 5.0
OVER 14/12 TO 16/12 6.0
OVER 16/12 TO 18/12 7.0
OVER 18/12 TO 20/12 7.5
OVER 20/12 TO 21/12 8.0
Figure 6. Vent Termination
VENT
CAP
12 X
ROOF PITCH
IS X/ 12
LOWEST
DISCHARGE
OPENING
H (MIN.) - MINIMUM HEIGHT FROM ROOF
TO LOWEST DISCHARGE OPENING
Step 5. Positioning, Leveling, and
Securing the Fireplace
To properly position, level, and secure the fireplace:
 Place the fireplace into position (see Figure 7).
 Level the fireplace from side to side and from front to
back.
 Shim the fireplace with non-combustible material, such
as sheet metal, as necessary.
 Secure the fireplace to the framing by nails or screws us-
ing nailing tabs.
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Figure 7. Proper Positioning, Leveling,
and Securing of a Fireplace
Step 6. The Gas Control Systems
WARNING: THIS UNIT IS NOT FOR USE WITH
SOLID FUEL.
This model uses a Direct Spark Ignition (DSI) gas control
system.
Direct Spark Ignition (DSI) System
The DSI system includes a 110VAC control valve, electron-
ic module, and spark ignitor/flame sensor.
WARNING: 110-120 VAC MUST BE WIRED TO
THE FIREPLACE JUNCTION BOX IN A DSI
SYSTEM.
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NON-COMBUSTIBLE
BOARD PROVIDED
WITH THE UNIT.
See Figures
3 and 11.

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Figure 9. Gas Supply Line
 Insert insulation from the outside of the fireplace and
pack the insulation tightly to totally seal between the
pipe and the outer casing.
 At the gas line access hole the gap between the supply
piping and gas access hole can be plugged with non-
combustible insulation to prevent cold air infiltration.
Step 7. The Gas Supply Line
NOTE: Have the gas supply line installed by a qualified
service technician in accordance with all building codes.
NOTE: Before the first firing of the fireplace, the gas
supply line should be purged of any trapped air.
NOTE: Consult local building codes to properly size
the gas supply line leading to the 1/2 inch
(13 mm) hook-up at the unit.
This gas fireplace is designed to accept a 1/2 inch
(13 mm) gas supply line.
To install the gas supply line:
 A listed 1/2 inch (13 mm) manual shut-off valve and a
listed flexible gas connector are connected to the 3/8
inch (10 mm) inlet of the control valve.
 Locate the gas line access hole in the outer casing of
the fireplace.
 Access the fireplace controls compartment, insert the
gas supply line through the gas line hole, and connect it
to the shut-off valve.
 When attaching the pipe, support the control so that the
lines are not bent or torn.
 After the gas line installation is complete, use a soap
solution to carefully check all gas connections for leaks.
WARNING: DO NOT USE AN OPEN FLAME
TO CHECK FOR GAS LEAKS.
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Step 8. Gas Pressure Requirements
Pressure requirements for Heat-N-Glo gas fireplaces
are shown in the table below.
Pressure Natural Gas Propane
Minimum 5.0 inches 11.0 inches
Inlet Pressure w.c. w.c.
Maximum Inlet 14.0 inches 14.0 inches
Gas Pressure w.c. w.c.
Manifold 3.5 inches 10.0 inches
Pressure w.c. w.c.
A one-eighth (1/8) inch (3 mm) N.P.T. plugged tapping is
provided on the inlet and outlet side of the gas control for a
test gauge connection to measure the manifold pressure.
The fireplace and its individual shut-off valve must be
disconnected from the gas supply piping system during
any pressure testing of the system at test pressures in
excess of one-half (1/2) psig (3.5 kPa).
The fireplace must be isolated from the gas supply piping
system by closing its individual shut-off valve during any
pressure testing of the gas supply piping system at test
pressures equal to or less than one-half (1/2) psig (3.5 kPa).
Figure 8. Gas Control System
DSI IGNITION
1/4" (6mm)
GAS
VALVE
MANUAL
SHUT-OFF VALVE
FLEX
CONNECTOR

14
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Appliance Requirements
This appliance requires that 110-120 VAC be wired to the
factory installed junction box. Maintain correct polarity when
wiring the junction box.
Remote Wall Switch
Position the remote wall switch (shipped with the fireplace)
in the desired position on a wall. Run 16 A.W.G. minimum
Romex wire and connect it to the pigtail wires on the fireplace.
CAUTION: LABEL ALL WIRES PRIOR TO DISCONNEC-
TION WHEN SERVICING CONTROLS. WIRING ERRORS
Figure 10. Direct Spark Ignition (DSI) Wiring Diagram
CAN CAUSE IMPROPER AND DANGEROUS OPERA-
TION. VERIFY PROPER OPERATION AFTER SERVICING.
WARNING: ON/OFF PIGTAIL WIRES CARRY 110-
120 VAC. USE SUITABLE 16 A.W.G. MINIMUM
ROMEX WIRE WHEN INSTALLING REMOTE
WALL SWITCH.
Optional Accessories
Optional remote control kits require that 110-120 VAC be
wired to the fireplace junction box.
WARNING: TO AVOID POTENTIAL OVERHEAT-
ING TO THE REMOTE CONTROL RECEIVER, IT
MUST BE PLACED ON THE RIGHT-HAND SIDE OF
THE BASEPAN - BURNER ASSEMBLY, ADJACENT
TO JUNCTION BOX. REMOVE AND DISCARD THE
HEAT SHIELD PROVIDED WITH THE REMOTE CON-
TROL. IT IS NOT REQUIRED ON MODEL CFX-TV36B.
Step 9. Wiring the Fireplace
NOTE: Electrical wiring must be installed by a licensed
electrician.
CAUTION: DISCONNECT REMOTE CONTROLS IF AB-
SENT FOR EXTENDED TIME PERIODS. THIS WILL PRE-
VENT ACCIDENTAL FIREPLACE OPERATION.
OPTIONAL REMOTE,
WALL SWITCH OR
THERMOSTAT
BLACK
JUNCTION
BOX
120 VAC
L2
(NEUTRAL)
L1
(HOT)
REM FAN
120 VAC
POWER CORD
GROUND
OPTIONAL FAN
SWITCHES
WHITE
BLUE
WHITE
BLUE DSI
MODULE
IGNITOR
HIGH TEMP.
LIMIT SWITCH
DSI CONTROL
VALVE
GREY
SUPRESSION
CABLE
WHITE
YELLOW
GREEN
BLUE
GROUND
TO
FIREPLACE
CHASSIS
WHITE
BLACK

15
Step 10. Finishing
Figure 11 shows the minimum vertical and corresponding
maximum horizontal dimensions of fireplace mantels or other
combustible projections above the top front edge of the
fireplace. See Figures 2 and 3 for other fireplace clearances.
Only non-combustible materials may be used to cover the
black fireplace front, sides, top and bottom.
Figure 11.
Minimum Vertical and Maximum Horizontal
Dimensions of Combustibles above Fireplace
CAUTION: IF JOINTS BETWEEN THE FINISHED WALLS
AND THE FIREPLACE SURROUND (TOP AND SIDES)
ARE SEALED, A 300° F. MINIMUM SEALANT MATE-
RIAL MUST BE USED. THESE JOINTS ARE NOT RE-
QUIRED TO BE SEALED. ONLY NON-COMBUSTIBLE
MATERIAL (USING 300° F. MINIMUM ADHESIVE, IF
NEEDED) CAN BE APPLIED AS FACING TO THE FIRE-
PLACE SURROUND. SEE THE DIAGRAM BELOW.
Hearth Extensions
A hearth extension may be desirable for aesthetic reasons.
However, ANSI or CAN/CGAtesting standards do not require
hearth extensions for gas fireplace appliances.
Figure 12. Sealant Material
Installing the Trim
Combustible materials may be brought up to the specified
clearances on the side and top front edges of the fireplace,
but MUST NEVER overlap onto the front face. The joints
between the finished wall and the fireplace top and sides
can only be sealed with a 300° F (149° C) minimum sealant.
Install optional marble and brass trim surround kits as
desired. Marble, brass, brick, tile, or other non-combustible
materials can be used to cover up the gap between the
sheet rock and the fireplace.
Step 11. Installing Trim, Logs, Ember
Material and Glass Doors
Positioning the Logs
The logs for model CFX-TV36B have been packaged sepa-
rately. Refer to the installation instructions that accompa-
ny the logs. Save the log instructions with this manual.
If sooting occurs, the logs might need to be repositioned
slightly to avoid excessive flame impingement.
!
WARNING: IF NON-COMBUSTIBLE MATERIAL
SUCH AS BRICK IS USED TO COVER THE
BLACK FACE OF THE FIREPLACE SURROUNDS,
THE JOINTS BETWEEN THE FACING MATERIAL
(BRICK, ETC.) AND THE FIREPLACE MUST BE
THOROUGHLY SEALED OR A FIRE COULD RESULT.
27”
16”
6 3/4”
5 7/8”
1”
6”
12”
NON-COMBUSTIBLE
MATERIAL
(SUPPLIED)
NON-COMBUSTIBLE LEDGE
CEILING
50”

16
Figure 13.
Placement of the Ember Material
!
!
Step 12. Before Lighting the Fireplace
Before lighting the fireplace, be sure to do the following:
Remove all paperwork from underneath the fireplace.
Review safety warnings and cautions
 Read the Safety and Warning Information section at
the beginning of this Installers Guide.
Double-check for gas leaks
 Before lighting the fireplace, double-check the unit for
possible gas leaks.
Double-check vent terminations and front grilles for
obstructions.
 Before lighting the fireplace, double-check the unit for
possible obstructions that could be blocking the vent ter-
mination or the front of the fireplace.
Double-check for faulty components
 Any component that is found to be faulty MUST BE re-
placed with an approved component. Tampering with the
fireplace components is DANGEROUS and voids all war-
ranties.
A small amount of air will be in the gas supply lines. When
first lighting the fireplace, it will take a few minutes for the
lines to purge themselves of this air. Once the purging is
complete, the fireplace will light and will operate normally.
Subsequent lightings of the fireplace will not require this
purging of air from the gas supply lines, unless the manual
shut-off valve has been turned to the OFF position, in
which case the air would have to be purged.
NOTE: The fireplace should be run for 8 hours on the initial
start-up. This will help to cure the chemicals used in the
paint and logs.
Step 13. Lighting the Fireplace
Youve reviewed all safety warnings, youve checked the
fireplace for gas leaks, you know the vent system is
unobstructed, and youve checked for faulty components.
Now youre ready to light the fireplace.
WARNING: PLEASE REFER TO THE USERS
MANUAL FOR ALL CAUTIONS, SAFETY, AND
WARNING INFORMATION PERTAINING TO THE
LIGHTING AND OPERATION OF THE FIREPLACE.
After the Installation
LEAVE THIS INSTALLATION MANUAL WITH
THE APPLIANCE FOR FUTURE REFERENCE.
Placing the Ember Material
Ember material is shipped with this gas fireplace. The bag
labeled Golden Ember (GE-93) is flame colorant material.
The bag labeled Glowing Ember (050-721) is standard
glowing ember material. To place the ember material:
 Open or remove the glass door from the unit.
 Place dime size pieces of ember material about 1/2 inch
apart near port holes in burner top. Do NOT press em-
bers into burner ports. Cover the top of the burner with a
single layer of ember material. For best performance do
NOT place embers on the ports at the rear of the burner
(see Figure 13).
 Save the remaining ember materials for use during fire-
place servicing. The bag of embers provided is sufficient
for 3 to 5 applications.
 Replace or close the glass door.
GLASS SPECIFICATIONS:
CFX-TV36B 22 1/4 x 33 3/4 TEMPERED
The glass door assembly SHALL ONLY be replaced as a
complete unit, as supplied by the gas fireplace manufacturer.
NO SUBSTITUTE material may be used.
Installing Glass Doors *(Optional)
 Attach u-channel and door clips on top door ledge per
installation instructions. See Figure 14.
 Slide bottom door shaft into the hole on bottom door
panel. Slide top door shaft down spring clip until the
door shaft positions in spring clip hole.
NOTE: Some door styles may have different assembly
methods, so follow the instructions provided with the doors.
 The doors may be used both FULLY open or FULLY closed.
*PLEASE NOTE: Glass doors are an optional compo-
nent and are not required.
EMBER MATERIALS
Figure 14.
Glass Door Assembly

17
4Maintaining and Servicing Your Fireplace
Fireplace Maintenance
Although the frequency of your fireplace servicing and main-
tenance will depend on use and the type of installation, you
should have a qualified service technician perform an appli-
ance check-up at the beginning of each heating season.
See the table below for specific guidelines regarding each
fireplace maintenance task.
IMPORTANT: TURN OFF THE GAS BEFORE SERVICING
YOUR FIREPLACE.
Replacing old ember material
Frequency: Once annually, during the checkup.
By: Qualified service technician.
Task: Brush away loose ember material near the burner.
Replace old ember material with new dime-size and shape
pieces of Golden Ember (DE-93) and Glowing Ember (050-
721). New ember material should be placed alternately on
top of the burner - a layer of Golden Ember, a layer of
Glowing Ember, and so on. Save the remaining ember
material and repeat this procedure at your next servicing.
For more information, see Placing Ember Material.
Cleaning Burner and Controls
Frequency: Once annually.
By: Qualified service technician.
Task: Brush or vacuum the control compartment, fireplace
logs and burner areas surrounding the logs.
Checking Flame Patterns, Flame Height
Frequency: Periodically.
By: Qualified service technician/Home owner.
Task: Make a visual check of your fireplaces flame patterns.
Make sure the flames are steady - not lifting or floating.
See Figure 15. The flame sensor (DSI) tips should be
covered with flame. See Figure 16.
Figure 15. Burner Flame Patterns
MAKE SURE THE FLAMES
ARE STEADYNOT
LIFTING OR FLOATING.
Checking Vent System
Frequency: Before initial use and at least annually
thereafter, more frequently if possible.
By: Qualified service technician/Home owner.
Task: Inspect the external vent cap on a regular basis to
ensure that no debris is interfering with the flow of air. Inspect
entire vent system for proper function.
Cleaning Glass Door
Frequency: As necessary
By: Home owner.
Task: Clean as necessary, particularly after adding new ember
(flame colorant) material. Film deposits on the inside of the
glass door should be cleaned off using a household glass
cleaner. NOTE: DO NOT handle or attempt to clean the
door when it is hot and DO NOT use abrasive cleaners.
NOTE: FLAMES TOO CLOSE TO THE CERAMIC IN-
SULATORS CAN CAUSE NUISANCE LOCKOUTS
AND ELECTRODE FAILURE.
Figure 16. Ignitor Flame Patterns
7/8” (22mm)
3/8” (9mm)