Owner’s Manual
Installation and Operation
Model:
CFX-Crescent
CAUTION
DO NOT DISCARD THIS MANUAL
Important operating
and maintenance
instructions included.
Read, understand and follow
these instructions for safe
installation and operation.
Leave this manual with
party responsible for
use and operation.
•
•
•
WARNING
WARNING: If the information in these
instructions is not followed exactly, a fire
or explosion may result causing proper-
ty damage, personal injury, or death.
HOT SURFACES!
Í
Glass and other surfaces are hot during
operation AND cool down.
Hot glass will cause burns.
•
•
•
DO NOT touch glass until it is cooled
NEVER allow children to touch glass
Keep children away
• Do not store or use gasoline or other flamma-
ble vapors and liquids in the vicinity of this or
any other appliance.
• CAREFULLY SUPERVISE children in same room as fireplace.
• Alert children and adults to hazards of high temperatures.
• What to do if you smell gas
- Do not try to light any appliance
High temperatures may ignite clothing or other flammable
materials.
- Do not touch any electrical switch. Do not
use any phone in your building.
• Keep clothing, furniture, draperies and other flammable
materials away.
- Immediately call your gas supplier from a
neighbor’s phone. Follow the gas supplier’s
instructions.
This appliance has been supplied with an integral barrier
to prevent direct contact with the fixed glass panel. DO
NOT operate the appliance with the barrier removed.
- If you cannot reach your gas supplier, call
the fire department.
Contact your dealer or Hearth & Home Technologies if the
barrier is not present or help is needed to properly install one.
• Installation and service must be performed by
a qualified installer, service agency, or the gas
supplier.
In the Commonwealth of Massachusetts installation must
be performed by a licensed plumber or gas fitter.
See Table of Contents for location of additional
Commonwealth of Massachusetts requirements.
This appliance may be installed as an OEM installation in
manufactured home (USA only) or mobile home and must
be installed in accordance with the manufacturer’s instruc-
tions and the manufactured home construction and safety
standard, Title 24 CFR, Part 3280 or Standard for Installa-
tion in Mobile Homes, CAN/CSA Z240MH.
Installation and service of this appliance should be
performed by qualified personnel. Hearth & Home
Technologies suggests NFI certified or factory-trained
professionals, or technicians supervised by an NFI
certified professional.
This appliance is only for use with the type(s) of gas indi-
cated on the rating plate.
Heat & Glo • CFX-CRESCENT • 705-900 Rev. P • 12/07
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1
Safety and Warning Information .............................. 2
Service Parts List ..................................................... 4
Í
Section 1: Approvals and Codes ........................... 6
Appliance Certification ........................................... 6
Installation Codes .................................................. 6
High Altitude Installations ...................................... 6
Commonwealth of Massachusetts Requirements . 7
Table of
Contents
Section 2: Getting Started...................................... 8
Introducing the Heat & Glo Gas Fireplaces............. 8
Pre-installation Preparation ................................... 8
Section 3: Installing the Fireplace ...................... 10
Step 1 Locating the Fireplace ............................ 10
Step 2 Framing the Fireplace ............................ 11
Step 3 Installing the Vent System ...................... 12
A. Vent SystemApprovals ...................... 12
B. Installing Vent Components ................ 16
C. Vent Termination ................................ 21
Step 4 Positioning, Leveling, and
Securing the Fireplace ........................... 26
Step 5 The Gas Control Systems ..................... 26
Step 6 The Gas Supply Line.............................. 27
Step 7 Gas Pressure Requirements ................. 28
Step 8 Wiring the Fireplace ............................... 29
Step 9 Finishing ................................................ 31
Step 10 Removing Glass Door, Installing Trim,
Logs and Ember Material ..................... 32
Removing Glass Door ........................... 32
Installing Door Handles .......................... 32
Positioning the Logs............................... 33
Shutter Settings ..................................... 33
Placing the Ember Material
and Lava Rocks..................................... 33
Step 11 Before Lighting the Fireplace .................. 34
Step 12 Lighting the Fireplace ............................. 34
After the Installation ............................................. 34
Section 4: Maintaining and Servicing
Your Fireplace ..................................... 35
Contact Information ............................................. 38
Í
Î = Contains updated information.
Heat & Glo • CFX-CRESCENT • 705-900 Rev. P • 12/07
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CFX-Crescent
Beginning Manufacturing Date: June 2000
Ending Manufacturing Date: ______
Service Parts
Service Parts Diagram
7
8
9
10
11
15
12
14
13
Log Set Assembly
16
6
1
4
5
2
3
Part number list on following page.
4
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CFX-Crescent
Service Parts List
IMPORTANT: THIS IS DATED INFORMATION. When requesting service or replacement
parts for your appliance please provide model number and serial number. All parts listed
in this manual may be ordered from an authorized dealer.
Î
Stocked
at Depot
ITEM
DESCRIPTION
SERIAL #
PART NUMBER
Log Set Assembly
Log 1
LOGS-CRESCENT
SRV705-701
SRV705-703
SRV705-702
SRV705-704
SRV705-705
SRV593-704
705-360A
Y
N
N
N
N
N
N
N
Y
Y
Y
Y
N
N
Y
N
N
N
Y
Y
Y
Y
Y
Y
Y
N
Y
N
N
N
1
2
3
4
5
6
7
Log 2
Log 3
Log 4
Log 5
Log 6
Grate Assembly
Pre 002182991
Post 002182991
Pre 002182991
Post 002182991
Pre 002182991
Post 002182991
705-326A
Burner NG
705-328A
8
705-325A
Burner LP
7035-327A
N/A
9
Fresh Air Diffuser
705-262
Glass Door Assembly
Insulation Support
Insulation Board
GLA-CRESCENT
10
11
12
13
705-260
705-403
705-567A
100-256A
Combustion Blower
Pre 002182991
Post 002182991
14
15
Junction Box
705-250A
386-122A
Glass Attachment Assembly - Bottom (qty. 2)
Glass Clip Assembly- Top (qty. 2)
Orifice NG (#36A)
SRV705-206A
Pre 002182991
Post 002182991
079-831
065-800
Orifice NG (#35A)
Orifice LP (#51A)
079-803
705-233
Finishing Strips (qty. 2)
Limit Switch
514-530
Mineral Wool
050-721
Lava Rock
705-420
Patch Kit
SRV-PATCH-CFX
DSI CONVERSION KITS (Pre 002182991)
Conversion Kit NG
Conversion Kit LP
NGK-CRESCENT
LPK-CRESCENT
Y
Y
IPI CONVERSION KITS (Post 2182991)
N/A
Conversion Kit NG
Conversion Kit LP
Pilot Orifice NG
Pilot Orifice LP
Y
Y
Y
Y
LPK-CRESCENTIPI
446-505
446-517
NGK-DXF
LPK-DXF
Regulator NG
Regulator LP
Y
Y
Additional service part numbers appear on following page.
Heat & Glo • CFX-CRESCENT • 705-900 Rev. P • 12/07
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5
CFX-Crescent
Beginning Manufacturing Date: June 2000
Ending Manufacturing Date: ______
Service Parts
Valve Assembly Diagram/Parts List
Î
Pre 002182991 Valve Assembly
Post 002182991 Valve Assembly
1
3
4
4
3
2
2
6
5
5
IMPORTANT THIS IS DATED INFORMATION: When Requesting service or replacement
parts for your appliance please provide model number and serial number. All parts listed
in this manual may be ordered from an authorized dealer.
Stocked
at Depot
PART NUMBER
ITEM
DESCRIPTION
Pre 002182991
Post 002182991
385-510A
385-511A
570-302A
593-500
Pilot Assembly NG
Pilot Assembly LP
Burner Tube
N/A
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
1
2
3
N/A
570-302A
476-500
476-500
492-320A
501-592
N/A
Valve NG
Valve LP
593-501
4
5
6
Flex Ball Valve Assembly
Module
492-320A
593-592
Module Wire Assembly
Ignitor
593-590A
N/A
501-591
N/A
3 Volt Transformer
593-593A
6
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Approval Listings Appliance Certification
The Heat & Glo fireplace models discussed in this
Installers Guide have been tested to certification
and Codes
standards and listed by the applicable laboratories.
CERTIFICATION
MODEL
LABORATORY
TYPE
STANDARD
1
CFX-Crescent Underwriters
Laboratories
Direct Vent
Gas Fireplace
ANSIZ21.50-2000•CSA2.22-M98
Approvals
and Codes
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
CSA C22.1 Canadian Electric Code (in Canada).
This model may be installed in a bedroom or bed-sitting room in the U.S.A. and
Canada.
High Altitude Installations
U.L. Listed gas appliances are tested and approved without requiring changes for
elevations from 0 to 2,000 feet in the U. S. A. and in Canada.
When installing this appliance at an elevation above 2,000 feet, it may be necessary
to decrease the input rating by changing the existing burner orifice to a smaller
size. Input rate should be reduced by 4% for each 1000 feet above a 2000 foot
elevation in the U.S.A. or 10% for elevations between 2000 and 4500 feet in Canada.
If the heating value of the gas has been reduced, these rules do not apply. To
identify the proper orifice size, check with the local gas utility.
If installing this appliance at an elevation above 4,500 feet (in Canada), check with
local authorities.
Heat & Glo Quality Systems
registered by SGS ICS
7
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Inspection
NOTE: The following requirements reference various
Massachusetts and national codes not contained in
this document.
The state or local gas inspector of the side wall horizontally
vented gas fueled equipment shall not approve the installa-
tion 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.
Requirements for the Commonwealth of
Massachusetts
Exemptions
The following equipment is exempt from 248 CMR 5.08(2)(a)1
through 4:
For all side wall horizontally vented gas fueled equipment
installed in every dwelling, building or structure used in whole
or in part for residential purposes, including those owned or
operated by the Commonwealth and where the side wall
exhaust vent termination is less than seven (7) feet above
finished grade in the area of the venting, including but not
limited to decks and porches, the following requirements
shall be satisfied:
•
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
•
Product Approved side wall horizontally vented gas fu-
eled equipment installed in a room or structure separate
from the dwelling, building or structure used in whole or
in part for residential purposes.
Installation of Carbon Monoxide Detectors
At the time of installation of the side wall horizontal vented
gas fueled equipment, the installing plumber or gasfitter shall
observe that a hard wired carbon monoxide detector with an
alarm and battery back-up is installed on the floor level where
the gas equipment is to be installed. In addition, the install-
ing plumber or gasfitter shall observe that a battery operat-
ed 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 fu-
eled equipment. It shall be the responsibility of the property
owner to secure the services of qualified licensed profes-
sionals for the installation of hard wired carbon monoxide
detectors.
MANUFACTURER REQUIREMENTS
Gas Equipment Venting System Provided
When the manufacturer of ProductApproved side wall hor-
izontally vented gas equipment provides a venting system
design or venting system components with the equipment,
the instructions provided by the manufacturer for installa-
tion of the equipment and the venting system shall include:
•
Detailed instructions for the installation of the venting
system design or the venting system components; and
•
A complete parts list for the venting system design or
venting system.
In the event that the side wall horizontally vented gas fueled
equipment is installed in a crawl space or an attic, the hard
wired carbon monoxide detector with alarm and battery back-
up may be installed on the next adjacent floor level.
In the event that the requirements of this subdivision can
not be met at the time of completion of installation, the
owner shall have a period of thirty (30) days to comply with
the above requirements; provided, however, that during said
thirty (30) day period, a battery operated carbon monoxide
detector with an alarm shall be installed.
Gas Equipment Venting System NOT Provided
When the manufacturer of a Product Approved side wall
horizontally vented gas fueled equipment does not provide
the parts for venting the flue gases, but identifies “special
venting systems”, the following requirements shall be sat-
isfied by the manufacturer:
•
The referenced “special venting system” instructions shall
be included with the appliance or equipment installation
instructions; and
Approved Carbon Monoxide Detectors
Each carbon monoxide detector as required in accordance
with the above provisions shall comply with NFPA 720 and
be ANSI/UL 2034 listed and IAS certified.
•
The “special venting systems” shall be ProductApproved
by the Board, and the instructions for that system shall
include a parts list and detailed installation instructions.
Signage
A copy of all installation instructions for all Product Ap-
proved side wall horizontally vented gas fueled equipment,
all venting instructions, all parts lists for venting instruc-
tions, and/or all venting design instructions shall remain
with the appliance or equipment at the completion of the
installation.
A metal or plastic identification plate shall be permanently
mounted to the exterior of the building at a minimum height
of eight (8) feet above grade directly in line with the exhaust
vent terminal for the horizontally vented gas fueled heating
appliance or equipment. The sign shall read, in print size no
less than one-half (1/2) inch in size, “GAS VENT DIRECT-
LY BELOW. KEEP CLEAR OF ALL OBSTRUCTIONS”.
See Gas Connection section for additional Common-
wealth of Massachusetts requirements.
8
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Introducing the
Heat & Glo
Gas Fireplaces
Heat & Glo direct vent gas fireplaces are designed to
operate with all combustion air siphoned from
outside of the building and all exhaust gases
expelled to the outside.
The information contained in this Installers Guide,
unless noted otherwise, applies to all models and
gas control systems.
2
Gas fireplace diagrams, including the dimensions,
are shown in this section.
Getting
Started
Pre-installation
Preparation
This gas fireplace and its components are tested
and safe 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 and trim doors are
shipped in separate packages. The gas logs are
packaged separately and must be field installed.
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.
This model MUST use SL-Series Direct Vent
Components and Termination Kits (as indicated in this
guide) for exhausting flue gases AND modelAK-CFX
Air Kit for combustion air. NOTE: 4-inch insulated
ducting is required. See venting section for details.
The Heat & Glo Warranty will be voided by, and Heat
& Glo disclaims any responsibility for, the following
actions:
• Installation of any damaged fireplace or vent
system component.
• Modification of the fireplace or direct vent system.
• Installation other than as instructed by Heat & Glo.
• Improper positioning of the gas logs or the glass
door.
• Installation and/or use of any component part not
manufactured and approved by Heat & 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.
Heat & Glo • CFX-CRESCENT • 705-900 Rev. P • 12/07
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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. Refer to Finishing Variations addendum included
in manual bag.
• Whether optional accessories, such as a remote control, arch surround or door
front 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.
25 3/8 (645mm)
12 3/4 (323mm)
9 1/2 (241mm)
19 1/8 (487mm)
12 5/8 (319mm)
3 (76mm)
Ø
6 5/8 (168mm)
Ø
12 7/8 (326mm)
GAS LINE
ACCESS
8 1/2 (216mm)
ELECTRICAL
ACCESS
46 3/4
(1187mm)
43 1/8 (2)
(1096mm)
38 1/4
(972mm)
38 1/2
(978mm)
2 3/8
(61mm)
2 3/4
(68mm)
2 3/8 (62mm)
6 (153mm)
5 1/2
(138mm)
1 1/8
(29mm)
34 1/2 (876mm)
9 3/4 (248mm)
9 (231mm)
TOP VENT
COLLARS
CONTROL
VALVE
ELECTRICAL
ACCESS
AK-CFX
STARTING
COLLAR
Figure 1. Diagram of the CFX-CRESCENT
10
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The diagram below shows space and clearance
requirements for locating a fireplace within a room.
Step 1
Locating the
fireplace
C
3
A
B
Installing the
Fireplace
E
I INCH
D
A
B
C
D
E
66 5/8 33 1/4
47 1/8 19 5/8 35 1/2
NOTE: Dimensions shown in inches.
Figure 2. Fireplace Dimensions, Locations, and
Space Requirements
Clearance Requirements
The top, back, and sides of the fireplace are defined
by stand-offs.
Minimum Clearances from the Fireplace to
Combustible Materials
Glass
Front
Rear
Sides of
Top of
Fireplace*
Floor of Fireplace Fireplace
Ceiling*
36 inches
(914mm)
0
1/2 inch
(13mm)
1/2 inch 14 1/2 inches** 18 inches
(13mm) (368mm) (457mm)
* NOTE: Add 1 3/8” to these measurements if measuring from the top of the door.
** NOTE: 2 x 4 framing only allowed at 43 5/8” (see Figures 3 and 26).
The minimum clearance to a perpendicular wall extend-
ing past the face of the fireplace is one inch (25mm).
The back of the fireplace may be recessed 19 1/4
inches (489mm) into combustible construction.
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.
Heat & Glo • CFX-CRESCENT • 705-900 Rev. P • 12/07
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Minimum Clearances from the Vent Pipe to
Combustible Materials
For Vertical
Sections
For Horizontal Sections
At Wall Firestops
Top
Bottom
Sides
Top
Bottom
Sides
3 inches 1 inch
(75 mm) (25 mm) (25 mm)
1 inch
1 inch
(25 mm)
2-1/2 inches 1/2 inch
(63.7 mm) (13 mm) (25 mm)
1 inch
For minimum clearances, see the direct vent
termination clearance diagrams on pages 21 and
22 in this section.
Step 2
Framing the
Fireplace
Fireplace framing can be built before or after the
fireplace is set in place. Framing should be
positioned to accommodate wall coverings and
fireplace facing material. The diagram below shows
framing reference dimensions.
MEASURE FIREPLACE DIMENSIONS AND
VERIFY FRAMING METHODS AND WALL
COVERING DETAILS BEFORE FRAMING
CONSTRUCTION BEGINS.
CAUTION
Framing should be
constructed of 2 X 4
lumber or heavier.
46 3/4 (REF)
B
A
D
C
Shows center of
10” x 10” vent
framing holes
for top venting.
A
B
C
D
35 1/2”
(902mm) (1108mm)
43 5/8”
19 5/8”
(498mm) (1213mm)
47 3/4”
Figure 3. Framing Dimensions
12
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A. Vent System Approvals
Step 3
This model is approved to use SL-series direct vent pipe com-
ponents and terminations (as indicated in this guide), and mod-
el AK-CFX air kits. Approved vent system components are la-
beled for identification. This pipe is tested and listed as an ap-
proved component of the fireplace. The pipe is tested to be run
inside an enclosed wall. There is NO requirement for inspection
openings at each joint within the wall. There is no required pitch
for horizontal vent runs. This model is not approved for use
with SLK-01D termination cap. NO OTHER VENTING SYS-
TEMS OR COMPONENTS MAY BE USED.
Installing the
Vent System
Detailed installation instructions are included with each vent termina-
tionkit and should be used in conjunction with this Installers Guide.
Drawing below shows vent system components and terminations.
Vent System Components
VERTICAL
TERMINATION
STORM COLLAR
ROOF FLASHING
HORIZONTAL
TERMINATION
HORIZONTAL PIPE
SUPPORT
PIPE LENGTH
WALL FIRESTOP
Vent System
Termination Kits
CEILING
FIRESTOP
90 DEGREE
ELBOW
WALL BRACKET
COMBUSTION
AIR DUCT COLLAR
SLK-01TRD
SLK-991DA
NOTE: SLK-01D is NOT
approved for use.
Figure 4. Vent Components and Terminations
Identifying Vent Components
The vent systems installed on this gas fireplace may include up to eight 90° elbow
assemblies. The relationships of vertical rise to horizontal run in vent configurations
using 90° elbows MUST BE strictly adhered to. The rise to run relationships are shown
in the venting drawings and tables. Refer to the diagrams on the next several pages.
NOTE: TWO 45° ELBOWS MAY BE USED IN PLACE OF ONE 90° ELBOW.
RISE TO RUN RATIOS IN THE VENT SYSTEM MUST BE FOLLOWED IF 45°
ELBOWS ARE USED.
WARNING: THIS UNIT IS DESIGNED TO OPERATE USING OUTSIDE COM-
!
BUSTION AIR. IT IS MANDATORY TO INSTALLAN AK-CFXAIR KIT USING
4-INCH INSULATED DUCTING. THE 4-INCH (102MM) DUCT COLLAR FOR
THE AIR KIT WILL COME MOUNTED TO THE FIREPLACE. SEE FIGURE 6.
NOTE: When installing the AK-CFX outside air kit, it is normally not necessary
to install the air intake cap on the same wall as the exhaust termination cap.
However, installations involving tall buildings or areas subjected to frequent high
winds, it is recommended that the air intake cap be installed on the same wall
as the exhaust termination cap.
Heat & Glo • CFX-CRESCENT • 705-900 Rev. P • 12/07
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6 1/2
6 3/8
9 1/4
6 1/2
9 5/8
6 3/8
6 5/8
SL-45D
6 5/8
9 5/8
SL-90D
17-24
6 1/2
11 3/4
5 3/4
6 5/8
SL-17/24D
(SL17-24D)
SL-12D
SL-06D
47 3/4
35 3/4
23 3/4
12-17
8 3/4
SL-09D
SL-12/17D (SL12-17D)
SL-24D
SL-48D
SL-36D
Note: Pipes overlap 1 3/8 inches (34.93mm) at each joint.
Figure 5. SL-Series Direct Vent Component Specifications
(4-inch inner pipe/6 5/8-inch outer pipe)
14
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COMBUSTION
DUCT COLLAR
FOR
AK-CFX AIR KIT
Figure 6. Unit with duct collar.
The combustion air duct on the right side of the unit can run
horizontally or elbow upward 46 feet long. This duct can
elbow down to a maximum of 18 feet.
CAP
STRAIGHT UP
VERTICAL VENTING
V (FT.)
46' MAX. (14M)
V
Figure 7. Straight Up Vertical Venting
Heat & Glo • CFX-CRESCENT • 705-900 Rev. P • 12/07
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Total H (Horizontal run) = 50 feet maximum.
Total V (Vertical run) = 46 feet maximum.
Any combination in between would be applicable.
COMBUSTION
AIR DUCT
40 FT
MAXIMUM
COMBUSTION
AIR DUCT
18 FT
MAXIMUM
40 FT
MAXIMUM
Figure 8. Venting with eight (8) 90° Elbows
Unit could have up to eight elbows off the top, with a maximum of 50 feet hori-
zontal before any vertical, however, a vertical run of 46 feet maximum could be
introduced at any point of the horizontal run and even right off the top of the unit.
16
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B. Installing Vent Components
1. Attach the First Vent Component to the
Starting Collars
To attach the first vent component to the starting
collars of the fireplace:
• Apply a 3/8 inch (9.5 mm) bead of stove cement
around the 4 inch (102 mm) fireplace starting collar.
• Slide the first vent section onto the collars attached
to the top of the unit. Use four self tapping screws to
secure the outer pipe to the outer collar.
• Apply a 3/8 inch (9.5mm) bead of stove cement
around the 6 5/6 inch (168mm) outer collar.
1. Apply the stove
cement.
STARTING
COLLAR
2. Line up the internal
beads and slide pipe
on. Note: Outer pipe
slides into outer (cone
shaped) collar 1/2 inch.
3/8” (9.5mm)
3. Fasten with four
screws.
STOVE
SEALANT
BEAD
4. Apply the stove
cement to outer collar
joint.
FIRST VENT
COMPONENT
1 INCH
(25.4mm)
Figure 9. Attaching the First Vent Component to
the Starting Collars
WARNING: A 3/8 INCH (9.5 MM) BEAD
OF STOVE CEMENT MUST BE
!
PLACED AROUND THE 4 INCH (102
MM) FIREPLACE STARTING COLLAR
BEFORE ATTACHING THE FIRST VENT
COMPONENT. FAILURE TO SEAL THIS
JOINT MAY CAUSE THE FIREPLACE
TO OPERATE IMPROPERLY. SEE THE
DIAGRAM .
Heat & Glo • CFX-CRESCENT • 705-900 Rev. P • 12/07
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2. Continue Adding Vent Components
To continue adding vent components in accordance
with the pre-planned vent system configuration:
• Ensure that each succeeding vent component is
securely fitted and locked into the preceding com-
ponent in the vent system.
90° elbows may be installed and rotated to any point
around the preceding component’s vertical axis. If an
elbow does not end up in a locked position with the
preceding component, attach with a minimum of two
(2) sheet metal screws.
Continue adding vent
components, locking
each succeeding
component into place.
Figure 10. Adding Venting Components
3. Install Support Brackets
For Horizontal Runs - The vent system must be
supported every five (5) feet of horizontal run by a
horizontal pipe support.
To install support brackets for horizontal runs:
• Place the pipe supports around the vent pipe.
• Nail the pipe supports to the framing members.
18
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For Vertical Runs - The vent system must be
supported every eight (8) feet (2.4 m) above the
fireplace flue outlet by wall brackets.
To install support brackets for vertical runs:
• Attach wall brackets to the vent pipe and secure
the wall bracket to the framing members with
nails or screws.
Use wall brackets to
support vertical runs
every 8 feet (2.4 m)
above the fireplace flue
outlet.
WALL BRACKET
WALL STUD
8 FT.
(2.3m)
FLUE
OUTLET
1 INCH MIN.
(25.4m)
Figure 11. Installing Support Brackets
4. Install Firestops
For Horizontal Runs - Firestops are REQUIRED
on both sides of a combustible wall through which
the vent passes. The exterior firestop is not required
at the termination cap for model CFX-Crescent. (SLK-
01TRD is required for horizontal terminations).
To install firestops for horizontal runs that pass
through either interior or exterior walls:
• Cut a 10-inch by 10-inch (254 mm X 254 mm)
hole through the wall. The center of the hole is
one (1) inch (25.4 mm) above the center of the
horizontal vent pipe.
Heat & Glo • CFX-CRESCENT • 705-900 Rev. P • 12/07
19
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• Position the firestops on both sides of the hole
previously cut and secure the firestops with nails
or screws.
• The heat shields of the firestops MUST BE
placed towards the top of the hole.
• Continue the vent run through the firestops.
NOTE: There must be NO insulation or other
combustibles inside the framed firestop opening.
10"
(254mm)
1. Cut the 10-inch by
10-inch hole.
1" (25.4 mm)
10"
(254mm)
VENT PIPE
Figure 12.
10" x 10" Hole and Vent Pipe
HEAT SHIELD
2. Position the firestops.
TRIM HEAT
SHIELD IF TOO
LONG, ADD TO
SHIELD IF TOO
SHORT
3. Place the heat shield
to the top.
4. Continue the vent run.
INTERIOR
FIRESTOP
NOTE:
Exterior firestop not shown.
Horizontal termination only
approved for SLK-01TRD
trapezoidal cap.
Figure 13.Heat Shield, Interior and Exterior
Firestops
For Vertical Runs - One ceiling firestop is
REQUIRED at the hole in each ceiling through
which the vent passes.
To install firestops for vertical runs that pass through
ceilings:
• Position a plumb bob directly over the center of
the vertical vent component.
• Mark the ceiling to establish the centerpoint of the
vent.
20
Heat & Glo • CFX-CRESCENT • 705-900 Rev. P • 12/07
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• Drill a hole or drive a nail through this centerpoint.
• Check the floor above for any obstructions, such
as wiring or plumbing runs.
• Reposition the fireplace and vent system, if
necessary, to accommodate the ceiling joists
and/or obstructions.
• Cut a 9-inch x 9-inch (229mm x 229mm) hole
through the ceiling, using the centerpoint previ-
ously marked.
• Frame the hole with framing lumber the same
size as the ceiling joists.
9" (229 mm)
9" (229 mm)
1. Cut the 9-inch by
9-inch hole.
2. Add the new framing
members.
CHIMNEY
HOLE
EXISTING CEILING
JOISTS
NEW
FRAMING
MEMBERS
CEILING
Figure 14 . 9”x 9” Hole & New Framing Members
If the area above the ceiling is NOT an attic, posi-
tion and secure the ceiling firestop on the ceiling
side of the previously cut and framed hole.
This shows a ceiling
installation.
JOIST
CEILING
NAILS (4 REQUIRED)
CEILING FIRESTOP
Figure 15. Ceiling Firestop (Ceiling Side)
Heat & Glo • CFX-CRESCENT • 705-900 Rev. P • 12/07
21
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If the area above the ceiling IS an attic, position and
secure the firestop on top of the previously framed hole.
NOTE: There must be NO insulation or other
combustibles inside the framed firestop opening.
NAILS (4 REQUIRED)
This shows an attic
installation.
1. Keep insulation away
from the vent pipe at
least 1 inch (25 mm).
RAFTER
CEILING
CEILING FIRESTOP
Figure 16.Attic Firestop
C. Vent Termination
For Horizontal Terminations - The trapezoidal cap
SLK-01TRD is the only cap that is approved to
terminate a horizontal vent run.
To attach and secure the termination to the last
section of horizontal vent:
• Rotate and interlock the ends as described at the
beginning of the Installing Vent Components
section.
• The termination kit should pass through the wall
firestops from the exterior of the building.
• Adjust the termination cap to its final exterior
position on the building (see Figure 17).
22
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HEAT
SHIELD
For trapezoidal termination:
1. Screw the cap to the
exterior wall through
the flanges in the cap.
2. Seal the joint between
the pipe and the
exterior firestop.
6-3/4”
(171mm)
Note: You must install the heat
shield while installing the top two
screws in the firestop.
Figure 17. Trapezoid Termination Cap
NOTE: For vinyl siding use protector kit VPK-Infinity.
WARNING: VENTING TERMINALS SHALL
NOT BE RECESSED INTOAWALL OR SID-
ING. VENT TERMINATION CLEARANCES
MUST BE FOLLOWED TO AVOID FIRE DANGER.
SEE VENT TERMINATION MINIMUM CLEARANC-
ES DIAGRAM ON FOLLOWING PAGE.
!
Heat & Glo • CFX-CRESCENT • 705-900 Rev. P • 12/07
23
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M
N
P
G
R
v
A
H
D
Q
(See Note 2)
v
V
B
L
U.S.
(3 FT)
B
T
v
v
v
B
v
S
S
Electrical
Service
V
V
F
v
M
I
D*
V
v
X
A
J or K
X
= VENT TERMINAL
=AIR SUPPLY INLET
= AREA WHERE TERMINAL IS NOT PERMITTED
V
A
B
= 12" ....................... clearances above grade, veran-
6 ft. (Canada) ......... clearance to a mechanical air
supply inlet
L** = 7 ft. ......................... clearance above paved side-
walk or a paved driveway locat-
(See Note 1)
da, porch, deck or balcony
= 12" ....................... clearances to window or door
that may be opened, or to per-
(See Note 1)
ed on public property
manently closed window.
M*** = 18" ......................... clearance under veranda,
D*
= 18" ....................... vertical clearance to unventilat-
ed soffit or to ventilated soffit lo-
porch, deck, balcony or over-
hang
cated above the terminal
42” ......................... vinyl
*48” min. .............. for vinyl clad soffits and below
electrical service
N
P
= 6” ........................... non-vinyl sidewalls
12” ......................... vinyl sidewalls
F
=
9" ........................ clearance to outside corner
= 8 ft.
G
H
= 6" ......................... clearance to inside corner
= 3 ft. (Canada) ...... not to be installed above a gas
meter/regulator assembly within
______________________________Q___M_I_N___________________________________
_____1___c__a_p__________________3___f_e_e__t_________________2__x__Q____A_C_T_U_A_L____
______2__c__a_p__s________________6___f_e_e__t_________________1__x__Q____A_C_T_U_A_L____
______3__c__a_p__s_________________9__f_e_e__t_______________2_/_3__x___Q___A_C_T_U_A__L___
4 caps 12 feet 1/2 x Q ACTUAL
RMAX
3 feet (90cm) horizontally from the
center-line of the regulator
I
= 3 ft. ....................... clearance to gas service regu-
lator vent outlet
= 9" (U.S.A.)
J
QMIN = # termination caps x 3
RMAX = (2 / # termination caps) x QACTUAL
12" (Canada) ........ clearance to non-mechanical air
supply inlet to building or the
combustion air inlet to any other
appliance
S = 6" MIN................... clearance from sides of elec-
(See Note 5)
trical service
T
= 12" MIN. ................ clearance above electrical
K
= 3 ft. (U.S.A.)
(See Note 5)
service
NOTE 3: Local codes or regulations may require different
clearances.
** a vent shall not terminate directly above a sidewalk or paved
driveway which is located between two single family dwellings
and serves both dwellings.
NOTE 4: Termination caps may be hot. Consider their proximity to
doors or other traffic areas.
*** only permitted if veranda, porch, deck or balcony is fully open on
a minimum of 2 sides beneath the floor or meets Note 2.
NOTE 5: Location of the vent termination must not interfere with
access to the electrical service.
NOTE 1: On private property where termination is less than 7 feet
above a sidewalk, driveway, deck, porch, veranda or balcony, use of
a listed cap shield is suggested.
WARNING: In the U.S: Vent system termination is NOT permitted
in screened porches. You must follow side wall, overhang and
ground clearances as stated in the instructions.
NOTE 2: Termination in an alcove space (spaces open only on one side
and with an overhang) are permitted with the dimensions specified for
vinyl or non-vinyl siding and soffits. 1. There must be 3 feet minimum
between termination caps. 2. All mechanical air intakes within 10 feet
of a termination cap must be a minimum of 3 feet below the termination
cap. 3. All gravity air intakes within 3 feet of a termination cap must be
a minimum of 1 foot below the termination cap.
In Canada: Vent system termination is NOT permitted in screened
porches. Vent system termination is permitted in porch areas
with two or more sides open. You must follow all side walls,
overhang and ground clearances as stated in the instructions.
Heat & Glo assumes no responsibility for the improper perfor-
mance of the fireplace when the venting system does not meet
these requirements.
Figure 18. Vent Termination Minimum Clearances
CAUTION: IF EXTERIOR WALLS ARE FINISHED WITH VINYL SIDING, IT IS SUGGESTED THAT A VINYL PROTECTOR KIT BE
INSTALLED.
24
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For Vertical Terminations - To locate the vent and
install the vent sections:
• Locate and mark the vent centerpoint on the
underside of the roof, and drive a nail through the
centerpoint.
• Make the outline of the roof hole around the
centerpoint nail.
• The size of the roof hole framing dimensions
depend on the pitch of the roof. There MUST BE
a 1-inch (25.4 mm) clearance from the vertical
vent pipe to combustible materials.
• Mark the roof hole accordingly.
• Cover the opening of the installed vent pipes.
• Cut and frame the roof hole.
• Use framing lumber the same size as the roof
rafters and install the frame securely. Flashing an-
chored to the frame must withstand heavy winds.
• Continue to install concentric vent sections up
through the roof hole (for inside vent installations)
or up past the roof line until you reach the appro-
priate distance above the roof (for outside termi-
nations).
WARNING
MAJOR U.S. BUILDING CODES
!
SPECIFY MINIMUM CHIMNEY AND/OR
VENT HEIGHT ABOVE THE ROOF TOP.
THESE MINIMUM HEIGHTS ARE
NECESSARY IN THE INTEREST OF
SAFETY. SEE THE FOLLOWING
DIAGRAM FOR MINIMUM HEIGHTS,
PROVIDED THE TERMINATION CAP IS
AT LEAST TWO (2) FEET FROM A
VERTICAL WALLAND 2-FEET BELOW A
HORIZONTAL OVERHANG.
This also pertains to vertical vent systems installed
on the outside of the building.
NOTE:
Heat & Glo • CFX-CRESCENT • 705-900 Rev. P • 12/07
25
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To seal the roof hole, and to divert rain and snow
from the vent system:
• Attach a flashing to the roof using nails, and use
a non-hardening mastic around the edges of the
flashing base where it meets the roof.
• Attach a storm collar over the flashing joint to
form a water-tight seal. Place non-hardening
mastic around the joint, between the storm collar
and the vertical pipe.
• Slide the termination cap over the end of the vent
pipe and rotate the pipe clockwise 1/4 turn.
HORIZONTAL
OVERHANG
1. Attach the flashing
and apply sealant
around the edges of
the flashing base.
2 FT.
MIN.
2 FT. MIN.
VERTICAL
WALL
LOWEST
DISCHARGE
OPENING
TERMINATION
CAP
2. Attach the storm
collar over the flash-
ing joint and apply
sealant between the
storm collar and
vertical pipe.
X
12
ROOF PITCH
IS X/ 12
H (MIN.) - MINIMUM HEIGHT FROM ROOF
TO LOWEST DISCHARGE OPENING
Roof Pitch
H (min.) ft.
flat to 6/12
1.0
1.25
1.5
2.0
2.5
over 6/12 to 7/12
over 7/12 to 8/12
over 8/12 to 9/12
over 9/12 to 10/12
over 10/12 to 11/12
over 11/12 to 12/12
over 12/12 to 14/12
over 14/12 to 16/12
over 16/12 to 18/12
over 18/12 to 20/12
over 20/12 to 21/12
3.25
4.0
5.0
6.0
7.0
7.5
8.0
Figure 19. Minimum Height from Roof to
Lowest Discharge Opening
26
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Step 4
Positioning,
Leveling, and
Securing the
Fireplace
FINISHING
STRIPS
NOTE: Before positioning
fireplace into framing re-
move Finishing Strips that
are secured to right side
of fireplace. The strips will
be used in the finishing
process. Refer to Finish-
ing Variations addendum
included in manual bag.
Figure 20. Remove Finishing Strips
To properly position, level,
and secure the fireplace:
WARNING: To secure proper
clearances the front framing
header must be installed on
its narrow edge and to the
front of the frame.
1. Place the fireplace into
position.
2. Level the fireplace from
side to side and from
front to back.
TOP (4)
FRAMING
TABS
3. Fold out top four framing
tabs to be flush with (2)
bottom tabs as shown
(Figure 21).
4. Secure the fireplace to
the framing by nailing or
screwing to all six fram-
ing tabs.
BOTTOM (2)
FRAMING TABS
Figure 21. Proper Positioning, Leveling, and
Securing of a Fireplace
Step 5
The Gas Control
System
WARNING: THIS UNIT IS NOT FOR USE
WITH SOLID FUEL.
!
Intermittent Pilot Ignition (IPI) System
IGNITOR
The gas control system
used with this model is
Intermittent Pilot Ignition
(IPI). This system in-
cludes a 3V control valve.
electronic module, and
intermittent pilot.
Figure 22. Gas Control System
WARNING: CONTINUOUS 110-120 VAC SER-
VICE MUST BE WIRED DIRECTLY TO THE
!
FIREPLACE JUNCTION BOX .
Heat & Glo • CFX-CRESCENT • 705-900 Rev. P • 12/07
27
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NOTE: Have the gas supply line installed in accordance
with local building codes by a qualified installer ap-
proved and/or licensed as required by the locality. (In
the Commonwealth of Massachusetts installation must
be performed by a licensed plumber or gas fitter).
Step 6
The Gas
Supply Line
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 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 (and Commonwealth of Massachusetts approved)
1/2 inch (13mm) tee-handle manual shut-off valve and a
listed flexible gas connector are connected to the 1/2
inch (13mm) inlet of the control valve. NOTE: If substi-
tuting for these components, please consult local codes
for compliance.
• A 1/8 inch (3 mm) N.P.T. plugged tapping, accessible for
test gauge connection, should be provided for in the gas
supply line leading to the unit’s shut-off valve.
• Remove the decorative door on the unit by pulling away
from the unit to release it from the clips on each side.
• Locate the gas line access hole in the outer casing of the
fireplace.
• 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, all connections must
be tightened and checked for leaks with a commercially-avail-
able, non-corrosive leak check solution. Be sure to rinse off all
leak check solution following testing.
WARNING: DO NOT USE AN OPEN
FLAME TO CHECK FOR GAS LEAKS.
!
• At the gas line
access hole in the
outer casing, use
insulation to re-pack
the space around
the gas pipe.
USE WRENCH
ON SHUT-OFF VALVE
WHEN TIGHTENING
GAS LINE
MANUAL
SHUT-OFF
VALVE
• The gas line should
be installed by a
qualified service
technician.
FLEX
CONNECTOR
GAS
VALVE
ELECTRICAL
ACCESS
Figure 23. Gas Supply Line
28
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Step 7
Gas Pressure
Requirements
Pressure requirements for Heat & Glo gas fireplaces
are shown in the table below.
Pressure
Natural Gas
Propane
Minimum
Inlet Pressure
5.0 inches
w.c.
11.0 inches
w.c.
Maximum Inlet
Gas Pressure
14.0 inches
w.c.
14.0 inches
w.c.
Manifold
Pressure
3.5 inches
w.c.
10.0 inches
w.c.
Aone-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).
Step 8
Wiring the
Fireplace
NOTE: Electrical wiring must be installed by a
licensed electrician.
CAUTION: DISCONNECT REMOTE CONTROLS
IF YOU ARE ABSENT FOR EXTENDED TIME
PERIODS. THIS WILL PREVENT ACCIDENTAL
FIREPLACE OPERATION.
Intermittent Pilot Ignition (IPI) Wiring
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. A wall switch is
also required to operate the unit. See wiring diagram
for details.
WARNING: DO NOT CONNECT 110-120 VAC TO THE
GAS CONTROL VALVE OR THE APPLIANCE WILL
!
MALFUNCTIONAND THE VALVE WILLBE DESTROYED.
Heat & Glo • CFX-CRESCENT • 705-900 Rev. P • 12/07
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Optional Accessories
Optional remote control kits require that 110-120
VAC be wired to the fireplace junction box.
Wall Switch
A wall switch is provided and is required. Position
the wall switch in the desired position on the wall.
The wall switch is 110-120 VAC and requires
appropriate wire be used. A junction box should be
used for the wire connections. See wiring diagram
for details.
At the appliance connect the wire to the ON/OFF
switch pigtails.
LABEL ALL WIRES PRIOR TO DISCONNEC-
TION WHEN SERVICING CONTROLS. WIRING
ERRORS CAN CAUSE IMPROPER AND DAN-
GEROUS OPERATION. VERIFY PROPER OPER-
ATION AFTER SERVICING.
CAUTION
PLUG-IN
3V TRANSFORMER
IGNITION
MODULE 3 VAC
INTERMITTENT
PILOT
LOW VOLTAGE
SEE NOTE 1
FLAME SPARKER/
IGNITION
SENSOR
HIGH
TEMP
SWITCH
FAN
IGNITION
MODULE
(3V)
VALVE
LOW VOLTAGE
SEE NOTE 1
ORG
WHT
GROUND
REMOTE
CONTROL
NEUTRAL
HOT
BLK
GROUND TO
FIREPLACE
CHASSIS
WHT
RELAY
BRN
BRN
BRN
HIGH LIMIT
SWITCH
BRN
REMOVE THESE CONNECTORS
TO WIRE SWITCHES
WHT
OPTIONAL
WALL
SWITCH
YLW
BLK
YLW
BLK
OPTIONAL
REMOTE
CONTROL
YLW
BLK
XFMR
PLUG IN
FAN
REMOVE THESE CONNECTORS
TO WIRE REMOTE
TRANSFORMER
3 VAC
VALVE
JUNCTION BOX
120 VAC
Figure 24. Intermittent Pilot Ignition Wiring Diagram
30
Heat & Glo • CFX-CRESCENT • 705-900 Rev. P • 12/07
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BATTERIES
LEAVE AS
FACTORY WIRED
REAR VIEW
(BLACK)
(RED)
DO NOT
USE
(GREEN)
(ORANGE)
(BLACK)
(RED)
DO NOT
USE
G
Y
R
IPI
VALVE
IPI
MODULE
(BROWN)
(BROWN)
(BROWN)
FRONT VIEW
(BROWN)
(RED)
(BLACK)
FLAME
SOLENOID
3V ADAPTOR PLUG
FLAME HIGH/LOW
DO NOT
USE
(ORANGE)
(ORANGE)
(BLACK)
AC
PLUG
LEAVE PLUGGED
TO JUNCTION BOX
AUX
CONNECTION
(BLACK)
FAN
CONNECTION
GROUND PIGTAIL GREEN
(RED)
(RED)
(YELLOW)
(BLACK)
FLAME ON
Figure 25. Intellifire (WSK-MLT) Wiring Diagram
WSK-MLT
The WSK-MLT kit can be used with the CFX-
Crescent but only with limited function. Follow
wiring diagram (see Figure 25).
Heat & Glo • CFX-CRESCENT • 705-900 Rev. P • 12/07
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The following diagram 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.
Step 9
Finishing
CEILING
18”
12”
11”
10”
9”
8”
2 X 4 FRAMING
12.5”
7”
ALLOWED AT 43 5/8”
6”
11.5”
13.5”
14.5”
5”
4”
9.5”
NON-COMBUSTIBLE
MATERIAL
10.5”
7.5”
3”
6.5”
8.5”
5.5”
4.5”
TOP FRONT EDGE
OF FIREPLACE
53”
38.5”
NOTE: Add 1 3/8” to these
measurements if measuring from
the top of the door.
FLOOR
Figure 26. Min. Vertical and Max. Horizontal
Dimensions of Combustibles above Fireplace
IF JOINTS BETWEEN THE FINISHED WALLS AND THE
FIREPLACE 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 MATE-
RIAL (USING 300° F. MINIMUM ADHESIVE, IF NEED-
ED) CAN BEAPPLIED AS FACING TO THE FIREPLACE
SURROUND. SEE THE DIAGRAM SHOWN BELOW.
CAUTION
Hearth Extensions
A hearth extension
may be desirable for
aesthetic reasons.
However, ANSI or
CAN/CGA testing
standards do not
require hearth
HIGH TEMPERATURE
FINISH WALL MATERIAL
MAY BE COMBUSTIBLE
- TOP AND SIDES
0
(3000F/149 C MIN.)
TOP SEAL JOINT
34 1/2”
1/2”
5 7/8”
extensions for gas
fireplace appliances.
NON-COMBUSTIBLE
AREA
1/2”
0
HIGH TEMP (3000F/149 C MIN.) SIDE SEAL JOINT
Figure 27. Sealant Material
32
Heat & Glo • CFX-CRESCENT • 705-900 Rev. P • 12/07
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Step 10
Glass Door
Removal,
Installing Trim,
Handle, Logs
and Ember
Material
Removing Glass Door
Remove the glass assembly. Using a phillips screw
driver, loosen the top two screws. Unfasten the bottom
retention clips and pull glass assembly out from the
bottom. See Figure 28.
TOP TWO
SCREWS
GLASS
ASSEMBLY
BOTTOM
RETENTION
CLIPS
Figure 28. Glass Door Removal
Installing the Trim
Combustible materials may be brought up to the
specified clearances on the side and the 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. They can
overlap front face up to arch door front.
When overlapping on both sides, leave enough space
so the decorative door is accessible.
CAUTION
NON-COMBUSTIBLE FINISHING MATERIALS
MUST NEVER COVER/OVERLAP ARCHED
DECORATION DOOR.
Heat & Glo • CFX-CRESCENT • 705-900 Rev. P • 12/07
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Positioning the Logs
The logs have been packaged separately, refer to the
installation instructions that accompany 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.
Shutter Settings
NG
LP
___________________________________________
Burner
5/16”
Fully Open
Placing the Ember Material and Lava Rock
Two separate bags of ember material and one bag
of lava rock are 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:
• Remove the trim door by lifting up and away from the
unit or if you have an ARCH door, pull away from the
unit to release it from the clips on each side.
• Remove the glass door from the unit. Refer to
glass removal in Step 10.
• Cover the top of the burner with a single layer of
ember material. NOTE: Do NOT cover burner
ports with embers. Then sprinkle GE-93 on top of
the burner.
• Save the remaining ember materials for use during
fireplace servicing.
• Place lava rock on burner tray.
• Replace the glass door and a front trim door on the
unit.
BURNER
TRAY
LAVA
ROCK
EMBER MATERIAL
Figure 29. Placement of Ember Material
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Before lighting the fireplace, be sure to do the
following:
Step 11
Before Lighting
the Fireplace
• 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.
• Before lighting the fireplace, double-check the unit for
possible obstructions that could be blocking the vent
terminations.
Double-check for faulty components
• Any component that is found to be faulty MUST BE
replaced with an approved component. Tampering with
the fireplace components is DANGEROUS and voids
all warranties.
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 gas
valve has been turned to the OFF position, in which
case the air would have to be purged.
NOTE: The fireplace should be run 3 to 4 hours on the
initial start-up. Turn it off and let it cool completely.
Remove and clean the glass. Replace the glass and run
the fireplace for an additional 8 hours. This will help to
cure the products used in the paint and logs.
During this break-in period it is recommended that some
windows in the house be opened for air circulation. This will
help avoid setting off smoke detectors, and help eliminate
any odors associated with the fireplace’s initial burning.
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.
Step 12
Lighting
the Fireplace
WARNING: PLEASE REFER TO THE USER’S
MANUAL FORALL CAUTIONS, SAFETY, AND
!
WARNING INFORMATION PERTAINING TO THE
LIGHTING AND OPERATION OF THE FIRE-
PLACE.
LEAVE THIS INSTALLATION MANUAL WITH
THE APPLIANCE FOR FUTURE REFERENCE.
After the
Installation
Heat & Glo • CFX-CRESCENT • 705-900 Rev. P • 12/07
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Fireplace
Maintenance
Although the frequency of your fireplace servicing and
maintenance will depend on use and the type of
installation, you should have a qualified service
technician perform an appliance check-up at the
beginning of each heating season. See the table below
for specific guidelines regarding each fireplace
maintenance task.
4
Maintaining
and
TURN OFF THE GAS BEFORE SERVICING
YOUR FIREPLACE.
IMPORTANT
Servicing
Your
Type of
Fireplace
Maintenance
Fireplace Maintenance Task To
Fireplace
Frequency
By
Be Completed
Replacing
Old Ember
Material
Once annually,
during the
Qualified
Service
Technician
Brush away loose ember material near
the burner. Replace old ember
annual check-up
material with new dime-size and -shape
pieces of Golden Ember (GE-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 in the INSTALLERS GUIDE.
Cleaning
Burner
& Controls
Once annually
Periodically
Qualified
Service
Technician
Brush or vacuum the control
compartment, fireplace logs, and
burner areas surrounding the logs.
Cleaning
Flame
Qualified
Service
Make a visual check of the straight flame
sensor rod. Use emery cloth to
Sensor Rod
(IPI System)
Technician/ carefully remove any existing white
Owner
deposits.
Checking
Flame
Periodically
Qualified
Service
Make a visual check of your fireplace’s
flame patterns. Make sure the flames
Patterns,
Flame Height
Technician/ are steady—not lifting or floating. See
Owner
Figure 30.
Checking
Vent System and at least
Before initial use
Qualified
Service
Inspect the external vent cap on a
regular basis to ensure that no debris is
annually thereafter, Technician/ interfering with the flow of air. Inspect
more frequently
if possible
Owner
entire vent system for proper function.
Cleaning
After first 3 to 4 hours Homeowner Remove and clean glass after the first 3
Glass Door
of use. As necessary
after initial cleaning.
to 4 hours of use. After the initial cleaning,
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. Refer
to Step 10 for Glass Removal.
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MAKE SURE THE FLAMES
ARE STEADY—NOT
LIFTING OR FLOATING.
Figure 30. Burner Flame Patterns
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37
Contact Information
Î
Heat & Glo, a brand of Hearth & Home Technologies Inc.
20802 Kensington Boulevard, Lakeville, MN 55044
Please contact your Heat & Glo dealer with any questions or concerns.
For the location of your nearest Heat & Glo dealer,
- NOTES -
_______________________________________________________________________________
_______________________________________________________________________________
_______________________________________________________________________________
_______________________________________________________________________________
_______________________________________________________________________________
_______________________________________________________________________________
_______________________________________________________________________________
_______________________________________________________________________________
_______________________________________________________________________________
CAUTION
DO NOT DISCARD THIS MANUAL
Important operating and
maintenance instruc-
tions included.
Read, understand and
follow these instructions
for safe installation and
operation.
•
•
Leave this manual with
party responsible for use
and operation.
•
This product may be covered by one or more of the following patents: (United States) 4593510, 4686807, 4766876, 4793322, 4811534, 5000162,
5016609, 5076254, 5113843, 5191877, 5218953, 5263471, 5328356, 5341794, 5347983, 5429495, 5452708, 5542407, 5601073, 5613487, 5647340,
5688568, 5762062, 5775408, 5890485, 5931661, 5941237, 5947112, 5996575, 6006743, 6019099, 6048195, 6053165, 6145502, 6170481, 6237588,
6296474, 6374822, 6413079, 6439226, 6484712, 6543698, 6550687, 6601579, 6672860, 6688302B2, 6715724B2, 6729551, 6736133, 6748940,
6748942, 6769426, 6774802, 6796302, 6840261, 6848441, 6863064, 6866205, 6869278, 6875012, 6880275, 6908039, 6919884, D320652, D445174,
D462436; (Canada) 1297749, 2195264, 2225408, 2313972; (Australia) 780250, 780403, 1418504 or other U.S. and foreign patents pending.
Printed in U.S.A. - Copyright 2007
38
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