HUSSONG MANUFACTURING CO., INC.
DANGER
of children and other at-risk individuals.
CALLAWAY 72
Model #CLW-72
Direct Vent Gas Fireplace
INSTALLATION AND
OPERATION MANUAL
English and French installation manuals are available through your
Les manuels d’installation en français et en anglais sont disponibles
WARNING:
FIRE OR EXPLOSION HAZARD
Failure to follow safety warnings exactly
could result in serious injury, death, or
property damage.
local dealer. Visit our website www.kozyheat.com.
chez votre détaillant local. Visitez
ͷ Do not store or use gasoline or other
ammable vapors and liquids in the vicinity
of this or any other appliance.
ͷ WHAT TO DO IF YOU SMELL GAS
www.kozyheat.com
.
This appliance may be installed in
an aftermarket, permanently located,
manufactured home (USA only) or mobile
home, where not prohibited by local codes.
This appliance is only for use with the type
of gas indicated on the rating plate. This
appliance is not convertible for use with other
gases, unless a certied kit is used.
• Do not try to light any appliance.
• Do not touch any electrical switch; do
not use any phone in your building.
• Leave the building immediately.
• Immediately call your gas supplier from
a neighbor’s phone. Follow the gas
supplier’s instructions.
• If you cannot reach your gas supplier,
call the re department.
ͷ Installation and service must be performed
by a qualied installer, service agency or
the gas supplier.
INSTALLER: Leave this manual with the appliance.
CONSUMER: Retain this manual for future reference.
Hussong Mfg. Co., Inc. • CLW-72 Report No: 18-441 • Rev. 1, April 2019
HOT GLASS WILL
CAUSE BURNS
DO NOT TOUCH GLASS
UNTIL COOLED
NEVER ALLOW CHILDREN
TO TOUCH GLASS
A barrier designed to reduce the risk of burns
from the hot viewing glass is provided with this
appliance and shall be installed for the protection
Read this manual before installation or operating this appliance.
Please retain this owner’s manual for future reference.
CONGRATULATIONS!
We welcome you as a new owner of a Kozy Heat gas replace. Kozy Heat products are designed with
superior components and materials, and assembled by trained craftsmen who take pride in their work. To
ensure you receive a quality product, the burner and valve assembly are 100 percent test-red, and the
complete replace is thoroughly inspected before packaging. Our commitment to quality and customer
satisfaction has remained the same for over 40 years. We oer a complete line of gas and wood replaces,
along with stylish accessories to complement any decor. Adding a replace is one of the best ways to
increase the value of your home, and we are proud to oer a network of dealers throughout the country
to help make your experience everything you imagine. We pride ourselves in being dedicated not only to
functionality and reliability, but also customer safety. We oer our continual support and guidance to
help you achieve the maximum benet and enjoyment from your Kozy Heat gas replace.
Jim Hussong
President
Homeowner Reference Information
We recommend you record the following information:
Model Name: ___________________________________________
Serial Number: __________________________________________
Dealership Purchased from: _______________________________
Notes: _____________________________________________________________________________________________________________
____________________________________________________________________________________________________________________
____________________________________________________________________________________________________________________
____________________________________________________________________________________________________________________
____________________________________________________________________________________________________________________
#CLW-72 R.1 April 2019 Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces
Date purchased/installed: _________________________________
Location of fireplace: _____________________________________
Dealer phone: ___________________________________________
Dudley Hussong
Board Chairman
3
TABLE OF CONTENTS
TABLE OF CONTENTS .....................................................................5
1.0 INTRODUCTION ......................................................................7
1.1 Appliance Certication ............................................................................. 7
1.2 California Proposition 65 Warning ........................................................ 7
1.3 Requirements for the Commonwealth of Massachusetts ............ 7
2.0 SPECIFICATIONS ..................................................................... 8
2.1 Heating Specications .............................................................................. 8
2.2 Electrical Specications ............................................................................ 8
2.3 Appliance Dimensions .............................................................................. 9
2.4 Barrier Dimensions ..................................................................................... 10
3.0 FRAMING .................................................................................11
3.1 Appliance Placement Considerations ................................................. 11
3.2 Stand-o Assembly and Installation .................................................... 11
3.3 Nailing Flange Assembly and Installation .......................................... 12
3.4 Clearances to Combustibles ................................................................... 13
3.5 Wall Enclosure Rough Opening ............................................................. 14
3.6 Floor Support and Protection ................................................................. 15
3.7 Recess Construction................................................................................... 15
3.8 Vent Termination Framing ....................................................................... 16
3.9 Outdoor Covered Fireplace Installation ..............................................17
3.10 Heat Distribution Cover Plates ............................................................ 18
3.11 Vented Cavity ............................................................................................. 19
4.0 FACING AND FINISHING ......................................................... 24
4.1 Standard Installation Facing and Finishing Requirements ......... 24
4.2 #CW72-SCK Optional Skim Coat Kit ..................................................... 28
4.3 Masonry Finishing Guidelines for Optional Surrounds ................. 29
4.4 Vented Cavity Facing and Finishing Options .................................... 30
4.5 Barrier Installation ...................................................................................... 32
5.0 GAS LINE CONNECTION .........................................................33
5.1 Gas Conversion (sold separately) .......................................................... 33
5.2 Gas Line Installation ................................................................................... 33
6.0 TERMINATION LOCATIONS .................................................... 34
6.1 Vertical Vent Cap Termination ................................................................ 34
6.2 Minimum Termination Clearances ........................................................35
7.0 VENTING ..................................................................................36
7.1 Approved Vent Systems ............................................................................36
7.2 Venting Requirements .............................................................................. 36
7.3 Use of Elbows ............................................................................................... 36
7.4 Vent Restriction .......................................................................................... 36
7.5 Natural Draft Vent Installation ................................................................37
8.0 FIREPLACE SETUP ................................................................... 41
8.1 Glass Frame Assembly ............................................................................... 41
8.2 Burner/Perimeter Media Installation ................................................... 41
8.3 Control Board Removal and Installation ............................................. 42
9.0 ELECTRICAL INFORMATION ..................................................43
9.1 Electrical Specications ............................................................................ 43
9.2 Wiring Requirements ................................................................................. 43
9.3 Light Kit .......................................................................................................... 44
9.4 #SL42-028 Optional Fan Kit ..................................................................... 45
10.0 OPERATING INSTRUCTIONS ................................................ 46
10.1 Setup Proame 2 IFC Module .............................................................. 47
10.2 Initialize the Control System................................................................. 47
10.3 Reset the System for Manual Operation .......................................... 47
10.4 Automatic Safety Restart ....................................................................... 47
10.5 Backup Battery Operation .................................................................... 47
10.6 IFC Module Ignition Sequence ............................................................ 48
10.7 Additional Diagnostic Information .................................................... 48
10.8 Remote Control Operation .................................................................. 49
11.0 ADJUSTMENT ........................................................................ 52
11.1 Pressure Testing ........................................................................................ 52
11.2 Burner Flame Adjustments ................................................................... 53
12.0 TROUBLESHOOTING.............................................................55
13.0 MAINTENANCE......................................................................57
13.1 Firebox .......................................................................................................... 57
13.2 Fan (optional) ............................................................................................. 57
13.3 Vent System ................................................................................................ 57
13.4 Glass Assembly .......................................................................................... 57
13.5 Burner and Pilot System ........................................................................ 58
14.0 REPLACEMENT PARTS LIST..................................................59
LIMITED LIFETIME WARRANTY ....................................................60
#CLW-72 R.1 April 2019 Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces TABLE OF CONTENTS 5
1.0 INTRODUCTION
1.1 Appliance Certication
Laboratory: PFS in Cottage Grove, Wisconsin
Standards:
ANSI Z21.88-2017/CSA 2.33-2017, Vented Gas Fireplace Heaters
CSA 2.17 2017, Gas-Fired Appliances for Use at High Altitudes
This installation must conform with local codes, or in the absence of
local codes, with the National Fuel Gas Code, ANSI Z223.1/NFPA 54, or
the Natural Gas and Propane Installation Code, CSA B149.1.
1.2 California Proposition 65 Warning
WARNING: This product can expose you to chemicals including
Carbon Monoxide, that is an externally vented by-product of fuel
combustion, which is [are] known to the State of California to
cause cancer, birth defects or other reproductive harm. For more
information, visit www.P65Warnings.ca.gov.
1.3 Requirements for the Commonwealth of Massachusetts
The following requirements reference various Massachusetts and
national codes not contained in this manual.
For all sidewall 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 (7) feet above nished grade in the area of the venting,
including but not limited to decks and porches, the following
requirements shall be satised:
1.3.1 Installation of Carbon Monoxide Detectors
At time of installation of side wall horizontally vented gas fueled
equipment, the installing plumber or gas-tter shall observe that
a hard wired carbon monoxide detector with an alarm and battery
back-up is installed on the oor level where the gas equipment is
to be installed. In addition, the installing plumber or gas-tter shall
observe that a battery operated or hard wired carbon monoxide
detector is installed on each additional level of the dwelling, building
or structure served by the side wall horizontal vented gas fueled
equipment. It shall be the responsibility of the property owner
to secure the services of qualied licensed professionals for the
installation of hard wired carbon monoxide detectors.
In the event that the side wall horizontally vented gas fueled
equipment is installed in a crawl space or attic, the hard wired carbon
monoxide detector with alarm and battery back-up may be installed
on the next adjacent oor 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.
1.3.2 Approved Carbon Monoxide Detectors
Each carbon monoxide detector as required in accordance with the
above provisions shall comply with NFPA 720 and be ANSI/UL 2034
listed and IAS certied.
1.3.3 Signage
A metal or plastic identication plate shall be permanently mounted
to the exterior of the building at a minimum 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 no less the one-half inch (½) in size, “GAS VENT
DIRECTLY BELOW. KEEP CLEAR OF ALL OBSTRUCTIONS”.
1.3.4 Inspection
The state or local gas inspector of the side wall horizontally vented
gas fueled equipment shall not approve the installation unless, upon
inspection, the inspector observes carbon monoxide detectors and
signage installed in accordance with the provisions of 248 CMR 5.08
(2) (a) 1 through 4.
1.3.5 Exemptions
The following equipment is exempt from 248 CMR 5.08 (2) (a) 1
through 4: 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 fueled equipment installed in a room or structure separate
from the dwelling, building or structure used in whole or in part for
residential purposes.
1.3.6 Manufacturer Requirements
1.3.6.1 Gas Equipment Venting System Provided
When the manufacturer of Product Approved side wall horizontally
vented gas equipment provides a venting system design or venting
system components with the equipment, the instructions provided
by the manufacturer for installation 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.
1.3.7 Gas Equipment Venting
System NOT Provided
When the manufacturer of Product Approved side wall horizontally
vented gas equipment does not provide the parts for venting the
ue gases, but identies “special venting systems”, the following
requirements shall be satised by the manufacturer:
• The referenced “special venting systems” instructions shall
be included with the appliance or equipment installation
instructions and;
• The “special venting systems” shall be Product Approved by the
Board, and the instructions for that system shall include a parts
list and detailed installation instructions.
A copy of all installation instructions for all Product Approved
side wall horizontally vented gas fueled equipment, all venting
instructions, all parts lists for venting instructions, and/or all venting
design instructions shall remain with the appliance or equipment at
the completion of the installation.
#CLW-72 R.1 April 2019 Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces INTRODUCTION 7
2.0 SPECIFICATIONS
2.1 Heating Specications
Natural Gas Propane
Maximum
Input Rating
Minimum
Input Rating
Manifold Pressure
(High)
Manifold Pressure
(Low)
Orice Sizes (DMS) (2) #42 (2) #1.45 mm
2.1.1 Altitude Adjustment
This appliance may be installed at higher altitudes. Please refer to
National Fuel Gas Code ANSI Z223.1/NFPA 54, CSA-B149.1 Natural
Gas and Propane Installation Code, local authorities, or codes having
jurisdiction in you area regarding derate guidelines.
2.1.1.1 US Installations
Refer to the American Gas Association guidelines for the gas designed
appliances derating method. For elevations above 2,000 ft (610 m),
input ratings are to be reduced by 4% for each 1,000 ft (305 m) above
sea level.
49,500 Btu/h
(14.51 kW)
25,000 Btu/h
(7.32 kW)
3.8” WC
(0.95 kPa)
1.1” WC
(0.27 kPa)
49,000 Btu/h
(14.36 kW)
24,500 Btu/h
(7.18 kW)
11” WC
(2.74 kPa)
2.9” WC
(0.72 kPa)
2.1.1.2 Canadian Installations
When the appliance is installed at elevations above 4,500 ft (1,372 m),
the certied high altitude rating shall be reduced at the rate of 4% for
each additional 1,000 ft (305 m).
2.2 Electrical Specications
• The junction box in this appliance requires 120VAC, 60Hz, and 6
Amps.
• Verify the household breaker is shut o prior to working on any
electrical lines.
• The AC power supply to this appliance must be hot at all times
and shall not have a switch installed in it.
8 SPECIFICATIONS Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces #CLW-72 R.1 April 2019
2.3 Appliance Dimensions
TOP VIEW
5
⁄”
GAS LINE
ACCESS HOLE
(130mm)
2⁄”
(68mm)
Figure 2.1, CLW-72 Dimensions
⁄”
48
(1234mm)
22”
(588mm)
⁄”
18
(481mm)
86
½”
(2197mm)
FRONT VIEWLEFT SIDE RIGHT SIDE
⁄”
20
(518mm)
40
18
⁄”
(465mm)
75
½”
(1918mm)
(248mm)
81
½”
(2071mm)
¾”
9
¾”
(1035mm)
4
¼”
(108mm)
5
½”
(140mm)
ELECTRICAL
ACCESS
#CLW-72 R.1 April 2019 Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces SPECIFICATIONS 9
2.4 Barrier Dimensions
2.4.1 Standard Safety Barrier
WARNING: A barrier designed to reduce the risk of burns from the hot
viewing glass is provided with this appliance and shall be installed for
the protection of children and other at-risk individuals.
If the barrier becomes damaged, the barrier shall be replaced with
Hussong Mfg.’s barriers for this appliance.
17⁄”
(435mm)
SAFETY BARRIER SCREEN (ONLY)
2.4.2 Optional Surrounds
IMPORTANT: Consider the height of hearth nish material when
building a replace platform. If using a safety screen only, the hearth
may be ush with the nishing edge. If using a surround, the bottom of
the replace surround must be level with nished hearth extension for
proper t of the optional surround.
The optional surrounds below are shown with the safety barrier
(shipped with unit).
For installation instructions, refer to Section 4.5 Barrier Installation on
page 32.
74
⁄”
(1889mm)
CW72-ES
⁄”
21
(537mm)
22
⁄”
(580mm)
78⁄”
(1984mm)
RECTANGLE SURROUND (1 PIECE)
CW72-RS
87”
(2210mm)
GALLERY SURROUND
CW72-GS
⁄”
23
(593mm)
½”
24
(622mm)
¼”
80
(2039mm)
RECTANGLE SURROUND (4 PIECE)
CW72-RS4
81
⁄”
(2062mm)
FORGED SURROUND
CW72-FS
10 SPECIFICATIONS Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces #CLW-72 R.1 April 2019
3.0 FRAMING
3.1 Appliance Placement Considerations
WARNING: Due to high temperatures, the appliance should be located
out of trac and away from furniture and draperies.
• This appliance must be installed on a level surface capable
of supporting the replace and venting. If possible, place the
replace in a position where the vent terminates between two
studs, eliminating the need for any additional framing.
• This replace may be installed in a bedroom.
• Please be aware of the large amount of heat this replace will
produce when determining a location.
3.2 Stand-o Assembly and Installation
NOTE: If installing the Komfort Zone Kit (#KZK-072), please reference
the manual included with kit.
NOTE: If installing a heat transfer kit(s), please reference the manual
included with the kit.
WARNING: The top stand-os brackets provide the required minimum
clearance to the header. The clearance to header must be maintained.
Top stand-o brackets must be formed and attached prior to
positioning replace into framed opening.
1. Remove and save (4) screws securing the stand-o brackets on
top of the replace.
2. Form each stand-o bracket by bending at perforations, as
shown.
3. Align the holes in the formed stand-o brackets with the
holes on top of the replace. Secure with (4) screws previously
removed along with (4) screws provided in the replace
components packet.
4. Remove and save screws securing the back stand-o brackets.
Form the back stand-o heat shields as shown. Secure using
provided screws.
Figure 3.1, Stand-o Assembly and Installation
#CLW-72 R.1 April 2019 Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces FRAMING 11
3.3 Nailing Flange Assembly and Installation
CAUTION: Never permanently remove these assemblies from the
replace—they must be secured regardless of nish material used.
1. Remove (2) nailing anges from the right and left side of the
replace.
2. Align nailing ange with holes on outside corners of replace,
with the stand-o anges on the nailing anges facing away
from the replace
3. Secure the nailing anges to the replace with screws (provided)
through the slots in nailing anges.
4. Bend perforation on nailing ange until parallel with replace
face. Do not bend toward replace face.
5. Position framing stud against the small stand-o (located on
backside of nailing ange). Secure with nails or screws.
• When installed, the nailing anges provide the minimum
2½ in (64 mm) clearance from the sides of the replace to
framing.
STAND-OFF FLANGE
BACK VIEW
NAILING FLANGE INSTALLED
TOP VIEW
NAILING FLANGE
AS SHIPPED
FRONT VIEW
NAILING FLANGE
INSTALLED
FRONT VIEW
FRAMING STUD
1
2
"
Figure 3.2, Nailing Flange Installation
2
(64mm)
Clearance
NAILING FLANGE
STAND-OFF FLANGE
NAILING FLANGE
FRAMING STUD
12 FRAMING Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces #CLW-72 R.1 April 2019
3.4 Clearances to Combustibles
Table 3.1, Minimum Appliance Clearances to Combustible Material
From appliance top stand-o brackets 0 in 0 mm
From appliance left and right stand-o brackets 0 in 0 mm
From appliance back stand-o brackets 0 in 0 mm
From appliance corners 1 in 25 mm
From appliance front 36 in 914 mm
Finishing edge to adjacent sidewall 6 in 152 mm
Fireplace nishing edge to 3/4 in (19 mm) trim 16-1/2 in 419 mm
Mantel 6” (152mm) deep from replace nishing edge 20 in 508 mm
Mantel 6” (152mm) deep from replace enclosure oor 48-1/4 in 1226 mm
Minimum height of replace enclosure 79-1/4 in 2013 mm
TYPICAL HORIZONTAL TERMINATION TYPICAL VERTICAL INSTALLATION
22”
(559mm)
(76mm)
3”
22”
(559mm)
86
½”
(2197mm)
(76mm)
3”
½”
86
(2197mm)
TYPICAL CORNER INSTALLATION
31
¼”
(793mm)
61
⁄”
(1552mm)
86
½”
123
⁄”
(3129mm)
(2197mm)
(25mm)
87
⁄”
(2212mm)
1”
Figure 3.3, Clearance to Combustibles
#CLW-72 R.1 April 2019 Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces FRAMING 13
3.5 Wall Enclosure Rough Opening
WARNING: Provide adequate clearance in front of the replace for
barrier removal, component access, gas line installation, service
access, etc.
NOTE: The construction of the replace wall enclosure must comply
with local building codes and all clearances as outlined in this manual.
NOTE: Cold air transfer area. The replace wall enclosure should be
constructed in a manner to prevent cold air from entering the room
and outside walls should be insulated.
FIRE HAZARD: Do NOT install this appliance directly on carpeting,
vinyl, or any other combustible material other than wood.
• Framing dimensions should allow for wall covering thickness
and replace facing materials. Adjust rough opening size as
necessary to maintain minimum clearance requirements.
• The bottom of the replace must be placed directly on a wood or
non-combustible surface (not linoleum or carpet). If the replace
is to be installed above oor level, a solid, continuous platform
must be constructed below the replace.
• This replace may be elevated o the oor as shown below,
provided it is properly supported by framing materials and
maintains ceiling clearances.
• If masonry is to be used (optional), prepare the necessary
foundation for the masonry load. A lintel must be used over
the top of the appliance to support the additional weight of
masonry construction.
• If installing the Komfort Zone Kit (#KZK-072), please reference
the manual included with kit.
• If installing a heat transfer kit(s), please reference the manual
included with the kit.
• If using a vented cavity option, please reference Section 3.10
Heat Distribution Cover Plates on page 18.
48⁄”
(1235mm)
½”
86
(2197mm)
Figure 3.4, Framing Dimensions
14 FRAMING Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces #CLW-72 R.1 April 2019
79
¼”
(2013mm)
22”
(559mm)
3.6 Floor Support and Protection
• Floor protection in front of the replace is not required.
Combustible material may be used if installing a hearth
extension. Consider the thickness of the hearth extension
nishing material if building a replace platform. If using a safety
screen only, the hearth may be ush with the nishing edge. If
using a surround, the bottom of the replace surround must be
level with nished hearth extension for proper t of the optional
surround.
• If this appliance is to be installed directly on carpeting, tile,
or other combustible material other than wood ooring, this
appliance shall be installed on a metal or wood panel extending
the full width and depth of the appliance.
• If the appliance is to be installed above oor level, a solid,
continuous platform must be constructed below the appliance.
3.7 Recess Construction
WARNING: All clearances to venting must be maintained.
Mounting a television above a replace has become a common
practice. Television surface temperatures are aected by mantel
depth, ceiling heights, and wall and mantel construction material.
Most television manufacturers specify in their instructions that a
television should not be installed on, near, or above a heat source.
Television location rests solely on the homeowner. It is the home
owner’s responsibility that the preferred TV mounting and mantel
design will not exceed the listed maximum operation temperature of
their electronic goods.
Tests performed determined that surface temperatures did not
exceed 150°F (66°C) when a 4¼ in (108mm) (measured from the
backside of the combustible framing) deep recess is constructed
above the replace. See illustrations below.
51⁄”
(1311mm)
4
¼”
(108mm)
¼”
79
(2013mm)
Figure 3.5, Recess Framing
51⁄”
(1311mm)
86
½”
(2197mm)
¼”
4
(108mm)
22”
(559mm)
¼”
79
(2013mm)
FIREPLACE ENCLOSURE FLOOR
Figure 3.6, Recess Framing - Side View
#CLW-72 R.1 April 2019 Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces FRAMING 15
3.8 Vent Termination Framing
IMPORTANT: Vent cap location must be in compliance with Section 6.2
Minimum Termination Clearances on page 35.
WARNING: DO NOT RECESS THE VENT CAP INTO WALL OR SIDING.
3.8.1 Vertical Terminations
CAUTION: Cold air transfer area. The surround replace chase
must comply with all clearances as outlined in this manual, and be
constructed in compliance with local building codes. Outside walls
should be insulated to prevent cold air from entering room.
• Follow vent pipe manufacturer’s installation instructions for
vertical terminations.
• A minimum of 1 in (25 mm) clearance on all sides of the vertical
vent pipe must be maintained.
• Attic insulation shields may be insulated using unfaced
insulation products listed as non-combustible per ASTM E 136.
NATURAL GAS RIGID PIPE
MINIMUM HORIZONTAL TERMINATION
22”
(559mm)
3.8.2 Horizontal Terminations
IMPORTANT: Horizontal vent sections require 1/4 in (6 mm) rise for
every 12 in (305 mm) of travel for natural draft applications.
NOTE: Elbows listed with approved vent systems for this appliance vary
in vertical length. Please consult the vent manufacturer’s instructions
to determine the elbow dimension used for installation. Adjust the
wall pass-through rough opening dimensions to maintain clearance
requirements.
Wall thimble products that comply with the required 1 in (25 mm)
clearance to combustibles, must be installed for all horizontal vent
runs that pass through interior or exterior walls. These wall thimble
products may be insulated using unfaced insulation products listed as
noncombustible per ASTM E 136.
1. Measure from oor level of the replace to the center of where
the vent pipe will penetrate the wall.
2. Cut and frame an opening in the wall to allow the vent system
to run level through the wall pass-through. This wall passthrough may be fully lined with insulation products listed as
noncombustible per ASTM E 136. A minimum 1 in (25 mm) on all
sides of the horizontal vent pipe at the wall pass-through must
be maintained.
3. Follow the vent pipe manufacturer’s installation instructions for
vent installation.
½”
69
(1765mm)
PROPANE RIGID PIPE
MINIMUM HORIZONTAL TERMINATION
22”
(559mm)
81½”
(2070mm)
Figure 3.7, Vent Termination Locations
16 FRAMING Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces #CLW-72 R.1 April 2019
3.9 Outdoor Covered Fireplace Installation
An outdoor covered replace installation allows a replace to be
installed in an outdoor covered area, where the appliance is protected
from direct precipitation.
Follow the instructions and illustration below for installation
procedures.
3.9.1 Safety Screen Barriers
Hussong Mfg. highly recommends to use black painted safety barriers
in outdoor installations. Other screen barriers that incorporate
a plated or patina nish are highly susceptible to oxidation and
discoloration.
ROOF OVERHANG
3.9.2 Requirements
• Fireplace operation is approved from 40°F to 110°F.
• All wiring connections shall be in accordance with outdoor
requirements of NECA NFPA 70.
• All clearances and requirements in your appliance manual must
be adhered to.
A
SIDE OF
FIREPLACE
BACK OF
FIREPLACE
The overhang (A) must be a minimum of 1/2 or
greater of the rooine elevation (B) above the base
of the replace.
EXAMPLE: If rooine (B) is 10 ft above the base of replace, the overhang (A) must be 5 ft
or greater. The width of the overhang to EACH side of the replace (C) must be 5 ft or greater.
Figure 3.8, Outdoor Covered Fireplace Install
B
FRONT OF
FIREPLACE
CC
The width of the overhang to each side of the
appliance (C) must be a minimum of 1/2 or
greater of the rooine elevation (B) above the
base of the replace.
#CLW-72 R.1 April 2019 Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces FRAMING 17
3.10 Heat Distribution Cover Plates
IMPORTANT: Do not remove cover plates for standard installation.
Remove only for specic applications or installations that require
removal of cover plates. For facing and nishing requirements for
the vented cavity options, see Section 4.4 Vented Cavity Facing and
Finishing Options on page 30.
3.10.1 Kozy Zone Kit and Vented
Cavity Cover Plates
The following design options have specic framing requirements,
mantel requirements, and exterior trim dimensions. The appliance
convection bae and outer shell plates must be removed for heat
distribution required by cavity framing designs.
1. Remove the (6) cover plates that correspond to the vented cavity
options front,, or top vented cavity. See Figure 3.9. If planning
to install the Kozy Zone kit, these (6) cover plates will also have
to be removed. See the #KZK-072 manual for further replace
preparation.
3.10.2 Exterior and Interior Heat
Transfer Kit Cover Plates
Figure 3.10 shows removal of the Heat Transfer Kit cover plates. There
are (2) square cover plates located on the rear of the outer shell of the
appliance. This appliance can have (2) Heat Transfer Kits installed at
the same time. It can be up to two of the same heat transfer kit or a
combination of interior and exterior kits.
REMOVE (2) SQUARE COVER PLATES FOR HEAT TRANSFER KITS
(SEE HEAT TRANSFER KIT MANUALS FOR MORE INFORMATION)
Figure 3.10, Heat Transfer Kit Cover Plate Removal
REMOVE (6) CIRCLE COVER PLATES FOR KZK-072 OR
VENTED CAVITY OPTIONS FRONT AND TOP VENTED CAVITY
Figure 3.9, Cover Plate Removal
18 FRAMING Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces #CLW-72 R.1 April 2019
3.11 Vented Cavity
3.11.1 Clearance to Sprinkler
• In a situation where a sprinkler head is installed within the
proximity to a vented cavity air discharge opening, Figure 3.11
MUST be followed.
• The distance between a sprinkler head and discharge opening
cannot be less than 60” (1524mm) in length at every point from
the origin of the discharge opening. You must also verify the
sprinkler head sensor is set to the proper heat setting so it does
not activate when the room heats up from the replace being
operated normally.
• Please follow local building codes to determine what
temperature setting is relevant for your installation.
3.11.2 Vented Cavity Fireplace Preparation
1. All framing requirements outlined in Sections 3.5, 3.6, and 3.7
apply to all vented cavity installations.
2. All minimum required dimensions must be maintained after all
nishing materials are installed.
3. Remove the cover plates that correspond to the vented cavity
option you have chosen. See Section 3.10 Heat Distribution
Cover Plates on the previous page.
4. Remove the convection bae from the appliance. The bae
is secured by (2) screws right behind the upper edge of the
replace opening. See Figure 3.13. Recycle this panel if it is no
longer needed.
5. See Section 4.4 Vented Cavity Facing and Finishing Options on
page 30 for vented cavity facing and mantel requirements.
Figure 3.12, Air Flow inside Appliance with Convection Bae Removal
CONVECTION BAFFLE
CONVECTION BAFFLE
Figure 3.13, Convection Bae Removal
60”
(1524mm)
CEILING
MIN
AIR DISCHARGE OPENING
Figure 3.11, Clearance from Air Discharge Opening to Sprinkler Head
#CLW-72 R.1 April 2019 Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces FRAMING 19
3.11.3 Front Vented Cavity Option
NOTE: This vented cavity option allows the use of 19 gauge or less
hardware mesh that is 1/2” x 1/2” to prevent any items from entering
the vented cavity. This hardware mesh is optional and the only
approved item for use within the air discharge opening.
WARNING: Do NOT cover or place any items in the area of the air
discharge opening. Failure to comply with these instructions could
create a re hazard. Grilles and louvers are not allowed in the discharge
opening.
WARNING: Ensure air ow within the air discharge opening is not
restricted in any way.
WARNING: Minimum dimensions for the air discharge MUST BE
maintained after all nishing materials are installed.
• Figure 3.14 shows the minimum required dimensions for
the vent cavity air discharge opening. This single 2” x 70” air
discharge opening can be in either the front of the replace
chamber, so hot air exits into the room the replace is installed,
or the discharge opening can be in an adjacent room where the
discharge opening would be located on the rear of the replace
chamber. See Figure 3.15.
• Figure 3.16 shows an alternative installation method where you
cap o the replace cavity so the air discharge opening can
be located further down the replace chamber. If you cap the
replace cavity o, it cannot have any vent pipe running through
the top with a ceiling restop. This installation method can
elevate any possible concerns with paint discoloration from heat
or dust.
• Figure 3.17 shows the installation of crown molding or similar
trim work that goes up to the edge of the air discharge opening.
This molding or trim cannot decrease the minimum opening
requirement.
• Figure 3.18 on the following page shows an alternative
installation for the front vented cavity option with an air
discharge overhang in front of the air discharge opening. This
installation method can provide a means to visually hide the air
discharge opening.
VENTED CAVITY OPTION WITH AIR DISCHARGE LOCATED IN THE REAR TO ADJACENT ROOM
2”
(51mm)
70”
(1778mm)
NOTE: ALL FRAMING REQUIREMENTS OUTLINED IN SECTION 3.5, 3.6, & 3.7 APPLY TO THIS INSTALLATION
Figure 3.15, Vented Cavity Rear to Adjacent Room Standard Installation
CEILING
½”
2
(63mm)
2” (50mm)
6”
(152mm)
MIN
MIN
½”
1
MAX
(38mm)
ENCLOSURE TOP
MUST BE INSTALLED
Figure 3.16, Front Vented Cavity Alternative Installation
FRONT VENTED CAVITY OPTION WITH AIR DISCHARGE IN FRONT
CEILING
2”
(51mm)
70”
(1778mm)
NOTE: ALL FRAMING REQUIREMENTS OUTLINED IN SECTION 3.5, 3.6, & 3.7 APPLY TO THIS INSTALLATION
Figure 3.14, Front Vented Cavity Standard Installation
(305mm)
Figure 3.17, Front Vented Cavity Crown Molding Installation
12” (305mm)
12”
*MUST MAINTAIN 2” (50mm) CLEARANCE FOR FULL
LENGTH OF CROWN MOLDING / TRIM PROJECTION
WHEN INSTALLATING CROWN MODLING, YOU CAN
2”
(50mm)
ENCLOSURE
HAVE A MAXIMUM OF 12” OF TRIM
20 FRAMING Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces #CLW-72 R.1 April 2019
AIR DISCHARGE OVERHANG
AIR DISCHARGE OPENING
FRONT (3½” x 70”) MIN
6” MAX
AIR DISCHARGE OVERHANG
Figure 3.18, Front Vented Cavity Alternative Installation with Overhang
3½” MIN
8”
MIN
ENCLOSURE TOP
MUST BE INSTALLED
¼” MIN
79
70” MIN
AIR DISCHARGE OPENING
76” MIN
3” MIN
6” MAX
#CLW-72 R.1 April 2019 Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces FRAMING 21
3.11.4 Top Vented Cavity Framing
1½”
(38mm)
12”
(305mm)
12” (305mm)
CEILING
ENCLOSURE
*MUST MAINTAIN 1
½” (38mm) CLEARANCE FOR FULL
LENGTH OF CROWN MOLDING / TRIM PROJECTION
NOTE: This vented cavity option allows the use of 19 gauge or less
hardware mesh that is 1/2” x 1/2” to prevent any items from entering
the vented cavity. This hardware mesh is optional and the only
approved item for use within the air discharge opening.
WARNING: Do NOT cover or place any items in the area of the air
discharge opening. Failure to comply with these instructions could
create a re hazard. Grilles and louvers are not allowed in the discharge
opening.
WARNING: Ensure air ow within the air discharge opening is not
restricted in any way.
WARNING: Minimum dimensions for the air discharge MUST BE
maintained after all nishing materials are installed.
• Figure 3.19 shows the replace chamber ending 1-1/2” from
the ceiling on all three sides with the entire top of the chamber
1-1/2” from the ceiling.
• Figure 3.20 shows the installation of crown molding or similar
trim work that goes up to the edge of the air discharge opening.
This molding or trim cannot decrease the minimum opening
requirement.
• Figure 3.21 on the following page shows an alternative
installation for the top vented cavity option with an air discharge
overhang in front of the air discharge opening. This installation
method can provide a means to visually hide the air discharge
opening.
Figure 3.20, Top or Front and Side Cavity Crown Molding Installation
TOP VENTED CAVITY FRAMING
1
½”
(38mm)
1½”
(38mm)
½”
1
(38mm)
NOTE: ALL FRAMING REQUIREMENTS OUTLINED IN SECTION 3.5, 3.6, & 3.7 APPLY TO THIS INSTALLATION
Figure 3.19, Top Vented Cavity Installation
22 FRAMING Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces #CLW-72 R.1 April 2019
AIR DISCHARGE OVERHANG
AIR DISCHARGE
OPENING
ENTIRE TOP
AT 3 ½” MIN
AIR DISCHARGE OVERHANG
6”
MIN
Figure 3.21, Top Vented Cavity Alternative Installation with Overhang
6” MAX
3½” MIN
6”
MIN
AIR DISCHARGE OPENING
ENCLOSURE TOP
MUST BE INSTALLED
¼” MIN
79
6” MAX
#CLW-72 R.1 April 2019 Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces FRAMING 23
4.0 FACING AND FINISHING
4.1 Standard Installation Facing
and Finishing Requirements
WARNING: Maintain all minimum clearances to combustibles from the
appliance and vent system.
NOTE: See Section 4.4 Vented Cavity Facing and Finishing Options on
page 30 additional mantel, hearth, and sidewall clearances.
NOTE: If installing a Kozy Komfort Zone Kit (#KZK-072), see manual
included with the kit for additional mantel, hearth, and sidewall
clearances.
4.1.1 Mantel Requirements
WARNING: All minimum clearances to combustible material MUST be
maintained.
• Combustible Mantel Projections - As referenced in Figure 4.1,
the 3/4" trim can start at 16-1/2" (419mm) above the nishing
edge with a 6" (152mm) mantel starting at 20" (508mm) above
the nishing edge. Mantel projections can increase 1" (25mm) of
depth for every 1" (25mm) of height starting at the 6" (152mm)
mantel.
• Non-combustible Mantel Projections - Minimum Vertical and
Maximum Horizontal: A minimum vertical clearance of 6 in (152
mm) above the nishing edge to a maximum 6 in (152 mm)
depth of a non-combustible mantel. Follow projection 1 in (25
mm) up for every 1 in (25 mm) deeper. See Figure 4.2.
4.1.4 Finishing Recommendations
NOTE: The surface area above the appliance may be aected by high
temperatures emitted from this appliance. To help avoid or reduce the
possibility of the sheetrock to crack, Hussong Mfg. recommends the
following methods:
• Ensure the non-combustible material and sheetrock is dry and
dust free.
• For taping and mudding seams, we recommend heat resilient
tape, mesh and joint compounds, such as Durabond. Mud must
be cured as per manufacturer’s recommendations.
• For a painted surface, use a high quality acrylic latex primer
and nish coat. Avoid at or light-colored paints to prevent
discoloring.
4.1.2 Adjacent Sidewall Requirements
• The adjacent sidewall must be 6" (152mm) from the nishing
edge of the replace.
4.1.3 Facing Requirements
• Non-combustible material is required at the top and sides of
the replace. This replace is designed to accommodate noncombustible facing material up to 3/4 in (19mm) thick.
• Install facing material up to the nishing edge that surrounds
the glass frame assembly. Do not apply any material beyond this
point. The glass frame assembly must be removable.
• Material may be attached to the bottom front cover panel using
a silicone sealant that has a 300°F (149°C) continuous exposure
rating.
• It is acceptable to pre-drill holes and to use self-tapping screws
prior to attach the non-combustible material to the top and sides
of the replace face. In Figure 4.5, screws can only penetrate the
replace outer shell up to 1/2" (13mm) in the allowed areas.
24 FACING AND FINISHING Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces #CLW-72 R.1 April 2019
EACH SQUARE REPRESENTS 1”
(25mm) OF NON-COMBUSTIBLE
MANTEL PROJECTION
45°
12” (305mm)
9” (229mm)
20”
(508mm)
6” (152mm)
¾” trim
(419mm)
26”
(660mm)
22”
(559mm)
16
½”
79¼”
(2013mm)
Figure 4.1, Combustible Mantel Clearances
FINISHING EDGE
EACH SQUARE REPRESENTS 1”
(25mm) OF NON-COMBUSTIBLE
48¼”
(1226mm)
MANTEL PROJECTION
FIREPLACE ENCLOSURE FLOOR
22”
(559mm)
6”
(152mm)
FINISHING EDGE
14” (356mm)
28¼”
(718mm)
11” (279mm)
8” (203mm)
FIREPLACE ENCLOSURE FLOOR
79
¼”
(2013mm)
Figure 4.2, Non-combustible Mantel Clearances
#CLW-72 R.1 April 2019 Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces FACING AND FINISHING 25
5⁄”
(142mm)
Figure 4.3, Finished Opening Clearances
½”
75
(1791mm)
86
(2197mm)
20
(517mm)
18
(465mm)
9
¾”
(247mm)
½”
⁄”
⁄”
48
⁄”
(1235mm)
26 FACING AND FINISHING Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces #CLW-72 R.1 April 2019
COMBUSTIBLE MATERIAL ALLOWEDNON-COMBUSTIBLE MATERIAL ONLY
COMBUSTIBLE MATERIAL ALLOWED
SEE IMAGE BELOW FOR ACCEPTABLE
SCREW LOCATIONS
COMBUSTIBLE MATERIAL ALLOWED
NON-COMBUSTIBLE MATERIAL ONLY
LOWER COVER PANEL
COMBUSTIBLE MATERIAL ALLOWED
(BOTTOM 3/4” [19mm])
¾
”
(19mm)
39
⁄
”
(1006mm)
75
⁄
”
(1915mm)
18
⁄
”
(465mm)
10
½
”
(267mm)
6
⁄
”
(161mm)
21
⁄
”
(538mm)
¾
”
(19mm)
Figure 4.4, Minimum Non-Combustible Finishing Dimensions
SCREW PATTERN LOCATIONS
NON-COMBUSTIBLE MATERIAL ONLY
75
⁄”
(1915mm)
NO SCREWS ALLOWED
4
¼”
(108mm)
9
¾”
(248mm)
NO SCREWS ALLOWED
13”
(330mm)
Figure 4.5, Minimum Non-Combustible Finishing Dimensions Screw Locations
#CLW-72 R.1 April 2019 Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces FACING AND FINISHING 27
3¾”
(95mm)
NO SCREWS ALLOWED
COMBUSTIBLE MATERIAL ALLOWED
1
½”
(38mm)
13”
(330mm)
NO SCREWS ALLOWED
(95mm)
3
¾”
4.2 #CW72-SCK Optional Skim Coat Kit
If you plan to skim coat nish across the combustible and noncombustible material and plan to use 1/2" thick material, you
will need to use the #CW72-SCK Slim Coat Finish to have the
noncombustible material ush with the nishing ange of the
replace.
This kit includes:
(16) self-tapping screws (2) side panels
(2) top & bottom panels
1. Ensure the hand bend tabs are bent at a 90° angle for required
clearances. This is required to provide 1/4” of the spacing
required for a ush mount installation.
2. Install panels. Align the panels with the corners of the nishing
ange.
3. Do not use screws above the framing for the gas and electrical
components when installing the bottom panel. See Section
Figure 4.4, Minimum Non-Combustible Finishing Dimensions on
page 20 for maintaining required areas.
Figure 4.8, Panels Installed
Figure 4.6, Hand Bend Tab
Figure 4.7, Aligned Corners
Figure 4.9, Installed Panels and Non-Combustible Material
28 FACING AND FINISHING Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces #CLW-72 R.1 April 2019
4.3 Masonry Finishing Guidelines
for Optional Surrounds
• Figure 4.10 shows where to end masonry nishing materials,
when measuring from the nishing edge, to allow installation of
any optional surround. Most masonry material will not t behind
the optional surround(s) when it is installed.
• Measurement 'A' shows the space to leave on each side.
• Measurement 'B' shows the space to leave on the top and the
bottom.
SURROUND EDGE
B
FINISHING TRIM EDGE
Surround A B
CW72-RS 1-1/2" (38mm) 1-1/2" (38mm)
CW72-RS4 2-5/8" (66mm) 2-5/8" (66mm)
CW72-GS 6" (152mm) 2-1/2" (64mm)
CW72-FS 3-1/8" (79mm) 3-1/8" (79mm)
Figure 4.10, Masonry Finishing Materials Guidelines
A
#CLW-72 R.1 April 2019 Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces FACING AND FINISHING 29
4.4 Vented Cavity Facing and
Finishing Options
WARNING: Maintain all minimum clearances to combustibles from the
appliance and vent system.
WARNING! RISK OF FIRE : The following facing and nishing options are
for use ONLY when using an optional vented cavity with the convection
bae and cover plates removed. DO NOT follow these options unless
you are using the vented cavity option.
NOTE: All vented cavity options allow installation of up to 1" (25mm)
thick combustible material down to the replace nishing edge and
up to the edge of the vented cavity air discharged opening. Finishing
materials cannot block the required vented cavity discharge opening
requirements. Combustible nishing materials must go on top of the
required non-combustible nishing materials as shown in Figure 4.3.
NOTE: All vented cavity options allow the sidewall to be ush with the
replace nishing edge (safety screen only), or ush with an optional
surround installed.
RECTANGLE SURROUND (1 PIECE)
COMBUSTIBLE WALL FINISH
MAY BE INSTALLED OVER CEMENT
BOARD AND BUTT UP TO THE
FINISHING EDGE AROUND THE OPENING
EACH SQUARE REPRESENTS 1”
(25mm) OF MANTEL PROJECTION
EDGE OF SURROUND
29¾”
(756mm)
EDGE OF SURROUND
⁄”
8
(213mm)
12” (305mm)
⁄”
21
(543mm)
14” (356mm)
17” (432mm)
20” (508mm)
9” (229mm)
6” (152mm)
CW72-RS
COMBUSTIBLE WALL FINISH
MAY BE INSTALLED OVER CEMENT
BOARD AND BUTT UP TO THE
FINISHING EDGE AROUND THE OPENING
EACH SQUARE REPRESENTS 1”
(25mm) OF MANTEL PROJECTION
⁄”
28
(715mm)
9½”
(248mm)
NO SURROUND
12” (305mm)
9” (229mm)
14” (356mm)
17” (432mm)
20” (508mm)
6” (152mm)
18
(467mm)
FINISHING EDGE
FINISHING EDGE
Figure 4.12, Vented Cavity CW72-RS Facing and Finishing Clearances
⁄”
Figure 4.11, Vented Cavity No Surround Facing and Finishing Clearances
30 FACING AND FINISHING Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces #CLW-72 R.1 April 2019
RECTANGLE SURROUND (4 PIECE)
CW72-RS4
FORGED SURROUND
CW72-FS
COMBUSTIBLE WALL FINISH
MAY BE INSTALLED OVER CEMENT
BOARD AND BUTT UP TO THE
FINISHING EDGE AROUND THE OPENING
EACH SQUARE REPRESENTS 1”
(25mm) OF MANTEL PROJECTION
12” (305mm)
9” (229mm)
6” (152mm)
EDGE OF SURROUND
⁄”
23
(600mm)
14” (356mm)
17” (432mm)
20” (508mm)
7¼”
(184mm)
⁄”
30
(784mm)
EDGE OF SURROUND
Figure 4.13, Vented Cavity CW72-RS4 Facing and Finishing Clearances
GALLERY SURROUND
CW72-GS
COMBUSTIBLE WALL FINISH
MAY BE INSTALLED OVER CEMENT
BOARD AND BUTT UP TO THE
FINISHING EDGE AROUND THE OPENING
EACH SQUARE REPRESENTS 1”
(25mm) OF MANTEL PROJECTION
12” (305mm)
9” (229mm)
6” (152mm)
EDGE OF SURROUND
24
¾”
(629mm)
14” (356mm)
17” (432mm)
20” (508mm)
6¾”
(171mm)
½”
31
(800mm)
EDGE OF SURROUND
Figure 4.15, Vented Cavity CW72-FS Facing and Finishing Clearances
COMBUSTIBLE WALL FINISH
MAY BE INSTALLED OVER CEMENT
BOARD AND BUTT UP TO THE
FINISHING EDGE AROUND THE OPENING
EACH SQUARE REPRESENTS 1”
(25mm) OF MANTEL PROJECTION
12” (305mm)
9” (229mm)
6” (152mm)
EDGE OF SURROUND
23
⁄”
(600mm)
14” (356mm)
17” (432mm)
20” (508mm)
¼”
7
(184mm)
30⁄”
(784mm)
EDGE OF SURROUND
Figure 4.14, Vented Cavity CW72-RS Facing and Finishing Clearances
#CLW-72 R.1 April 2019 Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces FACING AND FINISHING 31
4.5 Barrier Installation
4.5.1 Safety Barrier Screen (#CW72-ES)
1. Locate the (2) slots located on each side of the replace metal
cabinet.
2. Align the notched tabs located on the back of the safety screen
with the slots on the replace frame.
3. Raise the safety screen front slightly into slots and allow the tabs
to lower into position.
• To remove safety screen: lift the screen up and out of slots.
SAFETY BARRIER SCREEN
#CW72-ES
Figure 4.16, Safety Screen Installation
4.5.2 Optional Surrounds (CW72-RS,
CW72-RS4, CW72-GS, CW72-FS)
1. Remove the safety barrier.
2. Locate the (2) mounting nuts on each side of the replace metal
cabinet.
3. Align the mounting holes on the surround to the corresponding
mounting nuts.
4. Secure with (4) truss head screws (provided).
5. Reinstall safety barrier.
(2) TRUSS HEAD
SCREWS LEFT SIDE
MOUTNING
NUTS
Figure 4.17, Surround Installation
32 FACING AND FINISHING Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces #CLW-72 R.1 April 2019
5.0 GAS LINE CONNECTION
5.1 Gas Conversion (sold separately)
ATTENTION: The conversion shall be carried out in accordance with the
requirements of the provincial authorities having jurisdiction and in
accordance with the requirements of the ANSI Z223.1 installation code.
This replace is manufactured for use with natural gas. Follow the
instructions included with the conversion kit if converting to propane.
5.2 Gas Line Installation
CAUTION: Installation of the gas line must only be done by a qualied
person in accordance with local building codes, if any. If not, follow
ANSI 223.1. Commonwealth of Massachusetts installations must be
done by a licensed plumber or gas tter.
NOTE: The appliance and its individual shuto valve must be
disconnected from the gas supply piping system during any pressure
testing of that system at pressures in excess of ½ psi (3.5 kPa). For test
pressures equal to or less than ½ psi (3.5 kPa), the appliance must be
isolated from the gas supply piping system by closing its individual
manual shut-o valve.
• A listed (and Commonwealth of Massachusetts approved) ½
in (13 mm) tee handle manual shut-o valve and exible gas
connector are to be connected to the ½ in (13 mm) control valve
inlet. If substituting for these components, please consult local
codes for compliance.
• This replace is equipped with a ⁄” (10 mm) x 36” (914 mm) long
exible gas connector and manual shut-o valve.
• Run gas line into replace into the access hole provided on
the left side of this replace. See Section Figure 2.1, CLW-72
Dimensions on page 9. The gas line should be run to the
point of connection where the shut-o valve and exible gas line
will connect.
• Do not run gas line in a manner that would obstruct fan
operation.
• For high altitude installations, consult the local gas distributor or
the authority having jurisdiction for proper rating methods.
Table 5.1, Inlet Gas Supply Pressures
Fuel Minimum Pressure Maximum Pressure
Natural Gas 5” WC (1.25 kPa) 10.5” WC (2.62 kPa)
Propane 12” WC (2.99 kPa) 13” WC (3.24 kPa)
#CLW-72 R.1 April 2019 Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces GAS LINE CONNECTION 33
6.0 TERMINATION LOCATIONS
H - MINIMUM HEIGHT FROM ROOF TO
6.1 Vertical Vent Cap Termination
WARNING: This appliance must not share or be connected to a chimney
ue serving a separate solid-fuel burning appliance.
LOWEST
DISCHARGE
OPENING
APPROVED CAP
MINIMUM
12” (.30m)
APPROVED
VENT PIPE
HH
x
12
ROOF PITCH = x/12
LOWEST DISCHARGE OPENING
Figure 6.1, Vertical Vent Cap Clearance
Minimum height (H) from roof
Roof Pitch Feet Meters
Flat to 6/12 1.0 0.30
Over 6/12 to 7/12 1.25 0.38
Over 7/12 to 8/12 1.5 0.46
Over 8/12 to 9/12 2.0 0.61
Over 9/12 to 10/12 2.5 0.76
Over 10/12 to 11/12 3.25 0.99
Over 11/12 to 12/12 4.0 1.22
Over 12/12 to 14/12 5.0 1.52
Over 14/12 to 16/12 6.0 1.83
Over 16/12 to 18/12 7.0 2.13
Over 18/12 to 20/12 7.5 2.27
Over 20/12 to 21/12 8.0 2.44
34 TERMINATION LOCATIONS Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces #CLW-72 R.1 April 2019
6.2 Minimum Termination Clearances
Figure 6.2, Vent Cap Locations
O
D
C
H
G
J
K
P
I
AREA WHERE TERMINAL
IS NOT PERMITTED
E
B
L
M
B
N
F
A
Canadian installations US installations
A Clearance above grade, veranda, porch, deck, or balcony 12 in (30 cm) 12 in (30 cm)
B Clearance to window or door that may be opened 12 in (30 cm) 9 in (23 cm)
C Clearance to permanently closed window (recommended to prevent condensation on
12 in (30 cm)* 12 in (30 cm)*
window)
D Vertical clearance to ventilated sot located above the terminal within a horizontal
24 in (61 cm)* 24 in (61 cm)*
distance of 2 feet (61 cm) from the center line of the terminal
E Clearance to unventilated sot 12 in (30 cm)* 12 in (30 cm)*
F Clearance to outside corner 0 in (0 cm)* 0 in (0 cm)*
G Clearance to inside corner 12 in (30 cm)* 12 in (30 cm)
H Clearance to each side of center line extended above meter/regulator assembly 3 ft (91 cm) within a height
15 ft (4.5 m) above the meter/
regulator assembly
I Clearance to service regulator vent outlet 3 ft (91 cm) *
J Clearance to non mechanical air supply inlet to building or the combustion air inlet to
12 in (30 cm) 9 in (23 cm)
any other appliance
K Clearance to mechanical air supply inlet 6 ft (1.83 m) 3 ft (91 cm) above if within 10 ft
(3 m) horizontally
Massachusetts: 10 ft (3 m)
L Clearance above paved sidewalk or paved driveway located on public property 7 ft (2.13 m)† *
M Clearance under veranda, porch deck, or balcony 12 in (30 cm)‡ 12 in (30 cm)
N Clearance between two horizontal terminations 12 in (30 cm) 12 in (30 cm)
O Clearance between two vertical terminations (may be same height) 12 in (30 cm) 12 in (30 cm)
P Above furnace exhaust or inlet 12 in (30 cm) 12 in (30 cm)
* Clearance in accordance with local installation codes and the requirements of the gas supplier.
† A vent shall not terminate directly above a sidewalk or paved driveway that is located between two single family dwellings and serves both dwellings.
‡ Permitted only if veranda, porch, deck, or balcony is fully open on a minimum of two sides beneath the oor.
VINYL SOFFIT, VINYL CEILING, AND VINYL OVERHANG DISCLAIMER: Clearances to heat resistant material (i.e. wood, metal). This does not include vinyl. Hussong
Manufacturing Co., Inc. will not be held responsible for heat damage caused from terminating under vinyl overhangs, vinyl ceilings, or vinyl ventilated/unventilated sots.
*
#CLW-72 R.1 April 2019 Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces TERMINATION LOCATIONS 35
7.0 VENTING
7.1 Approved Vent Systems
This appliance is equipped for use with a 5” (127mm) exhaust by 8”
(203mm) air intake co-axial vent pipe system.
This appliance is approved for use for Kozy Heat Power Venting #KPV
(sold separately).
This appliance is approved for use with manufacturers (horizontal and
vertical terminations): American Metal Products (Ameri-Vent), BDM,
ICC, Metal Fab, Olympia Chimney Supply, Inc., Selkirk, and Simpson
DuraVent.
The following horizontal termination caps are not allowed: Amerivent
5DHC, Simpson Duravent 58DVA-HRCS, 58DVA-HSC, 58DVA-HSCH,
Selkirk 5DT-HCR, ICC TM-5RHT & TM-5DHT, and Olympia VDV-HSC05.
Refer to the vent manufacturer’s installation manual for complete
installation instructions. Vent installation must conform with venting
requirements and restrictions as outlined in this manual.
7.2 Venting Requirements
NOTE: Consult the local and national installation codes to assure
adequate combustion and ventilation air is available. Venting
requirements apply to both natural gas and propane.
• Flame height and appearance will vary depending upon venting
conguration and the type of fuel used.
• Provide a means for visually checking the vent connection to the
appliance after the replace is installed.
• A minimum of 1 in (25 mm) clearance on all sides of the
vertical vent pipe must be maintained. Attic insulation shields
may be insulated using unfaced insulation products listed as
noncombustible per ASTM E 136.
• Wall thimble products that comply with a minimum of 1 in (25
mm) clearance on all sides of the horizontal vent pipe at the wall
pass-through must be maintained. Wall thimble products that
comply with the required clearances to combustibles must be
installed for all horizontal vent runs that pass through interior
or exterior walls. These wall thimble products may be insulated
using unfaced insulation products listed as noncombustible per
ASTM E 136.
7.4 Vent Restriction
Burner ame appearance and characteristics are aected by altitude,
fuel quality, venting conguration, and other factors. To achieve
desirable ame appearance, the vent exhaust may be restricted by
the restrictor plate (included in components packet).
The restrictor plate is shipped with all inner rings intact, and when
installed, provides the most vent restriction. There are (2) inner rings
that can be knocked out. The inner most ring knocked out will create
less restriction, and the outer most ring knocked out will create the
least amount of restriction.
Follow Figure 7.1 for restrictor plate installation before attaching
venting or through the bae if venting is already attached. For vent
restriction plate recommendations and adjustments, see Section
11.2.2 Vent Restriction (after installation) on page 54.
SLIDE RESTRICTOR INTO EXHAUST PIPE ON
TOP OF FIREPLACE WITH TABS FACING TOWARDS
YOU PRIOR TO ATTACHING VENTING
RESTRICTOR PLATE
BEND TABS TO APPROX. 80˚ ANGLES TO CREATE
TENSION TO HOLD ITSELF IN PLACE WHEN INSTALLED
REMOVE INNER MOST CIRCLE
TO CREATE LESS RESTRICTION
REMOVE ALL INNER RINGS FOR
THE LEAST RESTRICTION
7.3 Use of Elbows
• MAXIMUM NUMBER OF ELBOWS: 5
• For each additional 90° elbow used after the rst elbow, 3 ft (91.4
cm) must be subtracted from maximum venting allowed.
• For each 45° elbow used, 1½ ft (457 mm) must be subtracted
from maximum venting allowed.
• (2) 45° degree elbows may be used in place of (1) 90° elbow.
INSERT RESTRICTOR INTO 5” (127mm) EXHAUST PIPE WITH THE TABS POINTING TOWARDS YOU
Figure 7.1, Restrictor Plate Installation
36 VENTING Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces #CLW-72 R.1 April 2019
REMOVE TERMINATION PANEL (4) SCREWS
7.5 Natural Draft Vent Installation
7.5.1 Natural Gas Venting
7.5.1.1 Vertical Terminations
Table 7.1, Natural Gas Natural Draft
Vertical Terminations - Min. Vertical / Max. Vertical
Minimum Vertical Length Maximum Vertical Length
3 ft 914 mm 50 ft 15.2 m
Minimum/ Maximum Vertical Venting:
45° vertical elbow + 3’ (914mm) minimum vertical length / 50’
(15.24m) maximum vertical length + termination cap
DIAG.1 NATURAL GAS VERTICAL VENTING
(A) Stand-o Heat Shields
(B) 45° Elbow
(C) 90° Elbow (not applicable)
(D) Termination Cap
D
(914mm)
50’
(15.24m)
3’
A
B
#CLW-72 R.1 April 2019 Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces VENTING 37
7.5.1.2 Combination Venting
IMPORTANT: Horizontal vent sections require ¼ in (6 mm) rise for every
12 in (305 mm) of travel.
DIAG.2 NATURAL GAS COMBINATION VENTING
(A) Stand-o Heat Shields
(B) 45° Elbow
(C) 90° Elbow
(D) Termination Cap
Table 7.2, Natural Gas Natural Draft
Minimum/Maximum Horizontal Terminations
Minimum
Vertical
Minimum
Vertical Vent Pipe
Minimum
Horizontal Run
Maximum
Horizontal Run
Venting
45° elbow 24 in 610 mm 9 in 229 mm 24 in 610 mm
45° elbow 36 in 914 mm 9 in 229 mm 48 in 1.2 m
45° elbow 48 in 1.2 m 9 in 229 mm 6 ft 1.83 m
Minimum Vertical Rise / Maximum Horizontal Terminations:
45° vertical elbow + 24” (610mm) vertical vent pipe + 90° horizontal
elbow + 9” (229mm) minimum horizontal / 24” (610mm) maximum
horizontal + termination cap
OR
45° vertical elbow + 36” (914mm) vertical vent pipe + 90° horizontal
elbow + 9” (229mm) minimum horizontal / 48 in (1.2m) maximum
horizontal + termination cap
OR
45° vertical elbow + 48” (1.2m) vertical vent pipe + 90° horizontal
elbow + 9” (229mm) minimum horizontal / 6’ (1.83m) maximum
horizontal + termination cap
Table 7.3, Natural Gas Natural Draft Terminations
Maximum
Vertical Rise
25 ft 7.6 m 25 ft 7.6 m 50 ft 15.2 m
Maximum number of elbows: 5
Max. Vertical/Max. Horizontal
Maximum
Horizontal Run
Total Length
24”
9”
(229mm)
(610mm)
C
A
24” (610mm) VENT PIPE
D
B
48”
9”
(229mm)
(1219mm)
C
A
36” (914mm) VENT PIPE
D
B
6’
9”
(229mm)
(1.83m)
C
D
A
48” (1219mm) VENT PIPE
B
Figure 7.2, Natural Gas Natural Draft Combination Venting
38 VENTING Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces #CLW-72 R.1 April 2019
7.5.2 Propane Venting
7.5.2.1 Vertical Terminations
Table 7.4, Propane Natural Draft
Vertical Terminations - Min. Vertical / Max. Vertical
Minimum Vertical Length Maximum Vertical Length
3 ft 914 mm 50 ft 15.2 m
Minimum/ Maximum Vertical Venting:
45° vertical elbow + 3’ (914mm) minimum vertical length / 50’
(15.24m) maximum vertical length + termination cap
DIAG.3 PROPANE VERTICAL VENTING
(A) Stand-o Heat Shields
(B) 45° Elbow
(C) 90° Elbow (not applicable)
(D) Termination Cap
D
(914mm)
50’
(15.24m)
3’
A
B
#CLW-72 R.1 April 2019 Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces VENTING 39
7.5.2.2 Combination Venting
IMPORTANT: Horizontal vent sections require ¼ in (6 mm) rise for every
12 in (305 mm) of travel.
Table 7.5, Propane Natural Draft
Minimum/Maximum Horizontal Terminations
Minimum
Vertical
Venting
45° elbow 36 in 914 mm 9 in 229 mm 24 in 610 mm
45° elbow 48 in 1.2 m 9 in 229 mm 48 in 1.2 m
45° elbow 60 in 1.5 m 9 in 229 mm 8 ft 2.44 m
Minimum Vertical Rise / Maximum Horizontal Terminations:
45° vertical elbow + 36” (914mm) vertical vent pipe + 90° horizontal
elbow + 9” (229mm) minimum horizontal / 24” (610mm) maximum
horizontal + termination cap
45° vertical elbow + 48” (1.2m) vertical vent pipe + 90° horizontal
elbow + 9” (229mm) minimum horizontal / 48 in (1.2m) maximum
horizontal + termination cap
45° vertical elbow + 60” (1.5m) vertical vent pipe + 90° horizontal
elbow + 9” (229mm) minimum horizontal / 8’ (2.44m) maximum
horizontal + termination cap
Maximum
Vertical Rise
Maximum number of elbows: 5
Minimum
Vertical Vent Pipe
Minimum
Horizontal Run
Maximum
Horizontal Run
OR
OR
Table 7.6, Propane Combination Natural Draft
Terminations Max. Vertical/Max. Horizontal
Maximum
Horizontal Run
25 ft 7.6 m 25 ft 7.6 m 50 ft 15.2 m
Total Length
DIAG.4 PROPANE COMBINATION VENTING
(A) Stand-o Heat Shields
(B) 45° Elbow
9”
(229mm)
C
A
9”
(229mm)
C
A
(C) 90° Elbow
(D) Termination Cap
24”
(610mm)
36” (914mm) VENT PIPE
B
48”
(1219mm)
48” (1219mm) VENT PIPE
D
D
B
8’
9”
(229mm)
(2.44m)
C
D
A
60” (1524mm) VENT PIPE
B
Figure 7.3, Propane Natural Draft Combination Venting
40 VENTING Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces #CLW-72 R.1 April 2019
8.0 FIREPLACE SETUP
8.1 Glass Frame Assembly
WARNING: Do not operate this replace with the glass removed,
cracked, or broken. Replacement of the glass assembly should be done
by a licensed or qualied service person.
8.1.1 Remove Glass Frame Assembly
WARNING: Do not remove the glass assembly when hot.
1. Remove the safety barrier.
2. Locate (4) spring-loaded latches securing the glass assembly at
the top of the rebox. Use the provided tool to unlatch the latch
assemblies from the ange on top of the glass valance.
3. Tilt the top of the glass valance forward and lift up to remove the
valance resting on the bottom frame rail.
8.1.2 Install Glass Frame Assembly
1. Tilt the top of the glass valance forward and align the glass
valance with the bottom frame rail
2. Use the provided tool to pull the (4) latch assemblies to latch
with the ange on top of the glass valance.
3. Reinstall safety barrier.
BOTTOM FRAME RAIL GLASS VALANCE ON FRAME RAIL
8.2 Burner/Perimeter Media Installation
WARNING: DO NOT BLOCK PILOT WITH MEDIA. A BLOCKED PILOT MAY
CAUSE DELAYED IGNITION.
8.2.1 Burner Media Kits
For media #903-LAV, #306-COP, #306-BLK
1. Install an even layer of your chosen media across the whole
burner. See Figure 8.2.
2. Save any unused media for later use.
8.2.2 Perimeter Media Kits
For media (2) #904-LAV, (2) #301-COP, #301-BLK, (2) #105-VERM, (2)
#104-SAND-B
1. Install an even layer of media across the front and rear perimeter.
See Figure 8.2.
2. Save any unused media for later use.
VALANCE AGAINST UNIT
ALL FOUR LATCHES SECURING VALANCE
Figure 8.2, Glass Media Installation
PROVIDED LATCH TOOL ATTACHED
TO TOP LATCH ASSEMBLY
Figure 8.1, Glass Frame Assembly Removal
#CLW-72 R.1 April 2019 Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces FIREPLACE SETUP 41
8.3 Control Board Removal and Installation
WARNING: Avoid burns or personal property damage by using
appropriate protection to remove any components if the burner and/
or pilot have been burning.
WARNING: DO NOT operate this appliance without the sealing gasket
(located under the control board) in place. If the sealing gasket is
damaged, it must be replaced.
CAUTION: Check all connections for leaks with soapy water, whether
eld or factory made.
8.3.1 Control Board Removal
1. Disconnect electrical power.
2. Locate the manual valve installed by your qualied service
technician. Turn the manual valve clockwise to the OFF position.
3. Remove the safety barrier, access cover, and glass frame
assembly.
4. Remove perimeter media and burner media.
5. Remove pilot shield (2) screws.
6. Remove media tray and burner (8) screws total. Release the
burner tube venturis o of the burner orices and remove from
rebox.
7. Remove media tray support brackets.
8. Remove the front and rear perimeters (18) screws.
9. Remove air intake shield (4) screws.
10. Remove and save (9) screws securing the control board.
11. Lift the control board out of the rebox, being careful not to
damage the sealing gasket underneath.
REMOVE PILOT SHIELD (2) SCREWS
REMOVE MEDIA TRAY AND BURNER (8) SCREWS
REMOVE MEDIA TRAY SUPPORT BRACKETS
REMOVE FRONT AND REAR PERIMETERS (18) SCREWS TOTAL
REMOVE AIR INTAKE SHIELD (4) SCREWS
8.3.2 Control Board Installation
1. Place the control board in the rebox, aligning the holes in
control board with the holes and alignment screws in rebox
bottom. VERIFY SEALING GASKET IS IN PLACE.
2. Secure the control board with screws previously removed.
3. Reinstall air intake shield with (4) screws previously removed.
4. Reinstall the front and rear perimeters (18) screws previously
removed.
5. Reinstall media tray side support brackets by aligning the screws
with the holes in the rebox oor.
6. Align the burner and media tray to the corresponding holes and
secure with (8) screws previously removed.
7. Reinstall pilot shield (2) screws.
8. Reinstall burner and perimeter media.
9. Reinstall the glass frame assembly, access cover, and safety
barrier.
10. Turn the manual valve counterclockwise to the ON position.
11. Reconnect electrical power.
12. Verify proper media placement, operation of replace, and any
electrical components.
REMOVE CONTROL BOARD
Figure 8.3, Control Board Removal and Installation
42 FIREPLACE SETUP Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces #CLW-72 R.1 April 2019
9.0 ELECTRICAL INFORMATION
IGNITER
[optional]
WARNING: Do not use this replace if any part has been under water.
Immediately call a qualied service technician to inspect this appliance
and to replace any part of the control system and any gas control which
has been under water.
WARNING - Electrical Grounding Instructions: This appliance is
equipped with a three-prong (grounding) plug for your protection
against shock hazard and should be plugged directly into a properly
grounded three-prong receptacle. Do not cut or remove the grounding
prong from this plug.
9.1 Electrical Specications
This appliance, when installed, must be electrically grounded in
accordance with local codes, or in the absence of local codes, with
the National Electrical Code, ANSI/NFPA 70, or the Canadian Electrical
Code, CSA C22.1.
MALE END
9.2 Wiring Requirements
• The IFC System Module requires 120V of electricity and/or
batteries to operate.
• Using the battery back-up will operate the burner only.
• Optional fan component will not function on battery back up
power.
POWER
VENT
VARIABLE
SPEED FAN
[optional]
VARIABLE
LIGHT
[optional]
AUX (ON/OFF)
BATTERY
PAC K
APPLIANCE
GROUND STAR
PILOT
FLAME
SENSOR
MAIN ON/OFF
SWITCH
SW1 BUTTON (RED)
PILOT
BURNER
885 PROFLAME
Figure 9.1, Wiring Schematics
#CLW-72 R.1 April 2019 Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces ELECTRICAL INFORMATION 43
9.3 Light Kit
CAUTION: Disconnect all electrical power from the replace before
performing this task.
NOTE: To avoid damage and prolong the life of the halogen bulbs,
never touch with bare hands. Always use a soft cloth when handling.
9.3.1 Install Light Kit
1. Remove the safety screen, access cover, and glass frame
assembly (if installed).
2. Remove the light kit cover and roped glass (4) screws. Save
screws.
3. Install or replace (2) halogen bulbs (included with this kit) into
lamp bases.
4. Reinstall light kit cover and roped glass with (4) screws
previously removed.
5. Reinstall glass frame assembly, access panel, and safety screen.
Figure 9.2, Light Kit Location
Figure 9.3, Light Kit Wiring
RED MALE
CONNECTORS
(from control module)
YELLOW FEMALE
CONNECTORS
BLUE FEMALE
CONNECTORS
BLACK
WHITE
RED MALE
CONNECTORS
44 ELECTRICAL INFORMATION Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces #CLW-72 R.1 April 2019
9.4 #SL42-028 Optional Fan Kit
ATTENTION: Installation of this fan kit should be done only by a
qualied installer.
WARNING: Verify household breaker is shut o prior to working on
any electrical lines. Disconnect all electric power from replace before
performing any of these tasks.
1. Remove safety barrier, access cover, and glass frame assembly.
2. Disconnect wiring terminals from fan motors.
3. With the motor end of the fan’s right side facing down and to
the right, insert fan into chamber. When inserting the fan into
the chamber, clear the bottom frame rail holding glass valance.
Insert the fan at the far end of the rebox after the frame rail has
ended.
4. When the motor end clears the replace face, turn the fan to the
left.
5. Rotate the top end down and to the right, lowering the fan into
control compartment.
6. Position fan as shown in Figure 9.5. As you rotate the fan towards
you, the upper edge of the fan discharge will lock behind the top
edge of replace air channel opening, securing fan into place.
DO NOT LET THE FAN REST ON ANY ELECTRICAL CORDS.
7. Repeat for the left fan, noting the fan rotation in steps above will
be opposite of the right fan.
8. Reattach wiring terminals to fan motors.
9. Plug the fan cord into the receptacle on the IFC control module.
See Section Figure 9.1, Wiring Schematics on page 43.
10. Reinstall the glass frame assembly, access cover and safety
barrier.
Figure 9.5, Steps 5 through 9
Figure 9.4, Steps 3 and 4
#CLW-72 R.1 April 2019 Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces ELECTRICAL INFORMATION 45
10.0 OPERATING INSTRUCTIONS
OFF
FOR YOUR SAFETY READ BEFORE OPERATING
WARNING: If you do not follow these instructions exactly, a re or explosion may result causing property damage, personal injury, or loss of life.
A. This appliance is equipped with an ignition device which
automatically lights the pilot. Do not try to light the pilot by
hand.
B. BEFORE OPERATING smell around the appliance area for gas. Be
sure to smell next to the oor because some gas is heavier than
air and will settle on the oor.
WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
• Do not touch any electric switch; do not use any phone in
your building.
• Immediately call your gas supplier from a neighbor’s phone.
WARNING
Do not operate appliance with the glass front removed, cracked, or
broken. Replacement of the glass should be done by a licensed or
qualied service person.
Under no circumstances should any solid fuel (wood, coal, paper,
cardboard, etc.) be used in this appliance.
Children and adults should be alerted to the hazards of high surface
temperature and should stay away to avoid burns or clothing ignition.
OPERATING INSTRUCTIONS
1. STOP! Read all the safety information above on this page.
2. Press the wireless remote OFF button.
3. Turn o all electric power to the appliance.
4. This appliance is equipped with an ignition device which
automatically lights the pilot. Do not try to light the pilot by
hand.
5. Locate the manual valve installed by your qualied service
technician.
6. Turn the manual valve clockwise to the OFF position.
7. Wait ve (5) minutes to clear out any gas. Then, smell
for gas, including near the oor. If you smell gas, STOP!
Follow ‘B’ in the safety information above. If you do not smell
gas, go to the next step.
8. Turn the manual valve counterclockwise to the ON
position.
Follow the gas supplier’s instructions.
• If you cannot reach your gas supplier, call the re
department.
C. Use only your hand to turn the gas control manual valve. Never
use tools. If the valve will not turn by hand, do not try to repair
it; call a qualied service technician. Force or attempted repair
may result in a re or explosion.
D. Do not use this appliance if any part has been under water.
Immediately call a qualied service technician to inspect the
appliance and to replace any part of the control system and
any gas control that has been under water.
CAUTION
Clothing or other ammable material should not be placed on or near
the appliance.
Young children should be carefully supervised when they are in the
same room as the appliance. Toddlers, young children and others
may be susceptible to accidental contact burns. A physical barrier is
recommended if there are at risk individuals in the house. To restrict
access to a replace or stove, install an adjustable safety gate to keep
toddler, young children and other at risk individuals out of the room
and away from hot surfaces.
9. Turn on all electric power to the appliance.
10. Press the wireless remote ON button.
11. If the appliance will not operate, follow the instructions, “To
Turn O Gas To Appliance” and call your service technician or
gas supplier.
ON
ON/OFF
TO TURN OFF GAS TO APPLIANCE
1. Press the wireless remote OFF button.
2. Turn o all electric power to the appliance if service is to be
performed.
When this replace is initially lit, condensation will appear on the glass. This is normal in all gas replaces and will disappear after several
minutes. A paint smell will occur during the rst few hours of burning. It is recommended to leave the fan o during this period to help speed
the paint curing process. This replace may produce noises of varying degree as it heats and cools due to metal expansion and contraction.
This is normal, and does not aect the performance or longevity of the replace.
46 OPERATING INSTRUCTIONS Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces #CLW-72 R.1 April 2019
3. Locate the manual valve installed by your qualied service
technician.
4. Turn the manual valve clockwise to OFF position.
NOTE
10.1 Setup Proame 2 IFC Module
1. Set the main ON/OFF rocker switch in the OFF position.
2. Install (4) AA batteries (not included) into backup battery holder
on the control module.
3. Install (3) AAA batteries (included in the components packet) in
the remote control battery bay, located at the base of the remote.
4. Connect the IFC Module to an AC power supply.
10.2 Initialize the Control System
IMPORTANT: Remove all packaging and combustible material from the
rebox before initializing the control system.
NOTE: Performing the next steps will initiate pilot start-up in manual
mode, where the pilot igniter will spark repeatedly. The pilot will ignite
if gas is supplied to the replace.
1. Locate the red SW1 button the IFC module.
2. Press the SW1 button. The IFC module will BEEP (3) times and
illuminate an amber LED. This indicates the receiver is ready to
synchronize with the transmitter.
3. Within (5) seconds, push the ON/OFF button on the remote
control. The receiver will BEEP (4) times to indicate the transmitter’s
command is accepted, and is set to the transmitter’s particular
code. The pilot will automatically ignite.
4. Press the remote control ON/OFF button again. The pilot will
extinguish, conrming the remote control command. The control
system is now initialized.
5. Set the main ON/OFF rocker switch to ON position for remote
control operation of the main burner and replace features.
10.4 Automatic Safety Restart
• This system will execute an automatic turn OFF command for
approximately (5) seconds within (24) hours of a continued pilot
ame ignition to perform a safety check. This allows the system to
verify correct safety functions.
• After the turn OFF sequence is completed, the IFC module will reexecute the latest command.
10.5 Backup Battery Operation
This appliance will operate on the backup battery pack when electric
power is interrupted, or in a power outage. The lifespan of the backup
batteries depend on various factors, such as the quality of the batteries,
number of ignitions, et cetera.
• When the backup battery pack is low, the IFC module will emit a
double-beep while receiving an ON/OFF command.
• No commands will be accepted after this alert until the back up
batteries are replaced.
• Once replaced, the IFC module will emit a ‘beep’ as soon as it is
powered.
SW1
BUTTON
LEDs
Figure 10.1, IFC Module
10.3 Reset the System for Manual Operation
1. Set the ON/OFF rocker switch to OFF position.
2. Press the red SWI button on the IFC module until it emits (3) beeps
and an amber LED is illuminated.
3. Within (5) seconds, press the red SWI button again. This will
close synchronization with the remote control. The pilot will
automatically light.
• Turn the main burner ON by setting the ON/OFF switch in ON
position. The main burner will only operate on HI.
• Turn the main burner OFF by setting the ON/OFF switch in the
OFF position. The pilot will remain lit even if burner is turned o,
provided CPI mode is turned on.
#CLW-72 R.1 April 2019 Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces OPERATING INSTRUCTIONS 47
10.6 IFC Module Ignition Sequence
The IFC module will try (2) times for ignition, each lasting
approximately (60) seconds, with approximately (35) seconds
between each attempt.
1. With the system in OFF position, press the remote control ON/OFF
key. Approximately (4) seconds after this key is depressed, the IFC
module will generate sparks to the pilot hood.
2. First ignition attempt will generate sparks for (60) seconds.
3. If there is no ame ignition (rectication) within the (60) second
time frame, the IFC module will stop generating sparks for
approximately (35) seconds.
4. After (35) seconds of wait time, the IFC module will generate
sparks for another (60) seconds for the second ignition attempt.
5. If there is no positive rectication after (60) seconds, the IFC
module will go into a lock out. The red LED will blink (3) times, in
intervals, until the system is reset.
10.6.1 Reset IFC Module after Lockout
10.6.1.1 ON/OFF Rocker Switch
1. Set the ON/OFF rocker switch to the OFF position.
2. After approximately (2) seconds, move the switch to the ON
position. The ignition sequence will start again.
10.6.1.2 Remote Control ON/OFF Key
1. Press the remote control ON/OFF key to turn the system OFF.
2. After approximately (2) seconds, press the ON/OFF key again. The
ignition sequence will start again.
10.6.1.3 Cycling Flame
1. Press the remote control down arrow key during ame adjustment
mode to reduce the ame to OFF (indicated by OFF displayed on
the LCD screen).
2. After approximately (2) seconds, press the up arrow key. The
ignition sequence will start again.
10.7 Additional Diagnostic Information
Low Battery Condition (<4V) Remote Control:
• Battery Icon will appear on LCD remote control display.
• Replace batteries.
Low Battery Condition (<4V) Battery Backup:
• The red LED Indicator will blink (1) time in intervals.
• A low double-beep emits from the IFC control module when it
receives an ON/OFF command from the remote control..
• Replace Batteries.
Pilot Flame Error Condition:
• Red LED Indicator will blink (2) times in intervals. Contact your
dealer if this occurs.
System Lock Out Condition:
• Red LED Indicator will blink (3) times in intervals.
• Verify gas is turned on.
• Verify sensor is not shorted.
• Follow Section 10.2 Initialize the Control System.
48 OPERATING INSTRUCTIONS Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces #CLW-72 R.1 April 2019
PROFLAME 2 TRANSMITTER
TRANSMISSION
LCD DISPLAY
KEY LOCK
LOW BATTERY ALARM
THERMOSTAT
BLUE BACK
LCD DISPLAY
ON/OFF KEY
THERMOSTAT KEY
UP/DOWN ARROWS
MODE KEY
OFF/ON/SMART
TEMPERATURE/LEVEL/STATE
FLAME ON
10.8 Remote Control Operation
10.8.1 Temperature Display
1. With the system in the OFF position, simultaneously press the
thermostat key and the mode key to change degrees from °F to
°C.
2. Visually check the LCD screen to verify either °F or °C is displayed
on the right side of the room temperature display.
ROOM
TEMPERATURE
CPI MODE
SET POINT
FAN
LIGHT ON
10.8.3 Pilot Ignition Selection (IPI/CPI)
This system has the option of a continuous (standing) pilot. This
features allows the system to change from a spark-to-pilot system
to the standing pilot option. The standing pilot will keep the rebox
warm and establish a draft in the vent, which allows the main burner
to ignite with less air-ow disruption.
When the system is OFF, the LCD screen will display the snowake icon
during the setup of either IPI or CPI mode. To select the preferred pilot
ignition feature,
1. With the system in the OFF position, press the mode key to index
the CPI mode icon.
2. Press the up arrow key to activate CPI.
3. Press the down arrow key to return to IPI. A single ‘beep’ will
conrm reception of the command.
When the system is ON,
IPI mode: LCD screen will not display the snowake icon
CPI mode: LCD screen will display the snowake icon
10.8.2 Key Lock
This function locks the keys to avoid unsupervised operation. Once
activated, a lock icon will appear on the LCD screen.
1. Simultaneously press the mode key and the up arrow key to
activate or deactivate this function.
#CLW-72 R.1 April 2019 Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces OPERATING INSTRUCTIONS 49
10.8.4 Turn ON the Appliance
1. With the system in the OFF position, press the remote control
ON/OFF key to turn ON the appliance.
A single ‘beep’ will emit from the IFC module to conrm
reception of the command.
The LCD screen will display all active icons, and the IFC module will
start the ignition sequence.
10.8.5 Turn OFF the appliance
1. With the system in the OFF position, press the remote control
ON/OFF key to turn ON the appliance.
A single ‘beep’ will emit from the IFC module to conrm
reception of the command.
The LCD screen will only display the room temperature and its icon,
and the IFC module will turn o the main burner.
10.8.6 Remote Control Flame Adjustment
This control system has (6) ame levels. If the smart thermostat
operation is activated, then the manual adjustment of the ame
height will be disabled.
1. Verify the system is in the ON position and the ame level is set
at maximum.
2. Press the down arrow key once to reduce ame height by one
level until the ame is turned o.
3. Press the up arrow key once to increase ame height by one
step. If the up arrow key is pressed while the system is on, but
the ame is o, the ame will ignite on HI.
4. A single ‘beep’ will conrm reception of the command.
10.8.7 Remote Control Thermostat Operation
10.8.7.1 Room Thermostat
The remote control can operate as a room thermostat. The thermostat
can be set to a desired temperature to control a room’s comfort level.
To activate this function,
1. Press the thermostat key. The LCD screen will display a
temperature bulb graphic, the room temperature and set
temperature.
2. To adjust the set temperature, press the up or down arrow keys
until the desired temperature is displayed on the LCD screen.
ROOM TEMPERATURE
SET TEMPERATURE
Flame Off
Flame Level 5 Flame Level Maximum
Flame Level 1
10.8.6.1 Deactivate Flame Modulation
1. Verify all (3) AAA batteries are installed in the remote control
battery bay.
2. Remove (1) AAA battery.
3. Press and hold the on/o key and the mode key at the same
time.
4. Reinsert (1) AAA battery.
5. While still holding the on/o key, let go of ONLY the mode key.
6. Index over to the ame graphic on the LCD screen to edit. Use
the up or down arrow key to choose ‘ON’ or ‘OFF’.
10.8.7.2 Smart Thermostat
The smart thermostat function will adjust the ame height based
on the set temperature and the actual room temperature. The smart
thermostat function automatically adjusts the ame down when the
room temperature reaches the set point. To activate this function,
1. Press the thermostat key until the ‘SMART’ appears on LCD
screen on the right side of the temperature bulb graphic.
2. To adjust the set temperature, press the up or down arrow keys
until the desired temperature is displayed on the LCD screen.
10.8.7.3 Deactivate Remote Control
Thermostat Operation
The thermostat operation function can be deactivated. The remote
control will still operate the main burner on and o, and function
ame, fan, and light modulation. To deactivate this function,
1. Verify all (3) AAA batteries are installed in the remote control.
2. Remove (1) AAA battery.
50 OPERATING INSTRUCTIONS Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces #CLW-72 R.1 April 2019
3. While reinserting the battery, push and hold the thermostat key.
The temperature bulb graphic will not be displayed on the LCD
screen.
4. To reactivate remote thermostat operation, follow the same key
sequence procedure above. The temperature bulb graphic will
reappear on the LCD screen.
10.8.8 Fan Speed Control (optional)
Fan speed can be adjusted through (6) speeds. To activate this
function,
1. Press the mode key to index to the fan control icon.
2. Press the up or down arrow keys to turn on, o, or to adjust fan
speed.
Thermostat mode: Fan(s) have a (5) minute delay time when the
replace is let. This allows time for heat to build in replace before
fan operation. The fan will continue to operate for approximately (12)
minutes after the replace has been turned o.
Manual mode: Fan(s) will operate at previous setting. There is no delay
in start up or stop time.
3. Press and hold the on/o key and the mode key at the same
time.
4. Reinsert (1) AAA battery.
5. While still holding the on/o key, let go of ONLY the mode key.
6. Index over to the bulb graphic on the LCD screen to edit. Use the
up or down arrow key to choose ‘SET’ or ‘CLR’.
10.8.10 Remote Control Low Battery Detection
Remote control battery lifespan depends on various factors including
battery quality, number of ignitions, changes to room thermostat set
point, etcetera.
• When the remote control battery are low, a battery icon will
appear on the LCD display before all battery power is lost.
• When the batteries are replaced, this icon will disappear.
10.8.9 Accent Light Kit (if applicable)
The light intensity can be adjusted through (6) levels.
1. Press the mode key to index to the light icon.
2. Press the up or down arrow keys to adjust the intensity level.
3. A single ‘beep’ will conrm reception of the command.
10.8.9.1 Deactivate Light Kit Modulation
1. Verify all (3) AAA batteries are installed in the remote control
battery bay.
2. Remove (1) AAA battery.
#CLW-72 R.1 April 2019 Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces OPERATING INSTRUCTIONS 51
11.0 ADJUSTMENT
11.1 Pressure Testing
NOTE: The appliance and its appliance main gas valve must be
disconnected from the gas supply piping system during any pressure
testing of the system at test pressures in excess of ½ psi (3.5 kPa).
IMPORTANT: Pressure check taps for manifold (outgoing) and inlet
(incoming) pressure have been incorporated into the valve. The
pressure tap marked OUT measures outgoing pressure. The pressure
tap marked IN measures incoming pressure.
11.1.1 Inlet Pressure Test
NOTE: Make sure to apply these incoming pressure test with all other
gas appliances on, or at full capacity in the house for proper pressure
reading.
IMPORTANT: If the inlet pressure reading is too high or too low, contact
the gas company. Only a qualied gas service technician should adjust
incoming gas pressure.
1. Loosen the inlet (IN) pressure tap by turning screw counterclockwise. See (A) in Figure 11.1.
2. Attach manometer using a ¼ in (6 mm) I.D. hose.
3. Light pilot and burner. Check pressure to ensure it is between
the minimum and maximum recommended pressure settings.
4. Turn o burner and pilot.
5. Disconnect hose and tighten the inlet (IN) pressure tap by
turning screw clockwise. Screw should be snug. Do not over
tighten.
6. Relight pilot and burner. Then reattach manometer to the
inlet pressure tap (A) to verify the tap is completely sealed.
Manometer should read no pressure.
11.1.2 Manifold Pressure Test
1. Light pilot.
2. Loosen manifold (OUT) pressure tap by turning screw counterclockwise. See (B) in Figure 11.1.
3. Attach manometer to pressure tap using a ¼ in (6 mm) I.D. hose.
4. Light burner. Check manometer reading.
5. Turn burner and pilot o.
6. Disconnect manometer hose and tighten the manifold (OUT)
pressure tap by turning screw clockwise. Screw should be snug.
Do not over tighten.
7. Attach the manometer to the manifold pressure tap (B) to verify
it is completely sealed. The manometer should read no pressure
when pilot and burner are on.
Table 11.1, Inlet Pressures
Fuel Natural Gas Propane
Gas Supply Min - Max Min - Max
Inlet Pressure
Tap (A)
Fuel Natural Gas Propane
Gas Supply Low - High Low - High
Manifold Pressure
Tap (B)
5” - 10.5” WC
(1.25 - 2.62 kPa)
Table 11.2, Manifold Pressure
1.1” - 3.8” WC
(.27 - .95 kPa)
12” - 13” WC
(2.99 - 3.24 kPa)
2.9” - 11” WC
(.72 - 2.74 kPa)
(B) MANIFOLD
TAP
PRESSURE TAP
Figure 11.1, Pressure Check Taps
52 ADJUSTMENT Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces #CLW-72 R.1 April 2019
(A) INLET PRESSURE
11.2 Burner Flame Adjustments
IDEAL
BURNER VENTURI
WARNING: To avoid property damage or personal injury, allow the
replace ample time to cool before making any adjustments.
Burner ame appearance and characteristics are aected by
altitude, fuel quality, venting conguration, and other factors. After
installation, this appliance may need additional adjustments to
achieve optimum ame appearance and visual aesthetics.
11.2.1 Burner Venturi
WARNING: VENTURI ADJUSTMENT MUST BE DONE BY A QUALIFIED
SERVICE TECHNICIAN.
NOTE: Burner venturi air shutter settings have been factory set. Refer
to Table 11.3.
When this appliance is rst lit, the burner ames will appear blue.
During the rst 15 minutes of operation, ame appearance will
gradually turn to the desired yellow appearance. If the ames remain
blue, or become dark orange with evidence of sooting (black tips),
adjustment of the air shutter opening may be necessary.
Regardless of venturi orientation, closing the air shutter will achieve a
desired yellow ame, but may produce soot on the glass. Opening the
air shutter will cause a short, blue ame that may lift o the burner.
Table 11.3, Factory Set Venturi Openings
Fuel Both Venturi Openings
Natural Gas 1/8” (3.175mm) open
Propane 3/8” (9.525mm) open
IMPORTANT: Slight adjustments to the venturi opening will create
dramatic results. Adjust at slight increments until desired look is
achieved. Always burn the replace insert for at least 15 minutes, and
allow the appliance ample time to cool before making any further
adjustments.
Table 11.4, Venturi Adjustment Guidelines
Flame Characteristic Cause Solution
Dark, orange ame
with black tips
Short, blue ames Venturi open too far Close setting slightly
Lifting (ghosting)
ames
Venturi closed too far Open venturi slightly
Gas pressure too high
Venturi closed too far
Check manometer
settings
Open venturi setting
slightly
LAZY, YELLOW FLAMES
11.2.1.1 Venturi Adjustment
NOTE: If soot is present on the glass, check glass media placement
before adjusting the venturi.
NOTE: Ensure the venturi on each inlet tube has the same opening of
measurement.
1. Remove the safety barrier, access cover, and glass frame
assembly.
2. Remove all media and pilot shield.
3. Remove the media tray and burner (8) screws total
4. Release the burner tube venturi o the burner orice.
5. Loosen screw on venturi and adjust as necessary. Re-tighten
screw.
6. Reinstall all components previously removed.
DARK, ORANGE FLAMES
WITH BLACK TIPS
SHORT, BLUE FLAMES
LIFTING (GHOSTING) FLAMES
Figure 11.3, Flame Appearance and Characteristics
Figure 11.2, Burner Venturis
#CLW-72 R.1 April 2019 Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces ADJUSTMENT 53
11.2.2 Vent Restriction (after installation)
WARNING: To avoid property damage or personal injury, allow the
replace ample time to cool before making any adjustments.
WARNING: Improper vent installation may cause the burner ames
to lift or “ghost.” Perform a visual check on ame appearance after
restriction adjustment to ensure proper performance.
Vertical terminations may display an active, compact ame. If this
appearance is not desirable, a restrictor plate may need to be installed
or modied after vent termination installation. Access to the vent exit
for restriction can be reached through the replace bae. Allow the
replace to burn for 15 minutes before making any adjustments.
RESTRICTOR PLATE
BEND TABS TO APPROX. 80˚ ANGLES TO CREATE
TENSION TO HOLD ITSELF IN PLACE WHEN INSTALLED
REMOVE INNER MOST CIRCLE
TO CREATE LESS RESTRICTION
REMOVE ALL INNER RINGS FOR
THE LEAST RESTRICTION
Table 11.5, Restrictor Plate Adjustment Guidelines
Flame Appearance Draft Problem Solution
Short, ickering Excessive draft
Not enough restriction
Lifting or ghosting* Insucient draft Remove inner ring(s)
*If ames continue to lift or ghost after opening the restrictor and
verifying correct vent installation, shut o the gas supply and call a
qualied service technician.
Add restrictor
on restrictor, or
Remove restrictor
11.2.2.1 Restrictor Plate Installation
1. Remove the safety barrier and the glass frame assembly.
2. Remove the cover plate in the center of the bae (4) screws.
3. Locate the 5 in (127 mm) exhaust pipe in the rebox ceiling.
4. Bend the tabs on the restrictor plate (included in components
packet) to approximately 80° angles. This will create tension
when the restrictor plate is inserted into the exhaust pipe.
5. Insert restrictor plate into the 5 in (102 mm) exhaust pipe with
the tabs pointing towards you.
6. Reinstall all components previously removed.
11.2.2.2 Restrictor Plate Modication
1. Remove the safety barrier, access cover, and the glass frame
assembly.
2. Remove the cover plate in the center of the bae (4) screws.
3. Remove the restrictor plate by pulling it down and out of the 5 in
(127 mm) exhaust pipe. Make necessary modications to achieve
desired ame appearance.
4. Insert restrictor plate into the 5 in (127 mm) exhaust pipe with
the tabs pointing towards you.
5. Reinstall all components previously removed.
REMOVE TERMINATION PANEL (4) SCREWS
INSERT RESTRICTOR INTO 5” (127mm) EXHAUST PIPE WITH THE TABS POINTING TOWARDS YOU
Figure 11.4, Vent Access and Restrictor Plate
54 ADJUSTMENT Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces #CLW-72 R.1 April 2019
12.0 TROUBLESHOOTING
ATTENTION: Troubleshooting must be performed by a qualied
technician.
Before proceeding with the steps in the following troubleshooting
guide,
• Verify proper 120VAC power supply to the control module.
• Verify the control module battery pack and the remote control
batteries are fresh and installed with correct polarity.
Issue Cause Solution
Pilot will not light
Pilot will not stay lit No propane in tank Check propane tank. Rell if necessary.
Electrical power interrupted or
disconnected
Wiring disconnection
Gas supply turned o
Low gas pressure Consult a plumber or a gas supplier.
• Verify all connections between the wire harnesses and the
system components are proper and positive.
• Verify the communication link is established between the remote
control and the IFC module.
• Verify inlet pressure meets the recommended inlet pressure. If
necessary, adjust line pressure regulator.
Restore electrical power to appliance or use battery back-up.
Ensure batteries are fully charged if using battery back-up as power
source.
Use wiring schematic in this manual to determine that all wiring
connections are secure and correct.
Check remote shut-o valves from the appliance. Usually there
is a valve near the main gas line. There may be more than (1) valve
between the appliance and main gas line.
Can be caused by situations such as a bent line, too narrow diameter
or pipe, or a low line pressure.
Pilot ame always on, or
will not extinguish
Main burner ame will not
light
Pilot ame not making contact
with the ame rectication
sensor on the pilot assembly
Pilot adjustment screw not sealed Seal pilot adjustment screw. Do not over-tighten.
Control system set to CPI mode Set control system to IPI mode.
ON/OFF rocker switch in OFF
position
Gas supply turned o Check for multiple shut-os in the supply line. Verify gas supply is
Low gas supply Consult with plumber or gas supplier.
Wiring disconnection or
improper wiring
Plugged main burner orice Remove blockage.
Pilot ame Verify the pilot ame is properly directed to ignite burner. See pilot
Remote control not working
properly
Verify the pilot ame envelopes the top of the ame sensor and
extends far enough onto burner for ignition.
To adjust pilot ame, turn pilot adjustment screw on the gas valve
clockwise to decrease ame, and counterclockwise to increase ame.
Switch rocker switch to ON position.
turned on.
Check propane tank. Rell if necessary.
Check for faulty or incorrect wiring.
ame troubleshooting above.
Replace batteries.
No call for heat
#CLW-72 R.1 April 2019 Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces TROUBLESHOOTING 55
Verify remote control is powered ON and thermostat operation is
turned OFF.
Issue Cause Solution
Pilot and burner extinguish
No propane in tank Check propane tank. Rell if necessary.
while in operation
Incorrect glass assembly
Refer to Section 8.1 Glass Frame Assembly on page 41.
installation
Incorrect vent cap installation Adjust if necessary.
Vent cap blockage Remove debris if necessary.
Improper pitch on horizontal
¼ in. (6 mm) rise per foot (30 cm) is required on horizontal venting
venting
Exhaust vent pipe leaking
Check for leaks and repair if necessary.
exhaust gases back into rebox
Excessive draft A restrictor may need to be installed or modied. Refer to Section
11.2.2 Vent Restriction (after installation) on page 54.
Soot appears on glass Improper media placement Refer to Section 8.2 Burner/Perimeter Media Installation on page 41.
Improper venturi setting Venturi air shutter may need to be opened slightly to allow more air
into the gas mix. Refer to Section 11.2.1 Burner Venturi on page 53.
Incorrect vent cap installation Adjust if necessary.
Vent cap blockage Remove debris if necessary.
Flame burns blue and lifts
o burner
Improper venturi setting Venturi air shutter may need to be opened slightly to allow more air
into the gas mix. Refer to Section 11.2.1 Burner Venturi on page 53.
Incorrect vent cap installation Adjust if necessary.
Blockage or leakage of the vent
system
No reaction to command Battery back batteries or remote
control batteries low
No communication between
remote control and IFC module
A maximum number of failed
ignitions or ame restorations
has been reached
Check the vent pipes for leaks, and the vent cap for debris. Repair the
vent pipes or remove debris from vent cap, if necessary.
Replace batteries.
Reprogram remote control to IFC module.
Reset IFC module.
56 TROUBLESHOOTING Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces #CLW-72 R.1 April 2019
13.0 MAINTENANCE
ATTENTION: Installation and repair should only done by a qualied
service person. The appliance should be inspected before use and at
least annually by a professional service person. More frequent cleaning
might be required due to excessive lint from carpeting, bedding
material, et cetera. It is imperative that control compartments, burners,
and circulating air passageways of the appliance be kept clean. Use a
vacuum to clean all components.
WARNING: The appliance area must be kept clear and free from
combustible materials, gasoline and other ammable vapors and
liquids.
13.1 Firebox
Performed by: Qualied Service Person
Frequency: Annually
Action:
• Vacuum and clean any debris in the rebox that is not supposed
to be there.
• Inspect and operate the bottom latch assembly. Verify the
assembly is free from obstruction to operate. The handles must
have spring tension but be able to move forward freely.
13.2 Fan (optional)
CAUTION: Label all wires prior to disconnection when servicing
controls. Wiring errors can cause improper and dangerous operation.
Verify proper operation after servicing.
Performed by: Qualied Service Person
Frequency: Every 6 months
Action:
• Disconnect the fan from electrical current and vacuum.
• The bearings are sealed and require no oiling.
13.3 Vent System
NOTE: If the vent-air intake system is disassembled for any reason,
reinstall per instructions provided with installation. Refer to Section
7.0 Venting on page 36.
Performed by: Qualied Service Person
Frequency: Annually
Action:
• Examination of the vent system is required.
• The ow of combustion and ventilation air must not be
obstructed.
13.4 Glass Assembly
CAUTION: Do not operate appliance with the glass assembly removed,
cracked, or broken. Use protective gloves to handle any broken or
damaged glass assembly components.
WARNING: Do not use substitute materials.
WARNING: Avoid striking or slamming glass assembly. Avoid abrasive
cleaner. DO NOT clean glass while it is hot.
IMPORTANT: Any safety screen, guard, or barrier removed for servicing
the appliance must be replaced prior to operating the appliance.
Performed by: Homeowner
Frequency: Annually
Action:
• Prepare a work area large enough to accommodate the glass
assembly on a at, stable surface.
• Remove safety screen and glass frame assembly.
• Clean glass window with a suitable replace glass cleaner using
a soft cloth. Abrasive cleaners must not be used. Be careful not to
scratch the glass when cleaning.
• Reinstall glass assembly and safety screen. Do not operate
replace without safety screen.
Performed by: Qualied Service Person
Frequency: Annually
Action:
• Clean glass window with a suitable replace glass cleaner using
a soft cloth. Abrasive cleaners must not be used. Be careful not to
scratch the glass when cleaning.
• Inspect the glass for cracks, scratches, and nicks.
• Verify the glass assembly is properly intact and not damaged.
• Replace the glass and the assembly #700-019T as necessary.
• Only Hussong Mfg. Co., Inc. will supply the replacement of glass
assembly as a complete unit.
#CLW-72 R.1 April 2019 Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces MAINTENANCE 57
13.5 Burner and Pilot System
The burner assembly may be removed for easier access to the control
compartment. Refer to Section 8.3 Control Board Removal and
Installation on page 42 for instructions. Verify gas supply is turned
on and lled. Consult with plumber or gas supplier as necessary.
Performed by: Qualied Service Person
Frequency: Annually
Action:
• Vacuum all components of the burner system.
• Check all accessible gas-carrying tubes, connections, pipes and
other components for leaks.
• Inspect the operation of the ame safety system Pilot or Flame
rectication device. Visually check pilot light when in operation.
• Inspect and ensure the lighting of the main burner occurs within
(4) seconds of the main gas valve opening. Check for faulty or
incorrect wiring and correct or replace as necessary. Inspect
primary air openings (burner ports) for blockage, especially near
the pilot.
• Visually check burner ame pattern when in operation. Flames
should be steady, not lifting or oating.
• Test and measure the ame failure response time of the ame
safety system. It must de-energize the safety shuto in no more
than (30) seconds.
IDEAL
LAZY, YELLOW FLAMES
Figure 13.2, Pilot and Burner Correct Flame Appearance
BURNER
ORIFICE
Figure 13.1, Burner System
58 MAINTENANCE Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces #CLW-72 R.1 April 2019
14.0 REPLACEMENT PARTS LIST
Replacement parts are available through your local dealer. Contact your local dealer for availability and pricing.
The following warning is for replacement parts for this appliance.
WARNING: This product can expose you to chemicals including Lead, which is [are] known to the State of California to cause cancer, birth
defects or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.
CLW-72 CONTROL BOARD AND PARTS
Control Board - Natural Gas CW72-170 Flexible PSE Pilot Tubing 700-081
Control Board - Propane CW72-171 Transmitter (Remote Control) 700-408
S.I.T. IPI Gas Valve - Natural Gas 700-567 Pilot Orice - Natural Gas #.023 NG 700-123
S.I.T. IPI Gas Valve - Propane 700-567-1 Pilot Orice - Propane #.014 LP 700-114
Proame 2 IFC Board 700-759 Valve Step Motor - Natural Gas 700-504
IFC Wire Harness Assembly 700-653 Valve Step Motor - Propane 700-504-1
Proame 2 IFC External Antenna 700-ANT 36 in. Flexible Gas Line - Black 700-236B
Main Line Wire Harness - 42 in. 700-350A 32 in. Flexible Gas Line - Valve to Burner Connection 700-232F
On/O Wire Harness 700-656 Natural Gas Burner Orice #42 700-242
Battery Back-up 700-756 Propane Burner Orice #1.45mm 700-2145
Power Vent Wire Harness 700-358 Conversion Kit - Natural Gas NCK-CW72-S
Fan/Light Kit Wire Harness 700-655 Conversion Kit - Propane LCK-CW72-S
Pilot Assembly - Natural Gas 900-064A Burner Tube CW72-035
Pilot Assembly - Propane 900-064A-1 Media Tray CW72-350
GLASS AND GLASS PARTS
73.750” x 16.775”- Glass with Gasket 701-033T
15.50’ Glass Gasket 900-007
Replacement Valance CW72-005
SAFETY BARRIERS
Safety Barrier Screen (only) CW72-ES
Hussong Manufacturing Co., Inc.
P.O. Box 577
204 Industrial Park Drive
Lakeeld, MN 56150-0577
USA
CLW-72
FAN KIT
Fan Assembly SL42-028
LIGHT KIT
Light Kit 600-TLK
20W 120V Halogen Bulb 600-676
ADDITIONAL COMPONENTS
5 in (127mm) Restrictor Plate 900-086
Manual Gas Shut-o Valve 700-203
Glass Latch Tool JOR-GLT
#CLW-72 R.1 April 2019 Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces REPLACEMENT PARTS LIST 59
LIMITED LIFETIME WARRANTY
Warranty Coverage
Hussong Manufacturing Company, Inc. (Hussong Mfg.) warrants this
Kozy Heat gas appliance from the date of purchase to the original
purchaser, that it is free of defects in materials and workmanship at
the time of manufacture. Registering your replace warranty does not
require any documents to be sent in to Hussong Mfg. Please retain
your proof of purchase reecting the date of purchase along with the
serial number and model of your replace for any future warranty
claims.
If a defect is noted within the warranty period, the customer should
contact their authorized dealer for service within 30 days.
30 Days: Parts & Labor*
• Paint
• Light bulbs
• Gasket material
• Glass media and media dam
Year 1: Parts & Labor*
• All parts and material except the items listed in the 30 day
warranty and any exclusions or limitations that may apply.
*Hussong Mfg. will issue labor reimbursement to an authorized dealer
only. Hussong Mfg. will not be liable for charges occurred as a result of
any service performed by a non-authorized service provider, without
pre-authorization.
Years 2 through Lifetime: Parts Only
• Firebox
• Heat Exchanger
• Logs
• Burner tube or pan
• Outer shell
• Heat shield(s)
• Front Viewing Glass (thermal shock only)
• Refractory Firebox liner (excluding enamel and glass panels)
EXCLUSIONS AND LIMITATIONS
1. This appliance must be installed by a licensed, authorized service technician or contractor. It must be installed, operated and maintained
at all times in accordance with the instructions in the owner’s manual or the warranty is void.
2. This warranty is nontransferable and is made to the original purchaser only.
3. This warranty excludes standard wear and tear of the appliance which is considered normal usage over time.
4. Discoloration and some minor expansion, contraction or movement of certain parts, resulting in noise, is normal and not a defect.
5. Warranty is automatically voided if the appliance’s serial number and/or testing label is removed or if the appliance is altered or
tampered with in any way.
6. Warranty is void if the appliance is subject to submersion in water or prolonged periods of dampness or condensation. Any damage
to any part of the appliance due to water or weather damage which is the result of, but not limited to, improper chimney/venting
installation will also render this warranty void.
7. This warranty does not cover installation and operational related problems such as environmental conditions, nearby trees, buildings,
hilltops, mountains, inadequate venting or ventilation, excessive osets, negative air pressures caused by any mechanical systems.
8. Chimney components and other Non-Hussong Mfg. accessories used in conjunction with the installation of this appliance are not
covered under this warranty.
9. Damage to plated surfaces or accessories, if applicable, caused by scratches, ngerprints, melted items or other external sources left on
the surfaces from the use of cleaners is not covered under this warranty.
10. It is expressly agreed and understood that this warranty is Hussong Mfg.’s sole obligation and purchaser’s exclusive remedy for defective
replace equipment. Hussong Mfg. is free of liability for any damages caused by this appliance, as well as inconvenience expenses
and materials. Incidental or consequential damages are not covered by this warranty. In some states, the exclusion of incidental or
consequential damage may not apply. Hussong Mfg. shall not be held to implied warranties and this warranty shall replace all previous
warranties.
11. This limited lifetime warranty is the only warranty supplied by Hussong Mfg. Any warranties extended to the purchaser by the dealer/
distributor, whether expressed or implied, are hereby disclaimed and the purchaser’s recourse is expressly limited to the warranties set
forth herein.
12. Any part repaired or replaced during the limited warranty period will be warranted under the terms of the limited warranty for a period
not to exceed the remaining term of the original limited warranty.
13. Any replacement part repaired after the warranty period will include a 90 day parts coverage
14. Hussong Mfg. may require the defective part to be returned using a pre-authorized RGA number or a photo of the defective component.
Failure to provide either can result in a denied claim.
15. This warranty does not cover the appliances ability to heat a desired space, as there are many factors that can impact the heating
performance in each home. Consideration should be implied to the appliance’s location, room size, home design, environmental
conditions, insulation, and tightness of the home.
16. Hussong Mfg. reserves the right to make changes at any time, without notice, in design, material, specications, and prices. Hussong
Mfg. reserves the right to discontinue models and products.
60 LIMITED LIFETIME WARRANTY
July 2018
Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces #CLW-72 R.1 April 2019
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