COZY 90N30A and User manual

GAS-FIRED VENTED
FLOOR FURNACE
Installation and Operating Instructions
ENGLISH
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Antes de la Instalación
Las Normas ............................................................. 2
Especicaciones ..................................................... 3
Introducción ........................................................... 3
Reglas de Seguridad ............................................... 4
Ventilation .......................................................... 4 - 5
Ubicación de la Estufa de Piso .......................... 5 - 6
Installation
Instalacion de la Estufa De Piso .............................. 7
Conexión de la Ventilación ................................. 7 - 9
Conexión de gas .............................................. 9 - 11
Instalación del Thermostat ..................................... 11
Alambrado .............................................................. 11
Mantenimiento
Instrucciones para el Encendido ........................... 12
Ajuste de la Llama del Piloto ................................ 13
Oricio del Quemador .......................................... 13
Ajuste del Quemador ..................................... 13 - 14
Para Limpiar Elquemador ...................................... 15
Registro de Servicio .............................................. 15
Tabla para la Solución de Problemas ............. 16 - 17
Piezas
Lista de Piezas:
90N30A / 90N50A / 90N65A .......................... 18 - 19
Garantía Limitada ................................................ 20
Before Installation
Standards ................................................................ 2
Specications .......................................................... 3
Introduction ............................................................ 3
Safety ...................................................................... 4
Venting ............................................................... 4 - 5
Location ............................................................ 5 - 6
Installation
Installing the Draft Hood .......................................... 7
Connecting the Vent ........................................... 7 - 9
Gas Connection ............................................... 9 - 11
Thermostat Installation ........................................... 11
Wiring ..................................................................... 11
Maintenance
Lighting Instructions .............................................. 12
Vent System .......................................................... 13
Burner Orice & Orice Chart ................................ 13
Adjusting the Burner ....................................... 13 - 14
Cleaning the Burner .............................................. 15
Service Records .................................................... 15
Troubleshooting Charts .................................. 16 - 17
Parts
Part List:
90N30A / 90N50A / 90N65A .......................... 18 - 19
Warranty .............................................................. 20

1017826-APage 1
—  Do not store or use gasoline or other ammable
vapors and liquids in the vicinity of this or any other
appliance.
— WHAT TO DO IF YOU SMELL GAS
•Donottrytolightanyappliance.
•Donottouchanyelectricalswitch;donotuseany
phoneinyourbuilding.
•Immediatelycallyourgassupplierfromaneighbor’s
phone.Followthegassupplier’sinstructions.
•Ifyoucannotreachyourgassupplier,callthere
department.
—  Installation and service must be performed by a
qualiedinstaller,serviceagencyorthegassupplier.
!WARNING:Iftheinformationinthese
instructionsisnotfollowedexactly,areor
explosionmayresultcausingpropertydamage,
personal injury or loss of life.
INSTALLER:Leavethismanualwiththeappliance.
CONSUMER:Retainthismanualforfuturereference.
GAS-FIRED VENTED
FLOOR FURNACE
Installation and Operating Instructions
Natural Gas - 90N30A, 90N50A, 90N65A Millivolt Control System
Cozy Heating Systems, LLC | cozyheaters.com | 855-589-5380 | 3230 Industrial Pkwy | Jeffersonville, IN 47130
dusty, wet, corrosive, or explosive conditions. Such conditions will invalidate the warranty and may create unsafe conditions.
WARNING: OPERATION OF THIS FURNACE WHEN NOT CONNECTED TO A PROPERLY INSTALLED AND MAINTAINED
VENTING SYSTEM CAN RESULT IN CARBON MONOXIDE (C.O.) POISONING AND POSSIBLE DEATH. FOR YOUR
SAFETY, THIS FURNACE AND THE VENTING SYSTEM SHOULD BE INSPECTED AT LEAST ANNUALLY BY A QUALIFIED
SERVICE TECHNICIAN.
- The coating selected to provide longer
life to the heat exchanger maysmoke
slightly upon initial firing. Please
provide adequate ventilation if this
occurs.
- Installation, maintenance, service,
troubleshooting & repairs must be
performed by a qualied service agency.
DO NOT attempt any of these procedures
if you are not qualied as this could
expose you to property damage, personal
injury, or loss of life and will invalidate all
warranties.
- This unit is for residential use only and is not
approved for installation in mobile homes,
greenhouses, or environments involving
90N

1017826-A Page 2
Before Installation
Standards ........................................... 2
Specications ..................................... 3
Introduction ........................................ 3
Safety ................................................. 4
Venting ........................................... 4 -5
Location ......................................... 5 -6
Installation
Installing the Draft Hood ..................... 7
Connecting the Vent ....................... 7 -9
Gas Connection ............................ 9 -11
Thermostat Installation ..................... 11
Wiring ............................................... 11
Maintenance
Lighting Instructions .......................... 12
Vent System ..................................... 13
Burner Orice & Orice Chart ........... 13
Adjusting the Burner ................... 13 -14
Cleaning the Burner .......................... 15
Service Records ............................... 15
Troubleshooting Charts ............... 16 -17
Parts
Part List:
90N30A / 90N50A / 90N65A ...... 18 - 19
Warranty ............................................. 20
CONTENTS
The State of Massachusetts requires that installation
andserviceofagasappliancebeperformedbya
plumberorgastterlicensedintheCommonwealthof
Massachusetts.
These installation instructions are a general guide and do not
supersede applicable local codes and ordinances. Before planning
or making the installation be sure it complies with all phases of the
local heating code. (Or, in the absence of local codes, with the latest
edition of National Fuel Gas Code, ANSI.Z223.1, or CAN1-B149).
The appliance, when installed, must be electrically grounded in
accordance with local codes, or in the absence of local codes, with
the latest edition of National Electrical Code ANSI / NFPA 70, or
Canadian Electrical Code CSA-C22.1.
All of the ANSI and NFPA standards referred to in these installation
instructions are the ones that were applicable at the time the design
of this appliance was certified.
The design of this appliance was certified to comply with the latest
edition of ANSI Z21.86 and CSA 2.32.
Installer must leave these instructions with the consumer, have
them complete, and return the warranty card.
READ CAREFULLY BEFORE INSTALLING UNIT
NFPA Standards:
NATIONAL FIRE PROTECTION
ASSOCIATION
1 Batterymarch Park
Quincy, Massachusetts | USA 02169-7471
ANSI & Canadian Standards:
CSA GROUP
178 Rexdale Boulevard,
Toronto, Ontario | Canada M9W 1R3

1017826-APage 3
Your oor furnace and drafthood are packed together in one master carton. The carton containing the oor furnace also
contains the thermostat, thermostat wire, insulated staples, furnace key and lighter rod. The drafthood is packed in its own
carton within the master pack and contains screws and rope-like gasket material for attaching and sealing the draft hood to
the oor furnace. Check the model numbers on the two cartons to be sure they match.
SPECIFICATIONS & DIMENSIONS
MODEL NUMBERS 90N30A 90N50A 90N65A
Gas Type Natural Natural Natural
Height 29-1/4” 29-1/4” 29-7/8”
Width 14” 22” 24”
Length 32” 32” 38”
Input (BTU / HR) 30,000 50,000 62,000
Gas Inlet 1/2” 1/2” 1/2”
Vent Size / Wall Opening 4” 4” 5”
Overall Grille Size 16” x 34-1/8” 24” x 34” 26” x 40”
Size of Floor Opening 14-1/4” x 32-1/4” 22-1/2” x 32-1/2” 24-1/2” x 38-1/2”
Floor to Center Line of Vent 22” 22” 22”
Approximate Weight 108 lbs 126 lbs 152 lbs
THIS IS A GAS-FIRED, GRAVITY VENTED FLOOR
FURNACE THAT WILL OPERATE SAFELY AND PROVIDE
AN EFFICIENT SOURCE OF HEAT WHEN INSTALLED,
OPERATED AND MAINTAINED AS RECOMMENDED IN
THESE INSTALLATIONAND OPERATING INSTRUCTIONS.
READ THESE INSTRUCTIONS THOROUGHLY BEFORE
INSTALLING, SERVICING, OR USING THE APPLIANCE.
IF YOU DO NOT UNDERSTAND ANY PART OF THESE
INSTRUCTIONS,CONSULTLOCALAUTHORITIES,OTHER
QUALIFIED INSTALLERS, SERVICE TECHNICIANS, THE
GAS SUPPLIER OR THE MANUFACTURER.
INTRODUCTION
HELPFUL INSTALLATION INFORMATION
Do not attempt to heat through more than one doorway in any
direction to adjoining rooms.
Always over-estimate the amount of heat required rather
than under-estimate it. Always use the next size oor furnace
above your actual heating requirements.
Seal all cracks around windows, doors, and attic access
doors or signicant heat loss will occur.
INSTALLATION REQUIREMENTS
Listed below are steps that are part of a oor furnace
installation. You must see that each step is followed closely
so that the oor furnace will provide maximum efciency with
safe operation.
YOU MUST:
1. Locate the oor furnace in the best available
space for safe and efcient operation.
2. Provide fresh air for combustion and venting.
3. Cut and frame the oor opening so that the
oor furnace ts properly.
4. Attach the draft hood and connect the vent
pipe in compliance with applicable codes.
5. Connect an adequate gas supply to the oor
furnace.
6. Select the best location for the thermostat.
7. Check and adjust the oor furnace for safe
and efcient operation.
If you have any doubts about the correct way to install a
oor furnace, contact local authorities or agency, or your gas
supplier. If local or state codes require that your oor furnace
installation be inspected by local authorities, do so after the
oor furnace is installed and before it is put into service.

1017826-A Page 4
SAFETY
VENTING
1) Seal any unused openings in the venting system.
2) Inspect the venting system for proper size and horizontal
pitch, as required in the National Fuel Gas Code, ANSI
Z223.1/NFPA 54 or the Natural Gas and Propane Installation
Code, CSA B149.1 and these instructions. Determine that
there is no blockage or restriction, leakage, corrosion and
other deciencies which could cause an unsafe condition.
3) As far as practical, close all building doors and windows
and all doors between the space in which the appliance(s)
connected to the venting system are located and other
spaces of the building.
4) Close replace dampers.
5) Turn on clothes dryers and any appliance not connected
to the venting system. Turn on any exhaust fans, such as
range hoods and bathroom exhausts, so they are operating
at maximum speed. Do not operate a summer exhaust fan.
6) Follow the lighting instructions. Place the appliance being
inspected into operation. Adjust the thermostat so appliance
is operating continuously.
7) Test for spillage from draft hood equipped appliances at
the draft hood relief opening after 5 minutes of main burner
operation. Use the ame of a match or candle.
8) If improper venting is observed during any of the above
tests, the venting system must be corrected in accordance
with the National Fuel Gas Code, ANSI Z223.1/NFPA 54
and/or Natural Gas and Propane Installation Code, CSA
B149.1.
9) After it has been determined that each appliance
connected to the venting system properly vents when tested
as outlined above, return doors, windows, exhaust fans,
replace dampers and any other gas-red burning appliance
to their previous conditions of use.
!WARNING: CARBON MONOXIDE POISONING HAZARD
Failuretofollowthestepsoutlinedbelowforeachapplianceconnectedtotheventingsystembeingplaced into
operationcouldresultincarbonmonoxidepoisoningordeath.
The following steps shall be followed for each appliance connected to the venting system being placed into operation, while
all other appliances connected to the venting system are not in operation:
1. WARNING: Improper installation, adjustment, alteration,
service or maintenance can cause property damage,
personal injury or loss of life. Installation and service must
be performed by a qualied installer, service agency or the
gas supplier keep burner and control compartment clean.
See installation and operating instructions accompanying
appliance. Due to high surface temperatures keep children,
clothing and furniture away.
2. Follow all applicable codes and ordinances. If there are none,
follow the installation standards, latest edition of NFPA54/
ANSI.Z223.1. A copy may be obtained from the National
Fire Protection Association, 1 Batterymarch Park; Quincy,
MA, 02269.
3. DO NOT install this oor furnace in a recreational vehicle,
trailer or mobile home.
4. DO NOT operate this oor furnace unless it is connected
to aproperly installed and maintained vent system. Do not
exhaust ue gases under the oor for any reason.
5. Be sure this oor furnace is equipped for the type gas you
intend to use.
6. Locate the thermostat in a room or space that cannot be
separated by adoor or other means from the room or space
in which the oor furnace grill is installed.
7. Never use a match, candle, ame or other source of ignition
to check for gas leaks. Use only soapy water or liquid
detergent.
8. Adequate air for combustion and venting must be provided.
9. If it is suspected that rising water or seepage may enter the
oor furnace, turn off the gas immediately. Do not use this
oor furnace if any part has been under water. Immediately
call a qualied service technician to inspect the oor furnace
and to replace any part of the control system and any gas
control which has been under water.
10. Have your oor furnace and vent system inspected before
using and at least annually by a qualied service technician.
11. The grill becomes hot when the oor furnace is in operation.
Children must be closely supervised when in the presence
of any heating appliance. Contact with bare skin may result
in severe burns. Keep children off the grill.
12. Before cleaning or servicing the oor furnace, turn off the
gas and allow it to cool. This will prevent burns.
13. Always leave the grill in place except when cleaning or
servicing the oor furnace.
14. Never operate the oor furnace without the sight glass
assembly in place, or with the glass broken or missing.

1017826-APage 5
Choose a central
location such as a
hallway but where
occupant trafc is
minimal & where
there is at least 18
inches of room from
two adjoining sides of
the grill to the nearest
wall so that occupants
may pass without
stepping on the grill.
See Figure 1.
Give consideration to available air for combustion, location in relation to chinmey or vent system, thermostat location, clearance
under oor, clearance to combustibles, and heat circulation. Any open foundation is unacceptable as wind can cause pilot outage and
reduced efciency. Keep furniture, drapes, doors, and other combustible materials at least 12 inches from the edge of the grill. Never
locate the oor furnace closer than 8 inches to a wall and never in a corner. See Figure 2.
FLOOR FURNACE LOCATION
FRESH AIR FOR COMBUSTION AND VENTING
FIG. 3
FLOOR
FURNACE
Floor
6” Minimum
JOISTJOIST
6” Minimum
Ground Level
Draft
Hood
Vent Pipe
Adequate air for combustion and venting must be provided. Any reduction in the necessary amount of fresh air can result in
an oxygen starved ame that emits Carbon Monoxide (C.O.) an odorless, colorless gas that can cause serious injury or death.
Two adjoining sides of the oor furnace must have a minimum
clearance of 18”. See Figure 1.
After selecting a location in the home, go beneath the oor
and check the position of the oor furnace in relation to joists,
supporting columns, electric wires, water pipes and walls. There
must be a minimum of 6 inches clearance between the top of
the draft hood and oor joists. There must also be at least 6
inches clearance between the bottom of the oor furnace and
the ground. See Figure 3.
In order to nd the location beneath the oor it may be necessary
to drill a 1/16 inch hole through the oor approximately in the
center of the selected oor furnace location to use as a reference
point when measuring under the oor.
FIG. 2FIG. 1
KitchenBathBedroom
Bedroom Living Room
18”Minimum
Thermostat
Vent Pipe
WALL
A ventilated crawl space will usually provide enough fresh air. However, you must
check to see that there is 1 square inch of free area of ventilation opening for each
1,000 BTU’s input of your oor furnace.
To compensate for the loss of square inches of ventilation due to the use of
louvers, grills, or screens add approximately 50% to the square inches calculated.
Screen all openings with mesh not less than 1/4 inch to prevent animals or insects
from entering the crawl space.
All type “B” vents shall ext end in a generally vertical direction with offsets not
exceeding 45 degrees, except that a vent system having not more than one 60
degree offset may be allowed.
Any angle greater than 45 degrees from the vertical is considered horizontal. The
total horizontal run of a vent plus the horizontal vent connector shall be not greater
than 75 percent of the vertical height of the vent.
Any offsets used should be as far above the drafthood as possible to allow a
venting action to begin before any restriction is encountered.
8” Minimum
Example 1:
Example 2:
If another gas burning appliance, such as a water heater, is
installed within the same crawl space or basement: Add the
B.T.U.’s of the other appliance to those of the floor furnace
before calculating the total ventilation needed.
50,000 BTU
Floor Furnace 50 Square
Inches
÷ 1,000 =
90
Square
Inches
÷ 1,000 =
50,000
BTU
Floor
Furnace
40,000
BTU
Water
Heater
+

1017826-A Page 6
CUTTING THE FLOOR OPENING
SETTING THE FLOOR FURNACE
Lay out the opening size on the oor by using masking
tape or cutting a piece of cardboard to the opening size.
The opening must be cut square. If you have determined
that there is nothing under the oor to interfere with
the installation, you are now ready to cut the opening.
Start by drilling \t2 inch holes inside the lines of each
comer. Use a keyhole saw or a properly grounded
saber saw to cut along the lines making sure to keep
the lines straight and the comers square. If the opening
dimensions are not correct, it may be difcult to t the
oor furnace into the opening. Forcing the oor furnace
through the opening may create stresses that cause the
oor furnace to be excessively noisy.
Lay aside the grill and package containing the thermostat, wires, etc., grasp two opposite sides of the outer casing and
lower the oor furnace gently through the opening. Support the furnace evenly by the ange at the top of the outer casing.
Trim back carpet, padding, and other types of oor covering so that the entire ange rests directly on the oor. If not evenly
supported on all four sides, stresses may be created that cause excessive expansion and contraction noises as the oor
furnace heats and cools. Anchor the oor furnace in place by driving two galvanized roofmg nails through each side of the
outer casing into the double headers approximately 1 inch below the ange. Place the grill into position making sure it lays
at against the outer casing ange. Leave the grill in place until time to light the furnace to keep occupants from falling into
the furnace.
FIG. 5
FLOOR
FURNACE
Floor
6” Minimum
JOISTJOIST
Ground
Level Draft
Hood
Vent Pipe
6” Minimum
12”
Min.
18”
Minimum
IF THE CLEARANCE BETWEEN THE BOTTOM OF THE
FLOOR FURNACE AND THE GROUND IS NOT ADEQUATE:
Dig a pit that will provide clearances of at least 6 inches under
the floor furnace, 18 inches on the end where the gas valve is
located and 12 inches on the other three sides. Slope the sides
of the pit to prevent dirt from caving into the pit.
If there is any possibility that water may accumulate in the
pit, a drain must be provided. If a drain cannot be provided,
fabricate a waterproof pan of at least 16 ounce per square foot
sheet copper or a suitable substitute. Size the pan to provide 6
inches clearance to the bottom of the floor furnace, 18 inches
on the side where the gas valve is located and 6 inches on the
other three sides. The sides of the pan must extend at least 4
inches above the ground. Anchor the pan to prevent it from
floating up against the bottom of the floor furnace when
water is present. Failure to do so may result in the pan
rising to seal off air for combustion and venting. If this
occurs, carbon monoxide (C.O.) a colorless, odorless gas
may be formed which can cause serious injury or death.
FIG. 4
FLOOR
FURNACE
OPENING
Joist
Double
Header
MOST INSTALLATIONS WILL
REQUIRE CUTTING A FLOOR JOIST
Cut the floor joist so that double headers of the same
size lumber can be used to frame around the floor
furnace. Double headers are necessary to maintain
the strength of the floor.
Consult the specication chart on Page 3 for the correct oor opening size for the oor furnace to be installed.
PIT PIT

1017826-APage 7
!
INSTALLING THE DRAFT HOOD
CONNECTING THE VENT
Refer to the specications on Page 3 for the correct vent pipe size. Familiarize yourself with local codes or contact authorities
to determine the approved material and method of installing the vent. NOTE: An existing vent that has worked for years may
not be adequate for todays design because of higher efciency requirements that result in lower stack temperatures.
The draft hood must be installed in the same atmospheric pressure zone as
the combustion air inlet. The draft hood is packed in its own carton within
the master pack. Make sure the draft hood received is the correct one for
the oor furnace being installed. Included in the carton are two rope-like
gaskets and 7 sheet metal screws. Begin by pressing the rope-like gasket
material into the groove provided around the two male vent outlets on the
oor furnace. See Figure 6.
Slip the two female couplings in the draft hood over the male outlets
extending through the outer casing, making sure the gaskets remain in
place. Press the draft hood tight against the casing and use the 7 sheet
metal screws to secure it tightly. All 7 screws must be used to prevent
leakage of vent gases. Neverinstalloroperateaoorfurnacewithout
adrafthood.Todosocouldresultinseriousinjury,propertydamage
or death.
FURNACE
CASING
DRAFT
HOOD
FIG. 6
Gasket
Material
Gasket
Material
1. Never reduce the vent pipe to a size smaller than the
outlet on the draft hood.
2. Never run pipe more than 15 feet horizontally.
3. The total horizontal run of a vent plus the horizontal
vent connector shall be not greater than 75% of the
vertical height of the vent.
4. Slope horizontal pipe upwards at least 1/4 inch per
lineal foot.
5. Do not use more than one elbow. An elbow restricts the
flow of vent gases by approximately 10%.
6. Use a noncombustible thimble when connecting vent
pipe to a masonry chimney.
7. Do not insert vent pipe farther than 1/4 inch into the
interior of the chimney.
8. Single wall pipe must not be used.
9. Never connect the vent pipe to any chimney or vent
system serving a solid fuel-burning appliance.
10. If another appliance is being vented through the vent
system with the floor furnace, the vent pipe must be
increased to compensate for the additional load.
11. Never install any kind of damper in the vent system.
12. Do not use transite or any other type of ceramic pipe
for venting.
Class “B” double wall pipe is acceptable to most codes, and if installed in accordance with the pipe manufacturers instructions
provides the safest and most efcient vent system. Class “B” pipe has an integral lock for securing sections together. These
locks must be properly tted together. Fasten pipe to draft hood using at least three self-tapping sheet metal screws at equal
intervals around the circumference of the pipe. Support horizontal pipe at three-foot intervals with metal strapping attached
to joists.
The oor furnace you have selected was carefully designed to operate both safely and efciently when vented with the proper
size vent listed for each furnace on Page 3. (Section continues on page 8)
WARNING: IMPROPER OR UNSAFE VENTING PRESENTS A HAZARD THAT MAY RESULT IN
PROPERTYDAMAGE,BODILYINJURYORLOSSOFLIFE.LISTEDBELOWARESOMEGUIDELINES
TO OBSERVE WHEN INSTALLING THE VENT SYSTEM.

1017826-A Page 8
CONNECTING THE VENT
...Continued from page 7.
We do not recommend doing so, but if you must vent into a masonry chimney, use the following instructions.
If the floor furnace is vented into a masonry chimney, the chimney must be inspected to determine that it is clear and free of
obstructions and that it is safe for the intended use. The inside ofthe chimney must be at least 6 inches in diameter or 6 inches
by 6 inches if rectangular. Insert the vent pipe into the chimney through a masonry or noncombustible corrosion-resistant thimble
of the correct diameter. Do not push the pipe farther than 1/4 inch into the inside of the chimney. See Figure 7A. Pushing the pipe
farther into the inside of the chimney may cause partial or complete blockage as illustrated in Figure 7B.
Even following these instructions you may still have a venting problem because of the larger area to be heated inside the
chimney. This could cause pilot outage, odors coming from the furnace, or noise due to excessive heat not being vented out of
the combustion chamber. If you experience any of these problems, we recommend running the proper size “B” type vent pipe
down the chimney and connecting to the horizontal run of vent pipe with a 90-degree elbow inside the chimney. See Fig. 7C.
Extend the vent system at least 3 feet above the point where it exits the roof and at least two feet higher than any part of the roof
system within 10 feet. Terminate with a listed or approved cap. See Figure 8.
FIG. 7A SAFE
FIG. 8
FIG. 7B UNSAFE FIG. 7C RECOMMENDED
1/4”
RIDGE
10’ OR
LESS
CHIMNEY
OR METAL
PIPE:
3’ MIN.
2’ MIN.
RIDGE
2’ MIN. CHIMNEY
OR METAL
PIPE:
3’ MIN.
10’
MORE THAN 10’

1017826-APage 9
FIG. 9
CONNECTING THE VENT
GAS SUPPLY AND PIPING
GAS PIPE SIZES - CAPACITY NATURAL GAS ○GAS TUBING AND PIPE SIZES - CAPACITY PROPANE GAS *
○Based on heating value of 1,000 value of 1,000 BTU per cubic
foot (specific gravity of 0.6) at 0.5 PSIG and a pressure drop
of 0.3 inch water column.
* Undiluted Liquefied Petroleum Gas at 11 inches water column inlet pressure.
Based on a pressure drop of 0.5 inches water column.
** Copper tubing must comply with limitations of NATIONAL FUEL GAS CODE
reference 2.6.3 metallic tubing.
*** Steel pipe should be of at least standard weight (Schedule 40).
The gas piping system must meet the requirements of local codes or the specifications of the servicing gas supplier. It must have
adequate capacity to supply the floor furnace and any other appliance within the home with enough gas to maintain the full rated
capacities without excessive pressure drop when all appliances are operating at full rate.
If more than one gas appliance is vented through a
common vent system, the vent should be increased
in size to accommodate the increased load. Consult
your local code or the tables in the latest edition
of NFPA54 / ANSI.Z223.1 for the correct size. If
no local codes apply, use the following alternate
method for sizing a vent connected to more than one
appliance. The effective area of the vent must be
not less than the area of the largest vent connection
plus 50 percent of the areas of additional draft hood
outlets.
The homeowner appreciates neatness in
workmanship and the neat installation usually
functions better than the sloppy one. Double check
your work to verify that all clearances around the
floor furnace and vent system are adequate and
that the vent system is installed to code or pipe
manufacturers specifications. See Figure 9.
7
6
3
3
25
Typical Installation Using
Class “B” Vent Pipe
4
1
1. Adequate clearances around oor furnace.
2. Draft Diverter 6” from combustibles.
3. Adequate clearances around vent pipe.
4. Horizontal vent pipe sloping upward 1/4” per foot.
5. Pipe supported with metal straps.
6. Adequate height of vent system.
7. Listed vent cap.
Nominal Steel Pipe Size Nominal Size of Tubing O.D.Spacing of Supports Spacing of Supports
1/2”
3/4” or 1”
1/2”
5/8” or 3/4”
6’
8’
4’
6’
Inside Pipe Diameter
Length
of Pipe -
Feet
10
20
30
40
50
60
1/2”
132,000
92,000
73,000
63,000
56,000
50,000
3/4”
278,000
190,000
152,000
130,000
115,000
105,000
1”
520,000
350,000
285,000
245,000
215,000
195,000
Capacity
BTU
Per Hr.
Input
Copper Tubing
Outside Diameter**
Steel Pipe
Inside Diameter***
Length
of Pipe /
Tubing Feet
10
20
30
40
50
60
1/2”
92,000
62,000
50,000
41,000
37,000
35,000
3/4”
329,000
216,000
181,000
145,000
131,000
121,000
1/2” 3/4”
275,000
189,000
152,000
129,000
114,000
103,000
567,000
393,000
315,000
267,000
237,000
217,000
Capacity
BTU
Per Hr.
Input
Support the piping or tubing at regular intervals with metal pipe strapping. See charts below.
• Where local conditions include earthquake, tornado, unstable ground or flood hazards, give special consideration to increased
strength and flexibility of piping supports and connections. Consult local authorities for recommendations.
• All unused openings in the piping system must be securely closed gas-tight.

1017826-A Page 10
CONNECTING THE GAS PIPING
FIG. 10
TO HEATER GAS
CONTROL VALVE
MANUAL CUT-OFF VALVE
DRIP LEG
1/8” NPT
PRESSURE TAP
GAS
SUPPLY
LINE
Refer to Figure 10 for the basic fittings
you will need at the furnace.
1. Use black iron or steel pipe and fittings or other pipe and
fittings that are approved by local codes.
2. Use pipe joint compound that is resistant to the action of
Propane Gas or to any other chemical constituents of the
gases to be conducted through the piping only on male
threads.
3. Use two wrenches when making the connection to the valve
to keep from bending the mounting bracket or manifold
pipe. Do not overtighten as damage to the valve can occur.
4. Provide a 1/8" nominal pipe thread (NPT) plugged tapping
for test gauge connection immediately upstream of the gas
supply connection to the floor furnace.
5. Provide a sediment trap at least 6 inches long to trap
dirt and moisture. Provide space to permit cleaning or
emptying.
6. Use a ground joint union.
7. Install an approved manual shut-off valve.
ADDITIONAL PROPANE GAS REQUIREMENTS
8. Have all connections made at the storage tank by a licensed Propane Gas installer.
9. Have Propane Installer check all lines, piping, and connections from the storage tank to the floor furnace when the floor
furnace is connected to the storage tank.
10. The regulator on the storage tank should be set at 11 inches water column.
CHECKING THE GAS PIPING
All joints must be tested for leaks by applying pressure to the piping system. If the test pressure is equal to or less than 1/2
PSIG the floor furnace must be isolated from the gas supply piping system by closing the manual gas shut-off valve on the floor
furnace. If the test pressure exceeds 1/2 PSIG, the floor furnace and its manual gas shut-offvalve must be disconnected from
the gas piping system before testing. Failuretodosomayresultindamagetothepressureregulatorinthegasvalve
resultinginoverfiring.Overfrringcanresultincombustionchamberfailure,propertydamage,bodilyinjuryordeath.
Use a mixture of soap and water or liquid detergent to check each joint. Leaks will be indicated by bubbles forming. Correct even
the smallest leak at once. Since some soaps may cause corrosion, or stress cracking, rinse the gas piping exterior with water
after testing to remove the soap.
!
WARNING:NEVERUSEAMATCH,CANDLE,OPENFLAMEOROTHERMETHODWHICHCOULD
PROVIDEASOURCEOFIGNITIONTOTESTFORLEAKS.TODOSOMAYRESULTINPROPERTYDAMAGE,
BODILYINJURYORDEATH.
CAUTION: Labelallwirespriortodisconnectionwhenservicingcontrols.Wiringerrorscancauseimproperand
dangerous operation. Verify proper operation after servicing.

1017826-APage 11
FIG. 12
CHECKING THE GAS PIPING - Continued
When you have determined that there are no leaks in the gas piping
system you may purge the system of air. Disconnect the pilot supply
tubing from the right side of the valve. See Figure 12.
Tum the knob on the gas valve to the pilot position. Press the knob
down and hold until you smell gas at the pilot supply opening. Release
the knob and tum it to the off position. Reconnect the pilot supply
tubing and check for leaks with soap and water or liquid detergent.
WARNING: When purging gas piping, the area around the oor
furnace must be well ventilated to allow any gas to dissipate. Liquid
Petroleum (Propane) Gas is heavier than air and may puddle in
low places under the oor. Check thoroughly to determine that no
gas is present before lighting the oor furnace. Failure to do so
could result in property damage, bodily injury or death.
Follow the instructions included with the thermostat. Locate the thermostat approximately five feet above the floor. Always
mount the thermostat on an inside wall where it won’t be affected by heat or cold sources such as direct sunlight, televisions,
fireplaces, hidden hot or cold water pipe, drafts, etc. The thermostat must never be installed in an adjoining room where a door
can be closed between the thermostat and floor furnace. This floor furnace is equipped with a self-generating control system.
Never connect to a 24-volt transformer or to the household electric system. Do not use more thermostat wire than is included
with the floor furnace.
Step 1. Connect black limit switch wire to black thermostat wire using wire nut. (Nut not furnished).
Step 2. Connect white thermostat wire to terminal on gas valve marked “TH TP”.
Step 3. Connect white limit switch wire to terminal on gas valve marked “TH”.
Step 4. Connect the thermostat wires to the thermostat following the instructions provided by the thermostat manufacturer.
FIG. 11
THERMOSTAT INSTALLATION
WIRE AS INDICATED: (See Figure 12)
Limit Switch
Wires
Pilot Supply
Tubing
Pressure Tap
Pilot
Adjustment
Thermostat
Thermostat
Powerpile
Generator
Terminal Block
TH
TH
TP
TP
Limit
Switches
Black
White White
Red
Limit Switch Wires
Wire Nut
Powerpile
Generator
Terminal Block On Gas Valve
TH TP
TPTH

1017826-A Page 12
LIGHTING INSTRUCTIONS
A. This appliance has a pilot which must be
lighted by hand. When lighting the pilot,
follow these instructions exactly.
B. BEFORE LIGHTING smell all 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. Follow the gas
supplier’s instructions.
FOR YOUR SAFETY READ BEFORE LIGHTING
• If you cannot reach your gas supplier, call
the re department.
C. Use only your hand to push in or turn the gas
control knob. Never use tools. If the knob
will not push in or tum by hand, don’t try to
repair it, call a qualied 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
qualied service technician to inspect the
appliance and to replace any part of the
control system and any gas control which
has been under water.
5. 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 information on the safety label.
If you don’t smell gas, go to the next step.
6. Remove the sight glass assembly from the opening on
top of the heat exchanger.
7. Locate the pilot burner looking down through the sight
glass opening.
8. Tum the control rod counterclockwise until the
pointer is on “PILOT.”
9.
Locate the red piezo igniter button beside the control rod.
WARNING:
If you do not
followthese
instructions
exactly,are
orexplosion
mayresult
causing
property
damage,
personal
injury or loss
of life.
LIGHTING INSTRUCTIONS
TURNING OFF GAS TO APPLIANCE
1. STOP! Read the information on the safety label.
2. Set thermostat to lowest setting.
3. Remove the oor grille.
4. Place the furnace key on the control rod, push down
slightly and turn clockwise to “ALL OFF.”
10. Press down on the control rod with the furnace key.
Immediately begin a series of pushing and releasing
the red piezo igniter while observing the pilot through
the sight glass opening, continue to spark until pilot is
lit or use the lighter rod with match. Continue to hold
the control rod down for about one (1) minute after the
pilot is lit. If it goes out, repeat steps 4 through 10.
• If control rod does not pop up when released, STOP &
immediately call your service technician or gas supplier.
• If the pilot will not stay lit after several tries, turn the
control rod to “OFF” and call your service technician or
gas supplier.
11. Replace the sight glass assembly and turn the control
rod counterclockwise to “BURNER” position.
Remove furnace key and replace the oor grille.
12. Set thermostat to desired temperature.
Pilot is
located on
the side of
and toward
control end
of bumer
NOTE:
Control rod
cannot be turned
from “PILOT” to
“ALL OFF” unless
the control rod
is pushed down
slightly.
Burner
All Off
Control
Rod
Pilot
Pilot
Burner
1. Set the thermostat to it’s lowest setting.
2. Allow oor grille to cool, then remove.
3. Place furnace key on control rod, push slightly and
tum clockwise to “ALL OFF.” Do not force.
4. Replace oor grille.

1017826-APage 13
FIG. 15
FIG. 13: Pilot Flame Adjustment
Pilot ame should envelop 3/8 to 1/2 inch of the
powerpile or thermocouple.
3/8 to 1/2 Inch
VENT SYSTEM
After the oor furnace has been burning for ve minutes, hold a match or candle under the draft hood at the air intake area. If
the vent system is working properly, the ame will be pulled into the air inlet of the draft hood. If the vent system is not working
properly, tum the oor furnace off immediately and refer to the installation instructions or local code for proper installation
procedure.
After the oor furnace has been burning 15 minutes, remove the bottom pan from the outer casing exposing the complete burner
assembly. Loosen the screw at the bottom side of the sliding air shutter. Slide the air shutter closed until yellow tips start to
appear at the top of the ame (See Figure 15).
Now open the shutter slightly beyond the point that the yellow disappears and the ame bums blue (See Figure 16). Airborne
dust particles may cause ashes or streaks of yellow ame as they are drawn into the ame but will have no effect on the
efciency of the oor furnace. If you are satised that the burner is properly adjusted, tighten the set screw to lock the shutter in
position. Replace the bottom pan. Check air shutter setting at least twice each season to assure that changing conditions are
not causing yellow tipping.
Refer to Figure 13 for the correct size pilot ame.
If adjustment is necessary, refer to Figure 11 for the location of the pilot
adjustment screw. Using a standard screwdriver, remove the pilot adjustment
screw cover. Insert a small screwdriver into the pilot adjustment screw and
tum clockwise to decrease the ame or counterclockwise to
increase the ame. If the ame is too low, the safety pilot may cause all of
the gas to be cut off.
NOTE: The gas supply to the pilot is unregulated. When line pressure exceeds
7” Natural Gas, or 11” Propane Gas, a pilot adjustment must be made.
BURNER ORIFICE
This appliance equipped only for altitudes 0- 2,000 feet. If installed above
2,000 feet, the BTU input must be reduced 4% per 1,000 feet. Orice change
must be completed by a qualied installer or service technician. See the
following orice chart for the proper orice for a specic elevation.
ADJUSTINGTHEPILOTFLAME
ADJUSTINGTHEBURNER
Order Kit #49800 44-1 High Altitude Kit
NATURAL GAS-(SPECIFICELEVATIONS)
90N30A
90N50A
90N65A
38
30
26
41
31
28
42
31
29
43
32
30
44
35
30
0 to
2,000’
Model
No.
4,000 -
6,000’
2,000 -
4,000’
6,000 -
8,000’
8,000 -
10,000’
Order Kit #49800 44-1 High Altitude Kit
PROPANE GAS-(SPECIFICELEVATIONS)
90P30A
90P50A
90P65A
1/16
47
43
53
49
44
53
49
45
54
50
47
54
51
48
0 to
2,000’
Model
No.
4,000 -
6,000’
2,000 -
4,000’
6,000 -
8,000’
8,000 -
10,000’
FIG. 14
Sliding Air Shutter Manifold
Tube
Set Screw
BURNER YELLOW
Improper Flame Adjustment
FIG. 16
Correct Flame Adjustment
BLUE

1017826-A Page 14
FIG. 17-A
FIG. 17-B
ADJUSTINGTHEBURNER - Continued
OPTIONAL OPERATION
If difficulty in adjusting the burner is experienced, it may be the result of incorrect gas supply pressure or manifold pressure.
Pressure can only be checked and adjusted by a trained service technician using instruments designed for that purpose.
Your floor furnace has been designed to meet all safety requirements of the American National Standards Institute and
government regulations by offering two modes of operation.
MINIMUM INLET PRESSURE
Natural Gas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.5 Inches Water Column
Propane Gas . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11.0 Inches Water Column
MAXIMUM INLET PRESSURE
Natural Gas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.0 Inches Water Column
Propane Gas . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14.0 Inches Water Column
(If the inlet pressure is found to exceed 14.0 inches water column, check the performance of the
control valve thoroughly as damage may have occurred. If manifold pressure cannot be adjusted,
replace the control valve).
MANIFOLD PRESSURE
Natural Gas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.5 Inches Water Column
Propane Gas . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10.0 Inches Water Column
!WARNING:
DO NOT ATTEMPT TO
CHANGE PRESSURE SETTINGS
WITHOUT PROPER TRAINING
AND INSTRUMENTS. TO DO
SO MAY CAUSE YOUR FLOOR
FURNACE TO MALFUNCTION
RESULTING IN PROPERTY
DAMAGE,BODILYINJURY,
OR DEATH.
THE FOLLOWING INFORMATION
IS PROVIDED FOR USE BY A
TRAINED SERVICE TECHNICIAN
WITH MEASURING INSTRUMENTS:
OPTION 1 - Place the furnace key on the damper control
rod (See Figure 17-A) & tum counterclockwise until
the warning flag is concealed and the damper is open.
Your floor furnace will now cycle on and off maintaining a
moderate grill temperature and an even room temperature.
Your floor furnace will function best on this setting during
mild weather.
OPTION 2 - Tum the furnace key clockwise until the warning
flag reading "WARNING - GRILL IS HOT - Keep off - can cause burns"
is visible and the damper is closed (See Figure 17-B). The limit control
will now cease to function and the floor furnace will now put out the
maximum amount of heat until the room temperature reaches the
thermostat setting. Use this option only in extremely cold weather. If
furnace continues to cycle on limits, assure that damper door is 100%
closed by adjusting damper door pin if necessary.
IN MILD WEATHER, OPERATE
FURNACE WITH DAMPER OPEN.
Furnace will
cycle on and off
maintaining a
moderate grill
temperature and
an even room
temperature.
IN EXTREMELY COLD WEATHER, CLOSE
DAMPER (Which Exposes the Warning Plate).
Furnace will then put
out maximum amount
of heat until room
temperature reaches
setting on wall
thermostat.
WARNING: Floorfurnacegrillsbecome
hotwhenfurnaceisinoperation.Contact
ofbareskinwithgrillmayresultinsevere
burns.Keepchildrenoff,providefenceor
register guard for their protection.
LIMIT SWITCH TEMPERATURE SETTINGS
90N30A / 90P30A ........................ 140°
90N50A / 90P50A ........................ 160°
90N65A / 90P65A ........................ 180°
!

1017826-APage 15
SERVICE RECORDS
TO CLEAN BURNER
1. Remove bottom pan from outer casing.
2. Remove 2 screws from burner support bracket.
3. Remove 2 screws from pilot bracket allowing burner to slide off of
manifold and out of oor furnace.
4. Examine the burner. If any distortion is noticed, replace burner.
5. Clean burner ports by inserting a toothpick in ports to remove any
debris that might have accumulated.
6. Inspect burner for spider webs or dust buildup during the off-season.
If necessary, wash out with garden hose.
7. Re-install and adjust burner.
!WARNING:
DO NOT USE ANY KIND OF SOLVENT OR
CLEANING FLUID TO CLEAN YOUR FLOOR
FURNACE. IT MAY LEAVE A RESIDUE OR
INVISIBLE COATING THAT WILL BURN OR
SMELL WHEN YOU TURN YOUR FLOOR
FURNACE ON. USE ONLY A DAMP CLOTH.
!WARNING:
THIS IS A GAS-FIRED FLOOR FURNACE.
KEEP THE AREA CLEAR OF GASOLINE
AND OTHER FLAMMABLE VAPOR AND
LIQUIDS. ALL COMBUSTIBLE MATERIAL
MUST BE KEPT CLEAR OF THIS AREA TO
AVOID FIRE OR EXPLOSION.
Repair service must be performed by a qualified
service technician. The floor furnace must be inspected
before initial use. An annual cleaning of floor furnace
and safety performance check should be made by a
qualified service technician. More frequent cleaning
may be required when exposed to the excessive lint
conditions due to carpeting and bedding material, etc.
It is imperative that the control compartment, burners,
and circulating air passageways of the floor furnace
be kept clean. Any safety screen or guard removed for
servicing the floor furnace must be replaced prior to
operating heater.
Examine the entire venting system as a routine part of
the safety performance check on an annual basis.
MAINTENANCE
CAUTION: Label all wires prior to disconnection when servicing
controls. Wiring errors can cause improper and dangerous operation.
For proper operation, Floor Furnace must be kept clean. At regular
intervals tum control valve to off, let cool, remove register and clean
dust and foreign material from jacket with vacuum cleaner.
Have the Floor Furnace checked by a qualied service technician for
venting system, pilot, and burner operation prior to its use each year.
Follow a regular service and maintenance schedule for safe and
efcient operation.
Keep ammable materials away from oor furnace area.
Be sure not to obstruct combustion and ventilation air.

1017826-A Page 16
Flame
Too Large
SYMPTOM POSSIBLE CAUSES CORRECTIVE ACTION
TROUBLESHOOTING CHART-(MainBurner)
FOR QUALIFIED SERVICE TECHNICIAN
1. Defective operator section of valve.
2. Burner orice too large.
3. If installed above 2,000 ft.
1. Replace complete valve.
2. Check with local gas company for proper orice size and replace.
3. See burner orice section, Page 13.
1. Too much primary air.
2. Noisy pilot.
3. Bun in orice
(if it whistles or resonates).
4. Excessive gas input.
1. Too little primary air.
2. Clogged main bumer ports.
3. Clogged draft hood.
4. Linted up air shutter.
1. Improper venting.
1. Blocked venting.
2. Insufcient primary air.
1. Main gas off.
2. Defective gas valve.
1. Pilot ame too small.
2. Burner ports clogged near pilot.
3. Low gas pressure.
4. Pilot decreases in size
when main bumers come on.
5. Air shutter open too far.
6. Drafts around appliance.
7. Bad venting.
Noisy
Flame
Yellow
TipFlame
(Some yellow
tipping on propane
gas is permissible)
Condensation
of Water Vapor
Floating
Flame
Failure
to Ignite
Delayed
Ignition
1. Adjust air shutter. See Page 13.
2. Reduce pilot gas with adjusting screw marked pilot on combination
gas control valve. See Page 13.
3. Remove bun or replace orice. (Do not enlarge orices).
4. See “Flame Too Large” section above.
1. Adjust air shutter. See page 13.
2. Clean main bumer ports. (Do not enlarge ports).
3. Clean draft hood.
4. Check for dust or lint at air mixer opening and around the shutter.
1. See “Venting.”
1. Clean ue passage ways to remove blockage.
2. Adjust air shutter to increase primary air supply.
1. Open all manual gas valves.
2. Replace gas valve.
1. Check pilot orice, close, increase pilot gas ow if necessary
by adjusting at combination control valve. See Page 13.
2. Clean burner ports (Do not enlarge pmts).
3. Check gas supply pressure.
4. Supply piping is inadequately sized. Consult local gas utility
or competent installer.
5. Close air shutter to proper setting as outlined in these instructions
(slight yellow tipping is allowable on Propane gas).
6. Eliminate drafts.
7. See “Venting”.
1. Chimney or vent obstruction.
2. Drafts around appliance.
3. Gas leak.
Gas
Odor
1. Defective or sticking automatic valve.
2. Excessive gas pressure
(The supply gas pressure must not
exceed 1/2 psi or 14” water column).
BurnerWon’t
TumOff
1. Clean or replace valve.
2. To conect this situation contact the utility supplying the gas.
1. Clean chimney or vent - replace if necessary.
2. Eliminate drafts.
3. See Page 1.
1. Too much primary air.
FlamePops
Back
1. Adjust air shutter. See Page 13.

1017826-APage 17
SYMPTOM POSSIBLE CAUSES CORRECTIVE ACTION
TROUBLESHOOTING CHART-(MainBurner)
FOR QUALIFIED SERVICE TECHNICIAN
SYMPTOM POSSIBLE CAUSES CORRECTIVE ACTION
TROUBLESHOOTING CHART-(AutomaticPilot&Valve)
1. Thermostat set too high.
2. Combination control valve sticks open.
1. Gas input not checked.
2. Clogged orice.
1. Appliance undersized
2. Thermostat set too low.
3. lncorrect supply pressure.
Too Much
Heat
lncorrect
Gas Input
Not Enough
Heat
1. Pilot ame too large or too small.
2. Dirt in pilot orice.
3. Defective automatic pilot section
in combination control valve.
4. Defective Thermocouple.
BurnerWon’t
TumOn
1. Readjust pilot ame using adjustment screw marked “Pilot” on
combination control valve. See Page 11.
2. Clean pilot mice with air or solvent, do not remn.
3. Replace entire combination control valve.
4. Replace thermocouple.
1. Lower setting of temp. dial.
See “Lighting and Shutting Down Instructions”.
2. Replace combination control valve.
1. Recheck gas input.
2. Check orice for clogging. If clogged, clean out the hole
carefully with a smooth wood toothpick. (DO NOT in any way
enlarge or distort it).
1. This is especially true when a dwelling or room is enlarged.
Have the heat loss calculated and compare to the appliance
output (70% of input). Your gas company or installer can supply
you with this infonnation. If appliance is undersized, replace with
correct size unit.
2. Setting of thermostat.
See “Lighting and Shutting Down Instructions.”
3. Check supply pressure as outlined above.

1017826-A Page 18
GAS FLOOR FURNACE PARTS LIST
Natural Gas: 90N30A NAT, 90N50A NAT & 90N65A NAT
NOTE: Parts & schematic drawings on current models are shown at: cozyheaters.com | Specications subject to change without notice.
BURNER ASSEMBLY
90N30A | 90N50A | 90N65A
26
21
4
3
1
5
7
10
11
9
17
16
1513
12
6
8
18
22
25
24
19
14
20
23
2

1017826-APage 19
GAS FLOOR FURNACE PARTS LIST
Natural Gas: 90N30ANAT, 90N50ANAT & 90N65ANAT
ATTN: Contractors and Qualified Service Technicians: We only sell parts through our wholesalers.
For prompt parts service, contact the wholesaler from which you purchased your Cozy heater.
NOTE: Parts & schematic drawings on current models are shown at: cozyheaters.com | Specications subject to change without notice.
PART DESCRIPTION
REF. #
1 Liner, Complete Assembly 23001 23980 24380
2 Limit Control 60T11 74306* 74307* 74308*
3 Heat Exchanger - (With gasket) 23074 24099 24499
4 Grille, Floor 23145 24175 24475
5 Casing, Complete Assembly 23040 24002 24402
6 Sight Glass Assembly - (Gasket not included) 23150 23150 23150
7 Valve Rod 24035 24035 24035
8 Drafthood Assembly - (With gasket) 23200 24075 24477
9 Washer, Valve Rod 24044 24044 24044
10 Key, Furnace 74205 74205 74205
11 Instruction Plate, Lighting 91256 91256 91256
12 Valve Rod Indicator Plate 24045 24045 24045
13 Thermostat, Millivolt 74592 74592 74592
14 Electrode 74350 74350 74350
15 Ignitor Wire 74351 74351 74351
16 Piezo Ignitor 80016 80016 80016
17 Disappearing Bushing - 1/4 x 3/8 74414 74414 74414
17&18 Valve, VS821A1061 - (Natural w/ 74414 bushing) 74315 74315 74315
19 Burner Support, Front 24036 24036 24036
20 Manifold 74416 74416 74416
21 Burner Orice - Natural Gas 74390 74406 74407
21 Burner Orice - Propane Gas 74609 74606 74607
22 Burner w/Pilot Bracket (+Air Adj.) 74401 74401 74401
23 Pilot Burner w/Orice - Q350Al271 Natural 74410 74410 74410
23 Pilot Burner w/Orice - Q350Al589 Propane 74415 74415 74415
24 Mounting Screws, Pilot - (2) 50107 50107 50107
25 Pilot Generator - Q313AIOI4 M.V. 23” 70098 70098 70098
26 Pilot Tubing - (With ttings) 74452 74452 74452
N/A Gasket, Heat Exchanger 74530 74530 74532
N/A Drafthood Gasket 23225 24077 24077
(With screws)
N/A Wire, Thermostat - 20’ 74518 74518 74518
N/A Staples, Thermostat Wire 74209 74209 74209
N/A Propane Conversion Kit 49200 49210 49220
N/A Burner Support, Rear 24430 24430 24430
N/A Warning Flag 24068 24068 24068
N/A Wiring Harness 74320 74321 74322
N/A Bottom Burner Cover 24039 24039 24431
HOW TO PROPERLY
ORDER PARTS:
In addition to the part description
and numbers, please be prepared
to provide:
- Model Number
- Serial Number
- Type of Gas Used
This information can be found on
the rating plate that is attached to
the heater.
90N30A 90N50A 90N65A
PART # PART # PART #
*Requires 2