COZY CDV142E User manual

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.
- 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:
• Open all windows.
• Do not try to light any appliance.
• Do not touch any electrical switch; do not use any phone or
cell phone in your building.
• Extinguish any open ame.
• Immediately call your gas supplier from a neighbor’s phone.
Follow the gas supplier’s instructions.
• If you cannot reach the gas supplier, call the re department.
– Installation and service must be performed by a qualied
installer, service agency or the gas supplier.
14,000 BTU/hr.
DIRECT VENT GRAVITY
WALL FURNACE
WARNING:This Direct-Vent furnace is approved for aftermarket
manufactured home installations (once the manufactured home is
sold, installed and stationary) unless prohibited by local codes.
Not for manufactured home manufacturer (factory) installation. Do
not install any of these furnaces (natural or propane gas)in trailers
or recreational vehicles.
WARNING: This product can expose you to chemicals
including epichlorohydrin which is known to the State of California
to cause cancer and birth defects and/or other reproductive harm.
For information go to www.p65warnings.ca.gov
WARNING: Improper installation, adjustment, alteration,
service or maintenance can cause injury or property damage.
Refer to this manual. For assistance or for additional information
consult a qualied installer or, service agency.
MODEL NUMBERS (natural gas)
CDV142E / CDV222E / CDV302E
MODEL NUMBERS (propane gas)
CDV141E / CDV221E / CDV301E
DISCONTINUED MODEL NUMBERS:
CDV155D / CDV156D / CDV255D
CDV256D / CDV305D / CDV306D
SAVE THIS MANUAL FOR FUTURE REFERENCE.
READ THIS OWNER’S MANUAL CAREFULLY BEFORE YOU
INSTALL YOUR NEW COZY WALL FURNACE.
250 West Laurel Street, Colton CA 92324 • www.cozyheaters.com • 1-888-444-1212
22,000 & 30,000 BTU/hr.
OWNER’S MANUAL
INSTALLATION INSTRUCTIONS
VISITE NUESTRA PÁGINA WEB PARA LA VERSIÓN EN ESPAÑOL DE ESTE MANUAL
https://www.cozyheaters.com/products

2
INSTALLATION RECORD
Model No. . Serial No.
Original Purchaser
Address
City and State Zip
Dealer
Address
City and State Zip
Installation Date Name Signature
(Dealer or authorized representative who certies that this appliance is installed in accordance with manufacturer’s instructions and local codes.)
WARRANTY
The manufacturer, Williams Furnace Co., warrants this wall furnace
or heater to the original purchaser under the following conditions:
ANY WARRANTY CONSIDERATIONS ARE
CONTINGENT ON INSTALLATION BY A
QUALIFIED INSTALLER (CONTRACTOR).
SELF-INSTALLATION IS PROHIBITED AND
WILL INVALIDATE YOUR WARRANTY.
LIMITED ONE-YEAR WARRANTY
1. Any part thereof which proves to be defective in material or
workmanship within one year from date of original purchase for
use will be replaced at the Manufacturer’s option, FOB to its factory.
2. No liability is assumed by the Manufacturer for removal or
installation labor costs, nor for freight or delivery charges.
LIMITED EXTENDED WARRANTY
1. In addition to the above limited one year warranty on the
complete unit, any combustion chamber which burns out or
rusts under normal installation, use and service conditions
during a period of nine years following expiration of the
one-year warranty period will be exchanged for a like or
functionally similar part.
2. No liability is assumed by the Manufacturer for removal or
installation labor costs, nor for freight or delivery charges.
LIMITATIONS
1. THIS LIMITED WARRANTY IS THE ONLY WARRANTY MADE
BY THE MANUFACTURER, IMPLIED WARRANTIES OF
MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR
PURPOSE ARE LIMITED TO THE SAME ONE
YEAR TERM AS THE EXPRESS WARRANTY. UNDER
NO CIRCUMSTANCES SHALL THE MANUFACTURER
BE LIABLE FOR INCIDENTAL, CONSEQUENTIAL,
SPECIAL OR CONTINGENT DAMAGES OR EXPENSES
ARISING DIRECTLY OR INDIRECTLY FROM ANY DEFECT
IN THE PRODUCT OR ANY COMPONENT OR FROM THE
USE THEREOF. THE REMEDIES SET FORTH HEREIN ARE
THE EXCLUSIVE REMEDIES AVAILABLE TO THE USER AND
ARE IN LIEU OF ALL OTHER REMEDIES.
Some states do not allow limitation on how long an implied
warranty lasts, and some states do not allow the exclusion or
limitation of incidental or consequential damages, so the above
limitations or exclusions may not apply to you.
2. This warranty does not include any charge for labor or installation.
3. This warranty does not extend to painted surfaces or to damage
or defects resulting from accident, alteration, misuses or abuse
or improper installation.
4. This warranty does not cover claims which do not involve
defective workmanship or materials.
DUTIES OF THE CONSUMER
1. The heating equipment must be installed by a qualied installer
and operated in accordance with the installation and
homeowner’s instructions furnished with the equipment.
2. Any travel, diagnostic costs, service labor, and labor to repair
the defective unit will be the responsibility of the owner.
3. A bill of sale, canceled check, payment record or permit should
be kept to verify purchase date to establish the warranty period.
4. Have the installer enter the requested information in the
space below.
GENERAL
1. The manufacturer neither assumes nor authorizes any person
to assume for it any other obligation or liability in connection
with said equipment.
2. Service under this warranty should be obtained by contacting
your dealer. Provide the dealer with the model number, serial
number, and purchase date verication.
3. If, within a reasonable time after contacting your dealer,
satisfactory service has not been received, contact: Customer
Service Department, 250 West Laurel Street, Colton, CA 92324
for assistance.
4. THIS WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS
AND YOU MAY ALSO HAVE OTHER RIGHTS WHICH VARY
FROM STATE TO STATE.

DIRECT VENT GRAVITY GAS WALL HEATER 3
YOUR COZY WARRANTY
INSTALLATION RECORD
TABLE OF CONTENTS
SAFETY RULES
INTRODUCTION
BASIC MATERIALS NEEDED
BASIC TOOLS NEEDED
OPTIONAL ACCESSORIES
INSTALLING YOUR WALL FURNACE
LOCATING YOUR WALL FURNACE
THERMOSTAT INSTALLATION
THERMOSTAT MOUNTING
CABINET INSTALLATION
GAS SUPPLY AND PIPING
ORIFICE SIZES
GAS PIPING
INSTALLATIONS IN THE STATE OF MASSACHUSETTS
OPERATING YOUR FURNACE
LIGHTING THE PILOT
OPERATING INSTRUCTIONS
TO TURN OFF GAS TO APPLIANCE
START-UP PROCEDURE
HOW TO CARE FOR YOUR FURNACE
BLOWER ACCESSORIES 2302 & 2303
FURNACE ASSEMBLY REPLACEMENT PARTS CDV14 MODELS
CONTROL ASSEMBLY REPLACEMENT PARTS CDV14 MODELS
BLOWER ACCESSORY 2303 FOR CDV14 MODELS REPLACEMENT PARTS
FURNACE ASSEMBLY REPLACEMENT PARTS CDV22 / CDV30 MODELS
CONTROL ASSEMBLY REPLACEMENT PARTS CDV22 / CDV30 MODELS
BLOWER ACCESSORY 2302 FOR CDV22 / CDV30 MODELS REPLACEMENT PARTS
TROUBLESHOOTING YOUR FURNACE
HINTS AND INFORMATION
SERVICE RECORD
CONTENTS
2
2
3
4
5
6
6
6
7
7
9
10
10
11
11
12
13
14
14
15
15
16
17
18
20
21
22
24
25
26
28
30
31

4
WARNING: READ THESE RULES AND THE
INSTRUCTIONS CAREFULLY. FAILURE TO FOLLOW
THESE RULES AND INSTRUCTIONS COULD CAUSE A
MALFUNCTION OF THE FURNACE. THIS COULD RESULT
IN DEATH, SERIOUS BODILY INJURY AND/OR PROPERTY
DAMAGE.
Installation must conform to local codes. In the absence of local
codes, installation must conform with the National Fuel Gas Code,
ANSI Z223.1. The appliance, when installed, must be electrically
connected and grounded in accordance with local codes or, in the
absence of local codes, with the current National Electrical Code
ANSI/NFPA NO. 70.
IN CANADA:
1. Installation must conform to local codes or, in the
absence of local codes, the current CAN/CGA B149
installation code.
2. The appliance, when installed, must be electrically connected
and grounded in accordance with local codes or, in the
absence of local codes, with the current CSA C22.1
Canadian Electrical code.
3. Reference is made in this manual regarding gas type
as propane gas Be advised that propane gas is not
available in Canada, refer to propane gas.
1. Use only manufacturer’s replacement parts. Use of any
other parts could cause injury or death.
2. DO NOT install this furnace where it could be isolated by
closing doors to the heated space.
3. DO NOT install this furnace in a travel trailer or
recreational vehicle.
4. MAINTAIN all clearances specied in section “Locating
Wall Furnace and Thermostat”.
5. BE SURE this furnace is for type of gas to be used. Check
the rating plate by the gas valve in the lower cabinet. Do
not change it to use other gases without the proper
manufacturer’s Gas Conversion Kit.
6. For natural gas, the minimum inlet gas supply pressure
for the purpose of input adjustment is 5" water column.
The maximum inlet gas supply pressure is 7" water column.
For propane gas, the minimum inlet gas supply pressure
for the purpose of input adjustment is 11" water column.
The maximum inlet gas supply pressure is 13" water column.
7. Any safety screen, guard or parts removed for servicing
this appliance must be replaced prior to operating the
appliance to avoid property damage, bodily injury or death.
8. Install the furnace vent directly to the outdoors so that
harmful combustible ue gases will not collect inside the
building. Follow the venting instructions for your type of
installation exactly. Use only the type and size of vent pipe
and ttings specied.
9. BE SURE to provide for adequate combustion and
ventilation air. The ow of this air to the furnace must not
be blocked.
10. NEVER vent ue gases into another room, a replace
or any space inside a building. This could cause property
damage, bodily injury or death.
11. Never test for gas teaks with an open ame. Use a soap
solution to check all gas connections. This will avoid the
possibility of re or explosion.
12. ALLOW the furnace to cool before servicing. Always shut
o󰀨 electricity and gas to furnace when working on it. This
will prevent any electrical shocks or burns.
13. DUE TO HIGH TEMPERATURES, locate the furnace out of
tra󰀩c and away from furniture and draperies.
14. ALERT children and adults to the hazards of high surface
temperatures and warn them to keep away to avoid burns
or clothing ignition.
15. CAREFULLY supervise young children when they are in
the same room with the furnace.
16. DO NOT place clothing or other ammable material on or
near furnace.
17. INSTALLATION and REPAIR must be done by a qualied
service person. The appliance should be inspected before
use and at least annually by a professional service person.
More frequent cleaning may be required due to excessive
lint from carpeting, bedding material, etc. It is imperative
that control compartments, burners and circulating
air passages be kept clean. Failure to keep burner-control
compartment and other parts of furnace clean can cause
dangerous conditions to develop which can cause injury
and even death.
18. BEFORE INSTALLING: To avoid electrical shock, tum o󰀨
electrical circuits that pass through the wall where you are
going to install the furnace.
19. BE AWARE of good safety practices by wearing personal
protective equipment such as gloves and safety glasses
to avoid being injured by sharp metal edges in or around
furnace and while cutting or drilling holes in wood and/or
sheet metal.
20. CAUTION: Label all wires prior to disconnection when
s ervicing controls. Wiring errors can cause improper and
dangerous operation. Verify proper operation
after servicing.
Always shut-o󰀨 electricity to furnace when working on it.
This will prevent any electrical shocks or burns.
21. DO NOT store or use gasoline or other ammable liquids
or vapors near the furnace.
SAFETY RULES
WARNING: Do not use this furnace if any part has been
under water. Immediately call a certied service technician
to inspect the furnace and to replace any part of the control
system and any gas control which has been under water.

DIRECT VENT GRAVITY GAS WALL HEATER 5
INTRODUCTION
Please read our instructions before you install and use your
furnace. This will help you obtain the full value from this furnace. It
will also help you avoid any needless service costs if the problem
is found within this instruction manual.
Always consult your local heating or plumbing inspector, building
department or electric utility company regarding regulations, codes
or ordinances which apply to the installation of a Direct-Vent Wall
Furnace.
BASIC DESCRIPTION
Your direct-vent wall furnace is shipped ready to install against an
exterior wall up to 9 inches thick. For walls greater than 9 inches,
and up to 24 inches thick, use an optional Vent Extension Kit.
The furnace may burn either Natural or propane gas, depending
on the model you have purchased.
No electric power is required unless furnace is equipped with an
optional blower accessory.
Always consult your local heating or plumbing inspector, building
department or gas utility company regarding regulations, codes or
ordinances which apply to the installation of a direct-vent furnace.
The sealed combustion system draws combustion air directly from
outdoors into the combustion chamber and combustion gases
are discharged directly outdoors through tubes on the rear of the
furnace.
The furnace cabinet is also constructed of heavy-gauge steel and
has a powder paint nish.
The furnace controls are located behind an access door on the
lower front of the furnace. All models are equipped with American
Gas Association and Canadian Gas Association (AGA/CGA) listed
gas valves and pilots.
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.
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:
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.

6
Materials Needed
- Pipe joint compound resistant to propane gases.
- Caulking compound-silicone rubber with a temperature
rating of 500°F.
- DO NOT use caulking advertised as paintable or for
bathtub use as most contain fillers and will not withstand
high temperatures.
- Pipe and fittings to make connections to the furnace.
- Electrical wiring supplied as needed for optional blower.
- Minimum wire size is #14 gauge copper.
Tools Needed
- Hand drill or properly grounded electric drill
- 6 ft. folding rule or tape measure
- Screwdrivers (Phillips Head)
- Pliers (wire cutting)
- Stud locator or small finishing nails.
- Tin snips
- 8 and 12 inch adjustable wrenches
- Keyhole or sabre saw
- (2) 10 inch or 12 inch pipe wrenches
- Gloves and safety glasses
Helpful Installation Information
The following booklets will help you in making the installation:
ANSI/NFPA 70, or current edition “National Electrical Code”.
In Canada: CSA C22.1 Canadian Electrical Code.
American National Standard Z223.1 or current edition of the “National
Fuel Gas Code.”
Obtain from the American National Standard Institute, Inc., 1430
Broadway, New York, NY 10018. In Canada, CAN/CGA B149.
Optional Accessories
Vent Extensions: For walls greater than 9 inches thick and up to 24
inches thick, use one of the following Vent Extension Kits:
KIT NUMBER WALL THICKNESS MODELS
9301 9 inches to 15 inches CDV22 / CDV30 Series
9302 15 inches to 24 inches CDV22 Series
9303 15 inches to 24 inches CDV14 / CDV30 Series
9304 9 inches to 15 inches CDV14 Series
BLOWER ACCESSORIES 2302 / 2303 – To increase circulation of
warmed air within the heated space, you may use Blower Accessory
Kit 2302, for model series CDV22 / CDV30 or Kit 2303 for model
series CDV14. Both are equipped with a two speed fan and an
automatic fan switch.
THIN WALL COLLAR KIT 9307 – For walls less than 4-1/2 inches
thick, a Thin Wall Collar Kit may be used to increase wall thickness.
VENT-CAP GUARD 9308 – This mounts to the outside of the
exterior wall over the vent cap, to protect pedestrian tra󰀩c from heat.
VENT SHIELD DEFLECTOR 4318 – Insulated, galvanized sheet
for all direct-vent models.
THERMOSTAT 74592
GAS CONVERSION KITS – Used to convert your furnace from
natural gas to propane gas and from propane gas to natural gas.
See page 12
INTRODUCTION

DIRECT VENT GRAVITY GAS WALL HEATER 7
INSTALLING YOUR FURNACE
Locating Your Wall Furnace
Consider the following points before attempting to install the
furnace.
ALL MODELS
1. This is a direct-vent wall furnace. It must be installed
on an outside wall for proper venting of ue gases.
Figure 1
2. Wall furnace must be surface mounted on an outside
wall up to 24-inches thick when using an optional Vent
Extension Kit.
3. Check the clearances needed from the furnace and
vent. Figure 1 and 2 You must place the furnace
where you will have no less than the clearances shown.
4. The outside vent must be at least 18-inches away from
any window or other building opening.
5. The furnace will not work if anything stops free entry
of fresh air into the vent, or free ow of ue gases from
it. Be sure the center of the vent cap is at least 12-inches
above ground level or shrubs. Figure 1 Make sure
shrubs are kept trimmed. It must also be at least
18-inches from any wall or other blockage and
30-inches below any overhang.
6. Place the furnace near the center of the space to be
heated for good air circulation. Do not put it behind a
door or draperies. Do not put it in a closet, alcove,
hallway or other conned space where the furnace
could be isolated by closing doors to the heated space.
7. Be sure that gas piping and electrical wiring (optional
blower only) can be brought to the furnace.
8. Select a location that will provide adequate
accessibility clearance for servicing and proper operation.
INTERIOR CLEARANCES (FIGURE 2)
CDV14 SERIES:
1. There must be at least 1-3/16 inches of space between
the oor (top of oor covering) and the bottom of cabinet.
2. The top of the furnace must be at least 24-inches from
the ceiling or other projecting overhang.
3. The side of the furnace must not be closer than
2-inches to an adjacent wall.
CDV22 / CDV30 SERIES:
1. There must be at least 5-1/2 inches of space between
the oor (top of oor covering) and the bottom of cabinet.
2. The top of the furnace must be at least 30-inches from
the ceiling or other projecting overhang.
3. The side of the furnace must not be closer than
2-inches to an adjacent wall.
Choose a location for the thermostat (optional) about 5-feet
above oor on an inside wall. The thermostat wire supplied
with your furnace is 20-feet long, which should be enough
to run up through the attic so the thermostat can be a
maximum of 16 feet from furnace measured in a straight line,
or approximately 12-feet from the furnace if the wire is run
under the oor. The thermostat should be sensing an
average room temperature; avoid the following:
HOT SPOTS
Concealed pipes/ducts
Fireplaces
Registers
TV sets
Radios
Lamps
Direct sunlight
Kitchen
After selecting a location that meets the requirements, inspect
the wall, oor and outside areas. Make sure there are no pipes,
wiring, or anything else that would interfere with furnace, vent or
thermostat installation. If required, move or pick a new location.
COLD SPOTS
Concealed pipes/ducts
Stairwells (drafts)
Doors (drafts)
Unheated rooms on other side of
the wall
DEAD SPOTS
Behind doors
Corners / alcoves
FIGURE 1
FIGURE 2
CDV14 SERIES
CDV22 SERIES
CDV30 SERIES

8
INSTALLING YOUR FURNACE
To avoid electrical shock, turn o󰀨 all electrical circuits that pass
through the wall where you are going to install the furnace.
This furnace must be installed using only the vent tube, air inlet tube
and vent cap assembly supplied by the manufacturer.
Before the furnace is installed, an opening must be cut through the
wall for the vent cap.
FIND THE STUDS
Find the studs where the furnace is to be placed. Use a stud locator
or small nishing nails. Drive a nail on the inside of the rst stud.
Drive a second nail on the outside of this stud.
The inside edge of the next stud should be about 14-1/2 inches from
the one found. Drive a nishing nail on the inside edge of this stud,
then another nail on the outside edge.
Using a level, draw vertical lines that will represent the two stud
center lines.
CUT VENT OPENING
After locating the studs, use the cardboard template Figure 4. Line
up the center of the stud lines on the template with the center lines
you have drawn on the wall. Use the template to draw the 9-1/4 inch
diameter circle on the wall. Then mark the location of the gas supply
line.
Using a window, door or wall corner for reference, measure to nd
where the vent will be on the outside wall. Check to be sure of the
proper clearances Figures 1 and 2. If necessary, relocate the furnace
for proper clearances.
Drill a 1/4 inch hole in the wall at the vent opening center mark all the
way through to the outside. Cut the 9-1/4 inch diameter hole through
the inside wall. Using the 1/4 inch hole as center, cut a matching hole
in the outside wall. It may be better to work from the outside when
breaking through brick, stone or tile.
Make sure the wall openings are aligned so vent tubes and vent will
t properly.
In new construction, frame in 9-1/4 inch x 9-1/4 inch opening
centered between the studs spaced 16 inches on centre and the
center point located as noted in Figure 3.
GAS AND ELECTRICAL SUPPLY OPENINGS
Holes must be drilled for the gas line (and electrical supply if you use
an optional blower kit). Drill a 1-1/2 inch hole in the wall for the gas
line where indicated on the cardboard template. Figure 4. You will
have to determine whether the gas line will enter the home through
the outside wall or the oor plate. These instructions can only guide
you to where the gas line will enter the furnace.
FIGURE 3
FIGURE 4
The gas line can be run at this time or after the furnace is mounted.
See Gas Supply and Piping section.
No electrical power is required unless furnace is equipped with an
optional blower kit.
Do not connect a 115V service line to the gas valve or wall
thermostat.
INSTALL SPACER PLATE (Figure 5)
Install the mounting spacer plate with spacers entering and centered
within the 9-1/4 inch vent opening in the wall. Level the top of the
spacer plate (embossed top) and fasten it to the interior wall using
the six (6) #8 roundheaded (long) screws provided.
1. CDV14 SERIES
2. CDV22 / CDV30 SERIES

DIRECT VENT GRAVITY GAS WALL HEATER 9
IMPORTANT: The vent tubes are factory equipped for walls
5 to 9 inches thick only. For wall thicknesses up to 24 inches,
follow the instructions packed with the appropriate factory Vent
Extension Kits.
FURNACE MOUNTING (Figure 5)
Set the furnace body against the wall, legs on the oor, with the vent
tubes extending through the spacer plate.
Fasten the furnace to the wall through holes at the top and bottom
of the support legs using the four (4) #3 round headed (long) screws
provided.
Push the air inlet shield on from the exterior side of the wall. Rotate
the air inlet shield until the notches on the end of the tube are
straddling the stando󰀨 tabs on the mounting spacer plate. Trim the
air inlet shield ush with the exterior of the wall. Never crimp the vent
tubes or force them to t.
NOTE: Do not trim ue extension or air inlet collar.
INSTALL VENT CAP
Outside, place a single strip of mastic (provided) around the back
ange of the vent cap. Figure 6 Install the vent cap by inserting it into
the air inlet tube and over the vent tube.
Important: The top of the vent cap is embossed “TOP”. Install
it in the correct position to prevent water from entering the wall.
Level the vent cap and attach it to the outside wall with four (4) #8
roundheaded (long) screws. Figure 6
If the wall surface is not at (shiplapped siding, etc.) or less than
5 inches thick, use a Thin Wall Collar Kit (9307) or, build up a at
surface with wood strips. Do not tilt or bend the cap to t uneven
surfaces. The vent cap ange must be tight against the wall to
prevent rain or wind penetration. Use standard caulking compound if
required (not provided).
For brick, masonry or plaster walls, it may be necessary to use lag
screws or expanding anchor bolts, which are not furnished with the
furnace.
When the vent cap is to be installed on vinyl siding, or a projection
within 6 inches of any side that could block the air inlet, the entire
vent should be supported away from the wall at least the distance of
the projection. A 2" x 4" frame, with outside dimensions that match
the overall dimensions of the mounting plate, is recommended. The
2" x 4" frame protects vinyl siding from possible damage. Seat and
paint all joints. The wall depth plus the additional 2" x 4" frame depth
should not exceed a total depth of 13 inches.
Thermostat Installation (Sold Separately)
WALL MOUNTING
1. Use Cozy’s thermostat 74592 or any millivolt thermostat.
2. If an existing thermostat is being replaced and is in a
satisfactory location and the wiring is in good condition,
use existing wiring. If in doubt, use new wiring.
3. If a new location is chosen or if this is a new installation,
the thermostat wire must rst be run to the location
selected. All wiring must agree with local codes and
ordinances. These instructions cover bringing the wire
down from the attic, but it can be run from a basement
or crawl space using similar methods.
FIGURE 5
FIGURE 6
4. Before drilling a hole in the wall at the selected location,
drive a small nishing nail through the ceiling in the
comer of the wall and ceiling above the thermostat
location. Pull the nail out and push a small sti󰀨 wire
through the hole so it can be found in the attic. Drill a
1/2-inch hole through the ceiling wall plate.
5. Probe for obstructions in the partition. Then, drill a
1/2 inch hole through the wall at the selected location for
the thermostat.
6. From the attic, feed the thermostat wire or a sti󰀨 wire
through the wall until even with thermostat location.
7. Snag the thermostat wire through the wall so that 6
inches of wire protrudes.
8. Route wire to the furnace leaving enough excess wire to
make the connections at the gas valve.
EXTERIOR WALL
WITH VENT CAP
TOP

10
CABINET MOUNTING
1. Locate the knockout on the right side of the furnace to mount
the thermostat. Remove the knockout by tapping it lightly
with a screwdriver.
2. Cut the thermostat wire to the required length below.
Model Number Length
CDV14 Series 31 inches
CDV22 Series 45 inches
CDV30 Series 47 inches
3. Connect the thermostat wires to terminal screws on the
front of the thermostat base. See instructions packaged
with thermostat.
4. Feed the thermostat wires through the knockout and to
he gas valve.
IMPORTANT: Keep the thermostat wire away from the
combustion chamber.
5. Mount the thermostat to the side of cabinet with the
screws provided. Replace the thermostat cover.
6. Connect the thermostat wire to the gas valve. Figure 9
IMPORTANT: BEFORE REMOVING THE FACE PANEL
DISCONNECT THERMOSTAT WIRES AT THE GAS VALVE.
Thermostat Mounting
1. To remove the thermostat cover, grasp cover and squeeze
both sides rmly, then lift to remove cover. Carefully
remove and discard the packing tab protecting the
switch contacts.
2. Connect thermostat wires to the terminal screws on the
front of thermostat base.
3. Push any excess wire back through hole in the wall and
plug the hole with insulation to prevent drafts from
a󰀨ecting thermostat operation.
4. Being sure to level thermostat for the best appearance.
Fasten the thermostat base to the wall through the
mounting holes with the screws provided.
5. Replace the thermostat cover.
NOTE: Refer to the installation instructions packed in the thermostat
carton if you have any doubt about the above procedures.
FIGURE 9
SQUEEZE FIRMLY
BOTH SIDES AND
LIFT TO REMOVE
COVER
Cabinet Installation
CDV14 SERIES:
Set the cabinet over the furnace body, dropping the rear top ange
between the support legs and wall. Open the cabinet door and attach
the cabinet to the inner casing with two (2) sheet metal screws.
Figure 10
CDV22 / CDV30 SERIES:
Set the cabinet over the furnace body, dropping the rear top ange
into the slot in top of the spacer plate and into the slots between
the support legs and wall. When correctly positioned side-to-side,
a dimple on the rear top ange will slide against the inside of each
support leg. Attach two (2) tension springs through the bottom ange
of the combustion chamber and the bottom of the cabinet. Fasten the
trim strip to the bottom of the support legs using two (2) sheet metal
(short) screws. Figure 11

DIRECT VENT GRAVITY GAS WALL HEATER 11
Gas Supply and Piping
The gas control valve is shipped with a sealed cover over the gas
inlet tapping. Do not remove seal until you are ready to connect
piping.
WARNING: Danger of property damage, bodily injury or
death. Make sure the furnace is equipped to operate on the
type of gas available. Models designated as natural gas are
to be used with natural gas only. Furnaces designated for
use with propane gas have orices sized for commercially
pure propane gas. They cannot be used with butane or a
mixture of butane and propane.
GAS SUPPLY
Minimum gas supply pressure for natural gas to the furnace control
valve is 5 inches water column and must not be more than 7 inches
water column.
Minimum gas supply pressure for propane gas to the furnace control
valve must be at least 11 inches water column and must not exceed
13 inches water column.
Gas pressures and pressures to the burners must not exceed the
rated input and pressure shown on the rating plate. For natural
gas, the manifold pressure should be 4 inches water column. The
manifold pressure should be 10 inches water column for propane
gas. An orice change may be required to suit the gas supplied.
Orice Sizes
The e󰀩ciency rating of these appliances is a product thermal
e󰀩ciency rating determined under continuous operating
conditions and determined independently of any installed system.
For elevations above 2,000 feet reduce ratings 4% for each 1,000
feet above sea level.
The correct orice sizes for the di󰀨erent input ratings when using
natural or propane gas are:
FIGURE 10
FIGURE 11
CAPACITY AND ORIFICE SIZING
MODEL
NUMBER
GAS
TYPE
INPUT
RATING
BUT/hr.
HEATING
CAPACITY
RATING
BUT/hr.
MAIN BURNER ORIFICE
DRILL DEC QTY
CDV14 NATURAL 14,000 9,800 #50 .0700 1
CDV14 PROPANE 14,000 9,800 #56 .0460 1
CDV22 NATURAL 22,000 16,210 #44 .0860 1
CDV22 PROPANE 22,000 16,210 N/A .0560 1
CDV30 NATURAL 30,000 21,000 #39 .0990 1
CDV30 PROPANE 30,000 21,000 N/A .0640 1

12
INSTALLING YOUR FURNACE
Gas Piping
The gas supply line must be of an adequate size to handle the BTU/hr.
requirements and length of the run for the unit being installed.
Determine the minimum pipe size from Figure 14, basing the length of
the run from the gas meter or source to the unit.
All piping must comply with local codes and ordinances or with the
National Fuel Gas Code (ANSI Z223.1 NFPA No. 54), whichever
applies. (In Canada: CAN/C.G.A B149). Refer to Figure 12 for the
general layout of the unit. It shows the basic ttings needed.
1. Use new, properly reamed pipe free from chips such as
steel or black iron pipe and ttings that are approved by
local codes. Metal chips and debris can damage the
gas valve.
2. Do not thread the pipe too far. Distortion or malfunction
may result from excess pipe within the control valve. Apply
a moderate amount of good quality dope to the pipe
threads only. Leave the two end threads bare. Figure 13
On propane gas installations, use a compound resistant
to action of liqueed petroleum gases.
3. Use ground joint unions.
4. Install a drip leg (sediment trap) to trap dirt and moisture
before it can enter the gas valve. The nipple must be a
minimum of 3-inches long.
5. Install a manual shuto󰀨 valve.
6. Provide a 1/8" NPT test gauge connection immediately
before the gas supply connection to the furnace.
GAS CONNECTION
If installation is for propane gas, use a two-stage regulator and make
all connections from the storage the tank to furnace.
Use two pipe wrenches when making the connection to the valve to
prevent turning and/or damage to the gas valve.
The connection between the shuto󰀨 valve and the burner control
assembly can be made with an A.G.A / C.G.A. design certied
exible connector if allowed by local codes.
Tighten all joints securely.
GAS CONVERSION KITS
DESCRIPTION MODELS
NATURAL GAS TO PROPANE GAS FOR CDV14 SERIES 8939
NATURAL GAS TO PROPANE GAS FOR CDV22 SERIES 8940
NATURAL GAS TO PROPANE GAS FOR CDV30 SERIES 8941
PROPANE GAS TO NATURAL GAS FOR CDB14 SERIES 8942
PROPANE GAS TO NATURAL GAS FOR CDB22 SERIES 8943
PROPANE GAS TO NATURAL GAS FOR CDB30 SERIES 8944
FIGURE 12
PROPER PIPE
THREADING
INCORRECT
THREADING
2 THREADS EXPOSED
SEALANT THIN
ENOUGH TO SHOW
THREADS
OVER-THREADED
SEALANT
TOO THICK
SEALANT
PAST TIP
DAMAGED
THREADS
FIGURE 13

DIRECT VENT GRAVITY GAS WALL HEATER 13
CHECKING THE GAS PIPING
Test all piping for leaks. When checking gas piping to the furnace
with gas pressure at less than 1/2 PSI, shut o󰀨 manual gas
valve to the furnace. If the gas piping is to be checked with the
pressure at or above 1/2 PSI, the furnace and manual shuto󰀨
valve must be disconnected during testing. Apply a soap solution
(or a liquid detergent) to each joint. Bubbles forming indicate a
leak. Correct even the slightest leak at once.
WARNING: Danger of property damage, bodily
injury or death. Never use a match or open ame to test for
leaks. Never exceed specied pressures for testing. Higher
pressures may damage the gas valve and cause over ring
which may result in combustion chamber failure. Liqueed
petroleum gas (PRPN GAS) is heavier than air and it will
settle in any low area, including open depressions and it
will remain there unless area is ventilated. Never attempt
start-up of the unit before thoroughly ventilating the area and
smelling near the oor for gas odor.
When an existing category I heater is removed or replaced, the
original venting system may no longer be sized to properly vent
the attached appliances
All installations in the State of Massachusetts must use
the following requirements when installing, maintaining or
operating direct-vent propane or natural gas-red space heaters.
For direct-vent appliances, mechanical-vent heating appliances
or domestic hot water equipment, where the bottom of the vent
terminal and the air intake is installed below four feet above
grade the following requirements must be satised:
1. If there is not one already present, on each oor level
where there are bedroom(s), a carbon monoxide
detector and alarm shall be placed in the living area
outside the bedroom(s). The carbon monoxide detector
shall comply with NFPA 720 (2005 Edition).
2. A carbon monoxide detector shall be located in the
room that houses the appliance or equipment
and shall:
a. Be powered by the same electrical circuit as the
appliance or equipment such that only one service
switch services both the appliance and the carbon
monoxide detector.
b. Have battery back-up power;
c. Meet ANSI/UL 2034 Standards and comply with NFPA
720 (2005 Edition); and
d. Have been approved and listed by a Nationally
Recognized Testing Laboratory as recognized under
527 CMR.
INSTALLATIONS IN THE STATE
OF MASSACHUSETTS
A CARBON MONOXIDE DETECTOR SHALL:
a. Be located in the room that houses the appliance
or equipment;
b. Be either hard-wired or battery powered or both; and
c. Shall comply with NFPA 720 (2005 Edition).
3. A product-approved vent terminal must be used, and if
applicable, a product-approved air intake must be
used. Installation shall be in strict compliance with the
manufacturer’s instructions. A copy of the installation
instructions shall remain with the appliance or
equipment at the completion of the installation.
4. A metal or plastic identication plate shall be mounted
at the exterior of the building, four feet directly above
the location of vent terminal. The plate shall be of
su󰀩cient size to be easily read from a distance of eight
feet away, and read “Gas Vent Directly Below”.
FIGURE 14
GAS PIPE SIZES
NATURAL GAS PIPE CAPACITY - BTU/hr. (includes ttings) PIPE SIZE
LENGTH OF PIPE - FT. 1/2" 3/4" 1"
20 92,000 190,000 350,000
40 63,000 130,000 245,000
60 50,000 105,000 195,000
PROPANE GAS PIPE CAPACITY - BTU/hr. (includes ttings) PIPE SIZE
LENGTH OF PIPE - FT. 1/2" 3/4" 1"
20 189,000 393,000 732,000
40 129,000 267,000 504,000
60 103,000 217,000 409,000

14
OPERATING YOUR FURNACE
The furnace operates in the
following sequence:
1. The thermostat turns on the main burner.
2. Heat builds up in the furnace and starts the fan (if
equipped). The heated air comes out the panel louvers.
3. When the thermostat setting is reached, it shuts o󰀨 the
main burner.
4. The fan runs until the heat is removed from the furnace,
then it turns o󰀨.
Your furnace is equipped with a built-in pressure regulator. propane
gas models also have a regulator at the supply tank. If you have a
question regarding the amount of fuel consumed, call your local gas
utility or gas supplier.
WARNING: DO NOT TAMPER WITH THE REGULATOR
OR BURNER ORIFICES, AS PROBLEMS RESULTING FROM
THERE MAY CAUSE PRODUCT FAILURE NOT COVERED
BY WARRANTY.
Input and output ratings shown on the rating plate, located in burner
compartment, must not be exceeded.
IMPORTANT: KEEP BURNER AND CONTROL
COMPARTMENT CLEAN.
WARNING: Do not store or use gasoline or other
ammable liquids or vapors near the furnace.
WARNING: Danger of bodily injury or death. Do not operate
the furnace with a broken or missing pilot observation door.
Lighting the Pilot
FOR YOUR SAFETY, READ BEFORE LIGHTING
This furnace is equipped with a manually operated piezo spark
ignition device to ignite the pilot gas. Follow the steps below and use
the manual spark igniter to light the pilot in place of a match. Press
spark igniter button repeatedly and vigorously. If the spark igniter
fails to provide spark to light the pilot, loosen the wing nut holding the
pilot cover. This opens to the combustion chamber. The pilot may be
ignited with a match.
1. Follow the instructions below and use a match to light
the pilot as instructed.
2. After lighting the pilot, carefully replace the pilot
observation door and tighten wing nut down.
On new installations, the gas lines will be lled with air and it may
take several tries to establish the pilot ame. Check the manual
shuto󰀨 valve in the gas line. It must be in the open position (handle
parallel to the gas line) before you can light your furnace. Your
furnace is equipped with a 100% safety pilot, which will shut o󰀨 the
gas valve in case the pilot is not burning or functioning properly.
Make sure the pilot is adjusted properly and that the generator
connection at the control valve is tight. If furnace will not stay lit, call
your local gas utility company.
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 has a pilot which must be lit by hand.
When lighting the pilot, follow these instructions exactly.
B. BEFORE LIGHTING smell around the appliance area for
gas. Be sure to smell next to the oor because some
gases are heavier than air and will settle on the oor.
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 turn by hand, do not 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.
WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
• Do not touch any electric switch. Do not use any
telephone or cell phone in your building.
• Immediately call your gas supplier from a
neighbour’s phone. Follow the gas
supplier’s instructions.
• If you cannot reach your gas supplier call the re
department.
IMPORTANT: KEEP BURNER AND CONTROL
COMPARTMENT CLEAN.
Read owner’s manual before using/install. Be sure CHAINED
LIGHTING INSTRUCTION TAG hangs at the lowest position
in the furnace under/below the heat shield.
LIGHTING
INSTRUCTIONS TAG

DIRECT VENT GRAVITY GAS WALL HEATER 15
Operating Instructions
1. STOP! Read the safety information above.
2. Set the thermostat to lowest setting.
3. If applicable, tum o󰀨 all electric power to the appliance.
4. Open the control access panel.
5. Push in the gas control knob slightly and turn
it clockwise to “OFF”.
NOTE: The knob cannot be turned from “PILOT’ to “OFF” unless
the knob is pushed in slightly. Do not use force.
6. Wait ve (5) minutes to clear out any gas, then smell for
gas, including near the oor. If you then smell gas, STOP!
Follow “B” in the safety information on previous page.
If you do not smell gas, go to the next step.
7. Loosen wing nut and open the pilot observation door.
8. To nd the pilot, follow the metal tube from gas control
valve. The pilot is mounted on the side of the burner.
9. Turn the knob on gas control valve counter
clockwise to “PILOT”.
10. Push in the control knob all the way and hold it in.
Immediately light the pilot. Continue to hold the control
knob in for about one (1) minute after the pilot is lit.
Release the knob and it will pop back up. The pilot should
remain lit. If it goes out, repeat Steps 5 through 10. If the
knob does not pop up when released, stop and
immediately call your service technician or gas supplier.
If the pilot will not stay lit after several tries, turn the gas
control knob to “OFF’ and call your service technician
or gas supplier.
11. Close the pilot observation door, tighten the wing nut
(if equipped).
12. Turn the gas control knob counter clockwise to “ON”.
13. Close the control access panel.
14. Turn on all electric power to the appliance (if applicable).
15. Set thermostat to the desired setting.
To Turn OFF Gas To Appliance
1. Set the thermostat to its lowest setting.
2. If servicing is to be performed, turn o󰀨 all electric power
` to the appliance.
3. Open the control access panel.
4. Push in the gas control knob slightly and turn it clockwise
to the “OFF” position. Do not use force.
5. Close the control access panel.
WARNING: Due to high surface temperatures, keep
children, clothing, furniture or any combustible material away
from the furnace. Make sure the “FOR YOUR SAFETY” hang tag
(see below) hangs below the heat shield.
WARNING: Danger of ignition ash and eye injury or
blindness. Protect your eyes. Never attempt to light the pilot with
the gas control valve knob in the “ON” position. Flashback could
occur.

16
OPERATING YOUR FURNACE
Start the furnace using the procedures in the section “Operating Your
Furnace”.
WARNING: Danger of bodily injury or death. Liquid
petroleum gas (L.P.G.) is heavier than air and it will settle in
any low area, including open depressions, and it will remain
there unless the area is ventilated. Never attempt to start-up
the unit before thoroughly ventilating the area.
Check the furnace operation as outlined in the following instructions.
If any sparking, odor or unusual noises are encountered, shut
o󰀨 electrical power immediately. Recheck for wiring errors or
obstructions in or near the optional blower motor.
NOTICE: During the initial ring of this unit, some smoke and odor
may occur. We recommend ventilating the area during this initial
“break-in period”.
CHECK GAS INPUT AND PRESSURES
For furnaces located at altitudes between sea level and 2,000
feet, the measured input must not be greater than the input
shown on the rating plate of the furnace. For elevations above
2,000 feet, the measured input must not exceed the input on the
rating plate reduced by 4% for each 1,000 feet that the furnace is
above sea level.
The gas supply pressure and the manifold pressure with the
burners operating must also be as specied on the rating plate.
The rated input will be obtained on 2,500 BTU of propane at 10
inches manifold pressure with factory-sized orices. If propane gas
having a di󰀨erent value is supplied, orices must be changed by a
qualied installer before the furnace
is operated.
CHECK THE MANIFOLD GAS PRESSURE
A tapped opening is provided in the gas valve to facilitate measuring
the manifold gas pressure. A “U tube” manometer having a scale
range from 0 to 12-inches water column should be used for this
measurement. The manifold pressure must be measured with the
burner and pilot operating. Any major changes in the ow must be
made by changing the size of the burner orice. Check with your
local gas company for the proper orice size.
CHECK THE GAS INPUT (NATURAL GAS ONLY)
Under ring could cause inadequate heat, excessive condensation
or ignition problems. Over ring could cause shooting ame
impingement or overheating of the combustion chamber. Before
starting the natural gas input check, obtain the heating valve of
the gas (BTU per cubic foot) at standard conditions from your
local supplier. This factor is used in the “Check the Gas lnput”
section and procedure.
To measure the input using the gas meter, proceed as follows:
1. Turn o󰀨 the gas supply to all other appliances except
the furnace.
2. With the furnace operating, time the smallest dial on the
meter for one complete revolution. If this is a 2 cubic foot
dial, divide the seconds by 2; if it is a 1 cubic foot dial, use
the time in seconds as is. (3,600 = Sec. Per Hr.) This gives
the seconds per cubic foot of gas being delivered to
the furnace.
3. Assuming natural gas with a heating valve of 1,000 BTU
per cubic foot and 34 seconds per cubic foot as
determined by step 2 above, then:
Input: 1,000 x 3,600 ÷ 34 = 106,000 BTU/hr.
This measured input must not be greater than the input
indicated on the rating plate of the furnace.
4. Relight all other appliances turned o󰀨 in step 1 above. Be
sure all pilot burners are operating.
WARNING: Natural gas heating valve (BTU per cubic foot)
can vary signicantly; therefore, it is the installer’s responsibility
to see that Btu input to the furnace is adjusted properly. Failure
to do so could cause combustion chamber failure, asphyxiation,
re or explosion, resulting in damage, bodily injury or death.
Refer to the Natural Fuel Gas Code (NFPA-54) to be sure the
furnace is burning fuel at the proper rate.
CHECK PILOT BURNER
The pilot ame should surround the generator tip 3/8-inch to 1/2-inch.
Pilot gas may need adjustment depending on the inlet pressure.
Increase or decrease the pilot ame to obtain proper setting.
BURNER FLAME CHARACTERISTICS
Start the furnace and let it operate at least 10 minutes. Open the
access door to view the burner ame. Limit your movements near the
furnace a few more minutes before making your nal observation.
The ame may look yellow due to dust particles in the room air.
The ame should change to a nice blue color with rm inner and
secondary cones. An occasional ash of orange might be seen as
dust particles burn in the ame. This is normal. No burner adjustment
is provided, or is necessary. Figure 16
TYPE OF GAS MANIFOLD PRESSURE, IN. W.C.
NATURAL 4.0
PROPANE 10.0
FIGURE 15
FIGURE 15
Start-Up Procedure

DIRECT VENT GRAVITY GAS WALL HEATER 17
CARING FOR YOUR FURNACE
NORMAL APPEARANCE NATURAL GAS:
1. Inner cone- blue color - 1/2 to 3/4-inch above ports.
2. Secondary inner cone - light blue - 1 to 2-inches
above ports.
3. Total ame - from blue to nearly invisible - approximately
6-inches above ports.
PROPANE GAS:
1. Inner cone - blue color - 1/2 to 3/4-inch above ports.
2. Secondary inner cone - light blue - 1 to 2-inches
above ports.
3. Total ame - from blue to nearly invisible - approximately
6-inches above ports.
How to Care for Your Furnace
ABNORMAL APPEARANCE
LAZY FLAME:
Long soft yellow cones moving around in the combustion
chamber lifting from ports (insu󰀩cient air).
EXTREMELY FAST FLAME:
Will not hold to ports - entire cone sections blow o󰀨 from noisy
ports (too much pressure).
WARNING: If ame appears abnormal, contact the gas
company or a qualied service technician immediately.
ANNUAL UPKEEP NEEDED
It is recommended that a qualied service technician perform
these checks at the beginning of each heating season:
BURNER CLEANING
Keep clean at all times. Clean all foreign materials from the top of
burner. For access to the burner:
1. Shut o󰀨 the gas supply to furnace.
2. Remove the cabinet.
3. Disconnect the gas line inside cabinet at the ground
joint union tting.
4. Remove the six (6) #10-24 screws securing the control
door assembly to the combustion chamber.
5. Carefully remove the control door and burner assembly
from the combustion chamber. Be careful not to
damage the control door gasket.
6. Clean all foreign materials from the top of the burner.
7. After cleaning, replace the control door and the burner
assembly by reversing the above procedure. The
control door gasket should be replaced if its condition
is in doubt.
FIGURE 16
FIGURE 16
CLEANING BURNER COMPARTMENT
Because cold air is attracted to the ame during furnace
operation, a build up of lint from carpeting, bedding, dust, etc.
in the burner area will occur. It is necessary to clean this area
regularly. Use a vacuum cleaner with a narrow attachment to
reach small areas. Be careful in and around the pilot. A change
in its adjustment could be made if moved during cleaning. A
properly adjusted burner with nearly all gasses will produce a
ame which has a clear blue cone having a bluish-red or bluish-
violet outer mantle.
CLEANING BLOWER (IF EQUIPPED)
Turn o󰀨 electric power supply at the disconnect switch, fuse box
or service panel before servicing. For maximum motor life of the
optional blower, inspect the motor yearly and clean any lint or
dust from fan blades, fan motor and ventilating holes. Oil yearly
with two drops of SAE 20 high temperature oil.
VENT SYSTEM
Check the vent cap and tubes to be sure there are no blocked
inlet air or ue openings. The ow of combustion and ventilation
air must not be obstructed. Clean or replace before using the
furnace. On new installations, the gas lines will be lled with air
and may take several minutes to establish a pilot ame.
FURNACE AREA
For better circulation and more e󰀨ective heating, do not place
obstructive furniture closer than four feet to the front of the
cabinet or two feet to either side of the cabinet.
The furnace area must be kept clear and free from combustible
material, gasoline and other ammable vapor and liquids.
CABINET FINISH
Clean the cabinet with a damp cloth. Never use abrasive
cleaners. Cabinets are nished in heat-resistant powder paint.
DO NOT renish.
PILOT BURNER
Light the pilot using instructions in “Lighting the Pilot”. Leave the
thermostat at its lowest setting. The pilot ame should surround the
generator tip 1/4″ to 5/8″. If ame needs adjusting, do so as follows:
1. Insert a small screwdriver into the pilot adjusting screw.
Adjust ame as needed. Turn the screw counterclockwise
to increase the ame, clockwise to decrease the ame.
2. Turn the thermostat to the highest setting. The main
burner should light quickly and smoothly. Turn the
thermostat to its lowest setting. The main burner should
go out. The pilot should remain lit.
NEARLY INVISIBLE
1.
2.
3. PALE BLUE
LIGHT BLUE
BLUE
PORT LEVEL

18
FIGURE 17
CARING FOR YOUR FURNACE
BLOWER ACCESSORY 2302 & 2303
This accessory can be operated using the factory equipped
three-prong (grounding) plug and cord or may be eld wired. See
eld wiring installation instructions below. When using the plug
and cord, for your protection against shock hazard, it must be
plugged directly into a properly grounded three prong receptacle.
DO NOT REMOVE THE PRONG. All electrical work must
conform to your local codes and ordinances, or in their absence,
with National Electrical Code ANSI/NFPA 70. In Canada,
Canadian Electrical Code C22.1. It must also be electrically
grounded. If you are not familiar with wiring codes in general,
have a competent electrician do the job.
MOUNTING - MODEL 2302
1. Remove the knock-out plates “A” and “B” from right
side of the furnace. Figure 1 page 19
2. Remove the junction box cover and place the blower
and junction box in position as shown on
Figure 1 page 19.
3. Attach the blower and the junction box to the inner
casing using the pre-punched holes with screws “C”
and “D” provided with this kit. See Figure 1 on page 19
for proper mounting hole to use with your furnace
model (see rating plate for furnace model number).
Reattach the junction box cover.
4. After the blower and junction box are installed, rotate
bushing “H” if needed to prevent the motor wire from
binding against the blower casing.
5. Plug in the factory supplied three-prong (grounding)
plug and cord or see eld wiring instructions below.
MOUNTING - MODEL 2303
1. Set the blower on top of the furnace with the rear
ange of the blower cabinet behind the furnace
cabinet. This will place the back of the blower cabinet
against the wall surface. See Figure 2 page 19
2. Plug in the service cord.
WARNING: Danger of bodily injury or death. If equipped
with accessory blower, turn o󰀨 the electric power supply at the
disconnect switch, fuse box or service panel before removing
any access doors or service panels from unit.
WARNING: Danger of property damage bodily injury
or death. Unplug the service cord from the electrical outlet
before removing or working on this blower kit.

DIRECT VENT GRAVITY GAS WALL HEATER 19
KIT No. 2302
INSTALLATION INSTRUCTIONS
BLOWER ACCESSORY 2302
MOUNTING BLOWER TO THE FURNACE
1. Remove the knock out plates “A” and “B” from
right side of the furnace. As shown below.
2. Remove the junction box cover and place blower
and junction box in position as shown.
3. Attach the blower and junction box to the inner
casing using the pre-punched holes with screws
“C” and “D” provided with this kit. See illustration
below for proper mounting hole to use with your
model.
4. After blower and junction box are installed, rotate
bushing “H” as needed to prevent motor wire
from binding against blower case.
5. Plug in factory supplied three prong (grounding)
plug and cord.
FIELD WIRING INSTALLATION INSTRUCTIONS
1. Remove junction box cover and disconnect
factory installed three prong (grounding) plug
and cord.
2. Install 115V line in accordance with local codes,
connecting as shown on the wiring diagram below.
3. Replace junction box cover.
TTHHIISS KKIITT IISS FFOORR UUSSEE WWIITTHH MMOODDEELL NNUUMMBBEERRSS::
22220033882222 // 22220033882211 // 33000033882222 // 33000033882211 CCDDVV2222 // CCDDVV3300
The automatic fan switch “E” turns on the blower after
the furnace has been operating a few minutes and
turns off the blower after the furnace shuts off. The
blower will not operate unless the fan switch (pull
chain) is pulled to the “ON” position, either “HIGH” or
“Low”. To check the fan switch (pull chain) position, turn
the automatic fan switch dial “E” to 70, then
pull the chain on the fan switch to obtain the high, low
or off position. Set the automatic fan switch dial to 110
and readjust it higher or lower as necessary to obtain
blower operation with 4 to 5 minutes after the furnace
burner is in operation. This accessory can be operated
by using the factory equipped three prong
(grounding) plug and cord or may be field wired. When
using the plug and cord, for your protection against
shock hazard, it must be plugged directly into a
properly ground three-prong receptacle. DO NOT CUT
OR REMOVE THE PRONG. All electrical work must
conform to your local codes and ordinances or in their
absence, with National Electrical Code ANSI/NFPA 70. In
Canada, Canadian Electrical Code C22.1. If you are not
familiar with wiring codes in general, have a competent
electrician do this job. Refer to your furnace owner’s
manual for additional information. Be sure this
accessory is of the type and design required for use with
your furnace.
RIGHT SIDE
KIT No. 2303
Figure 2
Figure 3
Figure 1

20
MODEL NUMBERS
1Face Panel 4310 4310
2Combustion Chamber Shield 8A72 8A72
3Combustion Chamber 6303 6303
4Flue Tube Gasket (2 Req.) P147001/2 P147001/2
5Inner Casing 8B62 8B62
6Air Inlet Gasket P147000 P147000
7Air Inlet Shield (Standard Maximum 9" Thick Wall) 6C54-1 6C54-1
8Vent Cap 9306 9306
9Air Inlet Collar (Standard Maximum 9" Thick Wall) 6C60 6C60
10 Flue Extension (Standard Maximum 9' Thick Wall) 6A193 6A193
11 Mounting Spacer Plate 8B64 8B64
12 Air Inlet Gasket P121800 P121800
REF.
NO. REPLACEMENT PART DESCRIPTION NATURAL CDV142E PROPANE CDV141E
FURNACE ASSEMBLY EXPLODED VIEW & REPLACEMENT PARTS
CDV14 MODELS
1
2
3
4
5
6
78
9
10
11
12