COZY CDV155B and User manual

DIRECT VENT
WALL FURNACE
INSTALLATION AND
OPERATING INSTRUCTIONS
P/N 70905
REV. 11/04
MODEL NUMBERS
NATURAL GAS CDV 155B CDV255B CDV335B
L.R GAS CDV156B CDV256B CDV336B
WARNING: If the information in this manual is not I
I
followed exactly, a fire or explosion may result causing
property damage, personal injury or loss of life.
Do not store or use gasoline or other flammable
vapors and liquids in the vicinity of this or any
other appliance.
WHAT TO DO IF YOU SMELL GAS:
Do not try to light any appliance.
Do not touch any electrical switch, do not use any
phone in your building.
Immediately call your gas supplier from a
neighbor's phone. Follow the gas supplier's
instructions.
If you cannot reach your gas supplier, call the fire
department.
INSTALLATION AND SERVICE MUST BE
PERFORMED BY A QUALIFIED
INSTALLER, SERVICE AGENCY OR THE
GAS SUPPLIER.
CDV15-B
CDV25/
CDV33-B
INSTALLER MUST LEAVE THESE
INSTRUCTIONS WITH THE CONSUMER,
HAVE THEM COMPLETE, AND RETURN
THE WARRANTY CARD.
The coating selected to provide longer life to
the heat exchanger may smoke slightly upon
initial firing. Please provide adequate
ventilation if this occurs.
The appliance may be installed in an aftermarket permanently located, manufactured home (USA only)
or mobile home, where not prohibited by local codes. This appliance is only for use with the _'pe of
gas indicated on the rating plate. This appliance is not convertible for use with other gases, unless a
certified kit is used.
WARNING: Operation of this furnace without the properly installed, furnished vent system and vent
cap could result in Carbon Monoxide (CO) poisoning and possible death. For your safe_ T,this furnace
and the vent system should be inspected at least annually by a qualified service person.
This unit is not approved for installation in greenhouses, or environments involving dusty, wet,
corrosive, or explosive conditions. Such conditions will invalidate the warranty and may create unsafe
conditions.

CONTENTS
Introduction .................................. 2
Specifications and Dimensions ............. 2
Safety Rules .................................. 2/3
Clearances.................................... 3/4
Location ...................................... 5
Installation ..................................... 5 - 8
Vent Kits .................................................. 5 - 7
Gas Connection ....................................... 8
BBSK Instructions ................................... 12/13
Lighting Instructions ........................ 9
Pilot Adjustment ............................. 10
Burner Orifice................................. 10
Wiring Diagram .............................. 10
Removing Main Burner..................... 10
Proper Burner Flame ........................ 11
Thermostat Installation..................... 11
Installing Optional Blower Kit............ 11
Maintenance Instructions ......................... 14
Trouble Shooting ............................ 19
Parts Drawing ................................ 15/17
Parts List ...................................... 16/18
Warranty ...................................... 21
INTRODUCTION
THIS IS A GAS-FIRED, DIRECT VENT WALL FURNACE THAT WILL OPERATE SAFELY AND
PROVIDE AN EFFICIENT SOURCE OF HEAT WHEN INSTALLED, OPERATED AND
MAINTAINED AS RECOMMENDED IN THESE INSTALLATION AND OPERATING
INSTRUCTIONS. READ THESE INSTRUCTIONS THOROUGHLY BEFORE INSTALLING,
SERVICING, OR USING THE APPLIANCE. IF YOU DO NOT U2qDERSTAND ANY PART OF
THESE INSTRUCTIONS CONSULT LOCAL AUTHORITIES, OTHER QUALIFIED INSTALLERS,
SERVICE AGENCIES, THE GAS SUPPLIER OR THE MANUFACTURER.
SPECIFICATIONS AND DIMENSIONS
Your Direct Vent Wall Furnace is shipped complete in one carton. This carton contains the furnace, vent
cap, vent tube, air inlet tube, template with rough-in dimensions, installation and operating instructions, and
the thermostat with thermostat wire (if applicable). NOTE: There will be two cartons if optional vent kit
or blower is purchased.
MODEL INPUT GAS TYPE MAX. WALL MIN. WALL
NO. BTUiHR. WIDTH DEPTH HEIGHT CON_. GAS THICKNESS THICKNESS
2DV155B 15.000 18" 9-3N" 29-3/4" __," NAT. 24" 5"
2DV156B 15_000 18" 9-3_4" 29-3/4" __," L.P 24" 5"
2DV255B 25,000 34-1/2" 9-3N" 31-3/4" __," NAT. 24" 5"
2DV256B 25,000 34-1/2" 9-3_4" 31-3/4" {_," L.R 24" 5"
2DV335B 33.000 34-1/2" 9-3N" 31-3/4" __," NAT. 15" 5"
2DV336B 33,000 34-1/2" 9-3_4" 31-3/4" {_," L.R 15" 5"
SAFETY RULES
1. Improper installation, adjustment, alteration, service, or maintenance can cause property damage, bodily injury, or death.
2. Use in other than a residential application may result in unsatisfactory performance and may void the warranty.
3. Follow all applicable codes and ordinances. If there are none, follow the latest edition of National Fuel Gas Code ANSI
Z223.1. A copy may be obtained from the American Gas Association, 1515 Wilson Blvd., Arlington, VA. 22209, or the
National Fire Protection Association, Batterymarch Park, Quincy, MA. 02269. In Canada, use latest edition of CAN1-
B 149 installation code.
4. Do not install this walt furnace in a recreational vehicle or trailer.
5. Do not operate wall furnace unless it is connected to the supplied vent system with vent cap in place.
6. Check the rating label attached to the wall furnace to be sure it is equipped I\_r the type gas you intend to use.
Page 2

SAFETY RULES - CONT'D.
7. Never use a match, candle, flame or other source of ignition to check for gas leaks. Use only soapy water or liquid
detergent.
8. Have your wall furnace and vent system inspected at least annually by a qualified service technician.
9. Before cleaning or servicing, turn off the gas and allow furnace to cool.
10. Do not operate wall furnace without outer casing in place.
11. Due to high temperatures, the wall furnace should be located out of traffic and away fiom furniture and drapes.
12. Children and adults should be alerted to the hazard of high surface temperature and should be kept away to avoid bums or
clothing ignition.
13. Young children should be carefully supervised when they are in the same room with the walt furnace.
14. Do not place clothing or other flammable material on or near the furnace.
15. Installation and repair should be done by a qualified service person. The wall furnace should be inspected before use and
at least annually by a professional service person. More fiequent cleaning may be required due to excessive lint from
carpeting, bedding material, etc. It is imperative that control compartlnents, burner, and circulating air passageways of
the fumace be kept clean.
16. Do not install in a closet, alcove, or small hallway where the furnace could be isolated fioln the space to be heated by
closing a door.
17. Do not put anything around the furnace or vent cap that will obstruct the flow of combustion and ventilation air.
18. 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. In Canada, use CSA C22.1 Canadian
Electrical Code.
19. Never operate this furnace without the sight glass in place or with the glass broken or missing.
20. If it is suspected that rising water may enter the furnace, turn off the gas immediately. Do not use the furnace if any part
has been under water. Ilnmediately call a qualified service technician to inspect the wall furnace and to replace any part
of the control system and any gas control which has been under water.
21. It is necessary to replace damaged gaskets or sealing material within the vent or air intake system. Failure to do so may
result in property damage, personal injury or loss of life.
22. Any safety screen or guard removed t\_r servicing must be replaced prior to operating heater.
CDV15-B
CEILING
I
24"
I
I I
[ ]
12" I FLOOR
FIGURE 1
CLEARANCES
CDV25 /CDV33-B
CEILING
1
__ 30"
---+ -- ]" 0"-
If 4" FLOOR
FIGURE 2 FIGURE 3
ALL VENT CAPS
.
When the wall furnace is installed directly on carpeting, tile or other combustible material other than
wood flooring, the furnace shall be installed on a metal or wood panel extending the full width and
depth of the furnace.
RESIDENTIAL GARAGE INSTALLATION: Gas utilization equipment in residential garages shall
be installed so that all burners and burner ignition devices are located not less than 18 inches (46cm)
above the floor. Such equipment shall be located, or protected so it is not subject to damage by a
moving vehicle. Use care in selecting a good location within the garage. DO NOT locate the appliance
where heated air will be directed onto a nearby parked vehicle. Paint may discolor or rubber may
harden and crack. DO NOT allow heated discharge air to blow directly onto open or closed containers
of paint, gasoline or other liquids having flammable vapors.
Page 3

VentTerminal _) Air Supply Inlet [] Area where terminal is not permitted
VENT TERMINAL CLEARANCES
REFEREN(_ LETTER TODRAWING
A Clearance above made, veranda,
porch, deck, or balconv
B Clearance to window or door that
may be opened
C Clearance to permanently closed
window
D Vertical clearance to ventilated soffit
located above the tenninat within a
horizontal distance of 2 Feet (61 cm)
from the center line of the terminal
E Clearance to unventilated soffit
F Clearance to outside corner
G Clearance to inside comer
H Clearance to each side of center line
extended above meter/regulator
assembly
I Clearance to service regulator
vent outlet
J Clearance to nonmechanical air supply
inlet to building or the combustion
air inlet to any other appliance
K Clearance to a mechanical air supply
inlet
L Clearance above paved sidewalk or
paved driveway located on public
property
M Clearance under veranda, porch,
deck, or balcony
CANADIAN INSTALLATIONS 1
12 Inches (30 cm)
12 Inches (30 cm)
12 Inches (30 cm)
18 Inches (46 cm)
18 Inches (46 cm)
12 Inches (30 cm)
12 Inches (30 cm)
3Feet (91 cm) within a height
15Feet (4.5m) above the meter/
regulator assembly
3 Feet (91 cm)
12 Inches (30 cm)
6 Feet(1.83 m)
7 Feet (2.13m) A vent shall not
terminate directly above a sidewalk or
paved driveway that is located between
two single family dwellings and
serves both dwellings
12Inches (30 cm) permitted only if
veranda, porch, deck, or balcony is
tully open on a minimum of two sides
U.S. INSTALLATIONS 2
12 Inches (30 cm)
9 Inches (23 cm)
9 Inches (23 cm)
18 Inches (46 cm)
18 Inches (46 cm)
12 Inches (30 cmt
12 Inches (30 cm)
Clearance in accordance with
local installation codes and the
requirements of the _as supplier
Clearance in accordance with
local installation codes and the
requirements of the gas supplier
12 Inches (30 cm)
3Feet (91 cm) above if within
10 Feet (3 m) horizontallv
Clearance in accordance with
local installation codes and the
requirements of the gas supplier
Clearance in accordance with
local installation codes and the
requirements of the gas supplier
In accordance with the current CSA-B 149.1 Natural Gas and Propane Installation Code
2 In aaccordance with the current ANSI Z223.1 /NFPA 54 National Fuel Gas Code
Page 4

LOCATION
1) The wall furnace must be installed on an outside wall.
2) For most efficient performance, locate furnace as centrally as possible in the area to be heated and where occupants may
move about freely without coming into contact with the grille.
3) If the furnace is installed in a basement, a 12" clearance must be maintained between ground level and the bottom of the
vent cap. Do not install furnace where vent cap will terminate in a window well or any other opening below ground level.
INSTALLATION
Failure to follow these instructions carefully could result in poor performance, property damage, personal
injury or death.
STEP 1. LOCATE VENT OPENING. Locate wall studs and center 9" vent opening a lninilnum of 22"
for CDV 15 or 24-1/8" f\_rCDV25/33 above the floor. To locate furnace at minilnum clearance from floor, remove template fiom
carton and set on floor at location desired. On model CDV15, position template no closer than 1" from either side walt. For
model CDV25/33, position template 1" minimum from a left side wall or 0" fiom a right side wall. Check outside wall to be sure
there is proper clearances around the vent cap. See Figure 3. Next, mark and cut out the vent openings on both the inside and
outside walls (be sure to keep the holes level). See Figure 5. Ifa higher location on the wall is desired, raise bottom of template
to desired height, make sure template is level and centered between studs, mark and cut out vent openings.
STEP 2. ROUGH-IN GAS SUPPLY. Install a ½" diameter gas supply line. This line can enter through the
floor, side, or rear wall. For location of gas connection to valve, see Fig. 4. The gas supply line must have an individual manual
shut offvatve located outside the cabinet, accessible fioln the rooln where the heater is installed. Install a drip leg immediately
ahead of the gas valve and provide a 1/8" N.ET. plugged tapping, accessible for test gauge connection, immediately upstream of
the gas supply connection. The furnace and the individual shut offvatve must be disconnected fioln the gas supply piping system
during any pressure testing of that system at test pressures in excess of 1/2" psig (3.5kPa). The furnace must be isolated fioln the
gas supply piping system by closing the individual manual shut off valve during any pressure testing of the gas piping system at
test pressures equal to or less than 1/2" psig (3.5kPa).
STEP 3. INSTALLING FURNACE - 5" TO 9" WALLS. Useonlythe exhausttube,air intake
robe, walt thimble extension, and vent terlninat provided with furnace. Do not attempt to lengthen the exhaust or air intake tubes,
this could cause an imbalance in the furnace resulting in poor perf\3rlnance and pilot outage, see Fibre 6. Extend the telescoping
watt thimble extension (surrounding the wall thimble assembly) to approximately 9 inches. Center the wall thimble assembly in
the 9 inch opening and attach to inside wall using eight (8) screws. The wall thimble extension should extend through the
opening and be adjusted so end of wall thilnble extension is even with outside wall. Install furnace flush to walt by sliding
exhaust tube and air intake tube through the wall thimble asselnbly. Secure the furnace to the wall with screws through each of
the four holes in the mounting brackets located on the back of the furnace. These holes are spaced so as to allow the screws to
enter into studs that are on 16 inch centers. On certain types of watl, anchors (not provided) may be required. Slide the vent
terlninal onto the exhaust tube and the air intake tube. Secure vent terlninat and vent terminal spacer plate to wall providing a
slight downward slope to the vent tubes. This will prevent water from entering. Anchors (not provided) may be required. Caulk
around vent terminal spacer plate with putty provided. See Figure 7. NOTE: Some fiaming may be necessary to provide a flat
surface f\_rthe vent terlninal spacer plate to butt against, so rain cannot enter through cut out.
Page 5

INSTALLING FURNACE- 9 TO 15" WALLS (CDV1 T.,,-,,3/ tnvz3_Dr Forg"
to 15" wall use Vent Kit No. VK1525/9-15-B. Do not attempt to lengthen the exhaust tube, air intake tube, or wall thimble
extension provided with furnace or the VK1525/9-15-B Vent Kit. Disconnect the air intake tube, and the exhaust tube fiom the
back of the furnace and discard. See Figure 6. Replace with exhaust tube and air intake tube from Kit No. VK1525/9-15-B.
Discard the 5" telescoping wall thimble extension that surrounds the wall thimble assembly. Center the wall thimble assembly in
the 9" opening and attach to inside wall using eight (8) screws. Install furnace flush to wall by sliding exhaust tube and air intake
tube through the wall thimble assembly. Secure the furnace to the wall with screws through each of the tour holes in the
mounting brackets located on the back of the furnace. These holes are spaced so as to allow the screws to enter into studs that are
on 16-inch centers. On certain types of wall, anchors (not provided) may be required. From outside the building install the thick
wall thimble extension, Part No. 43835, supplied in Vent Kit No. VK1525/9-15-B by sliding it through the cut out and over the
wall thimble asselnbly. The wall thilnble extension should be even with the outside wall (some trimming may be necessary).
Slide the vent terminal onto the exhaust tube and the air intake tube. Secure vent terminal and vent terminal spacer plate to walt
providing a slight downward slope to the vent tubes. This will prevent water froln entering. Anchors (not provided) may be
required. Caulk around the vent terminal spacer plate with putty provided. See FimJre 7. NOTE: Some flaming may be
necessary to provide a flat surface for the vent terminal spacer plate to butt against, so rain cannot enter through cut out.
INSTALLING FURNACE- 15" TO 24" WALLS (CDV151CDV25-B). For
15" to 24" wall use only Vent Kit No. VK1525/15-24-B. Do not attempt to lengthen the exhaust robe, air intake tube, or wall
thimble extension provided with furnace. The VK1525/15-24-B Vent Kit has a one inch restrictor in the exhaust robe which is
necessary for proper and safe operation of this furnace. Do not use any other vent kit. Disconnect the air intake tube and the
exhaust tube fiom the back of the furnace and discard, see Fimlre 6. Install the exhaust tube and air intake tube from Vent Kit No.
VK1525/15-24-B. Discard the 5" telescoping wall thimble extension that surrounds the wall thimble asselnbly. Center the wall
thimble asselnbly in the 9" opening and attach to inside wall using eight (8) screws. Install furnace flush to wall by sliding
exhaust robe and air intake robe through the wall thimble assembly. Secure the furnace to the wall with screws through each of
the four holes in the mounting brackets located on the back of the furnace. These holes are spaced so as to allow the screws to
enter into studs that are on 16-inch centers. On certain types of walls, anchors (not provided) may be required. From outside the
building install the wall thilnble extension, Part No. 43730, supplied in Vent Kit No. VK1525/15-24-B by sliding it through the
cut out and over the wall thilnble extension. For walls 15" to 19" the wall thimble extension, air intake robe, and the exhaust robe
must be trimmed even with the outside walt. Slide the vent terminal onto the exhaust tube and into the air intake tube. Secure
vent terminal and vent terminal spacer plate to wall providing a slight downwmd slope to the vent tubes. This will prevent water
from entering. Anchors (not provided) may be required. Caulk around the vent terminal spacer plate with putty provided, see
Fire,re 7. NOTE: Some fiaming may be necessary to provide a flat surf:ace for the vent terminal spacer plate to butt against, so
rain cannot enter through the cut out.
INSTALLING FURNACE- 9 TO 15" WALLS (CDV33-B). For9"to 15"walluse Vent
. r
Kit No. VK33/9-15-B. Do not attempt to lengthen the exhaust tube, air intake tube, or wall thimble extension provided with
furnace or the VK33/9-15-B Vent Kit. Disconnect the air intake tube, and the exhaust tube from the back of the furnace and
discard. See Figure 6. Replace with exhaust tube and air intake tube from Kit No. VK33/9-15-B. Discard the 5" telescoping wall
thimble extension that surrounds the wall thimble assembly. Center the wall thimble assembly in the 9" opening and attach to
inside wall using eight (8) screws. Install furnace flush to walt by sliding exhaust tube and air intake robe through the wall
thilnble asselnbly. Secure the furnace to the wall with screws through each of the four holes in the mounting brackets located on
the back of the furnace. These holes are spaced so as to allow the screws to enter into studs that are on 16-inch centers. On
certain types of wall, anchors (not provided) may be required. From outside the building install the thick wall thimble extension,
Part No. 43835, supplied in Vent Kit No. VK33/9-15-B by sliding it through the cut out and over the wall thimble assembly. The
wall thimble extension should be even with the outside walt (some trimlning may be necessary). Slide the vent terminal onto the
exhaust tube and the air intake tube. Secure vent terminal and vent terminal spacer plate to wall providing a slight downward
slope to the vent robes. This will prevent water fiom entering. Anchors (not provided) may be required. Caulk around the vent
terminal spacer plate with putty provided. See Fibre 7. NOTE: Some fiaming may be necessary to provide a flat surfhce f\_rthe
vent terminal spacer plate to butt against, so rain cannot enter through cut out.
Page 6

29-a/4
22" OAS VALVE
8'2--+ INLET
1 _ " FLOOR
Centre Line Pipe Elbow,,_ '_' _ 18" N P T I'
SHUT OFF _ _I Pt_EgS_fRE TAP
VALVE L] e---- GAS
DRIP LE__G_ =::::_ SUPPLY
1_ _ 1 2" BLACK IRON PIPE
FIG. 4 /CDV15-B FIG. 4
,( 34-12" CABINET
__13_3 °P89
CDV25/33-B
__16-5/8" , GAS VALVE
- INLET
/l
13"
/
SHUT OFF__ -I'8"NeT [
VALVE PRESSURETAP 1
DRIP _:_-S_LY
LEG ____€_ _X. 1/:'_IRO#pLACEK
FIG. 5
" MINIMUM SIDE WALL TYP.
_WALL STUDS
I_// 16 O.C. I I
[-4 ]]
7EMPLATEI I
CDV15-B
//
//
//
//
//
//
//
//
//
//
//
//
//
//
//
//
//
//
//
i
EXHAUST
.-I TUBE
INTAKE TUBE
TUBE
INTAKE TUBE
FIG. 6 /CDV15-B FIG. 6 /CDV25/33-B
Page 7

Wall Thimble Wall Stud -_ I Inside Wall
FIGURE 7
Wall Thimble
Assembly
Outside Wall
--Vent Terminal Spacer Plate
Vent Terminal
GAS CONNECTION
Make gas connection between manual shut offvalve and furnace valve with approved connectors. Compounds
used on threaded joints of gas piping shall be approved for use with L.P gas. The gas lines must be checked for
leaks by the installer with soapy water or liquid detergent, never an open flame. If connections are not
exposed, a pressure test must be run. Be sure to disconnect the gas supply line from the appliance valve before
pressure testing. The manifold pressure is pre-set at the factory and should be 3.5" w.c. for Natural Gas and
10" w.c. for L.R Gas. The minimum inlet pressure for Natural Gas is 4.5" w.c. and 11" w.c. for L.R Gas, "for
purpose of input adjustment". The maximum inlet pressure should never exceed 7.0" w.c. on Natural Gas or
14" w.c. on L.R Gas.
Page 8

LIGHTING INSTRUCTIONS/MILLIVOLT (SELF GENERATING)
MODELS: CDV155B, CDV156B, CDV255B, CDV256B, CDV335B, CDV336B
FOR YOUR SAFETY READ BEFORE LIGHTING
WARNING: If you do not follow these instructions exactly, a fire or explosion may result causing
property damage, personal injury or loss of life.
a_. This appliance has a pilot which must be lighted by hand.
When lighting the pilot, follow these instructions exactly.
g. BEFORE LIGHTING smell all around the appliance area
for gas. Be sure to smell next to the floor because some
gas is heavier than air and will settle on the floor.
WHAT TO DO IF YOU SMELL GAS:
> Do not try to light any appliance.
> Do not touch aW electric switch; do not use any phone in
your building.
> hnmediately call your gas supplier from a neighbor's
phone. Follow the gas supplier's instructions.
If you cannot reach your gas supplier, call the fir_
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 turn b3
hand, don't try to repair it, call a qualified servic_
technician. Force or attempted repair may result in a fin
or explosion.
D. Do not use this appliance if any part has been under water
hmnediately call a qualified selvice technician to inspec
the appliance and to replace any part of the control systmT
and any gas control which has been under water.
LIGHTING INSTRUCTIONS
1. STOP! Read the int\_rlnation on the safety label.
2. Set thermostat to lowest setting.
3. Remove cabinet.
4. Push in gas control knob slightly and turn clockwise
to "OFF".
-- Gas Control Knob
NOTE: Knob can
not be turned from
"PILOT" to "OFF"
unless knob is
pushed in slightly.
Do not force.
5. Wait five (5) minutes to clear out any gas. Then smell
t\_r gas, including near the floor. If you smell gas,
STOP! Follow "B" in the safety information on the
safety label. If you don't smell gas, go to the next step.
6. Open sight glass cover.
7. Locate red piezo ignitor button inside gas control
compartment. Locate pilot behind sight glass. (Follow
metal pilot tube from gas control).
8.
9.
>
>
10.
11.
12.
13.
Sight Glass ---] [-_-,_igh!c_,,7¢,Glass
a ® [__J_-Pilot ®
" IWI
c® ®
Turn gas control knob counterclockwise _ to "PILOT"
Push in gas control knob and hold in. hmnediately begin
series of pushing and releasing the red piezo ignitor buttor
while obseiMng the pilot through the sight glass. Continu_
to spark until pilot is lit. Continue to hold the gas contro
knob in for about one (1) minute after the pilot is lit. Releas_
the gas control knob and it will pop back up. Pilot shouk
remain lit. If pilot goes out, repeat steps 4 thin 9.
If knob does not pop up when released, STOP ant
immediately call your seiMce technician or gas supplier.
If the pilot will not stay lit after several tries, mm the gas
control knob to "OFF" and call your service technician ol
gas supplier.
Close sight glass cover.
Turn gas control knob counterclockwise _ to "ON".
Replace cabinet.
Set thermostat to desired setting.
TO TURN OFF GAS TO APPLIANCE
1. Set the thermostat to it's lowest setting.
2. Open cabinet door.
3. Push in gas control knob slightly and mrn cloclcwise /_al to "OFF". Do not force.
4. Close cabinet door.
Page 9

PILOT ADJUSTMENT
Locate pilot adjustment cap on valve and remove. See Figure 8.
Pilot flame should surround the top 3/8 to L/_,inch of powerpite or
thermocouple, see Figure 9. To increase pilot flame, turn pilot
adjustment scre,a; see Figure 8, counterclockwise. To decrease pilot
flame, mm screw clockwise. After a proper pilot flame is established
replace pilot adjustment cap, be sure gasket located on bottom of
cap head is in place. The gas supply to the pilot is unregulated.
When line pressure exceeds 7" w.c. Natural Gas, 11" ,a_c. L.P. Gas,
pilot adjustment must be made.
TO REMOVE MAIN BURNER FOR
INSPECTION AND CLEANING
1. Remove outer casing.
2. Disconnect gas supply to valve.
3. Remove 11 screws holding burner door to heat exchanger and
lift out complete burner, valve assembly.
4. After inspecting burner, place back into heat exchanger. Be
sure door gasket is not damaged and will effect a proper seal or
pilot outage wilt occur.
5. Tighten screws holding burner door to heat exchanger.
6. Connect gas supply back to valve.
7. Install fiont panel and follow lighting instructions.
NOTE: The furnace and all components must be inspected at least
annually by a qualified service person. This should include the
burner, heat exchanger, and vent system. Be sure that the flow
of combustion and ventilation air are not obstructed.
BURNER ORIFICE
This appliance is orificed at the factory for elevations up to 2,000 ft.
If installed above 2,000 ft., the BTU input must be reduced 4% per
1,000 ft. See the following orifice chart for the proper orifice for a
specific elevation.
NATURAL GAS
SPECIFICELEVATIONS
MODEL 0 TO 2,000' 4,000' 6,000' 8,000'
_MBER 2.000' 4.000' 6.000' 8.000' 10.00'
CDV155B 48 49 50 51 52
CDV255B 2.45nml 41 42 43 44
CDV335B 2.75mln 37 38 40 42
ORDER KIT #49800 44-1 HIGH ALTITUDE KIT
L.P. GAS
SPECIFIC ELEVATIONS
MODEL 0 TO 2,000' 4,000' 6,000' 8,000'
NUMBER 2,000' 4,000' 6,000' 8,000' 10,00'
CDV156B 1.2mm 56 57 59 60
CDV256B 1.55mln 54 54 55 55
CDV336B 1.65mln 51 52 52 53
ORDER KIT #49800 44-1 HIGH ALTITUDE KIT
Pilot Adj. Screw
Pilot Adj. Cap
©
FIGURE 8
FIGURE 9
O
Pilot flmne should envelop
r"" 3/8" - 1/2" ofpowerpile
couple
I I
WIR1NG DIAGRAM
Pilot Generator Thermostat
Leads Wire
WIR1NG DIAGRAM
I
CAUTION: Label all wires prior to disconnec-
tion when servicing controls. Wiring errors can
cause improper and dangerous operation. Verify
proper operation after servicing.
Page 10

PROPER BURNER FLAME
The burner flame may be observed by raising the sight glass cover. A proper flame will have a dark blue inner mantle that sits
right on top of the burner with a lighter blue outer mantle rising over the burner, see Fimlre 10. There may be some yellow where
the pilot flame and burner flame meet. There is no primary air adjustment on the burner, and proper flame is assured since the
correct manifold pressure and orificing has been done at the thctory.
3,,T4,,O TERFLA_ E
[-71 3¸¸¸¸¸¸¸8;,
_-----JJ MANTLE
FIGURE 10 CDV15-B FIGURE l0 - CDV25/33-B
THERMOSTAT INSTALLATION
FORCDV 155B,CDV 156B,CDV255B,CDV256B,
CDV335B, CDV336B MODELS ONLY
Follow the instructions included with the thermostat. If
the thermostat is to be wall mounted, select a location in
the stone room as the heater, approxilnately five feet above
the floor 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 pipes, drafts, etc. The
thermostat must not be placed in an adjacent room. The
furnace is equipped with a self-generating control system;
never connect to a 24-volt transformer or household electric
system. Do not splice or attempt to use more thermostat
wire than is supplied. Connect thermostat wires to
thermostat and mount thermostat to wall, run wire to
furnace, securing with insulated staples provided, and
connect to valve terminals marked TH, see Fibre 8.
INSTALLING OPTIONAL BLOWER KIT
See Figure 12
1. Remove outer casing.
2. Remove floor shield from bottom of heater and disconnect
piezo wire.
3. Remove and discard cover shield. Save screws.
4. Attach blower to bottom of floor shield using screws
saved in Step 3.
5. Connect piezo wire and attach floor shield to heater. Slide
the white cable clamp (provided) over both motor lead wires
and the power cord. Secure to left side of heater with the
front screw used to secure the floor shield.
6. Attach the junction box to the left side of wrapper using
tour #8x 1/2" screws provided.
7. Plug power cord into 115 volt grounded outlet.
8. Replace outer casing and follow lighting instructions to
place heater in operation.
The unit must be elec!rically grounded accordingto the National
Electrical Code ANSI/NFPA No. 70-1987. This appliance is
equipped with a three prong grounding plug. For your protection
against shock hazard, this appliance should be plugged directly
into a properly grounded three-prong receptacle. Do not cut or
remove the grounding prong from this plug.
L1
I
POWER
CORD
L2
LADDER
SCHEMATIC
FAN SWITCH
PICTORIAL
SCHEMATIC
BLOWER
MOTOR
NOTE: This blower assembly is equipped with a temperature
activated fan switch that will automatically cycle the blower on
when the heat exchanger has reached a predetermined
temperature. Once the burner shuts off; this switch will cycle
the blower off after the heat exchanger cools to the fan switch
differential setting. THIS BLOWER WILL NOT OPERATE
UNLESS THE MAIN BURNER IS IN USE.
If any of the original wire supplied with this appliance has to be replaced,
it must be replaced with type 105 degree C wire or its equivalent.
CTION BOX
BLOWER
COVER SHIELD - REMOVE AND DISCARD
FIG. 12
FIG. 11 Page 11

STEP 1)
STEP 2)
STEP 3)
STEP 4)
STEP 5)
STEP 6)
STEP 7)
STEP 8)
STEP 9)
STEP 10)
STEP 11)
OPTIONAL BBSK INSTALLATION INSTRUCTIONS
LOCATE DIMPLE AT RIGHT REAR OF THE CABINET TOP. SEE FIGURE A.
USING DIMPLE AS A LOCATOR, DRILL A V_,"HOLE.
STRAIGHTEN THE CAPILLARY TUBE. DO NOT KINK THE CAPILLARY TUBE OR SENSING
BULB. SEE FIGURE B.
FROM TOP OF HEATER, INSTALL SENSING BULB DOWN AND UNDER THE GAS CONTROL
VALVE SO THAT THE CAPILLARY TUBE IS BETWEEN THE BACK OF THE HEATER AND THE
WALL. SLIDE WHITE CABLE CLAMP (PROVIDED) ONTO SENSING BULB AND SECURE TO THE
BOTTOM OF THE GAS VALVE USING THE 10-24X3/8" SCREW PROVIDED.
SECURE THE CONTROL SWITCH (SEE FIGURE B) TO THE RIGHT SIDE OF THE INNER WRAPPER
USING PREPUNCHED HOLES AND TWO #8 SCREWS PROVIDED. SEE FIGURE C. NOTE:
SWITCH MUST BE INSTALLED TO BE OUTSIDE THE WRAPPER.
RUN THE TWO CONTROL WIRES FROM THE SWITCH DOWN THE RIGHT OUTSIDE OF WRAP-
PER. CONNECT ONE WIRE TO THE "TH" TERMINAL AND ONE TO THE "THPP" TERMINAL ON
THE GAS VALVE. SEE FIGURE D. SLIDE A WHITE CABLE CLAMP (PROVIDED) OVER BOTH
WIRES AND SECURE TO WRAPPER USING SCREW THAT SECURES THE FLOOR SHIELD.
IF HEATER IS NOT INSTALLED TO WALL, FOLLOW INSTRUCTIONS TO DO SO.
REMOVE AND DISCARD THE LIGHTING INSTRUCTIONS SUPPLIED WITH HEATER. REPLACE
WITH LIGHTING INSTRUCTION SUPPLIED IN BBSK KIT.
PLACE CABINET ONTO HEATER, THE CONTROL ROD SHOULD EXTEND UP THROUGH THE V__"
HOLE IN TOP OF CABINET.
PLACE THE CONTROL KNOB ONTO THE CONTROL ROD AND SECURE BY PUSHING DOWN.
FOLLOW THE LIGHTING INSTRUCTIONS TO PLACE THE HEATER IN OPERATION.
1316"_
f
tZZZZZZZZZD
CDV15
FIGURE A
I
3-1,4"
__2
\DIMPLE
-6-12'
__4
,r__ DIMPL]
E===3 _----cxxx=:n _-----_ _
CDV25/33
Control
lJ_ _ _._-= - LTnit
Sensing _,
Bulb
FIGURE B
RIGHT SIDE OF%
IN_ER WRAPPER'I\
t '
[/'_.
I/\+ i
\ ,\,y/! +
CDV15 ' /
FIGURE C
RIGHT SIDE OF -i l
INLNER WRAPPER X_
1-7/_" '_
_<-- 2"+
[
.............,
CDV25/33',,//
J
-TH__p ,¸
FIGURE D
Page 12

BBSK LIGHTING INSTRUCTIONS (Optional)
FOR YOUR SAFETY READ BEFORE LIGHTING
WARNING: If you do not follow these instructions exactly, a fire or explosion may result causing
property damage, personal injury or loss of life.
A. This appliance has a pilot which must be lighted by hand.
When lighting the pilot, t\_tlow these instructions exactly.
B. BEFORE LIGHTING smell all around the appliance area
for gas. Be sure to smell next to the floor because some
gas is heavier than air and will settle on the floor.
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.
hmnediately call yore gas supplier from a neighbor's
phone. Follow the gas supplier's instructions.
If you cannot reach your gas supplier, call the fire
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 turn by
hand, don't try to repair it, call a qualified service
technician. Force or attempted repair may result in a fire
or explosion.
D. Do not use this appliance if any part has been under water.
hnmediately call a qualified service technician to inspect
the appliance and to replace any part of the control system
and any gas control which has been under water.
LIGHTING INSTRUCTIONS
1. STOP! Read the inforlnation on the safety label.
2. Set temperature control knob located on top of cabinet to
lowest setting.
3. Remove temperature control knob by pulling straight up.
4. Remove cabinet.
5. Push in gas control knob slightly and turn clockwise
i"X to "OFF".
i Gas Control Knob
NOTE: Knob can
not be tamed from
"PILOT" to "OFF"
unless knob is
pushed in slightly.
Do not force.
9.
10.
>
>
6. Wait five (5) minutes to clear out any gas. Then smell
f\_r gas, including near the floor. If you smell gas,
STOP! Follow "B" in the safety information on the 11.
safety label. If you don't smell gas, go to the next step. 12.
7. Open sight glass cover. 13.
8. Locate red piezo ignitor button inside gas control 14.
compartment. Locate pilot behind sight glass. (Follow 15.
metal pilot tube from gas control).
Glass ,_._ ,__Sight Glass
Sight ---11 I Cover
o ® ll_ll ® _I
Turn gascontrolknob counterclockwise_ to "PILOT".
Pushin gascontrolknob andhold in. hmnediately begin a
series of pushing andreleasing thered piezo ignitor button.
while observing thepilot throughthe sight glass. Continue
to spark until pilot is lit. Continue to hold the gas control
knob in for about one (1) minute after the pilot is lit. Release
the gas control knob and it will pop back up. Pilot should
remain lit. If pilot goes out, repeat steps 4 thru 9.
If 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 oi
gas supplier.
Close sight glass cover.
Turn gas control knob countercloclcwise N"N to "ON".
Replace cabinet.
Replace temperature control knob.
Set temperature control knob to desired setting.
TO TURN OFF GAS TO APPLIANCE
1. Set the telnperature control knob to it's lowest setting.
2. Remove temperature control knob.
3. Remove cabinet.
4. Push in gas control knob slightly and mm cloclcwise _ to "OFF". Do not force.
5. Replace cabinet.
6. Replace temperature control knob.
Page 13

MAINTENANCE INSTRUCTIONS
For proper and safe operation keep furnace and
furnace area clean. At regular intervals turn
control valve to off, let cool and clean inside
control compartment and under heater. To clean
front panel use only a damp cloth, do not use
any kind of solvent or cleaning fluid that could
leave a residue or invisible coating that would
burn or give off fumes when furnace is turned
on.
Have the furnace checked, cleaned, and repaired
by a qualified service person. Check venting
system, pilot, and burner operation prior to use
each year.
Follow a regular service and maintenance
schedule for safe and efficient operation.
Do not obstruct combustion and ventilation air.
Examine the venting system as a routine part of
the safety performance check on an annual basis.
If the air intake tube or the exhaust tube is
removed, follow Step 3 of the installation section
for re-assembly. Be sure to check gaskets and
replace if there is any sign of damage.
If the heat exchanger is removed, check the heat
exchanger intake gasket and replace if there is
any sign of damage. Be sure the gasket is in
place when the heat exchanger is replaced.
Failure to replace any gasket that has been
damaged may result in property damage, personal
injury or loss of life.
SERVICE RECORD
WARNING
THIS IS A GAS-FIRED APPLIANCE. KEEP
THE AREA CLEAR OF GASOLINE AND
OTHER FLAMMABLE VAPORS AND
LIQUIDS. ALL COMBUSTIBLE MATERIAL
MUST BE KEPT CLEAR OF THIS AREA TO
AVOID FIRE OR EXPLOSION.
Pagel4

MODEL NUMBERS
MILLIVOLT
NAT. GAS L.P. GAS
CDV155B CDV156B
DIRECT VENT WALL FURNACE
PARTS LIST
Prices and specifications subject to change
without notice. All prices are F.O.B. factory.
COZY DIRECT VENT WALL FURNACE - CDV15-B
Page 15 REV. 07/01

HOW TO PROPERLY ORDER PARTS: In addition to part description and part number, please give model number, serial
nmnber, and type of gas used. This information can be found on the rating plate located in control compartment.
NAT. CDV155B
MODEL NUMBERS
PART DESCRIPTION
Heat Exchanger
Vent Exhaust Tube Gasket
Wrapper Assembly w/Comb. Air Pan
Cabinet
Front Heat Shield
Bottom Heat Shield
Vent Cap
Vent Cap Spacer Plate
Air Intake Tube Assy. (5-9" Wall) 6-3/4" Dia.
Air Intake Tube Assembly (9-15" Wall)
Air Intake Tube Assembly (15-24" Wall)
Air Intake Tube Gasket
Vent Exhaust Tube Assy. (5-9" Wall) 4-3/16" Dia.
Vent Exhaust Tube Assembly (9-15" Wall)
Vent Exhaust Tube Assembly (15-24" Wall)
Wall Thimble Assembly (5 - 9" Wall)
Wall Thimble Extension (5-9" Wall)
Wall Thimble Extension (9-15" Wall)
Wall Thimble Extension (I 5-24" Wall)
Wall Thimble Gasket
Burner Access Door
Heat Exchanger Door Gasket
Main Burner
Manifold
Manifold Gasket
Main Burner Orifice, Natural Gas
Main Burner Orifice, L.R Gas
Sight Glass AssembN
Sight Glass Cover
Sight Glass/Pilot Burner, Gasket
Pilot Burner Q350A1529, Natural Gas
Pilot Burner Q350A1537, L.R Gas
Electrode
Electrode Wire
Piezo Sparker
Piezo Sparker Bracket
Valve, MV, Robertshaw 7000MVRLC, Nat. Gas fbr CDV 155
X?alve, MV, Robertshaw 7000MVRLC, L.R Gas for CDV156
X?alve, MV, Dexen 6003, Natural Gas for CDV155
x?,alve. MV, Dexen 6003LR L.R Gas for CDV156
Generator, Q313A for CDV155 /CDV156
Pilot Tubing w/fittings
Thermostat
Therlnostat Wire
Insulated Staples
Air Pan Assembly w/Gasket for CDV15
90 Degree Elbow
Vent Terminal Shield
Blower Housing w'Motor & Blower
Junction Box
Junction Box (?over
Fan Switch 120 Degrees
Cord Set
(?over plate
Blower Screen
L.P.
REF.
NO.
1
3
4
5
9
i0
11
12
14
15
49
16
17
18
52
20
21
22
53
23
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
41
41
41
43
44
45
NiA
N.A
NiA
56
NiA
46
47
48
50
51
NiA
NiA
CDV156B
PART LIST
NIBIBER PRICE
42565 $177.60
70062 $2.00
43051 $94.50
42555 $121.30
43081 $7.80
43075 $5.90
43145 $111.40
43190 $14.50
43200 $15.20
43810 $21.80
43705 $23.60
70061 $3.50
43209 $17.40
43820 $20.60
43717 $23.40
43230 $12.50
43236 $4.60
43835 $10.10
43730 $14.90
70066 $1.60
43247 $7.90
70060 $9.30
70005 $42.40
70031 $17.70
70065 $1.20
70040 $3.40
70041 $3.40
43252 $6.50
43258 $1.50
70064 $1.20
80023 $9.80
80022 $9.80
70052 $7.80
70051 $2.70
80016 $5.70
43263 $2.70
70090 $135.70
70091 $144.50
84085 $135.70
84086 $144.50
70098 $32.30
70012 $6.60
74592 $20.00
74518 $1.30
74209 $1.20
43059 $18.20
70352 $10.70
34950 $60.80
70201 $106.60
43610 $4.20
43620 $5.10
70110 $6.30
80202 $4.20
43078 $2.40
43630 $3.50
Mn Contractor, we only sell parts through our wholesalers, but the prices listed above are for your convenience. For prolnpt
parts service, contact the wholesaler fiom which you purchased your Cozy heater. NOTE: Parts & schematic drawings on
current models are shown at w_v.cozyheaters.com
MARCH 2005
*Requires 2 Page 16 REV. 11/23/04

MODEL NUMBERS
NATURAL GAS
CDV255B
CDV335B
L.P. GAS
CDV256B
CDV336B
DIRECT VENT WALL FURNACE
PARTS LIST
Prices and specifications subject to change
without notice. All prices are F.O.B. factory.
COZY DIRECT VENT WALL FURNACE - CDV25-B /CDV33-B
(Ref. No. 6 l, 62, & 63
Not illustrated
VENT EXTENSIONS
=VK15/25-9-15" Vent Kit Assembly
VK33/9-15" Vent Kit Assembly
=VK15/25-15-24 Vent Kit Assembly
OPTIONAL BLOWER ASSEMBLY /
DVB-2
Page 17 REV. 07/01

HOW TO PROPERLY ORDER PARTS: In addition to part description and part number, please give model number, serial
number, and type of gas used. This information can be found on the rating plate located in control compartlnent.
MODEl, NI MBERS
PART DESCRIPTION
Heat Exchanger
Wrapper w/Comb. Air Pan
Cabinet
Le_, Right
Leg, Left
Front Heat Shield Assembly
Bottom Heat Shield Assembly
Vent Cap
Vent Cap Spacer Plate
Air Intake Tube Assy. (5-9" Wall) 6-3i4"Dia.
Air Intake Tube Assy. (9-15" Wall)
Air Intake Tube Assy. (15-24" Wall)
Air Intake Tube Gasket
Vent Exhaust Tube Assy. (5-9" Wall) 4-3/16" dia.
Vent Exhaust Tnbe Assy. (9-15" Wall)
Vent Exhaust Tube Assv. (15-24" Wall)
Vent Exhaust Tube Gasket (Requires 4)
Wall Thimble (5-9" Wall)
Wall Thimble Extension (5-9" Wall)
Wall Thimble Extension (9-15" Wall)
Wall Thimble Extension (15-24" Wall)
Wall Thimble Gasket
Burner Access Door
Burner Access Door Gasket
Burner
Manifold
Manifold Gasket
Main Burner Orifice (Nat. Gas)
Main Burner Orifice (L.R Gas)
Sight Glass Assembly
Sight Glass Cover
Sight Glass.Pilot Bumer, Gasket
Pilot Burner Q350A1529 (Nat. Gas)
Pilot Burner Q350A1537 (L.R Gas)
Electrode
Electrode Wire
Piezo Sparker
Piezo Sparker Bracket
Valve, MV, Robertshaw 7000MVRLC-Nat. Gas
Valve, MV, Robertshaw 7000MVRLC-L.R Gas
Valve, MV, Dexen 6003, Natural Gas
Valve i MV. Dexen 6003LP. L.P. Gas
Pilot Generator, TP75 Millivolt
Pilot Tubing w/fittings
Thermostat, Millivolt
Thermostat Wire
Insulated Staples
Comb. Air Pan Assembly w/Gaskets
Gasket, Air Pan Top & Bottom (15-I/4xl)
Gasket, Air Pan Sides (25xl)
90 Degree Elbow
Vent Terminal Shield
Blower Housing w/Motor & Blower
Junction Box
Junction Box Cover
Fan Switch 120 degree
Cord Set
Cover Plate
Blower Screen
NAT.
l,.R
REE
NO.
1
2
3
6
7
9
10
11
12
15
16
58
17
18
19
59
20
21
22
23
6O
24
25
26
27
28
29
30
30
31
32
33
34
34
35
36
37
38
39
39
39
39
40
41
42
NiA
NiA
63
61
62
56
N,A
46
47
48
5O
51
NiA
NiA
CDV255B
CDV256B
PART LIST
N O. PRICE
42765 $229.30
43451 $89.80
42755 $190.80
43495 $9.70
43494 $9.70
43481 $23.70
43473 $10.60
43145 $111.40
4319O $14.50
43200 $15.20
4381O $21.80
43705 $23.60
70061 $3.50
4353O $18.20
43820 $20.60
43717 $23.40
70062 $2.00
43552 $14.10
43236 $4.60
43835 $10.10
43730 $14.90
70066 $1.60
43247 $7.90
70060 $9.30
70006 $52.40
70032 $18.60
70065 $1.20
70048 $3.40
70039 $3.40
43252 $6.50
43258 $1.50
70064 $1.20
80023 $9.80
80022 $9.80
70052 $7.80
70051 $2.70
80016 $5.7O
43263 }2.70
70090 $135.70
70091 $144.50
84085 $135.70
84086 $144.50
70098 $32.30
70012 $6.60
74592 $20.00
74518 $1.30
742O9 $1.20
43458 $27.80
*70074 $1.20
*70073 $1.20
70352 $10.70
34950 $60.80
70201 $106.60
4361O $4.2O
43620 $5.10
70110 $6.30
80202 $4.20
43078 $2.40
43630 $3.50
CDV335B
CDV336B
PART LIST
NO. PRICE
42765 $229.30
43451 $89.80
42755 $190.80
43495 $9.70
43494 $9.70
43481 $23.7O
43473 $10.60
43145 $111.40
43190 $14.50
43200 $15.20
4381O $21.80
NiA NiA
70061 $3.50
43535 $18.10
43828 $18.30
NiA NiA
70062 $2.00
43552 $14.10
43236 $4.60
43835 $10.10
NiA N_
70066 $1.60
43247 $7.90
70060 $9.30
70006 $52.40
70032 $18.60
70065 $1.20
70047 $3.40
70049 $3.40
43252 $6.50
43258 $1.50
7O064 $1.20
80023 $9.80
80022 $9.80
70052 $7.80
70051 $2.70
80016 $5.70
43263 }2.70
70090 $135.70
70091 $144.50
84085 $135.70
84086 $144.50
70098 $32.30
70012 $6.60
74592 $20.00
74518 $1.30
74209 $1.20
43458 $27.80
*70074 $1.20
*70073 $1.20
70352 $10.70
34950 $60.80
70201 $106.60
43610 $4.20
43620 $5.10
70110 $6.30
80202 $4.20
43078 $2.40
43630 $3.50
Ml: Contractor, we only sell parts through our wholesalers, but the
contact the wholesaler from which you purchased your Cozy heater. NOTE: Parts
www.cozyheaters.com.
Requires 2 Page 18
& schematic drawings on current models are
>rices listed above are for your convenience. For prompt parts service,
shown at
MARCH 2005 /REV 11/2004

TROUBLE SHOOTING CHART
SYMPTOM CORRECTIVE ACTION
Flame too large Replace valve.
Check with local gas company for proper oriifce
- size and replace.
See burner orifice sectiom Page 10.
Yellow burner flame Remove main burner and check for obstructions in
throat, ports, and orifices. Clean - but do not
enlarge ports or orifices.
Make sure area around vent cap is clear, be sure
vent s_isteln is sealed.
Gas odor See Pa_e 1.
Delayed Ignition Adjust pilot flame.
Clean burner ports (do not enlarge).
Check gas supply pressure.
Supply piping is too small. Consult local gas
company or competent installer.
Failure to Ignite Open all manual gas valves.
Set thermostat to higher telnperature.
Burner won't
mm off
Incorrect gas
input
Not enough heat
lbo much heat
Pilot and main
burner go out
during normal
operation
POSSIBLE CAUSES
1. Defective operator section of valve. 1.
2. Burner orifice too large. 2.
3. If installed above 2.000 ft. 3.
1. Clogged burner ports. 1.
2. Obstruction around vent cap. 2.
1. Gas leak. 1.
1. Pilot flame too small. 1.
2. Burner ports clogged at pilot. 2.
3. Low gas pressure. 3.
4. Pilot decreases in size when 4.
main burners come on.
1. Main gas off 1.
2. Thermostat not set high enough 2.
to call for heat.
3. Clogged burner orifice. 3.
4. Thermostat wired wrong or defective. 4.
5. Defective valve. 5.
1. Detective or damaged thermostat 1.
wire, or thermostat.
2. Thermostat location. 2.
3. Defective or sticking valve. 3.
4. Excessive _as pressure. 4.
1. Gas input not checked. 1.
2. Clogged orifice. 2.
1. Furnace undersized.
2. Thermostat set too low. 2.
3. Incorrect supply pressure. 3.
1. Thermostat set too high. 1.
2. Combination control valve stuck open. 2.
1. Weak powerpile or thermocouple. 1.
2. Input too high. 2.
3. Cover around pilot lighter hole not 3.
air tight.
4. Vent tubes not properly installed 4.
or sealed.
5. Incorrect vent tubes.
Clean burner orifice, (do not enlarge).
Check wiring, jump across thermostat terminals
at valve, if valve opens - re-check wires, replace
therlnostat.
Replace valve.
Can be checked by removing wire ti'om valve
terlninal. If valve goes off; replace wire or
thermostat.
Follow instructions, check location.
Clean or replace valve.
Contact utility suppl_iin_ _as.
Re-check gas input.
Clean orifice with a smooth wood toothpick,
do not enlarge.
1. This is especially true when a dwelling or room
is enlarged. Have the heat loss calculated and
compare to furnace output. Your gas company can
supply you with this information. If furnace is
undersized, replace with correct size unit.
Raise temperature setting.
Check supply pressure.
Lower temperature setting.
Replace combination control valve.
Check millivolta_e and replace if low.
Check input rate.
Tighten wing nuts securing cover and sight glass.
Check and replace gasket if needed.
Follow instructions. Check both exhaust and
air intake tubes, and vent cap. Be sure all
gaskets are in place and properly sealed. Use
only tubes and vent cap supplied. Do not alter
vent tubes or cap.
5. Replace with correct tubes.
Page 19

IMPORTANT SAFETY BULLETIN ON YOUR GAS CONTROL AND PILOT LIGHT
SYSTEM FOR HEATING EQUIPMENT
WHAT YOU DON'T KNOW CAN HURT YOU.
Your pilot light system has been designed for safe and reliable operation. Although safety mechanisms are
built-in, the potential for hazard exists. This information is intended to help you avoid these hazards.
YOUR GAS CONTROL AND PILOT LIGHT
SYSTEM
Your gas control and pilot light system has a safety
device whose purpose is to shut-off the gas supply
to the appliance if the pilot light goes out. If you
have trouble lighting the pilot or keeping it lit, itmay
mean that this safety device is warning you that there
isa problem withyour system. Inspection andrepairs
or replacement must be made by a trained gas service
technician.
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•
• hnmediately call your gas supplier from a
neighbor's phone• Follow the gas supplier's
instructions.
• If you cannot reach your gas supplier, call the
fire department•
Installation and service must be performed by a
qualified installer, service agency or the gas
supplier•
Do not store or use gasoline or other flammable
vapors and liquids in the vicinity of this or any other
appliance.
CRITICAL SAFETY POINTS TO REMEMBER.
TAMPERING IS DANGEROUS
The pilot safety system may also not work if you do
not follow the lighting instructions carefully or if you
tamper with the gas control that you use to light the
pilot• Tampering with the gas control, particularly
with tools, can damage the safety mechanism in the
control and can allow gas to leak. This can result in
a fire or explosion causing property damage, personal
injury or death.
IF YOU SMELL GAS, DON'T LIGHT IT
Your gas has been odorized so that you can
smell it. Always smell around for gas before
lighting your appliance•
Sniff for L.P.-gas at floor level• LP-gas is
heavier than air and may temporarily exist at
floor level.
IF YOU CAN'T LIGHT IT,
DON'T FIGHT IT!
Association gama
• If you smell gas, do not attempt to light the
pilot. Do not cause a spark by turning on or off
electrical switches or appliances or by using the
phone. Turn off the gas to the appliances and
call your gas supplier from another location.
• If your gas control has gotten wet as the result
of flooding or other wetting, it must be replaced
immediately by a trained gas service technician.
Water can lead to damage of the internal safety
mechanism in the gas control and can create a
hazardous condition.
THIS IS NOT AN ADVERTISEMENT