Louisville Tin and Stove Furnace 90N30A User Manual

Gas-Fired Vented  
FLOOR FURNACE  
P/N 74521  
REV. 08/97  
INSTALLATION AND  
OPERATING INSTRUCTIONS  
R
MODEL NUMBERS  
MILLIVOLT CONTROL SYSTEM  
NATURAL GAS  
90N30A  
90N50A  
90N65A  
90N75A  
WARNING: If the information in this manual is not 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  
inyourbuilding.  
Immediatelycallyourgassupplierfromaneighbor’sphone.  
Follow the gas supplier’s instructions.  
If you cannot reach your gas supplier, call the fire  
department.  
The coating selected to provide  
longer life to the heat exchanger  
may smoke slightly upon initial  
firing. Please provide adequate  
ventilation if this occurs.  
- INSTALLATION AND SERVICE MUST BE PERFORMED  
BY A QUALIFIED INSTALLER, SERVICE AGENCY OR  
THE GAS SUPPLIER.  
WARNING: Operation of this furnace when not connected to a properly installed  
and maintained venting system can result in Carbon Monoxide (C.O.) poisoning  
and possible death. For your safety, this furnace and the venting system should  
be inspected at least annually by a qualified service person.  
THIS UNIT IS NOT APPROVED FOR INSTALLATION IN MOBILE HOMES,  
GREENHOUSES, OR ENVIRONMENTS INVOLVING DUSTY, WET, CORROSIVE, OR  
EXPLOSIVE CONDITIONS. SUCH CONDITIONS WILL INVALIDATE THE WARRANTY  
AND MAY CREATE UNSAFE CONDITIONS.  
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SAFETY RULES - Continued  
2.  
FOLLOW ALL APPLICABLE CODES AND ORDINANCES. IF THERE ARE NONE, FOLLOW THE  
INSTALLATION STANDARDS, LATEST EDITION OF NFPA54/ANSI.Z223.1. A COPY MAY BE OBTAINED  
FROM THE AMERICAN GAS ASSOCIATION, 1515 WILSON BLVD., ARLINGTON, VA. 22209, OR THE  
NATIONAL FIRE PROTECTION ASSOCIATION, BATTERYMARCH PARK, QUINCY, MA. 02269.  
DO NOT INSTALL THIS FLOOR FURNACE IN A RECREATIONAL VEHICLE, TRAILER OR MOBILE HOME.  
DO NOT OPERATE THIS FLOOR FURNACE UNLESS IT IS CONNECTED TO A PROPERLY INSTALLED AND  
MAINTAINED VENT SYSTEM. DO NOT EXHAUST FLUE GASES UNDER THE FLOOR FOR ANY REASON.  
BE SURE THIS FLOOR FURNACE IS EQUIPPED FOR THE TYPE GAS YOU INTEND TO USE.  
LOCATE THE THERMOSTAT IN A ROOM OR SPACE THAT CANNOT BE SEPARATED BY A DOOR OR  
OTHER MEANS FROM THE ROOM OR SPACE IN WHICH THE FLOOR FURNACE GRILL IS INSTALLED.  
NEVER USE A MATCH, CANDLE, FLAME OR OTHER SOURCE OF IGNITION TO CHECK FOR GAS LEAKS.  
USE ONLY SOAPY WATER OR LIQUID DETERGENT.  
3.  
4.  
5.  
6.  
7.  
8.  
9.  
ADEQUATE AIR FOR COMBUSTION AND VENTING MUST BE PROVIDED.  
IF IT IS SUSPECTED THAT RISING WATER OR SEEPAGE MAY ENTER THE FLOOR FURNACE, TURN OFF  
THE GAS IMMEDIATELY. DO NOT USE THIS FLOOR FURNACE IF ANY PART HAS BEEN UNDER WATER.  
IMMEDIATELY CALL A QUALIFIED SERVICE TECHNICIAN TO INSPECT THE FLOOR FURNACE AND TO  
REPLACE ANY PART OF THE CONTROL SYSTEM AND ANY GAS CONTROL WHICH HAS BEEN UNDER  
WATER.  
10.  
11.  
HAVE YOUR FLOOR FURNACE AND VENT SYSTEM INSPECTED AT LEAST ANNUALLY BY A QUALIFIED  
SERVICETECHNICIAN.  
THEGRILLBECOMESHOTWHENTHEFLOORFURNACEISINOPERATION. CHILDRENMUSTBECLOSELY  
SUPERVISEDWHENINTHEPRESENCEOFANYHEATINGAPPLIANCE. CONTACTWITHBARESKINMAY  
RESULTINSEVEREBURNS. KEEPCHILDRENOFFTHEGRILL.  
12.  
BEFORECLEANINGORSERVICINGTHEFLOORFURNACE, TURNOFFTHEGASANDALLOWITTOCOOL.  
THISWILLPREVENTBURNS.  
13.  
14.  
ALWAYSLEAVETHEGRILLINPLACEEXCEPTWHENCLEANINGORSERVICINGTHEFLOORFURNACE.  
NEVER OPERATE THE FLOOR FURNACE WITHOUT THE SIGHT GLASS ASSEMBLY IN PLACE, OR WITH  
THEGLASSBROKENORMISSING.  
HELPFUL INSTALLATION INFORMATION  
Do not attempt to heat through more than one doorway in any direction to adjoining rooms.  
Always over-estimate the amount of heat required rather than under-estimate it. Always use the next size floor furnace above  
your actual heating requirements.  
Seal all cracks around windows, doors, and attic access doors or significant heat loss will occur.  
INSTALLATION REQUIREMENTS  
Listed below are steps that are part of a floor furnace installation. You must see that each step is followed closely so that the  
floor furnace will provide maximum efficiency with safe operation.  
YOUMUST:  
1. Locate the floor furnace in the best available space for safe and efficient operation.  
2. Provide fresh air for combustion and venting.  
3. Cut and frame the floor opening so that the floor furnace fits properly.  
4. Attach the draft hood and connect the vent pipe in compliance with applicable codes.  
5. Connect an adequate gas supply to the floor furnace.  
6. Select the best location for the thermostat.  
7. Check and adjust the floor furnace for safe and efficient operation.  
If you have any doubts about the correct way to install a floor furnace, contact local authorities or agency, or your gas supplier.  
If local or state codes require that your floor furnace installation be inspected by local authorities, do so after the floor furnace  
is installed and before it is put into service.  
Page 3  
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FLOOR FURNACE LOCATION  
Choose a central location such as a hallway but where occupant traffic is minimal and where there is at least 18 inches of  
room from two adjoining sides of the grill to the nearest wall so that occupants may pass without stepping on the grill. See  
Figure Number 1.  
WALL  
Bedroom  
Bath  
Kitchen  
Vent Pipe  
8Minimum  
Thermostat  
Bedroom  
18” Minimum  
Living Room  
FIGURE 2  
FIGURE 1  
Give consideration to available air for combustion, location in relation to chimney or vent system, thermostat location,  
clearance under floor, clearance to combustibles, and heat circulation. Any open foundation is unacceptable as wind can  
cause pilot outage and reduced efficiency. Keep furniture, drapes, doors, and other combustible materials at least 12 inches  
from the edge of the grill. Never locate the floor furnace closer than 8 inches to a wall and never in a corner. See Figure 2.  
Two adjoining sides of the floor furnace must have a minimum clearance of 18”. See Figure 1.  
After selecting a location in the home, go beneath the floor and check  
the position of the floor furnace in relation to joists, supporting  
columns, electric wires, water pipes and walls. There must be a minimum  
of 6 inches clearance between the top of the draft hood and floor  
joists. There must also be at least 6 inches clearance between the  
bottom of the floor furnace and the ground. See Figure 3.  
FLOOR  
JOIST  
FLOOR  
JOIST  
FLOOR  
FURNACE  
6” Minimum  
Draft  
Hood  
In order to find the location beneath the floor it may be necessary to  
drill a 1/16 inch hole through the floor approximately in the center of  
the selected floor furnace location to use as a reference point when  
measuring under the floor.  
Ground  
Level  
6” Minimum  
FIGURE 3  
FRESH AIR FOR COMBUSTION AND VENTING  
Adequate air for combustion and venting must be provided. Any reduction in the necessary amount of fresh air  
can result in an oxygen starved flame that emits Carbon Monoxide (C.O.) an odorless, colorless gas  
that can cause serious injury or death. A ventilated crawl space will usually provide enough fresh air. However, you  
must check to see that there is 1 square inch of free area of ventilation opening for each 1,000 BTU’s input of your floor furnace.  
EXAMPLE: 50,000 BTU floor furnace ) 1,000 = 50 square inches. If another gas burning appliance such as a water heater is  
installed within the same crawl space or basement, add the B.T.U.’s of the other appliance to those of the floor furnace before  
calculating the total ventilation needed. EXAMPLE: 50,000 B.T.U. floor furnace plus 40,000 B.T.U. water heater equals 90,000  
B.T.U. ) 1,000 = 90 square inches. To compensate for the loss of square inches of ventilation due to the use of louvers, grills,  
or screens add approximately 50% to the square inches calculated. Screen all openings with mesh not less than ¼ inch to  
prevent animals or insects from entering the crawl space.  
All type “B” vents shall extend in a generally vertical direction with offsets not exceeding 45 degrees, except that a vent system  
having not more than one 60 degree offset may be allowed.  
Any angle greater than 45 degrees from the vertical is considered horizontal. The total horizontal run of a vent plus the  
horizontal vent connector shall be not greater than 75 percent of the vertical height of the vent.  
Any offsets used should be as far above the drafthood as possible to allow a venting action to begin before any restriction is  
encountered.  
Page 4  
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CUTTING THE FLOOR OPENING  
Consult the specification chart on Page 2 for the correct floor opening size for the floor furnace to be installed. Lay out the  
opening size on the floor by using masking tape or cutting a piece of cardboard to the opening size. The opening must be cut  
square. If you have determined that there is nothing under the floor to interfere with the installation, you are now ready to cut  
the opening. Start by drilling ½ inch holes inside the lines of each corner. Use a keyhole saw or a properly grounded saber saw  
to cut along the lines making sure to keep the lines straight and the corners square. If the opening dimensions are not correct,  
it may be difficult to fit the floor furnace into the opening. Forcing the floor furnace through the opening may create stresses  
that cause the floor furnace to be excessively noisy.  
Most installation will require cutting a floor joist. Cut the floor joist  
JOIST  
so that double headers of the same size lumber can be used to frame  
around the floor furnace. Double headers are necessary to maintain  
the strength of the floor. See Figure 4.  
DOUBLE  
HEADER  
FLOOR  
FURNACE  
OPENING  
If the clearance between the bottom of the floor furnace and the  
ground is not adequate, dig a pit that will provide clearances of at  
least 6 inches under the floor furnace, 18 inches on the end where  
the gas valve is located and 12 inches on the other three sides.  
Slope the sides of the pit to prevent dirt from caving into the pit. See  
Figure 5.  
FIGURE 4  
FLOOR  
JOIST  
FLOOR  
JOIST  
FLOOR  
FURNACE  
6” Minimum  
DRAFT  
HOOD  
18”  
Minimum  
12”  
Minimum  
6” Minimum  
FIGURE 5  
If there is any possibility that water may accumulate in the pit, a drain must be provided. If a drain cannot be provided, fabricate  
a waterproof pan of at least 16 ounce per square foot sheet copper or a suitable substitute. Size the pan to provide 6 inches  
clearance to the bottom of the floor furnace, 18 inches on the side where the gas valve is located and 6 inches on the other three  
sides. The sides of the pan must extend at least 4 inches above the ground. Anchor the pan to prevent it from floating  
up against the bottom of the floor furnace when water is present. Failure to do so may result in the pan  
rising to seal off air for combustion and venting. If this occurs, carbon monoxide (C.O.) a colorless,  
odorless gas that can cause serious injury or death may be formed.  
SETTING THE FLOOR FURNACE  
Lay aside the grill and package containing the thermostat, wires, etc., grasp two opposite sides of the outer casing and lower the  
floor furnace gently through the opening. Support the furnace evenly by the flange at the top of the outer casing. Trim back  
carpet, padding, and other types of floor covering so that the entire flange rests directly on the floor. If not evenly supported  
on all four sides, stresses may be created that cause excessive expansion and contraction noises as the floor furnace heats and  
cools. Anchor the floor furnace in place by driving two galvanized roofing nails through each side of the outer casing into the  
double headers approximately 1 inch below the flange. Place the grill into position making sure it lays flat against the outer  
casing flange. Leave the grill in place until time to light the furnace to keep occupants from falling into the furnace.  
Page 5  
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INSTALLING THE DRAFT HOOD  
The draft hood must be installed in the same atmospheric pressure zone as  
the combustion air inlet. The draft hood is packed in its own carton within  
the master pack. Make sure the draft hood received is the correct one for  
the floor furnace being installed. Included in the carton are two rope-like  
gaskets and 7 sheet metal screws. Begin by pressing the rope-like gasket  
material into the groove provided around the two male vent outlets on the  
floor furnace. See Figure 6.  
GASKET  
MATERIAL  
Slip the two female couplings in the draft hood over the male outlets  
extending through the outer casing, making sure the gaskets remain in  
place. Press the draft hood tight against the casing and use the 7 sheet  
metal screws to secure it tightly. All 7 screws must be used to prevent  
leakage of vent gases. Never install or operate a floor furnace  
without a draft hood. To do so could result in serious injury,  
property damage or death.  
FIGURE 6  
CONNECTING THE VENT  
Refer to the specifications on Page 2 for the correct vent pipe size. Familiarize yourself with local codes or contact authorities  
to determine the approved material and method of installing the vent. NOTE: An existing vent that has worked for years may  
not be adequate for todays design because of higher efficiency requirements that result in lower stack temperatures.  
Improper or unsafe venting presents a hazard that may result in property damage, bodily injury or loss  
of life. Listed below are some guidelines to observe when installing the vent system.  
1. Never reduce the vent pipe to a size smaller than the outlet on the draft hood.  
2. Never run pipe more than 15 feet horizontally.  
3. The total horizontal run of a vent plus the horizontal vent connector shall be not greater than 75 percent of the  
vertical height of the vent.  
4. Slope horizontal pipe upwards at least ¼ inch per lineal foot.  
5. Do not use more than one elbow. An elbow restricts the flow of vent gases by approximately 10%.  
6. Use a noncombustible thimble when connecting vent pipe to a masonry chimney.  
7. Do not insert vent pipe farther than ¼ inch into the interior of the chimney.  
8. Single wall pipe must not be used.  
9. Never connect the vent pipe to any chimney or vent system serving a solid fuel-burning appliance.  
10. If another appliance is being vented through the vent system with the floor furnace, the vent pipe must be  
increased to compensate for the additional load.  
11. Never install any kind of damper in the vent system.  
12. Do not use transite or any other type of ceramic pipe for venting.  
Class “B” double wall pipe is acceptable to most codes, and if installed in accordance with the pipe manufacturers instructions  
provides the safest and most efficient vent system. Class “B” pipe has an integral lock for securing sections together. These  
locks must be properly fitted together. Fasten pipe to draft hood using at least three self-tapping sheet metal screws at equal  
intervals around the circumference of the pipe. Support horizontal pipe at three-foot intervals with metal strapping attached to  
joists.  
The floor furnace you have selected was carefully designed to operate both safely and efficiently when vented with the proper  
size vent listed for each furnace on Page 2 of these instructions. We do not recommend doing so, but if you must vent into a  
masonry chimney use the following instructions.  
Continued – next page  
Page 6  
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CONNECTING THE VENT - Continued  
1/4”  
SAFE  
FIGURE 7A  
UNSAFE  
FIGURE 7B  
RECOMMENDED  
FIGURE 7C  
If the floor furnace is vented into a masonry chimney, the chimney must be inspected to determine that it is clear and free of  
obstructions and that it is safe for the intended use. The inside of the chimney must be at least 6 inches in diameter or 6 inches  
by 6 inches if rectangular. Insert the vent pipe into the chimney through a masonry or noncombustible corrosion-resistant  
thimble of the correct diameter. Do not push the pipe farther than ¼ inch into the inside of the chimney. See Figure 7A. Pushing  
the pipe farther into the inside of the chimney may cause partial or complete blockage as illustrated in Figure 7B.  
Even following these instructions you may still have a venting problem because of the larger area to be heated inside the  
chimney. This could cause pilot outage, odors coming from the furnace, or noise due to excessive heat not being vented out of  
the combustion chamber. If you experience any of these problems, we recommend running the proper size “B” type vent pipe  
down the chimney and connecting to the horizontal run of vent pipe with a 90-degree elbow inside the chimney. See Fig. 7C.  
Extend the vent system at least 3 feet above the point where it exits the roof and at least two feet higher than any part of the roof  
system within 10 feet. Terminate with a listed or approved cap. See Figure 9.  
10OR  
LESS  
MORE THAN  
10 FEET  
10’  
RIDGE  
CHIMNEYOR  
METAL PIPE  
3’ MINIMUM  
2’ Minimum  
RIDGE  
2’ Minimum  
CHIMNEYOR  
METAL PIPE  
3’ MINIMUM  
FIGURE 9  
FIGURE 9  
Page 7  
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If more than one gas appliance is vented through  
a common vent system, the vent should be  
increased in size to accommodate the increased  
load. Consult your local code or the tables in the  
latest edition of NFPA54/ANSI.Z223.1 for the  
correct size. If no local codes apply, use the  
following alternate method for sizing a vent  
connected to more than one appliance. The  
effective area of the vent must be not less than  
the area of the largest vent connection plus 50  
percent of the areas of additional draft hood  
outlets.  
CONNECTING THE VENT - Continued  
Typical Installation Using  
Class “B” Vent Pipe  
1. Adequate clearances around floor furnace.  
2. Draft Diverter 6” from combustibles.  
3. Adequate clearances around vent pipe.  
4. Horizontal vent pipe sloping upward 1/4” per foot.  
5. Pipe supported with metal straps.  
6. Adequate height of vent system.  
7. Listed vent cap.  
The homeowner appreciates neatness in  
workmanship and the neat installation usually  
functions better than the sloppy one. Double  
check your work to verify that all clearances around  
the floor furnace and vent system are adequate  
and that the vent system is installed to code or  
pipe manufacturers specifications. See Figure 10.  
FIGURE 10  
GAS SUPPLY AND PIPING  
The gas piping system must meet the requirements of local codes or the specifications of the servicing gas supplier. It must  
have adequate capacity to supply the floor furnace and any other appliance within the home with enough gas to maintain the  
full rated capacities without excessive pressure drop when all appliances are operating at full rate.  
GASTUBINGANDPIPESIZES-CAPACITY -  
*L.P. GAS  
GAS PIPE SIZES - CAPACITY - *NATURAL GAS  
Length of  
Pipe/Tubing  
**Copper Tubing **Steel Pipe  
Outside Diameter Inside Diameter  
Length of  
Pipe - Feet  
INSIDE PIPE DIAMETER  
1/2” 3/4” 1”  
Feet  
10  
20  
30  
40  
50  
60  
1/2”  
3/4”  
1/2”  
3/4”  
10  
20  
30  
40  
50  
60  
132,000 278,000 520,000  
92,000 329,000 275,000 567,000  
92,000 190,000 350,000 Capacity  
73,000 152,000 285,000 B.T.U.  
63,000 130,000 245,000 Per Hour  
56,000 115,000 215,000 Input  
50,000 105,000 195,000  
62,000 216,000 189,000 393,000 Capacity  
50,000 181,000 152,000 315,000 B.T.U.  
41,000 145,000 129,000 267,000 Per Hour  
37,000 131,000 114,000 237,000 Input  
35,000 121,000 103,000 217,000  
*Based on heating value of 1,000 btu per cubic foot (specific gravity  
of 0.6) @ 0.5 PSIG and a pressure drop of 0.3 inch water column.  
*Undiluted Liquefied Petroleum Gas @ 11 inches water column inlet  
pressure. Based on a pressure drop of 0.5 inches water column.  
**Copper tubing must comply with limitations of NATIONAL FUEL  
GAS CODE reference 2.6.3 metallic tubing.  
***Steel pipe should be of at least standard weight (Schedule 40).  
Support the piping or tubing at regular intervals with  
metal pipe strapping. See chart below.  
Nominal Steel  
Pipe Size  
Spacing of  
Supports  
Nominal size of  
tubing O.D.  
Spacing of  
Supports  
1/2”  
3/4” or 1”  
6’  
8’  
1/2”  
5/8” or 3/4”  
4’  
6’  
Where local conditions include earthquake, tornado, unstable ground or flood hazards, give special consideration to  
increased strength and flexibility of piping supports and connections. Consult local authorities for recommendations.  
All unused openings in the piping system must be securely closed gas-tight.  
Page 8  
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CONNECTING THE GAS PIPING  
Refer to Figure 11 for the basic fittings you will need  
at the furnace.  
1. Use black iron or steel pipe and fittings or other  
pipe and fittings that are approved by local codes.  
2. Use pipe joint compound that is resistant to the  
action of Liquefied Petroleum (L.P.) Gas or to any  
other chemical constituents of the gases to be  
conducted through the piping only on male  
threads.  
3. Use two wrenches when making the connection  
to the valve to keep from bending the mounting  
bracket or manifold pipe. Do not overtighten as  
damage to the valve can occur.  
GAS VALVE  
TEE  
1/8” N.P.T. PLUG  
GROUND  
JOINT UNION  
4. Provide a 1/8” nominal pipe thread (NPT) plugged  
tapping for test gauge connection immediately  
upstream of the gas supply connection to the  
floor furnace.  
MANUAL VALVE  
SUPPLY  
5. Provide a sediment trap at least 6 inches long to  
trap dirt and moisture. Provide space to permit  
cleaning or emptying.  
6. Use a ground joint union.  
7. Install an approved manual shut-off valve.  
FIGURE 11  
ADDITIONAL L.P. GAS REQUIREMENTS  
8.  
9.  
Have all connections made at the storage tank by a licensed L.P. Gas installer.  
Have L.P. Installer check all lines, piping, and connections from the storage tank to the floor furnace when the floor  
furnace is connected to the storage tank.  
10.  
The regulator on the storage tank should be set at 11 inches water column.  
CHECKING THE GAS PIPING  
All joints must be tested for leaks by applying pressure to the piping system. If the test pressure is equal to or less than ½  
PSIG the floor furnace must be isolated from the gas supply piping system by closing the manual gas shut-off valve on the  
floor furnace. If the test pressure exceeds ½ PSIG, the floor furnace and its manual gas shut-off valve must be disconnected  
from the gas piping system before testing. Failure to do so may result in damage to the pressure regulator  
in the gas valve resulting in overfiring. Overfiring can result in combustion chamber failure, property  
damage, bodily injury or death.  
Use a mixture of soap and water or liquid detergent to check each joint. Leaks will be indicated by bubbles forming. Correct  
even the smallest leak at once. Since some soaps may cause corrosion, or stress cracking, rinse the gas piping exterior with  
water after testing to remove the soap.  
WARNING  
Never use a match, candle, open flame or other method which could provide a source of ignition to  
test for leaks. To do so may result in property damage, bodily injury or death.  
CAUTION: Label all wires prior to disconnection when servicing controls. Wiring errors can cause improper and dangerous  
operation. Verify proper operation after servicing.  
Page 9  
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CHECKING THE GAS PIPING - CONTINUED  
Limit Switch Wires  
When you have determined that there are no leaks in the gas  
piping system you may purge the system of air. Disconnect the  
pilot supply tubing from the right side of the valve. See Figure  
12.  
Turn the knob on the gas valve to the pilot position. Press the  
knob down and hold until you smell gas at the pilot supply  
opening. Release the knob and turn it to the off position.  
Reconnect the pilot supply tubing and check for leaks with soap  
and water or liquid detergent.  
Pilot  
Adjustment  
Pilot Supply  
Tubing  
WARNING  
When purging gas piping, the area around the floor furnace must  
be well ventilated to allow any gas to dissipate. Liquid Petroleum  
(L.P.) Gas is heavier than air and may puddle in low places under  
the floor. Check thoroughly to determine that no gas is present  
before lighting the floor furnace. Failure to do so could result in  
property damage, bodily injury or death.  
Pressure Tap  
FIGURE 12  
THERMOSTAT INSTALLATION  
Follow the instructions included with the thermostat. Locate the thermostat approximately five feet above the floor. Always  
mount the thermostat on an inside wall where it won’t be affected by heat or cold sources such as direct sunlight, televisions,  
fireplaces, hidden hot or cold water pipe, drafts, etc. The thermostat must never be installed in an adjoining room where a door  
can be closed between the thermostat and floor furnace. This floor furnace is equipped with a self-generating control system.  
Never connect to a 24-volt transformer or to the household electric system. Do not use more thermostat wire than is included  
with the floor furnace.  
WIRE AS INDICATED: (See Figure 13)  
Step 1. Connect black limit switch wire to black thermostat wire using wire nut. (Nut not furnished).  
Step 2. Connect white thermostat wire to terminal on gas valve marked “TH PP”.  
Step 3. Connect white limit switch wire to terminal on gas valve marked “TH”.  
Step 4. Connect the thermostat wires to the thermostat following the instructions provided by the thermostat manufacturer.  
Limit  
Switches  
POWERPILE  
GENERATOR  
Thermo-  
stat  
Red  
TERMINALBLOCK  
ON GAS VALVE  
TH TP  
TP  
TH  
Terminal Block  
FIGURE 13  
Page 10  
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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 instruc-  
tions 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.  
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.  
Immediately 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.  
WHATTODOIFYOUSMELLGAS:  
Do not try to light any appliance.  
Do not touch any electric switch; do not use any  
phone in your building.  
Immediately call your gas supplier from a neighbor’s  
phone. Follow the gas supplier’s instructions.  
If you cannot reach your gas supplier, call the fire  
LIGHTING INSTRUCTIONS  
1. STOP! Read the information on the safety label.  
2. Set thermostat to lowest setting.  
3. Remove the floor grille.  
Pilot  
Burner  
Pilot is located  
on the side of  
and toward  
control end  
of burner  
4. Place the furnace key on the control rod, push down  
slightly and turn clockwise  
to “ALL OFF”.  
NOTE: Control  
rod cannot be  
turned from  
“PILOT” to “ALL  
OFF” unless the  
control rod is  
pusheddown  
slightly.  
BURNER  
Control  
Rod  
9. Locate the red piezo igniter button beside the control rod.  
10. Press down on the control rod with the furnace key.  
Immediately begin a series of pushing and releasing the  
red piezo igniter while observing the pilot through the sight  
glass opening, continue to spark until pilot is lit or use the  
lighter rod with match. Continue to hold the control rod  
down for about one (1) minute after the pilot is lit. If it goes  
out, repeat steps 4 through 10.  
ALL OFF  
5. Wait five (5) minutes to clear out any gas. Then  
smell for gas, including near the floor. If you smell  
gas, STOP! Follow “B’ in the information on the  
safety label. If you don’t smell gas, go to the next  
step.  
6. Remove the sight glass assembly from the opening  
on top of the heat exchanger.  
7. Locate the pilot burner looking down through the  
sight glass opening.  
If control rod 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 control  
rod to “OFF” and call your service technician or gas  
supplier.  
11. Replace the sight glass assembly and turn the control rod  
counterclockwise to “BURNER” position. Remove  
furnace key and replace the floor grille.  
12. Set thermostat to desired temperature.  
8. Turn the control rod counterclockwise  
the pointer is on “PILOT”.  
until  
TO TURN OFF GAS TO APPLIANCE  
1. Set the thermostat to it’s lowest setting.  
2. Allow floor grille to cool, then remove.  
3. Place furnace key on control rod, push slightly and  
turn clockwise  
to “ALL OFF”. Do not force.  
4. Replace floor grille.  
Page 11  
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VENT SYSTEM  
After the floor furnace has been burning for five minutes, hold a match or candle under the draft hood at the air intake area. If  
the vent system is working properly, the flame will be pulled into the air inlet of the draft hood. If the vent system is not working  
properly, turn the floor furnace off immediately and refer to the installation instructions or local code for proper installation  
procedure.  
ADJUSTING THE PILOT FLAME  
PILOT FLAME ADJUSTMENT  
Pilot flame should envelop 3/8 to  
1/2 inch of the tip of the generator.  
RefertoFigure17forthecorrectsizepilotflame. Ifadjustmentisnecessary,  
refer to Figure 12 for the location of the pilot adjustment screw. Using a  
standard screwdriver, remove the pilot adjustment screw cover. Insert a  
small screwdriver into the pilot adjustment screw and turn clockwise  
decrease the flame or counterclockwise to increase the flame.  
to  
3/8 to  
1/2”  
If the flame is too low, the safety pilot may cause all of the gas to be cut  
off. NOTE: The gas supply to the pilot is unregulated. When line pressure  
exceeds 7” Natural Gas, or 11” L.P. Gas, a pilot adjustment must be  
made.  
BURNER ORIFICE  
This appliance is orificed at the factory for elevations up to 2,000 feet. If  
installed above 2,000 feet, the BTU input must be reduced 4% per 1,000  
feet. See the following orifice chart for the proper orifice for a specific  
elevation.  
FIGURE 17  
L.P. GAS  
NATURAL GAS  
SPECIFICELEVATIONS  
SPECIFICELEVATIONS  
Model No.  
0 to 2,000 - 4,000 - 6,000 - 8,000–  
2,000’ 4,000’ 6,000’ 8,000’ 10,000’  
Model No.  
0 to 2,000 - 4,000 - 6,000 - 8,000 –  
2,000’ 4,000’ 6,000’ 8,000’ 10,000’  
90P30A  
90P50A  
90P65A  
1/16 53  
53  
49  
45  
54  
50  
47  
54  
51  
48  
90N30A  
90N50A  
90N65A  
38  
30  
26  
41  
31  
28  
42  
31  
29  
43  
32  
30  
44  
35  
30  
47  
43  
49  
44  
ORDER KIT #49800 44-1 HIGH ALTITUDE KIT  
ORDER KIT #49800 44-1 HIGH ALTITUDE KIT  
90P75A  
51  
52  
52  
53  
54  
90N75A  
33  
36  
37  
38  
41  
ORDER KIT #49850 2287-2 HIGH ALTITUDE KIT  
ORDER KIT #49850 2287-2 HIGH ALTITUDE KIT  
ADJUSTING THE BURNER  
After the floor furnace has been burning 15 minutes, remove the bottom pan from the outer casing exposing the complete  
burner assembly. Loosen the screw at the bottom side of the sliding air shutter. Slide the air shutter closed until yellow tips  
start to appear at the top of the flame. See Figure 19. (75,000 BTU floor furnace has two burners, both of which may need  
adjustment). Now open the shutter slightly beyond the point that the yellow disappears and the flame burns blue. (See  
Figure 20). Airborne dust particles may cause flashes or streaks of yellow flame as they are drawn into the flame but will  
have no effect on the efficiency of the floor furnace. If you are satisfied that the burner is properly adjusted, tighten the set  
screw to lock the shutter in position. Replace the bottom pan. Check air shutter setting at least twice each season to assure  
that changing conditions are not causing yellow tipping.  
Manifold Tube  
Sliding Air Shutter  
YELLOW  
BLUE  
BURNER  
CORRECT FLAME ADJUSTMENT  
IMPROPER FLAME ADJUSTMENT  
Set Screw  
FIGURE 18  
FIGURE 19  
FIGURE 20  
Page 12  
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ADJUSTING THE BURNER – Continued  
If difficulty in adjusting the burner is experienced, it may be the result of incorrect gas supply pressure or manifold pressure.  
Pressure can only be checked and adjusted by a trained service technician using instruments designed for that purpose.  
WARNING: Do not attempt to change pressure settings without proper training and instruments.  
To do so may cause your floor furnace to malfunction resulting in property damage, bodily injury, or  
death.  
The following information is provided for use by a trained service technician with measuring instruments.  
MinimumInletPressure, NaturalGas…………………………………………………….  
Minimum Inlet Pressure, Liquefied Petroleum (L.P.) Gas………………………………..  
4.5 Inches Water Column  
11.0 Inches Water Column  
MaximumInletPressureforNaturalGas…………………………………………………  
Maximum Inlet Pressure, Liquefied Petroleum (L.P.) Gas……………………………….  
7.0 Inches Water Column  
14.0 Inches Water Column  
(If the inlet pressure is found to exceed 14.0 inches water column, check the performance of the control valve thoroughly as  
damage may have occurred. If manifold pressure cannot be adjusted, replace the control valve).  
ManifoldPressure, NaturalGas…………………………………………………………..  
Manifold Pressure, Liquefied Petroleum (L.P.) Gas……………………………………..  
3.5 Inches Water Column  
10.0 Inches Water Column  
OPTIONAL OPERATION  
Your floor furnace has been designed to meet all safety requirements of the American National Standards Institute and  
government regulations by offering two modes of operation.  
OPTION 1. Place the furnace key on the damper control  
rod (See Figure 21) and turn counterclockwise  
until the warning flag is concealed and the damper is  
open. Your floor furnace will now cycle on and off  
maintaining a moderate grill temperature and an even  
room temperature. Your floor furnace will function best  
on this setting during mild weather.  
OPTION 2. Turn the furnace key clockwise  
until the  
warning flag reading “WARNING – GRILL IS HOT – Keep off –  
can cause burns” is visible and the damper is closed. The limit  
control will now cease to function and the floor furnace will now  
put out the maximum amount of heat until the room temperature  
reaches the thermostat setting. Use this option only in extremely  
cold weather. If furnace continues to cycle on limits, assure that  
damper door is 100% closed by adjusting damper door pin if  
necessary.  
OPTION 1  
In mild weather,  
operate furnace  
with damper open.  
Furnace will cycle  
on and off main-  
OPTION 2  
In extremely cold  
weather, close damper  
(which exposes warning  
plate). Furnace will then  
put out maximum  
Damper  
Open  
taining a moderate  
grill temperature  
Damper  
Closed  
amount of heat until  
room temperature  
and an even room  
temperature.  
reaches setting on wall  
thermostat.  
FIGURE 21  
WARNING  
FIGURE 22  
FLOOR FURNACE GRILLS BECOME  
HOT WHEN FURNACE IS IN  
LIMIT SWITCH  
TEMPERATURE SETTINGS  
90{N,P}30A……………………..  
90{N,P}50A……………………..  
90{N,P}65A……………………..  
90{N,P}75A……………………..  
OPERATION. CONTACT OF BARE  
SKIN WITH GRILL MAY RESULT IN  
SEVERE BURNS. KEEP CHILDREN  
OFF, PROVIDE FENCE OR REGISTER  
GUARD FOR THEIR PROTECTION.  
140N  
160N  
180N  
170N  
Page 13  
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MAINTENANCE INSTRUCTIONS  
WARNING  
Do not use any kind of solvent or cleaning  
fluid to clean your floor furnace. It may leave  
a residue or invisible coating that will burn  
or smell when you turn your floor furnace on.  
Use only a damp cloth.  
CAUTION: Label all wires prior to disconnection when  
servicing controls. Wiring errors can cause improper and  
dangerous operation.  
For proper operation, Floor Furnace must be kept clean. At  
regular intervals turn control valve to off, let cool, remove register  
and clean dust and foreign material from jacket with vacuum  
cleaner.  
Repair service must be performed by qualified  
persons. The floor furnace must be inspected  
before initial use. An annual cleaning of floor  
furnace and safety performance check should be  
made by a qualified service person. More  
frequent cleaning may be required when exposed  
to the excessive lint conditions due to carpeting  
and bedding material, etc. It is imperative that  
the control compartment, burners, and circulating  
air passageways of the floor furnace be kept clean.  
Any safety screen or guard removed for servicing  
the floor furnace must be replaced prior to  
operating heater.  
Have the Floor Furnace checked by a qualified service technician  
for venting system, pilot, and burner operation prior to its use  
each year.  
Follow a regular service and maintenance schedule for safe  
and efficient operation.  
Keep flammable materials away from floor furnace area.  
Be sure not to obstruct combustion and ventilation air.  
TO CLEAN BURNER  
1. Remove bottom pan from outer casing.  
2. Remove 2 screws from burner support bracket.  
3. Remove 2 screws from pilot bracket allowing burner to  
slide off of manifold and out of floor furnace.  
4. Examine the burner. If any distortion is noticed, replace  
burner.  
Examine the entire venting system as a routine part of  
the safety performance check on an annual basis.  
5. Clean burner ports by inserting a toothpick in ports to  
remove any debris that might have accumulated.  
6. Inspect burner for spider webs or dust buildup during the  
off-season. If necessary, wash out with garden hose.  
7. Re-install and adjust burner.  
WARNING  
This is a gas-fired floor furnace. Keep the  
area clear of gasoline and other flammable  
vapor and liquids. All combustible material  
must be kept clear of this area to avoid fire  
or explosion.  
SERVICE RECORD  
SERVICE RECORD  
SERVICE RECORD  
SERVICE RECORD  
Page 14  
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TROUBLE SHOOTING CHART - MAIN BURNER  
SYMPTOM  
POSSIBLE CAUSES  
CORRECTIVE ACTION  
Flame too large  
1. Defective operator section of gas valve.  
2. Burner orifice too large.  
1. Replace complete valve.  
2. Check with local gas company for  
proper orifice size and replace.  
3. If installed above 2,000 ft.  
Too much primary air.  
1. Too much primary air.  
2. Noisy pilot.  
3. Refer to Burner Orifice Section, Pg. 12.  
Adjust air shutter. See Page 12.  
1. Adjust air shutter. See Page 12.  
2. Reduce pilot gas with adjusting screw marked  
pilot on combination gas control valve. See  
Page 12.  
Flame pops back  
Noisy Flame  
3. Burr in orifice (if it whistles or  
resonates).  
3. Remove burr or replace orifice. (Do not  
enlarge orifices).  
4. Excessive gas input.  
1. Too little primary air.  
2. Clogged main burner ports.  
3. Clogged draft hood.  
4. Linted up air shutter.  
4. See “Flame Too Large” above.  
1. Adjust air shutter. See page 12.  
2. Clean main burner ports. (Do not enlarge ports).  
3. Clean draft hood.  
4. Check for dust or lint at air mixer opening and  
around the shutter.  
Yellow tip flame (some  
yellow tipping on L.P.  
gas is permissible)  
Floating flame  
Gas odor  
1. Blocked venting.  
1. Clean flue passage ways to remove blockage.  
2. Adjust air shutter to increase primary air supply.  
1. Clean chimney or vent - replace if necessary.  
2. Eliminate drafts.  
2. Insufficient primary air.  
1. Chimney or vent obstruction.  
2. Drafts around appliance.  
3. Gas leak.  
3. See Page 1.  
Delayed ignition  
1. Pilot flame too small.  
1. Check pilot orifice, close, increase pilot gas flow if  
necessary by adjusting at combination control valve.  
See Page 12.  
2. Burner ports clogged near pilot.  
3. Low gas pressure.  
2. Clean burner ports (Do not enlarge ports).  
3. Check gas supply pressure.  
4. Pilot decreases in size when main burners  
come on.  
5. Air shutter open too far.  
4. Supply piping is inadequately sized. Consult local  
gas utility or competent installer.  
5. Close air shutter to proper setting as outlined in  
these instructions (slight yellow tipping is  
allowable on L.P. gas).  
6. Drafts around appliance.  
7. Bad venting.  
6. Eliminate drafts.  
7. See Venting”.  
Failure to ignite  
1. Main gas off.  
2. Defective gas valve.  
1. Open all manual gas valves.  
2. Replace gas valve.  
Condensation of water vapor 1. Improper venting.  
1. See Venting.  
Burner won’t turn off  
Incorrect gas input  
Not enough heat  
1. Defective or sticking automatic valve.  
1. Clean or replace valve.  
2. To correct this situation contact the utility  
supplying the gas.  
2. Excessive gas pressure (The supply gas  
pressure must not exceed 1/2 psi or 14”  
water column).  
1. Gas input not checked.  
2. Clogged orifice.  
1. Recheck gas input.  
2. Check orifice for clogging. If clogged, clean out the  
hole carefully with a smooth wood toothpick. (Do  
not in any way enlarge or distort it.  
1. This is especially true when a dwelling or room is  
enlarged. Have the heat loss calculated and compare to  
the appliance output (70% of input). Your gas company  
or installer can supply you with this information. If  
appliance is undersized, replace with correct size unit.  
2. Setting of thermostat. See “Lighting and Shutting Down  
Instructions”.  
1. Appliance undersized  
2. Thermostat set too low.  
3. Incorrect supply pressure.  
1. Thermostat set too high.  
3. Check supply pressure as outlined above.  
1. Lower setting of temp. dial. See “Lighting and Shutting  
Down Instructions”.  
Too much heat  
2. Combination control valve sticks open.  
2. Replace combination control valve.  
TROUBLE SHOOTING CHART - AUTOMATIC PILOT & VALVE  
Burner won’t turn on  
1. Pilot flame too large or too small.  
1. Readjust pilot flame using adjustment screw marked  
“Pilot” on combination control valve. See Page 10.  
2. Clean pilot orifice with air or solvent, do not ream.  
3. Replace entire combination control valve.  
2. Dirt in pilot orifice.  
3. Defective automatic pilot section in  
combination control valve.  
4. Defective Thermocouple.  
4. Replace thermocouple.  
5. Replace valve.  
5. Defective combination control valve.  
Page 15  
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MODELSINCLUDED:  
90N30A NAT.  
GAS FLOOR FURNACELIST PRICES  
90N50A NAT.  
90N65A NAT.  
Prices and specifications subject to change  
witout notice. All prices  
90N75A NAT.  
are F.O.B. factory. Specify model number  
when ordering parts.  
3
42  
1
4
10  
2
11  
14  
13  
12  
18  
26  
17  
16  
15  
44  
22  
45  
41  
43  
36  
40  
28  
38  
39  
29  
39  
36  
37 38  
32  
33  
32  
41  
33  
27  
31  
31  
34  
40  
34  
BURNER ASSEMBLY FOR:  
90N30A 90N50A 90N65A  
BURNERASSEMBLYFOR:  
90N75A  
Mr. Contractor, we only sell parts through our wholesalers, but the prices listed are for  
your convenience. For prompt parts service, contact the wholesaler from which you  
purchased your Cozy heater. NOTE: Parts & schematic drawings on current models are  
shown at www.cozyheaters.com.  
MARCH 2005  
Page 16  
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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 that is attached to heater.  
MODEL NUMBER  
NAT.  
REF.  
NO.  
1
90N30A  
90N50A  
90N65A  
90N75A  
PART  
LIST  
PART  
LIST  
PART  
LIST  
PART  
LIST  
PRICE  
$370.40  
$7.20  
PART DESCRIPTION  
Heat Exchanger w/Gasket  
Gasket, Heat Exchanger  
Liner, Complete Assembly  
Grille, Floor  
NO.  
PRICE  
NO.  
PRICE  
NO.  
PRICE  
NO.  
23074  
74530  
23001  
23145  
23040  
24048  
74510  
24035  
24044  
74205  
91256  
24045  
23200  
23225  
74592  
74518  
74209  
74315  
74414  
49200  
N/A  
$206.20  
24099  
74530  
23980  
24175  
24002  
24048  
74510  
24035  
24044  
74205  
91256  
24045  
24075  
24077  
74592  
74518  
74209  
74315  
74414  
49210  
N/A  
$291.10  
24499  
74532  
24380  
24475  
24402  
24048  
74510  
24035  
24044  
74205  
91256  
24045  
24477  
24077  
74592  
74518  
74209  
74315  
74414  
49220  
N/A  
$331.90  
24699  
74535  
24580  
24675  
24602  
24048  
74510  
24642  
24044  
74205  
91256  
24045  
24676  
24077  
74592  
74518  
74209  
74315  
74414  
49330  
74403  
74404  
N/A  
N/A  
2
$4.20  
$167.60  
$142.30  
$159.90  
$14.10  
$2.10  
$3.70  
$1.20  
$1.20  
$4.50  
$1.90  
$74.40  
$3.70  
$20.00  
$1.30  
$1.20  
$164.30  
$2.00  
$22.70  
N/A  
$4.20  
$148.90  
$180.80  
$183.00  
$14.10  
$2.10  
$3.70  
$1.20  
$1.20  
$4.50  
$1.90  
$81.10  
$4.80  
$20.00  
$1.30  
$1.20  
$164.30  
$2.00  
$22.70  
N/A  
$5.90  
$161.00  
$230.50  
$210.60  
$14.10  
$2.10  
$202.90  
$270.20  
$227.10  
$14.10  
$2.10  
3
Casing, Complete Assembly  
Vision Cap, Complete Assy.  
Lighter Rod  
4
10  
11  
12  
13  
14  
16  
17  
18  
19  
22  
23  
24  
26  
37  
N/A  
27  
28  
29  
31  
32  
32  
33  
34  
36  
N/A  
38  
39  
39  
41  
42  
N/A  
43  
44  
45  
N/A  
Valve Rod  
$3.70  
$3.80  
Washer, Valve Rod  
$1.20  
$1.20  
Key, Furnace  
$1.20  
$1.20  
Instruction Plate, Lighting  
Valve Rod Indicator Plate  
Drafthood Assembly w/Gasket  
Drafthood Gasket w/Screws  
Thermostat, Millivolt  
Wire, Thermostat 20'  
Staples, Thermostat Wire  
Valve, VS821A1061 Nat. Gas M.V.  
Disappearing Bushing 1/4x3/8  
L.P. Conversion Kit  
$4.50  
$4.50  
$1.90  
$1.90  
$83.80  
$4.80  
$88.50  
$4.80  
$20.00  
$1.30  
$20.00  
$1.30  
$1.20  
$1.20  
$164.30  
$2.00  
$164.30  
$2.00  
$22.70  
N/A  
$22.70  
$23.80  
$21.80  
N/A  
Left Burner w/Pilot Bracket 75  
Right Burner 75  
N/A  
N/A  
N/A  
N/A  
N/A  
N/A  
Burner w/Pilot Brkt. & Air Adj.  
Pilot Generator, Q313A1014 M.V.  
Pilot Burner w/Orifice Q350A1271 N.  
Pilot Burner w/Orifice Q350A1589 LP  
Mounting Screws, Pilot (2)  
Pilot Tubing w/Fittings  
Burner Support, Front  
Burner Support, Rear  
Manifold  
74401  
70098  
74410  
74415  
50107  
74452  
24036  
24038  
74416  
74390  
74609  
24068  
*74306  
74320  
70050  
74351  
74350  
24039  
$22.30  
$32.30  
$9.80  
$9.80  
$1.20  
$7.00  
$5.10  
$2.60  
$6.70  
$3.40  
$3.40  
$9.80  
74401  
70098  
74410  
74415  
50107  
74452  
24036  
24038  
74416  
74406  
74606  
24068  
$22.30  
$32.30  
$9.80  
$9.80  
$1.20  
$7.00  
$5.10  
$2.60  
$6.70  
$3.40  
$3.40  
$9.80  
74402  
70098  
74410  
74415  
50107  
74452  
24036  
24430  
74416  
74407  
74607  
24068  
$24.40  
$32.30  
$9.80  
70098  
74410  
74415  
50107  
74452  
24036  
24627  
74412  
$32.30  
$9.80  
$9.80  
$9.80  
$1.20  
$1.20  
$7.00  
$7.00  
$5.10  
$5.10  
$2.90  
$3.40  
$6.70  
$24.00  
$3.40  
Burner Orifice, Natural Gas  
Burner Orifice, L.P. Gas  
Warning Flag  
$3.40 *74408  
$3.40 *74608  
$3.40  
$9.80  
24068  
$9.80  
Limit Control 60T11  
Wiring Harness  
$9.30 *74307  
$9.30 *74308  
$9.30 *74309  
$9.30  
$8.40  
$5.60  
$5.10  
$3.70  
$8.20  
74321  
70050  
74351  
74350  
24039  
$8.70  
$5.60  
$5.10  
$3.70  
$8.20  
74322  
70050  
74351  
74350  
24431  
$9.50  
$5.60  
$5.10  
$3.70  
$10.40  
74323  
70050  
74351  
74350  
24628  
$10.00  
$5.60  
Piezo Ignitor  
Ignitor Wire  
$5.10  
Electrode  
$3.70  
Bottom Burner Cover  
$11.70  
Prices and specifications subject  
to change without notice. All  
prices are F.O.B. factory.  
P/N 74521  
*2 Required  
Mr. Contractor, we only sell parts through our  
wholesalers, but the prices listed above are for your  
convenience. For prompt parts service, contact the  
wholesaler from which you purchased your Cozy  
heater. NOTE: Parts & schematic drawings on  
current models are shown at www.cozyheaters.com.  
MARCH 2005  
Page 17  
Download from Www.Somanuals.com. All Manuals Search And Download.  
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  
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.  
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, it may mean  
that this safety device is warning you that there is a  
problem with your system. Inspection and repairs or  
replacement must be made by a trained gas service  
technician.  
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.  
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.  
CRITICAL SAFETY POINTS TO REMEMBER . . .  
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 SMELL GAS, DON’T LIGHT IT  
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.  
IF YOU CAN’T LIGHT IT,  
DON’T FIGHT IT!  
THIS IS NOT AN ADVERTISEMENT  
Download from Www.Somanuals.com. All Manuals Search And Download.  
Download from Www.Somanuals.com. All Manuals Search And Download.  

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