INSTALLATION INSTRUCTIONS
AND
OWNER’S MANUAL
VENTED
ROOM HEATER
MODELS
RH-25-6
RH-35-6
WARNING: If the information in these instructions are 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 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.
Installer: Leave this manual with the appliance.
Consumer: Retain this manual for future reference.
WARNING: If not installed, operated and maintained in accordance with the manufacturer’s instructions, this product could expose you to substances in fuel or from fuel combustion which can cause death or serious illness.
Page 1
TABLE OF CONTENTS |
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SECTION |
PAGE |
Important Safety Information....................................................................................................... |
3 |
Safety Information for Users of LP Gas....................................................................................... |
4 |
Introduction.................................................................................................................................. |
5 |
Specifications............................................................................................................................... |
5 |
Gas Supply.................................................................................................................................. |
6 |
Clearances................................................................................................................................... |
7 |
Venting......................................................................................................................................... |
7 |
Vent Safety Shutoff System ........................................................................................................ |
8 |
Reversible Vertical or Horizontal Diverter.................................................................................... |
8 |
Thermostat Operation.................................................................................................................. |
8 |
Lighting Instructions .................................................................................................................... |
9 |
Pilot Flame Characteristics ....................................................................................................... |
10 |
Main Burner Flame Characteristics .......................................................................................... |
10 |
Maintenance.............................................................................................................................. |
11 |
Troubleshooting......................................................................................................................... |
11 |
Parts List ................................................................................................................................. |
12 |
Parts View .............................................................................................................................. |
13 |
Optional Blower Installation Instructions .............................................................................. |
14-15 |
Master Parts Distributor List ..................................................................................................... |
16 |
How To Order Repair Parts........................................................................................................ |
16 |
Appliance Service History..................................................................................................... |
17-19 |
Page 2 |
12821-10-1011 |
IMPORTANT SAFETY INFORMATION
THIS IS A HEATING APPLIANCE
DO NOT OPERATE THIS APPLIANCE WITHOUT FRONT PANEL INSTALLED.
• Due to high temperatures, the room heater should |
control compartments, burners and circulating air |
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be located out of traffic and away from furniture |
passageways of the room heater be kept clean. |
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and draperies. |
• DO NOT put anything around the heater that will |
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• Childrenandadultsshouldbealertedtothehazards |
obstructtheflowofcombustionandventilationair. |
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of high surface temperature and should stay away |
See clearances. |
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to avoid burns or clothing ignition. |
• DO keep the appliance area clear and free from |
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• Youngchildrenshouldbecarefullysupervisedwhen |
combustiblematerial,gasolineandotherflammable |
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they are in the same room as the room heater. |
vapors and liquids. |
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• Clothingorotherflammablematerialshouldnotbe |
• DOexamine venting system periodically. Clean and |
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placed on or near the room heater. |
replace damaged parts. Examinations should be |
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• Due to high surface temperatures, keep children, |
made at the start of the heating season and also in |
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mid heating season under average conditions. |
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clothing and furniture away. |
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• DOexamine burners periodically. Clean and replace |
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• Keep burner and control compartment clean. |
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damaged parts. |
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• Installation and repair should be done by a QUALI- |
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• DO NOT use this heater if any part has been under |
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FIED SERVICE PERSON. The room heater should |
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water. Immediately call a qualified service techni- |
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be inspected before use and at least annually by a |
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cian to inspect the heater and to replace any part |
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qualified service person. More frequent cleaning |
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of the control system and any gas control which |
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may be required due to excessive lint from carpet- |
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has been under water. |
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ing, bedding material, etc. It is imperative that |
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Attention: During operation of vented room heater the gasket for observation hole cover, observation hole cover and cover plate for observation hole cover must be attached to combustion chamber and secured with two (2) wing nuts.
12821-10-1011 |
Page 3 |
SAFETY INFORMATION FOR USERS OF LP-GAS
Propane (LP-Gas) is a flammable gas which can cause fires and explosions. In its natural state, propane is odorless and colorless.Youmaynotknowallthefollowingsafetyprecautions which can protect both you and your family from an accident. Read them carefully now, then review them point
by point with the members of your household. Someday when there may not be a minute to lose, everyone's safety will depend on knowing exactly what to do. If, after reading the following information, you feel you still need more information, please contact your gas supplier.
LP-GAS WARNING ODOR
If a gas leak happens, you should be able to smell the gas because of the odorant put in the LP-Gas.
That's your signal to go into immediate action!
•Do not operate electric switches, light matches, use your phone. Do not do anything that could ignite the gas.
•Get everyone out of the building, vehicle, trailer, or area. Do that IMMEDIATELY.
•Close all gas tank or cylinder supply valves.
•LP-Gas is heavier than air and may settle in low areas such as basements. When you have reason to suspect a gas leak, keep out of basements and other low areas. Stay out until firefighters declare them to be safe.
•Useyourneighbor'sphoneandcallatrainedLP-Gasservice person and the fire department. Even though you may not continue to smell gas, do not turn on the gas again. Do not re-enter the building, vehicle, trailer, or area.
•Finally, lettheservicemanandfirefighterscheckforescaped gas. Have them air out the area before you return. Properly trained LP-Gas service people should repair the leak, then check and relight the gas appliance for you.
NO ODOR DETECTED - ODOR FADE
Some people cannot smell well. Some people cannot smell theodorofthechemicalputintothegas.Youmustfindoutif you can smell the odorant in propane. Smoking can decrease your ability to smell. Being around an odor for a time can affect your sensitivity or ability to detect that odor. Sometimes other odors in the area mask the gas odor. People may not smell the gas odor or their minds are on something else. Thinking about smelling a gas odor can make it easier to smell.
The odorant in LP-gas is colorless, and it can fade under some circumstances. For example, if there is an underground leak, the movement of the gas through soil can filter the odorant.
Odorants in LP-Gas also are subject to oxidation. This fading can occur if there is rust inside the storage tank or in iron gas
pipes.
The odorant in escaped gas can adsorb or absorb onto or into walls, masonry and other materials and fabrics in a room. That will take some of the odorant out of the gas, reducing its odor intensity.
LP-Gas may stratify in a closed area, and the odor intensity could vary at different levels. Since it is heavier than air, there may be more odor at lower levels. Always be sensitive to the slightest gas odor. If you detect any odor, treat it as a serious leak. Immediately go into action as instructed earlier.
SOME POINTS TO REMEMBER
•Learn to recognize the odor of LP-gas. Your local LP-Gas Dealer can give you a "Scratch and Sniff" pamphlet. Use it to find out what the propane odor smells like. If you suspect that your LP-Gas has a weak or abnormal odor, call your LP-Gas Dealer.
•Ifyouarenotqualified,donotlightpilotlights,performservice, or make adjustments to appliances on the LP-Gas system. If you are qualified, consciously think about the odor of LP-Gas prior to and while lighting pilot lights or performing service or making adjustments.
•Sometimes a basement or a closed-up house has a musty smell that can cover up the LP-Gas odor. Do not try to light pilot lights, perform service, or make adjustments in an area where the conditions are such that you may not detect the odor if there has been a leak of LP-Gas.
•Odor fade, due to oxidation by rust or adsorption on walls of new cylinders and tanks, is possible.Therefore, people should be particularly alert and careful when new tanks or cylinders are placed in service. Odor fade can occur in new tanks, or reinstalled old tanks, if they are filled and allowed to set too long before refilling. Cylinders and tanks which have been out of service for a time may develop internal rust which will
cause odor fade. If such conditions are suspected to exist, a periodic sniff test of the gas is advisable. If you have any question about the gas odor, call your LP-gas dealer. A periodic sniff test of the LP-gas is a good safety measure under any condition.
•If, at any time, you do not smell the LP-Gas odorant and you think you should, assume you have a leak. Then take the same immediate action recommended above for the occasion when you do detect the odorized LP-Gas.
•If you experience a complete "gas out," (the container is under no vapor pressure), turn the tank valve off immediately. If the container valve is left on, the container may draw in some air through openings such as pilot light orifices. If this occurs, some new internal rusting could occur. If the valve is left open, then treat the container as a new tank. Always be sure your container is under vapor pressure by turning it off at the container before it goes completely empty or having it refilled before it is completely empty.
Page 4 |
12821-10-1011 |
INTRODUCTION
Introduction
Always consult your local Building Department regarding regulations, codes or ordinances which apply to the installation of a vented room heater.
Instructions to Installer
1.Installer must leave instruction manual with owner after installation.
2.Installer must have owner fill out and mail warranty card supplied with vented room heater.
be installed on a metal or wood panel extending the full width and depth of the appliance.
The base referred to above does not mean the fire-proof base as used on wood stoves. The protection is primarily for rugs that may be extremely thick and light-color tile that can discolor.
Floor pad is available from Empire Comfort Systems, Inc., Part Number DVP-1.
Qualified Installing Agency
3.Installer should show owner how to start and operate vented Installation and replacement of gas piping, gas utilization equip-
room heater and thermostat.
Warning:
Any change to this vented room heater or its controls can be dangerous. Any safety screen or guard removed for servicing a vented room heater must be replaced prior to operating the vented room heater.
General Information
This series is design certified in accordance withAmerican National
Standard/CSA Standard Z21.86 and CSA 2.32 by the Canadian Standards Association, as a Vented Room Heater and must be installed according to these instructions.
Any alteration of the original design, installed other than as shown in these instructions or use with a type of gas not shown on the rating plate is the responsibility of the person and company making the change.
Important
All correspondence should refer to complete Model Number, Serial Number and type of gas.
Notice: During initial firing of this unit, its paint will bake out and smoke will occur. To prevent triggering of smoke alarms, ventilate the room in which the unit is installed.
Installation on Rugs and Tile
If this appliance is to be installed directly on carpeting, tile, or other combustible material, other than wood flooring, the appliance shall
ment or accessories and repair and servicing of equipment shall be performed only by a qualified agency. The term “qualified agency” means any individual, firm, corporation, or company which whether in person or through a representative is engaged in and is responsible for (a) the installation or replacement of gas piping or (b) the connection, installation, repair or servicing of equipment, who is experienced in such work, familiar with all precautions required and has complied with all the requirements of the authority having jurisdiction.
State of Massachusetts: The installation must by made by a licensed plumber or gas fitter in the Commonwealth of
Massachusetts.
The installation must conform to local codes or, in the absence of local codes, with the National Fuel Gas Code, ANSI Z223.1 */ Canadian Installation Code, CAN/CGA B149.
*Available from the American National Standards Institute, Inc., 11 West 42nd St., New York, NY 10036.
High Altitudes
For altitudes/elevations above 2,000 feet (610m), input ratings should be reduced at the rate of 4 percent for each 1,000 feet (305m) above sea level. Canadian High Altitudes for locations having an elevation above mean sea level between 2,000 feet (610m) and 4,500 feet (1370m), the manifold pressure is to be decreased from 4.0" w.c. (.996kPa) to 3.2" w.c. (.797kPa) for Natural Gas and from 10.0" w.c. (2.49kPa) to 8.0" w.c. (1.99kPa) for Propane Gas.
SPECIFICATIONS
Model |
RH-25 |
RH-35 |
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Input BTU.HR (KW/H) |
25,000 (7.3) |
35,000 (10.3) |
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Height |
26" (660mm) |
26" (660mm) |
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Width |
37" (940mm) |
37" (940mm) |
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Depth including diverter |
18 |
3/8" (467mm) |
18 |
3/8" (467mm) |
Gas Inlet Pipe |
1/2" (13mm) |
1/2" (13mm) |
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Size of flue collar |
4" (102mm) |
4" (102mm) |
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Floor to top of collar on vertidcal position of Draft Diverter |
22 |
15/16" (583mm) |
22 |
15/16" (583mm) |
Floor to center of collar on horizontal position of Draft |
18 |
3/16" (462mm) |
18 |
3/16" (462mm) |
Diverter |
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Accessories |
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Blower Package |
DRB-1 |
DRB-1 |
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Floor Pad |
DVP-1 |
DVP-1 |
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12821-10-1011 |
Page 5 |
GAS SUPPLY
Recommended Gas Pipe Diameter
Pipe Length |
Schedule 40 Pipe |
Tubing, Type L |
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|
Inside Diameter |
Outside Diameter |
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|
Nat. |
L.P. |
Nat. |
L.P. |
0-10 feet |
1/2” |
3/8” |
1/2” |
3/8” |
0-3 meters |
12.7mm |
9.5mm |
12.7mm |
9.5mm |
10-40 feet |
1/2” |
1/2” |
5/8” |
1/2” |
4-12 meters |
12.7mm |
12.7mm |
15.9mm |
12.7mm |
40-100 feet |
1/2” |
1/2” |
3/4” |
1/2” |
13-30 meters |
12.7mm |
12.7mm |
19mm |
12.7mm |
100-150 feet |
3/4” |
1/2” |
7/8” |
3/4” |
31-46 meters |
19mm |
12.7mm |
22.2mm |
19mm |
Note: Never use plastic pipe. Check to confirm whether your local codes allow copper tubing or galvanized.
Note: Since some municipalities have additional local codes, it is always best to consult your local authority and installation code.
The use of the following gas connectors is recommended:
—ANS Z21.24Appliance Connectors of Corrugated Metal Tubing and Fittings
—ANS Z21.45Assembled FlexibleAppliance Connectors of Other Than All-Metal Construction
The above connectors may be used if acceptable by the authority havingjurisdiction.ThestateofMassachusettsrequiresthataflexible appliance connector cannot exceed three feet in length.
NPT NIPPLE
Figure 1
Consult the current National Fuel Gas Code, ANSI Z223.1 CAN/ CGA-B149 (.1 or .2) installation code.
Installing a New Main Gas Cock
Each appliance should have its own manual gas cock.
A manual main gas cock should be located in the vicinity of the unit.
Where none exists, or where its size or location is not adequate, contact your local authorized installer for installation or relocation.
Compounds used on threaded joints of gas piping shall be resistant Page 6
to the action of liquefied petroleum gases. The gas lines must be checked for leaks by the installer. This should be done with a soap solution watching for bubbles on all exposed connections, and if unexposed, a pressure test should be made.
Neveruseanexposedflametocheckforleaks.Appliancemust be disconnected from piping at inlet of control valve and pipe capped or plugged for pressure test. Never pressure test with appliance connected; control valve will sustain damage!
A gas valve and ground joint union should be installed in the gas line upstream of the gas control to aid in servicing. It is required by the National Fuel Gas Code that a drip line be installed near the gas inlet. This should consist of a vertical length of pipe tee connected into the gas line that is capped on the bottom in which condensation and foreign particles may collect.
Figure 2
Method of Installing a Tee Fitting Sediment Trap Pressure Testing of the Gas Supply System
1.To check the inlet pressure to the gas valve, a 1/8" (3mm) N.P.T. plugged tapping, accessible for test gauge connection, must be placed immediately upstream of the gas supply connection to the appliance.
2.Theapplianceanditsindividualshutoffvalvemustbedisconnected from the gas supply piping system during any pressure testing of that system at test pressures in excess of 1/2 psig (3.5 kPa).
3.The appliance must be isolated from the gas supply piping system by closing its individual manual shutoff valve during any pressure testing of the gas supply piping system at test pressures equal to or less than 1/2 psig (3.5 kPa).
Attention! If one of the above procedures results in pressures in excess of 1/2 psig (14" w.c.) (3.5 kPa) on the appliance gas valve, it will result in a hazardous condition.
Checking Manifold Pressure
Both Propane and Natural gas valves have a built-in pressure regulator in the gas valve. Natural gas models will have a manifold pressure of approximately 4.0" w.c. (.996kPa) at the valve outlet with the inlet pressure to the valve from a minimum of 5.0" w.c. (1.245kPa) for the purpose of input adjustment to a maximum of 10.5" w.c. (2.61kPa). Propane gas models will have a manifold pressure approximately 10.0" w.c. (2.49kPa) at the valve outlet with the inlet pressure to the valve from a minimum of 11.0" w.c. (2.739kPa) for the purpose of input adjustment to a maximum of 13.0" w.c. (3.237kPa).
A 1/8" (3mm) N.P.T. plugged tapping, accessible for test gauge connection, is located on the outlet side of the gas control.
12821-10-1011
CLEARANCES
Clearances: When facing the front of the room heater the minimum clearances to combustible construction (material) are the following:
Right side 6 inches (152mm). Left side 6 inches (152mm). Recommend 18 inches (457mm) on left side for servicing.
Do not install in alcove or closet. No horizontal projection above
heater permitted within 48 inches (122cm).
Ceiling 48 inches (122cm). Rear of draft hood 2 inches (51mm).
Open in front to provide service, access, and clearance to combustibles.
VENTING
Venting
1.Flue pipe must be as large as the flue collar on the draft diverter.
2.Maintain an upward slope of at least 1/4 inch (6mm) per foot (.3m) of horizontal run.
3.Run flue pipe as directly as possible with a minimum of elbows.
4.Flue pipe should extend through the wall of a chimney to be flush with inner wall.
5.Flue pipe must be adequately supported by metal strips.
6.Single wall vent pipe may be attached directly to the draft hood of the room heater when a clearance of 2 1/2 inches (64mm) is maintained between the single wall vent pipe and the combustible wall of the room in which the room heater is located. Use double wall vent pipe for clearances less than 2 1/2 inches (64mm) to combustibles.
7.For flue pipe running through walls and roof, use B-1 [1 inch
(25mm) clearance to combustibles) vent pipe.
8.Chimneys should extend at least 2 feet (.6m) above the roof and above any object or nearby building within 10 feet (3m).
9.Open tees should not be used in the flue pipe.
10.Appliance must not be connected to a chimney flue that is servicing a separate solid-fuel burning appliance.
For proper venting, do not attach a 90° elbow directly to draft diverter. If possible, attach 2 feet (.6m) of straight vent pipe before an elbow is used. Use 45° elbows if possible.
Uninsulated single-wall metal pipe shall not be used outdoors in cold climates for venting gas utilization equipment.
Ventilation and Combustion Air
Room heaters shall be installed in a location in which the facilities for ventilation permit satisfactory combustion of gas and proper venting under normal conditions. In buildings of conventional frame, brick or stone construction without tight storm windows and doors, infiltration is normally adequate to provide for combustion and draft hood dilution.
Whereappliancesareinstalledinaconfinedspacewithinabuilding, the building being of unusually tight construction, air for combustion and ventilation must be obtained directly from outdoors or from such spaces that freely communicate with the outdoors. Under these conditions, the confined space shall be provided with two permanent openings, one near the top of the enclosure and one near the bottom; each opening shall have a free area of not less than one square inch (6.5cm2)per 1,000 BTU’s (.3KW/H) of total input. The draft hood must be in the same atmospheric pressure zone as the combustion air inlet to the appliance.
Liner and Insulated Liner
When you install a vented room heater into a masonry chimney you must follow these steps.
12821-10-1011
1.The chimney must be lined and sized properly. Most masonry chimneys are over sized and absorb too much heat to be considered a proper vent. If you have any doubts line the chimney with the right size liner. If it’s unlined you must line it.
2.Use an insulated liner when the chimney is on the outside, three sides exposed to the weather, and there is no clay liner in the chimney. The insulation will help keep the flue gases warmer.
Insulated Vent Enclosure
Vented room heaters installed with the vent going directly to the outside and above the eaves can cause poor venting. The cold pipe will have a delay in proper venting and cause the room heater to shut “off” by the vent safety switch. To prevent delayed venting as well as condensation of flue products an insulated enclosure is recommended.
Use type B 4" (102mm) diameter vent pipe and maintain at least a one inch (25mm) clearance to combustibles.
Use metal thimble to protect vent pipe as it passes through combustibles.
HEIGHT ABOVE ANY ROOF SURFACE |
MORE THAN |
WITHIN 10' (3m) HORIZONTALLY |
10' (3m) |
10' (3m)
2' (.6m)
3' (.9m)
Figure 3
Page 7
VENT SAFETY SHUTOFF SYSTEM
This heater must be properly connected to a venting system. This heater is equipped with a vent safety shutoff system.
Warning:
Operation of this heater, when not connected to a properly installed and maintained venting system or tampering with the vent safety shutoff system, can result in carbon monoxide (CO) poisoning and possible death.
This appliance needs fresh air for safe operation and must be installed so there are provisions for adequate combustion and ventilation air.
This room heater is equipped with a vent safety switch. The vent
safety switch will cause gas flow to the pilot to “shut off” due to improper venting or a blocked flue.
If the vent safety switch continues to “shut off” the gas flow to the pilot a qualified service person must be contacted to inspect for improper venting, blockage in the vent pipe or the vent safety switch for being defective.
REVERSIBLE VERTICAL OR HORIZONTAL DRAFT DIVERTER
This room heater has a reversible draft diverter. The draft diverter is installed in the vertical position at the factory. Please use the following steps to change the draft diverter from the vertical position to the horizontal position.
1.Remove L280 vent safety switch from the draft diverter.
2.Inside your yellow instruction envelope will be a 1 1/2" x 2 1/4" (38mm x 51mm) vent safety switch hole cover plate and two
(2) 1/2" screws for attachment of vent safety switch hole cover plate to the draft diverter. Attach vent safety switch hole cover plate over hole on the draft diverter from which the L280 vent safety switch was removed.
3.Remove two (2) screws at bottom of draft diverter and lift upward to remove draft diverter from the draft diverter plate. Rotate draft diverter into the horizontal position and slide back into the draft diverter plate. Attach two (2) screws into bottom of the draft diverter.
4.Remove vent safety switch hole knockout and two (2) knockouts for screws on opposite side of draft diverter.
5.Attach L280 vent safety switch to the draft diverter.
6. Repositioning of the draft diverter is completed.
DRAFT DIVERTER CAN BE EITHER A VERTICAL VENT OR
HORIZONTAL VENT
Figure 4
THERMOSTAT OPERATION
Thermostat Operation
To turn on burner, rotate dial knob toward setting number 7. To shut down burner, rotate dial knob toward number 1.
The dial numbers 1 through 7 correspond to 50° (10°C) through 90°F (32°C). This is the temperature at the bulb thermostat not the room temperature. The owner is advised to determine the particular heat setting that is desired for comfort, as heating requirements are different for every owner.
Attention: If no heat is desired, turn the gas control knob to the PILOT position.
Page 8 |
12821-10-1011 |
LIGHTING INSTRUCTIONS
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.
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 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 de-
partment.
C.Useonlyyourhandtopushinorturnthegascontrolknob. Neverusetools.Iftheknobwillnotpushinorturnbyhand, don'ttrytorepairit;callaqualifiedservicetechnician.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.
LIGHTING INSTRUCTIONS
1.STOP! Read the safety information to the left of this label.
2.Set thermostat to lowest setting.
3.Turn off all electric power to the appliance. (If applicable)
4.Remove access panel (front panel).
5.Push in gas control knob slightly and turn clockwise
to “OFF”. Do not force.
6.Wait ten (10) minutes to clear out any gas. Then smell for gas, including near floor. If you smell gas, STOP! Follow “B” in the safety information to the left of this label. If you do not smell gas, go to the next step.
7.Remove the pilot access cover located on the combustion chamber.
8.Find pilot - the pilot is attached to front of burner.
9.Turn gas control knob counterclockwise 
to “IGN”.
10.Depress and turn gas control knob counterclockwise
to “PILOT”. A spark is produced when gas control knob is turned between “IGN” and “PILOT”. Repeatedly depress and turn gas control knob between “IGN” and “PILOT” until pilot is ignited. Continue to hold the control knob in for about one
(1)minute after pilot is lit. Release knob and it will pop back up. If it goes out, repeat steps 5 through 10.
•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 or gas supplier.
11.Attention! Gas control has INTERLOCK latching device. When the pilot is initially lit and the safety magnet is energized (pilot stays on) the INTERLOCK latching device becomes operative.
If the gas control is turned to the “OFF” position or gas flow to the appliance is shut off, the pilot cannot be relighted until the safety magnet is de-energized (approximately 60 seconds).
There will be an audible “click” when the safety magnet in the gas control is de-energized. Pilot can now be relit. Repeat steps 5 through 10.
12.Turn gas control knob counterclockwise 
to “ON”.
13.Turn on all electric power to the appliance. (If applicable)
14.Replace pilot access cover and access panel (front panel).
15.Set thermostat to desired setting.
TO TURN OFF GAS TO APPLIANCE 
1. |
Set thermostat to lowest setting. |
3. Push in gas control knob slightly and turn clockwise |
2. |
Turn off all electric power to the appliance. (If applicable) |
t o “OFF". Do not force. |
|
If service is to be performed. |
|
12821-10-1011 |
Page 9 |
PILOT FLAME CHARACTERISTICS
The correct flame will be almost horizontal, blue and will extend past the thermocouple 1/4" (6mm). The flame will surround the thermocouple just below the tip.
On Propane (LP-gas) slight yellow might occur where the pilot flame and the burner flame meet.
Naturalgaspilotsrequireadjustingwhentheinletpressureisabove
5" w.c. (1.25kPa) Remove pilot adjustment cover. Turn adjustment screw clockwise to reduce flame.
Propane (LP-gas) will not require adjusting.
After use, cleaning of the pilot burner may be required for the proper flame. The pilot orifice can be cleaned with high pressure air or by placing under running water. Pilot orifice must be dry before replacement. Use a pipe cleaner to clean inside the pilot after the pilot orifice has been removed.
To Remove Pilot Orifice
1.Disconnect the pilot supply line at the pilot burner.
2.Remove pilot orifice from pilot burner.It may be necessary to tap on pilot burner in order to remove the pilot orifice.
Figure 5
MAIN BURNER FLAME CHARACTERISTICS
There will be a short blue inner flame with a larger, lighter blue secondary flame. The burner flame may have yellow tips when hot. Dust in the combustion air will produce an orange or red flame. Do not mistake the orange or red flame for an improper yellow flame.
Attention: On Propane gas, if a whistling noise (resonation) occurs close the air shutter on the main burner in order to reduce the amount of primary air. The reduction in primary air will soften the main burner flame and will eliminate the whistling noise (resonation).
On Propane or Natural gas if a yellow flame occurs open the air shutter on the main burner in order to increase the amount of primary air. The increase in primary air will sharpen the main burner and will eliminate the yellow flame.
Afteruse,cleaningofthemainburnermayberequiredfortheproper flame. The main burner may be cleaned by forcing water into the ports and the throat of the burner. The burner should be blown dry or heated to remove all water before replacement.
Figure 6
On Propane Gas, if a whistling noise (resonation) occurs
a.Close the air shutter on the main burner in order to reduce the amount of primary air.
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12821-10-1011 |
MAINTENANCE
To Remove Main Burner |
Cleaning Combustion Chamber |
1.Disconnect the thermocouple and pilot supply line at the pilot A qualified serviceman should remove the chamber and apply air
burner.
2.Unscrew the nut on the orifice fitting union. Orifice fitting is threaded into the main burner.
3.Remove screw on each side of the main burner and lift out.
To Remove Main Burner Orifice
1.Unscrew the nut on the orifice fitting union. Orifice fitting is threaded into the main burner.
2.Unthread the orifice fitting from the main burner.
3.Main burner orifice is located at the end of the orifice fitting.
4.Remove main burner orifice from orifice fitting with a 1/2"
(13mm) wrench.
pressure to the inside in order to clear all passageways.
TROUBLESHOOTING
1. Impossible to light pilot |
7. Yellow pilot flame |
||
a. |
If using piezo ignitor, check electrode location. |
a. |
Small yellow tip not objectionable. |
b. |
Remove nut at orifice and check for gas. |
b. |
Remove pilot orifice. Check and clean. |
c.If gas available, check for blocked orifice or pilot. 8. Pilot and main burner goes out after burning a few min-
2.Pilot outage
a.Proper size of pilot flame.
b.Defective or weak thermocouple.
3.Pilot flames but goes out when knob is released
a.Pilot flame not covering the thermocouple properly.
b.Defective thermocouple.
c.Defective magnet in the safety section of valve.
4.Poor thermostat control
a.Thermostat needs calibrating.
b.Defective thermostat section.
5.Noisy blower
a.Tighten blower screws.
b.Check blower wheel in the open for balance.
6.Yellow main burner flame
a.Remove main burner to check for obstructions in throat, ports and orifices.
b.Install new main burner orifice and pilot orifice.
c.Check gas valve for leaking.
d.Open the air shutter on the main burner in order to increase the amount of primary air.
utes
a.Improper venting of flue products. Relight and check for improper venting.
b.If vented properly, check vent safety switch, replace if defective.
9.Burner flashesback or “pops” and burns at main burner orifice
a.Examine main burner for defects.
10.Inoperative blower
a.Check fan control by shorting across terminals.
b.Check for blower wheel bind by removing wheel and operating motor.
c.Check for frozen bearings due to lack of oil.
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