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MODEL F80A

MAINTENANCE

AIR FILTER

LUBRICATION

Minimal lubrication is required for your furnace. The
induced blower assembly motors have sealed bearings. The
bearings contain permanent special purpose lubricants.
Attempting to force common oil into the induced blower
motor bearings will deteriorate the original lubricant and
shorten bearing life.

WARNING

DISCONNECT THE ELECTRICAL POWER TO THE FURNACE
BEFORE ATTEMPTING ANY MAINTENANCE. FAILURE TO
DO SO MAY CAUSE ELECTRICAL SHOCK RESULTING IN
SEVERE PERSONAL INJURY OR DEATH.

Consult your installation contractor or service technician if
you have any questions on filters.

REMOVING FILTER
1.  Disconnect electrical power to the furnace.
2.  Pull the filter out the front.
3.  Replace with a fresh filter and reconnect power to the

furnace. The filter will have an arrow indicating proper
airflow direction.

DO NOT OPERATE YOUR FURNACE (OR AIR CONDITIONER)
WITHOUT AN AIR FILTER.

Figure 4: Air Filter

ROUTINE EXAMINATION

It is good practice to give a quick inspection of your furnace
each time you inspect or clean the air filter. Things to check:

All areas around the vent connector and chimney should
be clear and free of obstructions.

Check the venting to ensure that it is still fastened to the
furnace. It should not sag and should have a slope
upwards to the chimney. It should be physically sound,
without holes or excessive corrosion.

The return air duct connection must be sound and
securely fastened to the furnace casing. In most cases,
the filter rack provides the means to connect the return
air to the furnace. There should be no return air inlets in
the vicinity of the furnace.

All ductwork should be secured to the furnace, and all
ductwork should be solidly supported throughout the
heating system.

The furnace should be well supported on a level floor or
by the means used to suspend the furnace in a horizontal
configuration. Base support should be physically sound
without sagging, cracks, gaps, etc. around the base so as
to provide a seal between the support and the base.

Check the furnace for obvious signs of deterioration.

The gas burner should be observed from time to time
during the heating season to ensure that the flames are
clean and blue. A bit of orange color in the flame is not
likely to be a problem and is probably dust particles
burning. If you observe lazy yellow flames, call your
heating or service contractor immediately. The yellow
flames inevitably lead to sootups.

FURNACE APPEARANCE

The furnace exterior finish is a durable automotive-like
coating. It may be washed with mild soap if necessary.
Galvanized metal surfaces require no maintenance.

CLEANING

It is advisable to keep dust buildup on warm surfaces to a
minimum, since dust, in some cases, can be combustible.

Dust buildup in the circulating fan can impair blower
performance; therefore, reduce efficiency. Because the
blower wheel is fastened directly to the blower motor, we
recommend that major cleaning be left to your service
contractor.

CAUTION

DO NOT PERMIT WATER OR CLEANING SOLUTIONS TO
ENTER THE ELECTRIC MOTOR.

WARNING 

NEVER ATTEMPT TO CLEAN THE BURNER AREA WHILE THE
BURNERS ARE OPERATING. DOING SO MAY RESULT IN
EXPLOSION OR FIRE RESULTING IN SEVERE PERSONAL
INJURY OR DEATH.

The burner area should be inspected and cleaned
periodically. Be careful when cleaning around the burner
area. The hot surface igniter is fragile and will break easily.
Do not touch the hot surface igniter or flame rod.

Содержание F80A

Страница 1: ...DIMENSIONS 5 DUCTWORK 6 DETERMING COMBUSTION AIR 7 FURNACE VENTING 8 GAS SUPPLY 12 CONVERSIONS 13 HIGH ALTITUDE AIRFLOW SPECIFICATION TABLES 14 ELECTRICAL SPECIFICATIONS 15 START UP PROCEDURES SEQUEN...

Страница 2: ...ated by the furnace to areas outside the space containing the furnace the return air shall also be handled by duct s sealed to the furnace casing and terminating outside the space containing the furna...

Страница 3: ...sociation 1515 Wilson Boulevard Arlington VA 22209 703 841 8400 National Fire Protection Association 1 Batterymarch Park Quincy MA 02269 9101 617 770 3000 Canadian Gas Association Suite 1 243 Consumer...

Страница 4: ...em An undersized return air system will prevent sufficient quantities of air from reaching the supply air system properly sized or otherwise and will consequently reduce the service life of the furnac...

Страница 5: ...pports so as not to interfere with accessing the burner and blower compartments The opening in the floor must provide adequate clearances to the combustible material According to the Clearances to Com...

Страница 6: ...E AREA AROUND THE FURNACE MUST BE KEPT CLEAR AND FREE OF ALL COMBUSTIBLE MATERIALS INCLUDING GASOLINE AND OTHER FLAMMABLE VAPORS AND LIQUIDS PLACEMENT OF COMBUSTIBLE MATERIALS ON AGAINST OR AROUND THE...

Страница 7: ...UCING DEVICE SUCH AS A FIREPLACE INSERT STOVE ETC DOING SO MAY RESULT IN FIRE CARBON MONOXIDE POISONING EXPLOSION PERSONAL INJURY LOSS OF LIFE OR PROPERTY DAMAGE CAUTION DO NOT USE THE REAR PANEL AS A...

Страница 8: ...gs one within 12 inches of the ceiling and the other within 12 inches of the floor The air openings must be sized based on whether the combustion and ventilation air is being taken from indoors or out...

Страница 9: ...NFPA 54 National Fuel Gas Code in the United States or B149 Natural Gas and Propane Installation Code in Canada and within the requirements of the codes of the local authority having jurisdiction Refe...

Страница 10: ...h joint to prevent sagging Horizontal segments must slope upward from the furnace to vent or chimney with a minimum 1 4 inch per foot When the vent tables from ANSI 223 1 NFPA 54 or B149 permit more t...

Страница 11: ...connector segments together with a minimum of three sheet metal screws per joint Secure the vent connector to the furnace collar with a minimum of three sheet metal screws Type B vent connectors do n...

Страница 12: ...EDICATED VENTING Figure 7 below shows a good method to permit dedicated venting making use of B Vent within a masonry chimney When using this method provide support for the B Vent IMPORTANT maintain a...

Страница 13: ...there is no blockage restriction leakage corrosion collapsed materials such as fallen bricks or any other deficiency that could lead to an unsafe condition 3 Insofar as practical duplicate winter oper...

Страница 14: ...ntity of dish detergent with water and daubing it onto the gas piping and connections PURGING GAS LINES NATURAL TO L P GAS This series furnace is manufactured as a natural gas sea level appliance It m...

Страница 15: ...5 mm 1 20 mm 135 2000 4500 121 500 97 200 1 90 mm 1 15 mm 0 2000 135 000 108 000 1 95 mm 1 20 mm 2000 3000 118 800 95 040 1 83 mm 1 13 mm 3000 4000 113 400 90 720 1 79 mm 1 10 mm 4000 5000 108 000 86...

Страница 16: ...ce requires a dedicated overcurrent device either a circuit breaker or a Type D time delay fuse It is permissible to connect furnace accessories such as humidifier transformers condensate pumps and el...

Страница 17: ...to the right hand side The junction box contains a BLACK wire to be connected with L1 hot a WHITE wire to be connected with L2 the Neutral and a GREEN wire to be connected to the ground Use good qual...

Страница 18: ...gin again at Step 4 above If the flame sensing signal is lost more than 5 times during a furnace cycle the gas valve will close and the ignition sequence goes into a 5 second postpurge the induced blo...

Страница 19: ...and the air filter or filters are in place determine if the airflow is correct 1 Insert a duct thermometer in the supply air duct The thermometer should be placed as close as practical to the furnace...

Страница 20: ...ower assembly to slide into blower rails Push blower assembly towards back of furnace ensuring blower assembly is correctly placed in blower rails Insert blower shroud on the front of the blower housi...

Страница 21: ...ture and drapes so that the supply air registers and return air grilles are unobstructed 5 If you have a perimeter duct system ideally the warm air should bathe the cold exterior walls Avoid the use o...

Страница 22: ...ft blue and not impinging on the heat exchanger CAUTION Label all wires prior to disconnection when servicing controls Wiring errors can cause improper and dangerous operation Always verify proper ope...

Страница 23: ...TRIAL FOR IGNITION CIRCULATING AIR FAN ON AFTER DELAY FLAME SENSE LOST MAIN VALVE CLOSES THERMOSTAT CALL FOR HEAT ENDS MAIN VALVE CLOSES COMBUSTION AIR BLOWER OFF AFTER POST PURGE CIRCULATING AIR FAN...

Страница 24: ...23 MODEL F80A 50V51 250...

Страница 25: ...ne voltage to L1terminal of must be 120 volts with reference to furnace chassis 2 Furnace must be reliably connected to earth ground 3 Induced blower moving main burner flame away from the flame senso...

Страница 26: ...25 MODEL F80A R R 3 FACTORY SETTING...

Страница 27: ...O 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 LEAVE THE BUILDING IMMEDIATELY IMMEDIATELY CALL YOUR GAS SUPPLIER FROM A P...

Страница 28: ...nside air from outdoors from an attic or crawl space If renovations are done be sure that air supply openings are not inadvertently covered over with insulation vapor barrier or similar construction m...

Страница 29: ...the next step 8 Gas valve Ensure that the Gas Valve Control is in the ON position see Figure 3 at right 9 Replace the burner access door ensuring that it is properly in place 10 Restore the electric...

Страница 30: ...the furnace All ductwork should be secured to the furnace and all ductwork should be solidly supported throughout the heating system The furnace should be well supported on a level floor or by the me...

Страница 31: ...operation points 5 and 9 will be ignored CAUTION THE FURNACE SHOULD BE OPERATED WITH ALL PANELS IN PLACE NEVER OPERATE THE FURNACE WITH THE BLOWER DOOR REMOVED EXCEPT FOR SERVICE PURPOSES WARNING ALWA...

Страница 32: ...o Warm Air Furnace products Illustrations cover the general appearance of the units at the time of publication and the manufacturer reserves the right to make changes in design and construction at any...

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