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  5. Installation, Operation And Maintenance Manual

Fedders F80A Installation, Operation And Maintenance Manual

Manual is about: CATEGORY I NATURAL GAS AND LP GAS MID EFFICIENCY WARM AIR FURNACE

Summary of F80A

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    Installation, operation and maintenance model f80a category i natural gas and lp gas mid efficiency warm air furnace please read the operating instructions and safety precautions carefully and thoroughly before installing and operating your furnace. Keep this manual in a safe place for future refere...

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    1 model f80a introduction this gas fired midefficiency (non-condensing) furnace is an up flow, counterflow or horizontal flow warm air furnace suitable for residential and light commercial heating applications from 35,000 to 135,000 btu/hr. This appliance is a cga / aga design certified as a categor...

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    2 warm air furnace danger 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, or a cellular phone from a location well away from the building. Follow...

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    3 model f80a furnace sizing the maximum hourly heat loss for each heated space shall be calculated in accordance with the procedures described in manual j titled, "load calculation" published by the air conditioning contractors of america, or by any other method which is suitable for local condition...

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    4 warm air furnace upflow installation this furnace comes assembled for installation in the upflow position and ready for vertical venting. In the event that the furnace will be installed in another position, the following guidelines should be followed. Counterflow installation suggested method for ...

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    5 model f80a dimensions (inche model width depth height supply a 35-2 14-1/2 29 35 13-1/2 x 19 50-3 14-1/2 29 35 13-1/2 x 19 70-3 16 29 35 15 x 19 70-4 17-1/2 29 35 16-1/2 x 19 85-3 17-1/2 29 35 16-1/2 x 19 85-4 4 100- 20-1/2 29 35 19-1/2 x 19 100-5 20-1/2 29 35 19-1/2 x 19 115-5 22 29 35 21 x 19 mo...

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    6 warm air furnace ductwork steps: 1. Position the furnace to minimize ductwork length and fittings. 2. Cut open a return air inlet. The choices are: a) either side b) furnace bottom c) any combination, i.E. Two sides or a side and the bottom. Note: 2 return openings required for 70-4, 100-5, 115-5 ...

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    7 model f80a danger read, understand and follow all instructions in this section. Failure to properly vent or supply combustion air to this furnace can cause carbon monoxide poisoning, or an explosion or fire, resulting in property damage, personal injury or loss of life. Warning do not allow gas pi...

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    8 warm air furnace warning select appropriate venting materials and ensure proper clearances to combustibles. Inadequate venting or failure to maintain proper clearances to combustibles may allow the accumulation of the products of combustion within the building resulting in fire, nausea, or asphyxi...

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    9 model f80a important: this furnace is not to be vented in the same chimney or venting system serving a solid fuel appliance (wood or coal). If the furnace is to be vented into a chimney that no longer serves a fireplace, the fireplace opening is to be permanently sealed. The furnace must connect t...

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    10 warm air furnace vent connector the furnace may be vented with a listed single wall or type b double wall vent connector to a b-vent or lined masonry chimney. Most united states jurisdictions require a minimum 28-gauge galvanized single wall vent connector. Most canadian jurisdictions require the...

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    11 model f80a vent termination terminate all vertical vents with a listed vent cap or roof assembly unless local codes require otherwise. Locate the termination in an area free of positive pressure or wind eddies. Eddies may occur when wind swirls over roof peaks. They can cause downdrafts and inter...

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    12 warm air furnace warning this furnace is factory equipped to burn natural gas only. Conversion to l.P. Gas requires special kit no. 30482. Failure to use the proper conversion kit can cause fire, explosion, carbon monoxide poisoning, property damage, personal injury or loss of life. Caution conve...

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    13 model f80a conversions high altitude in the united states, the modifications for high altitude are based on a 4 percent reduction of input capacity for every 1000 feet above sea level. Table 4 on page 14 illustrates the impact of altitude for selected elevations. Ratings shown apply to the highes...

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    14 warm air furnace table 3: high altitude specifications - canada model input x 1000 altitude feet input btu/hr output btu/hr nat. Orifice l.P. Orifice qty. Qty. 2 3 4 5 6 7 8 0 - 2000 35,000 28,000 1.95 mm 1.20 mm 35 2000 - 4500 31,500 25,200 1.90 mm 1.15 mm 0 - 2000 50,000 40,000 1.95 mm 1.20 mm ...

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    15 model f80a setting the manifold (outlet) gas pressure (f92-1003 36g valve pressure check kit) 1. Shut off the gas upstream of valve and move valve switch to “off”. 2. Using the 3/32 inch hex wrench that is included in the valve pressure check kit, rotate outlet pressure tap screw one revolution c...

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    16 warm air furnace thermostat location the thermostat should be located approximately 5 feet above the floor, on an inside wall where there is good natural air circulation, and where the thermostat will be exposed to average room temperatures. Avoid locations where the thermostat will be exposed to...

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    17 model f80a start up procedures this furnace is equipped with a hot surface ignition (hsi) device. Each time that the room thermostat calls for heat, the hsi lights the main burners directly. See the lighting instructions on the furnace. To start the furnace: 1. Remove the burner compartment acces...

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    18 warm air furnace figure 10: piggyback connector remove blue wire from heat terminal, tape it off, and replace it with a jumper. Connect the black wire and jumper to cool. Checking furnace input • the natural gas supply pressure should be a maximum of 7 inches w.C. And minimum of 5 inches w.C. • t...

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    19 model f80a adjusting blower speeds if the blower speeds require adjusting, follow these steps: 1. Remove the blower compartment door. 2. Access the motor electrical wiring. The blower speed is changed at the integrated furnace control. Remove the wire from the "heat" terminal of the 50a55-250 int...

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    20 warm air furnace warning disconnect the electrical power supply to the furnace before attempting any maintenance. Failure to do so can cause electrical shock resulting in personal injury or loss of life. Caution do not operate the furnace without an air filter. Warning holes in the exhaust piping...

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    21 model f80a induced blower the induced blower motor should be inspected and cleaned if necessary. Clear any dust buildup from the ventilation ports. Circulating fan the condition of the circulating fan should be checked to ensure that it is free of excessive dust buildup, debris, etc. The mechanic...

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    22 warm air furnace troubleshooting sequence of operation: white rodgers integrated furnace control with white rodgers 36g22 gas valve apply power to appliance thermostat calls for heat air proving switch proved open? Combustion air blower on air proving switch proved closed prepurge hot surface ign...

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    23 model f80a 50v51-250

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    24 warm air furnace table 11: general troubleshooting white-rodgers integrated fan control if and check or repair induced blower does not energize 2 flash code does not come o n 1. Induced blower wiring. 2. Induced blower. Induced blower does not energize 2 flash code does come on 1. Pressure switch...

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    25 model f80a r r 3 factory setting.

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    User’s information manual model f80a series gas-fired warm air furnace furnace components . . . . . . . . . . . . . . . . . .1 regulator vent . . . . . . . . . . . . . . . . . . . . . . .1 general safety rules . . . . . . . . . . . . . . . . . .1 furnace operation information to start the furnace . ...

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    1 model f80a furnace components figure 1 (below) is provided to help identify the components of your furnace. Regulator vent most natural gas systems and all lp gas systems have a service regulator located near the point where the gas piping enters the building. The propane tank will normally have a...

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    2 warm air furnace warning improper installation, adjustment, alteration, service or maintenance can cause property damage, personal injury or death for assistance or additional information, consult a qualified installer, service agency, or your gas supplier. Warning devices attached to either the v...

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    3 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...

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    4 warm air furnace sequence of operation 1. Thermostat, responding to cool room, calls for heat. 2. Combustion air blower begins. 3. After 15 second prepurge, hot surface igniter warms up. 4. After approximately 5 seconds, the gas valve will open, and the burners ignite. 5. Thirty seconds after the ...

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    5 the information in this manual supersedes and replaces the previous instruction/operation manual with regards to 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 const...