Fedders F80A dimensions Airflow

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MODEL F80A

AIRFLOW

For proper furnace operation, airflow over the heat exchanger is of utmost importance. Insufficient airflow accelerates metal fatigue and failure in the heat exchanger and excessive airflow promotes accelerated corrosion of the heat exchanger. IMPORTANT: Do not bypass this step of the start up procedures.

CALCULATING AIRFLOW

There are circumstances where it may be desirable to know the airflow delivery through the duct system, such as when

SETTING BLOWER "OFF" TIMINGS

Both control systems allow flexibility in the FAN OFF delay function. The control is located in the blower compartment. Follow the same steps as listed in Adjusting Blower Speeds to access the control.

DIP SWITCH

HEAT "OFF" DELAY

SW 1

SW-2

SEC.

 

 

 

ON

ON

60

 

 

 

OFF

ON

90

 

 

 

ON

OFF

120*

 

 

 

OFF

OFF

180

 

 

 

estimating the amount of airflow available for air condition- ing. This can be done by direct measurement with electronic or sloped manometers and velometers, or by using the for- mula below.

Where:

Cfm is airflow in cubic feet per minute ΔT is the temperature rise

Bonnet output is the furnace output capacity from the rating plate.

NOTE: The bonnet output will vary directly with the input. If the actual input is below the stated input, the output will be reduced in the same ratio.

ADJUSTING BLOWER SPEEDS

If the blower speeds require adjusting, follow these steps:

WARNING

DISCONNECT THE ELECTRICAL SUPPLY TO THE FURNACE BEFORE ATTEMPTING TO CHANGE THE BLOWER SPEED. FAILURE TO DO SO COULD RESULT IN ELECTRICAL SHOCK RESULTING IN PERSONAL INJURY OR LOSS OF LIFE.

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 integrated furnace control and plug in the desired wire on the HEAT" terminal. When this configuration is used, the following color codes are used: Black - High Speed, Blue - Medium-High Speed, Yellow - Medium-Low Speed, and Red - Low Speed. The unused leads are connected to the “PARK” terminals on the 50A55-250 integrated furnace control.

IMPORTANT: If the heating speed and cooling speed are to be the same, remove the cooling lead from the control, tape it off, then install a “piggyback” connector from the control “HEAT” terminal to the “COOL” terminal. UNDER NO CIRCUMSTANCE MAY TWO MOTOR WINDINGS BE POWERED SIMULTANEOUSLY.

3.Slide the blower assembly back into position, and refasten with the sheet metal screws.

4.Reinstall the blower compartment door.

5.Recheck temperature rise.

NOTE: Temperature rise should always be rechecked whenever blower speed changes are done.

Figure 11: 50A55-250 Dip Switch Settings

These dip switches control the “Blower off” timing

HOW TO REMOVE THE BLOWER

1.Disconnect power from furnace.

2.Remove thermostat wiring from the integrated furnace control.

3.Remove L1, Neutral and Ground connections between the integrated furnace control and the Furnace electrical connection junction box.

4.Remove 12 pin male molex connector from female connection point, and ground connection from integrated furnace control.

5.Unscrew 2 blower housing bolts located in the front blower shroud as indicated in figure 12 below. Remove front blower shroud from furnace.

6.Slide blower assembly towards front of furnace. Blower is mounted on rail system, and will slide forward about 10 inches before blower is clear of rails.

HOW TO INSTALL THE BLOWER

1.Place blower into blower compartment.

2.Keep blower assembly tight to top of blower compartment. Line up blower 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 housing. Insert blower housing bolts and tighten.

3.Connect thermostat wiring to the integrated furnace control.

4.Connect L1, Neutral and Ground connections between the integrated furnace control and the furnace electrical connection junction box.

5.Connect 12 pin male molex connector to female connection point, and ground connection to the integrated furnace control.

6.Turn on power to the furnace.

Figure 12: Blower bolts

Bolts

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Contents Model F80A Introduction SafetySafety Rules Codes What to do if YOU Smell GASDo not Destroy this Manual Other Considerations Furnace SizingGeneral AIR Conditioning Installation PositionsInspection / Access Panel Clearances Clearances to CombustiblesDuctwork Steps DuctworkGuide Case Furnace Located in a Confined Space Determing Combustion AIRCase Furnace Located in AN Unconfined Space Design Considerations Furnace VentingDefinitions Vent Sizing Vent InstallationInducer Blower Installation Vent Connector Left Inducer Position 35-2Vent Termination Dedicated VentingGAS Piping Existing Vent ConsiderationsGAS Supply Conversions Airflow Specifications High Altitude Specifications USAHigh Altitude Specifications Canada Electrical Specifications Outlet Regulator Pressure Vent BossLOW Voltage Wiring Furnace ConnectionImportant USE Copper Conductors only ThermostatStart UP Procedures To Start the FurnaceTo Shut Down the Furnace Sequence of OperationTemperature Rise Check Checking Furnace InputAirflow Maintenance Annual Inspection / ServiceElectronic AIR Cleaner HUMIDIFIER/ Electronic AIR CleanersInduced Blower Circulating FANTroubleshooting 50V51-250 General Troubleshooting WHITE-RODGERS Integrated FAN Control Factory Setting User’s Information Manual Regulator Vent General Safety RulesFurnace Components Furnace Operation Information Air Filter Sequence of Operation Variations

F80A specifications

The Fedders F80A is a notable air conditioning unit that has gained recognition for its efficiency, performance, and convenience. Designed to cater to both residential and light commercial spaces, it combines robust features with advanced technologies to provide optimal cooling solutions.

One of the standout characteristics of the Fedders F80A is its impressive cooling capacity. With a BTU rating that makes it suitable for medium-sized rooms, this unit efficiently maintains comfortable indoor temperatures even during the hottest summer months. Users can benefit from its powerful performance without worrying about energy wastage.

Energy efficiency is a critical aspect of the Fedders F80A. It features an Energy Efficiency Ratio (EER) that meets current regulatory standards, which translates to lower energy bills and a reduced environmental footprint. The inclusion of eco-friendly refrigerants further enhances its appeal, making it a responsible choice for environmentally-conscious consumers.

The Fedders F80A is also equipped with user-friendly controls. An intuitive remote control allows for easy operation from anywhere in the room. Additionally, the unit comes with programmable settings that let users schedule their cooling preferences, ensuring comfort at all times without unnecessary energy expenditure.

Another key feature of this model is its multi-speed fan. The fan operates on various speeds, providing users with flexibility in airflow and noise levels. Whether a quiet night is desired or a powerful cooling burst is needed, the Fedders F80A caters to individual preferences effectively.

Installation and maintenance are also areas where the Fedders F80A shines. Its relatively straightforward installation process allows for quick setup, and its design makes routine maintenance a hassle-free task. Periodic cleaning of the filters ensures continued efficient operation, contributing to the unit's durability and longevity.

Overall, the Fedders F80A combines powerful cooling capabilities with energy efficiency and user-centric features. Its blend of technology and user-friendly design makes it a suitable choice for anyone looking to invest in reliable air conditioning. With its reputation for performance and efficiency, the Fedders F80A stands as a commendable option in the competitive air conditioning market.
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