Determing Combustion AIR

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.

DANGER

THIS FURNACE AND ANY OTHER FUEL BURNING APPLIANCE MUST BE PROVIDED WITH ENOUGH FRESH AIR FOR PROPER COMBUSTION AND VENTILATION OF THE FLUE GASES. MOST HOMES WILL REQUIRE THAT OUTSIDE AIR BE BROUGHT TO THE FURNACE AREA. FAILURE TO DO SO CAN CAUSE PERSONAL INJURY OR DEATH FROM CARBON MONOXIDE POISONING.

CASE 1:

FURNACE LOCATED IN AN UNCONFINED SPACE

Unconfined space does not necessarily mean that combustion and ventilation will not have to be introduced from the outdoors, particularly in airtight homes. Refer to the appropriate installation code requirements regarding the minimum combustion air required for all fuel burning appliances located within the unconfined area.

If the amount of combustion and ventilation air is insufficient to properly operate the furnace and other fuel burning appliances within the unconfined area, it will be necessary to supply it from the outdoors based on the criteria used when calculating the air supply for a confined space.

NOTE: If planning to use the inside air of an unconfined space, remember to test for proper furnace operation (as well as other fuel burning appliances located within the unconfined space) with respect to adequate combustion and ventilation air with fireplace dampers open, clothes dryer running, bathroom exhaust fans on, kitchen range hood on, etc.

CASE 2:

FURNACE LOCATED IN A CONFINED SPACE

A confined space, (any space smaller than the minimums discussed in CASE 1), must have two air openings 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 outdoors, the method outdoor air (if used) is introduced, and taking into account any other fuel burning appliances in the confined space.

If sufficient indoor combustion and ventilation air is available for the furnace and all other fuel burning appliances, even when clothes dryers, bathroom fans, range hoods, etc. are running, size each opening according to the appropriate installation codes.

NOTE: If using grilles to cover the two openings, factor in the free area of the grille. Typically, a grille will have a free area approximately 50% of its nominal size. Consequently, if the required opening is 10 inches x 10 inches , it will have to be doubled if using a sidewall grille with 50% free area.

IMPORTANT: If an exhaust fan, fireplace, clothes dryer or any similar device is present in the indoor area from which the combustion and ventilation air will be drawn, negative pressure could be a problem if natural infiltration from the outdoors does not match the rate at which air is exhausted.

CASE 3:

FURNACE LOCATED IN A CONFINED SPACE, OUTDOOR AIR FROM ATTIC OR CRAWL SPACE

In this circumstance, refer to the appropriate installation code for the free area of the combustion and ventilation air openings. If other fuel burning appliances are present, their combustion air and ventilation air requirements must be added to those of the furnace.

CASE 4:

FURNACE LOCATED IN A CONFINED SPACE, OUTDOOR AIR DUCTED HORIZONTALLY

Similar to CASE 3, outdoor air for combustion and ventilation may be drawn through horizontal ducting. Consult the appropriate installation code for the free area for openings. If other fuel burning appliances are present, their combustion air and ventilation air requirements must be added to those of the furnace.

IMPORTANT: The outdoor grilles must be installed in a location where they will not be obstructed in any manner.

IMPORTANT: If grilles are used on the outside wall, they must be sized properly. Most sidewall grilles have only 50% free area, so the grill size opening must be twice the size of the free air opening requirement.

WARNING

DO NOT ALLOW GAS PIPING TO BE ROUTED THROUGH JOIST SPACES THAT ARE USED FOR RETURN AIR PURPOSES. DO NOT USE JOIST SPACES FOR RETURN AIR PURPOSES IF THE JOIST SPACE ALREADY CONTAINS PLUMBING STACKS, CHIMNEY COMPONENTS, ETC. UNLESS THE PORTION USED FOR RETURN AIR PURPOSES CAN BE COMPLETELY ISOLATED FROM PORTIONS WITH OTHER USAGES.

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.