MODEL F80A
INTRODUCTION
This gas fired midefficiency
This appliance is a CGA / AGA design certified as a Category I chimney vent central forced air furnace with all combustion air supplied from the ambient air around the furnace.
Furnace models F80A50, F80A70, F80A85, F80A100, F80A115 and F80A135 may be field converted from natural gas to LP gas using Kit No. 30482, or may be field converted from LP gas to natural gas using Kit No. 30551. Contact manufacturer for conversion kit availability. *Furnace model F80A35 cannot be converted to LP, and is not approved for conversion.
The furnace is shipped completely assembled. Please inspect for damage, as the furnace is unpacked.
SAFETY
Throughout the manual, symbols and words are used to draw attention to potentially hazardous conditions.
DANGER
THIS INDICATES AN IMMINENTLY HAZARDOUS SITUATION WHICH, IF NOT AVOIDED, WILL RESULT IN DEATH OR SERIOUS INJURY.
WARNING
THIS INDICATES A POTENTIALLY HAZARDOUS SITUATION WHICH, IF NOT AVOIDED, COULD RESULT IN DEATH OR SERIOUS INJURY.
CAUTION
THIS INDICATES A POTENTIALLY HAZARDOUS SITUATION, WHICH, IF NOT AVOIDED, MAY RESULT IN MINOR OR MODERATE INJURY.
SAFETY RULES:
1.Use this furnace only with type of gas approved for this furnace. Refer to the furnace rating plate.
2.Install this furnace only in dry indoor locations (protected from weather).
3.Provide adequate combustion and ventilation air to the furnace space as specified in the Determining Combustion Air section on page 7 of these instructions.
4.Combustion products must be discharged outdoors. Connect this furnace to an approved vent system only, as specified in the Furnace Venting section on page 8 of these instructions.
5.Never test for gas leaks with an open flame. Use a commercially available soap solution made specifically for the detection of leaks to check all connections as specified in the Gas Supply section on page 12 of these instructions.
6.Always install furnace to operate within the furnace’s intended temperature rise range with a duct system which has an external static pressure within the allowable range, as specified in the Furnace Sizing section on page 3, the Ductwork section on page 6, and the Airflow section on page 19 of these instructions.
7.When a furnace is installed so that the supply ducts carry air circulated 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 furnace. (Furnace for heating the home located in the attached garage, for example).
8.A gas fired furnace for installation in a residential garage must be installed so that the burners and ignitor are no less than 18 inches above the floor. The furnace must be located, or protected to avoid physical damage by vehicles.
9.THIS FURNACE IS NOT TO BE USED FOR TEMPORARY HEATING FOR BUILDINGS UNDER CONSTRUCTION.
10.Nox Baffles are factory installed in the heat exchanger tubes of this furnace, and must remain installed regardless of fuel being used.
DANGER
DO NOT INSTALL THIS FURNACE IN A MOBILE HOME!
THIS FURNACE IS NOT APPROVED FOR INSTALLATION IN A MOBILE HOME. DOING SO COULD CAUSE FIRE, PROPERTY DAMAGE, PERSONAL INJURY OR LOSS OF LIFE.
WARNING
THE FURNACE CONTAINS FOIL COVERED FIBERGLASS INSULATION. INHALATION OF FIBERGLASS PARTICLES IS ASSOCIATED WITH RESPIRATORY DISEASE INCLUDING CANCER.
WARNING
THE FUEL SUPPLIER NORMALLY ODORIZES NATURAL GAS AND PROPANE. IN SOME CASES, THE ODORANT MAY NOT BE PERCEIVABLE. INSTALLATION OF UL AND CUL RECOGNIZED FUEL GAS DETECTORS INSTALLED IN ACCORDANCE WITH THEIR MANUFACTURER’S INSTRUCTIONS IS RECOMMENDED AS AN ADDITIONAL MARGIN OF SAFETY.
DANGER
FIRE OR EXPLOSION HAZARD
If the information in these instructions is not followed exactly, a fire or explosion may result, causing property damage, personal injury or loss of life.
CAUTION
MAKE SURE TO REMOVE FOAM BLOWER HOUSING SHIPPING SUPPORTS BEFORE OPERATING FURNACE.
SHIPPING SUPPORTS ARE LOCATED ON THE BOTTOM RIGHT AND BOTTOM LEFT SIDES OF BLOWER HOUSING.
1
