5165697-BUM-C-0818
2
Johnson Controls Unitary Products
1. The furnace area must be kept clear and free of combustible materi-
als, gasoline and other flammable vapors and liquids.
2. Insulating materials may be combustible. The furnace must be kept
free and clear of insulating materials. The furnace area must be
examined when installed in an insulated space or when insulation is
added to be sure that the insulation material has been kept away
from the furnace.
3. Follow the instructions exactly as shown on the OPERATING
INSTRUCTION LABEL or the Start-up and Shutdown Instructions
on Page 4 of this manual when lighting the furnace or turning the
furnace off.
4. Should the gas supply fail to shut off or if overheating occurs, shut
off the gas valve to the furnace before shutting off the electrical sup-
ply.
5. Do not use this furnace if any part has been under water. A flood-
damaged furnace is extremely dangerous. Attempts to use the fur-
nace can result in fire or explosion. A qualified service agency
should be contacted to inspect the furnace and replace all gas con-
trols, control system parts, electrical parts that have been wet or the
furnace if deemed necessary.
6. NEVER…Store flammable materials of any kind near your furnace.
Gasoline, solvents, and other volatile liquids should be stored only
in approved containers outside your home. These materials vapor-
ize easily and are extremely dangerous.
7. NEVER…Store cleaning materials near your furnace. Materials
such as bleaches, detergents, powdered cleansers, etc., can cause
corrosion of the heat exchangers.
8. NEVER…Use the area around your furnace as a storage area for
items which could block the normal flow of air. This flow of air is
required for ventilation of the various furnace components.
While you are away
Your furnace is equipped with a safety device which will shut off the
supply of gas to the burner in case of malfunction. For this reason it is
never practical to assume that the furnace will operate unattended for a
long period of time, especially if there is a possibility of damage to your
property because of freezing. So, if you plan to be away from home,
arrange for someone to check your house every day.
SEASONAL SERVICE INFORMATION
During extreme cold weather, ice may form on the furnace roof jack
crown. Small amounts of ice forming on the roof jack will present no
problem to proper furnace operation. However, excessive ice formation
could restrict the combustion air supply to the burner causing inefficient
burner operation.
When the temperature is very cold, near zero or below, it is recom-
mended that the roof jack be inspected every day or more frequently if
required. If ice has started to collect on the roof jack crown, it should be
carefully broken off.
Your Service Technician
Your furnace's best friend is your qualified service technician. If the unit
gives any indication of improper operation, call your service technician.
If the service technician is allowed to perform the normal routine care of
your furnace, he can many times detect potential difficulties and make
corrections before trouble develops. Preventative maintenance of this
type will allow you to operate the unit with a minimum of concern, and at
the same time will pay for itself in added years of comfort.
DESCRIPTION
This furnace shall be installed in the downflow position. Figure 1 shows
a typical model in the downflow position. The furnace is equipped with
an induced-draft vent blower and atmospheric burner. Combustion air is
drawn through the roof jack and pushed into the burner box. Flue gas is
forced from the heat exchanger by the vent blower and discharged
through the flue pipe to the outside atmosphere.
This is a forced air furnace. The furnace circulating air blower draws
cool air from the house, passes it over the hot furnace heat exchanger
and circulates the warmed air through the ductwork to the house.
The furnace is equipped with the controls necessary for proper opera-
tion. The various components referred to in this manual and on the fur-
nace rating plate are identified in Figure 1.
WARRANTY AND RESPONSIBILITIES
It is the sole responsibility of the home owner to make certain that the
gas furnace has been correctly set up and converted to the proper fuel
(Propane or Natural gas) and adjusted to operate properly.
The manufacturer warrants the furnace to be free from defects in mate-
rial or workmanship for the stated time in the warranty agreement (see
warranty certificate packed with the furnace).
However, the manufacturer will not be responsible for any repair costs
to correct problems due to improper set-up, improper installation, fur-
nace adjustments, improper operating procedure by the user, etc.
It is also the sole responsibility of the home owner to make sure that the
home if located above 2,000 ft. altitude be derated.
WARNING
FIRE OR EXPLOSION HAZARD
This furnace is designed and approved for use with Natural Gas
and (LP) Propane Gas ONLY. DO NOT BURN ANY LIQUID FUEL
OR SOLID FUEL IN THIS FURNACE.
Burning any unapproved fuel will result in damage to the furnace heat
exchanger, which could result in Fire, Personal Injury, and/or Property
Damage.
!
FIGURE 1:
Component Locations
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