570930-BUM-C-0112
Johnson Controls Unitary Products
3
AIR FILTER
The filter supplied with the furnace is a throw-away type. Filters need to
be cleaned frequently. Shake out all loose dirt, and use vacuum cleaner
to clean additionally. This method of cleaning will prolong life of filters.
DO change filters often since clean filters not only provide added com-
fort, better and cleaner environment, but increase the efficiency of the
furnace as well.
FILTER LOCATION:
The furnace's front panel must be removed to gain
access to the filter of the downflow furnace. (See Figure 1.) However,
the filter for the upflow furnace* is located behind the return air grill,
adjacent to the furnace closet or any other location in the return air.
RETURN AIR
Return air must be provided back to the circulating blower in order to
provide air distribution. DO NOT OBSTRUCT ANY RETURN AIR
GRILLE. To do so will cause the furnace heating elements to cycle off
and on repeatedly.
WHILE YOU’RE AWAY
The power supply to your furnace is equipped with either a fused or
breaker type disconnect. In case of an overload, this will interrupt the
operation of your furnace until it is reset or fuse replaced. For this rea-
son it is never practical to assume that the furnace will operate unat-
tended for long periods of time, especially if there is a possibility of
damage to your property because of freezing. So, if you plan to be
away, arrange for someone to check your home every day or so.
AT THE BEGINNING OF EACH HEATING SEASON
1. Replace filters as discussed previously. Clean dust and lint from in
and around the furnace. Clean dust and lint from blower and blower
compartment.
2. If furnace fails to operate properly:
a.
Be sure electrical power is being supplied to furnace. Check
main household power supply.
b.
If, after following this procedure, the furnace still fails to oper-
ate, shut off furnace and contact your service technician.
YOUR AUTHORIZED SERVICE TECHNICIAN
Your furnace's best friend is your service technician. If the unit gives
any indication of improper operation, call your authorized service tech-
nician. If the service technician is allowed to perform the normal routine
care of your furnace, many times he can detect potential difficulties and
make corrections before trouble develops. Preventive maintenance of
this type will allow you to operate this unit with a minimum of concern
and pay for itself in added years of comfort.
OPTIONAL AIR CONDITIONING ACCESSORIES
This furnace is equipped with a blower and control system to add-on air
conditioning and heat pumps to specified sizes. Insulation and coil shelf
kit (3500-8941 for downflow or 3500-8961/A for upflow) must be
installed when adding on such remote air conditioning systems.
HIGH PERFORMANCE BLOWER ACCESSORY
PACKAGE
All EB furnaces are equipped with a blower and control system to add-
on air conditioning and heat pumps to specified sizes. If the require-
ment is to achieve more air flow or cooling than specified, then the
blower inside the furnace has to be replaced with an accessory blower
package 3500-7901*. This accessory blower package would deliver air
conditioning up to 5-tons, and heat pump up to 4-tons. Accessory pack-
age (3500-7901*) includes blower, insulation, coil shelf, trap, clamps,
etc. Please refer to the installation instructions packed with the acces-
sory package for more information.
Be sure electrical supply to furnace is turned off at the household
service box and furnace circuit breakers before cleaning.
NOTICE
If the controls are located at the top of the unit, the furnace is an
upflow furnace and the airflow is forced up through the furnace and
into the airways.
Failure to install this insulation and coil shelf kit could result in dam-
age to equipment and/or personal injury. Liability and warranty from
the manufacturer could also be void.
All areas around the line sets, drain hoses and other openings in the
furnace should be sealed airtight. Use some moldable compound or
caulking to seal the area. Failure to do so may result in loss of per-
formance and premature compressor failure.
NOTICE
