Use and Care Manual

1010352-UUM-J-0818
Johnson Controls Unitary Products 5
FURNACE MAINTENANCE - USER
INFORMATION
EXTERNAL AIR FILTERS
Filters used with this furnace must be installed external to the furnace
casing. DO NOT attempt to install filters inside the furnace cabinet.
Some installations may have the air filter in a rack attached to the cas-
ing of the furnace or placed in the return air duct. If the filter location or
replacement process is not obvious, contact your installer or service
technician for assistance.
Every time the external air filters are changed the following items
should be visually inspected:
• Check combustion air and vent pipe for blockage or leakage.
• Check all components to be sure they are in good condition and
that there are no obvious signs of deterioration.
• Check the drain lines to make sure there are no cracks or leaks.
• Check for dirt or lint on any surfaces or on components. Do not
try to clean any of the surfaces or components. Cleaning of the
furnace and its components must be done by a qualified service
professional.
If during the inspection of your furnace, you find any of the following
conditions:
• Excessive amounts of dust and lint on components.
• Damaged or deteriorated components or surfaces.
• Leaks or blockage in the vent pipe passages.
• Water on any surface inside or outside of the furnace.
Do not operate the furnace, call a certified dealer or servicing contractor
to check or clean your furnace, or for more information if you have
questions about the operation of your furnace.
If all components appear to be in good operating condition, replace the
furnace access panels/doors. Turn ON the gas and electrical power
supplies to the furnace, and set thermostat to the desired temperature.
How to Clean your Filter
High-velocity filters may be cleaned with a vacuum cleaner or washed
with a garden hose. Be sure to shake off excess water and allow filter to
completely dry before re-installing the filter.
Replace throw away filter(s) with the same size new filter(s). Throw
away filter(s) may be replaced with cleanable filter(s) at this time.
BLOWER CARE
Even with good filters properly in place, blower wheels and motors will
become dust laden after months of operation. The entire blower assem-
bly should be inspected annually. This service must be performed by a
qualified service agency.
NOTE: The spring-loaded safety cut-off switch, mounted at the blower
deck will automatically cut off the electrical power supply to the furnace
when the furnace blower access panel/door is removed. As a safety
precaution, all electrical power and the gas supply to the furnace should
be turned off before servicing.
MOTOR LUBRICATION
The motors in these furnaces are permanently lubricated, and do not
require periodic oiling.
WARNING
Before proceeding, be sure the area is well ventilated. Turn the ther-
mostat OFF. If the blower is running, wait until it stops automatically.
Turn OFF the gas and electrical power supplies to the furnace. Check
all metal parts and surfaces to be sure they have cooled to room tem-
perature before you begin.
!
WARNING
Make sure you DO NOT move the clip on weight on the
indoor fan wheel when cleaning the wheel. This weight is
used to balance the wheel. Moving the weight will cause the
fan wheel to vibrate.
!