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To remove bottom mounted filter(s) on
all furnaces, push the looped end of the
filter retainer to the side and then lift up
to expose the filter for removal. Reverse
the procedures to install filters.
HOW TO CLEAN YOUR
FURNACE'S FILTER
High-velocity filters may be cleaned with
a vacuum cleaner or washed with a gar-
den hose. Be sure to shake off excess
water before re-installing the filter.
MOTOR LUBRICATION
The motors in these furnaces are per-
manently lubricated, and require no pe-
riodic oiling.
FILTER SIZES
MODEL
SIDE
P3URD08N03701
16 x 25
P3URD10N05501
16 x 25
P3URD12N07501
16 x 25
P3URD16N07501
16 x 25
P3URD14N09501
16 x 25
P3URD20N09501 (2) 16 x 25
P3URD20N11201 (2) 16 x 25
P3URD20N13001 (2) 16 x 25
NOTE : Filter must be high velocity type.
Unitary Products Group
P.O. Box 1592, York, Pennsylvania USA 17405-1592
Subject to change without notice. Printed in U.S.A.
Copyright © by York International Corporation 1996. All Rights Reserved.
INSTALLATION AND
MAINTENANCE
INSTRUCTIONS
It is the owner's responsibility to ensure
that an annual inspection of the entire
heating portion of the unit is made by a
qualified service agency.
The inspection should include heating
element, vent/combustion air piping, to
see that they are clear and free of ob-
structions and without holes or corro-
sion.
Make sure the horizontal run of the vent
system slopes upward and all of the con-
nections are secure.
Make sure the return air duct connec-
tions are physically sound and sealed to
the furnace casing, and terminates out-
side the space containing the furnace.
Make sure no sagging, cracks, gaps,
etc. exist around the base of the furnace.
BOTTOM
Check the main burner flames for proper
14 x 25
adjustment per the illustration below.
16 x 25
16 x 25
20 x 25
20 x 25
20 x 25
22 x 25
22 x 25
Routine periodic maintenance checks
should be done on your furnace at least
every time you check the filters.
®
Remove the front panels and the panel
on the front of the burner box after turn-
ing the knob on the gas control to the
OFF position. Check the following items:
Check for dust and lint on the sensor and
main burners.
Check combustion air and vent pipe for
blockage, corrosion or leakage.
Check all components to be sure they
are in good condition.
If all components appear to be in good
operating condition, turn the knob on the
gas control to the ON position after re-
placing the front panel of the burner box.
Replace the front panels. Restore gas and
power supplies to the furnace, and set
thermostat to the desired temperature.
If, during your inspection of your fur-
nace, you find any of the following con-
ditions:
• •
Excessive amounts of dust and lint
on components.
• •
Damaged or deteriorated compo-
nents or surfaces.
• •
Blockage in the combustion air or
vent pipe passages.
Call a certified dealer/service man to
check your furnace, or for more informa-
tion if you have questions about the op-
eration of your furnace.
SBY
CAUTION: Before proceeding,
be sure the area is well ventilated.
Turn the thermostat 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 temperature
before you begin.
650.75-O3Y
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