York TM9M Technical Manual page 3

FILTER PERFORMANCE
The airflow capacity data published in the "Blower Perfor-
mance" table represents blower performance WITHOUT filters.
All applications of these furnaces require the use of field
installed air filters. All filter media and mounting hardware or
provisions must be field installed external to the furnace cabi-
net. DO NOT attempt to install any filters inside the furnace.
NOTE: Single side return above 1800 CFM is approved as long
as the filter velocity does not exceed filter manufacturer's rec-
ommendation and a transition is used to allow use of a 20 x 25
filter.
Recommended Filter Sizes
Cabinet
CFM
Size
1200 B
1600 C
2000 D
NOTES:
1. Air velocity through throwaway type filters may not exceed 300 feet per min-
ute (91.4 m/min). All velocities over this require the use of high velocity fil-
ters.
2. Do not exceed 1800 CFM using a single side return and a 16x25 filter. For
CFM greater than 1800, you may use two side returns or one side and the
bottom or one return with a transition to allow use of a 20x25 filter.
Unit Clearances to Combustibles
Application Upflow
Top 1"
Vent 0"
Rear 0"
Side 0"
1
0"
Front
Floor Combustible
Closet Yes
Line Contact No
1. Line contact only permitted between lines formed by the intersection of the
rear panel and side panel (top in horizontal position) of the furnace jacket
and building joists, studs or framing.
2. For combustible floors only when used with special sub-base.
All furnaces approved for alcove and attic installation.
ACCESSORIES
Propane (LP) Conversion Kit - This accessory conversion kit
may be used to convert natural gas (N) units for propane (LP)
operation.
1NP0681 - All Models
Johnson Controls Unitary Products
Side Bottom
(in) (in)
16 x 25 16 x 25
16 x 25 20 x 25
(2) 16 x 25 22 x 25
Downflow Horizontal
0" 0"
0" 0"
0" 0"
0" 1"
0" 0"
2
Combustible
Combustible
Yes Yes
No Yes
Concentric Vent Termination - For use through rooftop, side-
wall. Allows combustion air to enter and exhaust to exit through
single common hole. Eliminates unslightly elbows for a cleaner
installation.
S1-1CT0302 (2")
S1-1CT0303 (3")
Sidewall Vent Termination Kit - For use on sidewall, two-pipe
installations only. Provide a more attractive termination for loca-
tions where the terminal is visable on the side of the home.
S1-1HT0901 (3")
S1-1HT0902 (2")
Condensate Neutralizer Kit - Neutralizer cartridge has a 1/2"
plastic tube fittings for installation in the drain line. Calcium car-
bonate refill media is also available from the Source 1 Parts (p/
n 026-30228-000).
1NK0301
Side Return Filter Racks -
1SR0200 - All Models
1SR0402 - All Models
Bottom Return Filter Racks - 1BR05xx series are galvanized
steel filter racks. 1BR06xx are pre-painted steel filter racks to
match the appearance of the furnace cabinet.
1BR0517 or 1BR0617 - For 17-1/2" cabinets
1BR0521 or 1BR0621 - For 21" cabinets
1BR0524 or 1BR0624 - For 24-1/2" cabinets
Combutible Floor Base Kit - For installation of these furnaces
in downflow applications directly onto combustible flooring
material, These kits are required to prevent potential overheat-
ing situations. These kits are also required in any applications
where the furnace in installed in a downflow configuration with-
out an evaporator coil, where the combustible floor base kit pro-
vides access for combustible airflow.
1CB0517 - For 17-1/2" cabinets
1CB0521 - For 21" cabinets
1CB0524 - For 24-1/2" cabinets
High Altitude - No high altitude kits are required.
Thermostats - Compatible thermostat controls are available
through accessory sourcing. For optimum performance and
installation, refer to the UPGNET "Low Voltage Wiring Diagram"
document to select and apply controls.
563717-YTG-C-0713
3