5129599-YTG-B-1115
Johnson Controls Unitary Products
3
FILTER PERFORMANCE
The airflow capacity data published in the “Blower Perfor-
mance” table shown 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.
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.
*
- 24" clearance in front and 18" on side recommended for service
access.
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.
S1-1NP0347 - All Models
Concentric Vent Termination -
For use through rooftop, side-
wall. Allows combustion air to enter and exhaust to exit through
single common hole. Eliminates unsightly elbows for a cleaner
installation.
S1-1CT0302 (2") & S1-1CT0302-636 (2")
S1-1CT0303 (3") & S1-1CT0303-636 (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 visible 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 S1-02630228000).
S1-1NK0301
Side Return Filter Racks -
S1-1SR0200 - All Models
S1-1SR0402 - 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.
S1-1BR0514 or 1BR0614 - For 14-1/2” cabinets
S1-1BR0517 or 1BR0617 - For 17-1/2” cabinets
S1-1BR0521 or 1BR0621 - For 21” cabinets
S1-1BR0524 or 1BR0624 - For 24-1/2” cabinets
Combustible Floor Base Kit -
For installation of these fur-
naces in downflow applications directly onto combustible floor-
ing material, These kits are required to prevent potential
overheating situations.tible floor base kit provides access for
combustible airflow.
S1-1CB0514 - For 14-1/2” cabinets
S1-1CB0517 - For 17-1/2” cabinets
S1-1CB0521 - For 21” cabinets
S1-1CB0524 - For 24-1/2” cabinets
High Altitude Pressure Switches -
For installation where the
altitude is less than 5,000 feet it is not required that the pres-
sure switch be changed. For altitudes above 5,000 feet, see kits
below.
S1-1PS3308 - All Models
Thermostats
- Compatible thermostat controls are available
through accessory sourcing.
EXTERNAL STATIC PRESSURE SETUP
Set appropriate airflow per temperature rise for gas heating. Set
appropriate airflow per “Blower Performance CFM” table for
cooling/heat pump heating operating based on outdoor unit
size.
To measure external static pressure:
•
Measure the supply air static pressure
•
Record this positive number
•
Measure the return air static pressure
•
Record this negative number
•
Treat the negative number as a positive and add the two
numbers together
•
This is total system static
NOTICE
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 on a
20x25 filter.
Recommended Filter Sizes (High velocity 600 FPM)
CFM
Cabinet
Size
Side
(in)
Bottom
(in)
1000
A
16 x 25
14 x 25
1200
B
16 x 25
16 x 25
1600
C
16 x 25
20 x 25
2000
C
(2) 16 x 25
20 x 25
2000
D
(2) 16 x 25
22 x 25
Unit Clearances to Combustibles
Application
Upflow
Downflow
Horizontal
Top
1" 0" 0"
Vent
0" 0" 0"
Rear
0" 0" 0"
Side
0" 0" 1"
Front*
0" 0" 0"
Floor
Combustible
Combustible
1
1. For combustible floors only when used with special sub-base.
Combustible
Closet
Yes
Yes
Yes
Line Contact
No
No
Yes
Supply Duct
Return
Duct