FILTER PERFORMANCE
The airflow capacity data published in the “Blower Perfor- mance” table listed above 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 manufac- turer’s recommendation and a transition is used to allow use on a 20x25 filter.
Recommended Filter Sizes (High velocity 600 FPM)
CFM | Cabinet | Side | Bottom | |
Size | (in) | (in) | ||
| ||||
800 | A | 16 x 25 | 14 x 25 | |
1000 | A | 16 x 25 | 14 x 25 | |
1200 | A | 16 x 25 | 14 x 25 | |
1200 | B | 16 x 25 | 16 x 25 | |
|
|
|
| |
1600 | B | 16 x 25 | 16 x 25 | |
1600 | C | 16 x 25 | 20 x 25 | |
2000 | C | (2) 16 x 25 | 20 x 25 | |
2200 | C | (2) 16 x 25 | 20 x 25 | |
2000 | D | (2) 16 x 25 | 22 x 25 |
NOTES:
1.Air velocity through throwaway type filters may not exceed 300 feet per minute (91.4 m/min). All velocities over this require the use of high velocity filters.
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 | Downflow | Horizontal |
Top | 1" | 0" | 0" |
Vent | 0" | 0" | 0" |
Rear | 0" | 0" | 0" |
Side | 0" | 0" | 1" |
Front* | 0" | 0" | 0" |
Floor | Combustible | Combustible1 | Combustible |
Closet | Yes | Yes | Yes |
Line Contact | No | No | Yes |
1. For combustible floors only when used with special
*- 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.
CONCENTRIC VENT TERMINATION -
For use through rooftop, sidewall. Allows combustion air to enter and exhaust to exit through single common hole. Elimi- nates unslightly elbows for a cleaner installation.
Johnson Controls Unitary Products
SIDEWALL VENT TERMINATION KIT -
For use on sidewall,
CONDENSATE NEUTRALIZER KIT - 1NK0301
Neutralizer cartridge has a 1/2" plastic tube fittings for instal- lation in the drain line. Calcium carbonate refill media is also available from the Source 1 Parts (p/n
SIDE RETURN FILTER RACKS -
BOTTOM RETURN FILTER RACKS -
1BR05xx series are galvanized steel filter racks. 1BR06xx are
COMBUSTIBLE FLOOR BASE KIT -
For installation of these furnaces in downflow applications directly onto combustible flooring material, These kits are required to prevent potential overheating situations.tible floor base kit provides access for combustible airflow.
EAC TRANSITION KITS -
For installation of EAC accessories with these furnaces to provide easy transition of return airflow through the EAC to get the proper sealing and reduced airflow leakage.
HIGH ALTITUDE PRESSURE SWITCHES -
For installation where the altitude is less than 5,000 feet it is not required that the pressure switch be changed. For alti- tudes above 5,000 feet, see kits below.
ROOM THERMOSTATS - A wide selection of compatible thermosets are available to provide optimum performance and features for any installation.
1H/1C, manual
1H/1C, auto/manual changeover, electronic programmable, deluxe
1H/1C, auto/manual changeover, electronic programmable.
*For the most current accessory information, refer to the price book or consult factory.
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