Technical Guide

550569-YTG-D-1212
8 Johnson Controls Unitary Products
ACCESSORIES
Refer to Price Manual for specific model numbers.
Electric Heaters - Models shown under Electrical Data include
sequencers and temperature limit switches and fusible links for
safe, efficient operation. Circuit breakers are provided where
shown.
Suspension Kit - Suspension Kit Model 1BH0601 is designed
specifically for upflow application of the units contained in this
technical guide. For suspension of these units in horizontal
applications, it is recommended to use angle support brackets
with threaded rods at locations shown in air handler installation
instructions.
Filter Rack - One of the following external filter rack accesso-
ries: 1FR07* or 1FR08* must be used when unit is installed for
application outlined.
Combustible Floor Base - If an electric heat accessory which
is rated for greater than zero clearance to combustible surfaces
is installed in these air handlers in the downflow operating posi-
tions on a combustible floor, one of the following combustible
floor base accessories is required: 1FB1817, 1FB1821, or
1FB1824.
FILTER RACK ACCESSORY
1/2”
22”
C
19-7/8”
B
D
1-1/2”
3-1/2”
A
22”
21”
1/2”
(All four sides)
2” Max
Thick
Filter
3/4”
1/2”
3-1/2”
1/2”
7/8”
NOTE: May be used with up to a 2” filter.
Required for downflow application.
May also be used in upflow application.
Comes with 1” permanent filter.
All dimensions are inches. They are subject to change
without notice. Certified dimensions will be provided upon
request.
1”
A
16-1/2”
20”
23-1/2”
ACCESSORY FOOTPRINT
DIMENSIONS
Filter Rack Model
Used With
Rack Dimensions Inches Filter Dimensions Inches
Multi-PositionHorizontal Only ABCDWidthLengthThickness
1FR0817 1FR0717 MV12B 17-1/2 16-3/8 15-1/2 21 16 20 1
1FR0821 1FR0721 MV16C 21 19-7/8 19 21 20 20 1
1FR0824 1FR0724 MV12D, MV20D 24-1/2 23-3/8 22-1/2 21 24 20 1