Carrier 58PAV - Manual (Page 5)

FILTER
RETAINER
SPRING
A93045
Fig. 4—Side Filter Arrangement
A bottom closure panel is factory installed in the bottom of the
furnace. When bottom return inlet is desired, remove and discard
the enclosure panel.
Filter retaining brackets, supports, and retainers are factory as­
sembled and shipped installed for side return application, with 1
set of all required hardware provided. (See Fig. 4.) For bottom
return applications, remove the brackets (front and back) and
supports from each side. The back bracket(s) are installed in the
rear of the furnace casing (dimples ate provided to mark mounting
screw locations).
The front bracket(s) are installed on the bottom front plate as
shown in Fig. 5, once the bottom enclosure has been removed.
Rotate filter supports 180° so filter rests on support and reinstall.
(Do not reinstall in 17-1/2 in. casing.) Install the filter retaining rod
(small U-shaped end) in the rear bracket, and the front of the filter
retainer rod as shown in Fig. 5. Two sets of hardware are needed
for furnaces in 24-1/2 in. casings using 1 filter for bottom return.
All hardware is provided for filter installation.
A WARNING
Never operate unit without a filter or with filter access door
removed. Failure to follow this warning can cause fire,
personal injury, or death.
Table 3—Filter Information (In.)
FURNACE FILTER SIZE* FILTER
CASING WIDTH Side Return Bottom Return TYPE
14-3/16 (1) 16 X 25 X 1t (1) 1 6 X 2 5 X 1 Cleanable
17-1/2 (1) 16 X 25 X 1t (1) 1 6 X 2 5 X 1 Cleanable
21 (1) 1 6 X 2 5 X 1 ( 1 ) 2 0 X 2 5 X 1 tCleanable
24-1/2 (2) 16 X 25 X 1t (1) 30 X 25 X 1 Cleanable
* Filter can be field modified by cutting to the desired size. Alternate sizes can
be ordered from your distributor or dealer.
tFactory provided with the furnace.
Step 4—Leveling Legs (If Required)
When the furnace is used with side inlet(s) and leveling legs are
required, refer to Fig. 6 and install field-supplied, corrosion-
resistant 5/16-in. machine bolts and nuts.
NOTE: The maximum length of the bolt should not exceed 1-1/2
in.
1. Lay furnace on its back. Locate and drill 5/16-in. diameter
hole in each bottom comer of furnace as shown in Fig. 6.
2. Install nut on bolt and install bolt and nut in hole. (Install flat
washer if desired.)
3. Install another nut on other side of furnace base. (Install flat
washer if desired.)
A89014
Fig. 6—Leveling Leg Installation