Filter Arrangement - Carrier 58MXA Installation, Start-Up, And Operating Instructions Manual

ANGLE
IRON OR
EQUIVALENT
3/8-1N.ROD
ALTERNATE SUPPORT
LOCATION 4-IN. MIN
8-IN. MAX
(B)
(A) ROD LOCATION
USING DIMPLE
LOCATORS
(SEE DIMENSIONAL
DWG FOR
LOCATIONS)
3/8-1N. HEX
& WASHER (4)
REQD PER ROD
(B) ALTERNATE SUPPORT
LOCATION FROM BACK
(A) PREFERRED ROD LOCATION
(B) ALTERNATE ROD LOCATION
NOTES: 1. A 1 In. clearance minimum between top of
furnace and combustible material.
2. The entire length of furnace must be
supported when furnace is used in horizontal
position to ensure proper drainage.
Fig. 22--Crawlspace Horizonta{ ApNication
A93304
Step 5--Filter Arrangement
FIRE, CARBON MONOXIDE AND POISONING
HAZARD
Failure to %llow this warning co_dd result in fire_ personal
injur?% or death
Never operate fi/rnace without a filter or with filter access
door removed.
The air filter an'angement will va N" due to application, furnace
orientation, and filter type. The filter may be installed in an
external Filter/Media cabinet (if provided) or the t'umace blower
compartment. Facto_ supplied washable filters are shipped in the
blower compartment.
If a factoryosupplied external Filter Media cabinet is provided,
instructions for its application, assembly, and installation are
packaged with the cabinet. The Filter/Media cabinet can be used
with the fitctoryosupplied washable filter or a factor'-specified
highoefficiency disposable filter (see cabinet instructions)
If installing the filter in the t_urnace blower compartment, deter-
mine location %r filter and relocate filter retaining wire, if
necessary. See Table 2 to determine correct filter size for desired
filter location. Table 2 indicates filter size, location, and quantity
shipped with this filrnace. See Fig. 2 %r location and size of
bottom and side returnoair openings.
18
(IT HAZARD
Failure to %llow this caution may result in minor personal
ir!iury
Use care when cutting support rods in filters to protect against
flying pieces and sharp rod ends. Wear safety glasses, gloves,
and appropriate protective clothing.
[TNIT MAY NOT OPERATE
Failure to fc4tow this caution may result in intem_ittent unit
operation.
For airflow requirements above 1800 CFM, see Air Deliver-
table in Prodnct Data literature %r specific use of single side
inlets The use of both side inlets, a combination of 1 side and
the bottom, or the bottom only will ensure adequate return air
openings for airflow requirements above 1800 CFM.
NOTE: Side remrnoair openings can ONLY be used in UPFLOW
configurations. Install filter(s) as shown in Fig 23 Bottom
return-air opening may be used with all 4 orientations. Filter may
need to be cut to fit some furnace widths. Install filter as shown in
Fig. 24.
NOTE: Remove and discard bottom closure panel when bottom
inlet is used.