Carrier 58MXA Installation, Start-Up, And Operating Instructions Manual page 15

4 If downflow subbase (KGASB) is use& install as shown in
Fig. 19
If (?oil Assembly Part No, (D5 or CK5 or (?oil Box Part No,
K(AK( is use& install as shown in Fig 20_
18-IN. MINIMUM
TO BURNERS
Fig. 16--Installation in a Garage
A93044
A89014
Fig. 17--Leveling Legs
2_ For each hole. install nut on bolt and then install bolt and nut
in hole_ (Install flat washer if desired.)
3_ Install another nut on other side of fi/rnace base. (Install flat
washer if desired.)
4. Adjust outside nut to provide desired height, and tighten inside
nut to secure arrangement.
NOTE: Bottom closure must be used when leveling legs are used.
See Bottom Closure Panel section.
Step 2--Installation in Upflow and Downflow
Applications
NOTE: For downt'tow applications_ this fllmace is approved for
use on combustible flooring when special base (available from
manu_acmrer) Part No. KGASB0201ALL is used. Special base is
not required when this :[ilmace is installed on manu_hcmrer's (?oil
Assembly Part No. CD5 or CK5, or (?oil Box Part No. KCAKC is
used.
1. Detemaine application being installed t'rom Table 1.
2. Construct hole in floor per dimensions specified in Table 1
and Fig. 18.
3. (onstruct plenum to dimensions specified in Table 1 and Fig.
18.
15
A96283
Fig. 18--Floor and Plenum Opening Dimensions
FURNACE
(OR COIL CASING
WHEN USED)
COMBUSTIBLE
FLOORING "_
DOWNFLOW
SUBBASE
SHEET METAL
PLENUM
-- FLOOR --
OPENING
A96285
Fig. 1g--Furnace, Plenum, and Subbase Installed
on a Combustib{e Floor
NOTE: Remove furnace per_brated, discharge duct flanges when
they inter['_re with mating flanges on coil on downflow subbase.
To remove fl/mace perforate& discharge duct flange, use wide
duct pliers or duct flange tool or hand seamers to bend flange back
and forth until it breaks off. Be carefl/t of sharp edges. (See Fig.
21)