Hazardous Locations; Installation; Leveling Legs (If Desired); Installation On A Concrete Slab - Carrier 58MVP Installation, Start-Up, And Operating Instructions Manual

Step 4—Hazardous Locations
When furnace is installed in a residential garage, it must be
installed so that burners and ignition sources are located a
minimum of 18 in. above floor. The furnace must be located
or protected to avoid physical damage by vehicles. When
furnace is installed in a public garage, airplane hangar, or
other building having a hazardous atmosphere, unit must be
installed in accordance with requirements of National Fire
Protection Association, Inc.

INSTALLATION

Step 1—Leveling Legs (If Desired)
When furnace is used in upflow position with side inlet(s), leveling
legs may be desired. (See Fig. 12.) Install field-supplied,
corrosion-resistant 5/16-in. machine bolts and nuts.
"
5
⁄
16
5
⁄
16
"
3
1 ⁄
4
"
5
⁄
16
"
3
1 ⁄
4
"
3
1 ⁄
4
Fig. 12—Leveling Legs
NOTE: The maximum length of bolt should not exceed 1-1/2 in.
1. Position furnace on its back. Locate and drill a 5/16-in.
diameter hole in each bottom corner of furnace. (See Fig. 12.)
Holes in bottom closure panel may be used as guide locations.
2. For each hole, install nut on bolt and then install bolt and nut
in hole. (Install flat washer if desired.)
A93044
"
"
3
1 ⁄
4
"
5
⁄
16
A89014
3. Install another nut on other side of furnace 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.
LEVEL (0")
FRONT
TO
" MAX
1
⁄
2
UPFLOW OR DOWNFLOW
NOTE: For proper furnace operation, install furnace so that it is
level or pitched forward within 1/2 in. to ensure proper condensate
drainage from secondary heat exchangers.
Step 2—Installation on a Concrete Slab
1. Construct hole in floor per dimensions in Fig. 13.
2. Place plenum and furnace as shown in Fig. 14.
Opening Dimensions (In.)
FURNACE
CASING WIDTH
17-1/2
21
24-1/2
* These dimensions apply when a model CB or CD Evaporator Coil casing is
to be installed.
Fig. 13—Floor Opening in Concrete Slab
13
FRONT
LEVEL (0")
TO
" MAX
1
⁄
2
HORIZONTAL
A
B
HOLE IN
FLOOR
B
A
Heat Only Heat/Cool*
16-7/16 19-5/8 19-7/16
19-7/8 19-5/8 19-7/16
23-7/16 19-5/8 19-7/16
A93025
A73382