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Bryant 345MAV User Manual

Page 16

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IV.

INSTALLATION IN HORIZONTAL APPLICATIONS

These furnaces can be installed horizontally in either horizontal
left or right discharge position. In a crawlspace, furnace can either
be hung from floor joist or installed on suitable blocks or pad.
Furnace can be suspended from each corner by hanger bolts and
angle iron supports. (See Fig. 19.) Cut hanger bolts (4 each 3/8-in.
all-thread rod) to desired length. Use 1 X 3/8-in. flat washers,
3/8-in. lockwashers, and 3/8-in. nuts on hanger rods as shown in
Fig. 19. Dimples are provided for hole locations. (See Fig. 2.)

CAUTION:

The entire length of furnace MUST be

supported when furnace is used in a horizontal position to
ensure proper draining.

Fig. 18—Furnace, Plenum, and Subbase Installed on a

Combustible Floor

A78651

DOWNFLOW

SUBBASE

SHEET METAL

PLENUM

FURNACE

(OR COIL CASING

WHEN USED)

Fig. 19—Crawlspace Horizontal Application

A96209

NOTES:

ANGLE
IRON OR
EQUIVALENT

(B)

(A) ROD LOCATION

USING DIMPLE
LOCATORS
(SEE DIMENSIONAL
DWG FOR
LOCATIONS)

13

/

16

-IN. MAX

ALTERNATE SUPPORT
LOCATION FROM BACK

ALTERNATE SUPPORT
LOCATION 4-IN. MIN
8-IN. MAX

A 3-IN. MINIMUM

CLEARANCE TO

COMBUSTION-AIR INTAKE

IS REQUIRED.

3

8

-IN. ROD

(A)

(B)

(A)

(B)

(B)

(A)

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.

3. Bottom side combustion-air entry cannot

be used when furnace is installed with
hangers as shown.

(A) PREFERRED ROD LOCATION

(B) ALTERNATE ROD LOCATION

DRAIN

5

3

4

3

/

8

-IN. HEX NUT

& WASHER (4)

REQD PER ROD

VENT

COMBUSTION-AIR

INTAKE

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