58SP0A/58SP1A: Installation, Start–Up, Operating and Service and Maintenance Instructions
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
11
A10131
Fig. 15 – Horizontal Suspension with Straps
Roll-Out Protection
Provide a minimum 17-3/4-in. X 22-in. (451 X 559 mm) piece of sheet
metal for flame roll-out protection in front of burner area for furnaces
closer than 12-in. (305 mm) above the combustible deck or suspended
furnaces closer than 12-in. (305 mm) to joists. The sheet metal
MUST
extend underneath the furnace casing by 1-in. (25 mm) with the door
removed.
The bottom closure panel on furnaces of widths 17-1/2-in. (445 mm) and
larger may be used for flame roll-out protection when bottom of furnace
is used for return air connection. See
roll-out shield.
Bottom Return Air Inlet
These furnaces are shipped with bottom closure panel installed in bottom
return-air opening. Remove and discard this panel when bottom return
air is used. To remove bottom closure panel, perform the following:
1. Tilt or raise furnace and remove two screws holding bottom filler
2. Rotate bottom filler panel downward to release holding tabs.
3. Remove bottom closure panel.
4. Reinstall bottom filler panel and screws.
Side Return Air Inlet
These furnaces are shipped with bottom closure panel installed in bottom
return-air opening. This panel
MUST
be in place when side return air
inlet(s) are used without a bottom return air inlet.
Not all horizontal furnaces are approved for side return air connections,
.
Table 3 – Opening Dimensions - In. (mm)
FURNACE
CASING
WIDTH
APPLICATION
PLENUM OPENING
FLOOR OPENING
A
B
C
D
14–3/16
(360)
Upflow Applications on Combustible or Noncombustible Flooring
(subbase not required)
12-11/16
(322)
21-5/8
(549)
13-5/16
(338)
22-1/4
(565)
Downflow Applications on Noncombustible Flooring
(subbase not required)
12-9/16
(319)
19
(483)
13-3/16
(335)
19-5/8
(498)
Downflow Applications on Combustible Flooring
(subbase required)
11-13/16
(284)
19
(483)
13-7/16
(341)
20-5/8
(600)
Downflow Applications on Combustible Flooring with Cased Coil
(subbase not required)
12-5/16
(319)
19
(483)
13-5/16
(338)
20
(508)
17–1/2
(445)
Upflow Applications on Combustible or Noncombustible Flooring
(subbase not required)
16
(406)
21-5/8
(549)
16-5/8
(422)
22-1/4
(565)
Downflow Applications on Noncombustible Flooring
(subbase not required)
15-7/8
(403)
19
(483)
16-1/2
(419)
19-5/8
(498)
Downflow Applications on Combustible Flooring
(subbase required)
15-1/8
(384)
19
(483)
16-3/4
(425)
20-5/8
(600)
Downflow Applications on Combustible Flooring with Cased Coil
(subbase not required)
15-1/2
(394)
19
(483)
16-1/2
(419)
20
(508)
21
(533)
Upflow Applications on Combustible or Noncombustible Flooring
(subbase not required)
19-1/2
(495)
21-5/8
(549)
20-1/8
(511)
22-1/4
(565)
Downflow Applications on Noncombustible Flooring
(subbase not required)
19-3/8
(492)
19
(483)
20
(508)
19-5/8
(498)
Downflow Applications on Combustible Flooring
(subbase required)
18-5/8
(473)
19
(483)
20-1/4
(514)
20-5/8
(600)
Downflow Applications on Combustible Flooring with Cased Coil
(subbase not required)
19
(483)
19
(483)
20
(508)
20
(508)
24-1/2
(622)
Upflow Applications on Combustible or Noncombustible Flooring
(subbase not required)
23
(584)
21-1/8
(537)
23-5/8
(600)
22-1/4
(565)
Downflow Applications on Noncombustible Flooring
(subbase not required)
22-7/8
(581)
19
(483)
23-1/2
(597)
19-5/8
(498)
Downflow Applications on Combustible Flooring
(subbase required)
22-1/8
(562)
19
(483)
23-3/4
(603)
20-5/8
(600)
Downflow Applications on Combustible Flooring with Cased Coil
(subbase not required)
22-1/2
(572)
19
(483)
23-1/2
(597)
20
(508)
METHOD 2
USE (4) #8 x 3/4 (19 mm) SHEET
METAL SCREWS FOR EACH
STRAP. THE STRAPS
SHOULD BE VERTICAL
AGAINST THE FURNACE
SIDES AND NOT PULL AWAY
FROM THE FURNACE
SIDES.
METHOD 1
FOLD ALL STRAPS UNDER
FURNACE AND SECURE WTH
(4) #8 x 3/4 (19 mm) SHEET METAL SCREWS
(2 SCREWS IN SIDE AND 2 SCREWS
IN BOTTOM).