Carrier 58ZAV ÐHorizontal Crawlspace Installation, ÐFilter Arrangement, ÐGas Piping

ANGLE

IRON OR

EQUIVALENT

	(B)
	(A)
(B)
(A) ROD LOCATION
USING DIMPLE	(A)
LOCATORS
	3/8-IN. HEX NUT
(SEE DIMENSIONAL
DWG FOR	& WASHER (4)
LOCATIONS)	REQD PER ROD

3⁄8-IN. ROD

(A)

(B)

(B)

(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.

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Fig. 10ÐHorizontal Crawlspace Installation on Hanger Rods

INSTALL FURNACE

1.Position furnace in desired location.

2.Connect gas supply pipe. See Fig. 8 for typical piping entry.

3.Install field-supplied filter retainers as indicated in Fig. 11 and Table 4 before connecting return-air duct to furnace.

4.Connect supply- and return-air ducts.

5.Install 24- X 24-in. sheet metal shield on platform in front of louvered control panel as shown in Fig. 8.

Step 7ÐHorizontal Crawlspace Installation

The furnace can be installed horizontally with either the LH or RH side up. In a crawlspace, furnace can either be hung from floor joist (see Fig. 10) or installed on suitable blocks or pad. (See Fig. 9.) The furnace can be suspended from each corner by hanger bolts (4 each 3/8-in. all-thread rod) cut to desired length, 1- X 3/8-in. flat washer, 3/8-in. lockwasher, and 3/8-in. nut. Dimples are provided for hole locations. (See Fig. 1.)

Since horizontal crawlspace installation is very similar to attic installation, refer to Step 6. The installation of a sheet metal shield in front of louvered control panel is covered in Step 6. For a crawlspace installation, this same sheet metal shield must be installed above louvered control panel. Extend sheet metal shield over furnace top far enough to cover gas pipe entry hole.

Step 8ÐFilter Arrangement

Never operate unit without a filter or with filter access door removed. Failure to follow this warning could result in fire, personal injury, or death.

The 2 factory-supplied filters are shipped in the blower compart- ment. After return-air duct has been connected to furnace, install filters in a V-formation inside return-air plenum. See Fig. 11 and Table 4 for horizontal applications. Horizontal filter retainers must be field supplied. See Fig. 12 for downflow applications.

Step 9ÐGas Piping

Gas piping must be installed in accordance with national and local codes. Refer to the current edition of the NFGC.

Canadian installations must be installed in accordance with NSC- NGPIC and all authorities having jurisdiction.

Refer to Table 5 for recommended gas pipe sizing. Risers should be used to connect to the furnace and to the meter.

If a flexible connector is required or allowed by the authority having jurisdiction, black iron pipe shall be installed at the gas valve and extend a minimum of 2 in. outside the furnace casing.

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