Nordyne E3 user service Unit Checkout, Codes, Specifications, And Requirements, Furnace Codes

Power entrance for all models may be through the right side or through the bottom of the unit (when viewing the unit in a downfl ow position).

UNIT CHECKOUT

Before installing this furnace:

1.Inspect unit for possible shipping damage. If shipping damage is found, fi le claim with transportation company.

2.Record furnace model number and serial number (see furnace data label) for future reference.

3.Carefully read all instructions supplied with optional equipment to be installed with furnace.

CODES, SPECIFICATIONS, AND REQUIREMENTS

Furnace Codes

Installation and wiring of this furnace, as well as the design and construction of the home duct system, must be in accordance with one or more of the following codes:

•HUDMANUFACTUREDHOMECONSTRUC- TION AND SAFETY STANDARD (Title 24, Part 3280)

•AmericanNationalStandards(ANSI)A119.11, C1-NFPA 7 (National Electrical Code)

•CANADIAN STANDARDS (C.S.A.) Z240.6.1, and Z240.9.1.

All local codes having jurisdiction shall also apply.

Air Duct Codes and Specifications

Air ducts must be installed in accordance with National Fire Protection Association standards NFPA 90A and NFPA 90B, these instructions, and all applicable local codes.

•Materials: Air ducts must be aluminum, tin plate, galvanized sheet steel, or other approved materials for outlet or return air ducts.

•Construction: Snap-Lock or Pittsburgh-Lock seams are preferred. All other types of seams must be made tight to prevent leakage.

•Sizing: Supply duct system must be designed for proper air distribution. Static pressure measured externally to furnace shall not ex- ceed static pressure rating listed on furnace nameplate.

•Location of Openings: Duct system must be designed so that no supply registers are lo- cated in duct system directly below furnace.

Listing agency(s)	May vary by model, check the unit data label for
	applicable agency listing mark.
	Approved for: single/multistory residential or mobile/
Approved Installation Configurations	modular/manufactured structures. Upflow, downflow,
	(freestanding/closet/alcove)
Accessibility for Servicing	Minimum of 18"(46cm) required in front of unit.
	0" from all surfaces of furnace cabinet, ducts, optional
Minimum Clearance to	coil housing and plenum connector. No separate
Combustibles	subbase required for installations on combustible
	flooring.
	200 in (1290 cm ) heating only*
	235 in (1516 cm ) A/C or H/P up to 4 ton installed
Minimum return air opening	250 in (1613 cm ) A/C or H/P up to 4 ton w/1" clearanced
	installed
required (total free area)
	390 in (2516 cm ) A/C or H/P up to 5 ton installed
	*or return air grille and frame assembly p/n 902989 or
	wall mount grille p/n 902999
	Use return air grille and frame assembly P/N 902989 or
	equivalent for alcove installation.
Return air grille (closet or alcove	Use wall mount return air grilled P/N 902999 or
installation)	equivalent for closet installation.
	155 in (1000 cm ) must be added for 5 ton A/C or H/P
	system.

Table 1. Miscellaneous Listings & Installation Requirements

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