Nordyne E3 user service Connecting Supply Service Wires, Rear Wall Of Enclosure

REAR WALL OF ENCLOSURE

CENTER LINE

1 3/4" MIN
(45 mm)
18 5/8"			17 1/2"		Furnace
		(445 mm)			Outline
(474 mm)
				14"
23 3/4"				(356 mm)
(604 mm)
3 1/8"
(80 mm)				For Optional
				A/C Or H/P
3/4"	5 3/4"
(20 mm)				3"
	(147 mm)
Furnace				(73 mm)
			20"
Outer Door
			(508 mm)

Figure 19. Upflow Floor Cutout Locations (nominal dimensions)

•-010 model is factory-wired for single-branch supply circuit only.

•-012 models are factory-wired for single- branch supply circuit (single-circuit kit in- stalled). Dual-branch circuit can be used by removing factory-installed single-circuit kit (see Figures 20 and 21).

•-015, -017, -020 and -023 models are factory-wired for dual-branch supply circuit. Single-branch circuit can be used by installing optional single-circuit kit .

IMPORTANT:

Note: Circuit breakers installed within this unit are for short - circuit protection of the internal wiring and to serve as a disconnect. Circuit breakers installed within this unit DO NOT provide over-current protection of the supply wiring and therefore may be sized larger than the branch circuit protection.

Connecting Supply Service Wires

1.Remove right-hand control panel (when viewing in downfl ow position).

2.Locate power supply hole plugs in side of unit and in bottom of unit. Remove appropriate plug(s) or knockout opening applicable to recommended wire size(s).

3.Installlistedcableconnector(s)inopening(s). If metal-sheathed conduit is used for incom- ing power line(s), provide an approved metal clamp on conduit and secure it in entrance knockout.

4.Insert supply service wire(s) through cable connector(s) and connect wires to circuit breakers (Figures 20 and 21).

NOTE: To install single-circuit kit, perform step 5. If single-circuit kit installation is not necessary, go to step 6.

5.To install single-circuit kit:

a.Loosen lugs at supply side of circuit breakers.

b.Remove cover from single-circuit kit (if supplied).

c.Insert metal buss bars of kit into lugs of circuit breaker.

d.Tighten lugs securely (45 in.-lbs.recom- mended).

18