Connecting Supply Service Wires - Nordyne E3 Series Owner's Manual And Installation Instructions

E3 series air conditioner/heat pump air handler
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1 3/4" MIN
(45 mm)
23 3/4"
(604 mm)
3 1/8"
(80 mm)
(20 mm)
Outer Door
Figure 19. Upfl ow 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
t h i s u n i t a r e f o r s h o r t - c i r c u i t
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.
18
REAR WALL OF ENCLOSURE
CENTER LINE
17 1/2"
18 5/8"
(445 mm)
(474 mm)
3/4"
5 3/4"
(147 mm)
Furnace
Furnace
Outline
14"
(356 mm)
For Optional
A/C Or H/P
3"
(73 mm)
20"
(508 mm)

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.
Install listed cable connector(s) in opening(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).

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