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CAUTION
Failure to follow this caution could result in fire, intermit-
tent operation, or unsatisfactory performance.
Do not connect aluminum wire between disconnect
switch and air conditioning unit. Use only copper wire.
See Fig. 25.
ELECTRIC
DISCONNECT
SWITCH
Fig. 25 — Disconnect Switch and Unit
UNITS WITHOUT FACTORY-INSTALLED NON-
FUSED DISCONNECT OR HACR — When
units, provide a disconnect switch per NEC (National Elec-
trical Code) of adequate size. Disconnect sizing data is pro-
vided on the unit informative plate. Locate on unit cabinet
or within sight of the unit per national or local codes. Do not
cover unit informative plate if mounting the disconnect on
the unit cabinet.
ALL UNITS — All field wiring must comply with NEC
and all local codes. Size wire based on MCA (Minimum
Circuit Amps) on the unit informative plate. See Fig. 24 and
the unit label diagram for power wiring connections to the
unit power terminal blocks and equipment ground. Maxi-
mum wire size is #2ga AWG (copper only) per pole on con-
tactors. See Fig. 24 and unit label diagram for field power
wiring connections.
Provide a ground fault and short circuit over-current pro-
tection device (fuse or breaker) per NEC Article 440 (or lo-
cal codes). Refer to unit informative data plate for MOCP
(Maximum Over-Current Protection) device size.
NOTE: Units ordered with factory installed HACR do not need
an additional ground fault and short circuit over-current protec-
tive device unless required by local codes.
All field wiring must comply with the NEC and local re-
quirements.
All units except 208/230v units are factory wired for the
voltage shown on the nameplate. If the 208/230v unit is to
be connected to a 208v power supply, the control transform-
er must be rewired by moving the black wire with the
female spade connector from the 230v connection and mov-
ing it to the 200v
1
/
-in. male terminal on the primary side of
4
the transformer. Refer to unit label diagram for additional
information. Field power wires will be connected at line-
side pressure lugs on the power terminal block or at factory-
installed option non-fused disconnect.
NOTE: Check all factory and field electrical connections for
tightness.
COPPER
WIRE ONLY
ALUMINUM
WIRE
installing
1
CONVENIENCE OUTLETS
Failure to follow this warning could result in personal injury
or death.
Units with convenience outlet circuits may use multi-
ple disconnects. Check convenience outlet for power sta-
tus before opening unit for service. Locate its disconnect
switch, if appropriate, and open it. Lock-out and tag-out
this switch, if necessary.
Two types of convenience outlets are offered on 581J
models: non-powered and unit-powered. Both types provide
a 125-volt GFCI (ground-fault circuit interrupter) duplex re-
ceptacle rated at 15A behind a hinged waterproof access
cover, located on the end panel of the unit. See Fig. 26.
NOTE: Unit powered convenience outlets are not available as
factory installed options for single phase (-J voltage code)
models.
CONVENIENCE
OUTLET GFCI
Fig. 26 — Convenience Outlet Location
Installing Weatherproof Cover — A weatherproof while-in-
use cover for the factory-installed convenience outlets is now
required by UL standards. This cover cannot be factory-
mounted due its depth; it must be installed at unit installation.
For shipment, the convenience outlet is covered with a blank
cover plate.
The weatherproof cover kit is shipped in the unit's con-
trol box. The kit includes the hinged cover, a backing plate,
and gasket.
/
-in.
4
Failure to follow this warning could result in personal injury
or death.
Disconnect all power to unit and convenience outlet.
Lock-out and tag-out all power.
1.
Remove the blank cover plate at the convenience out-
let; discard the blank cover.
2.
Loosen the two screws at the GFCI duplex outlet, until
approximately
exposed. Press the gasket over the screw heads.
16
WARNING
PWD-CO TRANSFORMER
PWD-CO FUSE
SWITCH
CONTROL BOX
ACCESS PANEL
WARNING
1/
in. (13 mm) under screw heads is
2
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