Units Without Factory-Installed Non-Fused Disconnect; All Units; Convenience Outlets - Carrier 50KC04 Installation Instructions Manual

Fig. 23 — Location of Non-Fused Disconnect
Enclosure
To field install the NFD shaft and handle:
1. Remove the unit front panel (see Fig. 2 and 3).
2. Remove (3) hex screws on the NFD enclosure — (2) on the
face of the cover and (1) on the left side cover.
3. Remove the front cover of the NFD enclosure.
4. Make sure the NFD shipped from the factory is at OFF posi-
tion (the arrow on the black handle knob is at OFF).
5. Insert the shaft with the cross pin on the top of the shaft in the
horizontal position.
6. Measure from the tip of the shaft to the top surface of the
black pointer; the measurement should be 3.75 to 3.88 in. (95
to 99 mm).
7. Tighten the locking screw to secure the shaft to the NFD.
8. Turn the handle to the OFF position with red arrow pointing
at OFF.
9. Install the handle on to the painted cover horizontally with the
red arrow pointing to the left.
10. Secure the handle to the painted cover with (2) screws and
lock washers supplied.
11. Engaging the shaft into the handle socket, re-install (3) hex
screws on the NFD enclosure.
12. Re-install the unit front panel.
Fig. 24 — Handle and Shaft Assembly for NFD
UNITS WITHOUT FACTORY-INSTALLED NON-FUSED
DISCONNECT
When installing units, provide a disconnect switch per NEC (Na-
tional Electrical Code) of adequate size. Disconnect sizing data is
provided on the unit informative plate. Locate disconnect sizing
data on unit cabinet or within sight of the unit per national or local
codes. Do not cover unit informative plate if mounting the discon-
nect 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 infor-
mative plate. See Fig. 21 and the unit label diagram for power wir-
ing connections to the unit power terminal blocks and equipment
ground. Maximum wire size is #2 ga AWG (copper only) per pole
on contactors.
Provide a ground-fault and short-circuit over-current protection
device (fuse or breaker) per NEC Article 440 (or local codes). Re-
fer to unit informative data plate for MOCP (Maximum Over-cur-
rent Protection) device size.
All field wiring must comply with NEC and local requirements.
All units except 208/230-v units are factory wired for the voltage
shown on the nameplate. If the 208/230-v unit is to be connected
to a 208-v power supply, the control transformer must be rewired
by moving the black wire with the
from the 230-v connection and moving it to the 200-v
terminal on the primary side of the transformer. Refer to unit label
diagram for additional information. Field power wires will be con-
nected 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.

CONVENIENCE OUTLETS

ELECTRICAL OPERATION HAZARD
Failure to follow this warning could result in personal injury or
death.
Units with convenience outlet circuits may use multiple
disconnects. Check convenience outlet for power status 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 50KC models:
Non-powered and unit-powered. Both types provide a 125-volt
GFCI (ground-fault circuit-interrupter) duplex receptacle rated at
15-A behind a hinged waterproof access cover, located on the end
panel of the unit. See Fig. 25.
NOTE: Unit powered convenience outlets are not available as fac-
tory installed options for size 04-06 single phase (-3 voltage code)
models.
16
/ -in. female spade connector
1
4
/
1
4
WARNING
-in. male