Units Without Factory-Installed Non-Fused Disconnect Or Hacr; Convenience Outlets - Carrier WeatherExpert 48JC04 Installation Instructions Manual

Ultra high efficiency single package rooftop gas heating/electric cooling unit with puron (r-410a) refrigerant
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Fig. 30 — HACR Enclosure Location
Fig. 31 — HACR Handle and Shaft Assembly
UNITS WITHOUT FACTORY-INSTALLED NON-FUSED
DISCONNECT OR HACR
When installing units, provide a disconnect switch per NEC
(National Electrical Code) of adequate size. Disconnect sizing
data is provided 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. 27 and the unit label diagram for
power wiring connections to the unit power terminal blocks
and equipment ground. Maximum wire size is #2ga AWG
(copper only) per pole on contactors. See Fig. 27 and unit label
diagram for field power wiring connections.
Provide a ground fault and short circuit over-current protection
device (fuse or breaker) per NEC Article 440 (or local 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 protective
device unless required by local codes.
All field wiring must comply with the NEC and local
requirements.
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 transformer must be rewired
by moving the black wire with the
from the 230v connection and moving it to the 200v
terminal on the primary side of 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.

CONVENIENCE OUTLETS

ELECTRICAL OPERATION HAZARD
Failure to follow this warning could result in personal inju-
ry or death.
Units with convenience outlet circuits may use multiple
disconnects. Check convenience outlet for power status be-
fore 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 48JC models:
non-powered and unit-powered. Both types provide a 125-v
GFCI (ground-fault circuit interrupter) duplex receptacle rated
at 15A behind a hinged waterproof access cover, located on the
end panel of the unit. See Fig. 32.
Figure 33 shows the Convenience Outlet Utilization label
which is located below the convenience outlet.
CONVENIENCE
OUTLET GFCI
PWD-CO
TRANSFORMER
Fig. 32 — Convenience Outlet Location
Fig. 33 — Convenience Outlet Utilization
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 in-
stalled at unit installation. For shipment, the convenience outlet
is covered with a blank cover plate.
18
/
-in. female spade connector
1
4
WARNING
PWD-CO FUSE
SWITCH
Notice Label
1
/
-in. male
4

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