Units Without Factory-Installed Non-Fused Disconnect Or Hacr; All Units - Carrier WeatherMaster 48HC04 Series Installation Instructions Manual

Fig. 29 — NFD Handle and Shaft Assembly
Field-Install the HACR Shaft and Handle
1. Remove unit front panel (see Fig. 2).
2. Remove (3) hex screws on the HACR enclosure - (2) on
the face of the cover and (1) on the left side cover. See
Fig. 30.
3. Remove the front cover of the HACR enclosure.
4. Make sure the HACR shipped from the factory is at OFF
position (the white arrow pointing at OFF).
5. Insert the shaft all the way with the cross pin on the top of
the shaft in the horizontal position. See Fig. 31.
6. Tighten the locking screw to secure the shaft to the HACR.
7. Turn the handle to the OFF position with red arrow point-
ing at OFF.
8. Install the handle on to the painted cover horizontally with
the red arrow pointing to the left.
9. Secure the handle to the painted cover with (2) screws and
lock washers supplied.
10. Engaging the shaft into the handle socket, re-install (3)
hex screws on the HACR enclosure.
11. Re-install the unit front panel.
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. 26 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. 26 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 require-
ments.
All units except 208/230v units are factory wired for the volt-
age shown on the nameplate. If the 208/230v unit is to be con-
nected to a 208v power supply, the control transformer must be
rewired by moving the black wire with the
connector from the 230v connection and moving it to the 200v
1 / -in. male terminal on the primary side of the transformer.
4
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.
17
1 / -in. female spade
4