Units With Factory-Installed Non-Fused Disconnect Or Hacr - Carrier WeatherMaster 48HC Series Installation Instructions Manual

FIRE HAZARD
Failure to follow this warning could result in personal injury,
death, or property damage.
Do not connect aluminum wire between disconnect switch and
unit. Use only copper wire.
Units Without Disconnect or HACR Option
Equip
C GR Lug
11 23
Disconnect
per
NEC
208/230-1-60 Ground
(GR)
Units With Disconnect or HACR Option
L1
L2
3 Phase Only
L3
Ground
(GR)
Disconnect factory test leads; discard.
Fig. 31 — Power Wiring Connections
ELECTRIC
DISCONNECT
SWITCH
Fig. 32 — Disconnect Switch and Unit
UNITS WITH FACTORY-INSTALLED NON-FUSED DIS-
CONNECT OR HACR
The factory-installed option non-fused disconnect (NFD) or
HACR switch is located in a weatherproof enclosure located un-
der the main control box. The manual switch handle and shaft are
shipped in the disconnect or HACR enclosure. Assemble the shaft
and handle to the switch at this point. Discard the factory test leads
(see Fig. 31).
Connect field power supply conductors to LINE side terminals
when the switch enclosure cover is removed to attach the handle.
Field-Install the NFD Shaft and Handle
1. Remove 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. See
Fig. 33.
3. Remove the front cover of the NFD enclosure.
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WARNING
1-ph Belt Drive IFM
Direct Drive IFM
C IFC or
Equip
11 13 13 23 TB
GR Lug
Disconnect
per
NEC
L1 L2 L3 Ground
(GR)
208/230-3-60
460-3-60
575-3-60
2 1
Optional
Disconnect
4 3
Switch 3 Phase Only
6 5
Equip GR Lug
COPPER
WIRE ONLY
ALUMINUM
WIRE
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4. Make sure the NFD shipped from the factory is at OFF
position (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. See Fig. 34.
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 point-
ing 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.
Factory
Wiring
Fig. 33 — NFD Enclosure Location
Fig. 34 — NFD Handle and Shaft Assembly
Field-Install the HACR Shaft and Handle
1. Remove unit front panel (see Fig. 2 and 3).
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. 35.
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. 36.
20