Units With Factory-Installed Non-Fused Dis- Connect Or Hacr - Carrier WeatherExpert Puron 50LC 08 Series Installation Instructions Manual

UNITS WITH FACTORY-INSTALLED NON-FUSED DIS-
CONNECT OR HACR
The factory-installed option disconnect switch is located in a
weatherproof enclosure located under the main control box (see
Fig. 34 and Fig. 36). The manual switch handle is shipped in the
disconnect or HACR enclosure. Assemble the shaft and handle to
the switch or HACR at this point. Discard the factory test leads
(see Fig. 32). The factory disconnect is a 200A disconnect on
2303-60 units and a 100A disconnect on 460-3-60 and 575-3-60
units. On units with factory-installed non-fused disconnect, with-
out factory-installed electric heat, the factory supplied load side
wires may be of insufficient size for accessory electric heat appli-
cations. If so, remove the load side factory wiring. Re-size wires
per unit nameplate data provided with accessory electric heat.
To field install the NFD shaft and handle (see Fig. 35)
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 bottom.
3. Remove the front cover of the NFD enclosure.
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.
6. Measure the tip of the shaft to the top surface of the
pointer to be 3.75 to 3.88 in. (95 to 99 mm) for 80A and
100A NFD and 3.43 to 3.56 in. (87 to 90 mm) for 200A
NFD.
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.
Fig. 34 — Location of Non-Fused Disconnect (NFD)
Enclosure
Fig. 35 — Handle and Shaft Assembly for NFD
To field install the HACR shaft and handle (see Fig. 37)
1. Remove the 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 bottom.
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.
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.
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