Carrier WeatherMaster 50HC Series Installation Instructions Manual page 16

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. 23.
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. See Fig. 24.
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. 23 — NFD Enclosure Location
Fig. 24 — 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. 25.
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. 26.
6. Tighten the locking screw to secure the shaft to the HACR.
7. Turn the handle to the OFF position with red arrow pointing
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. 25 — HACR Enclosure Location
Fig. 26 — HACR Handle and Shaft Assembly
16