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19
Units With Factory--Installed
Non--Fused Disconnect or HACR —
The factory--installed optional non--fused disconnect (NFD)
or HACR switch is located in a weatherproof enclosure
located under the main control box. The manual switch
handle and shaft is 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. 16).
Connect field power supply conductors to LINE side
terminals when the switch enclosure cover is removed to
attach the handle.
To field install the NFD shaft and handle:
1. Remove the unit front panel (see Fig. 2).
2. Remove (3) hex screws on the NFD enclosure -- (2) on
the face of the cover and (1) on the left side cover.
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 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.
C12284
Fig. 22 -- Location of Non--Fused Disconnect Enclosure
C12279
Fig. 23 -- Handle and Shaft Assembly for NFD
To field install the HACR shaft and handle:
1. Remove the 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.
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
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.
C12285
Fig. 24 -- Location of HACR Enclosure
Summary of Contents for WeatherExpert 50LC
Page 4: ...4 a50 9584 Fig 2 Unit Dimensional Drawing ...
Page 5: ...5 a50 9585 Fig 2 Unit Dimensional Drawing cont ...
Page 14: ...14 a50 9586 Fig 17 50LC 07 Electro mechanical Control Wiring Diagram ...
Page 15: ...15 a50 9592 Fig 18 50LC 07 RTU Open Control Wiring Diagram ...
Page 16: ...16 a50 9587 Fig 19 50LC 07 SystemVut Control Wiring Diagram ...