19
Units Without Factory--Installed
Non--Fused Disconnect —
When installing units, provide a disconnect switch of
adequate size per NEC (National Electrical Code).
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.
Units with Factory--Installed Non--Fused Disconnect —
The factory--installed option disconnect switch is located
in a weatherproof enclosure located under the main
control box. The manual switch handle is accessible
through an opening in the access panel. Discard the
factory test leads (see Fig. 25). The factory disconnect is
an 80A disconnect.
C12324
Fig. 28 -- Location of Non--Fused Disconnect Enclosure
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 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
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.
C12325
Fig. 29 -- Handle and Shaft Assembly for NFD
Convenience Outlets —
ELECTRICAL OPERATION HAZARD
Failure to follow this warning could result in personal
injury or death.
Units with convenience outlet circuits may use
multiple disconnects. Check convenience outlet for
power status before opening unit for service. Locate
its disconnect switch, if appropriate, and open it.
Tag--out this switch, if necessary.
!
WARNING
Two types of convenience outlets are offered as
factory--installed options on 548J units: Non--powered and
unit--powered. Both types provide a 125--volt GFCI
(ground--fault circuit--interrupter) duplex receptacle rated
at 15--A behind a hinged waterproof access cover, located
on the end panel of the unit. See Fig. 30.
A 20 amp non--powered convenience outlet is available as
a field--installed accessory.
Non--powered type:
This type requires the field installation
of a general--purpose 125--volt 15--A circuit powered from a
source elsewhere in the building. Observe national and local
codes when selecting wire size and conduit requirements,
fuse or breaker requirements and disconnect switch size and
location. Route 125--v power supply conductors into the
bottom of the utility box containing the duplex receptacle.
Содержание 548J*14D Series
Страница 5: ...5 a548J 011 Fig 2 Unit Dimensional Drawing Size 14 Unit...
Страница 6: ...6 a548J 012 Fig 2 Unit Dimensional Drawing Size 14 Unit cont...
Страница 10: ...10 a548J 013 Fig 6 Roof Curb Details...
Страница 17: ...17 a50 9707 Fig 26 Typical 548J Size 14 Control Wiring Diagram...
Страница 43: ...43 a50 9711 Fig 49 RTU Open Controller System Wiring Diagram...
