Carrier WeatherMaker 48TC A/B07 Series, Руководство по установке

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Fig. 54 — Location of Non-Fused Disconnect
Enclosure (Size 16)
To field install the NFD shaft and handle (see Fig. 55 or 56):
1. Remove the unit front panel (see Fig. 2-9).
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. For sizes 07 to 14, measure from the tip of the shaft to the
top surface of the black pointer; the measurement should
be 3.75-in. to 3.88-in. (95mm to 99mm). For size 16, mea -
sure the tip of the shaft to the top surface of the pointer to
be 3.75-in. to 3.88-in. (95mm to 99mm) for 80A and
100A NFD and 3.43-in. to 3.56-in. (87mm to 90mm) 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 to 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. 55 — Handle and Shaft Assembly for NFD
(Sizes 07-14)
Fig. 56 — Handle and Shaft Assembly for NFD
(Size 16)
UNITS WITHOUT FACTORY-INSTALLED NON-FUSED
DISCONNECT
When installing units, provide a disconnect switch per NEC (Na
-
tional Electrical Code) of adequate size. 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 cabi -
net.
ALL UNITS
Field wiring must comply with NEC and all local codes. Size wire
based on MCA (Minimum Circuit Amps) on the unit informative
plate. See Fig. 46 and 47 and the unit label diagram for power wir -
ing connections to the unit power terminal blocks and equipment
ground. Maximum wire size is #2 ga AWG per pole.
Provide a ground-fault and short-circuit over-current protection
device (fuse or breaker) per NEC Article 440 (or local codes). Re -
fer to unit informative data plate for MOCP (Maximum Over-cur -
rent Protection) device size.
All units except 208/230-v units are factory wired for the voltage
shown on the nameplate. If the 208/230-v unit is to be connected
to a 208-v power supply, the control transformer must be rewired
by moving the black wire with the
1
/
4
-in. female spade connector