Units Without Factory-Installed Non-Fused Disconnect; All Units; Convenience Outlets - Bryant Preferred Series Installation Instructions Manual

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
UNITS WITHOUT FACTORY-INSTALLED NON-FUSED
DISCONNECT
When installing units, provide a disconnect switch per NEC
(National 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 cabinet.

ALL UNITS

All 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. 22 and the unit label diagram for
power wiring connections to the unit power terminal blocks
and equipment ground. Maximum wire size is #2ga AWG
(copper only) per pole on contactors, #2ga AWG (copper only)
per pole on optional disconnect, and 4/0 AWG (copper only)
per pole on terminal or fuse block on units with single point
box. See Fig. 22 and unit label diagram for field power wiring
connections.
Provide a ground fault and short circuit over-current protection
device (fuse or breaker) per NEC Article 440 (or local codes).
Refer to unit informative data plate for MOCP (Maximum
Over-Current Protection) device size.
All field wiring must comply with the NEC and local
requirements.
All units except 208/230v units are factory wired for the volt-
age shown on the nameplate. If the 208/230v unit is to be con-
nected to a 208v power supply, the control transformer must be
rewired by removing the black wire with the
spade connector from the 230v connection and moving it to the
200v / -in. male terminal on the primary side of the transform-
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er. Refer to unit label diagram for additional information.
Field power wires will be connected at line-side pressure lugs
on the power terminal block or at factory-installed option non-
fused disconnect.
NOTE: Check all factory and field electrical connections for
tightness.

CONVENIENCE OUTLETS

ELECTRICAL OPERATION HAZARD
Failure to follow this warning could result in personal inju-
ry or death.
Units with convenience outlet circuits may use multiple
disconnects. Check convenience outlet for power status be-
fore opening unit for service. Locate its disconnect switch,
if appropriate, and open it. Lock-out and tag-out this
switch, if necessary.
Two types of convenience outlets are offered on 551J models:
non-powered and unit-powered. Both types provide a 125-volt
GFCI (ground-fault circuit interrupter) duplex receptacle rated
at 15A behind a hinged waterproof access cover, located on the
end panel of the unit. See Fig. 25.
NOTE: Unit powered convenience outlets are not available as fac-
tory installed options for single phase (-J voltage code) models.
16
/ -in. female
1
4
WARNING