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

Single package rooftop gas heating/electric cooling unit with puron (r-410a) refrigerant
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Field-Install the NFD Shaft and Handle
1.
Remove 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. See
Fig. 33.
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. See Fig. 34.
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 point-
ing 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. 33 — NFD Enclosure Location
Fig. 34 — 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. 31 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. See Fig. 31 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 voltage
shown on the nameplate. If the 208/230v unit is to be connected
to a 208v power supply, the control transformer must be rewired
by moving the black wire with the
from the 230v connection and moving it to the 200v
terminal on the primary side of the transformer. Refer to unit la-
bel 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 581J models:
non-powered and unit-powered. Both types provide a 125-v
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. 35.
CONVENIENCE
OUTLET GFCI
Fig. 35 — Convenience Outlet Location
20
/
-in. female spade connector
1
4
1
/
4
WARNING
PWD-CO TRANSFORMER
PWD-CO FUSE
SWITCH
CONTROL BOX
ACCESS PANEL
-in. male

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