Units Without Factory- - Installed; Non- - Fused Disconnect; Units With Factory- - Installed; All Units - Bryant 580J Series Installation Instructions Manual

WARNING
!
FIRE HAZARD
Failure to follow this warning could result in
intermittent operation or performance satisfaction.
Do not connect aluminum wire between disconnect
switch and air conditioning unit. Use only copper
wire. (See Fig. 24.)
ELECTRIC
DISCONNECT
SWITCH
WIRE ONLY
ALUMINUM
Fig. 24 - - Disconnect Switch and Unit

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.
Units With Factory- - Installed Non- - Fused Disconnect —
The factory- - installed option non- - fused disconnect switch
(NFD) is located in the main control box. The manual
switch handle and shaft are shipped in the control box and
must be mounted on the corner post adjacent to the
control box (see Fig. 25). Note that the tape covering the
hole for the shaft in the corner post must be removed prior
to handle and shaft installation.
To field install the NFD shaft and handle:
1. Open the control box panel.
2. Make sure the NFD shipped from the factory is at
OFF position (the arrow on the black handle knob or
on the silver metal collar is at OFF).
3. Insert the shaft with the cross pin on the top of the
shaft in the horizontal position.
4. Measure the tip of the shaft to the outside surface of
the corner post to be 0.88".
5. Tighten the locking screw to secure the shaft to the
NFD.
6. Turn the handle to OFF position with red arrow point-
ing at OFF.
7. Install the handle on to the corner post vertically with
the red arrow pointing up.
COPPER
WIRE
A93033
8. Secure the handle to the corner post with (2) screws
and lock washers supplied.
Fig. 25 - - Handle and Shaft Assembly for NFD

All Units - -

All field wiring must comply with NEC and all local code
requirements.
Size wire based on MCA (Minimum Circuit Amps) on the
unit informative plate. See Fig. 26 for power wiring
connections to the unit power terminal block and equipment
ground. Maximum wire size is 2/0 AWG per pole.
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.
Voltage to compressor terminals during operation must be
within voltage range indicated on unit nameplate. See Tables
7- - 9. On 3- - phase units, voltages between phases must be
balanced within 2% and the current within 10%. Use the
formula shown in the legend for Tables 7- - 9 (see Note 2 on
page 40) to determine the percent of voltage imbalance.
22
C12385