Bryant Preferred 549J 04, Installation Instructions Manual

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16
Fig. 23 — Power Wiring Connections
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. 23 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.
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.
NOTE: 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 1 /
4
-in. female
spade connector from the 230v connection and moving it to the
200v 1 /
4
-in. male terminal on the primary side of the transform-
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
Two types of convenience outlets are offered on 549J 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. 24.
Fig. 24 — Convenience Outlet Location
Installing Weatherproof Cover
A weatherproof while-in-use cover for the factory-installed
convenience outlets is now required by UL standards. This
cover cannot be factory-mounted due its depth; it must be in-
stalled at unit installation. For shipment, the convenience outlet
is covered with a blank cover plate.
The weatherproof cover kit is shipped in the unit’s control box.
The kit includes the hinged cover, a backing plate, and gasket.
1. Remove the blank cover plate at the convenience outlet;
discard the blank cover.
2. Loosen the two screws at the GFCI duplex outlet, until
approximately 1/2 -in. (13 mm) under screw heads is
exposed. Press the gasket over the screw heads.
3. Slip the backing plate over the screw heads at the keyhole
slots and align with the gasket; tighten the two screws
until snug (do not over-tighten).
4. Mount the weatherproof cover to the backing plate as
shown in Fig. 25.
5. Remove two slot fillers in the bottom of the cover to per-
mit service tool cords to exit the cover.
6. Check for full closing and latching.
WARNING
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.
Units Without Disconnect Option
Units With Disconnect Option
2
4
6
1
3
5
L1
L2
L3
Optional
Disconnect
Switch
Disconnect factory test leads; discard.
Factory
Wiring
11 13 13
L1 L2 L3
TB
C
IFC
(3 Phase
Indoor Motor)
(1 Phase Indoor Motor
and 3 Phase Unit)
208/230-3-60
460-3-60
575-3-60
Disconnect
per
NEC
11 23
C
208/230-1-60
Disconnect
per
NEC
WARNING
PERSONAL INJURY HAZARD
Failure to follow this caution could result in personal injury
or death.
Disconnect all power to unit and convenience outlet. Lock-
out and tag-out all power.
CONVENIENCE
OUTLET GFCI
PWD-CO FU S E
S WITCH
PWD-CO TRAN S FORMER
CONTROL BOX
ACCE
SS PANEL