Bryant 548J A Series Installation Instructions Manual page 12

Single package rooftop heat pump with puron (r--410a) refrigerant
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Units with Factory- - Installed Disconnect —
The factory- - installed option disconnect switch is located
in a weatherproof enclosure located under the main
control box. The manual switch handle is accessible
through an opening in the access panel. Discard the
factory test leads (see Fig. 16).
Units Without Disconnect Option
(3 Phase
Indoor Motor)
C
11
13
Disconnect
per
NEC
L1
L2
208/230-1-60
208/230-3-60
460-3-60
575-3-60
Units With Disconnect Option
L1
2
Optional
Disconnect
L2
4
Switch
L3
6
Disconnect factory test leads; discard.
Fig. 16 - - 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. 16 and the unit
label diagram for power wiring 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). 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.
IFC
(1 Phase Indoor Motor
13
TB
and 1 Phase Unit)
L3
1
Factory
3
Wiring
5
C09011
Convenience Outlets —
WARNING
!
ELECTRICAL OPERATION HAZARD
Failure to follow this warning could result in personal
injury or death.
Units with convenience outlet circuits may use
multiple disconnects. Check convenience outlet for
power status before opening unit for service. Locate
its disconnect switch, if appropriate, and open it.
Tag- - out this switch, if necessary.
Two types of convenience outlets are offered on
548J***A models: Non- - powered and unit- - powered. Both
types
provide
a
125- - volt
circuit- - interrupter) duplex receptacle rated at 15- - A
behind a hinged waterproof access cover, located on the
end panel of the unit. See Fig. 17.
Convenience
Outlet
GFCI
Pwd-CO
Fuse
Switch
Fig. 17 - - Convenience Outlet Location
Installing Weatherproof Cover –
A
weatherproof
while-in-use
factory-installed convenience outlets is now required by
UL standards. This cover cannot be factory-mounted due
its depth; it must be installed 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.
DISCONNECT
ALL
CONVENIENCE OUTLET.
Remove the blank cover plate at the convenience outlet;
discard the blank cover.
Loosen the two screws at the GFCI duplex outlet, until
1
approximately
/
-in (13 mm) under screw heads are
2
exposed. Press the gasket over the screw heads. 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).
12
GFCI
(ground- - fault
Pwd-CO
Transformer
Control Box
Access Panel
C08128
cover
for
POWER
TO
UNIT
AND
the

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