Convenience Outlets - Carrier 48HC Installation Instructions Manual

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.
Lock- - out and tag- - out this switch, if necessary.
Two types of convenience outlets are offered on 48HC
models: Non- - powered and unit- - powered. Both types
provide a 125- - volt GFCI (ground- - fault circuit- - interrupter)
duplex receptacle rated at 15- - A behind a hinged waterproof
access cover, located on the end panel of the unit. See Fig.
30.
NOTE: Unit powered convenience outlets are not available
as factory installed options for single phase (- - 3 voltage
code) models.
Convenience
Outlet
GFCI
Pwd-CO
Fuse
Switch
Access Panel
Fig. 30 - - Convenience Outlet Location
Installing 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
installed at unit installation.
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 POWER
CONVENIENCE OUTLET. LOCK- - OUT AND TAG- - OUT
ALL POWER.
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
Pwd-CO
Transformer
Control Box
C08128
Cover: A weatherproof
For shipment,
TO UNIT AND
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).
Mount the weatherproof cover to the backing plate as
shown in Fig. 31. Remove two slot fillers in the bottom of
the cover to permit service tool cords to exit the cover.
Check for full closing and latching.
COVER – WHILE-IN-USE
WEATHERPROOF
Fig. 31 - - Weatherproof Cover Installation
Non- - powered type: This type requires the field
installation of a general- - purpose 125- - volt 15- - A circuit
powered from a source elsewhere in the building. Observe
national and local codes when selecting wire size, fuse or
breaker requirements and disconnect switch size and
location. Route 125- - v power supply conductors into the
bottom of the utility box containing the duplex receptacle.
Unit- - powered type: A unit- - mounted transformer is
factory- - installed to stepdown the main power supply
voltage to the unit to 115- - v at the duplex receptacle. This
option also includes a manual switch with fuse, located in
a utility box and mounted on a bracket behind the
convenience outlet; access is through the unit's control
box access panel. See Fig. 30.
The primary leads to the convenience outlet transformer are
not factory- - connected. Selection of primary power source is
a customer- - option. If local codes permit, the transformer
primary leads can be connected at the line- - side terminals on
the unit- - mounted non- - fused disconnect or HACR breaker
switch; this will provide service power to the unit when the
the
unit disconnect switch or HACR switch is open. Other
connection methods will result in the convenience outlet
circuit being de- - energized when the unit disconnect or
HACR switch is open. See Fig. 32.
Using unit- - mounted convenience outlets: Units with
unit- - mounted convenience outlet circuits will often
require that two disconnects be opened to de- - energize all
power to the unit. Treat all units as electrically energized
until the convenience outlet power is also checked and
de- - energization is confirmed. Observe National Electrical
Code Article 210, Branch Circuits, for use of convenience
outlets.
18
RECEPTACLE
NOT INCLUDED
BASE PLATE FOR
GFCI RECEPTACLE
C09022