Carrier 50KC*A/B0 Series, Installation Instructions Manual

Page: 15 / 48

15
CONVENIENCE OUTLETS
Two types of convenience outlets are offered on 50KC mod-
els: Non-powered and unit-powered. Both types provide a
125-volt GFCI (ground-fault circuit-interrupter) duplex re-
ceptacle rated at 15-A behind a hinged waterproof access
cover, located on the end panel of the unit. See Fig. 22.
NOTE: Unit powered convenience outlets are not available as
factory installed options for size 04-06 single phase (-3 voltage
code) models.
Fig. 22 — 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 to 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 POWER TO UNIT AND CONVE-
NIENCE OUTLET. LOCK-OUT AND TAG-OUT ALL
POWER.
Remove the blank cover plate at the convenience outlet; dis-
card the blank cover.
Loosen the two screws at the GFCI duplex outlet, until ap-
proximately 1 /
2
-in. (13 mm) under screw heads are 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. 23. 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.
Fig. 23 — Weatherproof Cover Installation
Non-Powered Type:
This type requires the field installation of a general-purpose
125-v 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 conduc-
tors 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 du-
plex 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. 22.
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 prima-
ry leads can be connected at the line-side terminals on the
unit-mounted non-fused disconnect switch; this will provide
service power to the unit when the unit disconnect switch is
open. Other connection methods will result in the conve-
nience outlet circuit being de-energized when the unit discon-
nect switch is open. See Fig. 24.
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.
CONVENIENCE
OUTLET GFCI
PWD-CO FU S E
S WITCH
PWD-CO TRAN S FORMER
CONTROL BOX
ACCE
SS PANEL
COVER - WHILE-IN-U S E
WEATHERPROOF
BA S EPLATE FOR
GFCI RECEPTACLE
GA S KET
GFCI RECEPTACLE
NOT INCLUDED
TOP
TO
P
TOP
WET LOC
ATIONS
W
ET
L
OC
ATI
ON
S