Carrier WeatherMaker 50KCQ A04 Series, Service And Maintenance Instructions

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CONVENIENCE OUTLETS
Convenience Outlet Types
Two types of convenience outlets are offered on 50KCQ mod-
els: non-powered and unit-powered. Both types provide a 125
vac/15A Ground-Fault Circuit Interrupter (GFCI) duplex re-
ceptacle behind a hinged waterproof access cover, located on
the end panel of the unit. See Fig. 23.
Fig. 23 — 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. The cover
must be installed at unit installation. For shipment, the conve-
nience 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.
NOTE: DISCONNECT ALL POWER TO UNIT AND CONVE-
NIENCE OUTLET. Use approved lockout/tag-out procedures.
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.
3. 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).
4. Mount the weatherproof cover to the backing plate as
shown in Fig. 24.
5. Remove two slot fillers in the bottom of the cover to per-
mit service tool cords to exit the cover.
6. Check cover installation for full closing and latching.
Fig. 24 — Weatherproof Cover Installation
NON-POWERED TYPE
This type requires the field installation of a general-purpose
125 vac/15AC 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 vac 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 step-down
the main power supply voltage to the unit to 115 vac 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. 23.
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 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. 26.
DUTY CYCLE
The unit-powered convenience outlet has a duty cycle limita-
tion. The transformer is intended to provide power on an inter-
mittent basis for service tools, lamps, etc; it is not intended to
provide 15 amps loading for continuous duty loads (such as
electric heaters for overnight use). Observe a 50% limit on cir-
cuit loading above 8 amps (i.e., limit loads exceeding 8 amps
to 30 minutes of operation every hour).
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.
CONVENIENCE
OUTLET GFCI
PWD-CO FU S E
S WITCH
PWD-CO TRAN S FORMER
CONTROL BOX
ACCE
SS PANEL
COVER - WHILE-IN-USE
WEATHERPROOF
BASEPLATE FOR
GFCI RECEPTACLE
GASKET
GFCI RECEPTACLE
NOT INCLUDED
TOP
TO
P
TOP
WET LOC
ATIONS
W
ET
L
OC
ATI
ON
S