Carrier WeatherExpert 50LC 07 Series Installation Instructions Manual page 21

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 approx-
imately / -in. (13 mm) under screw heads are exposed. Press
1
2
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. 29. Remove two slot fillers in the bottom of the cover to
permit service tool cords to exit the cover. Check for full clos-
ing and latching.
COVER - WHILE-IN-USE
WEATHERPROOF
BASEPLATE FOR
GFCI RECEPTACLE
Fig. 29 — 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 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 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. 28.
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. 30.
Using unit-mounted convenience outlets
Units with unit-mounted convenience outlet circuits will often
require that two disconnects be opened to de-energize all pow-
er 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.
Fuse on power type: The factory fuse is a Bussman
T-15, non-renewable screw-in (Edison base) type plug fuse.
GFCI RECEPTACLE
NOT INCLUDED
GASKET
"Fusetron"
1
21
UNIT CONNECT
VOLTAGE AS
208, 230 240
460 480
575 600
Fig. 30 — Powered Convenience Outlet Wiring
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.
Convenience outlet usage rating
See Fig. 31.
Fig. 31 — Convenience Outlet Utilization Notice Label
Test the GFCI receptacle by pressing the TEST button on the
face of the receptacle to trip and open the receptacle. Check for
proper grounding wires and power line phasing if the GFCI re-
ceptacle does not trip as required. Press the RESET button to
clear the tripped condition.
HACR
The amp rating of the HACR factory-installed option is based
on the size, voltage, indoor motor and other electrical options
of the unit as shipped from the factory. If field-installed acces-
sories are added or changed in the field (i.e. electric heat, pow-
er exhaust, ERV), the HACR may no longer be of the proper
amp rating and therefore will need to be removed from the
unit. See unit nameplate and label on factory-installed HACR
for the amp rating of the HACR that was shipped with the unit
1. Bussman and Fusetron are trademarks of Cooper Technologies
Company.
PRIMARY TRANSFORMER
CONNECTIONS TERMINALS
L1: RED +YEL H1 + H3
L2: BLU + GRA H2 + H4
L1: RED H1
Splice BLU + YEL H2 + H3
L2: GRA H4
L1: RED H1
L2: GRA H2