Carrier WeatherMaster 50HC14 Installation Instructions Manual page 18

Fig. 30 — Handle and Shaft Assembly for HACR
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 the
50HC**14 models: non-powered and unit-powered. Both
types provide a 125-v GFCI (ground-fault circuit-interrupter)
duplex receptacle rated at 15-A behind a hinged waterproof
access cover, located on the panel beneath the control box.
See Fig. 31.
Non-powered type
This type requires the field installation of a general-pur-
pose 125-v 15-A circuit powered from a source elsewhere in
the building. Observe national and local codes when selecting
wire size and conduit requirements, fuse or breaker require-
ments and disconnect switch size and location. Route 125-v
power supply conductors into the bottom of the utility box
containing the duplex receptacle.
Disconnect
Access Panel
Fig. 31 — Convenience Outlet Location
Unit-powered type
A unit-mounted transformer is factory-installed to step-
down the main power suppl 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. 31.
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; this will provide ser-
vice 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. 33. On a unit without a unit-
mounted disconnect, connect the source leads to the main ter-
minal block (TB1).
If the convenience outlet transformer is connected to the
line side of a field disconnect, the conduit provided with the
unit must be used to protect the wire as they are routed from
the transformer to the field disconnect. The end of the conduit
with the straight connector attaches to the field disconnect.
The other end does not need to connect to the transformer;
however, the conduit must be routed so that all wiring is ei-
ther in the conduit or behind the access panel.
If the convenience outlet transformer is connected to the
line side of the factory disconnect option, route the wires
through the web bushing located on the bottom of the discon-
nect box. For the load side wiring to the factory option dis-
connect, route the wires through the hole on the right side of
the disconnect. Be sure to create a drip loop at least 6-in.
long.
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 receptacle does not trip as required. Press the RE-
SET button to clear the tripped condition.
18
Pwd-CO
Fuse
Switch
Pwd-CO
Transformer
Convenience
Outlet
GFCI