Carrier WeatherMaster 50HC*A07 Series, Installation Instructions Manual

Page: 18 / 52

18
CONVENIENCE OUTLETS
Two types of convenience outlets are offered as factory-in-
stalled options on 50HC models: non-unit-powered and unit-
powered. Both types provide a 125-volt GFCI (ground fault
circuit interrupter) duplex receptacle rated at 15A behind a
hinged waterproof access cover, located on the end panel of
the unit. See Fig. 24.
A 20 amp non-powered convenience outlet is available as
a field-installed accessory.
Fig. 24 — Convenience Outlet Location
Non-Unit-Powered Type
This type requires the field installation of a general-pur-
pose 125-volt 15-A circuit powered from a source elsewhere
in the building. Observe national and local codes when select-
ing wire size, fuse or breaker requirements and disconnect
switch size and location. Route 125v 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 step-
down the main power supply voltage to the unit to 115v 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. 24.
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 con-
nection methods will result in the convenience outlet circuit
being de-energized when the unit disconnect or HACR switch
is open. See Fig. 25.
Fig. 25 — Powered Convenience Outlet Wiring
Figure 26 shows the Convenience Outlet Utilization label
which is located below the convenience outlet.
Fig. 26 — Convenience Outlet Utilization 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 receptacle does not trip as required. Press the RE-
SET button to clear the tripped condition.
Fuse On Power Type
The factory fuse is a Bussman “Fusetron” 1 T-15, non-re-
newable screw-in (Edison base) type plug fuse.
Installing Weatherproof Cover
A weatherproof while-in-use cover for the factory-in-
stalled 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 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.
WARNING
Failure to follow this warning could result in personal injury
or death.
Units with convenience outlet circuits may use multi-
ple disconnects. Check convenience outlet for power sta-
tus before opening unit for service. Locate its disconnect
switch, if appropriate, and open it. Lock-out and tag-out
this switch, if necessary.
Convenience
O u tlet
GFCI
Pwd-CO
F us e
S witch
Pwd-CO
Tr a n s former
Control Box
Acce ss P a nel
UNIT
VOLTAGE
CONNECT
AS
PRIMARY
CONNECTIONS
TRANSFORMER
TERMINALS
208, 230 240
L1: RED + YEL
L2: BLU + GRA H1 + H3
H2 + H4
460 480
L1: RED
Splice BLU + YEL
L2: GRA H1
H2 + H3
H4
575 600
L1: RED
L2: GRA H1
H2
1 Bussman and Fusetron are trademarks of Cooper Technologies
Company.