Convenience Outlets - Carrier 48TC 17 Series Service And Maintenance Instructions

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.
Tag−out this switch, if necessary.
Two types of convenience outlets are offered on 48TC
models: Non−powered and unit−powered. Both types
provide a 125−volt Ground−Fault Circuit−Interrupter
(GFCI) duplex receptacle rated at 15A behind a hinged
waterproof access cover, located on the end panel of the
unit. See Fig. 32.
Non−Powered Type
This type requires the
general−purpose 125−volt 15A 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 125V power supply conductors into the bottom of
the utility box containing the duplex receptacle.
Convenience
Outlet
GFCI
Pwd-CO
Fuse
Switch
Fig. 32 − Convenience Outlet Location
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 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. 33.
field installation of
Pwd-CO
Transformer
Control Box
Access Panel
C08128
a
Fig. 33 − Powered Convenience Outlet Wiring
UNIT CONNECT
VOLTAGE AS
208,
240
230
460 480
575 600
Wet in Use Convenience Outlet Cover
The unit has a "wet in use" convenience outlet cover that
must be installed on the panel containing the convenience
outlet. This cover provides protection against moisture
entering the GFCI receptacle. This cover is placed in the
unit control box during shipment.
Duty Cycle
The unit-powered convenience outlet has a duty cycle
limitation. The transformer is intended to provide power
on an intermittent 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 circuit loading above 8 amps (i.e.,
limit loads exceeding 8 amps to 30 minutes of operation
every hour).
27
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
C10324