36
CONVENIENCE OUTLETS
ELECTRICAL OPERATION HAZARD
Failure to follow this warning could result in personal
injury or death.
Units with convenience outlet circuits can 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.
!
WARNING
Two types of convenience outlets are offered on 48TC
models: Non--powered and unit--powered. Both types
provide
a
125--volt
GFCI
(ground--fault
circuit--interrupter) duplex receptacle rated at 15--A
behind a hinged waterproof access cover, located on the
end panel of the unit. See Fig. 41.
Non--powered type:
This type requires the field
installation of a general--purpose 125--volt 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.
CONVENIENCE
OUTLET GFCI
PWD-CO FUSE
SWITCH
PWD-CO TRANSFORMER
CONTROL BOX
ACCESS PANEL
C08128
Fig. 41 -- 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. 41.
C08283
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
Fig. 42 -- Powered Convenience Outlet Wiring
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 a 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. 42.
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).
GFCI Maintenance:
Periodically test the GFCI
receptacle by pressing the TEST button on the face of the
receptacle.
1. Press the TEST button on the face of the GFCI
receptacle. This should cause the internal GFCI
circuit to trip and open the receptacle.
2. Inspect for proper grounding and power line phasing
should the GFCI receptacle fail to trip.
3. Repair ground wire connections as needed and
correct line phasing.
48TC
Summary of Contents for 48TC 04 Series
Page 27: ...27 COOLING CHARGING CHARTS cont C14064 Fig 33 Cooling Charging Charts 12 5 Ton 48TC...
Page 29: ...29 COOLING CHARGING CHARTS cont C13218 Fig 35 Charging Chart 48TC Size D16 48TC...
Page 40: ...40 C14052 Fig 51 Typical Smoke Detector System Wiring 48TC...
Page 122: ...122 APPENDIX III WIRING DIAGRAMS C12413 Fig 103 48TC A04 A07 Power Diagram 208 230 1 60 48TC...
Page 124: ...124 APPENDIX III WIRING DIAGRAM LIST C12415 Fig 105 48TC A04 A07 Power Diagram 575 3 60 48TC...
Page 126: ...126 APPENDIX III WIRING DIAGRAM LIST C13246 Fig 107 48TC A08 A12 Power Diagram 575 3 60 48TC...
Page 128: ...128 APPENDIX III WIRING DIAGRAM LIST C13247 Fig 109 48TC D08 D12 Power Diagram 575 3 60 48TC...
Page 130: ...130 APPENDIX III WIRING DIAGRAM LIST C13249 Fig 111 48TC D14 Power Diagram 575 3 60 48TC...
Page 139: ...139 APPENDIX III WIRING DIAGRAMS C12423 Fig 120 48TC D16 Power Diagram 575 3 60 48TC...
Page 143: ...143 APPENDIX III WIRING DIAGRAM LIST C13485 Fig 124 48TC 16 PremierLink Control Diagram 48TC...
Page 145: ...145 APPENDIX III WIRING DIAGRAM LIST C13487 Fig 126 48TC 16 RTU Open Control Diagram 48TC...
Page 146: ...146 APPENDIX III WIRING DIAGRAM LIST C14124 Fig 127 48TC D08 14 E08 14 W7220 2 Speed IFM 48TC...