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14ACX SERIES
Any excess high voltage field wiring should be trimmed and
secured away from any low voltage field wiring. To facilitate a
conduit, a cutout is located in the bottom of the control panel.
Connect conduit to the control panel using a proper conduit fitting.
ROUTING HIGH VOLTAGE/ GROUND AND CONTROL WIRING
HIGH VOLTAGE
FIELD WIRING
LOW VOLTAGE
FIELD WIRING
FACTORY
WIRING
WIRE RUN LENGTH AWG# INSULATION TYPE
LESS THAN 100’ (30 METERS) 18 TEMPERATURE RATING
MORE THAN 100’ (30 METERS) 16 35ºC MINIMUM.
Install low voltage wiring from outdoor to indoor unit and from thermostat
to indoor unit as illustrated.
HIGH VOLTAGE / GROUND WIRES
LOW VOLTAGE CONTROL WIRING
A Run 24VAC control wires through hole with grommet and secure with
provided wire tie.
B Make 24VAC thermostat wire connections. Locate the two wires from the
contactor and make connection using field provided wire nuts:
S Yellow to Y1
S Black to C (common)
NOTE Ċ For proper voltages, select thermostat wire (control wires)
gauge per table above.
NOTE Ċ Wire tie provides low voltage control wire strain relief and to
maintain separation of field installed low and high voltage circuits.
W1
Y
G
C
R
Y
G
C
THERMOSTAT
INDOOR UNIT
POWER
HEAT
COOLING
INDOOR
BLOWER
COMMON
OUTDOOR
UNIT
Y1
C
W
R
SINGLE PHASE
NOTE Ċ Do not bundle any excess 24VAC control wires inside
control panel.
CONTROL
WIRING
HIGH VOLTAGE
CONNECTIONS
(CONTACTOR)
GROUND
GROMMET AND
WIRE TIE
HIGH VOLTAGE
FLEXIBLE
CONDUIT
A
B
YELLOW
BLACK
Figure 15. Typical Field Wiring Diagram