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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
CONTROL
WIRING
HIGH VOLTAGE
FIELD WIRING
LOW VOLTAGE
FIELD WIRING
FACTORY
WIRING
GROMMET AND
WIRE TIE
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
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:
Yellow to Y1
Black to C (common)
NOTE For proper voltages, select thermostat wire (control wires)
gauge per Table above
.
NOTE Wire tie provides low voltage control wire strain
relief and to maintain separation of field installed low and
high voltage circuits.
A
W1
Y
G
C
R
Y
G
C
THERMOSTAT
INDOOR UNIT
POWER
HEAT
COOLING
INDOOR
BLOWER
COMMON
OUTDOOR
UNIT
Y1
C
W
R
TYPICAL LOW VOLTAGE FIELD
WIRING
HIGH VOLTAGE
FLEXIBLE CONDUIT
THREE PHASE
SINGLE PHASE
NOTE Do not bundle any excess 24VAC control wires
inside control panel.
CONTROL
WIRING
GROUND
HIGH VOLTAGE
CONNECTIONS
(CONTACTOR)
HIGH VOLTAGE
CONNECTIONS
(CONTACTOR)
GROUND
GROMMET AND
WIRE TIE
HIGH VOLTAGE
FLEXIBLE CONDUIT
B
A
B
