Page 12
A - Run 24VAC control wires through cutout with grommet.
B - Run 24VAC control wires through wire tie.
C - Make 24VAC control wire connections using field-provided
wire nuts.
D - Tighten wire tie to security 24V control wiring.
HIGH VOLTAGE FIELD WIRING
LOW VOLTAGE (24V) FIELD WIRING
FACTORY WIRING
CUTOUT WITH
GROMMET
NOTE - FOR PROPER VOLTAGES, SELECT THERMOSTAT WIRE (CONTROL WIRES)
GAUGE PER TABLE ABOVE.
WIRE RUN LENGTHAWG# INSULATION TYPE
LESS THAN 100' (30 METERS) 18 TEMPERATURE RATING
MORE THAN 100' (30 METERS) 16 35ºC MINIMUM.
WIRE NUTS
BLACK
24V CONTROL WIRES
YELLOW
TIGHTEN WIRE TIE
Unit Low Voltage Wiring
NOTE - DO NOT BUNDLE ANY EXCESS 24VAC CONTROL WIRES INSIDE CONTROL
BOX.
NOTE - WIRE TIE PROVIDES LOW VOLTAGE WIRE STRAIN RELIEF AND MAINTAIN
SEPARATION OF FIELD-INSTALLED LOW AND HIGH VOLTAGE CIRCUITS.
A
B
C
D
FIGURE 12
NOTE - Refer to furnace, blower coil and accessory instructions for
additional wiring configurations with other optional controls.
24VAC Control Wiring Diagrams (Field Installed)
EL17
ML180E
ML193E
ML196E
EL180NE
EL195NE
EL196NE
FURNACE
EL280E, EL296E
ML296V
EL296V
SL280NV
CBA25UHV
CBA25UH
CBA27UHE
CBA38MV
BROWN
BLUE
RED
1
2
3
1
2
3
Air handler shipped with jumpers installed between W1 and W2
and W2 and W3.
R connection required for air conditioner with LSOM. Resistor kit
(CAT #47W97) required when connection ComfortSense 7000
with LSOM 2.
L connection wired on units with LSOM.
EL17 EL17
EL17
EL17
EL17
EL17
FIGURE 13
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