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UNIT LOW VOLTAGE CONNECTIONS
A
CUTOUT WITH
GROMMET
B
24V CONTROL
24VAC Control Wiring Diagrams (Field Installed)
EL280, EL295, EL296
ML18XC2
BLUE
C
WIRE NUTS
D
WIRES
TIGHTEN
WIRE TIE
FIGURE 13
THERMOSTAT
5
CBA27
THERMOSTAT
ML18XC2
4
BLUE
Air handler shipped with jumpers installed between W1 and W2
1
and W2 and W3.
R connection required for air conditioner with LSOM. Resistor kit
2
(CAT #47W97) required when connection ComfortSense 7000
with LSOM 2.
L connection wired on units with LSOM.
3
Remove jumper for 2-stage cooling.
4
Clip onboard Y1 to Y2 for 2-stage cooling.
5
NOTE - Refer to furnace, blower coil and accessory instructions for
additional wiring configurations with other optional controls.
FIGURE 14. Typical Control Wiring
HIGH VOLTAGE FIELD WIRING
FACTORY WIRING
LOW VOLTAGE (24V) FIELD WIRING
WIRE RUN LENGTH
LESS THAN 100' (30 METERS)
MORE THAN 100' (30 METERS)
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.
NOTE - FOR PROPER VOLTAGES, SELECT THERMOSTAT WIRE (CONTROL WIRES)
GAUGE PER TABLE ABOVE.
NOTE - WIRE TIE PROVIDES LOW VOLTAGE WIRE STRAIN RELIEF AND MAINTAINS
SEPARATION OF FIELD-INSTALLED LOW-AND HIGH-VOLTAGE CIRCUITS.
NOTE - DO NOT BUNDLE ANY EXCESS 24VAC CONTROL WIRES INSIDE CONTROL
BOX.
SLP98, SL28UH, SL280DF
ML18XC2
5
BLUE
CBA38MV
2
ML18XC2
RED
3
BROWN
BLUE
Y2
Page 12
AWG# INSULATION TYPE
18
TEMPERATURE RATING
16
35ºC MINIMUM.
THERMOSTAT
THERMOSTAT
1
5
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