14
NUMBER OF WIRES REQUIRED—Indoor unit to: Air Sensors (Optional)
System Type Humiditrol EDA
Outdoor unit Outdoor Discharge
1-stage AC
3
8 4
2 2
2-stage AC 10 5
1-stage HP 8 6
2-stage HP 10 7
Lennox Communicating
FURNACE (IFC) OR
AIR HANDLER (AHC)
Clip W1 Jumper for
Humiditrol (EDA)
application
Operation sequence for
dehumidification
1. REMOVE 24 VOLTS FROM DH AND/OR DS
2. THERMOSTAT CYCLES OUTDOOR UNITS TO
Y2
3. INDOOR AND OUTDOOR FAN SPEEDS
REDUCED
OUTDOOR
SENSOR
(X2658)
CHARGE
DOOR
Air Sensors
(optional)
Trace cut for
Humiditrol (EDA)
application
Trace intact
OUTDOOR UNITS (A175) - WIRE EITHER CONTROL IDENTICALLY
CURRENT CONTROL EARLY CONTROL
DS—R TRACE - MUST BE CUT FOR
HUMIDITROL OPERATION. SEE TRACE CUT
DETAIL
DS—R (W1) JUMPER - MUST BE CUT FOR
HUMIDITROL OPERATION. SEE W1 JUMPER
DETAIL.
CS7500 and iComfort
M30
GREY
RED
EDA VA LVE
ACTUATOR
EDA RELAY
1N4005 DIODE (shrink wrapped -
diode is concealed in the wire.)
BLACK
VIOLET
ORANGE
EDA VA LVE
ACTUATOR
EDA RELAY
RED
SEE TRACE CUT DETAIL.
SEE W1 JUMPER DETAIL.
LATER MODEL VALVE
ACTUATOR
EARLIER
MODEL VALVE
ACTUATOR
L1
Humiditrol
CS7500 and iComfort
M30
Figure 13. CS7500 or M30 with Communicating Indoor and Outdoor Units with Both Wired Non-Communicating
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