Lennox International Inc. 021 User Manual
Page 14
EDA 01/06
Figure 12
Typical EDA/Condensing Unit Wiring Diagram
INDOOR
UNIT
B4
FAN
Blue
Yellow
Black
K1
1st, cut yellow
wire here.
wire here.
Use Wirenuts
*OUTDOOR RELAY
NOT REQUIRED WITH SINGLE-
SPEED OUTDOOR FAN
EDA
Violet
Orange
OUTDOOR WIRING
(VSM APPLICATION
ONLY)
Purple
Black
Black
Purple
VALVE
ACTUATOR
ACTUATOR
Y
ellow
Y
ellow
2
2nd, rewire yellow
wire as shown
wire as shown
Red
7
5
1
3
5
RED (NOT REQUIRED FOR
APPLICATIONS WITHOUT LSOM)
YELLOW
BLUE (NOT REQUIRED FOR SINGLE STAGE)
BLACK
BROWN (NOT REQUIRED FOR
APPLICATIONS WITHOUT LSOM)
SignatureStat
t
THERMOSTAT
INDOOR
UNIT
OUTDOOR
UNIT
TWISTED PAIR
PURPLE
OUTDOOR
SENSOR
(46M98)
RED
YELLOW
BLUE
BLACK
BROWN
BLACK
PURPLE
BLACK
RED
BLACK
Control Wiring
SEE CONTROL WIRING BELOW
FOR THERMOSTAT WIRING
FOR THERMOSTAT WIRING
DSY1 JUMPER − MUST BE
REMOVED FOR HUMIDITROL
OPERATION
REMOVED FOR HUMIDITROL
OPERATION
Y1Y2 JUMPER − ONLY
REMOVE IF 2−STAGE COOLING
REMOVE IF 2−STAGE COOLING
Y1Y2 JUMPER − IN FOR
SINGLE− STAGE COOLING;
REMOVED FOR 2−STAGE
COOLING
SINGLE− STAGE COOLING;
REMOVED FOR 2−STAGE
COOLING
RED
BLACK
PURPLE
EDA
UNIT
FAN RELAY (NOT REQUIRED
WITH SINGLE-SPEED
OUTDOOR FAN)
WITH SINGLE-SPEED
OUTDOOR FAN)