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A55
KEY
A7
A130
A55
A62
A72
B7
B43
J3
J104
J105
J153
J193
J298A
J262A
J262B
P3
P153
P193
P262
S118
S174
1
2
3
POWER:
1-
A55 Unit Controller energizes the economizer components with 24VAC.
OPERATION:
2-
The A55 Unit Controller along with outdoor enthalpy sensor A7 and indoor enthalpy sensor A62
(if differential enthalpy is used) powers the damper motor B7.
3-
A55 supplies B7 with 0 - 10 VDC to control the positioning of economizer.
4-
The damper actuator provides 2 to 10 VDC position feedback.
ECONOMIZER
4
1
3
4
1
5
A7
7
2
8
1
S174
A62
9
1
3
B43
1
2
3
2
DESCRIPTION
COMPONENT
SENSOR, SOLID STATE ENTHALPY
CONTROL, ERS
CONTROL, MAIN PANEL LENNOX
SENSOR, ENTHALPY INDOOR
CONTROL, REMOTE MIN POS (OPT)
MOTOR, DAMPER ECONOMIZER
MOTOR, EXHAUST DAMPER
JACK, UNIT ECONOMIZER
JACK, SENSOR OUTDOOR ENTHALPY
JACK, SENSOR RETURN AIR ENTHALPY
JACK, ENTHALPY / DAMPER MOTOR
JACK, ENTHALPY SENSOR
JACK, IAQ INTERFACE
JACK, DAMPER MOTOR
JACK, ENTHALPY SENSORS
PLUG, ECONOMIZER BYPASS
PLUG, ENTHALPY / DAMPER MOTOR
PLUG, ENTHALPY SENSOR
PLUG, ECONOMIZER OUTPUT
THERMOSTAT, DESICANT DEFROST
SWITCH, EXHAUST DAMPER
B7
3
2
A72
1
2
2
1
4
3
8
3
9
5
7
1
A130
TB37
8
1
1
9
3
3
10
2
2
4
4
2
5
2
5
5
1
6
1
6
6
4
5
6
ENERGENCE/STRATEGOS SERIES ECONOMIZER AND MOTORIZED OAD
PIVOTING WHEEL ENERGY RECOVERYSYSTEM OPTION
Supersedes
Page 55
B7
RED
WHITE
BRWN
BLK
K1
K2
K4
WIRING DIAGRAM
ACCESSORIES
SECTION D
REV 3
New Form No.
537189-01
04/18
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