EDA Wiring Diagram
This document outlines the wiring connections for the EDA unit, compatible with Lennox control boards CBK45UHET, CBK45UHVT, and CBK47UHET.
EDA Unit Components
EDA Unit
RDS in EDA
EDA Valve (M)
Connections: RED, GREY, BLACK wires.
EDA Relay
Terminals: 1, 2, 3, 4, 5, 6.
* DIODE IS CONCEALED IN THE WIRE.
Control Board and Connections
CONTROL BOARD
Sensor #1 (W1, G, O/S, R, DS, C, Y1, Y2)
Sensor #2 (W2, G, O/S, R, DS, C, Y1, Y2)
Power: 24V
CBK45UHET/ CBK45UHVT/ CBK47UHET
RDS in Air Handler
K183 Indoor Blower Relay
2-STAGE UNIT
Connections: Y1, Y2 to B2, B3 via K183-1.
1-STAGE UNIT
Connections: Y1, Y2 to B2, B3 via K183-1.
Wiring Notes and Instructions
⚠️ DS-Y1 JUMPER - MUST BE REMOVED FOR HUMIDITROL OPERATION
⚠️ Y1-Y2 JUMPER - ONLY REMOVE IF 2-STAGE COOLING
⚠️ RDS SENSOR in EDA UNIT MUST BE INSTALLED IN SENSOR #2 LOCATION
CONNECT LOW VOLTAGE EDA HARNESS TO CONTROL BOARD IN AIR HANDLER FOR HUMIDITROL OPERATION
⚠️ REFER TO EDA INSTALLATION INSTRUCTION, REPLACE THE CONTROL BOARD IN AIR HANDLER (1 RDS INPUT) WITH CONTROL BOARD SHIPPED WITH THE EDA (2 RDS INPUT) FOR HUMIDITROL OPERATION
Component Key
| KEY | DESCRIPTION | COMPONENT |
|---|---|---|
| RDS | A2L LEAK SENSOR | |
| K183 | INDOOR BLOWER RELAY |
NOTE: IF ANY WIRE IN THIS APPLIANCE IS REPLACED, IT MUST BE REPLACED WITH WIRE OF LIKE SIZE, RATING, INSULATION THICKNESS AND TERMINATION.
