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CoreSense™
Electronics Module:
CoreSense™ electronics Module
Function Descriptions:
Dipswitch
Factory Setting
SW1 bit1
OFF
SW1 bit2
OFF
SW2 and SW3
Not used
UP
Reserved
RESET
Dry Contact -
Alarm
Output Terminal
Compressor
Contactor
Board Power Supply
Input Terminals (From
12VAC Transformer)
DLT Sensor
EXV Driver
Board
Operation - EXV Testing
Button
Function
Up
To operate EXV manually
Down
Reset
Resets the board
The KHZXXXLRL use the proven ZSI compressor range which features Liquid Injection Technology controlled by an
intelligent electronics platform—the CoreSense™ Control Board. CoreSense™ regulates liquid injection by sensing the
Discharge Line Temperature (DLT) to widen the operating envelope and enhance the product reliability. It also features
LED display that alerts the user of sensor status and Electronic Expansion Valve (EEV) operation.
The board will be used to turn the compressor on/off based on
the demand signal from low pressure switch and thermostat.
The board will control Liquid Injection through an EXV based
on a temperature sensor placed on the discharge line.
Dipswitch Setting
• SW1 is used to control the liquid injection
setpoint and cut out. Do not change settings and
ensure that a replacement board is set correctly.
• SW2 and SW3 are not functional in ZSI CDU units
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