Superheat Controller for Electrical Control Valves EX4-8 EXD-SH1/2

EXD-SH1/2 are stand-alone universal superheat and or temperature controllers for air conditioning units or refrigeration systems.

• EXD-SH1: Control of one valve
• EXD-SH2: Control of two valves in two independent circuits
• Other functions: Limitation of evaporating pressure (MOP), Low pressure switch, freeze protection and manual positioning of valve(s)
• Self-adapting superheat control function in conjunction with EMERSON EX4-8 (EX4-7-FLR) and CV4-7 series
• For multiple refrigerants, including ultralow temperature refrigerant R23
• Modbus (RTU) communication
• Integrated keyboard with two lines display
• Monitoring of sensors and detection of sensor (ECN…/TP1…/PT5N…(FLR)) /stepper motor wiring failures
• Optional upload/download key (accessory) for transmission of parameter settings among controllers with the same setting
• Low/high superheat alarm as well as other function alarms
• Electrical connection via plug-in type screw terminals included with controller and Micro Molex EXD-M03 (must be ordered separately)
• DIN rail mounting housing