Stand-alone universal overheat and/or temperature controller for air conditioners or refrigeration systems EXD-SH1
Used to control refrigerant vapor superheat when using EX4, EX5, EX6, EX7 and EX8 electronic step expansion valves. CAUTION (replaced by EXD-SH1)
On request
Stand-alone universal overheat and/or temperature controller for air conditioners or refrigeration systems.
- Refrigerant vapour superheat control with auto-adaptive control algorithm
- Works with EX4 to EX8 electronic expansion valves
- Controls superheat, temperature, defrost and fans
- Backup power supply for emergency shutdown and shutdown of the EEV in the event of a power failure
- Analog output for connection to another controller
- Auxiliary digital input
- Alarm relay for reporting faults and abnormal situations
- Allows connection of remote display ECD-002 (not included)
| Power supply | 24 Vac/dc |
| Design (panel size) | DIN |
| Type of regulation | PID |
| Control input | Temperature sensor + analog signal |
| Auxiliary digital input | Yes |
| Output - relay | 1x |
| Analog output | Yes |
| Producer | Emerson |
| TECHNICAL PARAMETERS | |
|---|---|
| Refrigerant compatibility | R-410A, R-134a, R-22, R-404A, R-507, R-407C, R-23, R-744, R-454A, R-454C, R-1234yf, R-1234ze(E), R-452B, R-32, R-452A, R-448A, R-449A, R-450A, R-513A, R-454B, R-455A, R-290, R-1270 |
| Functions | Overheat regulator, temperature regulator |
| Compatible with | EX4-8, EX4-7...FLR, CV4-6 |
| Supply voltage | AC/DC 24 V |
| Power input | 25 VA |
| Operating temperature | 0 to 55°C |
| IP | 00 |
Functions
- EXD-SH1: single valve control
- EXD-SH2: control of two valves in two independent circuits
- Evaporation pressure limitation (MOP), low pressure switch, freeze protection and manual positioning of valve(s)
- Self-acting overtemperature control function in conjunction with Emerson EX4-8 and CV4-6 series
- For multiple refrigerants, including ultra-low temperature R23 refrigerant (ECN-Z60 only)
- Modbus (RTU) communication
- EXD-SH2: dual evaporator/EXV operation with one pressure transmitter
- Integrated keypad with two-line display
- Sensor monitoring and stepper motor fault detection (ECN/TP1/PT5)
- Optional upload/download key (accessory) for transferring parameter settings between control units with the same settings
- Low/high overtemperature alarm and other functional alarms
- Electrical connection via plug-in screw terminals included in the controller and Micro Molex EXD-M03 (to be ordered separately); DIN rail mounting housing
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