How to fix liquid hammer in the compressor of my Danfoss Controller?
Liquid hammer in the compressor of your Danfoss Controller can be caused by: * Superheat of expansion valve being too low: Increase the values of SH close and SH min. * Superheat reference set too low: Increase the value of SH min. * The S2 sensor not in good contact with the suction line: Ensure that the S2 sensor is secured on the suction line and insulate the sensor.
General| Type | Electronic controller |
|---|---|
| Number of Inputs | 2 |
| Number of Relays | 3 |
| Relay Output | SPDT |
| Display | LCD |
| Enclosure Rating | IP20 |
| Protection Class | II |
| Power Supply | 24 V AC/DC |
| Sensor Type | Pt1000 |
| Control Type | On/Off |
| Control Functions | Temperature control, defrost control |
| Inputs | Digital input |
| Outputs | relay |
| Storage Temperature | -40 to +70 °C |
| Application | Heating, ventilation, and air conditioning (HVAC) |
| Relative Humidity | 5% to 95% (non-condensing) |
Details the mandatory electrical connections for the controller's basic functionality.
Outlines connections tailored for specific application requirements and features.
Explains the controller's display settings and the function of front panel LEDs.
Details how to use the controller's buttons for menu access and setting changes.
Provides step-by-step guides for common user operations and settings.
Covers controller addressing and the function of the ON/OFF switch.
Details how to define input signals for the analog input (AIA).
Outlines the steps required before the controller regulation can begin.
Provides guidance for diagnosing and resolving superheating fluctuations.
Explains the ETS valve's response when controller supply voltage is interrupted.
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