Description
Chiltrix CXDHC-SA Psychrologix Dynamic Humidity Controller
Dynamic Humidity Control (DHC) The Chiltrix chiller with DHC has the ability to dynamically adjust the loop water temperature, and thus modulate the coil temperature in response to indoor relative humidity and dew point conditions. A control algorithm reads input from indoor sensors and adjusts the temperature of the water/coils such that the water loop and coil temperatures can be equal to, just above, well above, just below, or well below, the dew point, resulting in controllable dehumidification and controllable humidity. This allows the system to operate the coils above the dew point when the humidity is at an acceptable level (no dehumidification performed) and drop below the dew point when dehumidification is needed. The Chiltrix system is designed to operate the loop at the warmest possible temperature that will allow proper cooling of the space and allow the user-defined humidity levels to be maintained.
How the Chiltrix Chiller Works with DHC The Chiltrix chiller can react very rapidly to humidity condition changes. The Chiltrix chiller uses a variable speed DC Inverter compressor, and a variable speed DC Inverter water pump, and DC inverter fan. By controlling the compressor speed, the system regulates the leaving/exit loop temperature. By controlling the speed of the pump the Chiltrix chiller maintains a constant ?T between its entering and leaving temperature and provides the correct flow rate to match the capacity requirements. Controlling the pump and compressor together in this manner, the variable capacity Chiltrix output is always matched to the current cooling load. Because the Chiltrix chiller can dynamically match the load, there is often no need for a buffer tank. Because there is no buffer tank, the Chiltrix chiller can rapidly execute commands received from the DHC to adjust the loop temperature in real time for purposes of accurate and responsive humidity control.
