Duct installation
VAV controller that measures CO₂, temperature and humidity (%RH), for duct mounting.
We arrange shipment to almost every countryUG8-CRC-A-MB-24 is used for CO2, temperature and humidity control of indoor environment for duct mounting. It is a room controller which is used for controlling ventilation, heating, cooling and humidity.
The CO2 sensor in the product is maintenance-free in normal environments thanks to the built-in self-correcting ABC algorithm. This means that our sensors have an expected lifetime of at least 15 years and do not require any additional calibration when used in normal indoor air applications.
The desired function is set via a DIP switch. There are 15 pre-programmed functions for adaption to most requirements for room control of CO2, temperature and humidity. The installation instruction shows all pre-programmed settings. Some settings are similar, but e.g. the p-band for temperature is different so as to make it easily configurable for different requirements. The digital input has different functionality depending on the selected setting, and can be activated both physically and via MODBUS. All preset functions are fully adjustable via MODBUS RTU.
To check the function of the installation/system, the respective measurement values for CO2, temperature and humidity can be simulated manually, via MODBUS.
The UG8-CRC-A-MB-24 is supplied factory set in function 1 (VAV, heating and cooling control).
Preset functions
Functions 1-5 VAV, heating and cooling control
Functions 6-7 Transmitter function and digital output-on/off
Functions 8-11 VAV control with basic ventilation
Functions 12-14 VAV, heating and cooling control
Function 15 Control function
UG8-CRC-A-MB-24 are installed on a duct where the included PST195 tube are mounted with or without mounting bracket. Hole punch ø 38 mm. In the case of insulated, round and small ducts, mounting bracket (UG-MB-8) are used and the holes are then ø 51 mm. See separate instruction.
NOTE! When mounting outdoors, in cold attics, etc., the detector should be isolated from the surrounding air with e.g. UG-COVER-75, insulating box. In these cases, it should also be marked.
UG8-CRC-A-MB-24 is delivered without display.