DOTECH INC.

1. Main functions:<br />
- Temperature and humidity control function, maximum 6 loop of independent step operating function<br />
- Alternative operation by maximum 4 compressors and 8 heaters<br />
- Backup operating function<br />
- Prevention from frequent starting failure occurred by low pressure hunting using low pressure switch in compressor<br />
- Successive starting function, pump down function and prevention from restarting function<br />
- Control function for cold water, hot water, steam valve, SCR, damper designed for HVAC (4-20mA PID control)<br />
- Detection of error in temperature and humidity sensor, alarm function and output of equipment state (cooling and dehumidification and heating and humidification)<br />
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2. Models:<br />
<br />
DX100-00/DX100-11 (2 compressors)<br />
DX120-00/DX120-11 (4 compressors)<br />
DX140-00/DX140-11 (constant temperature and humidity unit)