- Large Contribution to Reducing Global Warming (Environmental Protection) with Energy Saving
- Significant Energy Saving Realized!!
- Optimum Control for HVAC Facilities
- Optimal Structure Design
- Functions Suitable for HVAC Us
Cooling tower fan
The cooling tower fan is used to cool the heat of cooling water by emitting it into the air. The fan speed is adjusted optimally according to the cooling water temperature at the outlet. Moreover, the inverter estimates the wet-bulb temperature automatically to control the fan so that the temperature of cooling water (wet bulb) is interlocked to the air temperature. (Wet-bulb temperature presumption control)
Cooling water pump
The cooling water pump circulates the cooling water to the cooling tower in order to cool the heat generated by the Refrigeration machine. The pump speed is adjusted optimally according to the temperature and flow rate of cooling water. Moreover, the inverter can control the cooling pump so that the difference of cooling water temperature at between the inlet and outlet becomes always constant. (Temperature difference constant control)
Chilled water pump
The chilled water pump circulates the chilled water generated with the Refrigeration machine to the air conditioner and fan coil. The pump speed is adjusted optimally according to the header pressure. Moreover, the pump conveyance pressure can be controlled to proper value by converting the flow rate signal to the target pressure using the linearization function. (Linearization function)
Supply fan / Return fan
The speed of supply and return fans is adjusted optimally according to the pressure, discharge temperature, room temperature, and others. Moreover, the highest level of carbon dioxide is selected automatically by detecting the level in room to control it to stay within the allowable level.