VDH MC785-SC stepper regulator electronic 230V building

VDH MC 785 SC stepper regulator electronic  

• Electronic step controller that regulates a maximum of 8 compressors and 8 condenser fans on and off based on the measured suction and discharge pressure and the set setpoints.
• Dimensions: panel 72 x 144 mm; depth = 120 mm.
• Panel protection: IP65.
• Direct connection RS485 for connection to network system.
• Rotation of the steps according to the number of running hours.
• Minimum and maximum pressure alarm, minimum and maximum failure, minimum and maximum temp. alarm.
• Sensor exclusive: Standard with 4 / 20mA input.
• Power supply: 230Vac.
• Controller 5 relays with output.
• Structure
• The MC 785-SC is a step controller that regulates a maximum of 8 compressors and 8 condenser fans on and off based on the measured suction and discharge pressure and the set setpoints.
• The controller can be set to switch the compressors on power or operating hours.
• Compressors of different capacities can be used.
• The controller itself can calculate the best combination of compressors.
• The condenser fans can be switched on or off based on the total running hours or in a fixed sequence.
• Compressors and condenser fans can be taken out of the control e.g. i.v.m. maintenance or malfunctions.
• A minimum and a maximum pressure alarm, a minimum and a maximum pressure alarm, a minimum and a maximum temperature alarm and a minimum and a maximum temperature alarm can be set to monitor the control. The various external faults can be reported on the step controller.
• As soon as an external fault arrives, the relevant compressor or fan is taken out of the control so that optimal control remains possible.
• A super-heat alarm can be set on the MC 785-SC to prevent liquid from entering the compressor.
• All settings and operating options can be authorized by means of a password.
• There is an RS485 network for controlling the MC785-SC from a PC, via the PC interface and a control program installed on the PC.
• The MC 785-SC is suitable for surface mounting.
• The MC 785-SC is supplied with 230Vac as standard.
• On request the controller can also be supplied for a different supply voltage.