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AK-PC 783A is complete regulating units for capacity control of compressors and condensers in refrigeration plants with cascade function.
The controller controls the high-pressure circuit, low-pressure circuit and cascade circuit.
The controller is with oil management, simple heat recovery function and coordination between the high-pressure control and low-pressure control.
In addition to capacity control the controllers can give signals to other controllers about the operating condition, e.g. forced closing of expansion valves, alarm signals and alarm messages.
The controller’s main function is to control compressors and condensers so that operation all the time takes place at the energy-optimum pressure conditions. Both suction pressure and condensing pressure are controlled by signals from pressure transmitters.
Capacity control is carried out by suction pressure P0 on the two circuits.
Cascade control is performed in accordance with the two temperature sensors, Scasc2 and Scasc3.
Product Details:
- Communication Type: LON RS-485, RJ11 (CAN) to Display, RS-232, USB-B to PC
- Controller Type: Pack Controller
- Digital Outputs (DO) [pc]: 8 pc
- Function: Pack w. Cascade
- Supply Voltage [V] AC: 24 V
- Type: AK-PC 783A
- Part Number: 080Z0193
