Acson international A5MAC 210D, Technical Manual

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Outstanding Performance
A5MAC-D series features leading-edge scroll technology and branded accessories which go through our stringent
reliability and compatibility test. Equipped with efficient scroll compressors and precise electronic expansion valves.
These units feature high EER and COP, especially at partial loading.
Intelligent Control System
A5MAC-D features user-friendly intelligent control system. Microchip and large-scaled LCD display are used to
make the control easy.
■ Group control: One single controller can control a group made up by one master unit and maximum 15 slave units.
■ BMS: A5MAC-D is standard with Modbus protocol and ports for BMS, can support maximum 100 groups modular
units, one group can support one master unit and maximum 15 slave units (optional).
Basic Operating Mode
■ Cooling
■ Heating
Parameter Setting
■ Real time setting
■ Weekly timing on/off (two on/off per day)
■ Chilled water inlet temperature
■ Hot water inlet temperature
■ Anti-freezing/defrost temperature setting
■ Defrost point A/B temperature setting
Parameter Display
■ Running status display
■ Setted inlet temperature
■ Actual inlet temperature
■ Timing point
■ Anti-freezing/defrost temperature
Fault Alarm And Protection
■ 13 protections and fault alam functions
■ Indoor controller lock
Defrost Mode
■ Auto defrost
■ Mannual defrost
Memory Function
■ Backup battery for realtime clock
■ Customized parameters preservation after
power failure
Other Functions
■ Error log inquiry
■ Average compressor worn time
■ Remote on/off
■ Water system two-way valve control
■ Auxiliary electric heating
NOTE:
■ THE LENGTH OF COMMUNICATION WIRE BETWEEN THE MASTER UNIT AND THE WIRED CONTROLLER IS 40M. THE LENGTH OF
COMMUNICATION WIRE ATTACHED TO THE SLAVE UNIT IS 5M.