Basic Conditions Of Operating The Wired Controller; Main Functions Of The Wire Controller; Control And Protection Function Of Unit - Midea Aqua Tempo Super Series Technical & Service Manual

Aqua Tempo Super Series air cooled scroll chiller unit (50Hz) MCAC-ATSM-201606
Use PQE connect with each other when several wired-controllers are parallel.
The wiring procedure and principles are shown in the figure:
16.2.7. Basic conditions of operating the wired controller：
1) Applicable range of supply voltage: Input voltage is 10V AC.
2) Operating environment temperature of wired controller: -10° C~+43° C.
3) Operating RH of wired controller: RH 40%~RH90%.
16.2.8. Main functions of the wire controller as follows:
1) Touch key operation;
2) LCD displays operation parameters;
3) Multiple timer;
4) Buzzer prompt tone and alarm functions;
5) Real-time clock function.

16.2.9. Control and protection function of unit

The unit has the following protection functions:
1) Current cut-off protection
2) Power supply phase sequence protection
3) Protection for over-low suction pressure
4) Protection for compressor overcurrent
5) Protection for compressor overload
6) Anti-freezing protection
7) Protection for over-high discharge pressure
8) Protection for outlet and inlet water temperature
The unit also has other control functions:
1) Plug and play system
2) RS-485/TS232 Standard serial communication port
129