Aqua Tempo Super II
20 201709
Midea Aqua Tempo Super II
Service Manual
5 Normal Operation Control
5.1 Component Control during Normal Operation
Table 3-5.1: Component control during heating operation
Control functions and states
Controlled according to load requirement
Controlled according to air side heat exchanger pipe
temperature and discharge pressure
Electronic expansion valve
Position (steps) from 0 (fully closed) to 480 (fully
open), controlled according to discharge superheat
and compressor frequency, and use suction
temperature, air side heater exchanger temperature,
discharge temperature to modify the control.
Solenoid valve (oil balance)
Water side heat exchanger heater 1
Water side heat exchanger heater 2
Electric auxiliary heater
Controlled according to ambient temperature
Table 3-5.2: Component control during cooling operation
Control functions and states
Controlled according to load requirement
Controlled according to air side heat exchanger
refrigerant total outlet temperature (Tz/7)
Electronic expansion valve
Position (steps) from 0 (fully closed) to 480 (fully
open), controlled according to suction superheat,
water inlet temperature and compressor frequency.
Solenoid valve (oil balance)
Water side heat exchanger heater 1
According to water side heat exchanger
anti-freezing temperature (Taf)
Water side heat exchanger heater 2
Electric auxiliary heater