TWO STAGE COMPRESSOR
Here, we have single fan speed and 2 compressors (Stage1 and Stage2). Whenever
there is less difference in the temperature stage 1 compressor have to switch on
and high difference in temperature, both stage and stage 2 have to switch on.
For example,
Case1 -Room temperature is 20 and set temperature is 18. In this case, stage 1
compressor should be enabled.
Case2 -Room temperature is 26 and set temperature is 18. In this case, both the
stage 1 and stage 2 compressor should be enabled.
Wiring details :