In one case, there are Five no 40 Hp ref. units - monoblock type for a cold store of size 50 x 35 x 12m. The cold store has racking inside.

The ref units are controlled by remote panel. Where to fix up the temp thermostat sensor. All five units are controlled through One T/Stat.

Other point is sensors in parallel / series & their behaviour.

Typically the sensor is located behind the cooling coil ( return air temperature)

Experts comments please