Liquid receiver on a reverse cycle VRV system

[BradC]

Also the outdoor unit may record SST and SCT but if subcooling to fan coils is different then for a fixed EEV opening more or less rerigerant will be needed for the same amount of cooling. Some have a thermistor mid coil also for this reason.

That makes sense.

All the bolt-on EXV controllers I've seen take the temp and pressure at the outlet of the coil (as per convention) to determine superheat. Could you reliably determine superheat by simply measuring both ends of the coil? (with suitable qualifications about limited application to unrestrictive coils with low pressure drops)

Hope that helps.

Heaps. Cheers for that Andy.