TTBOMK it standard to use a rigid linear position sensor:
However, there are a variety of optical sensor available also. The KA Laser Ride Height sensor is pretty expensive, but others are very inexpensive if a bit non-linear. This would include several sharp models such as this one...
I'd like to do a boiler/chiller setup for residential.
-1 mod-con boiler with outdoor reset.
-1 chiller possibly with VRV modulation
-4 4-pipe AHUs
-Steam humdifier(s)
Ideally the 4 zones would each provide:
-cooling,
-cooling with dehumidification,
-dehumidification,
-dehumidification with...
