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...
A VRF can be more efficient regardless of how the condenser is cooled. The oversized condenser and heat exchanger helps; and there are fewer losses between cycles. Obviously a staged system does some of this itself.
For the delivery side, water capacitance and possible storage would mask any...
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...
- VRF is cheaper.
- VRF is more energy efficient than air cooled chiller plant.
- VRF is less efficient than water cooled chiller plant.
Since some chillers are VRV, how are the direct VRV to air systems more efficient?
If forced air is used for heating, how do you integrate with a distributed...
