Fastest UFH actuators?
Currently I have have a standard (22mmm thread?) 230 VAC thermal actuator that turns on or off the return from the UFH manifold, as a part of the heating /cooling comtrol system. This actuator is a NC one, that opens when 230 VAC is applied. We have a minor problem in that when there is a call for heating or cooling there is a delay before this valve opens. This doesn't matter in heating mode, as the ASHP can unload into the buffer tank, but in cooling mode the only load is the UFH, and becau
@JSHarris
Wunda just supplied me with a new manifold for a customer to replace the mess that some goon fitted. They recommended the Salus auto balancing actuators which open with stepper motors, a lot quicker than the wax heated ones. Literally open to closed in a few seconds.
Manufacturers patter
Wundas patter and cost
These have a pair of capillary wires, one for flow and one for return, to sense temp differentials and balance accordingly. Under max flow I'd
