showing the various components - Upper and lower manifold with pipework, High
temp cut-out, pump, actuators, thermostatic valve, temp sensor and lockshield.
||The upper manifold
showing the four flow regulators. These control the speed that water travels
through each individual loop through the floor. You can see each UNIPIPE to
the underfloor loops terminating with compression fittings.
||The lower (return)
manifold showing the four actuator heads. These open and close as zones call
for heat. Also shown - the UNIPIPE loops returning to the manifold from under
||The wiring centre.
This neat convenient unit processes signals from each zone thermostat to
open/close actuators and command the boiler, pump and two-port valve.