The kit is supplied as a single zone control system. One thermostat, via the wiring centre, activates the boiler and the circulating pump at the manifold when more heat is required.
The system is also adaptable to multiple zone control, where one room or a group of rooms can operate on separate temperature controls. Actuators, which are available as an accessory, can be added to the return manifold by removing the white cap circuit isolating valves and fitting actuators in their place. These actuators can then be wired through to separate thermostats via a wiring box, either one or several actuators per thermostat. Each thermostat then activates the boiler and circulating pump, and opens the associated actuators, to supply heat to that zone.