The KF-510 is a well sized robust design, with 10 zones as standard, a volt free boiler interlock and an adjustable pump delay, this product adds better performance capability to your underfloor heating system. Integrated connections for two independent valves, typically hot water cylinder and 1st floor radiator circuits , making heating controls installation easier and faster. Typically these can be two or three port zone valves.

Zone 10 has a dedicated dip switch to opt the circuit out of operating the secondary circulation pump, beneficial for radiator circuits not needing the secondary pump.

With top thermostat and bottom actuator generous cabling entries, the installation is less crowded and easier to wire up.

With LED lit circuits visible for power, boiler, pump and one of the two additional valves. When cover is closed it makes for simpler troubleshooting and resolution.