TEKMAR 304P FOUR ZONE SWITCHING RELAY WITH PRIORITY

The Tekmar 304P Four Zone Switching Relay connects up to four thermostats and operates circulators to provide heating to a zoned hydronic heating system. Zone 1 has optional priority over zones 2 through 4 and can be used to provide heat to an indirect domestic hot water tank. The Tekmar 304P Four Zone Switching Relay includes optional exercising to prevent circulator seizure when not in use and optional post purge operation of the last operating zone to maximize energy savings. The Tekmar 304P Four Zone Switching Relay provides a Room Response signal to modulating condensing boilers to optimize comfort while improving boiler efficiency.