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304P | 4 Pump Switching Relay | Tekmar

Brand: TekmarSKU: 304P

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Overview Details for 304P

4 Pump Switching Relay

The Switching Relay 304P 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 304P 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 304P provides a RoomResponse^™ signal to modulating-condensing boilers to optimize comfort while improving boiler efficiency.

Features

Away signal shared between tekmar thermostats, four ground screws
Priority override, pump exercising
CSA approved
Unlimited zone expansion, zone priority
RoomResponse^™ signal, compatible with all low voltage thermostats
Two spare fuses included
Post purge, LED for each zone, priority, end switch and RoomResponse^™
Top, bottom and back conduit knockouts
Fuses protect transformers and pumps