The Zone Valve Control 304V connects up to four thermostats and operates zone valves to provide heating to a zoned hydronic heating system. The 304V operates a system pump whenever a zone valve opens. Zone 1 can operate either a zone valve or a circulator to provide heat to an indirect domestic hot water tank with optional priority over zones 2 through 4. The 304V includes optional exercising to prevent circulator seizure when not in use, and optional post purge operation of the domestic hot water tank to maximize energy savings. The 304V provides a RoomResponse™ signal to modulating-condensing boilers to optimize comfort while improving boiler efficiency.
$201.26
each
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RoomResponse™ signal, compatible with all low voltage thermostats
Fuses protect transformers and pumps
Pump exercising, post purge
Four ground screws, top, bottom and back conduit knockouts
LED for each zone, priority, end switch and RoomResponse™, away signal shared between tekmar thermostats
Zone priority override
Specifications
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Number of Zones: 4
Voltage Rating: 115V
Type: Zone Panel
Series: V
Suitable For Use With: 2, 3 and 4-Wire Unlimited Zone Expansion Valves