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305V

Tekmar_RoomResponse_Final_June9

Part of the 305V Series

Ordering Code: 305V

UPC: 779655030518

Zone Valve Control, Five Zones with Priority

 

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The Zone Valve Control 305V connects up to five thermostats and operates zone valves to provide heating to a zoned hydronic heating system. The 305V 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 5. The 305V 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 305V provides a RoomResponseTM signal to modulating-condensing boilers to optimize comfort while improving boiler efficiency.

Features

  • Compatible with 2, 3 and 4-wire zone valves, unlimited zone expansion
  • Two spare fuses included
  • LED for each zone, priority, end switch and RoomResponse (TM), away signal shared between tekmar thermostats
  • Post purge, LED for each zone, priority, end switch and RoomResponse (TM)
  • RoomResponse (TM) signal, compatible with all low voltage thermostats
  • Four ground screws, Top, bottom and back conduit knockouts
  • Zone priority, priority override
  • CSA approved
  • Fuses protect transformers and pumps
Specifications
Agency Approvals CSA C US
Ambient Conditions Indoor use only, 32 to 122 degrees F (0 to 50 degrees C), RH less than or equal to 90 percent non-condensing
Control Load 7 VA at 24 V (ac)
Control Type Microprocessor control, this is not a safety (limit) control
Dimensions 8-3/16 in H x 10-11/16 in W x 2-3/8 in D (208 x 271 x 60 mm)
Enclosure Material Cover: ABS plastic, Base: galvanized steel
Enclosure NEMA Rating NEMA 1
End Switch Relay Boiler, DHW 24 V (ac), 5 A
Fuses T5A 250 V slow blow, two spare fuses included
Mod Boiler Output1 0-10 V (dc) 500 ohms min load impedance
Mod Boiler Output2 4-20 mA 1 k ohms max load impedance
Power Supply 115 V (ac) plus / minus 10 percent, 60 Hz, 11 A
Pump Relay 230 V (ac), 5 A, 1/3 hp
Transformer 24 V (ac), 80 VA
Zone Valve End Switch 24 V (ac)
Zone Valve Outputs 24 V (ac)
Zoning - Thermostat Type Zone Valve Control

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