Part of the 303V Series

Ordering Code: 303V

UPC: 779655030320

Zone Valve Control, Three Zones with Priority


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tekmar Home

  • CSA approved
  • RoomResponse (TM) signal, compatible with all low voltage thermostats
  • Two spare fuses included
  • Fuses protect transformers and pumps
  • LED for each zone, priority, end switch and RoomResponse (TM), away signal shared between tekmar thermostats
  • Four ground screws, Top, bottom and back conduit knockouts
  • Compatible with 2, 3 and 4-wire zone valves, unlimited zone expansion
  • Zone priority, priority override
  • Post purge, LED for each zone, priority, end switch and RoomResponse (TM)
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" H x 10-11/16" W x 2-3/8" 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 40 VA at 24 V (ac), expandable to 80 VA with additional transformer M3069 (sold separately)
Zone Valve End Switch 24 V (ac)
Zone Valve Outputs 24 V (ac)
Zoning - Thermostat Type Zone Valve Control