Watts Tekmar Zone Valve Control 306V

Zone Valve Control 306V

The Zone Valve Control 306V is a versatile system that accommodates up to six thermostats, efficiently managing zone valves to distribute heating within a zoned hydronic heating framework. Each time a zone valve opens, the 306V activates a system pump to ensure effective heat distribution. Notably, Zone 1 can control either a zone valve or a circulator, providing heat to an indirect domestic hot water tank with optional priority over Zones 2 through 6.

Key Features:

  • Supports compatibility with 2, 3, and 4-wire zone valves, offering unlimited zone expansion possibilities
  • Features zone priority settings and priority override functionality
  • Incorporates pump exercising and optional post-purge operation to optimize energy efficiency
  • Provides a RoomResponse™ signal tailored for modulating-condensing boilers, enhancing comfort and boiler efficiency
  • Compatible with all low voltage thermostats
  • Equipped with LEDs indicating status for each zone, priority, end switch, and RoomResponse™
  • Shares an Away signal among tekmar thermostats and features four ground screws for ease of installation
  • Offers top, bottom, and back conduit knockouts for flexible installation options
  • Includes fuses to protect transformers and pumps, with two spare fuses provided for convenience
  • CSA approved for reliability and safety assurance


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
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
Power Supply 115 V (ac) plus / minus 10 percent, 60 Hz, 11 A