Part of the 324 Series

Ordering Code: 324

UPC: 779655032401

tN2 Zone Expansion Module, Four Zones, Cooling and Fan


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  • tekmarNet (R) 4 compatible
  • Only requires 2 wires per zone
  • CSA C US Certified for use in USA and Canada
  • Four zone valves or zone pumps
  • For use with tekmarNet (R) 2 thermostats only
  • Time delay for thermal motor zone valves
Agency Approvals CSA C US, meets Class B: ICES & FCC Part 15
Ambient Conditions Indoor use only, 32 to 113 degrees F (0 to 45 degrees C), RH less than or equal to 80 percent to 88 degrees F (31 degrees C), down to 50 percent above 104 degrees F (40 degrees C), Altitude less than 6560 ft. (2000 m), Installation Category II, Pollution Degree
Control Type Microprocessor control, this is not a safety (limit) control
Dimensions 3-5/8" H x 5-3/8" W x 9/16" D (92 x 137 x 14 mm)
Power Supply Provided by interconnected tekmarNet Zone Manager
Relay Cool and fan relays 24 V (ac) 2 A
Zone Group Pump Relay 115 V (ac) 5 A
Zone Power 115 V (ac) plus / minus 10 percent, 60 Hz, 12 A max
Zone Relay 115 V (ac) 5 A
Zoning - Thermostat Type t2 Zone Expansion Module