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  Tekmar Mixing Expansion Module 444 - Variable Speed / Floating
Tekmar Mixing Expansion Module 444 - Variable Speed / Floating
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Tekmar Mixing Expansion Module 444 - Variable Speed / Floating

The Mixing Expansion Module 444 is designed to operate a mixing device within a hydronic heating system as part of a tekmarNet® control system. It is capable of controlling a mixed system pump and six optional outputs for mixing: a variable speed injection pump, a floating action actuator, or an analog 0-10 V (dc), 2-10 V (dc), 0-20 mA, or 4-20 mA signal.


  • Analog 0-10 V (dc) or 2-10 V (dc) output
  • Analog 0-20 mA or 4-20 mA output
  • CSA C US certified for use in USA and Canada
  • Powered 120 V (ac) system pump
  • Powered 24 V (ac) floating action output
  • Powered 24 V (ac) system pump output
  • Powered variable speed injection pump
  • Requires a tekmarNet® 4 system control


Control Microprocessor control. This is not a safety (limit) control
Packaged weight 1.1 lb. (500 g)
Dimensions 4-3/4" H x 2-7/8" W x 1-7/8" D (120 x 74 x 48 mm)
Enclosure White PVC plastic
Approvals CSA C US, meets Class B: ICES & FCC Part 15
Ambient conditions Indoor use only, 32 to 104°F (0 to 40°C), RH ≤92% to 104°F (40°C), and 50% above 104°F (40°C), Altitude <9840 ft. (3000 m), Pollution Degree 2
Power supply 24 V (ac) ±10%, 50/60 Hz, 4 VA standby, 56 VA fully loaded
System pump relay (front) 24 V (ac) 2A
System pump relay (back) 120 V (ac) 5A, 1/6 hp
Variable pump 120 V (ac) 2.4 A, internal overload circuit T2.5 A 250 V
Floating output 24 V (ac) 8 VA maximum, triac output, minimum 0.6 VA
Modulation output (voltage) 0-10V / 2-10 V (dc), minimum 10kΩ load
Modulation output (current) 0-20 mA / 4-20 mA, maximum 1kΩ load
Sensors NTC thermistor, 10 kΩ @ 77°F (25°C ±0.2°C) ß=3892
-Included Universal Sensor 082
Warranty Limited 3 Year Warranty

Current Literature

Product Submittal

Jan 2011 - Present


Installation & Operation Manual

Apr 2007 - Present


Job Record

Aug 2009 - Present


Wiring Brochure

Dec 2008 - Present


Part Number: 444

2 +$366.27

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