The D21-TS electronic controller has been designed to take full advantage of our patented Air-Flow Sensor which modulates the heater’s capacity according to the quantity of air flowing through the heater by responding to the radiant heat of the elements even at very low CFMs. With normal airflow the controller will operate at full power. When the airflow drops below the minimum airflow, the controller will still operate but at reduced power. It will also safely shut down the heater in case of a total loss of airflow. D21-TS controllers may be used to drive up to 4 SSRs. The maximum load is limited to the capacity of the Solid State Relays. In cases with smaller loads, consider the D21-T with a single output and the D22-T equipped with two outputs effectively doubling the capacity of the D21-T. The ‘T’ versions of controllers such as the D21-TS are exclusively controlled by a thermistor type thermostat such as our RT (room thermostat) and DT (duct thermostat) as well as our integrated Duct Sensor. Thermolec’s RTs and DTs are available in a variety of temperature ranges. Please order the proper range for your application.
AcuSteam High Limit cutoff Thermolec’s exclusive ACE SENSOR monitors the conditions in the duct to prevent excessive buildup of humidity. It is included with every AcuSteam Pro and may be used with the residential AcuSteam as an option. The high limit cutoff is adjustable from 8...Learn More
Electronic Sequencer The TH34 electronic sequencer has been designed as a compact solution to replace bimetallic mechanical sequencers to split loads into smaller delayed sequences. When the thermostat contact closes, Q1 is instantly activated and then Q2 to Q4 after approximate...Learn More
2060 Lucien Thimens
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