Temperature Differential Controller

Following Differential Temperature Controllers are offering maximum operating efficiency and flexibility to effectively manage today's innovative thermal energy systems. Our products are designed to handle most differential temperature control functions for operation of swimming pool heating, domestic water heating, and sophisticated space heating and cooling. SMT 400 is an affordable and smart energy manager system.

Principle of Operation:

The collector sensor (C), positioned at the solar collector, picks up the rise in temperature. The return sensor (R) is  positioned such that it measures the temperature of the heat transfer liquid returning to the collector. The difference between these two temperatures is referred to as Delta T (T). When T is set to recommended setting, the collector temperature (C) must rise at least by T degrees above the return temperature (R) before the pump will operate.

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Analog Differential Controller

USDT 2005 is an Analog Temperature Differential Controller. Its installation and operation is extremely simple
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Retail Price $ 139.00

 

USDT 2005 serves also as a Boiler Temperature Controller in its BOILER (L) operational mode
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Retail Price $ 139.00

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Boiler Temperature Controller

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Universal Differential Controller

USDT2004 is designed for North American market utilizing over 25 years solar industry experience
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Retail Price $ 159.00

 

 

 

24 Volts Differential controller for Off-Grid applications
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Retail Price No Longer Available

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Low Power
Differential
Controller

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USDT 3002

The USDT 3002 controller has inputs for three temperature sensors. It controls two pumps.
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Retail Price $ 299.00

The SMT 100 Differential controller offers the facility to maximize the energy gain from the solar system.
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Retail Price $ 299.00



Differential Controller with Auxiliary Relay
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USDT 2004

USDT 2004 calculates energy collection (or consumption) by multiplying the flow volume by the difference in water temperature between the supply and return lines and displays the results on an its LCD window.
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Retail Price $ 159.00

The SMT 400 Differential controller serves also as an energy monitoring and management system. In addition to solar system control, it monitors and records the system performance in its internal memory. These are then displayed in graphical form. In addition, it shows the total monthly energy gain for the last six months in the form of a histogram.
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Retail Price $ 619.00

 

Differential
Controller
And Recorder

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Differential Controller with a PC Link
The advanced SMT 500 solar controller offers all SMT 400 capabilities and can be manipulated by a PC via a serial port. Its data bank can be transferred to a PC and word processor.
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Retail Price No Longer Available

The Pump Control Unit is a compact unit containing all the necessary fittings for easy installation.
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Retail Price $850.00

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Pump Control Unit

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Thermo Technologies
Solar@ThermoTechs.com

9009 Mendenhall Court
Suite E
Columbia, Maryland 21045
Voice: (410) 997-0778        Fax: (410) 997-0779