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Wiring a thermostat

What do ''comm'', ''satisfied'' and ''demand'' relate to on the wirin diagram. i am not using it in a conventional heating setup but a plant growroonm to maintan constant temp control of stand alone heater.
i know one must relate to live ,earth etc but which ones?

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  • b_dawood Dec 14, 2008

    1st of all many thanx 4 your reply

    i didnt mention i was in uk. i wired the live from the mains to the "demand" terminal no 2.

    i wired the live from the heater to the "common"terminal.

    I joined both earths (grounds) ( 1 from main , 1 from heater)together.

    again both neutrals were joined this time in jinction box; and another feed from this went to terminal "neutral"



    so far so good but am not an electrician and would luv any comments

  • Robert Cannon
    Robert Cannon May 11, 2010

    Howdy,

    Can you provide more information on the thermostat? A thermostat is a simple computer that doesn't necessarily follow live, neutral, and ground.

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Comm should be the common terminal/wire
Satisfied means that the unit is no longer calling for heat because the thermostats setting has been "satisfied" and has shut the unit off until the room is cooler and it is then "damanding" operation. This should bring the unit on. (when the thermostat is in "demand")

Posted on Dec 20, 2008

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From the patent: A two stage cooling system in which the first stage's cooling affect is transferred to the second stage through direct contact with an oil-like material. The oil-like material is cooled by direct contact with water which has been evaporatively cooled. The oil-like material is then utilized to cool the air stream prior to the second stage evaporative cooling. The use of an oil-like material in the first cooling stage of evaporative cooling allows a relatively dry air stream to be produced so as to fully capitalize upon the evaporative cooling affect of the second stage cooler.

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