How to connect thermostat

Discussion in 'General Electronics Chat' started by SamLawPk, May 14, 2015.

  1. SamLawPk

    Thread Starter New Member

    May 14, 2015
    2
    0
    Hi, If I have a Digital Thermostat Module Model XH-W1209 . How to connect it with a 12v 10a thermoelectric module TEC-1 12710 , 12V 0.1A fan to a 12V 9A dc supply ?
     
  2. Dodgydave

    Distinguished Member

    Jun 22, 2012
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  3. Stuntman

    Active Member

    Mar 28, 2011
    181
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    On your XH -1209, the K0 and K1 terminals are basically a switch (they are the contacts from a relay controlled by the thermostat).

    Knowing this, you should be able to hook up your thermo module and fan like this:
    upload_2015-5-14_12-0-12.png
    Now, if the 12V supply is ONLY powering the peltier and the fan, you could actually hook the supply up to both of the devices, then simply route the power for the 12V supply through the thermostat.
     
  4. SamLawPk

    Thread Starter New Member

    May 14, 2015
    2
    0
    Thanks for helping. I am new to those thing. I understand the part that you have drawn, but how to route the 12v supply through the thermostat? Can I do it like the way Dodgydave provided link, just as the 12v connection?
     
  5. Reloadron

    Active Member

    Jan 15, 2015
    963
    232
    Yes, as Stuntman drew it out. K0 and K1 are the open relay contacts controlled by the thermostat.

    Ron
     
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