Installing thermostat in thermoelectic cooler

Discussion in 'The Projects Forum' started by ger32, Jul 5, 2010.

  1. ger32

    Thread Starter New Member

    Jul 5, 2010
    14
    0
    My project is this: installing a temperature-control in a thermoelectric cooler
    in a 1987 VW Westy camper with 130W solar panel. At the moment, I am
    looking purchasing this tempcontrol unit at:

    http://store.antx.com/digitaltemperatureswitch.aspx

    to install in my Koolatron P75 thermoelectric cooler shown here:

    http://koolatrononline.stores.yahoo.net/koolatron-p75-kool-kaddy.html

    Please note on the ANTX site--"Relay: 8A SPDT relay can drive motors,
    compressors, fans, etc"

    My Koolatron cooler is 4.5 amp DC.---would the 8 amp power source from
    the tempcontrol be compatible with the 4.5 amp power draw?
    I have very little expertise in electronics, so I need all the advice I can get. Is
    there another thermostat that I should be looking at? BTW, Koolatron
    provides the option of buying their coolers WITH thermostat, but at a price
    that I cannot afford. Any mechanical advice on installation--installation of the
    probe, etc.---would be appreciated.
    I am a 77 year old retiree in northern Alberta Canada happy to have found
    this site yesterday and hoping to learn a whole lot of new things.

    TIA,
    Gerald
     
  2. ger32

    Thread Starter New Member

    Jul 5, 2010
    14
    0
    hope I can now
     
  3. Dx3

    Member

    Jun 19, 2010
    87
    7
    Ok...The controller can switch up to 8 amps. It does not supply any amps. I expect the amps will come from your solar collector.

    I don't see any reason why this combination won't work, except I don't know the voltage rating of the solar cells. You wouldn't want the solar cells to hurt the cooler by trying to push 20 or 30 volts through it. Perhaps adding a 12 volt battery to smooth out the voltage might be required?

    Please tell more about the solar cells.
     
  4. ger32

    Thread Starter New Member

    Jul 5, 2010
    14
    0
    Thanks for your reply.
    Sorry I should have stated that the PV was charging a battery
    that in turn will power the thermostat. Q--the batteries power
    the thermostat that power the cooler, right?
    Also--I put the probe thru a hole that I drill and seal, and leave
    the control unit outside the cooler right?
     
  5. Dx3

    Member

    Jun 19, 2010
    87
    7
    You seem to have everything under control.
     
  6. ger32

    Thread Starter New Member

    Jul 5, 2010
    14
    0
    Now I feel maybe I can do it.
     
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