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Thread: Temp based on time

  1. #1
    New User
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    Temp based on time

    Hello,

    I keep my tank temp at 25 degrees. This is controlled by 2 heaters and a chiller. My lights are on for 12 hours from 9 to 9.

    I would like to run 2 different temp based on time of day. When my lights first go on at 9 I would like to run my tank a few degrees cooler at 22 degree's for 2 hours then go back to my regular temp of 25 degrees.

    Is this possible? Does anyone know how to program such a thing?

  2. #2
    Frequent Contributor zombie's Avatar
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    You have to use VOs to do this.

    DayTemp
    If Temp < XX Then ON
    If Temp > YY Then OFF
    If Time XX to XX Then OFF

    NightTemp
    If Temp < XX Then ON
    If Temp > YY Then OFF
    If Time XX to XX Then OFF

    Heater
    Set OFF
    If Output DayTemp = ON Then ON
    If Output NightTemp = ON Then ON

    You might be an engineer if...You have no life and can prove it mathematically.

  3. #3
    New User
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    What is a VO?

  4. #4
    Frequent Contributor zombie's Avatar
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    Dec 2013
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    13,176
    Virtual outlet.

    You might be an engineer if...You have no life and can prove it mathematically.

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