[TRNSYS-users] control problem for type 927

[Emre Arpaci]

In short, what ı want is this the heat pump will work if the greenhouse
temperature is below 8 degrees, If the greenhouse temperature is above 8
degrees, the fan coil and the heat pump will stop.

Emre Arpaci <emrearpaci10 at gmail.com>, 17 Ağu 2019 Cmt, 16:44 tarihinde şunu
yazdı:

> Hi trnsys users
> I have a new problem. :)
>
> I m heating a greenhouse with a heat pump.I m currently trying to control
> this heat pump. I want to work  this heat pump when temperature is below 8
> degree and stop that heat pump when temperature rises 8 degree in the
> greenhouse. To make it I used five stage room thermostat. I connected
> grenhouse temp to monitoring temperature of thermostat and entered 8 degree
> value for 1 stage heating setpoint. But I got this error messagas in the
> figure.
> I connected control signal for 1 st stage heating in the thermostat to fan
> coil and heat pump as you see in the picture.
>
> Now how can ı control to start and stop of this heat pump as I
> want. Because I don't want this heat pump to work for 24 hours. I tried the
> differentual equation control but I got the same error messages.
>
> I added also my deck file.
> Please help me.
> Thanks
> Regards
>
>
>
>
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