Chiller and Seasonal temp

[DeadReply]

Hi

i use this code on my heater:
[Heater]
Fallback ON
Set OFF
If Temp < RT+0.2 Then ON
If Temp < RT+-0.2 Then ON

I want to use my chiller
which code i need to control all. if i want to use the seasonal temp too.
[Chiller]
Fallback ON
Set OFF
If Outlet Chiller = ON Then ON
If Time 21:59 to 12:29 Then OFF

or any config on chiller to do ? ex diferential temp..


thankss

 

[swearint]

[Heater]
Fallback ON
Set OFF
If Temp < RT+0.2 Then ON
If Temp < RT+-0.2 Then ON

One of the above highlighted lines is redundant as they both turn the heater ON. As for the chiller, there are a couple issues:

[Chiller]
Fallback ON
Set OFF
If Outlet Chiller = ON Then ON
If Time 21:59 to 12:29 Then OFF

The highlighted line does not make sense, and would likely cause an error. You have the outlet referring to itself. It should not be necessary to turn the chiller OFF over a period of time, if you have it respond to the desired temp.

I assume you want to control the temperature over a range centered on RT. If so, use this:

[Heater]
Fallback ON
If Temp > RT+-0.1 Then OFF
If Temp < RT+-0.2 Then ON

[Chiller]
Fallback ON
If Temp > RT+0.2 Then ON
If Temp < RT+0.1 Then OFF

So assuming that RT is 78F, the heater would come on at 77.7F and shut off at 78.0F. The chiller would come on at 78.3 and also shut off at 78.0F. This gives an operating range of 77.7F to 78.3F. There is no overlap of heater and chiller setpoints so they will not both be on at the same time.

Todd