Programming my fan to be dependant on both heat and time of day

[Ricky]

Hello,


I have a tank in a room where I also run an exhaust fan to pull out any warm humid air. What I am trying to do is have the fan run on/off every 30 minutes; unless the temperature is above the maximum for that set time - in that case I want the fan to stay on. I need some help... How do I do this? See below what I have now.


The exhaust fan currently runs on an on/off cycle every 30 minutes:


Name: FishFan_3 (Outlet #3)
Fallback OFF
OSC 000:00/030:00/030:00 Then ON


I have my heaters running on 2 cycles depending on the time of day by using 2 virtual terminals:


Name: FishLight_1 (Outlet #1)
Fallback OFF
Set OFF
If Time 06:30 to 00:30 Then ON
If Fish_T > 85.0 Then OFF
Min Time 030:00 Then OFF


Name: FishHeat_2 (Outlet #2)
Fallback OFF
Set OFF
If Output FishHeat_AM = ON Then ON
If Output FishHeat_PM = ON Then ON


Name: FishHeat_AM (virtual)
If Output FishLight_1 = ON Then ON
If Fish_T < 78.0 Then ON
If Fish_T > 80.0 Then OFF


Name: FishHeat_PM (virtual)
If Output FishLight_1 = ON Then OFF
If Fish_T < 70.0 Then ON
If Fish_T > 72.0 Then OFF

[Sleepydoc]

I'm not totally clear on what you're trying to do, but in general, for the fan outlet you can program it like this:

Outlet Vent_Fan
Fallback OFF
OSC 000:00/030:00/030:00 Then ON
If temp > 85 then ON

The last statement should override the OSC statement and turn the outlet on regardless of where it is in the OSC cycle.

If you want to have different criteria for different times of the day, you can set up virtual outlets:

Virtual outlet Day_Temp
If Temp > 85 Then ON
If Time 22:00 to 06:30 Then OFF

Virtual Outlet Night_Temp
If Temp > 80 Then ON
If Time 06:30 to 22:00 then Off

Outlet Vent_Fan
Fallback OFF
OSC 000:00/030:00/030:00 Then ON
If Output Day_Temp ON then ON
If Output Night_Temp ON then ON