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+--- Thread: Air conditioning (/showthread.php?tid=4096)
Air conditioning - Danny - 17.06.2022
Dear readers,
I am looking for the following:
I have an air conditioning control but when the desired temperature is reached the fan continues to run.
now I want to switch off the air conditioning completely on the basis of the desired temperature and the current temperature and also on again with a hysteresis.
Desired temperature 5/2/14
Current temperature 5/1/14
air conditioning on off 6/1/0 1 byte object and must have a 0 for off and a 3 for heating and 9 for cooling
Can someone please help?
RE: Air conditioning - RomansP - 17.06.2022
Hello, here is a script, you can make it resident.
Code:
summer = grp.getvalue('6/1/1') -- boolean if '0' is winter, if '1' is summer
winter = not summer
current = grp.getvalue('5/1/14')
setpoint = grp.getvalue('5/2/14')
running = grp.getvalue('6/1/0') ~= 0
hysteresis = 0.5
value = nil
if (running and summer) then
if current < (setpoint - hysteresis) then
value = 0 -- off
end
elseif (summer and current > (setpoint + hysteresis) ) then
value = 9 -- cooling
end
if(running and winter) then
if current > (setpoint + hysteresis) then
value = 0 -- off
end
elseif (winter and current < (setpoint - hysteresis) ) then
value = 3 -- heating
end
if value then
grp.write('6/1/0', value)
end