will this program work?

[Bugzme]

Any comments would be appreciated!
A1 = MH1
A2 = MH2
A3 = VHO
A4 = CO2
A5 = OZO
A6 = REF
A7 = FN1
A8 = HET
A9 = PM1
A10 = KAL


If time > 10:00 then MH2 on
If time > 19:30 then MH2 off
If time > 1200 then MH1 on
If time > 1900 then MH1 off
If time > 0930 then VHO on
If time > 2200 then VHO off
If ozone is < 300 then OZO on
If ozone > 350 then OZO off
If ph < 7.8 CO2 off
If ph > 7.8 CO2 on
If time > 2030 then REF on
If time > 0900 then REF off
If temp > 79.5 then FN1 on
If temp < 78 then FN1 off
If temp < 78.5 then HET on
If temp > 79 then HET off
If temp > 80.5 then MH1 off
If temp < 79.8 then MH1 on
If time < 00:00 then PM1 on
If feed cycle then PM1 off
If PH > 8.15 then KAL off
If PH < 7.83 then KAL on
Max change 010M then MH1off

[clp]

Delete this line:
If temp < 79.8 then MH1 on

It is going to make MH1 come on whenever the temperature drops below 79.8.


Your temperature control statements overlap each other. Something like this would be better:

If temp > 79.5 then FN1 on
If temp < 79.0 then FN1 off
If temp < 78.5 then HET on
If temp > 79.0 then HET off

Curt

[Bugzme]

Thanks I'll put it in today! Anyother suggestions would be appreciated.

[Aquaduck]

You may want to put some hysteresis on your pH.

You have:
If ph < 7.8 CO2 off
If ph > 7.8 CO2 on
If PH < 7.83 then KAL on

Consider:
If ph < 7.84 CO2 off
If ph > 7.85 CO2 on
If pH < 7.83 then KAL on

[Bugzme]

Thanks that makes alot of sense also. Keep em coming! I need all the help I can get.

[Sparkss]

I am tagging along too, will have my unit tomorrow and be able to join in the fun.