Fallback ON
If Tmp < RT+-0.2 Then ON <-- This would turn on the heater when Temp is at 77.3 if seasonal temp in local chart is set at 77.5
Not quite. It would turn on at 77.2.
Defer 001:20 Then ON <-- defer for a minute and 20 seconds before turning on.
Yes
If Tmp > RT+0.3 Then OFF <-- this would turn it off if temp is at 77.8
77.9.
If Time 04:00 to 15:59 Then OFF <--- this would mean the heater is off from 4am to 4pm.
Yes, but only if one of the next commands isn't true.
If Tmp < RT+-0.2 Then ON <--- WHY did you repeat this command here??? I don't understand the need
It's not a repeated command in mine. It is 0.1 degree lower. And it is positioned after the If Time command on purpose. What this does is turn on the heater if the temp drops too low during it's 'off' or 'secondary function' time. So if the other heater is already going, but not quite keeping up, this heater will kick in. And then the same thing happens with the other heater during the other half of the day.
If Output Heater1On030 = ON Then ON <-- this would turn on heater 2 when heater 1 is on for 30 mins
If heater 1 is still running after 30 minutes (obviously struggling), heater 2 will kick in.
If Output HeatersOn045 = ON Then OFF <-- this would turn off both heaters if they run for 45 mins
Safeguard; should never happen under normal use. If so, my house is too cold! (or one of them has failed.)
If Tmp > 78.7 Then OFF <-- is this for backup or emergency if the heater is stuck on???
Yes
If Tmp < 70.1 Then OFF <--- why this???
When a temperature probe fails, if often gives an impossibly low number. Depending on whether your heaters have internal thermostats and if so, what they're set to, you can cook a tank if the feedback loop has failed.
If Output RetPump_2_3 = OFF Then OFF <--- if return pump is off then off.
Yes
If LD_SMP CLOSED Then OFF <-- if leak turn off
Yes I like to combine all my leak detectors into one VO.
If LD_STN CLOSED Then OFF <--- if leak turn off
Yes
If Power Apex Off 001 Then OFF <---- I put this in so I don't overload my UPS.
Good idea.
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