Economizer: first 48 hours uptime in pictures

[Vadim Tkachenko]

Hello lurkers,

One picture is better than a thousand words - see below.

Full legend is hidden for privacy, so here's the short breakdown:

- Top red: indoor temperature in the controlled zone

- Bottom red: control signal to the actuator (currently AEON Labs ZW096 controlling AC Infinity S6)

- Blue: economizer target temperature (cooling mode); changeover delta is 3C, not on the chart

- Green: ambient temperature

- Orange: raw control signal on the economizer output, you can guess how it will be further used to improve control quality.

With Arizona just having the summer, the winter, and nothing in between, I almost didn't catch the top side of the economizer triggering except for a small period around 1800 today (the rightmost "on"), but this chart shows quite obviously how it works on the bottom side.

Stay tuned, more to come.

--vt