What causes pressure to increase

[Rcgop]

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Here is an example of a HA not increasing the pressure and an example of a flow limit event causing an increase in pressure. Why?

What causes the flow limit events? I have many spikes and cannot figure what is causing them.

[palerider]

the short answer is "because it's programmed to behave that way".

flow limitations: https://www.youtube.com/watch?v=-gie2dhqP2c
(and other things)

[Rcgop]

the short answer is "because it's programmed to behave that way".

flow limitations: https://www.youtube.com/watch?v=-gie2dhqP2c
(and other things)

Thanks palerider,
While the short answer, it's the best. I think everyone should view the YouTube video before asking too many questions

Thanks