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Search took 0.01 seconds. Search: Posts Made By: jeff5may

Forum: Geothermal & Heat Pumps

12-25-17, 10:15 AM

Replies: 15

A better defrost for heatpumps

Views: 9,574

Posted By jeff5may

Nono, some frost formation isn't a bad thing....

Nono, some frost formation isn't a bad thing. Especially when the outside temperature is below freezing, the mere presence of frost in small to medium amounts is a good indicator that the heat...

Forum: Geothermal & Heat Pumps

12-06-17, 10:21 AM

Replies: 15

A better defrost for heatpumps

Views: 9,574

Posted By jeff5may

The mini split units also have temperature...

The mini split units also have temperature sensors indoors. Usually there is one sensor that reads indoor ambient temperature and one that reads heat exchanger temperature. In cooling mode, the hx...

Forum: Geothermal & Heat Pumps

12-03-17, 10:31 PM

Replies: 15

A better defrost for heatpumps

Views: 9,574

Posted By jeff5may

Most all of the defrost algorithms I have seen...

Most all of the defrost algorithms I have seen that actually work reliably are based on Delta T. The generic boards I've employed and pretty much all of the defrost control boards in split systems'...

Forum: Geothermal & Heat Pumps

01-26-17, 08:18 AM

Replies: 15

A better defrost for heatpumps

Views: 9,574

Posted By jeff5may

Please please help figure this one out! AC hacker...

Please please help figure this one out! AC hacker and I started a thread awhile ago to try to get together a simple general purpose heat pump controller. A lot of versions became the outcomeb rather...

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