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 > Coleman Mach No Time Delay

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otbiker

Kerrville TX

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Joined: 02/02/2005

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Posted: 01/15/13 05:45am Link  |  Print  |  Notify Moderator

2013 Winne ERA with a 13500 Coleman Mach Heat Pump. Controls on ceiling assembly only, no wall mounted t-stat.

Installing a hard wired surge protector that can time delay 15 or 136 seconds. Thought I'd test the A/C time delay to confirm. Ran the A/C, shut off the breaker, restarted to find the compressor restarted. Confirmed by using an ampprobe on the circuit. Immediately restarted with 10.6 amps.

I can easily set the surge protector to 136 second delay, but I'm really surprised the A/C doesn't have short cycle protection.

BTW, I suspect the compressor is a scroll, not a recip.


Marty & Martha in Kerrville

2013 Winnebago ERA

Bumpyroad

Virginia

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Posted: 01/15/13 06:00am Link  |  Print  |  Notify Moderator

otbiker wrote:

2013 Winne ERA with a 13500 Coleman Mach Heat Pump. Controls on ceiling assembly only, no wall mounted t-stat.

Installing a hard wired surge protector that can time delay 15 or 136 seconds. Thought I'd test the A/C time delay to confirm. Ran the A/C, shut off the breaker, restarted to find the compressor restarted. Confirmed by using an ampprobe on the circuit. Immediately restarted with 10.6 amps.

I can easily set the surge protector to 136 second delay, but I'm really surprised the A/C doesn't have short cycle protection.

BTW, I suspect the compressor is a scroll, not a recip.


I thought that that was one advantage of a multi-function surge protector, delayed restart for ACs etc. that would lead me to believe that none/most/some of the ceiling ACs do NOT have short cycle protection if they design a SP to protect them.
bumpy





dougrainer

Carrolton, Texas

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Posted: 01/15/13 06:24am Link  |  Print  |  Notify Moderator

Roof Mounted RV AC controls cannot have the time delay. The time delay is built into the upper AC control board that is used with wall tstats. There is NO reason to have a time delay on roof mounted tstats. WHY????? Unless YOU short cycle the tstat or turn On and OFF within a few minutes, there will be NO excess load on the compressor. It just takes about 3 minutes for the compressor to equalize. Doug

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