Comments on: HVAC Amp Draw

By: scottphys

scottphys — Thu, 28 Jan 2010 06:42:23 +0000

So are these typical readings for a working compressor? ~ 50A max on startup and ~ 8.5A run?
Thanks for the video. Great job as usual.

By: DrZarkloff

DrZarkloff — Thu, 28 Jan 2010 06:24:43 +0000

Yes. I know 50A seems high, but it’s only that high for less than a second.

By: MarkFromHawaii

MarkFromHawaii — Thu, 28 Jan 2010 05:59:40 +0000

Do you ever get complaints about light flicker due to compressor inrush current and the resultant voltage sag? This is one of the issues we deal with quite a bit over here. I hear that Rheem is partnering with a company that makes an electronic soft start as a retrofit package to address this issue. Cheers.

By: DrZarkloff

DrZarkloff — Thu, 28 Jan 2010 05:58:35 +0000

Thanks for the info. I’ll have to check that out.

By: quickfreeze45

quickfreeze45 — Thu, 28 Jan 2010 05:49:32 +0000

Good old Bard units

By: DrZarkloff

DrZarkloff — Thu, 28 Jan 2010 05:15:48 +0000

I actually like Bard units. They’re easy to install just about anywhere.

By: astranine

astranine — Thu, 28 Jan 2010 04:28:52 +0000

Excellent video! Knowing and troubleshooting the electrical side of HVAC is just as important as knowing the refrigerant circuit.

By: DrZarkloff

DrZarkloff — Thu, 28 Jan 2010 03:56:05 +0000

So very true. Thanks.

By: falfighter

falfighter — Thu, 28 Jan 2010 03:52:21 +0000

electric motors will draw 5 to 7 times the full load amps at start up. This compressor is running normal.

By: quickfreeze45

quickfreeze45 — Thu, 28 Jan 2010 03:39:33 +0000

I install alot of them in the telephone buildings. The good thing about them is that everything is outside and condensation can not get on there equipment