HVAC interview with Michael Kerrigan from Hyper Enginnering

[biggmann118]

Hey, Dr. Z I just wanted to tell u we really appreciated the shout out and keep up the good work, I learn a lot from you, your helping me out in my career

[DrZarkloff]

@biggmann118 Cool. Thanks for watching.

[DrZarkloff]

@biggmann118 Thanks. Keep up the good work.

[TheControlsFreak]

Good video DrZ... I think one of your soft starts was too close to your camera though... I hear a whining noise in the audio. ;)

[DrZarkloff]

@TheControlsFreak My computer had a hard time rendering the video. Sorry for the poor audio.

[TheControlsFreak]

@DrZarkloff No worries, just giving ya a hard time. My computer lately is also just slow as all get out when it comes to making videos from multiple pieces of footage. Looks like the. Next computer upgrade is around the corner. Prolly about $500-$600 worth. :D

[pianomaestrostudio]

Hi Dr. Z,

Thanks for having a customer rap. on the phone.

I forgot to ask a question, perhaps you could answer it for me.

Would the soft start, one installed, reduce the customers electric bill?

Thanks in advance,

John

[DrZarkloff]

@pianomaestrostudio The soft start is supposed to make the motor/compressor more energy efficient on start ups.

[yllekr123]

Those WERE some good answers to my questions. I worked for 40 years in watewater and as I was retiring we were converting to soft starts on all of our pumps, and air compressors. Didn't stay long enough to find out how well they were working. I didn't want to stay any longer. The main reason for converting was we were trying to stop big spikes in power consumption. Thanks for this video.

[DrZarkloff]

@yllekr123 Sounds like a good solution especially if all of the motors were energising at the same time.

[yllekr123]

@DrZarkloff Most of the pumps were 500hp. The blowers for the activated sludge were 2500hp.You get just two pumps starting at the same time plus a blower, power consumption really hit a spike. The way we were charged is between certain hours which were 6am to 9pm we were billed at the rate of the highest spike for that day. Flow always picks up around 9am and usually did not drop unitl after10 at night. Sequencing of equipment coming on was planned as well to reduce costs.

[DrZarkloff]

@yllekr123 Zowie! that's some really big stuff starting all at once.

[blissJesus1]

Dr. Z, Some A/C package units have 2 whips going to them, and some have only 1. For the unit that only has 1 whip, the heat kit takes 60 amp breaker(10Kva), but what about the compressor?

[DrZarkloff]

@blissJesus1 Residential systems will take either a 30 or 40 amp breaker, depending on the tonnage of the system.

[CorbyStarletCj1]

A good Aussie product and company :)

[lancaster4314]

Also waiting for the 60hz 460 3ph