Author Topic: Hvac student in need of some help  (Read 389 times)

Offline muffinman540

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Hvac student in need of some help
« on: March 21, 2017, 07:40:22 PM »
HI there, just wanted the opinion of people who are knowledgeable in the trade.

Please see this image: https://m.imgur.com/GgSpP02

The faded out gages represent what a technician would normally see on the systems and the solid gages are what you see right now (on a service call).

I believe the answer to first one is D (dirty or ice evaporater or low air flow on evap). I think the second one is a undercharged system.

Am I on the right track?

Offline Admin

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Re: Hvac student in need of some help
« Reply #1 on: March 21, 2017, 09:59:44 PM »
C) Is not a very nice answer  :-\

The faded out pressures seem off to me, but you're answers would be my choices as well.

Offline Porcupinepuffer

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Re: Hvac student in need of some help
« Reply #2 on: March 22, 2017, 04:29:56 AM »
Where did this example come from?

Offline muffinman540

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Re: Hvac student in need of some help
« Reply #3 on: March 22, 2017, 07:31:18 AM »
Hey there, sorry about that.. my professor has somethung against himark. I did not mean to offend you or anyone here. Please accept my apologies.

Thanks for the help!

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Re: Hvac student in need of some help
« Reply #4 on: March 22, 2017, 08:14:23 AM »
Both faded suction pressures are at 41psig with a 18F saturation temperature.  In R22 systems that would not be what a technician would normally see.

Offline Porcupinepuffer

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Re: Hvac student in need of some help
« Reply #5 on: March 22, 2017, 09:56:22 AM »
Both faded suction pressures are at 41psig with a 18F saturation temperature.  In R22 systems that would not be what a technician would normally see.

I suppose there's a certain amount of rivalry between competing colleges. I'd like to send that example to my old hi-mark teacher and see if he gets a chuckle out of it.