Type: Posts; User: Gappa
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Like I said my guess is the installer used orifices that were too large. I am not sure if it has ever run right as I only just got this contract and have only done a preliminary inspection off all...
head pressure +-160psi suction +-76psi superheat 1-2 degrees on both evaporators(taken separately at port inside evap coils). The bulbs are mounted and insulated. The system has a HPR valve. I did...
Hi I have a question about a system I am looking at.
It's a dual evaporator walk in cooler running 404a.
It has low head pressure, high suction pressure, very low superheat on both evaporators, and...
07-10-2012, 10:03 PM
wow as long as ive been doing this 20+ years I didn't realize internally the bulb side was countered by the evap pressure.. I thought the spring pressure was all that countered bulb pressure. So I...
07-10-2012, 09:33 AM
I thought the external or internal equalizer was for bleed over when the system shuts off to allow for equalization of pressures to avoid compressor starting against high head pressure. Not for...
07-10-2012, 08:33 AM
I do realize the bulb charge and the system charge would be different BUT the bulb senses temperature to open and close not pressure right?
07-09-2012, 11:23 PM
why would it run wrong? The system charge has no bearing on the TXV bulb charge, they are isolated from each other. What about if it were a piston/orifice?
07-09-2012, 11:07 PM
That's what I thought, that AHU had the R22 valve installed.
My question is: how would it run if it DID HAVE an R410a valve in it?????
07-09-2012, 10:35 PM
I did a changeout today and ran into an interesting situation.
The indoor unit was a MY2005 Carrier that was marked as having an R410a TXV. The outdoor unit was a MY2004 Bryant R22 Heat Pump. I did...
07-12-2011, 01:41 PM
I have pretty much given up on residential unless someone begs for service, I try to stay in commercial kitchens now. Yea sometimes it's harder to get paid but since I had 2 heart attacks my body is...
07-11-2011, 08:56 PM
I don't think work ethic has anything to do with it. A human body is still a human body. 108F and the brain will start to become damaged. Ever heard of Helen Keller? She lost her sight and hearing...
07-11-2011, 03:41 PM
Damn it get me a job at your company rickboggs! Most owners are so greedy they don't care what happens to their people. But wait till someone dies and they get the pants sued off of em!
I try to do...
07-11-2011, 01:40 PM
I have had classic symptoms before of heat stroke, dizzyness, blurred vision, red splotchy skin, nausea and ALWAYS a heavy throbbing headache.
Down here in South Carolina these attics get to 150F...
07-11-2011, 01:06 PM
I have been doing HVAC and Refrigeration for almost 20 years and still can't stand being in an attic for very long. I have often wondered if anyone has passed out and died before and why employers...
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