Supermarket HVAC Basics Explained - Refrigeration / Ventilation hvac building services
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Date: 2023-11-17
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Comments and reviews: 12
Malek
hi i have a problem with the output of my EPEVER UPOWER inverter/charger
i correctly connected my inverter to ground but when i test with a multimeter i have 115 volts between neutral and ground also 115 volts between live and ground!
it is very dangerous
what is the problem and what is the solution?
reply
hi i have a problem with the output of my EPEVER UPOWER inverter/charger
i correctly connected my inverter to ground but when i test with a multimeter i have 115 volts between neutral and ground also 115 volts between live and ground!
it is very dangerous
what is the problem and what is the solution?
reply
Dan
One question, what do the different colours mean? I'm assuming that red = hot fluid
Blue = cold fluid
But what about the others?
Like yellow?
And green?
And light blue?
reply
One question, what do the different colours mean? I'm assuming that red = hot fluid
Blue = cold fluid
But what about the others?
Like yellow?
And green?
And light blue?
reply
Matthew
Wow so must super markers like Lawblaws have two smaller condenser units or air units and the rest big long hvac systems I guess its all in one with the food refrigerators systems
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Wow so must super markers like Lawblaws have two smaller condenser units or air units and the rest big long hvac systems I guess its all in one with the food refrigerators systems
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Adanode
The new supermarket has prominent piping to the refrigerated display cases marked condenser water. It looks like each unit has a supply and a return. I wonder what system this is.
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The new supermarket has prominent piping to the refrigerated display cases marked condenser water. It looks like each unit has a supply and a return. I wonder what system this is.
reply
KoSh
PAUL IS super. all his videos are well explained with perfect graphics to understand so easily. you have really helped me with my HVAC and electrical needs. thank you very much sir.
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PAUL IS super. all his videos are well explained with perfect graphics to understand so easily. you have really helped me with my HVAC and electrical needs. thank you very much sir.
reply
Филип
I have a little remark idk if it is correct. When you say the refrigerant evaportates and collects the heat, shouldnt it be it collects the heat and then evaporates?
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I have a little remark idk if it is correct. When you say the refrigerant evaportates and collects the heat, shouldnt it be it collects the heat and then evaporates?
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Willemies
Awesome videos man, I feel like I already understand something about these systems before even starting my refrigeration technician internship. Thank you very much!
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Awesome videos man, I feel like I already understand something about these systems before even starting my refrigeration technician internship. Thank you very much!
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Misael
I am currently studying in the HVAC installer program and the more I learn about HVAC/R, the more amazed I am by it. I wish I'd started when I was younger.
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I am currently studying in the HVAC installer program and the more I learn about HVAC/R, the more amazed I am by it. I wish I'd started when I was younger.
reply
education
hey all! Is there a danfoss app for learning more like questions and such or do I just use the webbbrowser? Thanks again, your awesome mate
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hey all! Is there a danfoss app for learning more like questions and such or do I just use the webbbrowser? Thanks again, your awesome mate
reply
natehour
Thank you for the helpful videos! Is it possibly to convert a 4 story office building, 95K Sf, from cooling tower/AHU system to RTU system?
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Thank you for the helpful videos! Is it possibly to convert a 4 story office building, 95K Sf, from cooling tower/AHU system to RTU system?
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SK.
It's amazing video. You are very talented for engineering. It's useful for us. Keep going for learn engineering.
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It's amazing video. You are very talented for engineering. It's useful for us. Keep going for learn engineering.
reply
Josh
split air conditioning unit you said its only used for cooling, what if you have a reverse cycle valve?
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split air conditioning unit you said its only used for cooling, what if you have a reverse cycle valve?
reply
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