Refrigeration Life # 21 . Pressure Controls And How They Work .
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- Опубликовано: 1 июл 2024
- Just an overview of mechanical pressure controls and how they work . Any questions leave them in the comments . Thanks for watching everyone 👍
You can also email me direct at cscrefrigerationandhvac@gmail.com.
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Good video Thank you Sir. I’m in Connecticut start working in Restaurant
Great review. Good for us beginners
OK I’m just going to binge watch all your videos ! Great stuff.
thanks for the good explanation I just started as an air conditioning mechanic so this video was very useful
Very thankful for this channel!
AdamEater thanks a lot I appreciate that man 👍
Thanks for sharing 😊
Thinks sir your beautiful experience.I will hope in future continue your voice help us.thankfully
Thanks sir very clear explanation
Great performer,,,,,Good stufffff !,
Great vedio. Thank you.
thumbs up great video
That was a help for me thanks
Great video sir god bless you
great video u made it so simple thank you sir love the videos
C&H GUY awesome. Glad I could help thanks for watching !
I’ve made the same mistake, thinking incorrectly on the differential cutout.
Great video Chris!
HVACR VIDEOS thanks buddy !
Excellent video!
Air Mechanical thanks a lot man !
Useful video Enjoyed Thanks for sharing good to see back 👍👍😎 keep it coming
Gene K thanks man
Great video. Thanks
Squirtle Hvac thanks man for watching
Hello again. Could you please explain to me how you would wire a low pressure switch so the unit shuts off. Thanks!
Nice basic explanation.
nota newbie trying to keep it simple. Thanks for watching
Awesome!! I just now found your channel, I’m not sure why though, I’ve been watching Hvac vids for a long time and your channel just popped up
Jeepjones85 awesome man ! Thank you for watching . Do you work in the trade ?
CSC Refrigeration and Hvac Yeah The first company I worked for we had a contract with Gp paper mill 200 ton units, chiller maintenance and cooling towers I loved it I worked with them about 11 years and that mill shut down, now I’m working for a small well I say small we run 13 service trucks, it’s almost all residential stuff ... yuck 🙄 I take all the refrigeration calls and commercial stuff I can, anyway I’ve been with them little over 5 years now.
Jeepjones85 cool man , nice ! 👍
Great video👍
Hvac 1 thanks a lot. I appreciate that 👍
I love your video man they are awesome 😁☺️
Thanks man I really appreciate that
@@Cscrefandhvac I still have alot to learn man and I'm willing to learn your video are very informative 😁 I appreciate you very much ☺️
@@gabrielalvarez8973 thanks man I’m glad they can help. I haven’t put up a vid in awhile now. It’s hard for me to do now with where I work but I do still want to get vids up when I can but they just won’t be all the time like I used to be able to do
I have a unit with an Emerson digital control, thinking about switching to ranco manual / low pressure control. What are your thoughts on that? Emerson control is acting up and i believe needs replaced.
Can you please upload a video of how to wire the pressure switch to the contactor and the compressor please .
i appreciate the video
thank you
Kenny Baker HVAC/R thanks for watching. Glad it was helpful
Hey mate I have a simple question but it keep running in my mind and it is that if I set my low pressure control to shut off at 10 like you just mention my question is the compressor will shut of at 10psi or as soon it sense a decrease in the suction line pressure ?
ก่อนอื่นผมต้องไปเรียนภาษอังกฤษ แต่ก็พอเข้าใจครับ😁
Bonjour monsieur j'aime votre boulot
#sir please one video make on hvac compressor part winding cannection
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Thank you I have been waiting for a video on this. Started doing refrigeration 2 years ago and pressure switches are still confusing to me. Just got to remember to subtract the differential from pressure set. Great video dude.
Robert Weeks thanks for watching man and I’m glad it could help 👍. Have to just pay attention because some pressure controls don’t have the differential
As always good video but I must comment about your use on head pressure controls that already Incorporated Headmaster they don't recommend you do that well I understand it gets very cold in your area I'm in New York it gets cold here too some systems should have heated and insulated receivers with check valves in the liquid drain line prevent migration on the off-cycle that's the correct way the snap acting head pressure controls tend to fight the Headmaster pressure setting but look I've been in the field for 38 years and sometimes you got to do what you got to do it would probably be better two thermostatically control one condenser fan if you have more than one fan and let the Headmaster do the rest of the work good video in any case
Ralph Giampietro yes sir all very good points !! Normally I just let the headmaster do its thing and all is fine . But we have some applications where we use hot gas injection and the headmaster just doesn’t maintain the head pressure high enough in the extreme cold for it to work properly so we also have to cycle the fans as well . Thanks for watching 👍
@@Cscrefandhvac understood
Hi nice video.
Question… what is the difference between the fan cycle control and the low pressure control according to the ones in your video?
Thanks
Since they look the same to me. Thanks mate.
The pressure settings are different . Fan cycle controls are higher pressures because they go on the high side to read head pressure . Low pressure controls are on the low side for suction pressure
When you’re looking at the unit. How can you tell the difference between fan control and high pressure control?
You can tell by the way they are set and also follow the wires and see what they go to
question what kind of copper do u use when u do walk ins installs ? do u use regular line set the same used for residential
thank you for your time
+C&H GUY no we use hard drawn copper. If the liquid line is small like 3/8 or half inch we will use soft drawn copper for that. Everything else is hard pipe
great thank you for the reply
That's awesome thanks sir if you need a partner in repair I'm just waiting for your support 🙏
I always set mine with nitrogen then adjust if I have to.
Jordan Rayburn that a good idea. I’ve never done that , thanks for watching
B YENZER1 great idea man thank you !
Can you create a video on this ?
Hello. What would be the ideal cut in and cut out low pressure settings for a medium temp walk in cooler to maintain a 38 to 40 degrees. Thanks!
Mr. Tinieblas well usually pressure controls don’t control temp anymore on most systems. They are there to shut the compressor off during pumpdown
Understood. So what would you set your pump down pressure to and what pressure should the compressor come back on. I apologize if this seems like a dumb question. I’m still learning commercial refrigeration. I’m hoping to some day gain the knowledge you possess.
Mr. Tinieblas I usually set them to shut off at 5 psi or so and come back on at 25 psi. I like a 20-25 psi differential
CSC Refrigeration and Hvac I appreciate your prompt response. Just one more question if you don’t mind. Will the compressor be cycling off and on until the thermostat inside the walk in box comes down to temperature? Or will it stay running till ? Thanks so much!
Mr. Tinieblas it will run until the box reaches setpoint or goes on defrost . When those things happen it will pump down and shut off
Are you one tech no assistance or helper in job?
Great video 👍
Thanks man 👍