HVACR: What Is A Dual Pressure Control & How Does It Work? Air Conditioning & Refrigeration Controls

HVACR: What Is A Dual Pressure Control & How Does It Work? Air Conditioning & Refrigeration Controls
Ranco dual pressure controls are used for either operating or protecting commercial refrigeration and air conditioning systems. Within one NEMA 1 enclosure, they are a combination of both high and low pressure controls interconnected to operate a common switch.
Ranco dual pressure controls are suitable for R12(R134a), R22 and R502 refrigerants and are available with either male flare or capillary with flare nut pressure connections.
The O12 series, with a single pole, single throw switch (SPST), will directly control a single phase compressor; the O12 may also be used with a contactor for pilot control for single and three-phase compressors. The O22, with a double pole, single throw switch (DPST), will directly control single of three-phase compressors. The electrical ratings inside the control cover must not be exceeded.
The low pressure closes (cuts-in) the switch on rise of compressor suction pressure and opens (cuts-out) the switch on pressure drop. The high pressure function overrides to open the switch as the compressor discharge pressure rises.
Specifications:
Low Pressure (Open Low): 10" to 100 PSI, 10 PSI fixed differential, manual reset.
High Pressure (Open High): 150 to 450PSI, 70 PSI fixed differential, manual reset.
Capillary: 36" with 1/4" SAE flare nut.
Switch: SPST
FLA: 24Amps @ 120VAC/240VAC
Dual pressure control settings
How to adjust a dual pressure control
How to install a dual pressure control
How to troubleshoot a dual pressure control
How to bypass a dual pressure control
How to jump out a dual pressure control
How to check a dual pressure control

[@razaramees7]

Imma newbie and at starting it was confusing and at the end by the drawing, everything was clear ❤️💯👍🏼

[@fs28792]

im going to hvac school so you posted a good video thank you.

[@user-bk1pu7mh8i]

I swear I learn more on RUclips than i do in college ☠️

[@bonganiedwardmthethwa6455]

Thank you once again for clear explanation on the pressure switch. I'm looking forward on the next one when you doing the wiring. Thanks once again, God bless.

[@primal_cy]

Thank you, this is so simplified

[@paulmutsambi5535]

This vid is very helpful, one of the easiest tutorial ever

[@Sc19869]

You are the best sir.

[@musakavalci9470]

Excellent explanation. Loved it 👍🏼

[@JumpermanTech]

Thank you! Glad you enjoyed the video 🙏 Many new videos coming out soon! 2 more coming this weekend 👍

[@abdorakeebnaji1527]

Very good explanation you make it so sample. Thank you.

[@muhanadmmm]

Thank you! I can say that understand it now

[@izzybell11]

Excellent presentation and tutorial. Helpful and interesting video. Thanks for sharing your knowledge with us.

[@JumpermanTech]

Thank you! Glad you found this video interesting & helpful⚡ Many new videos on the way!

[@hugovalenzuela6669]

Excellent thanks

[@chshincooling]

Good simple explanation

[@ausseamore8386]

great help

[@fs28792]

im going to santa monica city college for hvac.Its a great video thanks for posting..

[@pedrojardim325]

Thanks for. The. Video

[@johnson4940]

Excellent 👍

[@thesilentonevictor]

Great explanation 👌

[@JumpermanTech]

Thank you very much Neilvester! Appreciate your support 🙏 Many new videos on the way!

[@josemigues4233]

Nice thanks

[@ramonmolina717]

Great job

[@JumpermanTech]

Thank you very much! I appreciate the feedback 🙏 Stay tuned for new videos every week🔧⚡

[@rajeevsharma7386]

Well explained 👍

[@JumpermanTech]

Thank you very much! Stay tuned for new videos every week⚡🔧

[@lebronjames8799]

The best! :)

[@mudassarahmedjanjua2631]

Thank you for sharing your knowledge and experience can you also explain how to use pressure control as temperature control thanks.

[@jasonjohnsonHVAC]

Been using these for years and years. They do need some fine tuning and can get out of whack after a few years, but they are hearty and will last quite a long time.....except when they start leaking refrigerant lol.

[@JumpermanTech]

You're right about that 💯 Once it leaks, better off to just replace it. Going with the dual pressure control instead of just the low pressure control was the best idea. A bit more work but worth it. Thanks for watching! Stay tuned for new videos every week⚡🔧

[@MichealAzaglo-ex9nu]

Great

[@smpracticalhvacengineering]

Nice video

[@JumpermanTech]

Thank you! Stay tuned for new videos every week⚡🔧

[@shine-cg9uf]

Awesome 💪👍🇺🇸🐕 JMT

[@JumpermanTech]

Thank you for the feedback & watching! Stay tuned for new videos every week⚡🔧🇺🇲

[@toyinorodare4072]

Do a Full Training on Parallel Rack Compressor System

[@stephwaylonwells3218]

👍

[@lolobon18]

How do you reset it? That models has no switch

[@MarioDallaRiva]

👍🏻👏🏻💪🏻

[@JumpermanTech]

🙏🙏🙏 Stay tuned for new videos every week⚡🔧

[@shakilkassum4584]

Why the gloves ???

[@rocker8692]

Do you jump rope?

[@JumpermanTech]

Only on Sundays. Thanks for watching! 🔧⚡️

[@JaykeSapalaran-iq3qs]

Great video information 👍❤ thank you for sharing your knowledge and experience 🇵🇭🫡