REFRIGERATION PUMP DOWN AND HOW TO CHANGEOVER COMPRESSOR?

Рет қаралды 54,739

2 жыл бұрын

Here is the step by step procedure on how to pump down the provision refrigeration system onboard as well as the correct way on how to changeover the compressor.
#reefer #refrigeration #refrigerationcycle #refrigerationequipment #seafarer #seaman #airconditioner #hvac #refrigerationandairconditioning #leckyjake #electrician #electric

Пікірлер: 82

@mahmoodhassan4537 6 күн бұрын

The best ETO on the planet 👌

@arielcunanan4994 Жыл бұрын

Excellent tutorials

@akarl6578 Жыл бұрын

You are the best. Thank you from Greece

@scorpiomarine-electrocutio7460 2 жыл бұрын

Goodjob.this is very informative sir lecky.

@eduardcalong796 Жыл бұрын

Thank you for this knowledge master lecky jake.. I had learn a lot.

@pedrojardim1163 2 жыл бұрын

Thanks for the very helpful and very good explanation 👍

@BernieQuinia-fl3ed 3 ай бұрын

T.y sir to gud explaination.gud bless

@dennisabad7862 Жыл бұрын

full of information thank you sir for the free knowledge.

@markvillaspin6643 8 ай бұрын

Thank you Lect God Bless

@antonioreyes7476 Жыл бұрын

Another learning from my favorite KZfaq channel. Mabuhay po kayo leckyjake.

@dennisdumale5599 Жыл бұрын

Thank you so much sir jake for these video. More power sir. And keep safe always. God bless to u & to ur famly🙏

@edwardjackson8183 Жыл бұрын

😱🤯.. you blew my mind

@princefernandes5789 2 жыл бұрын

Excellent job 👏👏👏🛠🔧🛠🔨🔧 good explanation 😎😎😎😎

@kiageungwirengrana5374 Жыл бұрын

Many thanks my bro

@aaronjettroehidalgo534 11 ай бұрын

Thank you sir!

@Tutorial_Ref_Aircon_more 2 жыл бұрын

Thank u for sharing sir

@leckyjake 2 жыл бұрын

Thank you for watching

@babaolowo35 Жыл бұрын

Thanks 👍

@Winstly Жыл бұрын

husay sir!!!

@LinkWrayisGod 2 жыл бұрын

Nice one Lecky! Greetings from Spain.

@judebrosas4663 10 ай бұрын

Thank you sir this is a big help to me...thank you❤

@paologringoescalante6916 Жыл бұрын

Maraming salamat po. ❤

@khuatamipatheihhuaithulehl4769 Жыл бұрын

Good

@mahboobKhan-uy7sm Ай бұрын

❤❤❤❤❤

@joseenricoaguila5218 2 жыл бұрын

thank you

@leckyjake 2 жыл бұрын

Thank you for watching

@dhruvrajchauhan4126 Жыл бұрын

Thank you

@leckyjake Жыл бұрын

thank you for watching

@akarshanilkumar3461 2 ай бұрын

❤

@syedbasheer8210 2 жыл бұрын

👍👍👍

@leckyjake 2 жыл бұрын

Thanks

@markpaulofacun Жыл бұрын

👍

@fenflyer Жыл бұрын

Thanks for great videos 👍 Good video on twin compressor pump down 👍can you do video on inverter scroll refrigeration compressors , please 👍 I only worked on old twin 120 KW Sabroe piston compressors systems Amonia and R22 etc 😑 Thanks for great videos 👍

@yousefhaeiri360 2 жыл бұрын

Hi Lecky,thanks a lot please make an introduction video about the Boilers

@willrobbinson1 2 жыл бұрын

boilers??? anyway like vid thanx

@yousefhaeiri360 2 жыл бұрын

Marine Auxiliary boilers

@man15h 2 жыл бұрын

Hello sir can you please suggest a book for understanding single line diagram and learn about switch gear and Power systems protection, relay setting and fault current calculation

@bt9604 2 жыл бұрын

Sir, plz do a video on insulated neutral system in ship 🙏🏻

@rb1m426 2 жыл бұрын

Present mr. Secretary 😊 about sa plc naman Sec.

@leckyjake 2 жыл бұрын

Thank you

@erwinhutapea2091 Жыл бұрын

Thank you so much sir .. sir I will ask about high pressure. if vegetable ekspnsi V/v open high pressure more up until 1.8 and then direct trip .. iwhat problem sir?

@studywithssr338 2 жыл бұрын

Sir please video on circuit diagram reading

@manzillegal1 10 ай бұрын

Leckyjake hello leck could you also make video of procedure of vaccum of the system too weather Aircon or reefer thanku you ver much in advance🙏

@jishnur9770 2 жыл бұрын

Hi Lecky, Frst of all thank you for your wonderful easy explanation on each of your video. Im having a trouble on my ushio ref system, which is no 1 compressor is getting frosted if i let the system run. Now i changed over to no:2 not pumping down , but by charging no 2. What may be the probable reasons for the frosting, no fluctuation in suction and discharge pressure. R417A was charged on no:1 last week.

@leckyjake 2 жыл бұрын

i always depend on the pressures. but most of the times if you have frost in the suction you might have an overcharged of refrigerant

@jishnur9770 2 жыл бұрын

Thank you and hats off for the dedication towards sharing your experience. Always waiting for your videos.

@stonecold1553 Жыл бұрын

Hi just want to share my insight. The trouble is your compressor is getting frosted. One main reason, the refrigerant on the suction line all the way to the compressor is not in vapor/gas form. A lot of reason way this happened, most notorious one is overcharge, malfunctioning expansion device, dirty/clogged evaporator coil, and etc. But base on the scenario you have stated it is more likely overcharge.

@kuldeepsingh8486 2 жыл бұрын

Thank you sir can you make video for same A.C change over . And can make video on main engine course in simple way.

@leckyjake 2 жыл бұрын

Will keep on the list

@rafaelhijara9534 Жыл бұрын

So the switch of compressor is off already before the closing the service valve? Am i right?

@thantzinaung6650 11 ай бұрын

Sir, When you were pumping down the condenser of unit 1, the unit 1 was running in auto mode ?

@torohdelapan8352 Жыл бұрын

Please give education how to change oil the provision ref machine..thx

@freemind6231 Жыл бұрын

sir. acceptable npoba yung negative 17 s meat storage? gusto kc nila negative 20 medyo naggalangan ako galawin . tnx

@amoscolod1519 Жыл бұрын

a very good explanation sir. you said that we need to run the compressor two times so if during the first time the low pressure switch activates how can we restart again the compressor or how will the compressor start again? will the pressure increase itself due to remaining refrigerant on the system?

@ivanfmartinezm Жыл бұрын

You can force to start pushing manualy the main contactor from the compressor about 3 or 5 seconds.

@JerinMathew-rr6qs Жыл бұрын

Why crack open for suction side valve ??

@jrahul8136 2 жыл бұрын

Please share how to trace electrical wiring diagrams...for example motor and starters circuit

@leckyjake 2 жыл бұрын

I normally include the tracing on my troubleshooting videos

@Tech-NO-City 2 жыл бұрын

Next time please add "What not to do" I learn more by learning from others mistakes.

@cck1496 Жыл бұрын

Thanks but why do we need the system to be pumped down? Why we can't keep one compressor off (rather than isolating it)? Thanks.

@leckyjake Жыл бұрын

normally the changeover is being done every month, you do not want any refrigerant in the line for the non running compressos as in will condense in the latter.you do not want liquid state refrierant to enter into your compressor.

@antenehberhanu4467 4 ай бұрын

My dear what is the problem of freezer room start and stop again and again even if refrigrant gas is infe amount in the system

@bhongtorbs5685 Жыл бұрын

Crack open lng ba talaga yan sir yong suction normaly? Or i full open mo rin yan.

@joalpsengineman4717 2 жыл бұрын

Sir asan maganda .mag training sa pilipinas about electrical and reefer dto ako sa US as a Merchant Marine sa APL mahal ang training dto nasa $20k per training ng reefer at electrician and it takes 6 months

@elecbaskogpogi2086 2 жыл бұрын

Good day lec. I have a question I experience during pumping down discharge pressure is increasing until high pressure trip activated and suction pressure is not decreasing hard to activate the low pressure switch. What is the cause? For that reason I cannot properly pump down and changeover to another one compressor. Hope it will answer Thank you in advance.

@leckyjake 2 жыл бұрын

first, the cooling should still be present during pump down. you can adjust the setting of your discharge pressure switch as per your manual max limit. 3rd. check for leak test on your suction side. the pressures you may be getting is the air that is goibg through your system

@elecbaskogpogi2086 2 жыл бұрын

@@leckyjake thank you. Have a good day ahead.

@royceroneilramos Жыл бұрын

Ano po yung dahilan bakit need munang naka crack open lang ang service valve ng suction side sa compressor 2? Thank you idol 🙂

@teslapower220 Жыл бұрын

Haven't reefer containers made these systems obsolete?

@nelsonramirez7586 2 жыл бұрын

Hello sir.. i just ask if you need to deactivate first or set some setting in the control to not activate the pressure switches while doing pump down??? Thank you in advance

@leckyjake 2 жыл бұрын

good question, if the suction pressure switch is more than zero bar/MPa then adjust it to zero.

@nelsonramirez7586 2 жыл бұрын

@@leckyjake Thank you sir.. God bless you always and takecare... one of your subscriber here 😊

@davidosei9560 2 жыл бұрын

Hello sir , I’m having a bachelors degree in Electrical and Electronic engineering and I will like to work on board . What are the steps I to go through before getting a seagoing job

@leckyjake 2 жыл бұрын

It actually depends on your country if you are asking about requirements

@yaswanthsri2524 2 жыл бұрын

u can do course called ETO

@ninogonzales4621 10 ай бұрын

Sir leckyjake patulong naman yong fish room namin ayaw mag reach sa -18 ,hanggan-13 lang sya. Palaging nakabukas yong expansion valve kaya nag ice na yong evaporator. Kahit nag depros na kami ayaw pa din talaga tumaas . Patulong po. Salamat idol