BACOENG Professional Vacuum Pump & Manifold Gauge Set - HVAC A/C Refrigeration Kit - Diagnostic R12 R22 R134a R410A - w/Case

compressor was not working probably although i have added a recommended oil before usage...Manifold Gauge Set ( ok(

Ordered on a Saturday afternoon/evening and it was delivered Sunday. Used to evacuate 3 mini-split systems. All hoses, fittings, and valves appear to be good quality. Gauges seem accurate and can be zeroed easily if needed. Pump pulls a very good vacuume, don't over fill it with oil as some have done as it will not work well and oil vapor will blow out the exhaust port. The included spare seals are a nice touch as well as the bag, which is way better than I expected and should actually hold up to use.

I've only used this kit twice and it works great. Can't say how durable it is but for the amount I use it should last.

The extra item you'll need is the "Yinleader 500w Voltage Transformer" at £42 to provide 110v for the vac pump which has the amps/watts headroom to power the vac pump.My 31yo truck vac'd down nicely with the pump, after replacing a worn through high pressure ally pipe, a new condenser & drier. Having the black AND yellow pipes means that the pump has it's own vac pipe, and using the vac'd system, you can add oil to it on the yellow vac'd line, drawing in the oil under vac, without pulling in air.In all a great piece of kit.

The compressor is 110v and us plug. So it’s unusable for uk at 220v. In the pictures of the product is blurred so you don’t clearly see. Waste of time and money as I can’t use it

First let me start by saying for the price I am very pleased.Now, the can tap that comes with it won't work on the new type refrigerant canisters. It is for the old type that was designed to be peirced.Went to the auto parts store and the one they had worked but was acme threads. Fortunately an adapter came with this kit that worked.Aside from that I'm very pleased overall with the kit. Manifold is far superior to the 3 line setup.For those that are a novice like me when it comes to A/C systems follow these instructions and you should be good. (Took me a bit of trial and error)1. Have a shop evacuate your system to reclaim old refrigerant if it's still under pressure. If like in my case you had a leak, there is nothing left to evaporate.2.With all the knobs on the manifold in the closed position, Hook blue side to Low service port and red side to high service port. You can't mix these up. They are different sizes and will only fit on the correct port.3. Connect vaccum pump (make sure you put the supplied oil in it. Don't use pliers on any of these fittings, they are designed to seal hand right.4. Turn on the pump. And open the black, blue and red knobs on manifold. Make sure the service port quick connects are in the open position as well (note* these go clockwise to open unlike the manifold knobs.)Let it run until it draws down to 30 on the blue guage. Close the black knob (vaccum) and shut off the pump. At this point let it set for at least an hour and make sure it maintains 30 and the needle doesn't move. If it does you have a leak somewhere and charging won't do any good.5. If vaccum held. Turn the pump back on, open the black knob back up and run for another 30 minutes to make sure all moisture is drawn out of the system.NOW PAY ATTENTION HERE TO THE ORDER OF THINGS.6.Close the black knob. Shut off vaccum pump and close the red knob (high side) on manifold. You are ready to begin with charging.7. On your vehicle there should be a sticker that states how much and what type of refrigerant to use mine happen d to be 1lb 14 oz. Keep in mind that all the cans you find will be 12 oz. Doing the math in my case makes for 2 & 1/2 of a can of refrigerant. A small scale can help you to determine the fraction of a can (if needed).8. Screw in the refrigerant can on the yellow line, screw can tap down all the way and then back a couple turns. Now you need to purge the yellow line of air. This is done my removing the small brass cap and depressing the Schrader valve (like a tire stem). Doesn't need much. Just a quick burst.9. Start your car. Turn the AC and fan on. Once again make sure the red knob is closed on the manifold. Now slowly open the yellow knob on the manifold. This will allow refrigerant to start flowing into the system. The compressor will start kicking on and off and will gradually drain the can. Look through the window in the manifold and you will see the liquified refrigerant going through. Helps to see when a can is empty as well.10. Now that you have emptied a can MAKE SURE YOU CLOSE THE YELLOW KNOB. With the yellow knob closed you can remove the empty canister. Make sure to wear gloves as if it's not fully empty you could get frost bite from liquid refrigerant when you unscrew.11. Attach next canister, purge like before, then open the yellow knob back up.12. Repeat process until you have the specified amount of refrigerant charged.Hope this helps as I had a hard time finding clear and concise instructions on line.Once again, unless you have old stock R134 cannisters (puncture type) the can tap provided won't work. It's only $7 for a new one. Aside from that I am very pleased with the quality of this set.