Can this be connected to vacuum pump to evacuate system to check leaks and be able to read negative pressure on the gauge (vacuum gauge) ?
1475754
Yes, it can, and that is how I ended up with a broken unit. It is supposed to work, but when I applied vacuum, the gauge topped out and has not moved since. (high side). I was able to pull a vacuum and do the work. I think I got a bad unit. Still, all together, it cost less to buy this and have it go bad than to have the A/C work done in the first place.
864363
No-the hose/vacuum port, release valve, and pressure guage are all-in-one...a bit of a design flaw I'm afraid.
926985
I don't think so, this is a static system, I would think that the additional pressure would cause leaks.
1208932
I am almost certain the answer is "no". It turns valves on and off, and has no way of sensing water pressure, etc.
1246386
yes the only difference is suction gauge reads the same psi increments as the discharge so if you hook it up wrong in heat mode on heat pump it want blow your gauge
2117847
I'm not electrically inclined. Not sure if a ground fault circuit interrupter is part of it. There is a reset button on it, so maybe? We do use an extention cord with a dedicated line at the house. We did have to rig our previous vacuum to the unit and small sediment (well water) does sift back in. I know that's not what you were asking but it is something to think about.
1509301
There is a gauge, but the adapter cant lock on to the tube when pumping. Air keeps leaking, I could be bad luck. But I couldnt pump anything with it.
1834510
You have to be able to lift up on the tank for the gauge to be able to determine how full it is. So, if you leave it connected, the connection would have to be loose so it wouldn't hinder the measurement.
2051372
The tool is a vacuum pump, not an air compressor. You need AC gauge lines to use the pump correctly.
22800
The kit I received included a funnel/tube to catch the drips from the vacuum breaker (regarding the drips Chuck Daniel refers). Your outdoor hose may already contain a vacuum breaker, so you could sound check those. My pump is installed solely as a backup for power outages. The install instructions mention that this unit is to be used as a backup, but does not mention why. Possibly legal coverage in case of a failure?
1113658
Don't know I use it for scuba diving. No pressure gauge. It is how ever 3000 psi so you could probably math from it
416324
it is a vacuum pump - it should never contact the refrigerant. CB is correct - you will probably require a flare adapter
2195551
This pulls a full negative pressure easily. My vacuum oven Guage hits -29hg and it maxes it out within 2 minutes
971009
No you cannot use this guage alone to measure the pressure without the Lezyne pump. Air passes throught the hose, so without the pump there is no pressure blocked. If you were to cap one side of the hose then you could get a reading. However, that solution would not be a practical as compared to other pressure guages designed to measure more accuratly.
1173768
Yes, this can be used for any application that can use vacuum to operate, it supplies 16hg of vacuum and we also sell a wiring connector that you can use to make a splice-able connection. Lots of people buy this for custom use often, you may need different vacuum connectors which are readily available at most any home improvement or auto parts store.
489119
No, it is only used to measure leakage in each cylinder, an OTC compression gauge is useful as another testing tool.
478500
You can use it, but you must have the air pump adapter on the valve to get a reading.