I liked the examples of different charge levels and their temperature splits and super heats. I think that kind of stuff helps build intuition about his things are supposed to work.
Recovery to liquid port on recovery tank is not bad, but is much faster and better on vapor port, because there’s no dip tube restriction. Great video Tadd
Most brands come with a pre charge amount. Btw I can see where the refrigerants probably leaking out…them quick connect/push fittings on the lineset are a call back waiting to happen
My multi zone minisplit has electronic expansion valves on each zone, so the computer controls the superheat sub cooling by how much it opens the valve. Because of this, to measure the charge, the only option is to pull the full charge out on a scale, and add what your missing when you put the charge back in. A correct charge is less important on a minisplit because of the large reservoirs in the outdoor units and the electronic expansion valves.
@@TaddyDigest thank you. I’m guessing different by unit. My Fujitsu halcyon has a rotary compressor and tech told me it’s an open system so as long as I have all ports open I can recover from any service port and I can vacuum/charge from any port. Recommendation is to for example pull vacuum from two zones at once to help expedite.
I did a successful 300 PSI nitrogen test for 30 minutes on my 15k btu fujitsu unit but my vacuum pump can't get within the range of my micron guage after 30 minutes..... I know there's suction... I tested with my finger
I guess it’s home owners that you’re teaching. Professional Techs! PLEASE DO NOT PULL A VACUUM LIKE THIS!!! Look up Jim Bergman evacuation. I’m sure it will come up
I was praying you weren’t gonna teach guys to pull a vacuum through a gauge and no micron gauge? How are you teaching techs to pull a vacuum by sound. I’m let down, seriously man. You know better than
@@frankgall6 you can still valve off the pump and watch the needle as long as you dont get a rise over the -30psi on the manifold over atleast a 10-15 minute test…how we did it before vac gauges were a thing
Bro stop living in the past. 20 years ago nobody would vaccum or use nitro. Just purge the lineset with refrigerant and call it a day and the AC's would last for 30 years. In todays world this is not the case. For better or worse you MUST pull deep vaccum and able to hold it. Also, braze by with first purging with nitrogen and then flowing at a lower rate. That's how is done professionally. I am in the trade 6 years and I see hacks all the time. Just because you installed a system and it works right away it doesn't mean it will perform at its rated capacity or last as long.
I liked the examples of different charge levels and their temperature splits and super heats. I think that kind of stuff helps build intuition about his things are supposed to work.
Recovery to liquid port on recovery tank is not bad, but is much faster and better on vapor port, because there’s no dip tube restriction. Great video Tadd
Awesome stuff here Taddy. Very educational and enjoyed the watch!
Excellent, my brother. I love to hear this feedback 😀
Another excellent video and I appreciate you taking the time to help others!
I appreciate that!
So glad you in shorts. See you doing good. Appreciate your info on TH-cam .
I appreciate that!
hope you a female
Thanks so much for the tips! 🙏🏻
You're so welcome!
Thank you so much for all your videos
You are so welcome!
Great video a lot of information please do more
Absolutely I will do more
Been searching this is super helpful thank you
Excellent thank you so much for watching
Ding! Tad, this video is Fantastic, Tad! Thanks!
Glad you liked it!
@@TaddyDigest Always fun to learn from your channel! Thanks.
Most brands come with a pre charge amount. Btw I can see where the refrigerants probably leaking out…them quick connect/push fittings on the lineset are a call back waiting to happen
My multi zone minisplit has electronic expansion valves on each zone, so the computer controls the superheat sub cooling by how much it opens the valve. Because of this, to measure the charge, the only option is to pull the full charge out on a scale, and add what your missing when you put the charge back in.
A correct charge is less important on a minisplit because of the large reservoirs in the outdoor units and the electronic expansion valves.
good stuff thank you for sharing
Thank you. What’s different with multi zone? Thanks
More ports, more sensors, more units, more line sets
@@TaddyDigest thank you. I’m guessing different by unit. My Fujitsu halcyon has a rotary compressor and tech told me it’s an open system so as long as I have all ports open I can recover from any service port and I can vacuum/charge from any port. Recommendation is to for example pull vacuum from two zones at once to help expedite.
When you’re pulling a vacuum on a mini split after recovering do you close the service valves or leave them open?
I leave them open
Need to remove valve cores and yes you got to have a micron gauge
Can you put back the recovery Freon from the tank back to the AC unit
Good bro..
Thank you so much 😀
Very thorough! Thanks Tad, #giveaway
I did a successful 300 PSI nitrogen test for 30 minutes on my 15k btu fujitsu unit but my vacuum pump can't get within the range of my micron guage after 30 minutes..... I know there's suction... I tested with my finger
Everybody showes a single indoor unit. how do you charge a unit that has 2 indoor inverters?
I guess it’s home owners that you’re teaching. Professional Techs! PLEASE DO NOT PULL A VACUUM LIKE THIS!!! Look up Jim Bergman evacuation. I’m sure it will come up
I was praying you weren’t gonna teach guys to pull a vacuum through a gauge and no micron gauge? How are you teaching techs to pull a vacuum by sound. I’m let down, seriously man. You know better than
@@frankgall6 you can still valve off the pump and watch the needle as long as you dont get a rise over the -30psi on the manifold over atleast a 10-15 minute test…how we did it before vac gauges were a thing
@@JesseDoesHVAC feel free 👍🏻
Bro stop living in the past. 20 years ago nobody would vaccum or use nitro. Just purge the lineset with refrigerant and call it a day and the AC's would last for 30 years.
In todays world this is not the case. For better or worse you MUST pull deep vaccum and able to hold it. Also, braze by with first purging with nitrogen and then flowing at a lower rate. That's how is done professionally. I am in the trade 6 years and I see hacks all the time. Just because you installed a system and it works right away it doesn't mean it will perform at its rated capacity or last as long.
way too much work - we need a button - all fixed
This superheat method is all wrong it depends on the temperature and the load inside a house
You get super heat from a simple calculation
Please teach me if i'm wrong
@@TaddyDigest look up superheat chart it constantly changes with outdoor ambient and indoor wet bulb if it's a fixed orifice