Are a lot of these same principles from this R series interchangeable to a Y series smart multi? I.e. Th2 temps average, th3 average, putting into test mode for SC, etc…
The Shell Temp Thermistor didn’t exist until about late 2017/ 2018? I was part of Mitsubishi’s DSG and worked with Paul Messer to Field install/R&D these. It was FREAKING COLD! Some University in Northern Baltimore.
Mhhmm! Not fun. I love keeping the old main boards for my house tho. They make good decorations😂 I've had to add the kits to several buildings they weren't done on.
So many temperatures. Last year the outdoor unit made some weird gurgling sounds in certain cases this year no sounds but way less cooling than usual. Thinking low refrigerant will check for leaks. How to know how much freon to add - is there a target subcooling from Mitsubishi that we can focus on achieving or what would you optimize for when topping up refrigerant? (Don't have the total weight and would like to avoid evacuating everything.)
@@VrfMadness Ok thanks for the reply and your content on Yt. At least then the total charge will be known to be correct. Was thinking to add a kg or two and watch the supply air temperatures getting lower.
If you have a vrf Mitsubishi with a branch box. Cycle power off at ic and oc . At the branch box switch sw4-7 ON. Wait 2 min. Then put it back off. Then cycle branch box power off. All eevs will screw full open make vac and recharge faster
Great videos man. I learn a lot from you. Factory training is good but you really showing real world experience. figured it out how to place on test. I live in California and hoping to see more videos from you. Great freaking job.
Hi mate,,,nice video,,,what the best practice,,,to change the inverter compressor ? Close the both valve all the way in front seat and reclaim the gas from the condenser ? What you recommend you opinion please thanks ,,,
Yes, I like close ball valves on the unit with failed compressor. Let the other unit somewhat maintain the building while I get the compressor out. The proper procedure is to pull the compressor and measure the oil and do an acid test. If it's acidic or you are low on oil, you MUST replace both compressors and both accumulators along with new oil.
Really love ur videos I just started working in nyc and getting into the Mitsubishi service tool and u are a big help .
great stuff keep the videos coming highly appreciated
Great video. A lot of information. Thank you.
Are a lot of these same principles from this R series interchangeable to a Y series smart multi?
I.e. Th2 temps average, th3 average, putting into test mode for SC, etc…
More or less, yes.
I'll try and do a Y series in the future
@@VrfMadness that would be awesome! Appreciate the reply!
The Shell Temp Thermistor didn’t exist until about late 2017/ 2018?
I was part of Mitsubishi’s DSG and worked with Paul Messer to Field install/R&D these. It was FREAKING COLD! Some University in Northern Baltimore.
Mhhmm! Not fun. I love keeping the old main boards for my house tho. They make good decorations😂 I've had to add the kits to several buildings they weren't done on.
So many temperatures. Last year the outdoor unit made some weird gurgling sounds in certain cases this year no sounds but way less cooling than usual. Thinking low refrigerant will check for leaks. How to know how much freon to add - is there a target subcooling from Mitsubishi that we can focus on achieving or what would you optimize for when topping up refrigerant? (Don't have the total weight and would like to avoid evacuating everything.)
The best and most accurate way is to remove all refrigerant and weigh it. Then compare it to the total charge that the dsb states it needs!
@@VrfMadness Ok thanks for the reply and your content on Yt. At least then the total charge will be known to be correct. Was thinking to add a kg or two and watch the supply air temperatures getting lower.
I have version 5.45 and I’m not seeing refrigerant circuit diagram under maintenance tool. Any idea?
What gen units have you tried it on? Make sure it's enabled in mtool. Can't remember what it's under though, but I can check tomorrow
Not sure what gen it is but the units are between 6-10 years old
Do you have to use maintenance tool?
How to put ‘central’ controll OFF om the inside units?
Do you have a touch screen (ae 200) central control? Or eb(W) - 50?
@@VrfMadness i have eb(w) -50
@@VrfMadness i have a eb (w) - 50
@@VrfMadness i have eb(W)-50
If its twin unit do we need to set the dip switches on both?
No, only the OC
Keep going nice demonstration thank you for sharing
With LG there is a vacuum mode you can go into to make repairs and pull charge, is there anything like that for mitsubishi?
Nope. Just turn power off and you can vacuum and recover.
If you have a vrf Mitsubishi with a branch box. Cycle power off at ic and oc . At the branch box switch sw4-7 ON. Wait 2 min. Then put it back off. Then cycle branch box power off. All eevs will screw full open make vac and recharge faster
@@VrfMadness plz tell me your twitter account
@@VrfMadness plz
Weirdo @@taqmeemalam8852
Outstanding video Mr Mad. I work a lot on Daikin units. Can you please do a video on how to run it on test mode Mitsubishi?
How to place the system into test mode?
Great videos man. I learn a lot from you. Factory training is good but you really showing real world experience. figured it out how to place on test. I live in California and hoping to see more videos from you. Great freaking job.
What's the software name which you install on your laptop. I want this software please help me. Thanks
Will this work for a heat pump?
Like a Y series city multi?
Hi mate,,,nice video,,,what the best practice,,,to change the inverter compressor ? Close the both valve all the way in front seat and reclaim the gas from the condenser ? What you recommend you opinion please thanks ,,,
Yes, I like close ball valves on the unit with failed compressor. Let the other unit somewhat maintain the building while I get the compressor out. The proper procedure is to pull the compressor and measure the oil and do an acid test. If it's acidic or you are low on oil, you MUST replace both compressors and both accumulators along with new oil.
Thank you for the video. ..!! Very interesting.
Awesome stuff. Thanks for Sharing!
Discharge superheat is like X rays. You can see a lot with this number only.
Absolutely agree!