38 SEER! $1300 WOW
Mitsubishi is indeed a fantastic setup, gree makes bargain units for most manufacturers, Daiken makes the more robust units that aren’t finikey or problematic to service. Fujitsu and others are a bit quirky for me.That seems way to good to be true!
I have (3) of the 33 SEER Mitsubishi units and they so far have been fantastic.
Minisplit units ONLY have a low side gauge port… look in my comments in the video, I offer a better way to purge the lines.Only showed vacuuming lowside line with precharge valves shut off so no pressure equalization through compressor. It is a little iffy that full amount of vacuum made it pass inside unit expansion valve to pull air from highside line.
Normally you would hook red hose to highside port, blue to lowside port, and yellow line to vacuum pump with both gauge valves open to ensure vacuum pull on both lines. Maybe he did this off camera after discovering mistake on red - yellow hose reversal.
Some A/C guys use inline Schrader valve pullers on port to reduce the resistance to water vapor flow during evacuation. This is a bit of extra hassle. I just run vacuum pump longer to allow more time to pull water vapor molecules out of system.
When do you folks have time to watch hour-long utube videos? I'm retired and my outdoor activity lately is limited by a back injury and still ... no way. I can't find the time.
How about a link to the product? Or a spec sheet?
I appreciate your feedback on the Mitsubishi units. I've been agonizing over which mini split unit to buy. Ideally, I'd like to buy one outdoor unit that works with 3 air handlers, but it seems like my options are limited and the 1st choice, Mr Cool, is now off the radar since I've heard some less than favorable reviews. I'll look into Mitsubishi to see if they have a multi-zone unit. My 100% off-grid house is about 80% done so I really need to nail down my choice soon. Again, thanks for your comment. georgeThat seems way to good to be true!
I have (3) of the 33 SEER Mitsubishi units and they so far have been fantastic.
What's your take on Mitsubishi Heavy Industries vs. Mitsubishi Electric?Mitsubishi is indeed a fantastic setup, gree makes bargain units for most manufacturers, Daiken makes the more robust units that aren’t finikey or problematic to service. Fujitsu and others are a bit quirky for me.
if a customer wants the best, they get Mitsubishi, durable, they get Daiken, cheap, they get gree.
First, thanks for the link. I saved it ages ago.Here ya go.
His video actually takes you through the entire installation. He makes a few minor mistakes, but overall a decent diy minisplit install.HVAC
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The refrigerant control device (EEV) is in the outdoor unit. You can pull vacuum on either or both ports.Only showed vacuuming lowside line with precharge valves shut off so no pressure equalization through compressor. It is a little iffy that full amount of vacuum made it pass inside unit expansion valve to pull air from highside line.
Normally you would hook red hose to highside port, blue to lowside port, and yellow line to vacuum pump with both gauge valves open to ensure vacuum pull on both lines. Maybe he did this off camera after discovering mistake on red - yellow hose reversal.
Some A/C guys use inline Schrader valve pullers on port to reduce the resistance to water vapor flow during evacuation. This is a bit of extra hassle. I just run vacuum pump longer to allow more time to pull water vapor molecules out of system.
I'm not sure why you think they don't last as long.Understand, those high SEER numbers are nothing but sales hype. I sell, replace, install and test HVAC systems every single day. Mini splits are great for applications where a standard system with ductwork can’t be installed. They will not last as long, cost more to repair, harder to find a service person, harder to clean and good luck with the DIY warranty.
After living for the past 12 years in southeast Asia, I know only mini-splits. Every single condominium, house, shop or store has been using them forever. Only malls and factories have any duct work in them. They work, they last, are easy to service and clean.Understand, those high SEER numbers are nothing but sales hype. I sell, replace, install and test HVAC systems every single day. Mini splits are great for applications where a standard system with ductwork can’t be installed. They will not last as long, cost more to repair, harder to find a service person, harder to clean and good luck with the DIY warranty.