Gree Flexx Actual Amp Draws on 3 Ton - Attempting to Force Defrost.

In this video I return to the Gree Flexx we installed months ago to check on how it is doing, including amp draws, and attempting to force defrost. #acrepair #hvacguy #hvac #hvaclife #hvaccompany #gree #greeflexx #hvacinstall #airconditioner #heatpump ‪@greeairconditioners7930‬ ‪@FieldpieceProducts‬ ‪@VetoProPacToolBags‬
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[@jamesg6071]

Just had a gree flexx 3 ton installed at my house for the upstairs. Absolutely love it and has reduced my power bills significantly. Looking at putting the 4 ton Multipro for my downstairs soon

[@charliebrewer617]

I was hesitant about putting in 2 Bosch package inverters on my house last year. I have been impressed, and I only had 10 minutes of heat strips on one system and 0 on the other one. The savings on heating and cooling after replacing two 26 year old gas packs has been impressive.

[@michaelangelo6217]

All of your energy savings will be used when repairs are needed, unfortunately. The common components that fail cost 3-4 times what a minimum SEER rated unit will cost. For instance, a normal condensor fan motor will cost between $500-$600 (total) for replacement. Those Bosch high efficiency motors are around $1500 (motor only) and you will still need to pay labor and possibly a little mark up on the part. In other words, over $2000 for your repair. Note, these costs would be for an out of warranty replacement. In warranty, you are subject to labor costs and service call.

[@chrisE815]

@@michaelangelo6217 it makes sense for me in zone 6 where heating cost for my modest house is 2k to 3k a season and my split system cost me 6 grand, installed. I can see where further south a traditional heat pump is the more logical choice. Furthermore, instead of spending 5 to 10 grand (or more) on a new hvac system, put that money into insulation and air sealing and also maybe resistance heating can get you through a few seasons or a winter if you're strapped for cash with a broken furnance.

[@woodystokes1543]

Glad to see you have a surge protection. Nice work. 😊

[@customdetailer0078]

I put a 1 1/2 ton Gree mini split in my 3 car garage and it’s been an amazing unit. We live in the desert it cools great In summer heats well in winter. Thanks for the upload.

[@thesilentonevictor]

Looking good still installation well done

[@garymartin2336]

I like the 11;20 moment when you covered the AHU fan openning with the door turned side ways to allow access to electrical!😀

[@blh3741]

I installed a 5 head(only using 4 heads at this time) Fujitsui n our own NorCal home. Works great in our cooling season with a 15k btu head for the living and dining room. 9k, 9k,6k for the bedrooms when in use Now that it;s heating season, the 15k head in the living room doesn't do well for us and I probably need an additional head in the dining room...or not. So, we continue to use the Williams 35k btu natural gas wall unit for heating of the home. 64* downstairs and 68* upstairs. Not ideal, but gas is cheap(er) than power charges that range .for $0.13-$10.15/kw in the winter. Summer rates are $0.13-$0.32/kw, depending on time of day. Farther south, in SoCal SCE/PG&E run upwards of $0.50kw for peak summer rates...ouch! BTW...If I was to do it again, I'd pay the upcharge and go with Mitsubishi and oneway ceiling cassettes in the main areas and master bdrm. The one way cassettes go between 16" ceiling joists, the square ones require 22" opening and possible cutting of joists to make them fit.. Thanks for the time you spend posting these videos! -Brian

[@pascalpoulin1561]

After you press SW2 and it flashes "ON", you have to firmly short press SW1 back, after that it'll flash a number and should take a few seconds to go into defrost. I install them units daily in canada and had to figure the defrost since in our climate we need to set the dip switch number 2 to "hard defrost" otherwise it wouldnt properly defrost since the normal setting is too short.

[@garymartin2336]

Thankks for this advice. I installed this unit branded as MrCool. MC tech support is pathetic. Do not count on them for DIY help. What is debugging? I want to test defrost before it gets cold here in Banff Ab. to see if I have wired correctly to have heat strip and fan on AHU run on defrost.

[@micahschoenherr6030]

Would recommend putting it on a stand. I’ve had issues with ice damns.

[@sprockkets]

I think all you were checking is whether or not the unit thinks it needs to defrost. I'm not aware of being able to force any mini split (which I know this isn't, but it acts more like one) into defrost.

[@mattbilodeau2433]

Curious if you ever got it figured out if did you make a video showing how to force into defrost I just went to a gree flexx training today I can't wait to put one in

[@bguy1979]

thanks for the video HVAC guy. You mentioned you were going to install one at your house. Did you end up doing that? Do you recommend them? thanks

[@db0nn3r]

Can you take some amperage readings on indoor and outdoor again but in cool mode on high and low running speeds?

[@Biarkii]

ive installed about 12 or 15 of these split systems so far ranging from 2 to 5 ton and I love them.If I could fit one in my lower crawl space id have already installed one.Long term reliability has yet to be seen so far.Too early to tell.

[@jefferyweber6386]

You can put them with any unit with txv they say

[@badopinion]

Had any duds? Ours was installed last week and it's awfully loud. The worst is the low frequency of the unit. It shakes the walls of our house and it's on a pad, open all around, no rubbing or otherwise. The unit just shakes so much it's rattling itself apart.

[@Biarkii]

@@badopinion outdooor unit? if so it sounds like something is out of balance with the fan or could be something with the compressor,the ones ive intalled havent been mu ch over 35 to 45 decibles at max output on the outdoor unit and that was mostly air noise through the fan and grill, if its the airhandler side sounds like something to do with the fan.

[@Biarkii]

id be putting in a call to the contractor that installed it

[@AZBADBOYz]

@@badopinion The sound/vibration comes from the line set. Insulate both lines and then secure them together.

[@garymartin2336]

I realy want to test this MrCool/Gree rebrand using a Forced Defrost. Any advice? I will be using this unit for primary heat at - 10 degrees F. In our dry winter climate here in the Canadian rocky mountains I do not expect problem icing but have set ODU for "Strong" defrost. I want to confirm the AHU operation in defrost to turn on heat strip and fan. Interesting in this discussion to see that Bosch is a comparable if not actuallly a Gree rebrand unit. These are odd units that energise the reversing valve on HEAT while most heatpumps energise on COOL. A sign of just being an air conditioner with a reversing valve and not a Heat Pump engeneered from the ground up. What do you think?

[@robertthvacadventure8774]

To close to the propane tank? Should it be on a stand for defrost?

[@naarongopaul5435]

I’m doing a 3 ton 18 seer tomorrow. The dip switches had me confused

[@Thermodynamics6543]

You really need the service manual for sure with these inverter systems. It's kinda difficult to locate a good textbook dealing specifically with these types of systems because each manufacturer differ somewhat in their technology especially when it comes to troubleshooting fault codes and entering diagnostic mode. The VRF and VRV systems are even more complicated.

[@jamesg6071]

Have you installed a Gree Multipro unit yet?

[@briancasey7693]

It’s possible your input was being overridden by the thermostat calling for heat, may want to try with the stat off. This is just a guess, I don’t know that system.

[@Arlo360-Official]

Tablet display is impressive in direct sunlight. Didn't see it listed. Did I miss it?

[@HVACGUY]

iPad Pro

[@edwardgarza5104]

I see there's valves at the air handler for the refrigerant lines , are those coils coming charged with refrigerant?

[@HVACGUY]

Yes

[@davidnull5590]

how to force defrost gree mini split? There are at least 6 KZbin videos with that in the title.

[@redneckbryon]

It seems like you can never get away from the barking dogs.

[@analogmoz]

Or smoke detectors with low batteries!

[@kg4muc]

16 amps not including heat strips is really good on the power bill

[@jamespatrick9449]

Is the metering device at the indoor unit on that set up? And I tell you what, I don't think manufacturers make there manuals that easy to understand. At least when it comes to mini splits and what not. Might just be me but I have to read the steps like 20 times and still have a hard time sometimes. Lol. Then once you figure it out it's easy, I guess just like anything else. Preciate the videos.

[@HVACGUY]

It has an eev outside to add subcooling. But, needs a TXV on indoor coil.

[@USA-GreedyMenOfNoIntegrity]

That’s because they are written in Chinglish. You can blame your good old greedy, American corporations, and their executives for that one. Also the same pos for the 40% increase in materials cost in the last two years.

[@maverick3276]

I had the same issue forcing it into defrost until i figured you needed to press sw1 after the sw2. Even with strong defrost mode set i find in cold climates such as Canada the defeost cycle isn't long enough, even if it manages to defrost the coil the water freezes in the pan faster than it can get out. If anyone knows of a way to extend the defrost or fix this issue let me know. I am considering a heat tracing cable in the bottom of the unit next if no other solutions come about.

[@AdamNusbaum]

Heating elements are recommended by other manufacturers in climates cold enough to freeze the pan.

[@robertlamey7612]

It’s getting hard to find manuals if you aren’t a dealer for each brand. We install Bryant but work on every brand. We aren’t a rheem dealer but work on time if them. I’m friends with the TM at Hughes supply and he tried to get me set up on the rheem app for manuals but couldn’t since I’m not a dealer

[@tphvac87]

Why isn’t the discharge line insulated if it’s an inverter heat pump? Nice work as usual?

[@HVACGUY]

This Gree system doesn’t need an insulated liquid line. It is a true liquid line. There’s a TXV in the air handler

[@alainmoreau3267]

Your right 👍

[@AZBADBOYz]

Something nice that MrCool does though. Gree makes MrCool units too.

[@garymartin2336]

...and 2 other rebrands available in Canada. @@AZBADBOYz

[@CucinaCottage]

I have a Goodman Air Handler 2 1/2 Ton with a 10 Kw Heat Strip. I installed awhile back as an experiment before going to full on into a Heat Pump. The 3 Ton Gree Flexx is on the shortlist from the standpoint of price point and performance. The question remains about build quality and reliability. Any comments from all who install? I plan on buying both the condenser and air handler. If I used the 3 ton condenser with the Goodman 2 1/2 Coil would it work? Just curious as former Tech. Thx!

[@DanWessonSpecialist]

They will tell you an air handler with TXV will work with a Gree Flexx if the coil is the same capacity. Too many people have had refrigerant pressures look strange when doing this. I suggest a matching Gree air handler.

[@CucinaCottage]

@@DanWessonSpecialist Dan, thanks I appreciate the advice...

[@mtbphil168]

I installed a 3 ton mrcool, but im getting amperage readings as high as 20 amps even though the Rated Load Amps (RLA) on the placard shows 16 amps. My understanding of RLA is that its a max and typical running amps should be below this. It seems like you've worked on these a lot. What readings do you typically see?

[@HVACGUY]

if it’s over amping like that, it may need to be checked out by a professional

[@mtbphil168]

@@HVACGUY so is that a correct statement that it shouldn't go over 16 amps if the RLA is 16?

[@pixelcontrollers]

@@mtbphil168 If you look at the ratings pages it is normal to go as high as 21 amps.

[@edwardgarza5104]

Is it true u can install this gree condenser/ heatpump with any existing air handler or case coils out there and still use the same thermostat and thermostat wire?

[@HVACGUY]

Actually yes. All it needs is a TXV on indoor coil. And uses standard thermostat wiring, energizing blue in heat.

[@AZBADBOYz]

Long as it's a 410a heatpump type.

[@xzibit8614]

Is it bad that it lost refrigerant?

[@joehead1294]

Depends on how critical the charge is and how much is lost. If it was overcharged it would help, but undercharged would make problems worse. Only he knows but it is almost impossible not to lose some when hooking up.

[@royamberg9177]

Coil has to be cold enough to go into defrost

[@HVACGUY]

That’s kinda what I figured

[@garymartin2336]

It is a forced defrost you wanted to test the operation. The service switches override the sensors. It should have worked.@@HVACGUY

[@snidelywhiplash8923]

Why did you choose to install this relatively unknown brand rather than the tried and true lines like Fujitsu or Mitsubishi, as examples? Ones that are better known and must surely be better supported in the US.

[@HVACGUY]

This name brand is new only to the US, and has a large market share in other countries, especially in Europe.

[@snidelywhiplash8923]

@@HVACGUYThat doesn't help much here. At the end of the video, you mentioned that you were unable to do what you wanted and that the instruction booklet seemed unhelpful and perhaps difficult to understand. I wouldn't think those kinds of issues would be encountered with better known and longer established brands. Were there other reasons to not choose products from one of the others?

[@jaymz0074]

@@snidelywhiplash8923 dude all these inverter systems are different and complicated. This is an ever learning trade with rapidly advancing technology.

[@snidelywhiplash8923]

My question asked why this lesser known brand was chosen in place of others with a bigger presence in the US. Only our host HVAC GUY can answer that. I appreciate that there are changes in the residential HVAC world to an extent but I don't think necessarily any more so than in many occupations.

[@jaymz0074]

@@snidelywhiplash8923 simple research and you'll ve surprised to find that Gree and Midea make the majority of inverter systems out there.

[@emmaa427]

You need valve core depressor

[@ryanbrown5334]

Only thing I will complain about on these systems is the location of the service valves. It’s a tight squeeze to get one on there

[@sprockkets]

There is a part at trutechtools that allows one to only open the valve when you have the gauge or probe on.

[@garymartin2336]

pro to protect the climate.@@sprockkets

[@jerryc3050]

Well, I mean if you as an HVAC expert can't do what you wanted to it to do, I'd be fairly sure a new tech or one just learning may break the system trying to defrost in an emergency case. Or am I way off? In any event, great video. Good game 16 - 6

[@jaymz0074]

This is a field that is rapidly advancing. Plus an hvac technician will never know everything and will forget things along the way.

[@ryanbrown5334]

@@jaymz0074 I completely agree. HVAC isn’t just hot and cold anymore. I live in rural east central Kansas and let me tell you how hard it is to convince these old timers that bigger isn’t better because it won’t have to work as hard! I love to watch the faces and dumbfounded looks when I tell them them that @-22 it’s still going to heat their home

[@davidnull5590]

how to force defrost gree mini split? There are at least 6 KZbin videos with that in the title.

[@jaymz0074]

@@davidnull5590 and?

[@babajifahim3490]

chinese made crap,,,,,,,,they'll kill your business,,,you'd better run from these type of unit,,,almost impossibe to get parts for them,,,,,,,,,,,,,,,,,,,,,,,,,,

[@GoatzombieBubba]

Everything is made in China...Trane needs to start up on this inverter stuff instead of giving their name badges to Mitsubishi.

[@HVACOG]

Are you certain you can’t get parts?

[@edwardgarza5104]

Gree I believe is the top manufacturer company in the world if I'm not mistaken,

[@HVACGUY]

@@edwardgarza5104 tis true.

[@alainmoreau3267]

True

[@robertlamey7612]

It’s getting hard to find manuals if you aren’t a dealer for each brand. We install Bryant but work on every brand. We aren’t a rheem dealer but work on tones of them. I’m friends with the TM at Hughes supply and he tried to get me set up on the rheem app for manuals but couldn’t since I’m not a dealer

[@davidnull5590]

All of the Gree manuals are available to anyone on the Gree website.