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Great video!

Just took that VRF training I believe the mA stat is to connected to TB15 at indoor air handler. That thermostat is not connected to the M-net 29vdc, I believe 😂😂😂, awsome tip

THANK you

I’m installing a R2 series TransuBishi. We’re having COM errors??

Great video yet again! Does Mitsi have oil return operation like daikin vrv?

Great tips! Is fault finding & repair work harder with vrf’s than other hvac equipment? I wouldn’t be surprised if the answer is yes

LEV4 is the vapor injection for the compressor in heat mode during very cold weather. It lowers the compression ratio to achieve two thing: first, increase the head pressure in heating, second, it keeps the system energy efficient. And that’s how these systems can still operate in very low ambient conditions in the winter. Great work man. Love your video.

I miss this chanel

Questions should the discharge pressure and liquid pressure be the same psig reading?

Thank you for the video. Which 3 VRFs system manufacturer do you rate best?

Link to the table?

Great video! Do you know if there is a way to calibrate these thermostats? if the space temp reading is off?

For a G+2 floors in coastal florida with high humidity and heat with each floor of 3000K sq Feet what do you think of a hybrid VRF (like Mitsubishi or Daiken) with zender Air handler.. is that a good set up? or do you think there is better product than that

Thanks for sharing your knowledge.

Sorry, very poor explanation !

Some video presentation please.

I do understand but now I have a system same Mitsubishi vrv but when set on heating after sometime goes back to cooling on it's own on a wired remote so what can be the possible fault or how can I rectify this?

Awesome training 👌 👏 thanks brother..

Great

Can you talk about Samsung VRF?

Hey bud I am an hvac tech Haven't done much mini. I have a project coming up. I want to ask you a few questions. Give me a call at your earliest convenience 4074623003 shaan

My vrf unit have 3 indoor one outdoor ,compliant is one room ac not reach temperature below 21 pls reply

Hello air I need ur help regarding vrf tosot unit

hi sir, how to repair E31 error?

Dammm thanks man

My condo VRF system do not work hot/cold simultaneously. Do you guys think this can be fixed?

Interesting and educative content on VRF. Thank you Sir. Please do you have a Facebook page?

where is part 3 and 4?

Hello brother where are parts 4 and 5? What is the difference between VRF and VRV?

How do I troubleshoot error 6600? I just installed an additional FCU and had this error showing after every 5mins. After doing alot of test and check, I just couldn't solve it. I also tried to connect the transmission to the other outdoor unit and then the error changed to 6607. Thank you.

Had 6607 this morning, as well as a 7100. Currently have a master/slave pury-500 giving me a 1500 (overcharge) issue. Unit has been running over a year, and the problem has literally come up in the last 3 weeks. Happens sporadically. Running 14 indoors (cassettes) all lev/shell temp/discharge temp:pressures check out. Accumulator ices up pretty badly, leading me to think it’s letting liquid back from bc box. Any other help would be appreciated 👍🏻

Nice work buddy very professional👍👍

You nailed it! Explained it better than some of the experts

Thank you so much for such a good technical video!, hope you can keep up with creating these great and detailed explanations.

Hi John... Cool explanation. This will help me famliiarized about vrf. Can i ask u a favor? Please subscribe to my channel Raccol air conditioning. Thank you

Liked. Clean cut on vrfs

Thanks for the insight! I dont do installs but I sell the products to the contractors and have been digging and digging to try and find some training so I can understand enough to know how to help them.

When will you post more videos ?

hey john great videos,where do I find the other parts of 1-4 on found 1&2 on utube,l’m in swfl

Good video

ruclips.net/user/Luciano60006

Make more videos they're informative

Good video

Need some more videos man!

I'm interested in the control aspect of it , the communication and error codes

Just had a central control is installed with unshielded comm wire, unit would connect and control system but would go into 6607 after about 10 minutes, luckily all M-net had shielded cable, so I was able to get temporary operation without central control.

Please make a video using the service tool, also it seems all Mitsubishi thermostats wait until the indoor temperature is 2 degrees past the set point to turn on, do you know if there is a setting that can be changed? I can’t find anything about it in the service manual and the Mitsubishi tech support claims it’s the unit running in Celsius unit while displaying Fahrenheit.

Lovel explaination.

Great dear

Just got hired as a maintenance tech on a building that has the LG VRV system on one of their floors, thanks for making this videos. 👌🏼👏🏼