Good for you homie glad you had someone there to help out. My company just sends us expecting we know everything. Everyday gets easier if you're willing to learn. We all need to keep this trade alive, keep doing what you're doing.
Hey nice to see you again, this is more my kind of day job. Familiar with lgmv. Keep following you maybe i can learn a trick of 2 from your video's again. Greats from Holland
Its good to learn on these systems. I just installed and commissioned 20 Multi V 5 VRF system and 19 Multi V S systems. Its great to work hands on this system. Cheers keep up the good work!
I'm in touch with LG for vrf installation.... confused between Multi V 5 and V S... application is residential with 6 indoor unit?? What's your suggestion between the two models?
I work for the LG rep in central Iowa, when you address these our practice is to have the installing contractor leave the outdoor unit on to ensure crankcase heaters are running. Once we get to the step of auto addressing the units we turn all units off for 15 minutes after changing dipswitch 3 for higher baud rate communication. During that time we normally go through and set up the HR boxes to set the number of ports being used while confirming no pipes got mixed up (sadly common haha). Also a good time to go through and assign hexadecimal addresses for a AC Smart if you have one (you should get a LG remote controller, allows you to address them wirelessly). When turning them back on, the indoors need to come on first and we normally wait 5 minutes after that to turn on the outdoor. This eliminates the bugs you got when trying to hunt down the missing units. As an apprentice I enjoy the cycle view on LGMV to see the visual representation of the system instead of the raw data. You can change the units of measurement being displayed using the settings bar at the top so you can see normal units.
i used to work or LG Rep in NYC. My favorite was going to a job for a start up and when i ask for proof of 500 micron, like even a pic i was fine with. The contractor shows me the unit with all gauges off and say i got 500 microns let the unit in a vacuum and took off my gauges. I tell them how do i how many microns the system is now. They say ohh , umm idk. Take my stuff and leave. Call us back when u vacuum it correctly
Do you still work for them? I am helping the techs at my university fix a 2018 Multi V 5 system that was improperly setup, and one of the current issues is trying to switch the system to Gen 4 mode(Dip switch 3), as the installers left it in Gen 2 mode. Initially we tried what the service manual recommended which was to set the dip switch and then hit the reset button on the ODU, but it caused a few IDUs to go into CH-05, and then all of them went into a CH-204 error. We turned the dip switch back off and got the system working again after power cycling the HRUs and IDUs. Last week I found a unique guide which mentioned the following sequence: Power off all ODUs, IDUs, and HRUs associated, wait 10 minutes, turn on dip switch 3 and power up the ODUs, wait 3 minutes, power the IDUs and wait 3 minutes then perform auto-addressing to prevent any duplicate units/addresses that would cause a CH-53 error. Does this sound right or should we power up the IDUs first instead of the ODUs?
@@Rodj12341 You need to preform an auto address sequence as the manual calls it out. Ideally no special considerations are made for powering anything on in specific order. On startup i prefer IDUs first then ODUS. Exception is wall hung units, they attempt to connect gen4, then automatically switch back to 3. Have to power cycle those if they don't come in. Ensure dipswitch 3 is up on the master ODU, wait three minutes after powering the ODU and press and hold the red button on the main pcb. Should return number of IDUs, followed by HR boxes. Once you have everything addressed an auto pipe detect (for heat recover systems!) is required per the manual as the mapping will have changed. Suggest IOM for that sequence as my explanation here would just be confusing.
Let me say. Tell Manny to start his own Channel. Only about HVAC Mini-splits and such. Not the big RTUs and residential systems. It could be very popular as they are a different animal in many ways.
It's really not complicated... But if you invest in the laptop and connection box setup your good to go I did Samsung dvm s and had the connection box had to turn it in when I got the boot...
I really wish our industry wouldn't keep going toward the mini split/vrf. Such a pain to work on. I can work on a 2500 ton chiller but , we need tech support for any mini split
I have mad respect for you guys. I had it with racks after only 18 months. This job is giving me much more time at home with family. But this was a fun job.
I am just curious.. why not use guages to see what the pressure was? The contractor should have wrote inside the door the holding pressure and date. This way you could see for any micro leaks. Then don't the Apion core tools have a rubber o ring?? If you don't kill them they will work. Thanks for sharing.
I’m in north Texas, DFW area. I think starting pay around here for commercial is about 16-18$. I think. Residential guys maybe like 14-16$ with commission. I’m just spitballin’
Sparky? I was reading some stories written by a guy who served on a Russian nuclear submarine. Their electrical guys were called "sparky-assed ones". Something worked in a very similar way in these two distant places (-!
@@bohanger6315 the reason I was asking is because I did a job like 2 years ago it was a heat recovery unit and for that I needed to attend a LG seminar and I was hoping they got rid of that rule made my installation a lil more complicated than usual. So just went back and check the paperwork that they gave us And it says: Y-branch-20 in rule Minimum of 20 in of straight piping must be maintained into,out of, and between all y branches, headers, heat recovery boxes etc. To maintain velocity and laminar flow. Y-Branch traps and 20 in rule: The Minimum distance between the Y branches or between the Y branch and elbow should be at least 20 in when installed. Heat recovery units: 20 inch Minimum recommended between all fittings. Like I said I'm not criticizing I was just hoping for that rule to be away.
My boss had that conversation with the factory too. It’s strictly a laminar flow issue from what I’m told, causing high noise. It’s not necessarily a rule from my understanding. More of a suggestion. You are dead on though
your vacuum procedure is not correct..check in manual or details in outdoor for vacuum procedure theres is need to program in outdoor to vacuum to open the electronic expansion valve
Hell Yeah my favorite Rookie is back!!! This made my day a whole lot better. Thank you Mr. Reuben hope all is a well!
Thanks alot bro. I’m sorry for the long absence. I’ll be around.
Good for you homie glad you had someone there to help out. My company just sends us expecting we know everything. Everyday gets easier if you're willing to learn.
We all need to keep this trade alive, keep doing what you're doing.
LG currently has a good online class you can sign up for that explains all about these LG Multi V units, well worth the money
Not a start up you see everyday, I've worked on a few they can be difficult, Great video, keep up the good work!
First time to your channel. great stuffs here. Thanks for sharing.
Keep it up my dude. Looks like your enjoying your new gig
I don't know how I missed this but great video. Thank you
Good 1 Rookie ...Glad your back in the saddle ...
Nice Rookie ! Always learning yup! New Vrf to systems too! Got pink extension cord too!!
Nice to see you back Rooky I enjoy watching you videos
Luis Guevara thanks bro
Glad to see you making video's. Thanks man.
High tech. Glad to c ur back
Hey nice to see you again, this is more my kind of day job. Familiar with lgmv. Keep following you maybe i can learn a trick of 2 from your video's again.
Greats from Holland
Well hello To Holland From Texas. Thanks for following bro
Its good to learn on these systems. I just installed and commissioned 20 Multi V 5 VRF system and 19 Multi V S systems. Its great to work hands on this system. Cheers keep up the good work!
FaheeM MoHammed thanks. Looks like I can learn from you.
I'm in touch with LG for vrf installation.... confused between Multi V 5 and V S... application is residential with 6 indoor unit??
What's your suggestion between the two models?
Glad to see you return Rookie!
Shaun Mason thanks alot bro. I’ll be on more often now. Lol
Thanks for sharing. It's different world than supermarket refrigeration
Great informational video !!
As always brother enjoyed the video, glad u back it's been a while. Shout out from South Africa #HVAC_VRF_TECH
Thanks a lot bro
VRF, Multis, kPa, Celsius, splits everywhere? Wow, for a moment I thought you were in Europe Ruben. You're welcome if you wish! 😁
Lol. Thanks bro. It’s didn’t
That was a great video. Thanx for sharing.
Great video, glad to see all is good with you. I had no idea you could run a vacuum pump with no oil cap.
Thanks bro
I've worked on a lot of VRV and VFR units, they're so tightly packed inside. Also the control PCBs take a lot of effort to understand.
I work for the LG rep in central Iowa, when you address these our practice is to have the installing contractor leave the outdoor unit on to ensure crankcase heaters are running. Once we get to the step of auto addressing the units we turn all units off for 15 minutes after changing dipswitch 3 for higher baud rate communication. During that time we normally go through and set up the HR boxes to set the number of ports being used while confirming no pipes got mixed up (sadly common haha). Also a good time to go through and assign hexadecimal addresses for a AC Smart if you have one (you should get a LG remote controller, allows you to address them wirelessly). When turning them back on, the indoors need to come on first and we normally wait 5 minutes after that to turn on the outdoor. This eliminates the bugs you got when trying to hunt down the missing units. As an apprentice I enjoy the cycle view on LGMV to see the visual representation of the system instead of the raw data. You can change the units of measurement being displayed using the settings bar at the top so you can see normal units.
Bo Hanger bro this was day 1. Lol. I’m learning as I go
Just wanted to get you the tips that I learned the hard way lol. I’m still learning with you. Great videos man!
i used to work or LG Rep in NYC. My favorite was going to a job for a start up and when i ask for proof of 500 micron, like even a pic i was fine with. The contractor shows me the unit with all gauges off and say i got 500 microns let the unit in a vacuum and took off my gauges. I tell them how do i how many microns the system is now. They say ohh , umm idk. Take my stuff and leave. Call us back when u vacuum it correctly
Do you still work for them? I am helping the techs at my university fix a 2018 Multi V 5 system that was improperly setup, and one of the current issues is trying to switch the system to Gen 4 mode(Dip switch 3), as the installers left it in Gen 2 mode. Initially we tried what the service manual recommended which was to set the dip switch and then hit the reset button on the ODU, but it caused a few IDUs to go into CH-05, and then all of them went into a CH-204 error. We turned the dip switch back off and got the system working again after power cycling the HRUs and IDUs. Last week I found a unique guide which mentioned the following sequence: Power off all ODUs, IDUs, and HRUs associated, wait 10 minutes, turn on dip switch 3 and power up the ODUs, wait 3 minutes, power the IDUs and wait 3 minutes then perform auto-addressing to prevent any duplicate units/addresses that would cause a CH-53 error. Does this sound right or should we power up the IDUs first instead of the ODUs?
@@Rodj12341 You need to preform an auto address sequence as the manual calls it out. Ideally no special considerations are made for powering anything on in specific order. On startup i prefer IDUs first then ODUS. Exception is wall hung units, they attempt to connect gen4, then automatically switch back to 3. Have to power cycle those if they don't come in. Ensure dipswitch 3 is up on the master ODU, wait three minutes after powering the ODU and press and hold the red button on the main pcb. Should return number of IDUs, followed by HR boxes. Once you have everything addressed an auto pipe detect (for heat recover systems!) is required per the manual as the mapping will have changed. Suggest IOM for that sequence as my explanation here would just be confusing.
Ha my first time working on VRF I didn’t no what the re net headers were
Your good 👍
Hey Buddy enjoy your new journey.
I wish you good luck.
Konstantinos Tsoukalas thanks bro
Very awesome stuff!!
I like it so far
Good video nice that you are back !
Darek Cieslik thanks bro
@@rookierefrigeration4357 you too bro you too !
Good to see you rookie.
Thanks bro. I’m still getting through this timeframe of all the changes I made. It’s going good bro. Slow but good
That was really cool R👀kie 😎👌
Thanks SK
Nice 👍
This is like watching a 5 year old with ADD. It leaves a number of questions unanswered.
I've been to a chiller tear down school in Dallas.
Let me say. Tell Manny to start his own Channel. Only about HVAC Mini-splits and such. Not the big RTUs and residential systems. It could be very popular as they are a different animal in many ways.
VRF looks like "the future".
(VRF? I thought they were talking about TXVs. "TXVs are 'variable refrigerant flows', right?")
Nice
great job rookie
Neilvester Victor thanks
Cool
Man any good videos on wtf a vrf is and other info on them
It's really not complicated... But if you invest in the laptop and connection box setup your good to go I did Samsung dvm s and had the connection box had to turn it in when I got the boot...
Lol. Yeah I’m gonna try to learn all this. I like it
Hi I am indian nice work bro
Thank you
What brand is the line set? Insulation looking good.
I really wish our industry wouldn't keep going toward the mini split/vrf. Such a pain to work on. I can work on a 2500 ton chiller but , we need tech support for any mini split
Josh Stevens lol. True. I was told this, “treat it like a computer, not an AC system”. Lol
Man your better and braver than me after 20+ years in market ref. I couldn't do that
I have mad respect for you guys. I had it with racks after only 18 months. This job is giving me much more time at home with family. But this was a fun job.
@@rookierefrigeration4357 I been chomping to get out and work with ya but guess we gotta met up for a beer after work sometime
Any time bro. I thought you were in Vegas or something like that
@@rookierefrigeration4357 ya but I have an offer to be lead in NM. Not digging the people here and no hunting grounds lol
Lol. Do what is best for you bro.
How was your transition from residential HVAC over to this? Was it pretty hard or rather easy to pick up since you had HVAC background?
🤩🤩🤩
Cool video! Why didn’t installing contractor use ring or spade terminals on connections? Seems a little hackish imo
VRF looks like "the future".
(VRF? I thought they were talking about TXVs. "TXVs are 'variable refrigerant flows', right?")
I noticed that when you added the trim charge, the micron gauge was still attached and being filled with r410a. I’m I right or am I wrong ?
Just an FYI most VRF Manufactures including LG will not approve the use of Nylog to any refrigerant connections.
Niiiiiiice
👍
Welcome bak
Starting up LG's. You with Texas Air Systems now?
Maybe lol.
I am just curious.. why not use guages to see what the pressure was? The contractor should have wrote inside the door the holding pressure and date. This way you could see for any micro leaks. Then don't the Apion core tools have a rubber o ring?? If you don't kill them they will work. Thanks for sharing.
Dave K short story, they didn’t write it down so we had nothing to go off of
Can I ask something I incounter a multi V 2 indoor 1outdoor the other indoor unit is not cold can I ask what is the problem
Please help me thank you
Bro what is that evac setup you have??? Bad ass!
TruBlu hoses. The pump sucks. 😂
Is this in america? I am trying to get the single fan multi V S system too.
Новички обычно начинают с дозаправки хладогентом.
Just a question for a rookie Refrigeration what state you in and what's the hourly pay to start u dont mind me asking?..
I’m in north Texas, DFW area. I think starting pay around here for commercial is about 16-18$. I think. Residential guys maybe like 14-16$ with commission. I’m just spitballin’
Texas air? I’ve been to the LG class down in Texas. Was in class with a bunch of Texas Air guys. I guess they are the big LG player in Texas.
I need to go to lg and AAON class. Hopefully soon
You working for Texas air now?
Yes sir
+1 nıce
Sparky? I was reading some stories written by a guy who served on a Russian nuclear submarine. Their electrical guys were called "sparky-assed ones". Something worked in a very similar way in these two distant places (-!
I thought LG doesn't allow less than 20 in between 90S or is just on heat recovery units?
No idea bro.
20 inch rule is 90 to the indoor unit/head. IDU to Y branch is 3 feet min.
@@bohanger6315 the reason I was asking is because I did a job like 2 years ago it was a heat recovery unit and for that I needed to attend a LG seminar and I was hoping they got rid of that rule made my installation a lil more complicated than usual.
So just went back and check the paperwork that they gave us And it says:
Y-branch-20 in rule
Minimum of 20 in of straight piping must be maintained into,out of, and between all y branches, headers, heat recovery boxes etc. To maintain velocity and laminar flow.
Y-Branch traps and 20 in rule:
The Minimum distance between the Y branches or between the Y branch and elbow should be at least 20 in when installed.
Heat recovery units: 20 inch Minimum recommended between all fittings.
Like I said I'm not criticizing I was just hoping for that rule to be away.
My boss had that conversation with the factory too. It’s strictly a laminar flow issue from what I’m told, causing high noise. It’s not necessarily a rule from my understanding. More of a suggestion. You are dead on though
Wait you let it warm up? No no that takes to long just send it, my boss
Lol. Agreed
Is that what’s considered a city multi? I don’t work on this stuff so idk... 🤷🏻♂️
Reefer Tech Mark I believe so. Those things are cool
Rookie Refrigeration that is pretty cool shit man.... we do some high rise work in downtown Charlotte. Mostly chiller work
I’m trying to dig deep into these.
I have the same unit can you help
vicente salas I’m new to this bro. But maybe I can
Stranded shielded two wire
trane cgaf chillers you’ll use laptops
Baby VRF
I gotta start somewhere 😂
Lol, same here. Keep up the great content!
No need for nylog on your Valve core removers
Where is that fieldpiece 8cfm vac pump? Throw that yellow jacket in the trash.
It was the company where I was at. I’m gonna try to get one here 😅
It's cool. I think the NAVAC one is better. It's more important to have TruBlu hoses though regardless.
Electronics. Great as long as everything is in order. Then the electrician miss wire
I always hear bad crap bout them
your vacuum procedure is not correct..check in manual or details in outdoor for vacuum procedure theres is need to program in outdoor to vacuum to open the electronic expansion valve
typical electricians
Nice 👍