Awesome job mate, love how thorough you are in your work and explanations. I know those pitted coil bends can be very tricky trying to repair. Solid work 🤙🏼
This is a two pipe heat recovery so there is no Refrigerant Recovery Mode as you’re pulling from both sides. The manuals don’t even have it as an option.
Not with City Multi. They don’t even provide you with an option to do it via their Functions list. All their systems are two pipe, including their Heat Recovery, so you’re always pulling from both sides of the system. All other manufactures VRV/F I’ve worked on yes, you do need to put in into a recovery/evacuation mode.
I really appreciate your help mate. I am changing a compressor next week on one and it’s the first time I do Mitsubishi I am usually working on Toshiba and mostly Daikin. Cheers 👋
I unfortunately don’t own that. The only I’ve used in the past is works. It wasn’t available when I did this job. I just went back to replace the coil on this system and I used it there.
you make this look too easy bro😂....i remember on my first job how i tried to fix a leak on a coil and set my torch wrong...made the hole bigger and dropped the melted copper drops into the coil🥴
I believe VRV 4’s don’t have a pump down function you can set. Depending on the system, you can just put it in forced cooling operation and close off the required valves until the refrigerant is within the system. Or, pump down as much as you can, close off the service valves and recover the rest.
Thanks mate. Yeah massive job. Took two days to get it back up and running. I have a dual cab with a service body on the back. A work van would be ideal for work purposes, but having kids I need the dual cab.
You're the most patient tech I've seen
I try my best to remain calm. Sometimes it’s easier than others 😂
Awesome job mate, love how thorough you are in your work and explanations. I know those pitted coil bends can be very tricky trying to repair. Solid work 🤙🏼
Thanks mate, that’s always nice to hear. The heart rate increases trying to cut away the metal bracket that’s for sure 😂
Nice work mate and well explained. Days like these I try to pull in an apprentice. So much gear to lug in / out hey.
Thanks mate. Haha absolutely. I had one there on the first day to help with all the gear. The amount of stuff you need is crazy
Can you show refrigeration recovery mode settings please
This is a two pipe heat recovery so there is no Refrigerant Recovery Mode as you’re pulling from both sides. The manuals don’t even have it as an option.
Great work man. Getting to know your channel. Thank you.
Glad you’re enjoying the videos mate. It’s always nice to hear.
what is the big black thing inside the unit. It looks like a compressor
Suction accumulator. Compressor is in the silver box located bottom right.
Hi don’t you need to put the unit on recovery mode to open all valves or something
Not with City Multi. They don’t even provide you with an option to do it via their Functions list. All their systems are two pipe, including their Heat Recovery, so you’re always pulling from both sides of the system. All other manufactures VRV/F I’ve worked on yes, you do need to put in into a recovery/evacuation mode.
I really appreciate your help mate. I am changing a compressor next week on one and it’s the first time I do Mitsubishi I am usually working on Toshiba and mostly Daikin. Cheers 👋
Easy mate, happy to help. Mitsubishi use dip switches on the control PCB for functions. You set the SW4 bank of dip switches with SW6-10 set to on.
RIP HVACR AUS. gone but never forgotten
Hey where’s CPS MT69?
I unfortunately don’t own that. The only I’ve used in the past is works. It wasn’t available when I did this job. I just went back to replace the coil on this system and I used it there.
you make this look too easy bro😂....i remember on my first job how i tried to fix a leak on a coil and set my torch wrong...made the hole bigger and dropped the melted copper drops into the coil🥴
That sounds like a rough time 😂 manufactures love to cook us with their crazy thin copper coils
Which mode need to be set for the gas pump down in Daikin vrv 4?
I believe VRV 4’s don’t have a pump down function you can set. Depending on the system, you can just put it in forced cooling operation and close off the required valves until the refrigerant is within the system. Or, pump down as much as you can, close off the service valves and recover the rest.
That unit is probably 10 years old, taking a big risk attempting to fix it, coil is going to spring another leak for sure, but awesome work.
This was only a temporary fix. Mitsubishi Electric had a 3-4 month wait on a new coil. I’ll be heading back in the next few weeks to replace the coil.
Solid effort man! Looked like a pretty big job.
Do you run out of a van or a Ute?
Thanks mate. Yeah massive job. Took two days to get it back up and running. I have a dual cab with a service body on the back. A work van would be ideal for work purposes, but having kids I need the dual cab.
Just cut out U bends and repalce with new one ...
Could do that too. We will be going back in a few months to replace the coil.