marc5180
27-02-2008, 06:32 PM
I was sent to a job today at the airport and asked to take out a cassette from a room that was being turned into a walkway. I was told that it was a split unit so should be relatively easy.
Once i got there i noticed straight away that these were in fact from a Mitsubishi Electric VRF. My problem is these have been installed with no reference of how many indoors are fed from the outdoor. I have managed to find 5 but there could be more, nobody knows.
I plan on pumping the unit down, the standing charge is 10KG plus additional which again i dont know 'cos it hasn't been written down:mad: and whatever is left then i will reclaim it.
When removing the cassette and the pipework can i cut the pipework back as far as i can to the refnet and just braize them up?
Also what about the wiring "daisy chained" into the unit? Can i just connect these together in a block connector? There is ony 2 cables coming in, one in and one out to the next unit so i imagine that i can but what else will i need to change? Will i have to change address settings on the outdoor PCB? If i do i dont know what address this cassette is because it hasn't been labeled up.
Lastly before i left the spark took out the fuse spare to the indoor unit ready for removing tomorrow but then on another controller off the same system a fault flashed up after about 30 mins which said 051 ( outdoor unit?) then 1102 and it said 0DegC on the controller.
The model number for the indoor is PLFYP20VCME.
Once i got there i noticed straight away that these were in fact from a Mitsubishi Electric VRF. My problem is these have been installed with no reference of how many indoors are fed from the outdoor. I have managed to find 5 but there could be more, nobody knows.
I plan on pumping the unit down, the standing charge is 10KG plus additional which again i dont know 'cos it hasn't been written down:mad: and whatever is left then i will reclaim it.
When removing the cassette and the pipework can i cut the pipework back as far as i can to the refnet and just braize them up?
Also what about the wiring "daisy chained" into the unit? Can i just connect these together in a block connector? There is ony 2 cables coming in, one in and one out to the next unit so i imagine that i can but what else will i need to change? Will i have to change address settings on the outdoor PCB? If i do i dont know what address this cassette is because it hasn't been labeled up.
Lastly before i left the spark took out the fuse spare to the indoor unit ready for removing tomorrow but then on another controller off the same system a fault flashed up after about 30 mins which said 051 ( outdoor unit?) then 1102 and it said 0DegC on the controller.
The model number for the indoor is PLFYP20VCME.