Liebert Level0 Board Upgrade

[lorax808]

Has anyone performed a Libert crac unit board upgrade? I am trying to estimate how long the upgrade takes.

[honesttech88]

I have done only one,and it is quite the job. It took me about 2 8hr days.
You have to totally revamp the wiring.The kit comes with all the wiring harnesses. After doing one it can be done in about half the time i believe.Hope this helps.

[Randy S.]

I did one in under 10 hours a few years back.

Do yourself a favor and talk to Liebert factory support before you start.
I found that there was one wire that needed to land on the HP switches just right, and that the information was not in the kit. This was the type that has two HP switches at each compressor, and I seem to recall that the wire had to land on the terminal that was common to both switches.

Other than that one item, everything else was supplied and went well. Maybe that particular kit was new at that time, I don't know. I do know that I would have spent considerably more time on the conversion had I not called the factory tech line first.

[HvAckid82]

is the customer actually going to do this? I priced one up and it didn't make any sense to do because the unit was 20 years old so the total upgrade would have been 1/4 of a new unit. So they went with a new unit.

[Liebert_Tech]

If it is on a chilled water unit then it will take 2-3hrs with 2 people. 3-4hrs with 2 people on DX units. There is alot to this upgrade from lvl 0 to Advanced Microprocessor. You will have to trim the front panel for the AM LCD Display to fit. All I can say is take your time and follow the instructions close. If you do that you will do fine.

[freonguy]

Lorax:

I too have done one - I don't recall the time exactly, but it was in the 15 hour range - a second one would be quicker - no doubt.

What I wanted to add was the help of having an AMP # 305183 pin tool if you don't have one already - to swap out the barbed pins in the plugs. They are cheap ( under $20. ) and ease the job alot.

Just my two cents -

Freonguy