serverroomcooling - I do not know if you are still around - I have been reading this thread with great interest.
I have similar situation. The load is very similar. The biggest difference is that I am in up-state New York. I am much more worried about operation during the winter than the summer.
I have not read the entire thread yet - do I understand correctly that the Trane system is working but you are still putting in the Liebert unit to alleviate all worries?
What modifications were actually made to the Trane unit?
Was the duct changed to direct the air to behind the racks?
Trane might be good all year, added a freeze stat and some other TXC thing....the other guys can rememeber what it was
I am putting in an APC system for summer use, or all year, haven't decided yet, we may get metered for electricity since it's such a large unit, so we may just use it for the summer since the Trane has been working fine since we got it going right
winters are different for you!!! I won't even think about suggesting...that's way out of my league
can you guys believe I am still waiting for this unit to be installed??? This is getting rediculous.....I really should get someone here to check my subcool and superheat readings now that the temp is avg in the high 80s low 90s everyday....I hope you are impressed that I didn't say supercool and subheat!!!!
anyway, I left a message with the hvac contractor again today, let's see what they come back saying
Well this is the busy time and you actually have a working system at the moment so your not high on the priorty list i bet. So how is the system holding up in 90 degree whether.
Do you have a temperature log? If so what are the temperature differences on the weekend when the main building system is off?
Time, now that’s always been a key factor in almost every discussion we’ve had on this thread now hasn’t it….lol. I do agree with you that the subcooling, superheat, and the entire HVAC system should have an operational run test performed on it ASAP.
As for the HVAC contractor you’ve hired to do this future installation project, hopefully its not too much in the future considering your present weather conditions in FL. But then again, as always………we’ll just have to wait and see.