OK, I try to push in some gas into system. Seems to be cooling now.
I did turn on all that I could manually from inside the Paper Container. I will monitor for a while today to see if it manage to keep things cool inside. Groete Matthys Maree SKA South Africa – Carnarvon Tel: 021 506 7300 ext.#1035 (Carnarvon, Klerefontein) Web : www.ska.ac.za From: [email protected] [mailto:[email protected]] On Behalf Of danny jacobs Sent: 18 December 2014 05:53 PM To: PAPER List Subject: Fwd: Cooling ---------- Forwarded message ---------- From: Matthys Maree <[email protected]> Date: Thu, Dec 18, 2014 at 8:12 AM Subject: RE: Cooling To: danny jacobs <[email protected]> OK Danny I will only be on site tomorrow again, and try to see if I can get it cool again. Lets hope it is something easy. Groete Matthys Maree SKA South Africa – Carnarvon Tel: 021 506 7300 ext.#1035 (Carnarvon, Klerefontein) Web : www.ska.ac.za From: danny jacobs [mailto:[email protected]] Sent: 18 December 2014 04:11 PM To: Matthys Maree Cc: PAPER List Subject: Re: Cooling Danke Matthys! We don't have auto-shutdown on all racks partly because we can't bring it back remotely and partly because the temperature box is not in the power control loop. The ideal situation would turn off everything but a core of absolute necessities (paper1, the switch, and the nti box are my first choices). We'll look at our heat budget and try to come up with a 90% shutdown solution. If you can turn on the three things I mentioned, we'll be able to monitor the temperatures remotely. Thanks, ~Danny On Thu, Dec 18, 2014 at 4:34 AM, Matthys Maree <[email protected]> wrote: Hi I still struggled to get the PAPER container temperature below 40degC, and had to turn off all racks. We still did not find the problem on the cooling units. I will attempt to re-gas this unit tomorrow when I have the required gauges and stuff, and hopefully it will run for a while. This might be risky, because our staff will be away for most of the time between 24th Des and 5th Jan, and now that we know this unit is not 100%. Is it possible to implement an auto shutdown of all rack when air temp reach a certain value? This work pretty well on one of our other containers. Let’s see how things go tomorrow, and I will keep you up to date on my progress and findings. Groete Matthys Maree SKA South Africa – Carnarvon Tel: 021 506 7300 ext.#1035 (Carnarvon, Klerefontein) Web : www.ska.ac.za -- National Science Foundation Fellow Arizona State University School of Earth and Space Exploration Low Frequency Cosmology Phone: (505) 500 4521 <tel:%28505%29%20500%204521> Homepage: http://loco.lab.asu.edu/danny_jacobs/ -- National Science Foundation Fellow Arizona State University School of Earth and Space Exploration Low Frequency Cosmology Phone: (505) 500 4521 Homepage: http://loco.lab.asu.edu/danny_jacobs/
