Hi Ours is cooled by a Haskris R250, which is sized for an XStream also. While our heat exchangers have had a couple of issues, overall the Haskris heat exchangers have performed quite well. They redesigned ours when they found out about our building chilled water. I'm not affiliated with and heartily recommend them.
As for the water itself, I would ***NEVER*** allow building chilled water into the generator. Our water is extremely dirty and the supply is slightly below spec, so we have a pump downstream of the heat exchanger. There are also 2 filters upstream to pull some of the junk out. Lately, startup has required the use of the pump, which I interpret as buildup in the condenser, so that's eventually going to need a cleanout. That was what the redesign was all about. I imagine ours is an extreme case, but the heat exchanger makes up for a variety of ills. Rigaku also recommends a DI filter to keep conductivity low in the water going into the generator, which improves anode lifetime. Building chilled water will never be able to be as low as desired. Besides, facilities people can change things and you'd never know until it's too late... Ed -----Original Message----- From: CCP4 bulletin board [mailto:CCP4BB@JISCMAIL.AC.UK] On Behalf Of Andreas Förster Sent: Thursday, July 24, 2014 10:54 AM To: CCP4BB@JISCMAIL.AC.UK Subject: [ccp4bb] rigaku micromax 007 cooling Dear all, I have a Rigaku MicroMax 007 HF X-ray generator that is cooled by chilled water supplied rather unreliably through the building infrastructure. I was wondering what alternatives exist. Could other MicroMax 007 users share their experiences with alternative cooling solutions with me? Thank you. Andreas -- Andreas Förster Crystallization and X-ray Facility Manager Centre for Structural Biology Imperial College London
