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Member Post posted an update February 19, 2026
We are looking to do some start up work for these new mag bearing chillers. Anyone had any exposure or experience with them…?
mbt.midea.com
MagBoost Magnetic Bearing Centrifugal Chiller
Midea MBT,MagBoost Magnetic Bearing Centrifugal Chiller,Magnetic compressor,High-speed permanent magnet motor,High efficiency direct-drive technology,Heat transfer optimization through oil-free design,Full falling-film evaporating technology
Member Post, Member Post and 6 others11 Comments- View more comments
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Member Post shared a post in the group
March 12, 2026Centrifugal Chillers March 12, 2026- View more comments
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Member Post to Member Post March 10, 2026
March 10, 2026 (edited)
Chiller Check Sheet
Wessel Bakker (who works for a large OEM) put together a really nice chiller service spreadsheet, and was kind enough to share it with everyone.
You fill it out like a normal log sheet, and the spreadsheet automatically:
• Calculates system performance
• Compares it to AHRI standards and nominal conditions
• Calculates flow and refrigerant…
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Member Post posted an update February 20, 2026
Trane CVHE450, 2003 Model, Overhaul 2017
Looking for some advice on the following… Units needs the Motor windings temperature sensors replaced. Owner wants to do it in the field. Trane recommends to send the motor off to be redone.
Has anyone replaced these in the field? Does Trane make a kit with the parts needed to epoxy them into the stator in the field?
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Member Post posted an update March 7, 2026
March 7, 2026 (edited)
Company Membership Onboarding
I had some questions about adding members with a company account.
For those of you with Company memberships, We made a quick onboarding video that walks you guys through how to send bulk invites for technicians under your company account.
Let me know if you have any questions on how to do this.
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Member Post posted an update March 6, 2026
Wsc063
Hello
could you support me with the following diagram? I’m having problems with a mcquay wsc chiller because of the low engine current problem, at the time of checking I found that the % rla does not go up from 0% and when I want to see the electrical diagram there is no information why it is destroyed
Label 330273001
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Member Post posted an update March 6, 2026
BLUEBOX
Hi guys!
I’m looking for some tech books, manuals or anything from which I could learn more about BlueBox by Swegon…Do you have any idea where could I find something useful?
Tnx in advanced!
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Member Post posted an update March 6, 2026
It should buff out lol
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Member Post posted an update May 20, 2025
@Member Post
Hi Everyone.I had this call on a Trane CVHF870. Was tripped on oil differential.
I checked the pompe on manuel = amp was ok, pressure was swinging, sight glasses empty. So I added 2.5 gallons of OEM oil and did the test again. The pressure got stable, oil level still not visible.
Conditions: condenser water in was at 46°F
I ran…
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Member Post posted an update February 26, 2026
Bitzer Compressor
Would any have information on the start cycle for a Bitzer CSV screw compressor?
About 10 seconds into the run cycle, a 230 volt 10 amp fuse is opening. Just trying to see what actually happens when its starts up. Its a VSD compressor.
I have checked all the auxiliary solenoids within the heat-pump, panel fans etc but can’t seem to get to…
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