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Thread: For the chiller guys
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07-09-2010, 04:51 PM #1
For the chiller guys
I was looking at an antifrost fault on a MultiClima chiller today. (Just so you know why I had it open)
I don't get much practice on chillers in general, so wanted to ask a couple of general questions on parts of the fridge circuit itself:
a) What is the purpose of liquid injection (controlled by a solenoid valve) into the evaporator just after the TEV?
b) What is the purpose of hot gas 'by-pass' (controlled by a solenoid valve) straight back into the suction line?
This specific chiller has 2 x 3 cylinder recip compressors, 1 on each circuit; each compressor has 2 unloaders. It has 1 common plate evaporator with normal TEV's.
While I'm asking, I have also come across a slightly different setup on a Ciat chiller, where they have the discharge line tee off through a capacity valve and also into the evaporator just after the TEV. What's it for?
Thanks
CraigIf at first you DO succeed, try to hide your astonishment!!
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