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Thread: Ciat PRS1 control problem
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19-07-2016, 09:11 AM #1
Ciat PRS1 control problem
Hi!
Due to a faulty display on a "ciat LW M 1600z 2" I was forced to replace it. After the switch I have noticed that the machine can't manage to get down to the desired setpoint (as it did before). The machine goes down to 0.5 degrees from setpoint but never stops. I reckon it's a problem with the capacity regulation because the capacity used lowers when the water temp lowers but it never gets down to setpoint. It may be a small problem but as it never stops it can't switch the running compressor either so I'm currently only using one comp all the time. I have checked every parameter I can think of but I must be missing something. (Another weird thing is that I cant access the parameter p24 which is the parameter for min position of slide valve.)
Has anyone had the same problem before? Anyone got any pointers?
Kind regards
Fredrik