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Thread: carrier freeze protection fault
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16-09-2020, 02:20 PM #1
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carrier freeze protection fault
Hi All,
I have a carrier twin screw aircooled chiller that keep failing on freeze protection at night when it has no run command.
Any ideas of what could cause this fault?
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16-09-2020, 03:34 PM #2
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Re: carrier freeze protection fault
What is the nighttime ambient temperature?
Have you checked the setting/operation of the fluid low temperature switch?Brian - Newton Abbot, Devon, UK
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16-09-2020, 06:54 PM #3
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Re: carrier freeze protection fault
Are the pumps running at night
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21-09-2020, 02:56 PM #4
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Re: carrier freeze protection fault
the night ambients are always above 0 degrees and the problem happens all year round when the overnight temp would be above 10 degrees
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21-09-2020, 02:58 PM #5
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Re: carrier freeze protection fault
the chiller has onboard pumps so I dont think they run at night.
I removed the plug for remote running of the chiller so it did not get a call to run from anywhere.
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21-09-2020, 04:47 PM #6
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Re: carrier freeze protection fault
Chiller must have "black box" in its controller. can u check data at moment of fault?
