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Thread: cheese room problem.
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23-12-2005, 05:12 PM #1
cheese room problem.
Hi guys, I'm after a bit of advice please.., I have a customer with a 10ft sq 7ft tall coldroom at +3C, the unit cools and defrosts perfectly.
The problem I have is that the main side cover keeps getting forced off by icebuild up on tev and capillary tubes. I went to see the unit today to melt the ice and refit the cover but I was just wondering for possible causes/fixes...?
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23-12-2005, 09:14 PM #2
Re: cheese room problem.
I'm guessing that this coldroom has forced defrost (electric/hot gas)? You say that the evap. defrosts O.K. (which it would with forced defrost) but for the TEV to ice up in a coldroom that much is abnormal. To me it would indicate that the unit is running longer than normal due to excessive door opening/being left open for excessive periods or the system is running below par i.e. it's achieving setpoint but is running for abnormally long periods to achieve it.
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23-12-2005, 09:28 PM #3
Re: cheese room problem.
I think the evaporator is right near the door , near a hot kitchen, and with frequent door openings....
Any opinions, statements and facts expressed in this message do not constitute legal advice in any shape or form and is given for a general outlook in nature. You are advised to seek appropriate and specific professional assistance from a regulated and authorised advisor for definitive advice.
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23-12-2005, 10:43 PM #4
Re: cheese room problem.
The valve is staying open for too long, incorrect valve sizing, mis match of evap for application..........
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24-12-2005, 08:56 PM #5
Re: cheese room problem.
Sounds to me like gas charge shortage or tev superheat setting incorrect
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29-12-2005, 05:28 PM #6
Re: cheese room problem.
So which is the correct answer for this problem?
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29-12-2005, 07:45 PM #7
Re: cheese room problem.
Originally Posted by Cofreth
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29-12-2005, 09:12 PM #8
Re: cheese room problem.
Andy W has got it about spot on.
In fact Ive learnt from his very logical approach
Thank YouAny opinions, statements and facts expressed in this message do not constitute legal advice in any shape or form and is given for a general outlook in nature. You are advised to seek appropriate and specific professional assistance from a regulated and authorised advisor for definitive advice.
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29-12-2005, 10:38 PM #9
Re: cheese room problem.
Originally Posted by Aiyub
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04-01-2006, 11:40 AM #10
Re: cheese room problem.
Thank you very much for the advice/pointers guys, I really do appreciate it.
I shall be going back to see the customer early next week to try and pinpoint this fault. When I was there the other week I did not really have a chance to make a proper diagnosis as the secretary that was there on here own wanted to get home and literally booted me out..
I shall update the thread with my findings when I am allowed a bit more time to play.
Once again, many thanks all and hope the new year treats you all well.
regards...
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04-01-2006, 11:57 PM #11
Re: cheese room problem.
yes it may be shortages of gas and also in my experiences if the ambient temperature is very low ice will buid up in tev.
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