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Thread: cellar cooler not cooling
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17-07-2008, 08:26 PM #1
cellar cooler not cooling
Hi have been working on a IMI celler cooler today customer had said it was not cooling. On arrival found room temp. to be 10-12c think this is about right but found coil tempture on evaporator at bottom to be 0c and the top at 12c ??? System is a 407c and took suction pressures at 55psig. Condensor fan seems to be running at full speed todays outdoor temp 20c. Is the system short of gas or is there a problem with the expansion device may be partial blockgage any ideas? thanx
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17-07-2008, 08:44 PM #2
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17-07-2008, 09:08 PM #3
Re: cellar cooler not cooling
sorry Frank not been to school for 10 years+ been split bashing ever since forgoten more then i can remeber!
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19-07-2008, 10:05 PM #4
Re: cellar cooler not cooling
alot of the IMI units have the exp device just after the liquid service valve at the outdoor unit they have a little orifice inside. Pump the unit down and take it apart, its on flare nuts sometimes they get crap inside them.
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23-07-2008, 10:06 PM #5
Re: cellar cooler not cooling
You say the temp in the cellar is 10-12c?That the perfect tempreture.
What makes you think its short of gas?have you checked the sightglass,is the evap icing up?
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30-07-2008, 05:32 PM #6
Re: cellar cooler not cooling
As Frank says, you need to take the temperature of the suction line and work out the superheat. This will tell you if the unit is short of refrigerant or if there is a blockage.
The difference between genius and stupidity is that genius has its limits.
Marc
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30-07-2008, 06:28 PM #7
Re: cellar cooler not cooling
It's better to keep your mouth shut and give the impression that you're stupid than to open it and remove all doubt.
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