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Thread: Hoshy oh so slow
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05-16-2004, 12:36 PM #14
As far as the 60 minute batch thing. It's a saftey really. If it goes more than sixty minutes before tripping to go to harvest off the float, the board automaticaly makes it go to harvest. It won't come out of harvest till the suction side temp sensor is above 54 degrees, and float senses a water resevoir full. Meaning coil temp is 54 degrees, meaning ice machine although it can, don't ice easily. Many guys misdiagnose these ice ups BTW. If it's icing up, yeagh no doubt you got a problem but ask yourself how it didn't catch itself. Those sensors can go screwy and still funtion it out of a defrost but prematurely.
And also. Most hoshis run at a 43 - 46 minute batch, with only 3 - 6 minutes to harvest included in that time. So giving you another say 15 minutes to hit sixty minutes, and with the temp saftey out of defrost, it takes a lot to ice up a hoshi. And also, since your water is brought in by batch, there is only so much that can freeze on coil. if you have ice ups on hoshi's, 9 times out of ten your looking at a defrost issue and not freeze cycle issue. Scotman. Just the opposite.
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05-17-2004, 04:08 PM #15
S-Tek
If the charge is correct, subcooling is correct, and the TXV's are controlling the superheat properly, then you either have hot water over the evaporator (I Am Just Kidding You with that one <g>) or: a defective compressor - not pumping.
If there is a suction service valve to close you can check to see if the compressor will pump down into a vacuum. Or if not, you can shut the comp. off to see how fast the pressures equalize.
In short - a pump that won't pump is bad. <g>
PHM
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05-17-2004, 11:46 PM #16
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Hot gas valve...........
Leaking by? You should be able to feel a temp. difference across the valve.
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05-18-2004, 08:45 AM #17
he already checked the HGV -
and noted no temperature difference across it.
PHM
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05-18-2004, 10:49 AM #18
If it was leaking a little the temp would be the same. Anyway, like I said way up there somewhere, it is one of the two, do a pull down test on the comp.
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