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21-07-2010, 04:27 PM #1
hussman door icecream freezer issues
I'm working on a 20 door run of hussman glass door freezers that will not get cold enough. Suction line pressure seems high to me. I'm going to give u guys some stats and see in you can help.
Low side 25 (-10)
High side 280(115)
Temp in cooler 3.6
Suction line temp at txv bulb 6.6
Liquid line temp 106 in compressor room.
Compressor room temp. 100-106
This is a 404a system with a 7.6 Copeland compressor.
Any thoughts would be appreciated.
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23-07-2010, 01:15 AM #2
Re: hussman door icecream freezer issues
Hi, hwebb54. You are on the edge, but you should be able to improve things. Your superheat is too high @ 16.6 deg F or C. Set your superheat at 5 deg F. This will tend to increase your suction pressure, but overnight, you should see an improvement in temperatures. Also, make sure you only have a single defrost per day.
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23-07-2010, 01:53 AM #3
Re: hussman door icecream freezer issues
Thank you for the info. I'll get back to you with the results.
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