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A little guidiance please?
Today I was doing PM on a fairly large cooler box. It has 3 condensers and 5 evaporators. 2 of the condensers and 2 of the evaporators are 1for1. The 3rd condenser has 3 evaporators piped in parallel. Each of these 3 evaps have their own txv.
The unit in question is the one with the single condenser and 3 evap coils. Simply stated, the evap temp is to high and when you pull the box down to the low 30's, it becomes ineffective. So I boldly set forth to readjust the txv's and lower the evap temp. I quickly realized I would have to come up with a unique solution to adjust them proportionately. What I ended up doing is measuring the temp of the line on the outlet of the TXV. I used this as a guide for the adjustments. I got the temp lowered about 7° and decided to let it ride for right now. Super heat on each evap coil right around 10-12°.
Before I venture to much deeper into this, I'd like to know what I'm doing right or wrong. What is the best approach to this situation?
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