I have 22 Evaporators with a Danfoss ICM on the suction outlet and regulate off of room temp the evaporators are overfed from a CPR my question is. do the expansion valves need that same amount of precision to adjust the feed rate as standard Suction Pressure Control. When the evaporators were commissioned the expansion valves were set and then adjusted to maintain room temp as far as i am told but there isn't any record for the turns open should i make an effort to get all these evaporators adjusted properly and write it down or should i go with the old saying if it ain't broke don't fix it also they are almost impossible to get to during full load. every thing in that area is built without Maintenance in mind just how many machines and conveyors can we fit in this room to give us the most use of space