hi there just got a question for an assignment i am doing i have to draw a schematic diagram of a three screw comp system with a high stage comp low stage comp and a booster comp. there will be four rooms with flooded evaporators fed from the accumulator two rooms at -25 two at -15. With another room DX running at 0 degrees. My question is what should my three comps be sucking off.
Should i have my booster sucking off the economiser and discharging into the suction of the high stage and also have the high stage comp sucking off the accumulator and the low stage comp sucking off the evaps? or should the evap suctions be piped back into the accumulator and what should be sucking off the DX room at 0 degrees. Im sorry for the brief info i no it might be hard to understand but would appreciate any help or links to helpfull sights
Also is it possible to find a link to the official ISO symbols for refrigeration schematic drawing cant seem to find anything