| Chilled water supply | Roof drainage |
| Chilled water return | Roof drain overflow |
| Heating hot water supply | Sanitary sewer above & below grade |
| Heating hot water return | Sanitary sewer vent |
| Low/medium/high pressure steam | Acid vent |
| Low/medium/high pressure condensate | Acid waste |
| Refrigerant liquid/suction | Domestic hot & cold water |
| Pumped condensate | Natural gas |
| Boiler blow down | Deionized/RO water supply |
| Boiler feed water | Deionized/RO water return |
| Fuel oil return | Compressed air |
| Fuel oil supply | Vacuum |
| Fuel oil vent | Nitrogen |
| Glycol heating water supply | Instrument air |
| Glycol heating water return | Nitrous oxide |
| Condenser water supply | Medical oxygen |
| Condenser water return | Medical vacuum |
| Make up water | Soft domestic water |
| Heat recovery supply | Medical air |