9NOTES:1. Chiller must be installed level to maintain proper compressor oilreturn.2. Wiring and piping shown are general points-of-connection guidesonly and are not intended for a specific installation. Wiring and pip-ing shown are for a quick overview of system and are not in accor-dance with recognized standards. Units should be installed usingcertified drawings.3. All wiring must comply with applicable local and national codes.4. All piping must follow standard piping techniques. Refer to CarrierSystem Design Manual part 3, Carrier E20-II software RefrigerantPiping program, or appropriate ASHRAE (American Society ofHeating, Refrigerating, and Air Conditioning Engineers) handbookfor details on proper piping sizes and design.5. See Tables 1A and 1B for minimum system fluid volume. This sys-tem may require the addition of a holding tank to ensure adequatevolume.6. Hot gas lines should rise above refrigerant level in condenser cir-cuit. Double riser may be required; check unit minimum capacity.7. Trap should be installed on hot gas lines to prevent condenser oiland refrigerant vapor migration from accumulating in compressorduring off cycle.8. Pitch all horizontal lines downward in the direction of refrigerantflow.9. Provide support to liquid and gas lines near the connections to thecondenser coil.10. For pressure relief requirements, see latest revision of ASHRAEStandard 15, Safety Code for Mechanical Refrigeration.11. A strainer with a minimum of 40 mesh must be installed within 10 ft(3 m) of the evaporator fluid inlet to prevent debris from clogging ordamaging the heat exchanger. This strainer is required and is avail-able as an accessory.12. Piping, wiring, switches, vents, strainers, drains, and vibration iso-lation are all field-supplied.Fig. 9 — Typical Piping with 30MPA Unit and 09DP Remote Air-Cooled Condenser09DPAIR-COOLEDCONDENSERa30-4998