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30HXA CONDENSERLESS LIQUID CHILLER
09DPM050 CONDENSER
09DPM050 CONDENSER
Fig. 12 — Typical 30HXA Condenserless Liquid Chiller Refrigerant Piping to 09DP Remote
Condensers (30HXA076 and 09DPM050 Units Shown)
NOTES:
1. Chiller and condenser must be installed
levelly
to maintain proper
compressor oil return.
2. Wiring and piping shown are general points-of-connection guides
only and are not intended for a specific installation. Wiring and
piping shown are for a quick overview of system and are not in
accordance with recognized standards.
3. All wiring must comply with applicable local and national codes.
4. All piping must follow standard piping techniques. Refer to Carrier
System Design Manual part 3, Carrier E20-II software Refrigerant
Piping program, or appropriate ASHRAE (American Society of
Heating, Refrigerating, and Air Conditioning Engineers) hand-
book for details on proper piping sizes and design.
5. See Tables 1-6 for approximate refrigerant charge.
6. Double discharge riser may be required; check unit minimum
capacity.
7. Trap should be installed on hot gas lines to prevent condenser oil
and refrigerant vapor migration from accumulating in the com-
pressor during off cycle.
8. Pitch all horizontal lines downward in the direction of refrigerant
flow.
9. For pressure relief requirements, see latest revision of ASHRAE
Standard 15, Safety Code for Mechanical Refrigeration.
10. All 09DP units have factory-installed contactors.
a09-590