88-A4HP4001-1B-EN
5
50’
Max
Vertical
Change
Standard
Line Set
150’ Max
TOTAL Line Length
50’
Max
Vertical
Change
2.3 Refrigerant Piping Limits
1. The maximum TOTAL length of refrigerant
lines from outdoor to indoor unit should
NOT exceed 150 feet (including lift).
2. The maximum vertical change should not
exceed 50 feet.
3. Service valve connection diameters are
shown in Table 5.1.
Note:
For other line lengths, Refer to Refriger-
ant Piping Application Guide, SS-APG006-EN
or Refrigerant Piping Software Program, 32-
3312-03 (or latest revision).
