Si33-003.book Page 94 Monday, June 25, 2001 9:06 AM
Appendix
7.2
Allowable Piping Length
Points of piping desigh
1. b + c = 100m
2. Level difference between outdoor units (Main and Sub units) a ≤ 5 m
3. Piping distance between first branch and the farthest indoor unit ≤ 40 m
4. Level difference between indoor units ≤ 15 m
5. Level difference between indoor and outdoor unit ≤ 50 m
6. Refnet joint and header are not downstream for first installed Refnet header.
94
(Level difference is lower than 40 m when outdoor unit is installed below indoor unit.)
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SiE33-003
General Information