60
6-6. Instructions for re-use piping of R22 or R407C
Instruction of works:
The existing R22 and R407C piping can be reused
for our Air to Water Heat Pump R32 products
installations.
In th
Wh
eries.
6-6-1. Basic conditions need-
ed to reuse the existing
pipe
6-6-2. Restricted items to use
the existing pipes
• T
.
* Pipe diameter and thickness (mm)
Reference outside
diameter (mm)
Wall thickness
(mm)
Material
6.4 0.8
12.7 0.8
15.9 1.0
• In
sure t
WARNING
NOTE
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