6 | Unit installation
Installer reference guide
31
CVXM20A + FVXM25~50A
Split system air conditioners
4P625991-1C – 2021.09
a Bottom frame
b Slit portion for side piping on the front grille (same on the other side)
c Slit portion for side piping on the bottom frame (same of the other side)
d Slit portion for the bottom piping
1 Cut off the slit portion using nippers.
2 Remove an burrs along the cut section using a half round needle file.
6.3.4 To provide drainage
Make sure condensation water can be evacuated properly. This involves:
▪ General guidelines
▪ Connecting the drain piping to the indoor unit
▪ Checking for water leaks
General guidelines
▪ Pipe length. Keep drain piping as short as possible.
▪ Pipe size. Use rigid polyvinyl chloride pipe with 20 mm nominal diameter and
26mm outer diameter.
NOTICE
▪ Install the drain hose with a downward slope.
▪ Traps are NOT permitted.
▪ Do NOT put the end of the hose in water.
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