2. Guideline for each installation process
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Heat pump 50Hz/R410A
Part 3 Design and installation
2.4.2 Forming the piping
1) Form the piping by wrapping the connecting portion of the indoor unit with insulation material and secure
it with two kinds of vinyl tape.
• If you want to connect an additional drain hose, the end of the drain outlet should be routed above the ground. Secure the
drain hose appropriately.
2) In cases where the outdoor unit is installed below the indoor unit perform the following.
①
Tape the piping, drain hose and transmission cable from down to up.
②
Secure the tapped piping along the exterior wall using saddle or equivalent.
The cable is required to prevent rain water
from entering into electrical parts of outdoor unit.
