©Termo-tehnika, d.o.o.
ID.: 17-16-24-3006-03 | 12.2016
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4.2.6 Wall penetration for the refrigerant and electro-communication connection
When installing a refrigerant and electro-communication connection between the internal and external
device, please note:
The passage through the wall must be drilled with a crown drill with the diameter of 70 mm for
laying pipe connections.
The hole for the pipe connection must be slightly sloped in the direction towards the external
device to prevent water penetrating into the building. See the diagram below.
1
Internal device
3
External device
2
Wall
4.3 Refrigerant pipe connection of the exterior and interior device
Connect the exterior and interior device with refrigerant pipes.
NOTE
Use insulated pipes for the installation of the connection between external and internal
device.
CAUTION
The refrigerant pipes filled with nitrogen are always laid closely sealed to prevent impurities,
air, moisture and contaminants penetrating the interior.
4.3.1 Determining the length of the connection pipes
When determining the length of connection pipes, follow the instructions for the maximal
allowed pipe length and the height difference between the devices.
CAUTION
The refrigerant pipes must not be installed alongside the heating in the screed or alongside
any kind of source of heat or cold.
The data on permitted lengths and height differences between devices
1
Internal device
2
External device
