287287
EN
Warnings Installation
6. Refrigerant connection
All refrigerant lines are to be exclusively connected by qualied professionals,
certied in accordance with Ordinance 2007/737 and its implementing orders.
We oer the respective service. In order to request suchlike commissioning
services, please make use of the form provided on the inside of the back cover
at the end of this manual.
Before connecting the refrigerant lines, ll the water heater with water to verify the instal-
lation does not leak (refer to Section “Filling the water heater”).
PLEASE NOTE:
All refrigerant lines are to be thermally insulated in order to prevent burning and ensure
the appliance provides optimal performance.
The outside unit is precharged with R32 for a refrigerant line up to 15 m. Greater
lengths require an additional charge. The maximum connection length is 20 m.
• The line must be as short and as straight as possible, as this determines the perfor-
mance and service life of the system. All lines must be free from bends
• The two tubes that make up the refrigerant line must be separately insulated.
• Only use R32 refrigerant. Any mixing with other gases or air is prohibited
• The installation must be correctly vacuum sealed to ensure correct operation and
guarantee the reliability of the system over time.
• Before starting the outside unit, make sure that the 2- and 3-way valves are open.
Operating the compressor with closed units would damage it and is thus not covered
by our guarantee terms.
• Remove the cover of the refrigerant
lines from the outside unit.
Ensure to keep the respective screw!