1 Important information
• If the installation is not used during the winter, the heating system must be drained of
water, otherwise there is a risk of frost damage to the installation. (Contact an authorized
installer, see the ”References” section.)
• The installation can be considered maintenance free but certain checks are necessary (see
“Regular checks” section).
• Before changing the control computer’s settings, first find out what these changes mean.
• Contact your installer for any service work.
1.1 Safety precautions
1.1.1 Installation and maintenance
• Only authorized installers may install, operate and carry out maintenance and repair work
on the heat pump. (See the ”References” section)
• Only authorized electricians may modify the electrical installation. (See the ”References”
section)
DANGER TO LIFE! Only authorized refrigeration technicians may work on the refriger-
ant circuit. (See the ”References” section).
1.1.2 System modifications
Only authorized installers may carry out modifications on the following components:
• The heat pump unit
• The pipes for the refrigerant, brine, water and power
• The safety valve
You must not carry out construction installations that may affect the operational safety of the
heat pump.
1.1.3 Safety valve
The following safety precautions apply to the hot water circuit’s safety valve with correspond-
ing overflow pipe:
• Never block the connection to the safety valve’s overflow pipe.
• Water expands when it is heated, this means that a small amount of water is released
from the system via the overflow pipe. The water that exits the overflow pipe can be hot!
Therefore, allow it to flow to a floor drain where there is no risk of burning yourself.
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