3
DANGER
These instructions are exclusively intended for qualified contractors and authorised installers
• Work on the refrigerant circuit with flammable refrigerant in safety group A2L may only be carried out by
authorised heating contractors. These heating contractors must be trained in accordance with EN 378 Part 4
or IEC 60335-2-40, Section HH. The certificate of competence from an industry accredited body.
• Brazing/soldering work on the refrigerant circuit may only be carried out by contractors certified in accordance
with ISO 13585 and AD 2000, Datasheet HP 100R. And only by contractors qualified and certified for the
processes to be carried out. The work must fall within the range of applications purchased and be carried
out in accordance with the prescribed procedures. Soldering/brazing work on accumulator connections
requires certification of personnel and processes by a notified body according to the Pressure Equipment
Directive (2014/68/EU).
• Work on electrical equipment may only be carried out by a qualified electrician.
• Before initial commissioning, all safety relevant points must be checked by the particular certified heating
contractors. The system must be commissioned by the system installer or a qualified person authorised by
the installer.
