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5.12
Refrigeration connections
5.12.1
Preparing the refrigerant connections
5.12.2
Flaring work
7800852 - v02 - 10052022
Danger
Only a qualified professional may carry out the installation, in
compliance with current legislation and standards.
Compliance with national regulations shall be observed.
To allow exchanges between the indoor unit and the outdoor unit, fit 2
refrigerant connections: Flow and return.
Pursuant to European Regulation 517/2014, the equipment must be
installed by a certified operator whenever the refrigerant load is in excess
of 5 tonnes of CO
equivalent or when a refrigerant connection is
2
necessary (the case with split systems, even when fitted with a quick
coupling device).
Install the refrigerant connection pipes between the indoor unit and the
outdoor unit.
Important
To avoid noise from pipes vibrating against each other, observe
the following:
Leave a space between the pipes during connection.
Provide enough slack in the pipes.
Use sufficient insulated pipe support clamps to prevent direct
contact with light surfaces like wooden panels.
Insulate the pipes with noise-damping rubber or other insulation.
Protect the pipes from physical damage during normal operation, service
or maintenance.
Inside the building:
Install the refrigerant pipe at a minimum of 2 metres from the ground
(when possible).
Fit a mechanical protection onto the pipe sections below 2 metres.
Respect the minimum curve radius of 100 to 150 mm.
Adhere to the minimum and maximum distances between the indoor unit
and the outdoor unit.
Do not add additional connecting joints between the indoor and outdoor
units.
Cut the pipes with a pipe cutter and deburr.
Angle the opening in the pipe downwards to ensure no particles can get
inside, while preventing oil traps.
If the pipes are not connected immediately, plug them to prevent
moisture from entering.
Do not reuse beaded joints, always fabricate a new joint.
Carry out flaring work using a flaring tool and compare the flared work with
the provided figure. If the flare is noted to be defective, cut off the flared
section and do flaring work again.
en
5 Installation
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