External Unit; Internal Unit; Gas Connections - Ariston NIMBUS HYBRID S NET R32 Quick Start Manual

CHECKLIST (2/3)

EXTERNAL UNIT

Did I position the unit outside?
Did I mount the vibration damper?
Have you positioned the unit on a strong, level base, with easy access for maintenance?
Have you installed a shield to protect the unit against draughts?
Are you sure the flow of air is unobstructed?
Are you sure the supporting structure can bear the weight of the external unit?
Does it snow heavily in the installation area? If it does, have you installed the external unit at least 200 mm above the
usual level reached by the snow?
Is the condensate drain present?

INTERNAL UNIT

Have you installed the unit in an enclosed space, with easy access for maintenance?
Have you secured the unit to the wall or ground?
Did I install the condensate tray and connect the drain?

GAS CONNECTIONS

This procedure must be done by a qualified technician, in compliance with the requirements of the F-Gas regula-
tions.
Have you avoided too sharp bends and the risk of oil being trapped in the tubes running between the internal and
external units?
Have you observed the minimum and maximum tube length specifications? And the height difference?
Have you done the flaring with suitable equipment?
Have you purged the air from the circuit with a vacuum pump and held the vacuum for at least 5 minutes?
Have you re-opened the valves to charge the circuit?
Have you charged an additional amount of refrigerant gas if the tubes running between the internal and external
units are longer than 20 m?
If the total charge is > 1.84 kg, did I check whether the installation room has a minimum opening for natural ventila-
tion as shown in the installation manual?
Have you fitted the caps on the valves?
If you intend to complete the installation at a later date, have you closed the tubes?
Have you re-opened the valves to charge the circuit?
4 / EN
a
The external and internal units must be
installed by a qualified technician. For detailed
instructions, refer to the installation manual.
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