Intergas Xtend-HB-CUSP05 - Refrigerant Connections; Points of Attention for Refrigerant Lines

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8.6 Refrigerant connections
IMPORTANT
► Make sure that the refrigerant lines have
minimal hydraulic resistance.
► The distances of the liquid and gas
lines running between the outdoor unit
and indoor unit must be kept as short
as possible (between 3 metres and 25
metres), the external section of the
pipework must be kept to a minimum.
► The inside of the refrigerant lines must
not be contaminated. Ensure that the
lines have been cleaned before the final
connection.
► The lines must be protected from physical
damage using a proprietary pipe cover.
► Use rubber lined support clamps or
spacers to keep the lines from coming
into contact with any surfaces.
► All of the lines must be well insulated
with Class 0 rubber or simular quality
insulation (pre-insulated coils available).
► The lines must be accessible for
maintenance work.
► If work using heat sources must be
performed, then suitable a hot works
permit must be completed and issued
prior to commencing. A suitable fire-
extinguishing must be on site during
these works.
► No ignition sources are permitted for use
near exposed refrigerant gas lines. This
poses a risk of fire or explosion.
► Use the correct tools for cooling
connections: connections made
incorrectly will have to be remade.
► Check the cooling connections for leaks
with a leak detector whilst pressure
testing with Oxygen free Nitrogen.
Conduct a second leak test aer the
system has been filled with refrigerant
using a suitable leak detection fluid or
calibrated electronic snier (R32).
8.6.1 Points of attention for refrigerant lines
IMPORTANT
► Refrigerant work can only be performed
by a registered F-gas or REFCOM installer.
► All F-gas actions must be performed
according to the F-gases regulation (EU)
517/2014.
► The outdoor unit is charged with 0.85
kg of R32 refrigerant before leaving the
production facility.