3.3 General instructions on the installation of gas refrigerant pipes
The copper pipe used for the installation must be specific for refrigeration systems: Copper pipes and sizes, see on page
79.
The diameter of the gas refrigerant pipes depends directly on the power of the outdoor unit. The pipe diameter allocated
must be respected, in line with the instructions given in Chapter Gas refrigerant pipe selection, see on page 78.
The location of the units and the gas pipe layout must be carried out in line with the instructions given in the Service Manual
corresponding to the outdoor units of the UTOPIA or SET FREE systems, especially when the outdoor unit is situated at a
different height than the indoor units.
System performance depends on the distance between the outdoor and indoor unit. This aspect must be taken into account
for the installation of the gas refrigerant pipe. The outdoor units are factory-charged with sufficient gas refrigerant for a
standard installation of certain characteristics. Where the system installation requirements involve an increase in the
distance between the outdoor and indoor unit, gas refrigerant must be added to the installation in line with the instructions
given in the Technical Catalogue and the Service Manual corresponding to the outdoor units of the UTOPIA or SET
FREE systems.
3 Piping work and
refrigerant charge
81
SMGB0063 rev. 1 - 10/2010
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