3 Piping work and
refrigerant charge
95
3
SMGB0077 rev.0 - 01/2013
3.3 General instructions on the installation of refrigerant pipes
The copper pipe used for the installation must be speciîš¿c for refrigeration systems as is indicated in section Copper pipes
and sizes.
The diameter of the 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 Refrigerant pipe selection.
The location of the units and the 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 refrigerant pipe. The outdoor units are factory-charged with sufîš¿cient 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, 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.
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