Installation introduction
Tools for the connection of refrigerant lines
a) Group manometer suitable for use with R134a, with charge and vacuum tubes;
b) Vacuum pump;
c) Torque wrenches for nominal diameter of 1/4 “and 3/8” sizes on both sides to
respond to the measures of the pipe unions;
d) Flaring clamp ø nominal 1/4 “and 3/8”, equipped with a terminal receiving
opening so that the projection of the copper tube can be adjusted from 0 to 0.5 mm
in the working folder ;
e) Pipe cutter;
f) Pipe reamer;
g) Leak Detector for R134a, a leak detector is used exclusively for HFC refrigerants.
It must have a high detection sensitivity.
14
Preparing of the refrigerating pipes
WARNING! Before carrying out any installation check the following:
a) Use only copper tubes for air conditioners type (copper tubing for the refrigeration
and the conditioning) or copper pipes with proper insulation (at least 6 mm thick),
suitable for use with R134a;
b) Never use piping with a thickness less than 0.8 mm;
c) Provide a path of the pipes as short and simple as possible (maximum length 20 m
with 10 m of fall). Do not provide a path that may obstruct the access to the cap and
the removal of flange.
d) Protect the pipes and cables to avoid damage;
WARNING! The refrigerant lines, and fittings for connection must be insulated to
avoid dangerous burns, loss of performance and product malfunction. Ensure the
insulating sheath of the tubes through fastening clamps to prevent it from moving.
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