EN
16
2 .6
Cooler connections
The installer must be in compliance with as established by
Regulation 303/2008/EC which defines, in accordance with
the Directive 842/2006/EC, the requirements of companies
and personnel as regards stationary refrigeration, air condi-
tioning and heat pump equipment containing certain fluori-
nated greenhouse gases.
IMPORTANT:
Do not make the connections using normal hydraulic pipes
that could contain residues of flashing, dirt or water and that
could damage the parts inside the unit and interfere with
proper operation of the devices.
Use only special copper pipes for cooling, that are supplied
clean and sealed at the ends.
After cutting the proper lengths, seal the ends immediately
on the roll and cut piece.
Pre-insulated copper cooling system pipes can be used.
Only use pipes with diameter suitable for the dimensions de-
scribed in the technical data sheets.
Open the inspection panel of the outdoor unit to access to the
connection.
Plan the route of the pipeline so as to reduce the length and
number of bends as much as possible for best performance
of the system.
The maximum length of the connection lines to the inter-
nal unit must be between 2 and 50 m in each direction (for
lengths greater than 30 m it will be necessary to top up the
R410A load with 40 g for each metre). Furthermore, the max-
imum difference in height between the internal and external
unit must not exceed the figures indicated in the “Connec-
tion” table.
Fasten a cable raceway to the wall (possibly with internal par-
titioning) of suitable size for the pipes and electrical wires to
pass through.
Cut the sections of pipe leaving an extra 3-4 cm on the ends.
IMPORTANT: use a wheel pipe cutter only to cut the pipes clamp-
ing it in short lengths so as not to crush the pipe
NEVER USE A NORMAL HANDSAW, scraps could fall inside the
pipe and enter the circuitry of the system, damaging the parts
severely.
Remove possible burrs with the special tool.
IMPORTANT: immediately after cutting and deburring the
pipes, seal the ends with insulating tape.
A
Control wire output
B
Inspection panel
C
Covering A
D
Power wire output
E
Pipe outlet
F
3/8 “ liquid line
G
5/8 “ liquid line
G
F
A
B
C
D
E
If pre-insulated pipes are not used, insert the pipes in the insula-
tion which must have the following features:
– material: polyurethane foam with closed cells
– max. transmission coefficient: 0.45 W/(Km2) or 0.39 kcal/(hx-
Cxm2)
– minimum thickness: 6 mm (for liquid pipes)
– minimum thickness: 9 mm (for gas pipes)
Do not place both pipes in the same sheath as this would
jeopardize the proper operation of the system.
Bind any joints in the sheath securely with insulating tape.
Before flaring the pipe ends, insert the fastening nut.
Summary of Contents for PDC FLOOR 12T
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