Cooling Connections; Pipe Insulation; Pipe Clamping - Ferroli GOLD 3.2 Series Use And Maintenance Manual

COOLING CONNECTIONS

Comply with the following indications when connecting the cooling pipes:
• Match the ends of the previously flared pipe (part 1) with those of the
connections on the indoor units or on the cocks of the outdoor units (part 2) .
• Tighten the union by hand and then torque it with the aid of an adequate
wrench (it is advisable to use a fox wedge to prevent tensions from being
created on the pipes) .

PIPE INSULATION

To ensure system efficiency and its correct operation it is necessary to use pre-insulated cooling connection lines
easily available on the market . Pay also attention to the connection points according to what described .
Use thermal insulating tape to tie the hoses, from the area connecting
the outdoor unit cocks to the upper end of the hose in correspondence
of the wall entry point . (Fig . 2)

PIPE CLAMPING

Make sure that the connecting zone is free from dust and dirt .
• Make sure that the flare and connection are perfectly aligned .
• Tighten the union first by hand and then with an adequate torque wrench .
Leaks could occur if the parts are insufficiently tightened, while the flare could be damaged if it is tightened too
strongly .
The table below lists the torques recommended for the various pipe diameters
Nominal Diameter (")
1/4
3/8
1/2
5/8
14
INSTALLATION
External Diameter (mm) ∅
6 .35
9 .52
12 .70
15 .88
Fig . 1
Fig . 2
Tightening torque
Nxm
15-20
30-40
45-55
60-65