Cooling Connections; Pipe Insulation; Pipe Clamping - Ferroli DIAMANT M Série Manuel D'utilisation Et D'entretien

2.8 COOLING CONNECTIONS

Comply with the following indications when connecting the cooling
pipes:
• Match the ends of the previously flared pipe (part.1 "fig. 19 -")
with those of the connections on the indoor units or on the cocks
of the outdoor units (part.2 "fig. 19 -").
• 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).
For the connection with model 18 indoor units it is necessary to use pipe diameter adaptation kits ("fig. 20 -").
These kits (part A - "fig. 21 -") are supplied with outdoor units and must be connected to the cock on the outdoor unit, and then to the
1/2" pipe required for the connection with the indoor unit.

2.9 PIPE INSULATION

To ensure system efficiency and its correct operation it is neces-
sary to use pre-insulated cooling connection lines easily available
on the market.Pay also attention to the connection points accor-
ding to what described.
Use thermal insulating tape to tie the hoses, from the area con-
necting the outdoor unit cocks to the upper end of the hose in
correspondence of the wall entry point.("fig. 22 -")

2.10 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
Pipe nominal size (")
140 - Rev. 01 - 10/2020 01 - 10/2020
fig. 20 -
External diameter (mm) Ø
1/4
3/8
1/2
5/8
6.35
9.52
12.70
15.88
35
EN
fig. 19 -
fig. 21 -
fig. 22 -
Tightening torque
(N x m)
15-20
30-40
45-55
60-65