Olimpia splendid SHEPRA TOWER S2 Instructions Pour L'installation, L'emploi Et L'entretien page 68

The hydraulic connections must be complete by installing (fig.5):
• air breather valves aria in the highest points of the pipes;
• please refer to "fig.5" for the position of the hydraulic and refrigerant connections. Heights are indicative, it
is recommended to use flexible elastic junctions between the system pipes and the hydraulic connections
of the unit;
• stop valves (on the drinkable water inlet, on the DHW outlet, on the system water return pipe, necessary
to ease maintenance operations)
• sieve water filter with 0.4 mm meshes on the drinkable water inlet and on the return pipe from the system
to intercept possible particles in the hydraulic system. Install in an easily accessible position during
cleaning operations
• thermally insulate all the components and the hydraulic pipes
• In case of installation with hydraulic connections upwards ("A"), leftwards ("C") or rightwards ("B"), it is
necessary to remove from the cover the precut metal sheet part on the pipes output side.
Use a hacksaw to remove the precut metal sheet.
• In case of installation with hydraulic connections leftwards ("C"), rightwards ("B") or towards the rear part
of the machine, use 90° sharp bends (two 1" and two 3/4")
• Install a non-return valve on the drinkable water inlet (see paragraph "Hydraulic circuit" - rif.18)
The minimum nominal diameter of the hydraulic connection pipes must be
1".
To allow for maintenance or repair operations, it is essential that each hy-
draulic connection is equipped with the corresponding manual shut-off
valves.
• Table 1
Necessary characteristics of the hydraulic system.
Water minimum flow rate
Nominal water
flow rate*
System water
content
Max**
Operating
pressure
System
difference in level
* for floor systems
** with maximum temperature of system water of 35°C
The charts in fig.18-18a-18b show the prevalence of the circulator for each speed of the hydraulic circulator
and the load losses inside the machine from which the residual prevalence at the connections of the machine
must be obtained, expendable on the system.
The circulation of the minimum content of the conditioning system be ensured even if the valves
in the system are closed.
EN - 14
External SHERPA
unit S2 12
Internal
unit
l/s 0,14
l/s 0,57
Min l 45
l 400
Max kPa 300
Max m 20
SHERPA SHERPA SHERPA
S2 14 S2 16 S2 12T
SHERPA TOWER S2 BIG
0,14 0,14
0,67 0,77
51 58
400 400
300 300
20 20
SHERPA SHERPA
S2 14T S2 16T
0,14 0,14 0,14
0,57 0,67 0,77
45 51 58
400 400 400
300 300 300
20 20 20