Standard Hydraulic Connections - Ferroli EGEA TECH 200 HT Manual

For the correct operation of the
device, it is essential to install a
0.7 MPa safety unit (7 bar, light
OBLIGATION
series supplied as standard) on
the cold water inlet. Use only
connecting pipes (not supplied),
rigid and resistant to electrolysis
both at the inlet of cold water and
at the outlet of hot water from the
device.
• Water can drip from the dis­
charge pipe of the overpres­
sure device; leave this pipe
ATTENTION
open to the atmosphere.
• The decompression device
must be operated regularly
to remove limescale depos­
its and to check that it is not
blocked.
• Connect a rubber hose to the
condensate drain, taking care
not to force too much so as
not to break the drain hose
itself.

8.7.1 Standard hydraulic connections

The following figures (fig. 58 - fig. 59 - fig. 60) illustrate 3 exam-
ples of hydraulic connection.
OUT
5
11
16 17 11
IN
1
11 10 12 10 17
fig. 58 ­ Example of water system WITHOUT thermostatic mixing valve
EN
174
4
13
14
>3°
>3°
15
9
cod. 3540000420 - Rev. 03 - 09/2023
EGEA TECH
18
OUT
5
11
16 17 11
IN
1
11 10 12 10 17
fig. 59 ­ Example of water system WITH thermostatic mixing valve
(recirculation on unit cold water inlet connection)
18
OUT
5
11
17
16 11
IN
1
11 10 12 10 17
fig. 60 ­ Example of water system WITH thermostatic mixing valve
(recirculation on unit water recirculation connection)
Legend (fig. 58 - fig. 59 - fig. 60)
1 Inlet tube
4 Recirculation water inlet
5 Hot water outlet pipe
9 Inspectable end of the exhaust pipe
10 Pressure gauge
11 Shut-off valve
12 Pressure regulator
13 Safety valve
14 Expansion vessel
15 Drain cock
16 Recirculation pump
17 Non-return valve
18 Thermostatic mixing valve
- - - when the circulation pump is running
200 HT - 260 HT
11
13
14
>3°
>3°
11
15
9
11
17
17
4
13
14
>3°
>3°
11
15
9