Ferroli EGEA TECH 200 HT Manual page 176

8.7.2.1 Example of water system WITH thermostatic mixing valve (recirculation on unit cold water inlet connection)ità)
5
11
16 17 11
1
11 10 12 10 17
fig. 62 ­ Example of water system WITH thermostatic mixing valve
(recirculation on unit cold water inlet connection)
Legenda
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
Note:
1) The recirculation pump (part.16) must be connected to terminal CN26 of the master motherboard (ref. "fig. 69 - Wiring diagram of the equipment" on page 180).
2) Fit a normally open solenoid valve (part. 19) for each unit in the cascade. The valve must be connected to terminal CN14-1 (ref. "fig. 69 - Wiring diagram of the
equipment" on page 1804) of the mother board of each unit.
EN
176
18
11
11
19
13
14
15
21
14 Expansion vessel
15 Drain cock
16 Recirculation pump
17 Non-return valve
18 Thermostatic mixing valve
19 Solenoid valve for cascade water inlet manage-
ment (normally open 230Vac-50Hz)
20 Exhaust manifold
cod. 3540000420 - Rev. 03 - 09/2023
EGEA TECH
11
11
19
13
14
15
21
20
21
22
200 HT - 260 HT
11
11
19
13
14
15
21
Siphon
Unloading on the ground
Cascade management serial connectionsa
Electrical connections
22