Functional Diagram - Grundfos Hydro 50-250/263 YJS ASD-U3-B Installation And Operating Instructions Manual

7. Functional diagram

9
PSS PSS
PSL
B
A
Functional diagram
Pos. Connection/description
Independent inlet connection
1
for the duty electric pump
Independent inlet connection
2
for the standby diesel pump
3 Inlet connection for the jockey pump
Recirculation circuit connection
4
for the duty or standby electric pump
Recirculation circuit connection for the duty or
5
standby diesel pump with direct air cooling
Priming circuit connection for the duty or
6
standby electric pump
Priming circuit connection for the duty or
7
standby diesel pump
8 Priming circuit connection for the jockey pump
9 System outlet connection
10 Connection for technical room sprinkler
11 Test circuit outlet
12 Diesel tank vent
Cooling circuit outlet with water/water heat
13
exchanger, if present
14 Diesel engine exhaust gas outlet
A Scope of supply limits
B Duty electric pump
C Jockey pump
D Standby diesel pump
E Diaphragm pressure tank
Symbol Description
Check valve
Ball valve
E
10
6
8
4
1
3
C
9
PSS
7
5
PSL
2
11
Symbol Description
Butterfly valve
Concentric divergent
Eccentric divergent
[=] Grooved coupling
Flowmeter
PSS
Pressure switch
Pressure gauge
Diaphragm pressure tank
Control panel
Drain connection
Power and signal connections
Main and auxiliary flow pipes
Related information
5.3 Connecting the recirculation circuits
14 12
PSS
13
D
17