Wilo RAIN3 Series - Commissioning

en Commissioning
42 WILO SE 2020-02
22 23 20
19 21 18
18
External alarm (potential-free contact)
Overflow sensor rainwater storage tank
19
Rainwater level sensor
20
Power supply
21
Three-way valve
Pressure sensor
Overflow sensor break-tank
22
Rainwater storage tank pump
23
Main pump
X1
F1
X4
X2
X3
x1
1 L Power supply
2 PE Power supply
3 N Power supply
4 L Main pump
5 PE Main pump
6 N Main pump
7 L Cistern pump
8 PE Cistern pump
9 N Cistern pump
10 N 3-ways valve
11 L (NO) 3-ways valve
12 L (NC) 3-ways valve
x2
1 11 COM External alarm (dry
contact)
2 14 NO External alarm (dry
contact)
3 12 NC External alarm (dry
contact)
x3
1 S: PS Pressure sensor
2 +24V Pressure sensor
3 S: LS Level sensor
4 +24V Level sensor
5 S: BT Overflow sensor
buffer tank
6 +24V Overflow sensor
buffer tank
7 +24V Overflow sensor
cistern
8 BS:C Overflow sensor
cistern
8 Commissioning
CAUTION
Hazards due to malfunctions!
Before the complete commissioning of the installation, the pump must be filled and
vented, otherwise the mechanical seals could be damaged (dry running).