Electrical Connection; Commissioning - Wilo RAIN1 Notice De Montage Et De Mise En Service

en
7.5

Electrical connection

X6
X5
X4
8

Commissioning

28
Commissioning
DANGER
Risk of electrocution!
Risk of electrocution in case of an incorrect electrical connection. The electrical con-
nection must be exclusively performed by an electrician qualified by the local energy
supplier and in compliance with the current local regulations.
The system must be supplied by a circuit composed of a residual differential current
device (RCD), with an assigned differential current of maximum 30 mA.
ƒ
The system is ready for connection.
ƒ
The current type and the supply network voltage should comply with the specifica-
tions on the rating plate. It is necessary to connect RAIN1 to a power supply with an
impedance of 0.3 ohm at maximum.
ƒ
If the cable is damaged, it must be replaced by qualified personnel.
CAUTION
The device socket being the main switch of the system must be reachable at any
time for safety.
Remove the controller cover (4 screws) to connect new devices to the terminal box as
shown in below.
X1
X1
POWER SUPPLY
X2
X2
MAIN PUMP
X3
X3
CISTERN PUMP
X4
3-WAY VALVE
X5
EXTERNAL ALARM (potential-free con-
tact)
X6
CISTERN LEVEL FLOAT SWITCH
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).
Commissioning steps:
ƒ
Pump venting: unscrew and remove the plug of the pump, fill the pump with clear
water by means of funnel (Fig. 11). Screw back the plug.
ƒ
Check that all flexible hoses are properly connected and tight.
N
GROUND
L1
U
GROUND
V
U
GROUND
V
NO
GROUND
NC
NEUTRAL
C
NO
C1
C2
WILO SE 2020-02