Connection Options; Double Pumps; Put Into Operation - Wilo Yonos MAXO/-D Notice De Montage Et De Mise En Service

6.3

Connection options

➜ Fig.
12
3~ 400 V without neutral conductor N: Upstre-
am power transformer.
6.4

Double pumps

Only operate as main and standby pump with automatic
fault-actuated switchover:
◾ Individually connect and secure both motors.
Provide separate switchgear.
◾
Make the identical settings.
◾
6.5 Collective fault signal (SSM)
The contact of the collective fault signal (potential-free
normally closed contact) can be connected to a building
automation system. Internal contact is closed in the
following cases:
◾ The pump has zero current.
◾ There is no fault.
◾ The control module has failed.
DANGER
Danger to life through voltage transmission, if mains and
SSM pipe are led together through a 5-wire cable.
◾ Do not connect SSM pipe to protective low voltage.
◾ Use 5 x 1.5 mm² cable.
During connection of the SSM pipe to the network po-
tential:
◾ SSM phase = live wire L1
6.6 Connect
➜ Fig. to
13 19
7

Put into operation

7.1 Venting
1. Charge the system appropriately and ventilate.
▶ The pump is self-ventilating.
7.2 Adjusting the operating mode
1. Adjust desired operating mode with operating
knob ➜ Fig. .
20
▶ The LED display shows the operating mode (c1, c2, c3)
or the setpoint value in m (at
7.3 Troubleshooting
The red LED lights up when a fault occurs; additionally an
error code will show on the LED display.
Observe detailed instructions on the Internet
➜ page 2.
Put into operation
p-c, p-v).
D D
21
EN