Standby Heating Connection; Commissioning - Wilo CronoLine-IL Notice De Montage Et De Mise En Service

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W2 U2 V2
U1 V1 W1
L1 L2 L3
W2 U2 V2
U1 V1 W1
L1 L2 L3
W2 U2 V2
U1 V1 W1
Fig. 12: Mains connection
Start-up type
Direct
Y-Ó starting
7.3

Standby heating connection

8

Commissioning

Safety
32
NOTE
• The PTC thermistor sensor terminals must not be supplied with more
than 7.5 V. Higher voltages will destroy the PTC thermistor sensors.
• The mains connection to the terminal board is dependent on the
motor power P
mended switching arrangement of the connection bridges in the ter-
minal box should be taken from the following table and Fig. 12.
• When connecting automatic switching devices, observe the relevant
installation and operating instructions.
Motor power P
Mains voltage 3 ~ 230 V
Ó-circuit (Fig. 12 top)
Remove connection bridges
(Fig. 12 below)
We recommend standby heating for motors which, due to climatic
conditions, are at risk of condensation (e.g. stationary motors in moist
atmospheres, or motors exposed to extreme variations in tempera-
ture). Corresponding motor variations which are equipped with
standby heating at the factory, can be ordered as a special version.
Standby heating is used to protect the motor windings against con-
densation water inside the motor.
• The standby heating is connected to the terminals HE/HE in the ter-
minal boxes (connection voltage: 1~230 V/50 Hz).
NOTE
• The standby heating may not be switched on during motor operation.
DANGER! Risk of fatal injury!
Failure to install safety devices on the terminal box or module
cover or near the coupling can cause electrical shock or contact
with rotating parts, potentially resulting in life-threatening inju-
ries.
• After commissioning or maintenance, all safety devices such as
terminal box covers, module covers or coupling covers that were
removed must be reinstalled!
• Keep a safe distance during commissioning.
, the mains voltage and the start-up type. The recom-
2
i 3 kW
2
Mains voltage 3 ~ 400 V
Y-circuit (Fig. 12 centre)
Not possible
j 4 kW
Motor power P
2
Mains voltage 3 ~ 400 V
Ó-circuit (Fig. 12 top)
Remove connection bridges
(Fig. 12 below)
WILO SE 09/2010