Wilo Yonos GIGA2.0-I Installation And Operating Instructions Manual page 204

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18.2.3 Replacing the electronic module
204
Maintenance
⇒ Version DN 32 ... DN 80, Fig. I
3. Remove the motor/drive with impeller and shaft seal from the pump housing by
loosening the flange screws (Fig. I, Item 29).
4. Removing the screws (Fig. I, Item 29) also detaches the differential pressure sensor
from the motor flange. Suspend the differential pressure sensor (Fig. I, Item 8) with
the holder (Fig. I, Item 13) from the pressure measuring lines (Fig. I, Item 7).
⇒ Version DN 100 ... DN 125, Fig. II
5. To dismantle the motor, carry out steps 19 ... 29 according to section "Changing
the mechanical seal" [} 200].
Installation
1. Clean the flange support and centring surfaces of the pump housing, lantern and
motor flange to ensure proper positioning of the parts.
⇒ Version DN 32 ... DN 80, Fig. I
2. Insert the motor/drive with impeller and shaft seal into the pump housing and
screw in the flange screws (Fig. I, Item 29), but do not finally tighten them yet.
3. Before installing the electronic module, pull the new O-ring (Fig. I, Item 31)
between the electronic module (Fig. I, Item 1) and the motor adapter (Fig. I,
Item 11) onto the contacting chamber.
4. Press the electronic module into the new motor contacting and fasten with screws
(Fig. I, Item 4).
5. To install the drive, carry out steps 19 ... 23. See section "Replacing the mechanical
seal" [} 200], "Installation".
⇒ Version DN 100 ... DN 125, Fig. II
6. To install the drive, carry out steps 10 ... 18. See section "Replacing the mechanical
seal" [} 200], "Installation".
7. Before installing the electronic module, pull the new O-ring (Fig. I, Item 31)
between the electronic module (Fig. I, Item 1) and the motor adapter (Fig. I,
Item 11) onto the contacting chamber.
8. Press the electronic module into the new motor contacting and fasten with screws
(Fig. I, Item 4).
9. To install the drive, carry out steps 19 ... 23, see section "Replacing the mechanical
seal" [} 200], "Assembly".
NOTICE
The electronic module must be pressed on as far as possible when it is installed.
Always observe the section "Commissioning" before carrying out any work!
DANGER
Risk of fatal electrical shock!
If the rotor is driven via the impeller when the pump is at a standstill, a dangerous
contact voltage can occur at the motor contacts.
• Close the shut-off device upstream and downstream of the pump.
NOTICE
The magnets inside the motor do not pose a risk to persons with pacemakers
provided that the motor is not opened and the rotor is not dismantled. The elec-
tronic module can be replaced without any risk.
1. To dismantle the electronic module, carry out steps 1 ... 5 according to section
"Changing the mechanical seal" [} 200].
2. Remove the screws (Fig. I, Item 4) and remove the electronic module from the mo-
tor.
3. Replace the O-ring (Fig. I, Item 31).
WILO SE 2022-05