Wilo Yonos GIGA2.0-I Installation And Operating Instructions Manual page 128

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128
Installation
15. To mount the impeller, insert an open-end wrench with 27 mm width across flats
into the lantern window and hold the shaft steady at the wrench flats (Fig. II,
Item 16).
16. Install the impeller with lock washer and nut. Avoid damage to the mechanical seal
due to jamming.
17. Hold the shaft and tighten the impeller nut to the specified tightening torque (see
table "Screws and tightening torques" [} 128]).
18. Remove the open-end wrench and reinstall the protective plate (Fig. II, Item 27).
19. If the O-ring has been damaged: Clean the lantern groove and insert the new O-
ring (Fig. II, Item 19).
20. Attach motor impeller unit to the transport lugs with suitable lifting equipment for
protection. To prevent the unit from tipping, place a belt loop around the motor.
When attaching, avoid damaging the electronic module (Fig. 6/7).
21. Insert the motor impeller unit (Fig. 4) into the pump housing with the air vent valve
facing upwards. Observe the permitted installation positions of the components
when doing this.
22. Screw in the screws (Fig. II, Item 29).
23. Carefully pull the differential pressure sensor (Fig. I, Item 8) into the planned posi-
tion and turn it. To do this, touch the capillary tubes (Fig. I, Item 7) at the union
points of the differential pressure sensor. Make sure that the capillary tubes are
evenly deformed. Secure the differential pressure sensor to one of the screws on
the holder (Fig. I, Item 13). Slide the holder under the head of one of the screws
(Fig. II, Item 10). Finally, tighten the screw (Fig. II, Item 10).
24. Reconnect the connection cable of the differential pressure sensor.
25. Replace the transport lugs (Fig. I, Item 30) that were moved in step 1.
Tightening torques
Component Fig./
Item screw
(nut)
Transport lugs Fig. I, Item 30
Motor impeller Fig. I, Item 29
unit for pump
housing for
DN 32 ... DN 80
Motor impeller Fig. II, Item 29
unit for pump
housing for
DN 100 ...
DN 125
Lantern Fig. II, Item 10a
Fig. II, Item 10
Cast iron im- Fig. II, Item 21
peller
(DN 100 ...
DN 125)
Protective plate Fig. I, Item 27
Differential Fig. I, Item 8
pressure sensor
Capillary tube Fig. I, Item 5
screw connec-
tion to the
pump housing
90°
Thread Tightening
torque
[Nm] ±10 %
(unless other-
wise stated)
M8 20
M6 10
M16 100
M6 7
M12 70
M12 60
M5 3.5
Special 2
screw
R ⅛" brass Hand-tight,
suitably aligned
Installation in-
formation
Tighten evenly and
diagonally.
Tighten evenly and
diagonally.
Small screws first
Grease thread with
Molykote® P37.
Hold the shaft with
a 27 mm open-end
wrench.
Disc between pro-
tective plate and
lantern
Installation with
WEICONLOCK
AN 305‑11
WILO SE 2022-05