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10.6.4
Screw tightening torques
A
A
C
A
C
A
Fig. 60: Screw tightening torques, unit
11
Spare parts
Installation and operating instructions Wilo-Yonos GIGA-N
Spare parts
CAUTION
Risk of material damage due to lack of ventilation of the electronic mod-
ule!
For motor power of ≥ 11 kW, the electronic module has a built-in speed-controlled
fan for cooling. The fan switches on automatically if the heat sink reaches 60 °C.
The fan draws in air from the outside, which is guided over the outer surface of the
heat sink. It only runs when the electronic module is operated under load. Depending
on the prevailing ambient conditions, dust is sucked in by the fan, which can accu-
mulate in the heat sink.
• Check the electronic modules from 11 kW for contamination at regular intervals.
• Clean fan and heat sink if required.
Component
Control terminals
Power terminals
Earth terminals
Electronic module –
motor
(tie bolts)
Module cover
Threaded cable
gland union nut
Table 20: Screw tightening torques for electronic module
B
D
When tightening the screws, use the following tightening torques.
ƒ
A (pump)
Thread:
Tightening torque
[Nm]
Table 21: Screw tightening torque A (pump)
ƒ
B (coupling): refer to "Tightening torques for adjusting screws and coupling halves"
C
table in "Coupling alignment" chapter.
ƒ
C (baseplate): refer to "Tightening torques for pump and motor" table in "Alignment
of the pump unit" chapter.
ƒ
D (electronic module): 5 Nm, see also "Screw tightening torques for electronic mod-
ule" table in "Installing the electronic module" chapter
Spare parts may be ordered via a local installer and/or Wilo customer service. List of ori-
ginal spare parts: Refer to the Wilo spare parts documentation and the following in-
formation in these installation and operating instructions.
Thread
Tightening torque
[Nm] ± 10 %
–
0.5
–
1.5 ... 7.5 kW: 0.5
11 ... 22 kW: 1.3
–
0.5
–
4.0
1.5 ... 7.5 kW: M4
1.5 ... 7.5 kW: 0.8
11 ... 22 kW: M6
11 ... 22 kW: 4.3
M12x1.5
3.0
M16x1.5
6.0
M20x1.5
8.0
M25x1.5
11.0
M40x1.5
16
M8
M10
M12
25
35
60
en
Installation in-
formation
1x threaded cable
gland M12 reserved
for connecting
cable for an op-
tional differential
pressure sensor
M16
M20
M24
100
170
350
63
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