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Wilo Yonos MAXO-D User Manual

Wilo Yonos MAXO-D
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English
10 WILO SE 03/2015
WARNING! Risk of injuries to personnel and property damage!
The flange connection can be damaged and develop leaks if the pump is not installed
correctly. There is a risk of injury and damage to property due to hot fluid escaping.
Never connect two combination flanges to each other!
Pumps with combination flanges are not suitable for PN16 operating pressures.
The use of securing elements (e.g. spring rings) can result in leaks at the flange con-
nection. They are therefore not permitted. The washers supplied (fig. 3b, item 1) must
be inserted between screw/nut heads and the combination flange.
The permissible tightening torques listed in the table below must not be exceeded,
even if screws of higher strength ( 4.6) are used, since otherwise splintering can
occur at the edges of the long holes. This causes the screws to lose their pretension
and the flange connection can become leaky.
Use screws of sufficient length. The screw thread must protrude at least one thread
turn beyond the nut (fig. 3b, item 2).
fig.
Install appropriate flat gaskets between pump and counter flanges.
Tighten the flange bolts crosswise in two steps to the prescribed tightening torque
(see Table 7.1.2).
Step 1: 0.5 x permissible tightening torque
Step 2: 1.0 x permissible tightening torque
Check the flange connections for leaks.
7.1.3 Pump insulation in heating, refrigeration and air-conditioning systems
WARNING! Risk of burns!
The entire pump can become very hot. When retrofitting the insulation during normal
operation there is a risk of burns.
Thermal insulation shells (optional accessories) are only permissible in heating applica-
tions with fluid temperatures starting from +20°C, since these thermal insulation shells
are not diffusion-proof when enclosing the pump housing. Install a thermal insulation
shell before commissioning the pump.
For refrigeration system and air-conditioner applications, use commercially available dif-
fusion-proof insulation materials.
DN 32, 40, 50, 65 Nominal pressure PN6 Nominal pressure PN10/16
Screw diameter M12 M16
Strength class 4.6 or higher 4.6 or higher
Permitted tightening torque 40 Nm 95 Nm
Min. screw length for
DN 32/DN 40 55 mm 60 mm
DN 50/DN 65 60 mm 65 mm
DN 80, 100 Nominal pressure PN6 Nominal pressure PN10/16
Screw diameter M16 M16
Strength class 4.6 or higher 4.6 or higher
Permitted tightening torque 95 Nm 95 Nm
Min. screw length for
DN 80 65 mm 65 mm
DN 100 70 mm 70 mm

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Wilo Yonos MAXO-D Specifications

General IconGeneral
BrandWilo
ModelYonos MAXO-D
CategoryWater Pump
LanguageEnglish

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