Dismantling / Installation Of The Control Module - Wilo Stratos Betriebsanleitung

English
The motor does not have to be completely removed from the pump housing if
only the control module is to be repositioned. The motor can be turned to the
desired position whilst still attached to the pump housing (see permissible
installation positions as per Fig. 2a and Fig. 2b).
NOTE: Generally, turn the motor head before the system is filled.
CAUTION! Risk of damage to property!
If for maintenance or repair work the motor head is detached from the pump
housing, the O ring located between the motor head and pump housing must
be replaced with a new one. When installing the motor head, check that the
O ring is correctly seated.
• To release the motor, undo four socket-head screws (Fig. 5, pos. 2).
CAUTION! Risk of damage to property!
Do not damage the O ring located between the motor head and the pump
housing. The O ring must lie in the angled end shield that faces the impeller,
and must not be twisted.
• After the installation tighten the 4 socket-head screws again crosswise.
• The control module can be disconnected from the motor by undoing two screws
if the screws on the motor flange cannot be accessed, see Chapter 9.2.
• For the commissioning of the pump, see Chapter 8.

9.2 Dismantling / installation of the control module

WARNING! Risk of injury and damage to property!
Incorrect dismantling/installation can lead to injuries and damage to property.
Observe the hazard information in Chapter 9.1.
DANGER! Risk of fatal electrical shock!
Even without the module (without electrical connection), there may be
dangerous contact voltage at the motor contacts (cause: generator
operation when fluid flows through the pump). Do not stick any objects (e.g.
nail, screwdriver, wire) into the motor's contacts.
The control module is disconnected from the motor by undoing two screws
(Fig. 4):
• Undo the screws of the terminal box cover (item 1)
• Remove the terminal box cover (item 2).
• Undo the M5 internal hexagon screws (SW4) in the control module (item 3)
• Pull the control module off the motor (item 4).
• Install the module in the reverse order. Do not forget to install the flat gasket
(item 5) between the motor housing and control module.
86 WILO SE 12/2012