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• Install check valves upstream and downstream of the pump to facilitate a possible
pump replacement.
• Perform installation so that any leaking water cannot drip onto the control module.
• To do this, align the upper gate valve laterally.
• In thermal insulation work, make sure that the pump motor and the module are not
insulated. The condensate-drain openings must remain uncovered.
• Install with the power switched off and the pump motor in a horizontal position.
See Fig. 3 for installation positions of the pump.
• Other installation positions on request.
• Direction arrows on the pump housing indicate the direction of flow.
• If the installation position of the module is changed, the motor housing has to be
turned as follows:
• Loosen the internal hexagon screws
• Turn the motor housing, including control module.
NOTE: Generally turn the motor head before the installation is filled. When turning
the motor head in an installation which is already filled, do not pull the motor head
out of the pump housing.
Turn the motor head with a small amount of pressure on the motor unit so that no
water can come out of the pump.
CAUTION! Risk of damage to property!
The gasket may be damaged when the motor housing is turned.
• Screw the internal hexagon screws back in and tighten them.
7.3 Electrical connection
CAUTION! Danger of death!
A fatal shock may occur if the electrical connection is not made correctly.
• Only allow the electrical connection to be made by an electrician approved by
the local electricity supplier and in accordance with the local regulations in force.
• Disconnect the power supply before any work.
• If setting and operating elements are improperly removed, there is a danger of
electric shock if interior electrical components are touched.
High-efficiency pumps may not be operated with phase angle control!
CAUTION! Risk of damage to property!
When the pump is switched on/off by external control devices, the mains voltage
pulsing (e.g. phase angle control) must be deactivated to prevent damage to the
electronics.
• For applications where it is not clear whether the pump will be operated with
pulsed pump voltage, e.g. with storage charge pumps, the manufacturer of the
control system must confirm that the pump can be operated with sinusoidal AC
voltage.
22
05/2015
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