en Installation and electrical connection
8 WILO SE 2021-12
6 Installation and electrical con-
nection
DANGER
Risk of fatal injury!
Incorrect installation and improper electrical connections can be life-threatening.
• Installation and electrical connection only by qualified personnel.
• Carry out work in accordance with locally applicable regulations.
• Adhere to accident prevention regulations.
6.1 Installation
WARNING
Risk of burns from hot surfaces!
Pump housing and glandless motor may become hot and cause burns if touched.
• During operation only touch the control module.
• Allow the pump to cool down before commencing any work.
WARNING
Risk of scalding from hot fluids!
Hot fluids can cause scalding.
Before the installation or removal of the pump or the dismantling of the housing
screws, observe the following:
• Allow the heating system to cool down completely.
• Close shut-off devices or drain the heating system.
6.1.1 Preparation
CAUTION
An incorrect installation position may damage the pump.
• Select the installation point according to the permitted installation posi-
tion(Fig.2).
• The motor must always be installed horizontally.
• The electrical connection must never face upwards.
Fig.2: Installation positions
ƒ Choose an installation point that is easily accessible.
ƒ Observe the pump's allowable installation position(Fig.2), rotate the motor
head(2+6) if necessary.
ƒ Install shut-off valves upstream and downstream of the pump to facilitate pump
replacement.
CAUTION!Leaking water may damage the control module!
Align the upper shut-off valve on the side so that leaking water cannot drip
onto the control module(6).
ƒ When installing in the feed of open systems, the safety supply must branch off up-
stream of the pump (EN12828).
ƒ Complete all soldering and welding work.
ƒ Flush the pipeline system.
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