Variants
7
Installation and electrical
connection
Safety
Installation and operating instructions LRE, JRE
If the menu <5.7.2.0> "Pressure value correction" is not available on
the display of a given pump, that pump is a variant in which the fol-
lowing functions are not available:
• Pressure value correction (menu <5.7.2.0>)
• Efficiency-optimised activation and deactivation in double pumps
• Flow rate trend display
DANGER! Risk of fatal injury!
Incorrect installation and improper electrical connections can be
life-threatening.
• Have the electrical connections established by licensed electri-
cians only, in compliance with the applicable regulations!
• Adhere to regulations for accident prevention!
DANGER! Risk of fatal injury!
Failure to install safety devices on the electronic module or near
the coupling/motor can cause electrical shock or contact with
rotating parts, potentially resulting in life-threatening injuries.
• Before commissioning, all safety devices such as module covers or
coupling covers that were removed must be reinstalled!
CAUTION! Risk of property damage!
Risk of property damage if the electronic module is not installed.
• Normal operation of the pump is only permitted with the electronic
module installed.
• The pump is not allowed to be connected or operated without the
electronic module being installed.
DANGER! Risk of fatal injury!
The pump itself and pump parts can be extremely heavy. Falling
parts pose a risk of cuts, crush injuries, bruises or impacts, which
may lead to death.
• Always use suitable lifting equipment and secure parts against falling.
• Never stand underneath a suspended load.
• Make sure the pump is securely positioned and is stable during
storage and transport as well as prior to all installation and other
assembly work.
CAUTION! Risk of property damage!
Danger of damage due to incorrect handling.
• Have the pump installed by qualified personnel only.
• The pump may never be operated without the electronic module
being installed.
CAUTION! Damage to the pump due to overheating!
The pump must not be allowed to operate dry for more than 1 min-
ute. Dry running causes a build-up of energy in the pump, which
can damage the shaft, impeller, and mechanical seal.
• Make sure that the volume flow does not fall below the minimum
value Q
.
min
Calculation of Q
:
min
Q
= 10% x Q
x
min
max pump
Actual speed
max. speed
English
73