English
3.3
Functions
All functions can be set, activated, or deactivated using the
operating button.
When in operating mode, the current power consumption in
W is displayed.
When the button is turned, the LED display shows the deliv-
ery head in "m"
or the speed stage.
Control modes
Variable differential pressure (Δp-v):
If the volume flow in the pipe network decreases, the pump
reduces the delivery head by half (Fig. 2a).
Constant differential pressure (Δp-c):
The control keeps the set delivery head constant irrespec-
tive of the volume flow delivered (Fig. 2b).
3 speed stages (c1, c2, c3):
c1, c2, c3
The pump runs uncontrolled in three prescribed fixed speed
stages (Fig. 2c).
4 Installation and electrical connection
4.1
Installation
DANGER: Before starting work, make sure that the
pump is disconnected from the power supply.
Installation site
• Provide a weatherproof, frost-free, dust-free, and
well-ventilated room for the installation. Choose an easily
accessible installation site.
36