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English
3 Description and function
3.1 Intended use
The circulation pumps in this series are designed for warm
water heating systems and similar systems with constantly
changing flow volumes. Approved fluids are heating water
in accordance with VDI 2035, water/glycol mixture at a mix-
ing ratio of 1:1. If glycol is added, the delivery data of the
pump must be corrected according to the higher viscosity,
depending on the mixing ratio percentage.
Intended use of the pump/installation also includes follow-
ing these instructions.
Any other use is not regarded as intended use.
3.2 Product description
The pump (Fig. 1/1) consists of a hydraulic system, a glan-
dless pump motor with a permanent magnet rotor, and an
electronic control module with an integrated frequency con-
verter.
The control module has an operating knob together with an
LED display (Fig. 1/2) for setting all parameters and for dis-
playing the current power consumption in W.
3.3 Functions
All functions can be set, activated or deactivated using the
operating knob.
In the operating mode, the current power consumption in W
is displayed.
When the knob is turned, the LED display shows the deliv-
ery head in "m"
or the speed stage.
