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2. Devices and functional description
Functional description
This thermally insulated, compact pump group allows two heating circuits to be supplied by high-efficiency pumps via a
common distribution bar. The heating circuits can be mixed (MK) or unmixed (UK). Connectors for temperature sensors are
located on both the supply line and the distributor. The distribution bar can be switched from the standard to a low differ-
ential pressure distributor via a switching valve. A backflow preventer is installed in each supply line. As an optional extra, a
third heating circuit can be connected, e.g. for heating domestic water.
2.1 Technical data
Dimension
Outputs:
Per heating circuit (mixed or unmixed)
Connections:
- To heating circuits
- To boiler
Axial distances
- To heating circuits
- To boiler
Pump
Insulating cover,
external dimensions H x W x D
Components made of
Sealing material
Operating temperature
Operating pressure
DN 20
Max. 20 kW (at dT=10 K)
¾" internal thread
1" external thread
90 mm
270 mm
Appropriate for the design or model
EPP
460 x 410 x 261 mm
Steel, brass
PTFE, asbestos-free fibre sealant, EPDM
Up to 110°C (observe operating temp. of the pump)
PN 6
21
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