PAW HeatBloC K38 DN 25, Installation And Operation Instruction Manual

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3 Product description
2020/04 993x083x-mub-en – V04 7
3.2 Function
K38 – with 4-way mixing valve
K38 allows to keep up the boiler return temperature
and to maintain a minimum boiler flow rate
(with boiler circuit pump). A part of the flow water from
the boiler is mixed into the return from the consumers,
depending on the adjustment of the mixing valve.
A boiler circuit pump is usually necessary.
When K38 is mounted on a distribution manifold,
a boiler circuit pump is mandatory. In this case the
4-way mixing valve serves as a hydraulic separator
(depending on the adjustment of the mixing valve).
Application range:
• for heating systems controlled by a mixing
valve in combination with a boiler temperature
maintenance
•
to maintain a minimum boiler flow rate