District Heating Return Temperature Limit - Honeywell SDC heating and district heating controller Service Manual

SDC / DHC
7.2.3
EN2H-0221GE51 R0808

District heating return temperature limit

Many district heating companies require min. volume flows in their
networks. This can be achieved through a high temperature
differential between the flow and return.
a Example 1 (factory setting) e
b Return temperature limit
c Example 2
d Example 3
Hydraulic Components
Example 4
f Starting points of the
flexible return temperature
limit in examples 3 and 4
x Return setpoint
y Outside temperature
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