Functional Description - Danfoss Termix One-Q Operating Manual

Operating Guide Termix One-Q

2.0 Functional description

District heating substation for direct heating and
instantaneous domestic hot water with a self-acting
thermostatic/flow controller. Designed for wall-mounting.
Application
The Termix One is an instantaneous water heater featuring superb
heat extraction and high performance. The Termix One is suitable
for flats, single-family houses as well as for small apartment
buildings with up to 10 apartments. The water heater is available in
three sizes, either for 1 apartment, for 1‑4 apartments or for 5 up
to 10 apartments. The Termix One is applicable for decentralized
heating systems – as well as for district heating networks with
summer operation at low temperatures or changes in differential
pressure. The Termix One heat exchanger cools out the district
heating water very efficiently, thereby creating a very good
operation economy.
Domestic hot water (DHW)
The domestic hot water is prepared in the heat exchanger and
the temperature is regulated with a self-acting thermostatic
control valve that controls the DHW preparation by using a
flow-compensation principle. The rapid closing of the control
valve protects the heat exchanger against over heating and lime
scale formation. The control valve ensures a stable hot water
temperature by varying loads, flow temperatures and differential
pressure without the need for readjusting the valve. The heat
exchanger cools out the district heating water very efficiently,
thereby creating a very good operating economy. The control
valve also works as a bypass keeping the house supply line at 35 °C
during standstill. This shortens the waiting periods during summer
when the heating system is in reduced operation.
2 | © Danfoss | 2024.01
AQ092386472759en-020601 / LUK38020