2.0 Functional description
District heating substation for direct heating and
instantaneous domestic hot water with thermostatic or
electronic controls. Designed for wall-mounting.
Application
The Termix VMTD Compact 28 is a complete solution with a
built-in water heater and a heating circuit with mixing loop. The
substation is the perfect solution for apartment buildings with up
to 25 apartments.
District heating (DH)
The district heating circuit is prefabricated with a flow controller
with integrated control valve as well as strainers and ball valves.
Furthermore the substation is delivered with a mixing loop, which
includes pump and non-return valve.
Heating (HE)
The heating circuit is designed for direct connection. The flow
controller with integrated control valve sets the optimum operation
conditions for radiator thermostats in order to enable individual
temperature control in each room.nThe mixing loop creates a
suitable temperature level for the heating system.
Domestic hot water (DHW)
The domestic hot water is prepared in the plate heat exchanger
and the temperature is regulated with thermostatic or electronic
controls. The efficient heat exchanger offers exceptionally good
heat extraction with high output. No readjustment of the DHW
temperature is required after installation and initial setting of the
controls. The thermostatic control valve automatically retains the
comfort temperature of the hot water, even when the heating
system is in reduced operation during summer or if the district
heating plant changes operating parameters between summer and
winter. This either by lowering or increasing the flow temperature
of the district heating water and/or the operating pressure in the
network.
2 | © Danfoss | 2019.01
VI.CW.Y5.02 / LUK42260
Operating Guide Termix VMTD MIX Compact 28
