Technische Alternative UVR 16x2 User Manual

DHW circulation
161
DHW circulation
Standard diagram
Function description
Time control: The DHW circulation pump A is switched on via the time condition status and
remains on until the return sensor T.DHWcirc. reaches its set temperature. The sensor T.DHW is
not required. Outside the time window, an effective set temperature of 5.0 °C is issued for the DHW
circulation return, thus switching the pump off permanently.
Pulse control: A sudden change in temperature at a T.DHW temperature sensor or a change in
the status of a T.DHW flow switch causes the DHW circulation pump to be switched on for a
specified maximum runtime.
Combination of time and pulse control: Time control applies within the time window, pulse
control applies outside it.
The optional cylinder sensor T.cylinder can be used to implement mixing protection for all modes
Input variables
Enable
General enabling of the function (digital input signal ON/OFF)
Return temperature
Analogue input signal for the return temperature T.DHWcirc. on the
DHW circulation line
DHW temp.
Analogue input signal for the DHW temperature T.DHW or a digital
input signal from a flow switch (only required for Pulse mode)
Time condition status
Digital input signal, ON/OFF (e.g. from the Time switch function)
DHW circulation set
temperature
Analogue value specifying the DHW circulation set temperature
T.DHWcirc. set
Cylinder temperature
Optional: Analogue input signal for the cylinder temperature
T.cylinder (only required for Mixing protection)

Technische Alternative UVR 16x2 Specifications

General

Brand	Technische Alternative
Model	UVR 16x2
Category	Controller
Language	English