Technische Alternative UVR 16x2 User Manual

DHW demand
34
➢ Charge once: If a short ON signal (e.g. pulse from a pushbutton) is sent, charging is
initiated once until either ("T.DHW min.", "Set temperature charge once" or "T.DHW set") +
"Diff. off" is reached, whichever is higher. "Charge once" works independently of "Time
condition status" or the status of the external switch. It can also be started from the
Parameter menu.
➢ Finish charging: If the input variable is set to OFF and the cylinder is being charged to
T.DHW set, when the time window ends (changeover to T.DHW min.) the function will
change over immediately to the set temperature T.DHW min.
On the other hand, if the input variable is set to ON the function will finish charging the
cylinder to T.DHW set and only then will it change over to the set temperature T.DHW min.
Parameters
T.DHW top
T.DHW min. top
T.DHW set top
Diff.on
Diff. off
(shown only if no second
bottom sensor is defined)
Display of the required minimum temperature top (outside the time
window)
Display of the required DHW temperature top
Start differential for T.DHW set top / T.DHW min. top
Stop differential for T.DHW set top / T.DHW min. top
T.DHW bottom
(shown only if a second
bottom sensor is defined)
T.DHW min. bottom
T.DHW set bottom
Diff. off
Display of the required minimum temperature bottom (outside the
time window)
Display of the required DHW temperature bottom
Stop differential for T.DHW set bottom / T.DHW min. bottom
Generator output
Specifies the output of the heat generator [e.g. boiler] as % (to one
decimal place)
Single charging start
If this button is pressed outside a time window, the cylinder is charged
once up to the temperature T.DHW set + Diff. off. "Charge once" is
not possible if the external switch is set to ON.
➢ Starting demand by one sensor and stopping it by another is called using a holding circuit.
Start threshold = set value + Diff. on at the sensor
Stop threshold = set value + Diff. off at the sensor
Example: T.DHW set top = 40 °C
T.DHW set bottom = 60 °C
Diff. on = 8.0 K
Diff. off = 1.0 K
In other words, if the temperature falls below T.DHW 48 °C (= 40 °C + 8.0 K) at the top
sensor, the output becomes active, and it is deactivated if the temperature exceeds 61 °C
(= 60 °C + 1.0 K) at the bottom sensor.

Technische Alternative UVR 16x2 Specifications

General

Brand	Technische Alternative
Model	UVR 16x2
Category	Controller
Language	English