Technische Alternative ESR31-D User Manual

10
Program 12 - Burner requirement using holding circuit
The output switches on when S2 < min and only switches off when S1 > max. In other
words, boiler requirement when S2 falls short of min in the upper storage area and switch-
off when S1 exceeds max in the lower part of the tank. The output terminal is not poten-
tial-free.
Program 16, 17 Preparation of hot water (only ESR31-D)
Diagram for program 16 without flow
switch S3
Diagram for program 17 with flow switch
S3
Required settings :
max … limit S1
(ex works = 65°C)
min … switch-on threshold S2
(ex works = 40°C)
Required settings :
DVA … desired value for absolute value
control S2
DVD … desired value for differential con
troll S1–S2
Program 17: Setting of sensor 3 as a digital
input in the menu MEN/Sensor
Program 18: setting of sensor S2 as VTS
(vortex temperature sensor)
and sensor S3 as VF2 (vortex volume flow
encoder) in the menu MEN/Sensor
Menu PAR: min threshold of the flow in l/h
(ex works = 5 l/h)
possible other settings in the PSC-menu
(PRO/INT/DIF/MIN/MAX)
A
CW

Technische Alternative ESR31-D Specifications

General

Brand	Technische Alternative
Model	ESR31-D
Category	Control Unit
Language	English