Burner Requirement Using Holding Circuit - Program 12; Preparation Of Hot Water - Program 16, 17 (Only For Speed Version Esr31-D) - Technische Alternative ESR 31 Manual De Instrucciones

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Burner requirement using holding circuit - program 12

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.
Preparation of hot water – program 16, 17
Diagram for program 16 without flow switch S3
Diagram for program 17 with flow switch S3
10
A
CW
Required settings :
max ... limit S1
min ... switch-on threshold S2
(only ESR31-D)
Required settings :
DVA ... desired value for absolute value
control S2
DVD ... desired value for differential con
troll S1–S2
(ex works = 65°C)
(ex works = 40°C)