Switching Program Selection Circulating Pump - Siemens RVA63.242 User Manual

Benefit
Description
Setting
Effect
Forward shift
Siemens Building Technologies
Landis & Staefa Division

4.51 Switching program selection circulating pump

Efficient d.h.w. heating.
This selection permits operation of the d.h.w. circulating pump. D.h.w. circulation
prevents the d.h.w. from cooling down by the time it reaches the consumer.
Setting range
0 / 1
The setting changes the times the d.h.w. circulating pump operates.
Entry:
0 According to time switch program 2
1 According to the d.h.w. program (line 121)
4.51.1 According to time switch program 2, setting 0
The d.h.w. circulating pump (K6/K7) is switched at the times of "Time switch program 2"
(lines 12...18).
It is thus possible to operate the circulating pump only during individually set times of
usage.
4.51.2 According to d.h.w. program (line 121) setting 1
The d.h.w. circulating pump (K7) is switched according to the charging times of the
selected d.h.w. program (line 81).
It is thus possible to operate the circulating pump parallel to d.h.w. heating. This means
that the circulating pump is activated as soon as the d.h.w. is heated up to its nominal
temperature, independent of whether d.h.w. heating takes place according to local or
system-wide switching times.
The circulating pump does not follow any forward shift. This means it is operated in
accordance with the times of usage.
Basic Documentation RVA63.242, RVA53.242
Description of heating engineer settings
Unit
Increment
Factory setting
1
115/218
CE1P2373E
26.03.2001