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Siemens Basic Documentation RVP340, RVP350, RVP351 CE1P2545en
Building Technologies 15 Function block: Multifunctional relays 15.03.2011
Op. line
121
Op. line
141
Con-
troller
Operating
mode
Heating program,
holidays
Circulating
pump
A
06:00...18:00
B
07:00...23:00
C
07:00...22:00
2 4
D
03:00...22:00, holi-
days
Circulating
pump runs
from
06:00 to 23:00
Op. line
121
Op. line
141
Con-
troller
Operating
mode
Heating program,
holidays
Circulating
pump
2 4
A
06:00...18:00, opti-
mized switching on
produces a forward
shift of 2 hours
B
08:00...23:00
C
07:00...22:00
D
05:00...21:00
Circulating
pump runs
from
4:00 to 23:00
In holiday mode, the circulating pump runs according to the setting made, as
shown in the following table:
Op. line
121
Op. line
141
Operation of circulating pump
0 3, 4 or 5 Circulating pump OFF when own controller operates in
holiday mode
1 3, 4 or 5 Circulating pump OFF when all controllers in the same
segment operate in holiday mode
2 3, 4 or 5 Circulating pump OFF when all controllers in the intercon-
nected system operate in holiday mode
15.2.5 Collector pump
The multifunctional relay is used to control the collector pump.
Activation of the collector pump is dependent on the temperatures acquired in the
storage tank and the collector.
Op. line
141 142
Function
6 1 Collector pump
The storage tank sensor(s) used is (are) selected via operating line 126.
The settings required for solar d.h.w. charging must be made via operating lines
201 – 208.
15.2.6 Type of d.h.w. charging
The type of d.h.w. charging must be entered on operating line 141 or 142.
Basically, 2 choices are available:
Charging via the heating system, or
Charging in alternating mode via the heating system or
with the electric immersion heater.
The setting has no impact on solar d.h.w. charging.
This is put into operation, independently of this setting, provided the respective
switch-on criteria are satisfied.
Example 1
Example 2
Operation of circulating
pump during holiday
periods
Note
67


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