82/106
Siemens
Basic Documentation RVP360
CE1P2546en
Building Technologies
18 Function block: Solar d.h.w.
2017-07-24
18 Function block: Solar d.h.w.
18.1 Operating lines
This function block provides settings for the heating engineer.
Line
Function, parameter
Factory setting
(range)
Unit
Heating
circuit
201
Temperature differential solar ON
8 (0…40)
K
–
202
Temperature differential solar OFF
4 (0…40)
K
–
203
Fost protection temperature for the collector
--- (--- / –20…5)
°C
–
204
Overtemperature protection for the collector
105 (--- / 30…240)
°C
–
205
Evaporation temperature of heat conducting medium
140 (--- / 60…240)
°C
–
206
Maximum limitation of charging temperature
80 (8…100)
°C
–
207
Maximum limitation storage tank temperature
90 (8…100)
°C
–
208
Collector start function gradient
--- (--- / 1…20)
min/K
–
18.2 General
In the case of plant types equipped with a d.h.w. storage tank, the RVP360 sup-
ports solar d.h.w. heating.
The function is activated …
when function "D.h.w. storage tank sensor" (operating line 126, setting 4 "Solar
d.h.w. heating with one sensor" or setting 5 "Solar d.h.w. heating with two sen-
sors") is parameterized,
and
when multifunctional relay K6 is parameterized for use with the collector pump
(operating line 141, setting 6).
Then, solar d.h.w. charging is always released. It is performed via the collector
pump based on the temperature differential of d.h.w storage tank and collector.
Solar charging control uses storage tank sensor B32 at the bottom.
If that sensor is not installed, storage tank sensor B31 at the top (if installed) is
automatically used.
During the time the solar circuit charges the storage tank, the display shows
.
B31
Storage tank sensor 1
B32
Storage tank sensor 2
B6
Collector sensor
Kx
Collector pump connected to K6