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Siemens Building Technologies
Basic Documentation RVP540 / RVP550
CE1P2488en
HVAC Products
Description of the heating engineer settings
18.10.2002
4.161 Difference between the maximum storage
tank temperature (MSP) and the buffer
storage tank safety temperature
The temperature differential is used to define the maximum storage tank temperature
(MSP). It refers to the buffer storage tank safety temperature.
Setting range
Unit
Factory setting
1...50 °C
5
If TPx exceeds the maximum storage tank temperature (MSP) by
half
the temperature
differential, priority 2 will be activated. If TPx falls below the maximum storage tank
temperature, priority 2 will be deactivated.
4.162 Hysteresis for buffer storage tank cooling
function with priority 1
The switch-off point for the buffer storage tank cooling function with priority 1 can be set
via a hysteresis.
Setting range
Unit
Factory setting
1...20 °C
5
When the maximum buffer storage tank temperature (MSP) is reached, the buffer stor-
age tank cooling functions with priority 1 will be activated and then deactivated via the
hysteresis (also refer to graph on the previous page).
23
92
Z
41
on
off
Prio 1
TPx
MSP
°C
472
Maximum buffer storage tank charging temperature
MSP
Maximum buffer storage tank temperature = operating line 450
EXP
– operating line 489
TPx
Actual value at the buffer storage tank sensor at the bottom
Description
Setting
Effect
Description
Setting
Effect