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Siemens Building Technologies Basic Documentation RVD110, RVD130 CE1P2381E
HVAC Products 10 Function block Plant configuration 27.05.2004
10 Function block Plant configuration
10.1 Operating lines
Line Function, parameter Unit Factory setting Range
51 Plant type 1 RVD110: 1...3
RVD130: 1...8
52 Space heating present 1 0 / 1
53 Use of universal sensor at terminal B71 1 0 / 1
54 Flow switch / circulating pump present
(offsetting heat losses)
0 0...3
55 Return flow of circulating pump 0 0...2
56 Pump kick 1 0 / 1
57 Winter- / summertime changeover dd.MM 25.03 01.01. …31.12
58 Summer- / wintertime changeover dd.MM 25.10 01.01. …31.12
10.2 Plant configuration
• With the RVD110, plant types no. 1...3 are available; with the RVD130, all plant
types (1...8). For a detailed description of the individual plant types, refer to section
3.2 ”Plant types”
• With plant types no. 2...8, it is possible to have no space heating and to use the
RVD110 / 130 for d.h.w. heating only (setting 0 on operating line 52)
• With plant types no. 4, 6 and 7, the temperature sensor connected to terminal B71
can be used in 1 of 2 ways:
− As a return temperature differential sensor: In that case, it is used as a return
temperature sensor in the heating circuit’s secondary return. The d.h.w. tempera-
ture must then be acquired with a thermostat, to be connected to the binary input
H5. Entry on operating line 53 = 0
− As a d.h.w. temperature sensor: In that case, the return temperature differential
cannot be measured. Entry on operating line 53 = 1
• With plant types no. 4 and 5, it must be entered on operating line 54 whether a flow
switch or circulating pump, or both, are present.
For detailed information, refer to subsection 17.4.4 “Offsetting the heat losses”
• With plant types no. 6 and 7, it is possible to select on operating line 55 where the
return water of the circulating pump shall be fed:
− The return water will be fed to the d.h.w. storage tank or there is no circulating
pump present (setting = 0)
− The return water is fed to the return of the d.h.w. heat exchanger (setting = 1)
For more information, refer to section 17.5 ”Instantaneous d.h.w. heating with stor-
age tanks”.
Through the selection of the required plant type, heating circuit, sensor connected to
B71, flow switch and return water of circulating pump, all functions and settings re-
quired for the respective type of plant, and the assigned operating lines, will be acti-
vated. All other operating lines remain deactivated.
10.3 Device functions
• The pump kick function can be activated or deactivated on operating line 146 (refer
to section 11.10.2 “Pump kick“)
• The change from wintertime to summertime, and vice versa, is made automatically. If
international regulations change, the relevant changeover dates can be entered on
operating lines 144 and 145. The entry to be made is the earliest possible change-
over date. The weekday on which changeover occurs is always a Sunday
Example
If the start of summertime is specified as "The last Sunday in March", the earliest
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