Function Block Plant Configuration; Operating Lines; Plant Configuration; Device Functions - Siemens RVD110 Basic Documentation

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HVAC Products
10

Function block Plant configuration

10.1

Operating lines

Line Function, parameter
51 Plant type
52 Space heating present
53 Use of universal sensor at terminal B71
54 Flow switch / circulating pump present
(offsetting heat losses)
55 Return flow of circulating pump
56 Pump kick
57 Winter- / summertime changeover
58 Summer- / wintertime changeover
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
Basic Documentation RVD110, RVD130
10 Function block Plant configuration
Unit Factory setting
1
1
1
0
0
1
dd.MM 25.03
dd.MM 25.10
Range
RVD110: 1...3
RVD130: 1...8
0 / 1
0 / 1
0...3
0...2
0 / 1
01.01. ...31.12
01.01. ...31.12
CE1P2381E
27.05.2004