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Siemens Building Technologies
Landis & Staefa Division
6.13
Overview of pump operation ...............................................................198
6.14
Frost protection.................................................................................199
6.14.1
For the boiler ....................................................................................199
6.14.2
For the d.h.w. ...................................................................................199
6.14.3
For the heating circuit ........................................................................200
7
Application examples.........................................................................201
7.1
Structure of plant diagrams.................................................................201
7.2
Heat source variants..........................................................................202
7.2.1
PPS-BMU........................................................................................202
7.2.2
Multi-stage burner .............................................................................203
7.2.3
Modulating burner .............................................................................203
7.2.4
Cascade 2 x 1 ..................................................................................204
7.2.5
Cascade slave ..................................................................................204
7.3
Plant types .......................................................................................205
7.3.1
Without system pump ........................................................................205
7.3.2
System pump before d.h.w. ................................................................206
7.3.3
System pump after d.h.w....................................................................207
7.3.4
System pump with external heat demand .............................................208
7.3.5
D.h.w. diverting valve .........................................................................209
7.3.6
Cascade 2 x 1 ..................................................................................210
7.4
Supplementary information on the plant types listed...............................210
7.5
Legend to plant types ........................................................................211
7.6
Electrical connections ........................................................................212
8
Dimensions ......................................................................................213
8.1.1
Panel cut-out ....................................................................................213
8.1.2
Combination of controllers ..................................................................213
9
Technical data..................................................................................214
Basic Documentation RVA63.242, RVA53.242
Contents
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CE1P2373E
26.03.2001
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