Siemens RVD240 Basic Documentation page 7

Siemens Building Technologies
HVAC Products
16.1.7 Storage tank with electric immersion heater.................................................. 64
16.2 D.h.w. heating with stratification storage tank ............................................... 64
16.2.1 General.......................................................................................................... 64
16.2.2 D.h.w. heating................................................................................................ 65
16.2.3 Feeding the circulating water into the heat exchanger .................................. 65
16.3 Direct d.h.w. heating...................................................................................... 65
16.3.1 General.......................................................................................................... 65
16.3.2 D.h.w. heating................................................................................................ 65
16.3.3 Protection against cooling down.................................................................... 66
16.3.4 Siting the sensors .......................................................................................... 66
16.3.5 Flow switch .................................................................................................... 67
16.3.6 Compensation of heat losses through control ............................................... 67
16.3.7 Cold water sensor.......................................................................................... 68
17 Function block Extra legionella functions ...................................................... 69
17.1 Operating lines .............................................................................................. 69
17.1.1 Legionella function......................................................................................... 69
17.1.2 Setpoint ......................................................................................................... 69
17.1.3 Time............................................................................................................... 69
17.1.4 Dwelling time ................................................................................................. 69
17.1.5 Operation of circulating pump........................................................................ 70
17.1.6 Maximum limitation of the return temperature ............................................... 70
17.2 Mode of operation.......................................................................................... 70
18 Function block Valve actuator d.h.w.............................................................. 72
18.1 Operating lines .............................................................................................. 72
18.2 Mode of operation.......................................................................................... 72
18.3 Control process ............................................................................................. 72
18.4 Setpoint boost................................................................................................ 72
18.4.1 Charging boost .............................................................................................. 73
18.4.2 Flow temperature boost................................................................................. 73
18.5 Maximum setpoint of the d.h.w. temperature ................................................ 73
18.6 D.h.w. charging with two storage tank sensors ............................................. 73
18.7 Adjustable load limit....................................................................................... 73
18.7.1 Adjustment to the time of year....................................................................... 73
18.7.2 Load limit ....................................................................................................... 74
18.7.3 Child-proofing ................................................................................................ 74
19 Function block Assignment of d.h.w. ............................................................. 75
19.1 Operating line ................................................................................................ 75
19.2 Assignment of d.h.w. heating ........................................................................ 75
20 Function block LPB parameters .................................................................... 76
20.1 Operating lines .............................................................................................. 76
20.2 LPB parameters............................................................................................. 76
Basic documentation RVD240
Contents
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CE1P2384en
27.05.2004