Siemens RVD240 Basic Documentation page 9

District heating and domestic hot water controller
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Siemens Building Technologies
HVAC Products
25.2
Sensor test .................................................................................................... 87
25.3
Setpoint test................................................................................................... 87
25.4
Relay test....................................................................................................... 88
25.5
Display of the pump speed ............................................................................ 88
25.6
Display of the digital inputs............................................................................ 88
25.7
Limitations ..................................................................................................... 89
25.8
Software version............................................................................................ 90
26
26.1
Operating lines .............................................................................................. 91
26.2
Maximum limitation of the primary return temperature .................................. 91
26.2.1
General.......................................................................................................... 91
26.2.2
Maximum limitation in heating mode ............................................................. 92
26.2.3
Maximum limitation in d.h.w. mode ............................................................... 92
26.3
26.4
26.4.1
Mode of operation.......................................................................................... 94
26.4.2
Purpose ......................................................................................................... 94
26.5
Integral action time of the limitation functions................................................ 94
27
Function block Various functions................................................................... 95
27.1
Operating lines .............................................................................................. 95
27.2
Limitation function at contact H5 ................................................................... 95
27.3
Suppression of hydraulic creep ..................................................................... 96
27.3.1
Mode of operation.......................................................................................... 96
27.3.2
Mode of operation.......................................................................................... 96
27.4
Raising the reduced room temperature setpoint ........................................... 96
28
Function block Operation locking functions ................................................... 98
28.1
Operating lines .............................................................................................. 98
28.2
Locking settings on the software side............................................................ 98
28.3
29
Combination with PPS devices...................................................................... 99
29.1
General.......................................................................................................... 99
29.2
Combination with room unit QAW50... .......................................................... 99
29.2.1
General.......................................................................................................... 99
29.2.2
Overriding the operating mode ...................................................................... 99
29.2.3
Knob for room temperature readjustments.................................................. 100
29.2.4
Controller with operation lock ...................................................................... 100
29.3
Combination with room unit QAW70 ........................................................... 100
29.3.1
General........................................................................................................ 100
29.3.2
Overriding the operating mode .................................................................... 101
29.3.3
Knob for readjusting the room temperature................................................. 101
29.3.4
Basic documentation RVD240
Contents
9/126
CE1P2384en
27.05.2004

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