Siemens RVA47.320 User Manual page 10

Operation
D.h.w.
Use in extensive
systems
Logging
10/166
Siemens Building Technologies
HVAC Products
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Temperature adjustment with the setpoint knob
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7-day or 24-hour program for the heating circuit and d.h.w. heating
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Automatic button for efficient operation throughout the year
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D.h.w. button
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Manual operation at the touch of a button
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Output and input tests to aid commissioning and functional checks
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Straightforward selection of operating mode via buttons
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Change of operating mode via a remote switch (via contact H1)
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Heat generation lock or minimum demand for heat with the remote switch (via
contact H1)
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Service connection facility for local parameter settings and data logging
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D.h.w. heating with charging pump or via BMU with diverting valve
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D.h.w. control with temperature sensor or control thermostat
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Selectable priority for d.h.w. heating
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Selectable d.h.w. heating program
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Adjustable boost of the d.h.w. charging temperature
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Reduced setpoint of the d.h.w. temperature
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Protection against discharging of d.h.w.
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Automatic d.h.w. push
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Legionella function
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Communication via the Local Process Bus (LPB)
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Communicating via point-to-point interface (PPS)
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Controllers of other manufacture can deliver their heat demand signal by closing
potential-free contact H1
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Controllers of other manufacture can deliver their analog heat demand by using DC
0...10 V signals
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Input for cascade flow temperature sensor
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Input for cascade return temperature sensor
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Integrity of system architecture with all RVA... controllers
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Can be extended to include 40 heating circuits (with central bus power supply)
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Optional remote supervision
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Error messages (own faults, faults of LPB devices, faults of PPS devices)
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Logging the individual BMU operating hours
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Logging the number of device operating hours
Basic Documentation RVA47.320
Summary
CE1P2379E
15.07.2002