Siemens RVA53.280 - Page 9

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Siemens Building Technologies Basic Dokumentation RVA63.280, RVA53.280 CE1P2374E
Landis & Staefa Division 19.04.2001
• Two 7-day heating programs
− 7-day heating program no. 1 for heating circuit 1
− 7-day heating program no. 2 for heating circuit 2
− Separate 7-day heating program for d.h.w. heating
• Temperature adjustment with the setpoint knob
• Automatic button for efficient operation throughout the year
• Chimney sweep function at the touch of a button
• Manual operation at the touch of a button
• Straightforward selection of operating mode via buttons
• Change of operating mode with contact H
• Output and input tests to assist commissioning and a functional test
• Service connection facility for local parameter settings and data logging
• D.h.w. heating with a charging pump or diverting valve
• D.h.w. heating with one or 2 sensors
• Reduced setpoint of d.h.w. temperature
• Selectable d.h.w. program
• Integrated legionella function
• Selectable priority for d.h.w. heating
• Adjustable boost of the d.h.w. charging temperature
• Automatic d.h.w. push
• D.h.w. demand with a sensor or thermostat
• Protection against discharging
• Communicating via Local Process Bus (LPB)
1)
• Communicating via point-to-point interface (PPS)
• Integrity of system architecture with all RVA... controllers
1)
• Can be extended to include up to 40 heating circuits (with central bus power supply)
1)
• Optional remote supervision
• Fault status signals and indications (locally, LPB and PPS)
1)
• Controllers of other manufacture can deliver their heat demand signal via potential-
free H-contact
• Controllers of other manufacture can deliver their heat demand in the form of DC
0…10 signals
• Analysis with service tool
1)
• Logging the number of burner hours run of stages 1 and 2
• Logging the number of burner starts of stages 1 and 2
• Logging the flue gas temperature
• Display of plant diagram no.
1
Not with RVA53.280
Operation
D.h.w.
Systems
1
Logging