Siemens RVA63.242 - Page 11

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Siemens Building Technologies Basic Documentation RVA63.242, RVA53.242 CE1P2373E
Landis & Staefa Division Summary 26.03.2001
• Frost protection for the house or building, the plant, d.h.w., the heating circuit, and
the boiler
• Protection for the pump and the mixing valve through periodic control (pump and
valve kick)
• Adjustable minimum and maximum limitation of flow temperature
• Protection against overtemperatures in the pump heating circuit
• Two 7-day heating programs
− 7-day heating program no. 1 for heating circuit 1
− 7-day heating program no. 2, selectable for heating circuit 2, or the d.h.w.
circulating pump
• 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 H-contact
• 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
• D.h.w. heating: with solar heat
• D.h.w. circulating pump
• Electrical immersion heater
• 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 via DC 0…10 signal
• 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 RVA53.242
Operation
D.h.w.
Use in extensive
systems
Logging