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Siemens Building Technologies Basic Documentation RVL471 CE1P2524E
HVAC Products 2 Use 23.10.2002
• Third 7-day switching program
• Input of 8 holiday periods per year
• Automatic summer- / wintertime changeover
• Display of parameters, actual values, operating state and error messages
• Communication with other units via LPB
• Remote operation via room unit and external switches
• Service functions
• Frost protection for the plant, the boiler and the house or building
• Minimum or maximum limitation of the return temperature
• DRT limitation
• Minimum and maximum limitation of the flow temperature
• Maximum limitation of the room temperature
• Periodic pump run
• Pump overrun
• Maximum limitation of the rate of setpoint increase
• Flow alarm
• Legionella function
• Manual d.h.w. charging
For the preprogrammed heating and d.h.w. heating circuits and their possible combina-
tions, refer to section 3.2 ”Plant types”.
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