Siemens RVL481 Basic Documentation page 14

14/118
Siemens
Building Technologies
• 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".
Heating and D.h.w. Controller RVL481
2 Use
CE1P2541en
20.05.2008