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Siemens
Building Technologies
29.3.3 Electrical installation
• Local regulations for electrical installations must be complied with
• Only qualified staff may carry out electrical installations
• The cable lengths should be chosen such that there is sufficient space to open the
control panel door
• Cable tension relief must be ensured
• The cables of the measuring circuits carry extra-low voltage
• The cables from the controller to the regulating unit and the pump carry mains voltage
• The cables to the sensors must not be run parallel to mains carrying cable (e.g. power
supply for the pump) (protection class II EN 60730)
Heating and D.h.w. Controller RVL481
29 Handling
CE1P2541en
20.05.2008