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                                                            | Weight: | 48 kg | 
                                                                                                                            
                                                            | Description: | Type of heating boiler: electric, max. heat output: 21.78 kW, number of circuits: single-circuit, placement: wall-mounted, power supply type: three-phase, control: electronic, electric boiler operation principle | 
                                                                                
                                                                                        
                                                            | Peculiarities: | Air vent, built-in circulation pump, pressure gauge, safety valve, connector for external control, thermometer | 
                                                                                
                                                                                        
                                                            | Control: | Electronic | 
                                                                                                                            
                                                            | Dimensions WxHxD: | 615x852x332mm | 
                                                                                
                                                                                        
                                                            | Installation: | Wall-mounted | 
                                                                                
                                                                                        
                                                            | Efficiency: | 99 % | 
                                                                                
                                                                                        
                                                            | Mains voltage: | Three-phase | 
                                                                                
                                                                                        
                                                            | Thermal power: | 12 - 21.78 kW | 
                                                                                
                                                                                        
                                                            | Max. water pressure in the heating circuit: | 2.5 bar | 
                                                                                                                            
                                                            | Max. coolant temperature: | 90 °С | 
                                                                                                                            
                                                            | Max. thermal load: | 22.10 kW | 
                                                                                                                            
                                                            | Maximum current 3F: | 33 A | 
                                                                                                                            
                                                            | Rated current of the circuit breaker 3F: | 40 A | 
                                                                                                                            
                                                            | Power steps: | 4 | 
                                                                                
                                                                                        
                                                            | Heating circuit connection: | 1" | 
                                                                                
                                                                                        
                                                            | Number of circuits: | Single-loop | 
                                                                                                                            
                                                            | Type of heating boiler: | Electric, heater |