| 
                        
                                                                                                                            
                                                            | Weight: | 
                                                            18 kg
                             | 
                        
                                                                                                                            
                                                            | Equipment: | 
                                                            Display
                             | 
                        
                                                                                                                            
                                                            | Description: | 
                                                            Boiler type: electric, number of circuits: single circuit, max. thermal power: 21 kW, placement: wall-mounted, type of electrical network: three-phase, principle of operation of the electric boiler: heating element, control
                             | 
                        
                                                                                
                                                                                        
                                                            | Peculiarities: | 
                                                            Air vent, built-in circulation pump, pressure gauge
                             | 
                        
                                                                                
                                                                                        
                                                            | Control: | 
                                                            Electronic
                             | 
                        
                                                                                                                            
                                                            | Dimensions WxHxD: | 
                                                            380x660x180mm
                             | 
                        
                                                                                
                                                                                        
                                                            | Functions: | 
                                                            Overheating protection, manometer
                             | 
                        
                                                                                
                                                                                        
                                                            | Installation: | 
                                                            Wall-mounted
                             | 
                        
                                                                                
                                                                                        
                                                            | Mains voltage: | 
                                                            Three-phase
                             | 
                        
                                                                                
                                                                                        
                                                            | Protection: | 
                                                            Air vent
                             | 
                        
                                                                                
                                                                                        
                                                            | Built-in circulation pump: | 
                                                            There is
                             | 
                        
                                                                                                                            
                                                            | Max. water pressure in the heating circuit: | 
                                                            3 bar
                             | 
                        
                                                                                                                            
                                                            | Maximum current 3F: | 
                                                            31.90 A
                             | 
                        
                                                                                                                            
                                                            | Rated current of the circuit breaker 3F: | 
                                                            40 A
                             | 
                        
                                                                                                                            
                                                            | Power steps: | 
                                                            6
                             | 
                        
                                                                                                                            
                                                            | Heat carrier temperature: | 
                                                            20 - 85 °С
                             | 
                        
                                                                                
                                                                                        
                                                            | Built-in expansion tank: | 
                                                            No
                             | 
                        
                                                                                
                                                                                        
                                                            | Number of circuits: | 
                                                            Single-loop
                             | 
                        
                                                                                                                            
                                                            | Primary heat exchanger material: | 
                                                            Stainless steel
                             | 
                        
                                                                                                                            
                                                            | Type of heating boiler: | 
                                                            Electric, heater
                             | 
                        
                                                                                
                                                                                        
                                                            | Max. thermal power: | 
                                                            21 kW
                             |