TOR
3
cod. 3542B750 - Rev 05 - 07/2022
EN
1. USER INSTRUCTIONS .................................................................................................................................................5
1.1 Introduction ..............................................................................................................................................................5
1.2 Safety of goods and persons ...................................................................................................................................5
1.3 Control panel ...........................................................................................................................................................6
1.3.1 Buttons definition ........................................................................................................................................................................... 6
1.3.2 Display ........................................................................................................................................................................................... 7
1.4 Function ...................................................................................................................................................................7
1.4.1 Startup/shutdown .......................................................................................................................................................................... 7
1.4.2 Air Purging ..................................................................................................................................................................................... 7
1.4.3 Heating temperature adjustment ................................................................................................................................................... 7
1.4.4 Tank temperature adjustment ........................................................................................................................................................ 8
1.4.5 Central Heating modulation ........................................................................................................................................................... 8
1.4.6 Frost protection function ................................................................................................................................................................ 8
1.4.7 Operating the water pump based on anti-sticking function: ......................................................................................................... 8
1.4.8 Test mode ...................................................................................................................................................................................... 8
1.4.9 Outdoor temperature compensation .............................................................................................................................................. 9
1.4.10 Sterilization function ...................................................................................................................................................................... 9
1.5 Service menu .........................................................................................................................................................10
1.5.1 Parameters .................................................................................................................................................................................. 10
1.5.2 Fault Hystory ............................................................................................................................................................................... 11
1.5.3 Clear faults .................................................................................................................................................................................. 11
1.6 Filling of the installation ......................................................................................................................................... 11
2. INSTALLATION ..........................................................................................................................................................12
2.1 Operating conditions and installation position ......................................................................................................12
2.2 Boiler installation ....................................................................................................................................................13
2.3 Water pipes connection .........................................................................................................................................14
2.3.1 A. Water pipes mounting ............................................................................................................................................................. 14
2.3.2 B. Water quality in the hydraulic system ...................................................................................................................................... 14
2.3.3 C. Frost protection system, heat carrier, additive and anti-frost inhibitor .................................................................................... 14
2.4 Electrical installation .............................................................................................................................................14
3. SERVICE AND MAINTENANCE .................................................................................................................................16
3.1 Commissioning ......................................................................................................................................................16
3.1.1 Before starting the electric heating unit ....................................................................................................................................... 16
3.1.2 Starting the heating unit ............................................................................................................................................................. 16
3.1.3 Inspection during the period of operating ................................................................................................................................... 16
3.1.4 Shutdown ................................................................................................................................................................................... 16
3.2 Maintenance .........................................................................................................................................................16
3.3 Repairs .................................................................................................................................................................17
3.3.1 Seasonal inspection of electric heating unit ................................................................................................................................ 17
3.4 Troubleshooting ....................................................................................................................................................18
3.4.1 Diagnostic .................................................................................................................................................................................... 18
4. TECHNICAL DATA AND CHARACTERISTICS ..........................................................................................................19
4.1 Dimensions and connections ................................................................................................................................. 19
4.2 General assembly drawing and main part ............................................................................................................20
4.3 Hydraulic circuit .....................................................................................................................................................21
4.4 Curve Graph ..........................................................................................................................................................22
4.5 Technical parameters .............................................................................................................................................23
4.6 Wiring diagram .......................................................................................................................................................25
4.6.1 Wiring diagrams for models 6, 9 and 12 ...................................................................................................................................... 25
4.6.2 Wiring diagrams for models 18 and 24 ........................................................................................................................................ 26
4.7 power supply connection .......................................................................................................................................27
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