5
1. Instructions for the user ..............................................8
1.1 Control panel .........................................................................................................................................8
1.2 Interpreting boiler status from display indications .................................................................................10
1.3 Boiler operation .....................................................................................................................................11
1.4 Boiler shut-down ....................................................................................................................................13
1.5 Maintenance .......................................................................................................................................... 15
1.6 Notes for the user .................................................................................................................................. 15
2. Technical features and dimensions ...................................... 16
2.1 Technical features .................................................................................................................................16
2.2 Dimensions ............................................................................................................................................18
2.3 Boiler layouts ......................................................................................................................................... 20
2.4 Operating data .......................................................................................................................................22
2.5 General characteristics ..........................................................................................................................22
3. Instructions for the installer ............................................24
3.1 Installation standards ............................................................................................................................24
3.2 Choosing where to install the boiler ......................................................................................................24
3.3 Positioning the boiler .............................................................................................................................24
3.4 Installing the boiler ................................................................................................................................26
3.5 Boiler room ventilation ........................................................................................................................... 26
3.6 Air intake and ue gas venting system ..................................................................................................27
3.7 Checking combustion eciency ............................................................................................................35
3.8 Connection to gas mains ....................................................................................................................... 36
3.9 Hydraulic connections ...........................................................................................................................36
3.10 Connection to electrical mains ..............................................................................................................37
3.11 Connection to ambient thermostat (optional) ........................................................................................37
3.12 Installation and operation with Open Therm Remote Control (optional) ...............................................38
3.13 TSP parameters ....................................................................................................................................39
3.14 Filling the system ...................................................................................................................................41
3.15 Starting up the boiler .............................................................................................................................42
3.16 Available head ....................................................................................................................................... 42
3.17 Wiring diagrams ....................................................................................................................................43
3.18 Adaptation to other gas types and burner adjustment...........................................................................45
4. Testing the boiler .................................................... 47
4.1 Preliminary checks ................................................................................................................................47
4.2 Switching on and switching o ..............................................................................................................47
5. Maintenance .......................................................48
5.1 Maintenance schedule ..........................................................................................................................48
5.2 Combustion analysis .............................................................................................................................49
6. Malfunctions, possible causes and solutions ..............................50
6.1 Troubleshooting .....................................................................................................................................50