1.1 Introduction......................................................................................................................................... 324

1.2 Control panel ...................................................................................................................................... 324

1.3 Connection to the power supply, switching on and off ....................................................................... 327

1.4 Adjustments........................................................................................................................................ 329

2 Installation ............................................................................................................................ 338

2.1 General Instructions ........................................................................................................................... 338

2.2 Place of installation ............................................................................................................................ 338

2.3 Plumbing connections ........................................................................................................................ 338

2.4 Gas connection .................................................................................................................................. 340

2.5 Electrical connections......................................................................................................................... 340

2.6 Fume ducts......................................................................................................................................... 345

2.7 Condensate drain connection............................................................................................................. 359

3 Service and maintenance.................................................................................................... 360

3.1 Adjustments........................................................................................................................................ 360

3.2 Commissioning ................................................................................................................................... 366

3.3 Maintenance ....................................................................................................................................... 366

3.4 Troubleshooting.................................................................................................................................. 374

4 Technical data and characteristics .................................................................................... 379

4.1 Dimensions and connections ............................................................................................................. 379

4.2 General view ...................................................................................................................................... 380

4.3 Hydraulic circuit .................................................................................................................................. 380

4.4 Technical data table ........................................................................................................................... 381

4.5 Diagrams ............................................................................................................................................ 383

4.6 Wiring diagram ................................................................................................................................... 384

323