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4.2.1 Open chamber overview........................................................................................................ 45
4.2.2 Sealed chamber overview ..................................................................................................... 46
4.2.3 Hydraulic diagram.................................................................................................................. 47
4.2.4 Hydraulic circuit ..................................................................................................................... 48
4.2.5 Hydraulic assembly ............................................................................................................... 49
4.2.6 By pass .................................................................................................................................. 49
4.2.7 New proportional flow meter.................................................................................................. 50
4.2.8 Hydraulic group maintenance................................................................................................ 51
4.2.9 Combustion group CF ........................................................................................................... 52
4.2.10 Combustion group FF............................................................................................................ 53
4.2.11 Combustion group maintenance............................................................................................ 54
5 BOILER CODES ...................................................................................................................................... 55
6 ACCESSORY CODES............................................................................................................................. 56
6.1 INSTALLATION ACCESSORIES ...................................................................................................... 56
6.2 TERMOREGOLATION INTERFACES .............................................................................................. 57
6.3 TERMOREGOLATION ACCESSORIES........................................................................................... 58
6.4 HYDRAULIC ACCESSORIES...........................................................................................................60
7 TECHNICAL DATA.................................................................................................................................. 62
7.1 OPEN-CHAMBER ............................................................................................................................. 62
7.2 SEALED-CHAMBER ......................................................................................................................... 63