Page 18 - Bosch Hot Water Boilers

18 | Hot water boilers

Design

For decades our three-pass patent has formed the design enables their integration into an extremely
basis – as with the steam technology – for the out- compact pressure vessel. The floors are anchored
standing and ongoing success of this series, which is rigidly by the large continuous flame tube, and they
still unsurpassed today. The two smoke tube bundles are connected to the boiler shell by means of the
(2nd and 3rd pass) are positioned next to the flame cleverly devised use of corner anchors for even load
tube (1st pass) and all of them are connected by a distribution. In contrast to outdated designs with
fully wetback reversing chamber. This asymmetric stud bolts, there is greater robustness and durability.

Associated boiler house components

 Water treatment module WTM
 Flue gas heat exchanger ECO 1
 Flue gas heat exchanger ECO 6 for
condensing use
 Supply/Return flow adapter piece SP/RP
 Return flow temperature safeguard RTS
 Gas regulation module GRM
 Oil circulation module OCM
 Oil supply module OSM
 System control SCO

Oil circulation module OCM

For further information please see our brochure 'Boiler house components'.