15 Boiler return connection
16 Thermal discharge valve connection
17 Automatic drive for heat exchanger cleaning
18 Induced draught fan
19 Flue gas recirculation (optional)
20 Secondary air control with servo-motor drive
21 Primary air control with servo-motor drive
22 Automatic ignition
23 Flue gas recirculation air damper (optional)
General
1
Product overview, TX
Operating Instructions TX 200-250 | B1060217_en 7