Operating Instructions and Installation Instructions

ULTRAMAX PB 65 - 120
40 L290 ©MHS Boilers 13/12/2010
16.0 Cleaning
16.1 Disassembly of Burner
Remove electrical plug-on HT and Ignition caps. Remove earth lead.
Loosen bolts (1) at fan unit (2).
Loosen mounting bolts (3) at burner unit (4).
Remove burner unit completely from heat exchanger.
16.2 Cleaning of Burner and Fan
Perform visual inspection of burner (4) and fan (2). Any dirt intrusion from the air supply are typically
blown and burnt through the burner under normal equipment use. In case of more severe dirt
accumulations, such as construction dust, a careful cleaning of the metal screen (5) must be
performed using a vacuum cleaner or blown out using a compressed air.
The surrounding seals (6) of the burner plate and the ceramic fibre seal (7) must be checked for
damages and must be replaced if necessary.
Check adjustment of electrodes (8).