Fröling Lambdamat LM 1000, Operating Instructions Manual

Page: 45 / 64

Servicing the system | 5
B1300122_en | Operating instructions Lambdamat LM 800-1000 45
Cleaning the flue gas recirculation (FGR) duct
(Pos. D Ü "Periodic inspection and cleaning" [ } 42] )
r Remove the thermal insulation from the FGR duct
r
Dismantle the maintenance openings (A) on the FGR duct and on the FGR boxes (B)
r Check the FGR duct and clean using an ash vacuum, if necessary
Checking the heat exchanger
(Pos.E Ü "Periodic inspection and cleaning" [ } 42]
r Loosen the star-shaped knobs and open the reversing chamber door
r
Check the heat exchanger pipes and clean thoroughly using a brush, if necessary
NOTICE! If the boiler features an automatic compressed air cleaner (optional), the
cleaning interval increases accordingly, however the cleaning procedure set out
above must be carried out at least once a year.