Cleaning and maintenance Maintenance (expert)
Carefully clean the impeller with a soft brush (not a
wire brush) or compressed air to prevent imbalance.
Replace the seal.
Fig. 2-59: Cleaning the impeller, replacing the seal
Lubricate the screws with heat-resistant lubricant and
re-attach the draught fan to the boiler. Tighten the nuts
alternately and evenly. Plug the power supply back into
the draught fan.
2.6.3 Cleaning the heat exchanger
Remove the cover on the top
Remove the cover from the top of the boiler.
Fig. 2-60: Cover
Removing the heat exchanger cover
Remove the insulation laid over the heat exchanger
cover.
Fig. 2-61: Insulation
Loosen the nuts and remove the heat exchanger
cover.
Fig. 2-62: Heat exchanger cover
To Next Page
