Harman Stove Company PB 105 manual Cleaning Steps

Maintenance

Heat Exchanger Cleanout Rod Handles

Firebox Door

Heat Exchanger Tube

Secondary Ash

Chamber Access Plate

Fines Cleanout Cover

Firebox Wall

Cleaning This cleaning should be done after each ton of pellets

used. The frequency of this cleaning will be directly related to the quality and the ash content of the pel- lets being used. Keep in mind that the cleaner the heat exchanger surface is kept, the higher the heat transfer efficiency will be.

Due to it’s ease of restarting it is recommended that the boiler be OFF and COOL before cleaning.

Start by actuating the (3) heat exchanger cleanout rods by pulling and pushing these rods vigorously several times. This action will remove any fly ash built up on the heat exchanger tubes. This can also be done at any time during the operation of the boiler to maintain higher ef- ficiencies. Make sure that these rods are pushed in when cleaning is completed.

Cleaning Steps

-Open the hopper swing plate to access burnpot and also the firebox. With a wisp brush, wire brush, stiff bristled paint brush or a soot vac, clean the firebox walls and any fly ash that has accumulated on the ledges of the burnpot, or burnpot opening. At this time you can scrape and clean the burnpot and fines cleanout area.

-Open firebox door and vacuum ash from ledges and ash deflector. You can also clean the firebox door viewing glass using a typical glass cleaner and soft cloth.

Ash Door

-Open the ash door and remove the ash pan. Dispose of any ash that has accumulated in the ash pan as well as any fly ash from within the ash pan area.

-Remove the (4) thumbscrews on the secondary ash chamber access plate and remove it to access the secondary ash chamber. Remove all fly ash from this area. This process should be done as needed.

-Inspect all sealing gaskets to ensure a proper seal and re-install all components removed for cleaning.

CAUTION: Cleanout of the heat exchanger, flue pipe, chimney, and combustion blower fan housing, is especially important at the end of the heating season to minimize corrosion during the summer months, caused by accumulated ash.

NOTE: To minimize the amount of stress placed on the hopper swing plate hinges, opening of the hopper swing plate should be done with the least amount of fuel in the hopper as possible.

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