8 HARGASSNER Heating technology for Biomass A 4952 Weng OÖ Tel.: +43/7723/5274-0 Fax: +43/7723/5274-5 office@hargassner.at
II Safety regulations
2 Remaining risks
The following residual risks must be given special consideration when the boiler
is operated properly and in accordance with its intended purpose:
D A N G E R
Burns from hot surfaces or boiler components
• Switch off the boiler and let it cool down before carrying out any maintenance or ser-
vicing work
• Do not grasp into the boiler during operation.
• Wear heat resistant gloves.
The ash in the ash box does save heat.
• Put ash in closed, not-flammable vessels only.
Do not empty hot ash into dustbin
Scalds from sprinkling, hot water
• Check hoses, lines and connections periodically for leakages, wear and tear or any
other damage!
• Rectify damages immediately.
• Before performing any maintenance work on the water circulation system, depres-
surise the boiler.
• Check, if all valves are in correct position.
D A N G E R
Dust explosion due to electro-static charging in the fuel storage room
• Pay attention to proper grounding of the pellets transportation tubes
• No motors in the fuel storage room (acc. to country-specific regulations)
Except agricultural buildings
• No other source of ignition (e.g. light) in the storage room
• No electrical equipment (e.g. light switch) in the storage room
• No welding works in dusty environment
D A N G E R
Burns from explosive combustion of residual gases (CO) in the combus-
tion chamber
• Open the maintenance door carefully.
Slightly in the beginning.
Keep your body and face away from the maintenance door.
• Do not open the maintenance doorduring or straight after a power blackout.
The risk of deflagration increases significantly after uncontrolled conditions.
(e.g. power loss)
• Do not open the maintenance door during heating operation.
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