18
OPERATION-RELATED RISKS AND WARNINGS
Information about risks concerning operation
In a burn back situation, the fire has spread from the burner to the burner auger. Preventive
measures:
•
The firebox of the boiler must constantly have sufficient negative pressure, even during
combustion
•
The automatic extinguishing systems must always be kept in operating condition
•
This risk can be minimised in design by making the burner auger sufficiently long for the
safety systems to have time to trip in a burn back situation
•
A short (< 1,000 mm) burner auger requires a fire-resistant fan-wheel lift for permanent
burn back protection.
•
Fill the fuel tank in good time before the fuel runs out, so that the airflow cannot be sent
off in the wrong direction.
•
This solid fuel heating unit always generates heat, even when it is in inactive mode.
•
Do not keep the unit running, if there is insufficient need for heat.
•
A risky situation develops when the unit is kept running when it is under-loaded:
these
risks include burn back, corrosion of the boiler and reduced efficiency.
•
Before you open the boiler hatches or begin servicing the boiler, switch off the automatic
sweeping!
•
Use hearing protection!
•
Do not open the boiler hatches during a power failure. Danger of carbon monoxide explo-
sion!
•
Check whether there is a healthy flame in the burner before opening the hatches. If not, air
the boiler by raising the revolutions of the flue gas extractor for about two minutes prior to
opening the hatches.
Injuries caused by power transmission or fuel stoker moving parts
Preventive measures:
•
Always keep the covers of mechanical moving parts in place during operation.
•
Always turn the power off at the mains before carrying out servicing on the equipment.
•
Do not open the fuel tank when the equipment is running.
•
Safety switches must be installed in motors, pumps and fans. PLEASE NOTE! EMC
safety switches must be used in frequency converter-controlled motors!
Exposure to harmful dust
Preventive measures:
•
Do not use wood chip that has gone mouldy.
•
Re-fill the tank in good time before the fuel runs out
•
Use a breathing mask.
WARNINGS!
• Do not enter an unventilated fuel stoker. The enclosed space can be oxygen-free and so highly
dangerous. Do not work alone in the fuel stoker.
• BEWARE OF THE HOT BURNER SURFACES! The burner is insulated, but certain steel parts are
connected to the burner flange and so may be hot.
• THE SAFETY SWITCH MUST BE LOCKED OPEN DURING MAINTENANCE WORK!!
• THE EQUIPMENT MUST NOT BE USED UNTIL IT HAS BEEN FULLY INSTALLED, THE SAFETY
EQUIPMENT HAS BEEN TESTED AND CERTIFIED AS FUNCTIONAL, AND THE OPERATOR HAS
BEEN TRAINED IN ITS USE AND UNDERSTANDS HOW TO OPERATE IT CORRECTLY.
• THE EMERGENCY STOP BUTTON DOES NOT STOP THE FLUE GAS EXTRACTOR IN ARIMATIC
AUTOMATIC SYSTEMS
• NEVER INSERT YOUR HANDS INTO THE HOPPER HATCH – THE HOPPER’S LIMIT SWITCH DOES
NOT STOP THE BURNER AUGER IN ARIMATIC AUTOMATIC SYSTEMS
Summary of Contents for Multijet 1000
Page 1: ...INSTALLATION OPERATION AND MAINTENANCE Multijet 500 1500 ...
Page 15: ...15 ...
Page 25: ...25 HYDRAULIC DIAGRAM ...
Page 38: ...38 DECLARATION OF COMFORMITY ...
Page 40: ...OY ARITERM AB PL 59 FI 43101 SAARIJÄRVI FINLAND STAMP STÄMPEL ...
Page 42: ...42 NOTES ...
Page 43: ...43 NOTES ...
