7
OPERATING AND MAINTENANCE PROCEDURES
The Arimax step grate boiler is easy to use. The system’s automatic control directs the combusti-
on process by feeding in additional fuel and combustion air if required. The default values of the
automation system are set during the initial start-up.
Fuel
A step grate boiler is best suited to high-quality wood chip. Moisture level 20-40%, size of chip
approx. 40 x 40 mm. Fuel with a high proportion of ash and low melting point should be avoi-
ded. Contact your supplier if you intend to use mixed fuel.
Initial start-up
The mechanics and electronics of the system should be tested before lighting a fire. Testing
should be carried out on all moving parts, motors, fans, burner automation system, safety equip-
ment and alarms.
•
the operation and direction of rotation of the burner augers
•
the operation and direction of rotation of the stoker auger
•
the oil quantity in the hydraulic unit
•
conveyor stoker operation
•
the operation and direction of rotation of the combustion air fans
•
the operation and direction of rotation of the flue gas extractor
•
the operation and direction of rotation of the ash augers (optional)
•
the operation of the grate shaker (optional)
Check the operation of the installed safety equipment!
Check the operation of the alarm chain!
Check that the boiler contains water and that the pumps are operating (operation and direction of
flow)!
Fuel stoker
Fill the fuel on top of the pushers. PLEASE NOTE! Remember to test the operation of the
conveyor before filling the stoker with fuel!
