A504J ver. 4
1
Adjustment lever
2
Adjustment rod
3
Body
4
Combustion head
To open the burner:
1. Switch off power to the burner from the control switch.
2. Close the gas supply from the gas shut-off valve.
3. Detach the oil hose or hoses. Clean any oil dripping from the oil line with an oil-
absorbent wipe or similar.
4. Detach any electrical connections that might get in the way or damaged.
5. Open the hinged flange locking screw.
6. The burner can now be swung open from the hinged joint.
7. When closing the burner, perform the steps in reverse order.
Detaching the burner from the boiler
Follow lifting instructions when lifting the burner.
Before reinstalling the burner to the boiler, check that the insulating
material around the combustion head is undamaged. Replace if
necessary.
It is not advised to detach the burner unless absolutely necessary.
Check that gas lines are leak-proof before putting the burner back into
service.
To detach the burner:
1. Switch off power to the burner from the control switch.
2. Close the gas supply from the gas shut-off valve.
3. Disconnect any external electrical connections and connections that might get in the
way or damaged. See the electrical diagrams supplied with the burner.
92 (111)
M4219 2305EN
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