AERCO KC Series Equipped with C-More Controller for Massachusetts Only - Manual (Page 52)

MAINTENANCE
6-8
6. Remove the grounding terminal from the burner by loosening the upper screw and sliding the
connector from the grounding rod, (See Fig. 6.10).
7. Using a 7/16” socket or open end wrench, remove the four 1/4”-20 nuts on the gas inlet pipe flange at
the burner, (See Fig. 6.11).
8. Using two 9/16” wrenches, remove the 3/8"-16 hex nuts and bolts on the gas inlet pipe flange at the
air/fuel valve, (see Fig. 6.11).
Figure 6.10
Grounding Terminal Location
9. Loosen the hose clamp at the air/fuel valve outlet and slide the clamp back towards the burner, (see
Fig. 6.11).
10. Using a 1/2” socket wrench remove six 5/16-18 hex nuts supporting the burner, (see Fig. 6.11).
Figure 6.11
Burner Disassembly Diagram
11. Lower the burner while sliding the air hose off the air/fuel valve. Remove the burner through the rear
of the unit.
12. Disconnect the exhaust temperature sensor by unscrewing it from the exhaust manifold, (See Fig.
6.12).