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A.O. Smith 120 through 250 Series User Manual

Page 41

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Instruction manual BFC

41

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10. Check whether there is a burner pressure regulator (7) attached to the top

of the gas control, or simply a blank plate (8).

Note
In the event of the supply pressure for a gas category being the same as the

burner pressure

(3.4.3 "Gas data")

, the gas control must be fitted with a

blanking plate with a cork gasket. A burner pressure that deviates with respect
to the supply pressure requires a burner pressure regulator with rubber gasket
to be used. Each conversion kit contains all the necessary components.

11. If the blank plate or burner pressure regulator need to be replaced:

-

Unscrew the connector (9) from the gas control.

-

If necessary, remove the blank plate or burner pressure regulator (7).

-

If necessary, fit the blank plate or burner pressure regulator supplied
with the conversion kit.

-

Fit the gas control's connector (9).

12. Fit the connector (1) of the hot surface igniter and flame probe to the

controller.

13. Fit the 3-part gas coupling (2).
14. Check the burner pressure and supply pressure

(3.11 "Checking the supply

pressure and burner pressure")

.

15. Replace the cover.
16. Remove the sticker showing the new gas category from the conversion kit,

and attach it below the appliance's rating plate. This clearly indicates that the
appliance may no longer be run on the gas for which it was originally
supplied.