Adjusting The Low Settings - La Cornue Grand-Maman 90 Installation Manual

Cornuchef model: gm2,gp2,tm2,tp2

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IGNITION – ADJUSTMENTS

The injectors for gas oven are always replaced in the following sequence:

1- Screw the adjusting cone (2) and insert it into the mixing tube in order to free

sufficient space for unscrewing the injector.

2- Unscrew the injector (1) with a 7mm flat wrench.

3- Install the injector (1) corresponding to the new type of gas and tighten it.

4- Ignite the burner and adjust the air inlet (see the table opposite for the primary

air adjustment) by screwing or unscrewing the adjusting cone (2) until you obtain a

slightly blue flame showing no separation; separation of the flame is an indication that

there is too much air.

5- Then block the adjusting cone (2) with the blocking washer.

Once you have changed the injectors, it is a good idea to adjust the low settings for the

hob burners (see Section 4).

4. A

DJUSTING THE LOW SETTINGS

Only the low settings for the gas hob burners and the hotplate can be adjusted with the

following procedure:

1. Remove the control knobs by unscrewing the screw that keeps them in position;

2. Remove the cock cover by using a screwdriver as a lever: the cover is clipped on to the

hob;

3. Re-install the control knob of the burner that you want to adjust; ignite the burner, then

rotate the knob to "low" setting;

4. After removing the control knob again, rotate the split screw on the cock body with a

screwdriver, to the left to increase the flow rate, to the right to reduce it. Make sure that

the resulting flame at the lowest setting is sufficiently strong to heat the

thermocouple.

5. Re-install the knob to turn the burner off;

6. In case of gas change, it can be necessary to replace the reduced flow adjustment screw

(by-pass) by a different reference screw (see table page 26).

7. Re-install the cover and the control knobs by screwing the appropriate screws.

Once the appliance has been adapted to a different type of gas or to a pressure

other than those for which it was previously set, the new settings will have to be

indicated in place of the previous settings, and a new gas information label will

be supplied with the new injectors.

Any sealing will have to be replaced.

Installation Guide - "Cornuchef" Range

Injectors

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