27Connecting To GasThe cooker must be installed by connection to rigidpipework, which should not be less than 15 mm diameter.Connection is made to the 15 mm compression fittinglocated just below the hotplate level on the rear left handside of the cooker.1. Mark off approximate position on wall for gas supply tocooker (See Specification).2. Isolate the gas supply and connect pipework as requiredup to the position marked.3. Check for gas tightness after connecting the gas supply.4. Make final gas connection to the cooker (15 mmcompression) into the combined gas cock/pressure testfitting (See Fig. 11.6).5. Check for gas tightness after connecting the gas supply.Pressure TestingThe pressure test point is situated at the rear left hand side ofthe appliance just below hotplate level. (Fig. 11.6).1. Remove screw from pressure test nipple. Fit the pressuregauge onto the pressure test nipple.2. Turn the gas cock to the ON position.3. Place one of the burner heads and burner cap intoposition on the burner body. Push in and turn theappropriate control knob anti-clockwise to full-onposition, and light the burner with a match.4. For Natural Gas appliance, the pressure should benominal 20mbar (8 inches water gauge).5. For LPG appliance (propane) the pressure should benominal 37mbar (14.8 inches water gauge).6. Turn off the tap, turn off gas cock, disconnect thepressure gauge and refit pressure test screw to pressuretest nipple.7. Turn the gas cock back to the ON position.8. Check for gas tightness.Fig. 11.6DESN 516858DESN 513513Fig. 11.7BURNER CAPRETAININGLUGSFig. 11.8DESN 513898