62• Step 2: Press firmly the door on the gas fireplace andtightly screw the wing nuts at the top of the door.(Figure8.3.2.b)• Step 3: Tightly screw the wingnuts at bottom of the door andclose the access door.8.4 INSTALLATIONAND REMOVAL OF SIDE AND BACK WINDOW FRAME8.4.1 INSTALLATION AND REMOVAL OF SIDE WINDOW FRAMESInstallation of side window frame:• Start by inserting the tabs of the windowframe in the opening located at the bottomof the appliance (Figure 8.4.1.Detail B)• Tilt the top of the window frame and slightlylift it (without removing the bottom tabsfrom their slots) to positioning the hook(Figure 8.4.1 Detail A) in place.• Push down to secure it in placeRemoval of side window frame:• Raise vertically to disengage the hook(Figure 8.4.1 Detail A).• Pull outward the appliance• Disengage the bottom tabs. (Figure 8.4.1 Detail B) Figure 8.4.1Figure 8.3.2.bFigure 8.3.2.c