Door Frame Installation
1. Door frame connections should be tight, flat, and without gaps; fasteners should be securely locked; door frame diagonals should be accurate, with a tolerance of ≤1 mm for lengths under 2 meters and ≤1.5 mm for lengths over 2 meters.
2. After installation, the door frame should be horizontal and vertical in all three dimensions, with a verticality tolerance of +2 mm and a horizontal straightness tolerance of +1 mm; the connection between the door frame and the wall should be secured with screws (at least 3 per meter); for door frames wider than 200 mm, additional fixing plates should be installed; gaps between the door frame and the wall should be sealed with double-sided expanding foam, applied evenly and cut neatly after drying.
Jet Casing Installation
1. Cable casing should be evenly glued and fixed to the door frame and wall. Cable casing joints should be flat, tight, and gapless. After installation, casings on the same side should be on the same plane; if the wall is uneven, the casing casing joints must be flat. Cable casing curvature tolerance is 1 mm. Gaps between the cable casing and the wall should be filled with sealant.
Door Installation
1. After installation, the door leaf should be flat and vertical, with the exposed surfaces of the door leaf and door frame flush. The door leaf should open and close smoothly without any abnormal noise.
2. The gap between the door frame and the door leaf should be 6 mm at the bottom and 2 mm on the other three sides. All gaps are allowed a tolerance of +0.5 mm.
3. When the door leaf is closed tightly, it should fit snugly with the sealing strip and not wobble.
Hardware
1. Door hinges should be vertical and flat. For flat-mouth hinges, corresponding grooves should be cut into the door leaf and door frame. The grooves should be standardized, the same size as the hinges, and have a tolerance of +0.5 mm on the three sides. After installation, they should be flat and seamless, and the hinges should open and close smoothly. Three-pronged hinges should be installed according to the mold, and the pins should be fully inserted. All hinge fixing screws should be installed, straight, and concealed within the hinge plane.
2. Door lock slots should be accurate and standardized, with dimensions consistent with the lock body and lock plate; door locks should be securely installed, unlocking smoothly without abnormal noise; all accessories should be complete, and all fixing screws should be fully installed and straight.
3. Door closers, door stoppers, handles, etc., should be installed in designated positions, securely, with all fixing screws fully installed and straight, and the accessories should function well after installation.
