“Secretor” tile hidden inspection access door is designed for access to various engineering communications (meters, faucets, technical niches, pipes, etc.) in the walls of premises and outdoors (under the covering). It is suitable for facing with ceramic tiles up to 20 mm thick, ceramic granite up to 16 mm thick, mosaic, HPL panels up to 20 mm thick, and materials of similar weight.
The access door consists of a 20x40x1.2 mm steel profile frame and an entrance with a 20x20x1.2 mm profile frame, on which a 10 mm thick KNAUF gypsum-fiber supersheet (GFS) is fixed. Profiles for “Secretor” hidden access doors are made mainly from electro-welded carbon cold-rolled black steel, which is treated with phosphates and covered with polyester powder paint to ensure its anti-corrosion. Welds are made by the MIG method according to the DIN EN ISO 5817 international standard.
The access door is opened by pressing HEFELE Mini-Latch locks at 110°. The frontal opening, when pressed, protects the facing material from chipping. The rotation of the entrance is ensured by the DoorHolder two-joint hinge, which is strengthened between the hinges by a solid steel pipe with a diameter of 15 mm. The total depth of the structure is 55 mm plus 15 mm lock protrusion of 70 mm.
For all sizes of this model, an up/down hinge adjustment mechanism is provided from -3 to +3 mm.
The minimum size of the structure with one entrance is 200x200 mm (150x150 mm without hinges), the maximum size is 700Lx1700H mm. For larger dimensions, a design with two entrances is used, the maximum size with the horizontal placement of the entrance is 1200Lx1700H mm (two entrances of 600Lx1700H mm without a lintel in the middle), with the vertical placement of the entrance - 700Lx2500H mm (two entrances of 700Lx1250H mm without a lintel in the middle).
To correctly select the size of the tile inspection access door, you need to measure the exact size of the tile and the size of the niche (mounting opening). We recommend ordering the access door of the same size as one or more tile sections or smaller.
Important!!! It is allowed to protrude the tile beyond the dimensions of the access door frame on the hinge fastening side by a maximum of 20 mm and 50 mm on all other sides.
To select the size of the access door to line it with mosaic, it is necessary to measure the dimensions of one fragment and add the thickness of the seam; after that, calculate how many fragments will fit in the area of the mounting opening/niche, taking into account the thickness of the seams.
Important!!! Be sure to inform the manager before ordering that the access door will be lined with mosaic.
The access door entrance opens from left to right or from right to left only. The depth of the mounting opening/niche for installing the access door must be at least 70 mm in the area where the access door locks are placed.
Important!!! Please note that the useful/light/free space after installing the access door will be smaller than the overall size of the access door due to the location of the hinges and the thickness of the profile. For a design with one entrance, horizontally the space is smaller by 90 mm + 20 mm lock protrusion = 110 mm, vertically - by 40 mm.
Access doors can be installed in the niches of vertical walls and partitions made of brick, concrete or sheet materials such as plasterboard.
Important!!! The standard version does not include fastening elements or openings.
Preparation of the opening.
If the access door is installed in a plasterboard wall, we recommend installing a CD profile frame around the perimeter of the opening, or a black steel pipe for large sizes. There is no need to install an additional profile on the sides in a concrete or brick wall. The access door must be secured on four sides.
Fixing the access door in the opening.
Install the access door in the mounting opening/niche in one plane with the wall surface. Secure the access door with self-tapping screws or self-tapping screws with dowels. Additionally, fix the access door frame with wooden wedges. Make sure that the access door is installed without distortion of the frame and in one plane with the surface of the wall. To increase tightness, fill the holes between the frame of the access door and the wall with mounting foam.
Facing.
Apply facing material to the gypsum fiber of the access door entrance according to the instructions for use. The access door can be faced both before and after the finishing of the walls.
Adjustment of the entrance.
It is possible to lower or raise the entrance in range from +3 mm to -3 mm. To do this, use a wrench to turn the nuts on the hinge adjustment mechanism up or down.
Storage and operation conditions.
Warning.
Please note that to make it possible to press the access door entrance, there should be a space of 4 mm deep under the edges of the tiles that protrude beyond the dimensions of the access door.
It is forbidden to open the access door entrance if all the Mini-Latch locks did not work when pressed: this may damage plastic latches. Therefore, we recommend to press the access door entrance in the middle when opening, so that the locks work from all sides.
Do not leave children unsupervised when the access door is open, as it is a heavy structure with sharp metal protrusions, so carelessness in its handling can lead to serious injury and bodily harm. Be cautious!
