Fire transoms: types, requirements, application

We install, maintain and repair electric drives for opening windows of all types. Our company’s specialists have extensive experience and are able to work at heights, including using mountaineering equipment.

• PVC window repair
• Wooden window repair
• Aluminum window repair
• Replacement of double-glazed windows
• Mosquito net
• Replacing the seal
• Repair of PVC doors

Peculiarities

Automatic devices consist of an electric window drive itself, powered by electricity, and a system that controls them.

Depending on the installation method, modifications are fixed to slopes and frames. Mounting on walls, roofs and windowsills is possible.

The technology is as follows. When voltage is applied to the motor, the drive pushes the valve with a rod using a transmission mechanism. The reverse actions occur in the same order, after switching - the transom is retracted back, drawn by the movable rod.

The actions of the electrical structure are different in retracting and pushing out the moving element. It is based on converting engine torque into direct movement of the bar. The differences lie in the power and dimensions of the equipment.

Why is a smoke removal system necessary?

At first glance, it may seem that it is enough to equip a building with modern fire alarm and fire extinguishing systems to ensure the safety of people. In reality, such systems are not enough.

The main cause of death during a fire is not fire, but smoke and carbon monoxide. By providing even the most primitive smoke removal through windows, it is possible to increase the period of time sufficient for successful evacuation from a burning building.

Smoke control systems perform the following tasks:

• Localizes smoke and carbon monoxide in one room.
• Prevents the spread of smoke and toxic substances.
• Help clear escape routes.
• Remove combustion products from the room.
• Help create favorable working conditions for firefighters.

Types

There are 4 types of automatic window opening devices.

1. Stock
2. Chain.
3. Rack and pinion.
4. Lever.

The parameters needed are determined by the size and weight of the sash: the heavier the moving part, the more powerful the equipment.

Chain

Model of an electric chain drive for a window, in which the rotational force of the motor is converted into pulling or pushing energy. The actions take place using a drum with a chain wound on it. When opening, the main part of the mechanism straightens and gains rigidity, performing the work of the rod.

Characteristics

Spindle

The technology for swinging the sash is based on the principle of screw jacks. The rod, with a large thread cut on it, is screwed in and released in reverse mode when the engine rotates.

Characteristics:

Rack and pinion

For heavy and large structures, rack and pinion drives for windows are used. The role of the rod in the model is performed by a gear rack, to which a small gear transmits the pushing force and reverse actions.

Characteristics:

Lever, or scissors

The second name is transom. Used for frames with vertical opening sashes.

Drives tuned by professionals ensure extended service life of the fittings. Opening and closing occurs smoothly with minimal load on the mechanism.

Equipment for remote opening of transoms

Manufacturers offer the following options for remote transom opening mechanisms:

• Manual opening. This option uses a flexible rod up to 700 mm long. The person pulls it and sets the drive in motion, which gently opens the window. The product is designed for a load of up to 60 kg, which prevents spontaneous opening under the influence of a draft or strong wind.
• Automatic opening. In this embodiment, the drive has an electric motor that is activated by command from a button or switch. The window opens silently and softly.

Such automatic mechanisms can be used as elements of a smoke removal system

indoors in case of fire detection. The solution is suitable for ventilating large shopping areas and centers automatically. In this case, data from installed temperature and humidity sensors is used.

General pros and cons

The main advantage of using these elements is convenience. To activate one or another electric window, one button press of the remote control is required. New generation devices distribute the impact of loads on the fittings and allow extended service life.

Automatic devices are complemented by sensors that respond to changing weather conditions. In cases when a sudden gust of rain begins, a strong gusty wind rises, the mechanism closes the doors without the knowledge of the owner. An excellent option for installing roof windows, with electric drive

Electric drives can be connected to a common security system. When smoke appears, window units with transoms can open automatically.

pros

1. The mechanisms work efficiently - with smoothness and precision, which increases the duration of use of fittings and locking devices.
2. If there is a power outage, it is possible to switch the product to manual mode. Opening and closing transoms are done manually.
3. Equipment operating on 24 V voltage prevents the possibility of electric shock to a person. Possibility of use in places with high humidity (swimming pools, greenhouses). Fixed on an aluminum profile.
4. Large frames are equipped with window drives that can be grouped together for automatic use. In this case, they are located at the edges of the valves.

Window blocks placed in the roof are tilted and difficult to open without the use of technology.

Minuses

1. Elements of the device stand out and do not correspond to the overall design of the room.
2. In case of an emergency or power failure, opening the doors for ventilation is done manually.
3. In such situations, the drive is disconnected from the opening frame.
4. The cost of the equipment is high and the use of batteries to turn on emergency power.

The equipment is capable of regulating lighting and microclimatic conditions of the room. Pairs with the fire alarm system.

Installing automated window opening is worth the cost and expectations. There are many things you can do to spend your energy while enjoying the use of electric drives.

What are manual transom openers?

The common distinguishing feature of all devices of this type is their compact design. It is necessary not only from an aesthetic point of view. During installation, the components of manual openers must be placed in a limited space and not extend beyond the window profiles. Mechanical devices for controlling transoms consist of several components:

• scissors with a holder - tear off, close and hold the active sash;
• corner switch - designed to transfer force from a vertical lever to a horizontal rail;
• sash hook – element for fixing scissors;
• rod guide – transmits force from the handle to the locking mechanism;
• lever;
• decorative elements - cover the working mechanisms and provide the aesthetic appeal of the device.

For transoms with increased width and weight, sets of additional scissors are provided. They are connected in series to each other by means of guide rods. That is, the command about the handles in this case is transmitted from one scissors to others, due to which they synchronously open and close the active sash.

For arched windows with radius transoms, manual drives are equipped with flexible rods instead of corner drives. They follow the contours of the rounded sashes and transmit the force from the lever to the scissors. For trapezoidal windows, the drives are additionally equipped with tape corner switches.

Openers for folding transoms are supplemented with special latches that ensure safety. They do not allow the sash to tilt further than it was intended for installation. In fact, the latch acts as a fuse in cases where something happens to the scissors. Another similar window protection is necessary when cleaning double-glazed windows when the scissors are disconnected.

We are ready to offer

• replacement of PVC windows;
• repair of aluminum windows;
• replacing a fixed sash with a hinged or hinged one;
• Shuko window repair;
• adjustment and maintenance of window mechanisms;
• insulation of plastic windows, replacement of sealing and sealing materials (window seals);
• repair, replacement of fittings: handles, combs, hinges and much more;
• production and installation of mosquito nets;
• replacement of window sills and slopes;
• correction of the geometry of plastic (PVC) windows (we eliminate curvature);
• modernization, replacement, restoration, repair of plastic sashes: fixed, rotary, tilt-and-turn.

How to organize control of sashes in hard-to-reach places

Not all apartments and houses have forced ventilation systems with air recovery; in most cases, air exchange is carried out through ventilation valves in window units and ventilation. But in a situation with windows located in hard-to-reach places: in the attic roof, on the ceiling in a greenhouse or winter garden, under the ceiling in a swimming pool, it is difficult to approach and open the sash. One solution is to manually control the window using a special accessory that can be purchased from the window manufacturer. The telescopic rod comes complete with an adapter that is fixed directly to the sash. But even a telescopic handle is not always a “panacea”, and the weather can turn bad unexpectedly when there is simply no one to close the sash. And the cost of accessories will add significantly to the window budget, but will not eliminate the need for personal control.

Electric drive installation prices

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* Prices are indicative, do not constitute a public offer and are specified during ordering and measurement.

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