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Night-time back cooling – energy-efficient air conditioning
… summer. The right window technology is crucial for automatically controlled night cooling. Reduced performance due to heat Rooms heat up quickly in summer – especially with large window fronts. © Exorbitart / GEZE GmbH Offices, schools and public buildings often become unbearably warm in summer. People, equipment and lighting are constantly emitting heat. In addition, warm solar rays enter rooms via large glass windows. People begin to lose concentration and their performance deteriorates. The building must be cooled so that people who are in the room feel comfortable and remain mentally fit, despite high outside temperatures. However, air conditioning systems significantly increase the level of investment, maintenance costs and energy consumption of a building. Office and administration buildings often need more energy to cool rooms in spring and summer than to heat them in autumn and winter. Mechanical ventilation systems are also energy-intensive and, due to their continuous operation, are true ’power guzzlers’. Night-time ventilation saves energy By comparison, controlled natural ventilation saves a considerable amount of energy. It uses the natural pressure differences between at least two openings (e.g. windows, doors) of a building to the outside for air exchange. Such a pressure gradient already exists in weak winds. Power-driven fans are therefore unnecessary. For night-time back cooling , automatically controlled windows direct the heat generated by solar radiation and internal sources to the outside during the night and cool, fresh air to the inside. The supplied fresh air ensures a pleasant indoor climate through pleasant temperature and good air quality. Cool night air as a natural cold source The cool night air acts as a natural source of cold - and this makes night-time back cooling not only sustainable and energy-efficient, but also natural and environmentally friendly. In new buildings, this building air conditioning is increasingly combined with thermal core activation. Pipes are laid in building masses, e.g. concrete ceilings. Water flows through these pipes as a heating or cooling medium. Ideally, this would eliminate the need for very energy-intensive air conditioning systems. Convenient automation through central control Automatic night-time back cooling: useful for public buildings © Jürgen Pollak / GEZE GmbH Automatic night-time back cooling is particularly suitable for public buildings, office buildings, sports facilities or schools. In these large buildings, energy-efficient ventilation, a healthy indoor climate and the monitoring of window conditions are central requirements. Modern window technology ensures optimum night-time back cooling. It ensures that entire window fronts or window groups are automatically controlled when no one is present. A central control unit ensures ventilation scenarios such as ventilation periods can be defined and easily changed. Night-time back cooling in modern building concepts Modern parallel-opening vent windows support night-time back cooling. Even with modern glass façades with so-called parallel-opening vent windows, automatic night-time back cooling is possible. Here, the window leaves open in parallel to the outside as a whole which means that the appearance of the glass façade is not impaired – for example by reflections from tilted windows. At the same time, the parallel opening of the window ensures optimum air exchange. Cool air can flow in from below at the same time as warm, stale air escapes upwards. Compared to tilted windows, parallel-opening vent windows achieve a much higher air exchange rate with the same opening width. ‘Smart Buildings’ through networking The automatic window control for night ventilation can be networked with the building control, which controls e.g. blinds, awnings and shutters as well as heating, air conditioning, lighting and alarm systems. If the building technology automated in this way reacts automatically to climatic influences and changes, it turns buildings into ‘ Smart Buildings ’. Intelligent control and window drives from GEZE The automatic window controls from GEZE enable natural night-time back cooling - regardless of whether they have to open small light or large heavy façade windows, roof windows or skylight domes. This is because the window drives can be controlled precisely and allow a variably adjustable opening width for each window. This enables individual ventilation concepts according to customer needs. Sensors ensure complete safety: presence detectors monitor the closing edges and prevent injuries due to automatic opening and closing. Wind and rain sensors give signals to close the windows and protect the building stock from damage. Via the IQ box KNX interface module, the window drives from GEZE's IQ windowdrive series can be connected to the KNX building bus. This means that all automated windows can be monitored and operated centrally. Requirements for automatic window-based night-time back cooling A moderate climate: the outside temperatures at night must be well below the temperatures in the building for a sufficient period of time. Good outdoor air quality: Few odours, pollutants, fine dust Protection against burglary: windows can be controlled separately in accessible areas such as the ground floor; protection by means of window guards or by special construction (parallel-opening vent windows) In heavy rain or wind: structural weather protection or automatic closing of opened windows Planning Installation Planning Installation Comprehensive support GEZE supports planning and invitation for tenders by means of project consultancy tender texts for architects CAD drawings ideas for improving building efficiency information on the use of modern façade structures Fast and straightforward project implementation GEZE supports installation companies and installers with a fast and uncomplicated project handling with the configuration software WinCalc
Natural ventilation for the Lindenbüel school building in Volketswil
… summer months, when ventilation is less efficient during the day. The windows open in the early hours of the morning to cool the room to the optimum temperature, without added personnel expenses. Sensors simultaneously check that there is no danger from weather conditions such as strong wind or rain and, if necessary, close the windows. Teachers and students benefit from an optimally temperature-controlled classroom even before lessons begin. Reduction of personnel and operating costs through automation Automating window operation significantly reduces the effort required for manual ventilation. This saves time and minimises the risk of operating errors, especially in large buildings with many rooms. Centrally controlled systems can ventilate entire wings of buildings simultaneously, making maintenance, control and opening processes more efficient. Neither teachers nor facility managers are responsible for opening and closing all windows in short periods of time, such as during breaks or early in the morning before school starts. This also ensures that no windows are left open unintentionally: their status can be viewed at any time, and any error messages – for example, in the case of blocked windows – are displayed automatically. Energy efficiency through demand-based ventilation Uncontrolled or excessive ventilation leads to energy losses – especially during the heating season. Electric window drives allow ventilation intervals to be precisely controlled and adjusted to actual requirements. In combination with heat recovery systems or night cooling concepts, heating and cooling costs can be significantly reduced. In addition, windows can be closed automatically if the outside temperature deviates too much, which prevents further energy loss. This keeps children from having to sit in freezing classrooms, especially in winter, and reduces avoidable heating costs. Greater security thanks to reliable window technology Electric window drives increase security . Windows can be reliably closed using central control units or timer schedules. At the same time, the windows can be secured. This allows the closing edges to be monitored with a laser scanner to prevent fingers from getting caught. The IQ box Safety safety module stops or reverses movement as soon as a foreign object is detected in the danger zone. Another advantage: the window drives can also be used for enhanced fire protection, e.g. as a smoke vent in the event of smoke. Safety is paramount, especially in educational institutions where vulnerable children are present. Inclusion and accessibility Thanks to the option of operating the windows via tablet, smartphone or PC, they can also be operated manually by people with disabilities or remotely. Finally, electric drives can be integrated into smart building technology – for sustainable school architecture that is fit for the future. Smart building automation: advantages of control via KNX Corridor IQ box KNX HS controllers integrated into the customer's electrical installation cabinet. © Lorenz Frey / GEZE GmbH When controlled via a KNX module, the window drive responds to commands such as "open" or "close". The KNX system, which is not installed in the drive itself, but on site – this is in a control cabinet in the Lindenbüel Volketswil school building, – is what makes the system intelligent. Controlling the window drives via an intelligent KNX module offers a wide range of intelligent and flexible control options that can be used as needed. Sensor-based automation Time and scene control Central control unit Integration into the building management system Logical connections Integration into security and fire protection systems Learn more about the KNX module Natural ventilation for the Lindenbüel school in Volketswil The chain drive responds to commands such as open or close. © Lorenz Frey / GEZE GmbH The successful pilot project marked the start of retrofitting all windows with the GEZE Slimchain. © Lorenz Frey / GEZE GmbH This range of advantages – creating the best possible indoor climate for working and learning with automated natural ventilation and night cooling, while saving resources and energy costs – was why the school chose the system. GEZE Switzerland Ltd. was chosen as the partner for the planning, products and implementation of the project: with the GEZE Slimchain chain drive, GEZE offered an ideal product for the requirements of this project. In combination with the IQ BOX KNX , they are connected to the KNX module and thus integrate seamlessly into the on-site control system. Modern building automation can be used to achieve optimal ventilation. Centrally controlled, the drives open and close the fanlights in the classrooms and corridor, contributing to a pleasant indoor climate. Convincing measurement results: from sample windows to comprehensive retrofitting As a first step, the client initially wanted to convert a single room. After extensive consultation, a sample window was equipped with the GEZE Slimchain chain drive and the IQ Windowdrive. Data was collected and compared over the course of one summer. Outstanding data from the pilot project then provided the basis for conversion of the entire school building. In the further course of the project, a total of 121 drives, as well as associated electrical components, were installed. This extensive work was carried out in two stages: first, some of the classrooms, doors and corridor windows were converted and put into operation. Additional classrooms were added in a further stage. Both installation and commissioning were carried out by GEZE Switzerland. To ensure trouble-free operation, thorough instructions were given to the technical service on site. The customer is delighted with the smooth implementation of the project and the high-quality product: Working with GEZE Switzerland AG, our customers enjoyed a comprehensive, worry-free package – from expert advice and sample windows, which delivered convincing measurement results over an entire summer, to professional installation and handover. Nathan Grob, Commercial Technical Advisor at GEZE Switzerland Renovation during ongoing operations: Possible thanks to optimal project planning Completing renovations while operations are ongoing should be considered not only in schools, but whenever a building can only be vacated for renovation at great expense. At the Swiss school, this was possible with some restrictions, and the main objective – to keep the school running – was achieved. To this end, one part of the building was cleared during each construction phase, while lessons continued in the other part. This meant that the extensive work was not limited to the short time frame of the summer holidays, but could also continue during normal school hours. Refurbishment and modernisation during ongoing operations with GEZE GEZE is happy to provide support for refurbishment during ongoing operations right from the start of project planning. This allows the best possible process to be organised for all parties involved – from the building operator and users to the trades involved in the renovation. Learn more about conversion and modernisation Lindenbüel School Building, Volketswil The Lindenbüel school building was completed in 1974 and is located in the centre of the village of Volketswil. 280 pupils are taught there by around 35 teachers in 14 classes. The school building serves as the upper school building for the secondary school. Related topics Topics | Energy efficiency | Ventilation technology | Ventilation Natural ventilation Fresh air from outside - an optimum and healthy indoor climate through a controlled exchange of air through windows activated by electrical motors. Read more Topics | Ventilation | Fanlight openers | Partitioning Fanlight openers Manual and automatic fanlight openers ensure the easy and reliable opening of fanlight windows, guaranteeing a constant supply of fresh air in the building. Read more Topics | Energy efficiency | Sustainability Energy efficiency in buildings Energy efficiency is of major significance for architects, planners and users. Because a large proportion of the total consumption of end-use energy costs is accounted for by buildings. GEZE provides energy-saving and sustainable solutions for door, window and safety technology. Read more
… Summer X Follow the installation instructions. LED or PE3 22 PE3 Set parameters for input/terminal PE2: à With DPS: e2 or e3 to 01 for MPS à With ST 220: “PE2 function” or “PE3 function” to “MPS” X Set parameters for output/terminal PA1 and PA2: à With DPS: Set a1 or a2 to … Keypad programme switch à TPS, AS 500, flush-mounted, mat. no. 113231 à TPS SCT, AS 500, flush-mounted, with key switch, without Euro profile half cylinder, mat. no. 113232 LEDs (1) for mode of operation display indicate a fault code when a fault has occurred (see fault messages keypad programme switch). LED (2) lights up with reduced opening width. à Modes of operation: à OFF, N a, ls , a U , D O , Summer/Winter à Operation of the programme switch can be blocked for unauthorised persons by using a key switch or assigning a password (see chapter … Display programme switch (DPS) with OFF switch à AS 500, DPS with OFF, flush-mounted, alpine white, mat. no. 151524 à AS 500, DPS with OFF and SCT, with Euro profile half cylinder, flush-mounted, alpine white, mat. no. 155810 à Modes of operation: OFF, N a, ls , a U , D O , Summer/Winter opening width Follow the installation instructions à A DPS cannot be connected if the PE2function is set to “MPS” (only display possible). … .2). With DCU1-2M-NT, the key switch must always be pressed for operation of the DPS. à Switching between summer/winter opening width: X Press the keys simultaneously. RS485 … 2 Display summer/winter (LED lights up for winter opening width) Hidden service button à A maximum of one keypad programme switch can be connected to the control together with a maximum of one display programme switch. The control can be configured using DPS. See Service menu, chapter … Summer unknown DCU_2M-NT Automatic summer opens … .4 Service menu ST 220 Mode of operation Designation Setting values Mode of operation OFF Night mode Exit only Automatic Hold open Summer Winter - Key Season Open doors Explanation OFF Night mode Exit only Automatic Hold open Summer Winter Current mode of operation is displayed and can be changed. If an MPS is connected, it is not possible to change the mode of operation using the ST 220. Full opening width Reduced opening width Door parameter Designation Setting values Number of leaves Close on one side Close centrally Unknown Slimdrive SC Slimdrive SF Slimdrive SL Slimdrive SL NT Slimdrive SL BO Slimdrive SL CO48 Slimdrive SLT Slimdrive SLV ECdrive ECdrive CO48 Powerdrive PL ECdrive BO TSA 360NT BO Powerdrive PL CO48 Slimdrive SL NT-CO48 ECdrive T2 ECdrive T2-CO48 000000000000 Drive type Product serial number Explanation Close on one side Close centrally Unknown Slimdrive SC Slimdrive SF Slimdrive SL Slimdrive SL NT – – Slimdrive SLT Slimdrive SLV ECdrive Powerdrive PL ECdrive T2 000000000000 12-digit serial number Current input position is marked with an asterisk. Select input position using or and confirm using . Then select number using or and confirm using . 55 Service menu Designation Automatic sliding doors Setting values Explanation Maintenance message after 0, … 150 N Summer hold-open time Winter hold-open time Hold-open time contact authorised Dyn. extension of hold-open time 00 01 … sec. as soon as the closing position has been reached. – – – Dynamic extension of hold-open time refers to the summer and winter hold-open times. If the door cannot close fully between 10 successive activations, the hold-open time is increased by one second, repeatedly if necessary. Once the door can close fully again, the configured hold-open time is used again. If the distance between the door leaves (single leaf: the distance between leaf and side panel) during closing is smaller than the reversing limit, the door does not reverse if it hits an obstacle. It stops at the obstacle. The reversing limit refers to one door leaf. For a 2-leaf door the reversing limit 06 corresponds to a gap of 12 mm between the two leaves. 57 Service menu Automatic sliding doors Input signals Safety sensors Designation SI1– terminal SIS1 current state SI1– terminal SIS1 type of contact SI1 – terminal SIS1 function SI2 – terminal SIS2 current state SI2 – terminal SIS2 contact type SI2 – terminal SIS2 function SI3 – terminal SIO1 current state SI3 – terminal SIO1 contact type SI3 – terminal SIO1 function SI4 – terminal SIO2 current state SI4 – terminal SIO2 contact type SI4 – terminal SIO2 function 58 Setting values Explanation Indication of state, contact type and function Not used Not used Normally closed Normally closed contact contact SIS rev SIS rev SIS and KI SIS and KI SIS and KA SIS and KA SIS slow SIS slow SIO stop SIO slow SIO slow SIO break-out Safety device … 10 s – Mode of operation switchover Designation Setting values NA current state Contact sensor inside Explanation Indication of state – and contact type Not used Not used Normally open contact Normally closed contact Indication of state and contact type Not used Not used Normally open Normally open contact contact Normally closed Normally closed contact contact Indication of state and contact type Not used Not used Normally open Normally open contact contact Normally closed Normally closed contact contact Indication of state and contact type Not used Normally open contact Normally closed contact Not used Normally open contact Normally closed contact Night mode; the mode of operation cannot be changed as long as this is active. – Exit only; the mode of operation cannot be changed as long as this is active. – Automatic; the mode of operation cannot be changed as long as this is active. – Hold open; the mode of operation cannot be changed as long as this is active. – 59 Service menu Configurable inputs Designation PE1 current status PE1 function Automatic sliding doors Setting values Explanation Indication of state and function Not used Not used OFF NO OFF OFF Summer NO Winter NO Sabotage NC Pharmacy NO P-KI activation NO P-KA activation NO Push button NO OHZ push button NO Reset push button NO Double push button NO WC control NO PE2 current state PE2 function NO Summer NO Winter NO Sabotage NC Pharmacy NO P-KI activation NO P-KA activation NO Push button NO OHZ push button NO Reset push button NO Double push button NO Summer Winter Sabotage Limited opening width MPS Mode of operation “off”; the mode of operation cannot be changed as long as this is active. With the DCU1-2M-NT, the door opens before it switches off. As long as this is active, the season cannot be changed. In NA active: Door does not open again until sabotage is inactive and mode of operation has been changed. In NA: first flank opens 10–15 cm and locks, second closes and locks. A mode of operation change via TPS, DPS or the mode of operation inputs NA, LS, AU, DO and OFF is not possible. Indication of state and function Emergency The door closes if this is active. lock Activation and safety sensors are inactive. Not used Not used P-KI activa- Only active in mode of operation LS MPS MPS tion and AU (like KI). OFF NO OFF NO P-KA acti- Only active in mode of operation AU Summer NO Summer NO vation (like KA). Winter NO Winter NO Push but- First edge opens the door, and next Sabotage NC Sabotage NC ton edge closes it. Pharmacy NO Pharmacy NO OHZ push First edge opens the door, and next Emergency lock 20k NO button edge closes it. If the hold-open time P-KI activation NO P-KI activation NO for mechanical contact expires while P-KA activation NO P-KA activation NO the door is open, the door closes automatically. Push button NO Push button NO OHZ push button NO OHZ push button NO KI2 If the contact type KI is configured as opener for DCU1-2M-NT, PE3 is Emergency stop 12k NC the second contact sensor input and Reset push button NO Reset push button NO cannot be configured freely. Double push button NO Double push button NO Manual unlocking NO Manual unlocking NO WC control NO Emergency stop 20k NC Stop NO NO Stop NC NC PE3 current state 60 Indication of state and function Reset push The control is rebooted. button Automatic sliding doors Service menu Configurable inputs Designation Setting values Explanation Not used Not used Double MPS MPS push butOFF NO OFF NO ton Summer NO Summer NO Manual Winter NO Winter NO unlocking Sabotage NC Sabotage NC Emergency Pharmacy NO Pharmacy NO stop 12k PE3 function reduced opening width Press 2×: full opening width The door leaves can be moved by hand. Function emergency stop button, normally closed contact with 12k terminating resistance P-KI activation NO Emergency Function emergency stop button, P-KA activation NO stop 20k normally closed contact with 20k terminating resistance Push button NO OHZ push button NO Stop NO Function stop, normally closed contact without terminating resistance Emergency lock 20k NO P-KI activation NO P-KA activation NO Push button NO OHZ push button NO Emergency stop 12k NC Reset push button NO Reset push button NO Stop NC Double push button NO Double push button NO WC control NO Emergency stop 20k NC Stop NO NO Stop NC NC KI2 NC Press 1×: Function stop, normally open contact without terminating resistor Output signals Configurable outputs Designation Setting values Explanation PA1 current state – Gong PA1 function Not used Gong Fault NO contact Fault normally closed contact Fault MPS Warn Motor gear unit brake Motor fan Locked closed Closed Not closed Open Off Night mode Exit only Automatic Hold open Light control Opens Does not open Maintenance due F-manual unlocking F-WC timeout Not used Gong Fault NO contact Fault normally closed contact Fault MPS Warn Motor fan Locked closed Closed Not closed Open Off Night mode Exit only Automatic Hold open Light control Maintenance due F-manual unlocking Fault Active if an SIS is activated in AU, LS or DO. Collective problem signal Fault MPS For activation of the LED on the MPS: à Collective problem signal à Maintenance message Warn Active if the door continues moving despite active safety device at reduced speed. Motor gear CO48 pre-setting with drive SL CO48 unit brake and ECdrive CO48. … 4 Scroll down Reduce value (Only with mat. no. 152524/ 155810) drive switched without function for service purposes (drive is not without voltage) – Change – Summer (full opening width) Winter (reduced opening width) Service button (1) Change mode of operation / service mode + simultaneously + simultaneously … 4 Service key Position unknown Illuminated for maintenance Display summer/winter (LED lights up for winter opening width) Scroll function In the Service menu, it is possible to scroll through the menu or value settings by pressing the or keys. … .2 Service menu DPS 1st menu Display OD Explanation Opening speed Closing speed Latching action open Latching action closed Summer hold-open time Winter hold-open time (reduced opening width) Hold-open time contact authorised Dynamic extension of the hold-open time Bo Acceleration U® Reduced profile fo Static force open fc Static force closed Uo Uc so sc Oh O® Os Setting values 03 04 … 13 14 21 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 20 21 23 24 25 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 21 Mode of operation OFF NO Summer NO Winter NO Sabotage NC Pharmacy NO P-KI activation NO P-KA activation NO Switch function NO Switch function, close after Os NO Reset push button NO Double push button NO WC control NO Not used MPS Mode of operation OFF NO Summer NO Winter NO Sabotage NC Pharmacy NO Emergency lock NO P-KI activation NO P-KA activation NO Switch function NO Switch function, close after Os NO Emergency stop 12k Reset push button NO Double push button NO Manual unlocking NO WC control NO Emergency stop 20k NC Stop NO NO Stop NC NC Not used MPS Mode of operation OFF NO Summer NO Winter NO Sabotage NC Pharmacy NO Emergency lock NO P-KI activation NO P-KA activation NO Switch function NO Switch function, close after Os NO Emergency stop 12k Reset push button NO Double push button NO WC control NO 23 Emergency stop 20k NC 24 Stop NO NO 25 Stop NC NC 68 Mode of operation OFF Summer Winter Sabotage Pharmacy P-KI activation P-KA activation Switch function Switch function, close after Os 13 Reset push button 14 Double push button NO NO NO NC NO NO NO NO NO NO NO 00 01 02 03 04 05 06 Not used MPS Mode of operation OFF Summer Winter Sabotage Pharmacy 08 09 10 11 P-KI activation P-KA activation Switch function Switch function, close after Os NO NO NO 13 Reset push button 14 Double push button 20 Manual unlocking NO NO NO 00 Not used 01 MPS 02 Mode of operation OFF 03 Summer 04 Winter 05 Sabotage 06 Pharmacy NO NO NO NC NO 08 09 10 11 NO NO NO NC NO NO P-KI activation P-KA activation Switch function Switch function; close after Os NO NO NO 13 Reset push button 14 Double push button NO NO NO 22 Contact sensor inside
Window solutions for modernisation under historical preservation requirements
… summer and winter, sound proofing and user and working comfort. Under historical preservation requirements, the external appearance could not be changed, not even by sun protection. The idea: One of the oldest and most proven window types, the casement window, was reinterpreted by the architects Dipl. Ing. Muus and Dipl. Ing. Wilde, who were in charge of the project. To solve these challenges, the architects worked closely with window manufacturer Sehlmann Fensterbau GmbH, glass manufacturer Semcoglas Holding GmbH and the window drive specialists from EMT and GEZE at an early stage of the project – true to the motto "Achieving more together". Commitment and open communication with everyone involved enabled us to recognise challenges at an early stage and develop solutions together. This close and very cooperative partnership helped ensure the project went smoothly. Architects Dipl.-Ing. Muus and Dipl.-Ing. Wilde, MUUS & WILDE Architektenpartnerschaft Hamburg The solution: modern double casement windows that comply with historical preservation requirements Dennis Bredahl from Semcoglas Holding GmbH optimised the thermal and sound proofing of the double casement windows with special solar control and thermal insulation glazing. © Jürgen Biniasch / GEZE GmbH A double casement window consists of two window elements arranged one behind the other and mounted on a common frame. The advantage of this historic window concept: The air space between the two window elements serves as thermal insulation and sound proofing, as the staggered opening of the windows means that sound has to pass through the space between them and is thus significantly attenuated once again, even during ventilation. Our modern casement window solution uses high-quality solar control glass on the outside and thermal insulation glass on the inside, which significantly improves the insulation value and sound proofing – also increasing user comfort in the buildings. Thanks to the double glazing, double casement windows already offer much higher thermal and sound proofing compared to conventional windows. These properties were significantly improved by the use of high-quality solar control glazing and thermal insulation glass as so-called neutral glass and a special coating (Semco Klimaglas). Dennis Bredahl, Semcoglas Holding GmbH Window manufacturers Jan and Lasse Sehlmann implemented customised solutions that combine historical preservation and user requirements. © Jürgen Biniasch / GEZE GmbH Pleasant indoor climate thanks to integrated shading The new double casement windows are equipped with an integrated shading system. This consists of automatic composite blinds with 35 mm wide slats that run between the two window frames. This solution makes it possible to keep the rooms cool during the day, while at the same time ensuring natural ventilation through the outer window. The blinds can be operated independently for added convenience. This reduces costs for air conditioners and the offices are naturally ventilated. Modern casement window at the Grindel tower blocks in Hamburg. © Jürgen Biniasch / GEZE GmbH Safety and ease of use thanks to modern window drives For the outer window leaves, GEZE Slimchain drives were installed as a system solution in combination with the Power lock locking drive , which enables simple operation via push buttons in the room. The inner leaves of the double casement windows can still be opened manually. The Power lock locking drive ensures that a reliable lock is guaranteed, especially on the higher storeys, and even under heavy wind loads. As only the outer windows are motorised, no additional protection is required for power-operated windows in accordance with the Machinery Directive 2006/42/EC. The opening drives were integrated into the window frame in a concealed location, and the supply lines were routed in the construction joint. A unique feature: With their very slim and discreet appearance, the Slimchain window drives integrate perfectly into the structure – so that strict historical protection requirements are met. This means the well-insulated double casement windows with integrated shade control are a modern, comfortable and energy-efficient solution that simultaneously respects the architectural character of the building and complies with the strict historical preservation requirements. The technical expertise and the rapid involvement of all parties in the planning process enabled us to develop customised solutions that meet both high historical preservation requirements and the needs of building users. Jan and Lasse Sehlmann, window fitters at Sehlmann Fensterbau GmbH Achieving our goal together: successful project planning and coordination GEZE was already in close contact with all project participants in the early planning phases, which enabled smooth discussions and effective collaboration. This early involvement of all parties made it possible to identify potential challenges at an early stage and develop solutions together. In addition, GEZE supported project coordination through continuous cooperation with the partner company EMT. Contact with the architect and building services was also maintained during the implementation phase. This ongoing collaboration ensured that all aspects of the project were seamlessly integrated and that the implementation went smoothly. Modern history: the listed Grindel tower blocks The Grindel tower blocks in Hamburg's Eimsbüttel district were the first residential tower blocks built in Germany after 1945. They were highly modern and comfortable flats when they were built in the post-war period, and remain so today – with central heating, hot and cold running water and lifts. In addition, the flats are bright and flooded with light thanks to their orientation and windows, while remaining pleasantly shaded in summer. Today, the ensemble of twelve high-rise buildings and a park is historically preserved. A tip for visitors to Hamburg: in the centre of the Grindel tower blocks is the Eimsbüttel district office, which has become a real tourist attraction with its historic paternoster lift The Grindel tower blocks in Hamburg's Eimsbüttel district were the first residential tower blocks built in Germany after 1945. © Jürgen Biniasch / GEZE GmbH These consist of two window elements arranged one behind the other and mounted on a common frame. © Jürgen Biniasch / GEZE GmbH Double casement windows were used as a customised window solution for the Grindel tower blocks. © Jürgen Biniasch / GEZE GmbH Comprehensive support throughout the entire project life cycle Our experts support you throughout the entire project life cycle – from planning and project coordination to the certified assembly and initial acceptance of GEZE systems and regular maintenance, through to retrofitting and dismantling. Please get in touch with us – we will find customised solutions for your project. Go to the contact form Products used Opening drives Slimchain Chain drive in an attractive design with numerous possible applications in 24 V version Go to product Locking drives Power lock Locking drive in combination with Slimchain, Powerchain or E 250 NT Go to product Related topics Hotels & restaurants | Historic buildings | References | Accessibility | Fire protection | Building refurbishment | Hygiene | safety Historical preservation meets modern design at the Hotel Richer de Belleval The magnificent Hotel and restaurant Richer de Belleval in the French city of Montpellier impresses with a deft combination of historical beauty and modern comfort. GEZE's door systems were used in the successful restoration project. Read more Sport/Culture | References | Accessibility | Building planning | ventilation | safety Smoke and heat extraction and ventilation systems in the OYM athletic centre Door and window systems from GEZE deliver peak performance in the OYM athletic centre in the fields of automated ventilation, fire protection, smoke and heat extraction and emergency exit protection. Read more
… Summer). Beachten Sie, dass der SPOTFINDER sich nach 45 Sekunden ohne IR-Erfassung deaktiviert. Zum Reaktivieren, einfach ausund wieder einschalten. D I Una volta acceso (ON), la LED verde si accende. Potete scegliere tra due posizioni: LED solo segnale o LED segnale e BUZZER (cicalino). Nota: lo SPOTFINDER si disattiva da solo dopo 45 secondi in caso di non rilevazione. Per riattivarlo, passate di nuovo da OFF in ON. LED and BUZZER 1/2 Example for ACTIV on sliding door UK F D I To position the safety curtains correctly, put the SPOTFINDER flat on the floor and against the door as shown above. Adjust the safety curtains until the ORANGE LED lights up and/or until the BUZZER beeps. Pour un positionnement correct des rideaux de sécurité, mettez le SPOTFINDER par terre et contre la porte comme ci-dessus. Ajustez les rideaux de sécurité jusqu'à ce que la LED ORANGE s'allume et/ou jusqu'au signal du BUZZER. Um die Lichtvorhänge korrekt zu positionieren, legen Sie den SPOTFINDER flach auf den Boden und gegen die Tür wie oben abgebildet. Bewegen Sie die Lichtvorhänge bis die ORANGE LED aufleuchtet und/oder bis der BUZZER-Ton ertönt. Per posizionare correttamente la tenda di sicurezza, mettere lo Spotfinder a terra e contro la porta come indicato. La regolazione della tenda di sicurezza sarà completata quando la LED ARANCIONE si accenderà e/o il cicalino suonerà. Replacing batteries ORANGE LED FLASHING ALKALINE AAA – LR03 Tips UK F D
… summer time rule, geographical position of the installation (required for astro mode), external imput or roller shutter specific features like blocking time or motor running time. If the basic product type of your mi.puck should be changed, e.g. it was defined to be a roller shutter control and in the future it should work as standard weekly time switch, a factory reset must be carried out via settings in the App. You can also delete the entry of the mi.puck in the remote overview “My devices”. 7
Retrofitting electric window drives: tips and information
… summer. This conserves resources and reduces costs. Fire protection : Integrated or networked functions such as a smoke and heat extraction system increase safety for people and buildings. The windows not only supply fresh air, but also ensure smoke and heat extraction in the event of an emergency. Increasing the value of the property: Retrofitting automated windows increases comfort and improves the energy efficiency of the building. Both factors help increase property value. Building users feel more comfortable overall when the indoor climate, air quality and temperature are right – and they don't have to adjust them manually. To make these issues even more tangible: What does retrofitting look like in practice? Slimchain chain drives for increased safety and energy efficiency. © Sigrid Rauchdobler / GEZE GmbH Schools are a good example, as many people remember stuffy school buildings from their childhood that were in need of renovation. Instead of replacing the entire façade, retrofitting windows is more practical and cost-effective. CO
… summer”) or … 4 (“selector switch winter”). àà ST220: Set the “PE1 function” or “PE2 function” to “selector switch summer” or “selector switch winter”. àà S1, S2: Set parameter 17 or 18 to value 03 for “selector switch summer” or value … Keypad programme switch (TPS) àà TPS, AS500, flush-mounted, mat. no. 113231 àà TPS SCT, AS500, flush-mounted, with key switch, without euro profile half cylinder, mat. no. 113232 àà Operating modes: OFF, NA, LS, AU, DO, Summer/Winter XX Follow the installation instructions. àà Accessories: àà Euro profile half cylinder, mat. no. 090176 àà Additional contact, mat. no. 024467 àà Surface-mounted cap, single, AS500, mat. no. 120503 àà Surface-mounted cap, double, AS500, mat. no. 128609 … ● ○ ○ ○ ● ○ Mode of operation OFF Night mode Exit only Automatic 1-leaf (AU Winter) Hold open Automatic 2-leaf (AU Summer) Service menu … .5 Movement parameters Designation Hold-open times Setting values 2-leaf (summer) 1-leaf (winter) Mechanical contact Close delay GF Dyn extension Explanation … s AU Z-> inactive K -> normally opened contact Not used Normally opened contact Normally closed contact analogue MPS DO Z-> inactive K -> normally opened contact Not used Normally opened contact Normally closed contact PE1 Z-> inactive K -> not used F -> not used Not used OFF NO Switchover summer NO Switchover winter NO Sabotage NC Closing position GF NO Explanation Display Input KB without function Display Input KI without function Display Input KA without function Display Input AU without function Display Input DO without function Display Input PE1 without function Switchover to OFF (normally opened contact) For the connection of a push button for the summer function. Only for switching from 1-leaf to 2-leaf opening, not for actually opening the door. For the connection of a push button for the winter function. Only for switching from 2-leaf to 1-leaf opening, not for actually opening the door. Permanently switched. If the contact is interrupted KB is not evaluated in the night mode of operation. All other functions remain the same. Closing position contact of the door leaf àà For 1-leaf Door àà For 1-leaf Door drive with manual passive leaf (door closer): Closing position contact of the active leaf àà For 2-leaf door: Active leaf contact to GF control, passive leaf contact to SF control TSA 160 NT Designation Service menu Setting values P-KI activation P-KA activation Switch function NO NO NO Switch function hold- NO open time (OHZ) PE2 Current state PE2 function Reset switch NO Double push button NO Stop normally opened contact Stop normally closed contact PS-NA PS-LS Closed position SF WC control 1-leaf opening OFF normally closed contact PE2 Z-> inactive K -> not used F -> not used Not used OFF Switchover summer NO Switchover winter NO Sabotage NC Explanation Additional contact sensor KI Additional contact sensor KA With 2-leaf assemblies the push button can be connected to the active leaf control or to the passive leaf control. When the push button is pressed once, the drive opens the door. When the push button is pressed again, the drive closes the door. If the push button is connected to the passive leaf control opening and closing when both door leaves are activated if the internal programme switch of the passive leaf control is set to AUT. With 2-leaf assemblies the push button can be connected to the active leaf control or to the passive leaf control. When the push button is pressed once, the drive opens the door and closes after the hold-open time has expired. When the push button is pressed again (within the hold-open time) the drive closes the door without waiting for the hold-open time to expire. If the push button is connected to the active leaf, the 1-leaf hold-open time is used for 1-leaf use and the 2-leaf hold-open time for 2-leaf use. For restarting the drive. Function as reset. Press … x: SF also opens For connection of a stop push button NC NO NO NO NO NC Night mode programme Exit only programme SF or door closer closed. with IO 420 Only on the active leaf (2-leaf drive) Switchover to OFF Display NO NO Input PE2 without function Switchover to OFF (normally opened contact) For the connection of a push button for the summer function. Only for switching from 1-leaf to 2-leaf opening, not for actually opening the door For the connection of a push button for the winter function. Only for switching from 2-leaf to 2-leaf opening, not for actually opening the door. Permanently switched. If the contact is interrupted KB is not evaluated in the night mode of operation. All other functions remain the same. 49 Service menu Designation TSA 160 NT Setting values Closing position GF NO Emergency lock 20kOhm NO P-KI activation P-KA activation Switch function NO NO NO Switch function hold- NO open time (OHZ) Stop … 56 ps ** ○ ● ○ ○ Automatic contact type NO Switchover to OFF (normally opened contact) Switchover Summer NO Switchover Winter NO Sabotage NO Closing position GF NO P-KI activation NO P-KA activation NO Switch function NO Switch function OHZ NO Not used Reset switch NO Double push button NO Stop normally opened not monitored contact NO Stop normally closed not monitored contact NC PS-NA NO PS-LS NO Closing position SF NO WC control NO with IO 420 1-leaf opening NO only on the active leaf (with 2-leaf drive) Off NC Switchover to OFF (electric strike) 00 Not used 02 Off 03 Switchover Summer NO 04 Switchover Winter NO 05 Sabotage NC 06 Closing position GF NO 07 08 Emergency locking 20kOhm P-KI activation NO NO 09 P-KA activation NO 10 Switch function NO 11 Switch function OHZ NO 12 Stop
Modern building with smart façades
… summer night. Sun protection also plays an important role for the energy balance of buildings and the well-being of the building user. Weather control panels can be used, for example, to control solar protection systems. Climate-active façades also improve the quality of indoor air: it is monitored with CO
Energy efficiency of buildings
… summer, lighting at night, quick means of transportation, operating machinery and equipment – it takes a lot of energy to live the way we do. However, the majority of our power supply comes from fossil fuels, and burning these fuels generates CO2 emissions. Today, we know that this is very likely a cause for the alarming pace at which climate change is advancing. Climate protection targets The following binding targets were established for Germany under the Federal Climate Protection Act (Bundes-Klimaschutzgesetz (KSG)) of 24/06/2021: Greenhouse gas reduction of 65 percent compared to 1990 levels by 2030 Greenhouse gas neutrality by 2045 Total energy needs and heat loss Thermal image of a façade: A lot of energy is being lost here! © shutterstock Building policy plays a key role in the building area in Germany's modern energy policy. Over a third of total final energy consumption is currently used up by buildings – for hot water, heating and cooling, ventilation and illumination. Often, a majority of heat indoors escapes out through the walls, windows, roofs, doors, or floors. Therefore, in the future, passive efficient houses and nearly zero energy buildings (abbreviated “NZEB”) will be used as the standard reference buildings across the EU. This is stipulated in the amended EU guidelines on overall building energy efficiency (“Energy Performance of Buildings Directive”, abbreviated EPBD). It will initially apply only to new buildings, but all buildings, including existing buildings and non-residential buildings, are supposed to be climate-neutral by 2045. On the one hand, it will be necessary to significantly reduce the energy needed for heating and cooling these zero emission buildings (abbreviated ZEB) during their construction and renovation. On the other, the percentage of renewable energy used to cover remaining needs must be significantly increased. High energy stipulations under building laws and regulations In the past, EU guidelines on overall building energy efficiency have been implemented in Germany through the Energy Savings Act (Energieeinsparungsgesetz (EnEG)), the Energy Savings Regulation (Energieeinsparungsverordnung (EnEV)) and the Renewable Energy Heating Act (Erneuerbare-Energien-Wärmegesetz (EEWärmeG)). As of