Process information
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| Location | DE | ||
| Reference year | 2024 | ||
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| Use advice for data set | Scope: This document refers to the manufacture, transportation, installation, operation and disposal of the declared volume flow controllers (VRpro, DN100, comprising the components casing, electrical damper blade, measuring cross, drive and control components) for ventilation and air conditioning systems. It is also valid for the VRup volume flow controllers and the DRpro pressure controllers. The products are produced exclusively in Germany at the factory in Weener in which the production data from the year 2021/2022 was collected. System boundary: The system boundary of the EPD of the type "from the cradle to the grave" follows the modular structure in accordance with EN 15804. The eco-balance of the assessed products takes into account modules A, B, C and D: Product stage (A1–A3): Provision of raw materials and transportation by truck of the raw materials to the factory. Production expenses including packaging material. Treatment of non-metallic production waste. Metallic production waste reaches the end of the waste characteristic immediately after creation, and is exported according to module D. Construction stage (A4–A5): Module A4: Transportation by truck to the construction site (100 km). The transportation distance can be adjusted at building level as necessary (e.g. in case of actual transportation distance of 200 km: multiplication of the eco-balance values by a factor of 2). Module A5: Treatment of packaging. Resultant credits in module D as necessary. Power consumption for installation (use of hand-held power tools as necessary) was not taken into account. Use stage (B1–B5): No emissions are released during use of the product (B1). Servicing (B2) and repair (B3) or the replacement of individual components (B4) is not relevant during the assessed life span (maintenance-free). According to manufacturer information, the product does not need to be restored during the life span (B5). Modules B1 to B5 are therefore declared with a 0. Use stage – operation of the building (B6–B7): The required electrical energy for operation of the product with electric drive motor and the electrical energy for set point adjustments is declared in module B6. Disposal stage (C1–C4): Module C1: Manual demolition (unencumbered) Module C2: Transportation by truck for waste treatment (50 km). The transportation distance can be adjusted at building level as necessary (e.g. in case of actual transportation distance of 100 km: multiplication of the eco-balance values by a factor of 2). The end-of-waste status of motors is achieved after processing, i.e. separation of the material fractions contained. The expenses for processing were neglected in the product life cycle. Module C3: Thermal treatment of raw materials with calorific value. Module C4: Disposal of raw materials without calorific value. Credits and debits outside the system boundaries (D): Debits and credits from material recycling of metals (including processing) and credits for substituted thermal energy and power which have been exported from modules A1-A3, A5 and C3. | ||
| Technical purpose of product or process | Volume flow controllers for controlling constant and variable volume flows in ventilation and air conditioning systems and for shutting off ventilation ducts. Pressure controllers for controlling constant and variable pressures in ventilation and air conditioning systems and for shutting off ventilation ducts. Control can be performed using room and duct pressure. | ||
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| General comment on data set | VRpro volume flow controllers are maintenance-free electronic controllers for constant and variable volume flows in ventilation and air conditioning systems. They can be installed and operated in any mounting position in circular ventilation ducts for supply and exhaust air. The casing and control mechanism are made of galvanized sheet steel. The damper blade for volumetric flow control is centrally supported and equipped with a circumferential seal. The bearing axles are made of stainless steel and are guided in special bearing bushes. The measuring cross is made of aluminium. The control components comprise a controller with integrated static or dynamic sensor and an actuator with standard, quick or spring return. The controller with integrated sensor is mounted on an attachment console which can be tilted or offset manually in confined spaces. Control and electrical connection of the VRpro volume flow controller are analogue, by MP-Bus, BACnet or Modbus. All control components facilitate the operation modes constant and variably adjustable 0 – 10 V, 2 – 10 V. Overrides, parallel operation and sequential circuits are possible. Factory settings can be ordered. Modifications by the user can be made using a setting device, including in conjunction with a PC or using the integrated NFC interface with a smartphone. The volume flow controllers allow for high accuracies with an approximate fluctuation of only ± 5 % to ±20 % of the actual volume flow. Accordingly, the flow rates are held constant in the overall pressure range of 5 Pa to 1000 Pa. VRup volume flow controllers are maintenance-free electronic controllers for constant and variable volume flows in ventilation and air conditioning systems. They can be installed and operated in any mounting position in circular ventilation ducts for supply and exhaust air. The casing and control mechanism are made of galvanized sheet steel. The damper blade for volumetric flow control is centrally supported and equipped with a circumferential seal. The bearing axles are made of stainless steel and are guided in special bearing bushes. The measuring cross is made of aluminium. Five 24 V AC/DC actuators are available. - The AN actuator works exclusively with analogue control. - The MP actuator is suitable for analogue control using MP-Bus, and can be set using an NFC interface. - The KNX actuator works exclusively in KNX bus mode. - The MOD actuator can be activated by BACnet, Modbus, MP-Bus or is suitable for analogue control. Actuators which are suitable for analogue control can be used for the operating modes constant, variably adjustable 0–10 V, 2–10 V and 3-level. Overrides, parallel operation and sequential circuits are also possible. Factory settings can be ordered. Modifications by the user can be made using a setting device, including in conjunction with a PC. The volume flow controllers allow for a high accuracy with an approximate fluctuation of only ± 5 % to ±20 % of the actual volume flow. Accordingly, the flow rates are held constant in the overall pressure range of 5 Pa to 1000 Pa. DRpro pressure controllers are maintenance-free electronic controllers for constant and variable pressures in ventilation and air conditioning systems. They can be installed and operated in any mounting position in ventilation ducts for supply and exhaust air. Casing, console and control mechanism made of galvanized sheet steel. The same applies to the centrally supported damper blade with its circumferential seal. The axles are made of stainless steel and are supported in special bushings. The control components comprise a controller with integrated static or dynamic sensor and an actuator with standard, quick or spring return. The controller with integrated sensor is mounted on an attachment console which can be tilted or offset manually in confined spaces. Control and electrical connection of the DRpro pressure controller are analogue, by MP-Bus, BACnet or Modbus. All control components facilitate the operation modes constant and variably adjustable 0 – 10 V, 2 – 10 V. Overrides, parallel operation and sequential circuits are possible. Constant or variable set points which can be referenced as overpressure or negative pressure are specified. The differential pressure is measured. The positioning angle of the damper blade is then used for pressure control. Leak tightness classes 3 and 4 according to EN 1751 are achieved in the closed position. Factory settings can be ordered. Modifications by the user can be made using a setting device, including in conjunction with a PC or using the integrated NFC interface with a smartphone. DRpro pressure controllers facilitate high levels of accuracy with an approximate fluctuation of only ±5 % to ±10 % of the actual pressure. The sensor-related pressure ranges Pstart to Pnom and the pressures preset for ventilation ducts or rooms are held constant within a hysteresis. The aluminium measuring cross is only required for the optional volume flow measuring device which is available for retrofitting. Otherwise, the connections are closed. Refer to the respective manufacturers documents for further information, e.g. on externally certified VDI 6022 conformity. | ||
| Copyright | Yes | ||
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| Data set valid until | 2029 | ||
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| Technology description including background system | Production is performed at a single location in the factory in Weener. The necessary raw parts and semi-finished parts as well as auxiliary and operating materials are supplied by suppliers and enter into production. The production of semi-finished parts is performed in pre-fabrication with conventional production methods. Metal parts are punched and edged to shape. Cuts are optimised accordingly to prevent waste. Waste which is then still produced, is collected and, wherever possible, recycled by appropriate companies, or disposed of as domestic waste and incinerated. Lubricants are collected, treated and re-used in production as far as possible. Dusts and fumes are extracted and collected on-site. The parts from pre-fabrication are assembled in final assembly together with purchased parts to form the volume flow controllers, checked within the scope of quality assurance according to ISO 9001, packaged and dispatched. For high and continuous control accuracy, each volume flow controller is factory adjusted. Operation is subject to an energy management system. Technical data: The requirements according to the harmonised regulations for CE marking, for electromagnetic compatibility (EMC) in accordance with EU Directive 2014/30/EU and the requirements for performance rating according to EN 12589:2002-01, Ventilation for buildings - Air terminal units - Aerodynamic testing and rating of constant and variable rate terminal units and the associated requirements according to ISO 5135, ISO 3741, ISO 5167-1 and EN 1751 are met. Declared unit: The declaration refers to the manufacture of one VRpro volume flow controller DN100, including drive and electrical control unit. The declaration also applies to the DKpro pressure controller DN100. LCA scenarios and results tables for the VRup volume flow controller are listed in the public annex of the EPD. | ||
Modelling and validation
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Nomenclature compliance
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Quality compliance
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| Compliance |
Compliance system name
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Approval of overall compliance
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Nomenclature compliance
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Methodological compliance
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Review compliance
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Documentation compliance
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Quality compliance
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Administrative information
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| Time stamp (last saved) | 2024-01-02T00:00:00 |
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| Publication and ownership | |
| UUID | 2e6f7e1e-bd77-4451-ad7a-0c3d4952fd13 |
| Data set version | 00.06.000 |
| Registration authority | |
| Registration number | EPD-WIL-20230372-ICA1-DE |
| Owner of data set | |
| Copyright | Yes |
| License type | Free of charge for all users and uses |
| Access and use restrictions | None |
Environmental indicators
Indicators of life cycle