DUPLEXbase PS 3500
DUPLEXbase PS 3500 is designed for the energy efficient, comfort ventilation of schools,restaurants, sports halls, shops, and offices as the unit has a powerful air delivery with low energy consumption and exceptionally high thermal efficiency. With a range of control options including Internet and BMS compatibility for "On Demand" ventilation the unit also incorporates an automatic, 100% summer by-pass to isolate the heat recovery function during the hotter months.
Unique to DUPLEXbase PS Range is the ability to position the unit on the floor or in a ceiling-suspended configuration, indoors or floor-standing outdoors (accessories required). This versatile design also allows the unit to be installed as either a left or right-hand version. The front door enables easy access to all components. Inlet and outlet ports are rectangular. The unit has separate doors which allow for an easy filter change.
The casing thickness of 30 mm, is made of: – Steel sheet with aluzinc coating AZ 185 (corrosion class C4 according to EN ISO 12944-2) and a thickness of 0.8 mm – Polyisocyanurates (PIR) 30mm – Heat transfer coefficient =0.024W/mK Housing properties according to DIN EN 1886: – Mechanical stability: D1 – Housing leakage: L2 – Thermal insulation: T2 – Thermal bridge class: TB2 Building material class according to DIN EN 13501: B-s2-d0 Condensate tray with integrated stainless steel tray.
This provides exceptional flexibility for designers in the specification phase and gives contractors the opportunity to locate the unit in the optimum position.
Mechanical ventilation with heat recovery is an important component in creating a healthier living and working environment while contributing to the overall reduction of a building’s carbon emissions whilst increasing energy savings through the reduction of heating costs.
- Extracts up to 3500 m3/h (0.97 m3/s) at 300 Pa
- Excellent heat recovery efficiency over 90%
- Compact design and high flexibility in unit positioning
- Passivhaus Institute certification pending
- 2 year warranty*
- Offices and shops
- Schools and nurseries
- Sport halls
- Large plastic cross-counter flow heat exchanger with high efficiency over 90%
- Energy-saving, maintenance-free EC fans with low SFP and constant air flow volume control
- Compact unit - universally usable as horizontal or ceiling mounted, outside air intake right or left
- Easy maintenance through large access doors where filters, heat exchanger and fans can be easily removed
- Automatic, temperature controlled summer bypass, where the heat exchanger is covered 100%
- Frost protection via reduction of air flow volume of the supply air fan
- Supply air filter ePM1 55% (F7) and exhaust air filter ePM10 50% (M5) as standard. Filter monitoring via differential pressure. - ISO 16890 compliant
- Electronic 10-step digital controller with LCD display
- User control via internet connection
- Optional sensors (humidity, air quality, CO2) are available for on demand ventilation
- Shut-off dampers and flexible connectors are available as accessory
- Integrated electric pre-heater as an option
- Available with modular heating (optional electric or water heating coils)
- Available with modular cooling (optional DX or water cooling coils)
- Control system with a web server, as standard
- Constant flow control (optional)
- Constant pressure control (optional)
- Fulfils VDI 6022 hygiene standard
- H 1550mm x L 1950mm x W 735mm
- Spigot connection: 500mm x 500mm, 630x500
- Weight: 343 kg
* Excluding motors. The motor warranty is one year from the date of purchase.
UNIT SPECIFICATON - DUPLEXbase PS 3500
The mechanical ventilation with heat recovery unit shall be the DUPLEXbase PS 3500 as manufactured by Airflow, shall be sized as indicated on the drawings and shall be in accordance with the specification.
Compact central ventilation unit with heat recovery, certified by the German institute Passivhaus. The unit can be installed indoors on the floor or in a ceiling-suspended configuration, or floor-standing outdoors (accessories required). Moreover, the direction of air flow can be configured upon commissioning of the unit.
As standard, the unit is equipped with control system featuring bypass of heat recovery exchanger. All other accessories are delivered as loose along with the unit and installed on site.
The unit casing consists of frameless construction with sandwich panels, manufactured without thermal bridges. The sandwich-mounted panels create a 30mm thick casing, containing the following layers, from outside to inside: Outer layer from painted metal sheet. Colour: grey aluminium, (RAL 9007), thickness 0,8mm. Steel sheet with aluzinc coating AZ185 (corrosion class C4 according to EN ISO 12944-2). Polyisocyanurates (PIR) 30mm – Heat transfer coefficient=0.024W/mK. Inner layer made of galvanised metal sheet, thickness 0,8 mm.
Casing characteristics according to DIN EN 1886: - Mechanical stability: D1 - Casing leakage: L2 (Compliant with Approved Document Part L, Volume 2, Conservation of fuel and power, Buildings other than dwellings) - Thermal transmittance: T2 - Thermal bridges class: TB1
Class of building material according to DIN EN 13501: B-s1-d0 Condensate drain pan made of stainless steel (316L) In the condensate drain pan, there is one condensate drain, the necessary water trap is part of the delivery. 2-part service door on clips allow free access to all built-in components, heat recovery core, filter guide rails, fans etc. Each unit goes through a final thorough check and functionality test prior to being dispatched.
The unit shall be DUPLEXbase PS 3500 as manufactured by Airflow.
Delivery and placement in final installation position: The unit is delivered as one piece. It is not possible to divide the unit into more parts on site. To be positioned safely, the unit rests on 6 stand feet having the height of 150 mm. Dimensions of unit casing (excluding additional construction elements): Length: 1950 mm Height: 1550 mm Width: 735 mm Weight: 343 kg (incl. accessories)
- Extracts up to 3500 m3/h (0.97 m3/s) at 300 Pa
- Excellent heat recovery efficiency up to 93%
- Compact design and high flexibility in unit positioning
- Filter access doors for easy maintenance
- 2 year warranty* *Excluding motors. Motor warranty is one year from date of purchase.
In order to switch off the electrical power supply, e.g.. during service works, the service power switch is located next to the terminal board. Built-in sensors: Outdoor temperature sensor: ADS TEa Supply air temperature sensor: ADS TU1 Extracted air temperature sensor: ADS TEb Exhausted air temperature sensor: ADS TU2 Pressure switch of supply air filter: 0 - 500 Pa (on / off) Pressure switch of exhaust air filter: 0 - 500 Pa (on / off)
Outdoor air filter: Type of filter: ePM1 55% (F7) pleated cartridge Dimensions: 750x295x96 / 750x405x96 mm Number: 2 pcs
Extracted air filter: Type of filter: ePM10 50% (M5) pleated cartridge Dimensions: 750x295x96 / 750x405x96 mm Number: 2 pcs All filters are ISO 16890 compliant.
100% automatic summer bypass damper: A bypass damper is fitted in the ventilation unit as standard and designed to bypass the heat exchanger during hot seasons to avoid overheating in the ventilated premises. In addition, the damper can also be used for night pre-cooling. Moreover, the summer bypass can be used to prevent the plate heat exchanger from freezing (defrosting using bypass). If required, an option of intelligent cool recovery is also available. Frame made of zinc-coated metal (class 2, thickness 1 mm), flap with tight-closing Aluminium blinds.
Heat recovery feature: Wide-area counterflow plate heat exchanger from high-impact polystyrene (hPS) provides high efficiency of heat recovery and it is resistant against corrosion to a high extent. Furthermore, it is chemically stable when in contact with extracted air that is polluted from a wide range of applications. The exchanger is resistant against impurities, and it can be operated in the temperature range from -25°C to +80°C. It features class H1 according to DIN 13779.
Supply /Exhaust fan: EC-fan with stepless control with backward curved blades. - Voltage: 400 V/ 50 Hz - IP class: IP 54
CONTROL SYSTEM: DIGITAL CONTROL SYSTEM RD5
Main controller RD5 230V-EC / 230V-EC (1100, 1600, 2600) for control and communication with following built-in or external components: - Turning the device ON and OFF - Independent, stepless control of both fans - Integrated time plan with daily and weekly schedule - Selectable control based on supply air temperature / extracted air temperature / room temperature - Hysteresis of heating / cooling - Night precooling - Control of preheater (electrical, water) and/or heater (water, electrical, direct cooler in reverse mode) - Control of cooler (water, direct cooler) - Control of heat pump - Monitoring of filter clogging* - Antifreeze protection of hot water heating coil - Antifreeze protection of plate heat exchanger - Stepless control of bypass damper position, automatic control of heat recovery and cool recovery - Defrosting of heat exchanger using its bypass - Control of shut-off dampers - Stepless control based on demand for ventilation using 2 analogue inputs 0-10 V (e.g. sensor, converter of measured pressure or analogue signal) - Ventilation on constant flow* - 3 (4) programmable inputs (configurable delay of start or run-down) - 3 outputs (optional assignment) - Contact allowing external operation (ON/OFF) - Emergency STOP contact (e.g. fire sensor, smoke detector) - Multi-purpose output for error message (based on potential 24V / GND) - Possibility of connecting remote administration - Integrated data logging with the possibility of email messaging (various kinds of events can be sent to selected recipients) - simple software update via the internet *An accessory is required to enable this feature
Web server (password-protected) : Integrated web server enables control and monitoring of ventilation unit via LAN/internet. It makes reading of operational data easy and provides for comfortable control of the unit as all items are sorted in the menu (e.g. weekly schedule, temperature, mode of operation, etc.). Remote access via PC, notebook, tablet or smartphone.
ModBus interface is included as standard, it mediates communication with local supervising control system (BMS).
CP TOUCH CONTROLLER
The white CP touch controller, is intuitive, user-friendly with a touch screen and integrated room-temperature sensor, to be mounted on the wall. The user can set up and control all control system functions and display operational parameters of the unit, its alerts, and errors. An intuitive user interface, as well as a service menu protected by password, are available as standard with the controller. Users can access all commonly needed functions and select operational parameters; these can be chosen in manual/automatic mode.