Windis Free 350 – Air Curtain for Open-space Installation
Windis Free 350 is a water-heated air curtain designed for open-space installation. It is ideally suited for commercial premises, offices, schools, and daycare centers. The maximum installation height is 3.5 meters. Available in four widths: 1 m, 1.5 m, 2 m, and 2.5 m. The device features an integrated controller, which can also be overridden directly from the building automation system.
Performance
Integrated thermal energy measurement
Adjustable airflow impulse
High-efficiency EC fans
Quick Installation
Quick connectors for external sensors
Integrated heating valve
Features
Modbus TCP and BACnet IP interfaces
Inlet and outlet air temperature measurement
Air bubble detection in water circui
Heating circuit pressure monitoring
Built-in frost protection
Filter differential pressure measurement
Windis Free 350
Unit | Air flow (m3/h) |
Air inlet (°C) | Air outlet (°C) | Power (kW) | Water flow (l/s) | Water inlet (°C) | Water outlet (°C) |
Pressure drop (Kpa) |
Electric power (W) |
Sound pressure level (LpA) 10m2 Sabine |
Windis Free - 350 - 1000 | 1692 | 18 | 37,5 | 11,2 | 0,136 | 60 | 40 | 3,66 | 333 | 73,9 |
Windis Free - 350 - 1500 | 2433 | 18 | 39,65 | 17,89 | 0,217 | 60 | 40 | 11,21 | 502 | 76,1 |
Windis Free - 350 - 2000 | 3230 | 18 | 37,78 | 21,7 | 0,262 | 60 | 40 | 3,46 | 666 | 76,9 |
Windis Free - 350 - 2500 | 4473 | 18 | 38,26 | 30,78 | 0,372 | 60 | 40 | 7,52 | 665 | 77,2 |
Unit | Air flow (m3/h) |
Air inlet (°C) | Air outlet (°C) | Power (kW) | Water flow (l/s) |
Water inlet (°C) | Water outlet (°C) |
Pressure drop (Kpa) |
Electric power (W) |
Äänenpainetaso
(LpA) 10m2 Sabine |
Windis Free - 350 - 1000 | 1692 | 18 | 28 | 6,42 | 0,077 | 50 | 30 | 1,42 | 333 | 73,9 |
Windis Free - 350 - 1500 | 2433 | 18 | 31 | 11,17 | 0,135 | 50 | 30 | 5,03 | 502 | 76,1 |
Windis Free - 350 - 2000 | 3230 | 18 | 29 | 12,44 | 0,15 | 50 | 30 | 1,34 | 666 | 76,9 |
Windis Free - 350 - 2500 | 4473 | 18 | 30 | 18,7 | 0,226 | 50 | 30 | 3,22 | 665 | 77,2 |
Project-specific dimensioning
Windis Ceil 350 – Recessed Ceiling Air Curtain
Windis Ceil 350 is a water-heated air curtain designed for recessed ceiling installation. It is ideally suited for commercial premises, offices, schools, and daycare centers. The maximum installation height is 3.5 meters. Available in four widths: 1 m, 1.5 m, 2 m, and 2.5 m. The device features an integrated controller, which can also be overridden directly from the building automation system.
Performance
Integrated thermal energy measurement
Adjustable airflow impulse
High-efficiency EC fans
Quick Installation
Quick connectors for external sensors
Integrated heating valve
Features
Modbus TCP and BACnet IP interfaces
Inlet and outlet air temperature measurement
Air bubble detection in water circui
Heating circuit pressure monitoring
Built-in frost protection
Filter differential pressure measurement
Windis Ceil 350
Unit | Air flow (m3/h) |
Air inlet (°C) | Air outlet (°C) | Power (kW) | Water flow (l/s) | Water inlet (°C) | Water outlet (°C) |
Pressure drop (Kpa) |
Electric power (W) |
Sound pressure level (LpA) 10m2 Sabine |
Windis Ceil - 350 - 1000 | 1912 | 18 | 36,69 | 12,14 | 0,147 | 60 | 40 | 4,23 | 333 | 73,9 |
Windis Ceil - 350 - 1500 | 2750 | 18 | 38,81 | 19,44 | 0,235 | 60 | 40 | 13,01 | 502 | 76,1 |
Windis Ceil - 350 - 2000 | 3650 | 18 | 36,99 | 23,54 | 0,286 | 60 | 40 | 4 | 666 | 76,9 |
Windis Ceil - 350 - 2500 | 5055 | 18 | 37,44 | 33,36 | 0,404 | 60 | 40 | 8,69 | 665 | 77,2 |
Unit | Air flow (m3/h) |
Air inlet (°C) | Air outlet (°C) | Power (kW) | Water flow (l/s) | Water inlet (°C) | Water outlet (°C) |
Pressure drop (Kpa) |
Electric power (W) |
Sound pressure level (LpA) 10m2 Sabine |
Windis Ceil - 350 - 1000 | 1912 | 18 | 28,76 | 6,98 | 0,084 | 50 | 30 | 1,64 | 333 | 73,9 |
Windis Ceil - 350 - 1500 | 2750 | 18 | 30,98 | 12,12 | 0,146 | 50 | 30 | 5,81 | 502 | 76,1 |
Windis Ceil - 350 - 2000 | 3650 | 18 | 28,92 | 13,54 | 0,164 | 50 | 30 | 1,56 | 666 | 76,9 |
Windis Ceil - 350 - 2500 | 5055 | 18 | 29,8 | 20,26 | 0,244 | 50 | 30 | 3,7 | 665 | 77,2 |
Project-specific dimensioning
Windis Ceil 350
Description | File |
Windis Free 500 - Vapaantilan ilmaverhokone
Vesikiertoinen Windis Free 500 on vapaan tilan asennukseen tarkoitettu ilmaverho. Laite soveltuu erinomaisesti teollisuuskohteisiin ja liiketiloihin. Maksimi asennuskorkeus on 5m. Saatavilla kolmena eri leveytenä: 1,5m, 2m ja 2,5m. Laite on varustettuna integroidulla säätimellä. Laitteen omaa säädintä voidaan myös ylikirjoittaa suoraan rakennusautomaatiojärjestelmästä.
Performance
Integrated thermal energy measurement
Adjustable airflow impulse
High-efficiency EC fans
Quick Installation
Quick connectors for external sensors
Integrated heating valve
Features
Modbus TCP and BACnet IP interfaces
Inlet and outlet air temperature measurement
Air bubble detection in water circui
Heating circuit pressure monitoring
Built-in frost protection
Filter differential pressure measurement
Windis Free 500
Unit | Air flow (m3/h) |
Air inlet (°C) | Air outlet (°C) | Power (kW) | Water flow (l/s) | Water inlet (°C) | Water outlet (°C) |
Pressure drop (Kpa) |
Electric power (W) |
Sound pressure level (LpA) 10m2 Sabine |
Windis Free - 500 - 150 | 3900 | 18 | 40 | 30 | 0,317 | 60 | 40 | 41 | 690 | 84 |
Windis Free - 500 - 200 | 5200 | 18 | 40 | 38 | 0,464 | 60 | 40 | 14 | 920 | 87 |
Windis Free - 500 - 250 | 5900 | 18 | 41 | 46 | 0,556 | 60 | 40 | 22 | 1080 | 91 |
Unit | Air flow (m3/h) |
Air inlet (°C) | Air outlet (°C) | Power (kW) | Water flow (l/s) |
Water inlet (°C) | Water outlet (°C) |
Pressure drop (Kpa) |
Electric power (W) |
Äänenpainetaso
(LpA) 10m2 Sabine |
Windis Free - 500 - 150 | 3900 | 18 | 33 | 20 | 0,238 | 50 | 30 | 20 | 690 | 84 |
Windis Free - 500 - 200 | 5200 | 18 | 32 | 24 | 0,286 | 50 | 30 | 6 | 920 | 87 |
Windis Free - 500 - 250 | 5900 | 18 | 33 | 29 | 0,356 | 50 | 30 | 3,22 | 1080 | 91 |
Project-specific dimensioning
Windis Zero – Hydronic Heat Recovery
Windis Zero is a patented control system designed for hydronic heat recovery in air handling unit coils. Windis Zero ensures optimal liquid circulation, maximizing energy savings and enhancing heat recovery efficiency. Windis Zero can be installed either in new or existing air handling units, regardless of the unit's brand. The system works seamlessly in all applications with hydronic heat recovery, providing a versatile and flexible solution for improving energy efficiency.
Windis Zero for multiple exhaust air coil heat recovery
Windis Zero is also suitable for managing heat recovery systems with multiple exhaust air coils. In multi-coil applications, the standard delivery includes 2-way control valves, which individually measure the fluid flow from each exhaust air coil.
Low Operating Costs
The efficiency of heat recovery remains consistently high even during extremely cold conditions. Performance does not deteriorate, keeping supplemental heating needs minimal.
Quick Installation and Commissioning
Factory-assembled and tested solution reduces installation time and effort on-site.
Versatile Solution
Windis Zero can be installed regardless of the air handling unit brand. An ideal solution especially for retrofit projects.
Windis Zero
Delivery Contents
- Solution pump with frequency converter
- 3-way diverting valve
- 3-way energy valve
- Water-side temperature sensors (3 pcs)
- Water-side pressure sensor
- Expansion and filling unit:
- Expansion tank (design pressure 3 bar)
- Safety valve (opening pressure 3 bar)
- Filling valve
- Pressure gauge with shut-off valve
- Differential pressure sensor for air (delivered separately)
- Piping made of P235TR, primed and insulated with 13 mm cellular rubber
Automation Interfaces
Windis Zero is delivered with a pre-programmed controller that can be connected to building automation systems using the following protocols:
- Modbus RTU
- Modbus TCP
- BACnet MSTP
- BACnet IP
- I/O – Enable signal, cooling enable, and demand 0–10 V, alarm output
Pipe Dimensions
Flow rate (l/s) |
Pipe size (DN) |
0,2 | 20 |
0,3 | 25 |
0,5 | 32 |
0,7 | 40 |
1,2 | 50 |
2 | 65 |
2,8 | 80 |
4,8 | 100 |
Emergency Water Supply Unit – Ensuring Reliable Water Supply in All Situations
Windis KVY - Our Emergency Water Supply Unit (Windis KVY) ensures uninterrupted water delivery for critical equipment and systems under any circumstances. The system effectively safeguards against water supply disruptions, sudden interruptions, and contamination, guaranteeing operational reliability precisely when it matters most.
Flexible and Tailored Solutions
The Emergency Water Supply Unit is always individually designed and dimensioned to meet the specific requirements of each project. Whether securing the water supply for an entire property or for individual devices and networks, our solution is adaptable to various needs.
Versatile Applications
Our unit is ideally suited for:
- Food industry production lines
- Emergency showers and other critical water supply points
- Fire hydrant water supply protection
- Maintaining water supply networks for entire buildings
Comprehensive Turnkey Service
We offer a complete solution covering everything from planning and dimensioning to the delivery of the entire system. Storage tank sizing is determined case-by-case, ensuring an optimal and cost-effective solution for every situation. Additionally, the unit can effectively function as a pressure booster, maintaining reliable water pressure even in challenging environments. Contact us today to secure your critical water supply – in all situations.