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ZERN ENGINEERING™
by Blauberg Ventilatoren GmbH
Stäblistraße 6.
81477, Munich, Germany
| ISK-SODEX 2025 Invitation |
ZERN ENGINEERING is heading to Istanbul! 💫
Very soon we will meet at the international exhibition ISK-SODEX 2025!
📅 Dates: October 22–25, 2025
📍 Location: Istanbul, Turkey
🔹 Our booth: Hall 4, A31
What awaits you:
✨ Presentation of our latest engineering solutions
✨ Introduction to energy efficiency technologies
✨ Live communication and valuable networking opportunities
Come and join us – it will be exciting!
| Enthalpy Hygiene Certification VDI 6022 |
We are excited to announce that our enthalpy plate heat exchangers have officially obtained hygiene certification in line with VDI 6022, highlighting our ongoing commitment to safe, efficient, and sustainable ventilation technology.
🔍 Why is VDI 6022 important?
This European standard is among the most rigorous frameworks for HVAC hygiene. It establishes strict criteria for design, material selection, and cleanability — ensuring that ventilation components can be safely used in sensitive facilities such as healthcare centers, laboratories, educational institutions, and public buildings.
🧪 Internationally recognized hygiene compliance
Our EC-EX6 series has been tested and confirmed to meet multiple standards, including:
✅ VDI 3803, sheet 1 (05/2020)
✅ DIN 1946, part 4 (09/2018)
✅ ÖNORM H 6020 (03/2024)
✅ ÖNORM H 6021 (01/2023)
✅ SWKI VA104-01 (01/2019)
✅ SWKI VA105-01 (08/2015)
📐 Benefits of certified enthalpy exchangers
With the ability to transfer both temperature and moisture, EC-EX6 exchangers create balanced indoor climates while maximizing energy efficiency. Certification guarantees that these advantages are delivered under strict hygiene and safety requirements.
♻️ Clean air as a principle
For us, certification is not just a milestone — it is a proof of our philosophy: innovation with responsibility. By achieving this recognition, ZERN ENGINEERING continues to support healthier, more sustainable building environments.
🔗 Discover more: Hygiene Test Certificate ZERN HU_HC_HS_HD_EC-EX6_EN.pdf
Effective energy recovery starts with ZERN ENGINEERING🔋
| Pool & fitness ventilation – Managing humidity and comfort 🏊 |
Indoor swimming pools and fitness centers are among the most challenging environments for ventilation systems.
💦 High water evaporation, constant temperature differences, and intense human activity create extreme humidity and corrosive air conditions.
Without proper air management, these factors lead to:
That’s why a well-designed Air Handling Unit (AHU) with efficient heat recovery is essential.
The role of the heat exchanger in pool & fitness ventilation
In every high-performance AHU, the heat exchanger is at the heart of the system.
Its function is to recover energy from the warm, humid exhaust air and transfer it to the incoming fresh air — without mixing the two streams. This allows the system to:
1. Reduce heating or cooling energy consumption
2. Maintain stable indoor temperature
3. Control humidity levels
4. Ensure fresh, healthy air supply
ZERN ENGINEERING solution for aggressive environments
For swimming pools, spas, and high-humidity fitness centers, we developed a special series of counter-flow air-to-air heat exchangers designed to withstand aggressive conditions:
🪙 Casing – corrosion-resistant aluminum with gold epoxy coating, providing long-term protection against chlorinated and saline air.
📄 Heat transfer plates – made of high-quality polystyrene (PS), ensuring high thermal efficiency and complete immunity to rust.
♻️ Counterflow design – maximizes temperature efficiency, delivering superior energy savings even in demanding operating modes.
⚙️ Durability & reliability – engineered for continuous operation in humid and chemically aggressive environments.
Why it matters for pools & fitness facilities
1. Energy efficiency – lower heating and cooling costs, even with large fresh air volumes.
2. Comfort – stable temperatures and optimal humidity for users.
3. Building protection – prevention of condensation and structural damage.
4. Hygiene – minimized risk of mold, bacteria, and unpleasant odors.
With ZERN ENGINEERING heat exchangers, you get more than just ventilation — you get climate stability, lower operational costs, and extended system lifetime.
