Products / 14.08.2023
Diving deeper into cross-flow heat exchangers, we're excited to introduce you to ZERN ENGINEERING's Enthalpy Heat Exchanger Series!
Remembering our earlier discussion of ZERN ENGINEERING's EC Series, we uncover the overall purpose and operating principle of an enthalpy heat exchanger. Refresh your memory or explore the EC Series in detail by clicking here: https://www.linkedin.com/feed/update/urn:li:activity:7094261175940448256/
The E Series Unveiled
E Series - a range of remarkably efficient cross-flow enthalpy heat exchangers meticulously designed for balanced ventilation systems. By incorporating a special polymer membrane, this heat exchanger seamlessly transfers both sensible heat energy and latent water vapor energy, while acting as a formidable barrier against harmful impurities, micro-organisms, dust, and other contaminants.
The above features allow the E series heat exchangers to meet our customers' energy efficiency requirements, while also increasing the comfort and safety of the indoor environment.
Versatile applications
Flexibility is the hallmark of the E series. Whether in monobloc or combi configurations, they address airflow scenarios and ensure optimal performance in different environments.
Tailoring performance to your needs
Notable among its features is the availability of two configurations with different plate spacings - 2.7mm and 4.5mm. This versatility allows our customers to navigate a wide range of airflows while customizing performance parameters to their specifications.
Latest news from ZERN ENGINEERING
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Enthalpy cross-flow heat exchangers by ZERN ENGINEERING (E-EX4 series) are compact plate cores that recover both heat and moisture in small HRV/ERVs and decentralized units. A composite aluminum + vapor-permeable membrane core delivers stable performance, low pressure drop, and easy integration for applications where indoor humidity balance matters.
Key operational parameters
Performance сharacteristics
Thermal efficiency
Up to 70% under optimal conditions
Humidity efficiency
Up to 40% under optimal conditions
Pressure drop
Typically, 40–150 Pa (depends on air flow, plate spacing & core size)
Operating temperature
−25 °C to +50 °C
Air leakage
<1%
Maintenance
Durable, corrosion-free PS core; washable for long service life
Technical features
Design and structure
3D model
Principle of operations
Supply and exhaust air move perpendicularly (90°) through separate membrane-aluminum channels. Heat and water vapor pass through the microporous membrane, while gases, odors, and contaminants are blocked - providing effective recovery and hygienic air separation.
Core material
Corrugated aluminum plates laminated with a microporous polymer membrane, which ensures the transfer of sensible and latent heat, moisture diffusion and long service life.
Casing materials
- Aluzinc steel - economical and corrosion-resistant for long-lasting performance.
- Aluminum - lightweight, corrosion-resistant; good for humid sites.
- Stainless steel (AISI 304/316) - for aggressive/hygienic sites.
Main areas of use
Applications
- Residential ventilation - apartments, small homes, single-room ERVs.
- Small commercial - shops, offices, classrooms.
- Hospitality & care (non-sterile) - hotel rooms/corridors, clinics, patient areas.
- Decentralized systems - compact, wall-mounted ERVs and facade units.
SIZES OF OUR HEAT EXCHANGERS
MODEL LINE
- Dimensions A and B are fixed. Dimension C is the width of the heat exchanger and can be varied.
- Each heat exchanger model can be manufactured with a depth (dimension C) ranging from 100 mm to 800 mm per unit.
- Heat exchangers with a width of 800 mm and above are supplied as two or more units.
| Series commercial group |
Model | A width [mm] |
В height [mm] |
С depth [mm] |
h plate distance [mm] |
X casing modification |
| E-EX4 | 200 | 200 | 200 | 100-400 | 2.7 / 4.5 | 1 |
| 250 | 250 | 250 | 2.7 / 4.5 | 1 | ||
| 300 | 300 | 300 | 2.7 / 4.5 | 1 |
Decoding Product Specifications
Designation key
E-EX4
A
/
C
/
h
-
x
E-EX4
commercial group
A
width, length (mm)
C
depth (mm)
h
distance between plates (mm)
x
casing modification
- 1 - aluzinc