HU / HS / HC / HD-EX6
Polystyrene counter-flow heat exchangers by ZERN ENGINEERING (HU / HS / HC / HD-EX6 series) high-efficiency plate heat exchangers for applications where only temperature (sensible) transfer is required.
Thermoformed polystyrene plates ensure reliable performance, absolute air separation, and low pressure drop - ideal for residential and commercial units.
Key operational parameters
Performance characteristics
Thermal efficiency
Up to 95% under optimal conditions.
Pressure drop
Typically, 40-150 Pa (depends on airflow and core size).
Operating temperature
−25 °C to +50 °C.
Air leakage
< 0.5%
Maintenance
Durable, corrosion-resistant, washable cores.
Technical features
Design and structure
3D model
Principle of operations
Supply and exhaust air streams move in opposite directions through sealed, alternating channels. Heat crosses the plate walls with no air mixing, maintaining a strong temperature gradient along the full path for maximum efficiency.
Polystyrene plates are vapor-tight, so no moisture is transferred.
Core material
Thermoformed polystyrene, lightweight and corrosion-free, with a monolithic, fully sealed structure to prevent cross-contamination. Channel geometry is optimized for high surface area and low resistance, and the core is washable for easy maintenance.
Casing materials
- Polystyrene (HIPS) - lightweight, insulated; ideal for compact residential units.
- Aluzinc steel - economical and corrosion-resistant for long-lasting performance.
- Aluminum - lightweight, corrosion-resistant; good for humid sites.
- Epoxy-coated - for chemically active or coastal areas.
- Stainless steel (AISI 304/316) - for aggressive/hygienic sites
Main areas of use
Applications
- Residential buildings - apartments, multi-family housing, private homes.
- Commercial facilities - offices, shopping centers, schools, cultural institutions.
- Industrial systems - production halls, warehouses, logistics complexes.
- Hotel and wellness sector - hotels, fitness centers, swimming pools.
- Public spaces - airports, stadiums, exhibition halls, transport hubs.
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 600 mm per unit.
- Heat exchangers with a width of 600 mm and above are supplied as two or more units.
| Series commercial group |
Model | A width [mm] |
В height [mm] |
C depth [mm] |
X casing modification |
| HU / HS / HC / HD-EX6 | 138 | 318 | 138 | 100-600 | 2 / 2.1 |
| 172 | 397 | 172 | 1 / 1.1 / 2 / 2.1 / 3 / 3.1 | ||
| 230 | 455 | 230 | 1 / 1.1 / 2 / 2.1 / 3 / 3.1 | ||
| 232 | 461 | 232 | 1 / 1.1 / 2 / 2.1 / 3 / 3.1 | ||
| 271 | 496 | 271 | 1 / 1.1 / 3 / 3.1 | ||
| 312 | 537 | 312 | 1 / 1.1 / 3 / 3.1 | ||
| 366 | 366 | 366 | 2 / 2.1 | ||
| 450 | 270 | 450 | 1 / 1.1 / 3 / 3.1 | ||
| 394 | 619 | 394 | 3 / 4 | ||
| 477 | 700 | 477 | 3 / 4 | ||
| 533 | 758 | 533 | 3 / 4 |
Decoding Product Specifications
Designation key
HU / HS / HС / HD - EX6
-
B
/
C
-
x
HU / HS / HС / HD - EX6
commercial group
B
height (mm)
C
depth (mm)
x
casing modification
- 1- aluzinc
- 1.1 - aluzinc with a T-profile
- 2 - plastic
- 2.1 - plastic with a T-profile
- 3 - aluminium
- 3.1 - aluminium with a T-profile
- 4 - aluminium epoxy coated