R-EX
Condensing rotary heat exchangers, also known as sensible rotary heat exchangers, recover heat between exhaust and supply air without transferring moisture. By using the temperature difference between the two air streams, R-EX units lower HVAC energy use while keeping indoor conditions stable across a wide range of applications.
Key operational parameters
Performance сharacteristics
Airflow volume
From 100 to over 50,000 m³/h, covering residential, commercial, and industrial applications.
Thermal efficiency
Up to 88% (depending on rotor type and operating conditions).
Pressure drop
Typically 150–250 Pa at nominal airflow
Operating temperature
Stable operation from −25 °C to +50 °C.
Differential pressure
Recommended up to 1000 Pa.
Technical features
Design and structure
3D model
Principle of operations
A perforated aluminum wheel rotates between the warmer exhaust air and the cooler supply air. As it turns, the matrix absorbs heat from the exhaust air and releases it back to the supply stream.
In cold weather, warm, moist exhaust can condense on the cooler rotor surface, releasing latent heat that is also transferred. No moisture is moved to the supply side.
Rotary wheel
High-grade aluminum foil provides excellent thermal conductivity, light weight, and corrosion resistance.
Options:
- Foil thickness: 0.055 or 0.07 mm
- Wave height (corrugation): 1.4 / 1.6 / 1.8 / 2.1 mm
- Rotor width (depth): 100 or 200 mm
Casing and frame
- Galvanized steel — cost-effective for general use.
- Aluminum — lightweight, corrosion-resistant; good for marine/humid sites.
- Stainless steel (AISI 304/316) — for chemically aggressive or highly humid environments.
Most suitable option
Applications
- Residential ventilation — apartments, multi-family houses.
- Commercial buildings — offices, shopping centers, schools, cultural spaces.
- Industrial facilities — workshops, warehouses, production halls.
- Hospitality & wellness — hotels, fitness clubs, swimming pools.
- Large public venues — airports, arenas, exhibition halls, transport hubs.
Decoding Product Specifications
Designation key
R
x
-
x
-
EX
Dx
-
x
/
7
-
0
-
1
A
×
B
×
C
-
x
R
Wheel width
- R «-»: 200 mm
- RS: 100 mm
x
Rotor type
- «-»: condensing
- «E»: enthalpy
- «N»: sorption
- «K»: epoxy
EX
standard commercial group
Dx
Rotor diameter (mm): 200-2500
x
wave height (mm):
- 1.4
- 1.6
- 1.8
- 2.1
7
foil thickness (mm):
7: 0,07
5.5: 0,055
0
purge section:
0-without.
1-with
1
number of wheel section
A
width (mm): 500-2600
B
height (mm): 500-2600
C
depth (mm): 250-2500