Corrosion ProtectionEpoxy matrix & protected frame
Epoxy-coated wheel, corrosion-protected framework and corrosion-resistant bearings.
Rotary Heat Exchangers – Heat Recovery Wheels
HEATEX rotary heat exchangers for air handling units in Egypt: one-piece and segmented wheels with variable-speed stepper motor drives.
Rotary Heat Exchanger– Segmented
Rotary Heat Exchanger01 · HEATEX · SWEDEN Exclusive distributor in Egypt
Recovery Wheel Heat Exchangers
HEATEX rotary heat exchangers are slowly rotating aluminium wheels that pick up energy from the exhaust air and release it into the supply air. They give high sensible recovery in a compact footprint with a low freezing risk, and, depending on the matrix and coating, moisture transfer for latent (enthalpy) recovery.
Model E & OOne-piece rotor, with or without casing
Model ES & ERSegmented rotor, with or without casing
Sensible + latentHeat and moisture recovery
OJ DRHXVariable-speed stepper drive
Applications
- HVAC Systems
- Industrial Facilities
- Hospitals & Pharmaceutical Plants
- Energy Recovery for Ventilation
- Thermal Management
- Air Handling Units (AHU)
- Commercial Buildings
- Data Centers
- Technical Cooling
- Condensation Drying
Rotary & plate heat exchangers
HEATEX air-to-air heat exchangers are custom-made to the project’s technical specifications. There are two families: rotary and plate, and plate heat exchangers come in cross-flow and counter-flow versions. Each family has its own advantages depending on the application. See plate heat exchangers →
| Benefits of rotary heat exchangers | Benefits of plate heat exchangers |
|---|---|
| Low risk of freezing | Very low leakage rate |
| Humidity transfer | No moving parts |
| Small footprint in the air direction | Minimal service and long lifetime |
| High airflow capacities | Rapid and easy cleaning |
Why rotary heat recovery
The rotating wheel moves continuously between the exhaust and supply air, recovering heat and, depending on the matrix, moisture too.
- 70 – 90 % recovery · high efficiency for real energy savings.
- Heat and moisture · both transferred in one compact unit.
- Low frosting risk · often no extra frost protection needed.
- Low pressure drop · less fan energy.
- Built for high airflows · offices, hospitals, malls, data centres and industry.
Choose your rotary model
| HEATEX model | E & O | ES & ER |
|---|---|---|
| Airflow | 200 – 90,000 Nm³/h | 2,000 – 190,000 Nm³/h |
| Rotor | One piece | Segmented |
| Casing | With (E) or without (O) | With (ES) or without (ER) |
| Orientation | Vertical or horizontal | Vertical only |
| Rotor diameter | 500 – 2,575 mm | 1,600 – 3,800 mm |
| Best for | Medium airflows · slide-in casing | Large airflows · assembled on site |
Model E and Model ES can also run as a double-rotor setup. A marine-grade rotor is available on request.
Options for rotary heat exchangers
Corrosion Protection
Leakage ReductionPurge sector & seals
Special seals and a purge sector keep exhaust air out of the supply air.
Humidity TransferMatrix material
Aluminium, epoxy, hybrid or molecular sieve, from sensible only to full humidity transfer.
Fit & AccessibilityHatches & cable glands
Inspection hatches give quick access to the motor, belt and pulley.
DriveModbus drive & Power Belt
Constant or stepper drives with Modbus and a built-in rotation detector.
CleaningClean Blade
Pressurised air cleans the whole matrix in one revolution of the rotor.
02 · DRIVE SYSTEM
Wheel Drive Systems
Every rotary heat exchanger needs a drive. HEATEX wheels can be supplied with a constant-speed AC gear motor, or with a variable-speed OJ DRHX stepper motor drive for precise, energy-efficient control of the recovery.
Unlike a geared motor, the stepper motor keeps its full torque over the whole speed range, and its software rotor guard removes the need for a separate rotation sensor. Control is by 0–10 V or by Modbus RTU / BACnet MS/TP on RS-485, and the drive supports purging, boost start-up and holding torque.