Ecofresh Rotors/ Wheels are available in a variety of substrates and desiccant coatings.

The EcoFresh Heat Recovery Wheel, which recovers total energy (sensible as well as latent), assists in meeting all the requirements of Indoor Air Quality (IAQ), humidity control and energy savings.

Incorporation of EcoFresh Heat Wheels into the air-conditioning system means more outdoor air at lower energy cost (reduced chiller load).

HOW DOES THE ECOFRESH WHEEL WORK?

In a typical installation, the wheel is positioned in an Air Handling Unit so that it is divided into two half moon sections.

Stale exhaust air is drawn through one half and outdoor air through the other in a counter flow pattern. At the same time, the wheel is rotated. Sensible heat is transferred as the metallic substrate picks up and stores heat from the warmer air stream and gives it up to the cooler one.

Latent heat is transferred as the desiccant coating on the metallic substrate adsorbs moisture from the air stream that has the higher humidity ratio and releases the moisture into the air stream that has the lower humidity ratio.

OPERATING PRINCIPLE

1. High Selectivity . . . Almost no cross contamination:
   EcoFresh Heat Wheels MS 270 use desiccant Molecular Sieve 3Å (EcoSorb 300) coated/used on aluminum substrate. This limits the cross contamination to absolute minimum and ensure exclusion of contaminants in the air streams, while transferring water vapour molecules.
2. In-built purge sector eliminates cross contamination:
   Purge section provides strict separation of air flows, preventing carryover of bacteria, dust and pollutants from exhaust air to supply air. Purge section and labyrinth sealing system limit cross contamination to .04% of the exhaust air concentration by volume.
3. Structural rigidity:
   State-of-the-art winding technology and adhesives give EcoFresh rotors a high structural strength.
   EcoFresh is 270mm deep which also gives it a higher structural strength.
4. Highly Polished Surface:
   Vertical run out less than 1mm per 1000mm resulting in extremely low leakage across the seals.
5. Innovative manufacturing design:
   Segmented and non-segmented options
   Spoke structure also ensures easy removal of individual wheels sections for cleaning or repair/replacement (in case of segmented plus).
   Metallic construction, coupled with the robust spoke structure allows for projects to be specified for larger wheel diameters.
   
6. Industry's Highest Recovery/Performance:
   High Desiccant loading/coating.
   Equal sensible and latent recovery, thus, comparatively higher sensible and latent recovery.
   Higher performance , lower pressure drops : 78% nominal at 700 FPM (3.5 m/s) and 0.67" w.c. (170 Pa) pressure drop.
   Laminar airflow due to thin aluminum substrate and uniform desiccant coating.
   Superior airflow characteristics allow design for higher velocities and flow rates.
7. Non contact labyrinth:
   No wear and tear
   Effective sealing
   Long life
   
8. No damage when exposed to freeze/thaw cycles:
   Wheel rotation speed control helps to limit frost formation by keeping the exhaust air temperature above the dew point.
9. Wide Range:
   Total energy recovery (Enthalpy) as well as sensible wheels.
   Customised Flute height and Rotor depth options.
   Cassette as well as Rotor options.
   Standard and Customized options.
   500 mm to 5000 mm (dia.)
   Easy retrofit options.