Heat wheels fresh air handling unit
Head-Power Air Conditioner specializing in the manufacture of central air conditioners and special air conditioners such as new heat recovery fans, chillers, rooftop air conditioners, and industrial dehumidifiers.
Under certain conditions virus particles in extract air can re-enter the building. Regenerative air to air heat exchangers (heat wheels) may be sensitive for considerable leaks in the case of poor design and maintenance. For properly operating heat wheels, fitted with purging sectors and correctly set up, leakage rates are about the same as that of plate heat exchangers being in the range of 1-2%. Because the leakage rate does not depend on the rotation speed, it is not needed to switch rotors off. It is known that the carry-over leakage is highest at low airflow, thus higher ventilation rates are recommended. If leaks are suspected in the heat recovery sections, pressure adjustment or bypassing (if any) can be an option in order to avoid a situation where higher pressure on extract side will cause air leakages to supply side. Virus particle transmission via heat recovery devices is not an issue when a HVAC system is equipped with a twin coil unit or another heat recovery device that guarantees 100% air separation between return and supply side.
Enjoy the safety given by Mekar AHUs, 20 years of expertise at your service .
| Roter Type Heat Recovery Fresh Air Handling Unit | |||||||||
| Model NO. | Air Volume m³/h | Roter Specifications mm | Roter Resistance Pa | Drive Motor Power KW | Recovery Efficiency % | Exhaust Fan Power KW | Fresh Air Fan Power KW | ESP Pa | Unit Dimension L*W*H |
| ZQH-1.0 | 1000 | 500*200 | 138 | 1.2 | 80 | 0.55 | 0.55 | ≥150 | 1800*650*700 |
| ZQH-1.5 | 1500 | 500*200 | 166 | 1.2 | 78 | 0.55 | 0.55 | ≥150 | 1800*650*700 |
| ZQH-2.0 | 2000 | 600*200 | 138 | 1.2 | 80 | 0.75 | 0.75 | ≥150 | 2000*750*800 |
| ZQH-2.5 | 2500 | 600*200 | 166 | 1.2 | 78 | 0.75 | 0.75 | ≥150 | 2000*750*800 |
| ZQH-3.0 | 3000 | 700*200 | 138 | 1.2 | 80 | 1.1 | 1.1 | ≥200 | 2000*850*900 |
| ZQH-3.5 | 3500 | 800*200 | 138 | 1.2 | 80 | 1.1 | 1.1 | ≥200 | 2400*950*1000 |
| ZQH-4.0 | 4000 | 900*200 | 138 | 1.2 | 80 | 1.5 | 1.5 | ≥250 | 2500*1100*1300 |
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