China Commerical Fresh Air Unit Heat Recovery Ventilators

Heat recovery ventilator (HRV) can help make mechanical ventilation more cost effective by reclaiming energy from exhaust airflows. It uses heat exchangers to heat or cool incoming fresh air, recapturing 60 to 80 percent of the conditioned temperatures that would otherwise be lost. The heat recovery unit is the heart of a HRV, usually consisting of a cube-shaped transfer unit made from special conductive materials. Incoming and outgoing airflows pass through different sides of the cube (but are not mixed), allowing conditioned exhaust air to raise or lower the temperature of incoming fresh air.

After passing through the heat recovery unit, the warmed or cooled fresh air goes through the HVAC air handler, or may be sent directly to various rooms. Stale air from return ducts pre-conditions the incoming flow before exiting. Systems in various sizes and configurations are available to automatically maintain 0.35 air changes per hour, the rate usually recommended to maintain good air quality. Many systems include filters to further control contaminants that would otherwise re-circulate through the home.

Conventional fan and vent assemblies for bathrooms and kitchens may allow significant energy losses. A HRV system can incorporate small, separately switched booster fans in these rooms to control moisture or heat generated by activities like showering or cooking. Odors and pollutants can be quickly removed, but energy used to condition the air is recycled in the heat recovery unit. Some codes or applications may still require stoves to be separately vented for removal of grease or gas fumes.

Model 2Q2X3Q3X4Q4X5Q5X6Q6X8Q8X10Q10XAir FlowHm3/h2003004005006008001000Mm3/h160220300400480640800Lm3/h120160200300360480600Static pressure HPa505080808090100MPa35366064657280LPa25264048495460Enthalpy EfficiencySummerHigh%60606262626363Low%65656767676767WinterHigh%65656666686969Low%71717272727272Temp. Efficiency (%)High%/66/66/65/65/66/66/65Low%/72/72/70/70/71/71/71Noise levelHighdB(A)39404243455051LowdB(A)35353839414546Power supply V/N/Hz220/1N/50Hz220/1N/50HzPower inputW2X402X402X702X702x702x2002x200Net weightkg3236353938434045455060677078

Factory View
Production Machinery
Test Lab
Air Handling Unit Production Line