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Heat Reclaim Ventilation

Image of HRV

Reduced air conditioning load

Dialogue balloon emphasizing that air conditioning load is reduced by about 20% due to total heat exchange ventilation.

Total heat exchange ventilation

This unit recovers heat energy lost through ventilation and curbs room temperature changes caused by ventilation, thereby conserving energy and reducing the load on the air conditioning system.

Enthalpy efficiency drastically improved by employing newly developed ultra-thin film element! (VAM-GJ model)

  • Due to the thinner film...
    • Decreases the moisture resistance of the partition sheets drastically.
    • Realises more space for extra layers in the element, resulting in increased effective area that supply and exhaust air can be exposed to.
  • Moisture absorption increased by approx. 10%!

Illustration of the ultra-thin film element. Illustration describing the sheet structure of the ultra-thin film element. Dialogue balloon emphasizing that the thickness of the partition sheet is 40 µm.

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Dialogue balloon emphasizing that air conditioning load is reduced by about 8% due to auto-ventilation mode.

Auto-ventilation Mode Changeover Switching

Automatically switches the ventilation mode (Total Heat Exchange Mode/Bypass Mode) according to the operating status of the air conditioner.

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Dialogue balloon emphasizing that air conditioning load is reduced by about 2% due to pre-cool, pre-heat control function.

Pre-cool, Pre-heat Control

Reduces air conditioning load by not running the HRV while air is still clean soon after the air conditioner is turned ON.

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Dialogue balloon emphasizing that air conditioning load is reduced by about 30% in total.

Air Conditioning Load Reduced by Approximately

Air conditioning load reduction

  • * The air conditioning load reduction values may vary according to weather and other environmental conditions at the location of the machine's installation.
  • * The air conditioning load reduction values are based on the following conditions;
    Application: Tokyo office building
    Building form: 2 floors above ground, 6 floors underground, floor area 2,100 m2
    Personnel density: 0.25 person/m2
    Ventilation volume: 25 m3/h
    Indoor air conditioning level: summer 25°C 50% RH, intermediate seasons 24°C 50% RH, winter 22°C 40% RH
    Operating time: 2745 hours (9 hours per day, approx. 25 days per month)
    Calculation method: simulation based on "MICRO-HASP/1982" of the Japan Building Mechanical and Electrical Engineers Association.
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