VL500 Vertical Lossnay Fresh Air Heat Recovery Ventilation with Wi-Fi Control

VL-500CZPVU2-L-EG

The slimline, Vertical VL500 Lossnay Fresh Air Heat Recovery Ventilation System provides the ultimate in energy efficient ventilation to ensure your home has a constant supply of healthy, fresh air. With its small upright footprint, it can be placed in the garage or a utility cupboard and is not limited to an in-roof installation. Outside air and return air ducts are located on the left side. Equipped with a Wi-Fi adapter for easy operation and real-time heat recovery monitoring and filter clean reminders*

New Release
*Heat recovery monitoring estimated based on default fan settings. Actual recovery savings will vary depending on individual application. Filter and core cleaning notifications are based on suggest system run time.
$ POA
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Outside air and return air ducts

Features

Introducing – the Vertical Lossnay Range

Mitsubishi Electric has launched the next generation of Whole Home Fresh Air Heat Recovery Ventilation that does not require installation in the attic. While exposed ceilings are great from an architectural aesthetics perspective, it limits the ability to install a traditional roof based ventilation system.

Designed for Flexibility and Convenience

Vertical Lossnay Units, VL250, 350 and 500

The Vertical Lossnay Range is designed specifically for the New Zealand housing market and makes energy efficient, super-quiet ventilation accessible to even more homes.

Because of the slimline, vertical upright design, the Lossnay Ventilation System is not limited to an in-roof installation. With its small upright footprint it can be placed in the garage or a cupboard in the kitchen. Now whole home ventilation can be installed without compromising the architectural design of the building.

Automatic Free Cooling* Mode

Using the on-board temperature sensors, the Vertical Lossnay unit automatically enters Bypass Mode when it detects a space is hotter than desired and the outside air is cooler.

To reduce the risk of overheating the home, fresh air is introduced, bypassing the Lossnay Core. This is ideal for cooling down a dwelling that may have overheated during the day once the outside temperature has dropped in the evening.

Automatic Bypass

EA = Exhaust Air, OA = Outside Air, RA = Return Air, SA = Supply Air
*In comparison to using a dedicated cooling device. The unit will continue to use a small amount of power to bring colder fresh air from outside.

Easy to Use Control

A built-in LCD controller allows for easy control and commissioning of the unit. This interface displays all functionality and temperature settings of the system.

Slimline to Fit in a Cupboard

The vertical upright design of the Lossnay Ventilation System is not limited to an in-roof installation. Now whole home ventilation can be integrated into the overall building design without limitations.

Now Standard on the Vertical Lossnay: G4 Filter for Healthier Air

The Vertical Lossnay unit now comes equipped with a G4 filter as standard—delivering advanced, medium-grade filtration to help keep your indoor air clean and healthy. It captures 99.99% of larger particles (up to 10 microns) and around 65% of finer particles as small as 1 micron.

G4 Filter

Effectively filters out:

  • Pollen
  • Mold spores
  • Bacteria
  • Construction dust
  • Some viruses

A built-in solution for fresher air in homes, offices, and any space where air quality counts.

Optional Humidity Sensor – Automated Moisture Control

Add intelligent moisture management to your Lossnay system with the optional humidity sensor. Easily installed on the return air duct and powered by the unit, it automatically adjusts airflow to maintain a comfortable, healthy environment.

Humidity Sensor

Key features:

  • Monitors indoor humidity in real time (shown on controller)
  • Adjustable RH threshold (50%–90%)
  • Increases fan speed when humidity exceeds the set level
  • Maintains boosted airflow for 15 minutes, then returns to normal
  • Compatible with metal/plastic ducts under 20mm (plate required for flexible/EPP ducts)

A smart choice for controlling condensation, dampness, and air freshness.

Optional CO2 Sensor - Smarter Air Quality Control

Enhance your Lossnay system with the optional wall-mounted CO₂ sensor, designed to maintain safe, fresh indoor air. Powered directly by the unit, it’s easy to install and automatically adjusts airflow based on CO₂ levels.

CO2 Sensor

Key features:

  • Continuously monitors CO₂ (400–2,000 ppm*)
  • Automatically boosts ventilation when needed
  • Choose from three CO₂ threshold settings
  • Connect up to two sensors for broader coverage
  • Live CO₂ readings shown on the controller

A smart upgrade for healthier air in homes, schools, offices, and more.

Make Heat Recovery Ventilation Visible – with Advanced Lossnay Wi-Fi Control

Elevating air quality and maximising energy efficiencies has never been easier, because now the power is in your hands.

  • See by how many degrees Lossnay is pre-warming or cooling your home in real time, helping you save on your power bill because less additional heating is required to get a room up to temperature.
  • And in summer, monitor by how many degrees Lossnay reduces the average temperature in your home, using Automatic Free Cooling^ Mode.
  • The app will also proactively remind you when it is time to clean your filters to maximise both cost efficient operation and health benefits.

Lossnay Wi-Fi Control truly is the smart evolution in fresh air ventilation.

Learn about Lossnay Wi-Fi Control

*The following compatible Lossnay models can be connected to the Wi-Fi Control Service via a compatible Wi-Fi Interface MAC-588IF-E: VL-250/350/500 Vertical, LGH-RVX-E-1 and LGH-RVS-E Series only.

The outside ‘Fresh Air’ and the inside ‘Avg Temp’ air temperatures are measured by the built-in sensors that are centrally located in the main Lossnay Ventilation unit.

^In comparison to using a dedicated cooling device. The unit will continue to use a small amount of power to bring colder fresh air from outside.

The 4 Functions of the Lossnay Core

The Balanced Pressure Lossnay Heat Recovery Ventilation System removes stale, dirty air and draws in fresh air from outside. Lossnay also recovers heat energy from the air being transferred to pre-warm (or pre-cool) the fresh air being drawn into your home. Lossnay is ideal for small to large sized homes between 52m2 and 400m2.

  1. The stale air extracted from your home is Return Air (RA). Return Air can contain high levels of CO2, odours and other pollutants. This Return Air stream also contains heat energy that Lossnay can recover, which is not the case with positive pressure ventilation systems.
  2. As the stale Return Air is removed, the Lossnay Core ‘recovers’ the useful heat energy from it. The air is then exhausted (EA) outside along with the unwanted pollutants.
  3. Outdoor Air (OA) is introduced to provide fresh air. It is first filtered, then passed through the Lossnay Core. This allows it be pre-heated in winter (or pre-cooled in summer) using the energy recovered from the Return Air.
  4. Supply Air (SA) then enters your house as fresh pre-heated or pre-cooled air.

Specifications

Heat Exchange System: Heat Recovery Ventilating System
Heat Exchange Element Material: Sensible Heat Exchanger
Energy Efficiency Class: A+
Air Duct Configuration: Outside Air and Return Air Ducts located on the left side
General Specifications
Dimensions (WxDxH, mm): 725 x 556 x 632
Weight: 39 kg
Duct Size: 157mm
Power Supply: 220 - 240 V / Single Phase / 50 Hz
Maximum Current: 2.3 A
Heat Recovery Ventilation Mode
Fan Power (Fan 1-4): 30 - 50 - 70 - 100%
Running Current (Fan 1-4): 0.20 - 0.40 - 0.77 - 1.69 A
Input Power (Fan 1-4): 21.5 - 49 - 104 - 255 W
Air Volume (Fan 1-4): 33.3 - 58.3 - 84.7 - 125 l/s
External Static Pressure (Fan 1-4): 18 - 50 - 98 - 200 Pa
Temperature Exchange Efficiency (Fan 1-4): 92 - 89 - 87 - 85 %
Noise (Fan Speed 1-4): 15 - 22 - 29 - 37 dB
Notes
1: The above values are at factory default
2: The running current, power input, efficiency and noise on the air volume are at 230V 50Hz
3: Noise dB, sound measure at 3m is spherical
4: Temperature exchange efficencey is based on winter conditions
5: Lossnay Ventilation Complies with Standards: AS/NZS60335.2.80 and AS/NZS CISPR14.1

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*Actual price may differ.
Fresh Air Home Ventilation and Heat Recovery