LOSSNAY
Ventilation Systems for Apartments, Country Homes, and Offices
˅ Wall-Mounted Heat Recovery Ventilation Unit Airflow: 51 m³/h — VL-50
˅ Wall-Mounted Heat Recovery Ventilation Unit Airflow: 100 m³/h — VL-100
˅ Wall-Mounted Heat Recovery Ventilation Unit Airflow: 250–500 m³/h — VL-CZPVU-R/L-E
˅ Ducted Heat Recovery Ventilation Units Airflow: 150–2,000 m³/h — LGH-RVX-ER
˅ Ducted Heat Recovery Ventilation Units Airflow: 1,500–2,500 m³/h — LGH-RVXT-E1
˅GUG Direct Expansion (DX) Cooling and Heating Unit for Lossnay Systems Airflow: 500–2,500 m³/h
Series Description
Ventilation in buildings can result in significant heat loss and increased energy consumption. Mitsubishi Electric Lossnay Heat Recovery Ventilation Systems can recover up to 70% of the energy that would otherwise be lost through ventilation during heating or cooling.
Lossnay systems not only reduce energy consumption and operating costs but can also help reduce the initial cost of HVAC equipment by up to 30%, as heat recovery may allow the installation of lower-capacity heating and cooling systems.
Lossnay ventilation units recover both sensible and latent heat, helping to balance not only the temperature but also the moisture content of the incoming fresh air and the extracted indoor air.
Thanks to a specially designed total heat recovery core, incoming fresh air is cooled and dehumidified in summer, while in winter it is heated and humidified using energy recovered from the exhaust air.
The heat exchanger incorporates a specially developed material with selective permeability. This allows water vapor to pass through the heat exchanger membrane while helping to prevent the transfer of contaminants, such as carbon dioxide and ammonia, between the exhaust and supply air streams.
Lossnay Heat Recovery Ventilation – Operating Principles and Technology: View Technical Description (PDF, 1.1 MB, 2 pages)
VL-50S2-E, VL-50ES2-E, VL-50SR2-E
Wall-Mounted Heat Recovery Ventilation Unit (Airflow: 51 m³/h)
VL-50 Wall-Mounted Lossnay Heat Recovery Ventilation Units
To maintain a healthy and comfortable indoor environment, it is important to provide an effective fresh air ventilation system. Mitsubishi Electric Lossnay heat recovery ventilation units offer an efficient solution in terms of cost, comfort, reliability, and energy savings.
Lossnay units feature Mitsubishi Electric's patented heat recovery core, which transfers both heat and moisture between incoming fresh air and outgoing exhaust air.
In winter, the incoming fresh air is preheated and humidified using energy recovered from the warm exhaust air. In summer, the incoming air is partially cooled and dehumidified.
This process not only reduces energy consumption but also helps maintain a healthier and more comfortable indoor environment.
The Lossnay heat recovery core has no moving parts, making maintenance relatively simple. Routine maintenance mainly involves cleaning the filters and heat exchanger.
Key Features
Flexible Installation: VL-50 units can be mounted on a wall in either a horizontal or vertical position.
Single Wall Opening: Fresh air supply and exhaust air discharge are provided through a single wall opening with a diameter of 120 mm.
Adjustable Airflow: Two airflow settings are available — HIGH and LOW.
Integrated Air Damper: A built-in damper can close the fresh air supply duct (Exhaust Only mode) or both air ducts when outdoor temperatures are extremely low.
Installation Accessories: VL-50 units are supplied with installation accessories and a high-efficiency P-50HF2-E filter.
Control Options
VL-50S2-E
Built-in pull-cord switch and fan speed selector.
VL-50ES2-E
Compatible with third-party wired ON/OFF switches and HIGH/LOW airflow selectors.
VL-50SR2-E
Supplied with a wireless infrared remote controller.
Product Brochure PAC-YT40ANRA (0,4 Mb, 1 page.)
VL-100EU5-E
Wall-Mounted Heat Recovery Ventilation Unit (Airflow: 100 m³/h)
VL-100EU5-E Wall-Mounted Lossnay Heat Recovery Ventilation Unit
To maintain a healthy and comfortable indoor environment, it is essential to provide an effective fresh air ventilation system. Mitsubishi Electric Lossnay heat recovery ventilation units offer an efficient solution in terms of cost, comfort, reliability, and energy savings.
Lossnay units feature Mitsubishi Electric's patented heat recovery core, which transfers both heat and moisture between incoming fresh air and outgoing exhaust air.
In winter, incoming fresh air is preheated and humidified using energy recovered from the warm exhaust air. In summer, the incoming air is partially cooled and dehumidified.
This process not only reduces energy consumption but also helps maintain a healthier and more comfortable indoor environment.
The Lossnay heat recovery core has no moving parts, making routine maintenance relatively simple. Maintenance mainly involves cleaning the filters and heat exchanger.
Key Features
Wall-Mounted Installation: The VL-100EU5-E unit is designed for wall mounting in a horizontal orientation only.
Air Duct Connections: Fresh air supply and exhaust air discharge are provided through two wall openings, each with a diameter of 85–90 mm.
Adjustable Airflow: Two fan speed settings are available — HIGH and LOW.
Integrated Air Damper: A built-in damper can close the fresh air supply duct (Exhaust Only mode) or both air ducts when outdoor temperatures are extremely low.
Installation Accessories: The VL-100EU5-E unit is supplied with installation accessories and a high-efficiency P-100HF5-E filter.
Control Options
The VL-100EU5-E ventilation unit is controlled using third-party wall-mounted switches:
ON/OFF Switch — turns the ventilation unit on or off.
HIGH/LOW Fan Speed Selector — allows the user to select between high and low airflow settings.
VL-CZPVU-R/L-E
Wall-Mounted Heat Recovery Ventilation Unit (Airflow: 250~500 m³/h)
VL-CZPVU-R/L-E Wall-Mounted Heat Recovery Ventilation Units
The Mitsubishi Electric VL-CZPVU-R/L-E wall-mounted heat recovery ventilation units feature an air- and moisture-impermeable heat exchanger that ensures complete separation of the supply and extract air streams.
This design allows heat recovery from areas with high heat and moisture loads, such as kitchens and bathrooms.
Each unit is available in two configurations: -R and -L, allowing the outdoor air ducts to be connected from either the right or left side.
Key Features and Benefits
Quiet Operation: Sound pressure levels as low as 15 dB(A) for VL-250/350CZPVU-R/L-E models.
Energy-Efficient DC Motors: Brushless DC fan motors ensure low electricity consumption.
Air Filtration: The units are supplied with two EU-G3 class filters for supply and extract air.
Optional High-Efficiency Filters: NOx and PM2.5 filtration options are available. The filters are installed directly inside the ventilation unit.
Flexible Airflow Balance: Operation with different supply and extract airflow rates is permitted.
Operating Modes: Automatic, Heat Recovery, and Bypass (No Heat Exchange).
Integrated Controller: The control panel is built into the unit casing.
Wi-Fi Connectivity: The units support connection of the MAC-587IF-E Wi-Fi interface for local and remote control.
MELVEST – Lossnay Selection Software
MELVEST is a selection and calculation tool for Mitsubishi Electric Lossnay heat recovery ventilation systems.
LGH-RVX-E Series – Ducted Heat Recovery Ventilation Units
Mitsubishi Electric Lossnay LGH-RVX-E Series ventilation units are equipped with energy-efficient brushless DC fan motors, ensuring low electricity consumption.
The units are supplied with two EU-G3 class air filters for supply and exhaust air.
Lossnay systems can operate independently, in conjunction with Mitsubishi Electric Mr. Slim air conditioning systems, or as part of CITY MULTI VRF systems.
The units provide effective noise attenuation in the fresh air supply duct, reducing outdoor noise transmission by 40 dB.
Key Features and Benefits
Operating Modes: Automatic, Heat Recovery, and Bypass (No Heat Exchange).
External Fan Speed Control: Fan speed can be controlled using an external 0–10 V signal, with the possibility of integration into a Building Management System (BMS).
External Heater Control: Built-in control functionality for an external supply air heater.
Advanced Remote Control: The system can be operated using the PZ-61DR-E wired controller, featuring a Russian-language interface and a built-in weekly timer, or the simplified PZ-43SMF-E controller.
CO₂ Sensor Connection: An external carbon dioxide sensor can be connected to the system. When activated through a dry contact signal, the ventilation unit automatically switches to high fan speed, regardless of the speed selected on the controller.
Wi-Fi Connectivity: The LGH-RVX-E1 Series supports connection of the MAC-567IF-E1 Wi-Fi interface for local and remote operation.
Long Service Life: The heat recovery core has a service life of up to 10 years.
Advanced Heat Exchanger Technology: An ultra-thin membrane is used as the heat recovery core material.
Flexible Airflow Balance: Operation with different supply and exhaust airflow rates is permitted.
Lossnay Selection Software
Lossnay Ventilation Unit Selection and Air Parameter Calculation Software
LGH-RVX-ER
Wall-Mounted Heat Recovery Ventilation Unit (Airflow: 250~500 150~2000 m³/h)
LGH-RVXT Series – Ducted Heat Recovery Ventilation Units
The ventilation units feature a compact design with an overall height of just 500 mm, making them suitable for installation in areas with limited ceiling space.
The units are designed for quiet operation and efficient heat recovery.
Each unit is supplied with two EU-G3 class air filters for supply and exhaust air. The filter set has an estimated service life of approximately 5 years.
The systems can operate independently, in conjunction with Mitsubishi Electric Mr. Slim air conditioning systems, or as part of CITY MULTI VRF systems.
The units provide effective noise attenuation in the fresh air supply duct, reducing outdoor noise transmission by up to 40 dB.
Key Features and Benefits
Compact Design: Overall unit height of just 500 mm.
Quiet Operation: Low noise levels for comfortable indoor environments.
Air Filtration: Two EU-G3 class filters for supply and exhaust air, with an estimated service life of approximately 5 years.
Flexible System Integration: Standalone operation or integration with Mr. Slim and CITY MULTI systems.
Operating Modes: Automatic, Heat Recovery, and Bypass (No Heat Exchange).
External Fan Speed Control: Fan speed can be controlled using an external 0–10 V signal, with support for Building Management System (BMS) integration.
External Heater Control: Built-in control functionality for an external supply air heater.
Remote Control Options: Compatible with the PZ-61DR-E wired controller, featuring a built-in weekly timer, or the simplified PZ-43SMF-E controller.
CO₂ Sensor Connection: An external carbon dioxide sensor can be connected via a dry contact signal. When activated, the ventilation unit automatically switches to high fan speed, regardless of the speed selected on the controller.
Wi-Fi Connectivity: LGH-RVXT-E1 units support the MAC-567IF-E1 Wi-Fi interface for local and remote control.
Long Service Life: The heat recovery core has a service life of up to 10 years.
High Heat Recovery Efficiency: An ultra-thin membrane is used in the heat recovery core to provide efficient energy recovery.
Flexible Airflow Balance: Operation with different supply and exhaust airflow rates is permitted.
Lossnay Selection Software
Lossnay Ventilation Unit Selection and Air Parameter Calculation Software
This software allows users to select suitable Lossnay ventilation units and calculate air parameters for different operating conditions.
LGH-RVXT-E1
Wall-Mounted Heat Recovery Ventilation Unit (Airflow: 1500~2500 m³/h)
GUG-SL-E – Direct Expansion (DX) Cooling and Heating Unit
The Mitsubishi Electric GUG-SL-E direct expansion (DX) cooling and heating unit is designed for connection to the supply air outlet of Lossnay LGH-RVX and LGH-RVXT Series heat recovery ventilation units.
The system offers two methods of controlling cooling and heating capacity:
Room Temperature Control: Based on the temperature measured in the extract air duct.
Supply Air Temperature Control: Based on the temperature of the air supplied to the room (except for the GUG-01SL-E model).
In the first mode, the system maintains the desired temperature in the conditioned space.
In the second mode, the unit removes excess heat from the incoming air during summer or preheats the supply air during winter.
Mitsubishi Electric Mr. Slim PUHZ-ZRP Series outdoor units are used as condensing units. A list of compatible outdoor units is provided in the Product Brochure.
Control System
The GUG-SL-E unit incorporates two printed circuit boards (PCBs) within its control box.
One PCB, based on the PAC-IF013B-E controller, manages communication and operation with the outdoor condensing unit.
The second PCB provides communication and coordination with the Lossnay LGH-RVX(T) ventilation unit.
Remote Control
The system is operated using a dedicated wired wall-mounted controller, supplied as standard.
The controller provides the following functions:
ON/OFF control of the entire system.
Selection of operating modes: Cooling, Heating, and Ventilation.
Adjustment of the desired temperature.
An additional PZ-61DR-E remote controller (optional) can be connected to the Lossnay ventilation unit to configure its advanced functions.
Important Compatibility Note
For compatibility with the GUG-SL-E unit, Lossnay LGH-RVX Series ventilation units must meet the following requirements:
Manufacturing Date: June 2016 or later.
Serial Number: 16060001 or higher.
Firmware Version: 05 or later.
GUG-01/02/03 SL-E
Ducted DX Cooling and Heating Units (Airflow: 500–2,500 m³/h)