Product Overview

Fresh Air Ventilation and Heat Recovery for Higher Humidity Environments

The LossnayPro LGH-50RVS-E is designed to provide fresh, filtered air while extracting stale, moisture-laden air from areas such as bathrooms, kitchens and laundries – making it an ideal solution for applications where standard Total Heat Recovery ventilation may not be suitable.

Unlike conventional Lossnay systems that recover both heat and moisture, the LossnayPro uses a non-permeable plastic counterflow heat exchanger that recovers valuable heat energy without transferring moisture between the outgoing and incoming air streams.

This means excess indoor moisture can be exhausted while heat is recovered to help pre-condition the incoming fresh air, reducing the demand on heating and cooling systems.

With a maximum airflow of 139 l/s, the LossnayPro is suitable for residential and commercial applications, including gyms, healthcare facilities, schools, offices and other environments where effective ventilation and humidity management are important.

Key Features

Designed for Moisture-Laden Environments

The non-permeable plastic counterflow Lossnay Core allows stale, humid air to be extracted from bathrooms, kitchens, laundries and other higher-humidity areas without transferring moisture to the incoming fresh air.

Sensible Heat Recovery

Recovers heat energy from outgoing air to pre-condition incoming fresh air, helping maintain indoor comfort while reducing heating and cooling demand.

Energy-Efficient Performance

High-efficiency EC fan motors deliver low Specific Fan Power (SFP), providing effective ventilation with reduced energy consumption.

Flexible Airflow Control

• Four fan speeds with variable airflow control.

• Supply and exhaust fan speeds can be set independently.

• EC fan motors support external 0–10V control.

• Heat exchange bypass function for suitable outdoor conditions.

Quiet Operation

Designed for low-noise performance, operating from just 18 dB(A) at the lowest fan speed.

Easy Installation and Maintenance

• Lightweight chassis for easier handling.

• Multidirectional single condensate drain connection.

• Washable plastic Lossnay Core for straightforward maintenance.

• Accessible components for servicing.

Smart Control and Integration

• Optional Wi-Fi Control Adapter: Enables remote monitoring and control.

• Optional Mitsubishi Electric CO₂ Sensors: Automatically adjust ventilation airflow in response to indoor CO₂ levels.

• BMS Connectivity: Suitable for integration with Building Management Systems.

• Ducted Heat Pump Integration: Can be combined with Mitsubishi Electric ducted air conditioning systems.

Specifications

Specification	Details
Model	LGH-50RVS-E
Heat Recovery Type	Sensible Heat Recovery
Heat Exchanger	Non-permeable plastic counterflow
Maximum Airflow	139 l/s
Temperature Exchange Efficiency	Up to 93%
Fan Speeds	4
Duct Connection	200mm
Dimensions (W × D × H)	974 × 946 × 465mm
Weight	55kg
Power Supply	220–240V / 50Hz
Maximum Running Current	2.2A
Condensate Connection	32mm

Heat Recovery Ventilation Performance

Performance	Speed 1	Speed 2	Speed 3	Speed 4
Airflow (l/s)	35	69	104	139
Input Power (W)	25	60	110	190
External Static Pressure (Pa)	9	38	84	150
Temperature Efficiency (%)	93	91	89	87
Noise dB(A)	18	22	27	33

Important Information

• Condensate drainage is required.

• The internal backflow prevention device eliminates the need for a separate condensate trap.

• Noise levels are measured at 1.5m beneath the unit.

• Performance data is based on Mitsubishi Electric test conditions.