Series Vents TwinFresh Expert RA1-50-2

TwinFresh Expert is the most state-of-the-art and efficient solution for a comfortable indoor climate and required air exchange in renovated premises, brand new recently inhabited houses or reconstructed apartments

Heat exchanger type: Regenerative
Filter: MERV 5 (option: MERV 14)
Motor type: DC
Enthalpy heat exchanger

TwinFresh Expert is a new series of single-room energy recovery ventilators.

TwinFresh Expert RA1-50-2 features

Unique Single Room Energy Recovery Ventilator
One TwinFresh Expert unit in ventilation mode can serve rooms up to 500 sq. ft*
Communication between several ventilators for coordinated operation.
Efficient supply and exhaust single-room ventilation up to 30 CFM.
High-tech ceramic energy regenerator with max. heat recovery efficiency up to 93 %.
Reversible DC motors with low energy demand from 3.61 W and safe voltage of 12 V.

Integrated humidity sensor or connection to external sensor for comfortable microclimate.
Integrated control system.
Silent operation from 0.3 Sones.
Easy mounting and maintenance.
Air cleaning with total MERV 5 class filters (optionally MERV 14 filter).
Rated for continuous operation.
Frost- and condensate-free.

*In accordance with ANSI/ASHRAE Standard 62.2-2016


One of the best heat recovery efficiency on the market due to innovative hexagonal structure of the heat exchanger cells.	The specially designed front panel can be closed manually to ensure 100% air tightness and protection against wind.	Easy maintenance. The indoor unit is opened by pressing the latches on both sides.	Integrated air shutters prevent air back drafting.

Сeramic energy regenerator

The high-tech ceramic regenerator with heat recovery efficiency up to 93 % is used for heating of supply air by means of the exhaust air heat recovery. Due to its honeycomb structure, the unique heat exchanger has larger air contact area and excellent heat conducting and accumulating properties. The ceramic regenerator has a special antibacterial treatment to prevent bacteria generation inside of it. The antibacterial treatment is rated for 10 year operation.

Reversible DC motor

Air is supplied or exhausted by a reversible axial fan with DC motor. Due to DC technology the fan has outstanding low energy demand. The fan is powered by safe voltage 12 V. The motor has integrated overheating protection and ball bearings for long service life.

Air filters

The two integrated air filters with total filtration rate MERV 5 provide supply and exhaust air filtration. The filters prevent ingress of dust and insects into the supply air and contamination of the ventilator parts. The filters also have antibacterial treatment. The filter cleaning is done with a vacuum cleaner or water flushing. The antibacterial properties is not removed. MERV 14 filter with the filtration class PM2.5 99 % is available as a specially ordered accessory.*

* Reduces the air flow down to 24 CFM when installed.

TwinFresh ventilator functioning

The ventilator is designed both for reversible mode with energy regeneration and supply or exhaust mode with no regeneration.

CYCLE I. Warm stale air is exhausted from the premise, flows through the ceramic regenerator and transfers up to 93 % of the accumulated heat and moisture to it. As the ceramic regenerator gets warmed up, the ventilator switches to the supply mode.
CYCLE II. Clean cold intake air flows through the regenerator and absorbs accumulated heat and humidity. In 70 seconds, after cooling of the ceramic regenerator, the ventilator is switched to the exhaust air mode and a new cycle starts.

Control

The ventilator is controlled by means of:

Mounting

The ventilator is designed for through-the-wall installation inside a prepared hole in an outer wall of the building.

The best ventilation solution is pairwise installation of reverse phase connected ventilators when some units ensure supply of fresh air to the room and the other units exhaust air from the premise. This way the most efficient balanced ventilation is arranged.

In case of brand new construction, the ventilators are mounted in two stages:

Pre-installation at the stage of the indoor finishing and outer decorative wall finishing. It includes installation of an air duct, an outer ventilation hood and cable installation.
Final mounting before commissioning of a house. It includes installation of a regenerator with a fan and filters and mounting and wiring of an indoor unit with a controller and shutters.