VENTS TwinFresh Easy-D RL7-50-17

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Single-room heat regeneration unit. Air capacity up to 50 m³/h.

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Description
Characteristics
Downloads
Dimensions
Dimensions
Ecodesign
Accessories
Video

Description

Efficient, reliable and energy saving ventilators 24/7:

	Provide fresh air supply		Prevent excessive indoor humidity and mould build-up
	Extract stale air from the room		Reduce heating and air conditioning costs
	Consume little energy		Attenuate indoor noise
	Maintain heat regeneration and indoor humidity balance		Clean air of dust and insects

APPLICATION

The ventilators are designed to ensure continuous mechanical air exchange in flats, cottages, hotels, cafés and other domestic and public premises.
The ventilators are equipped with a regenerator that enables supply of fresh filtered air heated by means of extract air heat regeneration.

The ventilators are designed for through-the-wall mounting and are rated for continuous operation.
Transported air must not contain any flammable or explosive mixtures, evaporation of chemicals, sticky substances, fibrous materials, coarse dust, soot and oil particles or environments favourable for the formation of hazardous substances (toxic substances, dust, pathogenic germs).

VENTILATOR DESIGN VENTS TwinFresh Easy RL7-50-17

VENTILATOR DESIGN VENTS TwinFresh Easy-D RL7-50-17

CERAMIC ENERGY REGENERATOR

The high-tech ceramic energy accumulator with regeneration efficiency up to 97 % ensures extract air heat recovery for warming of supply air flow.
Due to the cellular structure the unique regenerator has a large air contact surface and high heat-conducting and heat-accumulating properties.

The ceramic regenerator is treated with an antibacterial composition which prevents bacteria growth inside of the energy regenerator.
The antibacterial properties last for 10 years.

AIR FILTERS

The two integrated air filters with total filtration rate G3 provide supply and extract 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 solution is not removed.
F8 filter is available as a specially ordered accessory, but when installed, it reduces the air flow down to 40 m³/h.

REVERSIBLE DC-FAN

The reversible axial fan with a DC motor and power supply voltage of 12 V serves for air supply and exhaust.
Due to the applied DC technology the fan is featured with low power consumption.

The fan motor has integrated thermal overheating protection and ball bearings for long service life.

CONTROL AND OPERATION MODES

The ventilator is operated with the wall-mounted control panel or the remote control for your convenience.

OPERATION MODES:

Ventilation mode. The ventilator runs in the air extract or air supply mode with a set speed. In case of synchronous operation of two connected ventilators one unit operates in the supply mode and the other one in the extract mode.
Regeneration mode. The ventilator runs in two cycles, 70 seconds each, to provide heat and moisture regeneration.
interval 1. The warm polluted air is extracted from the room and flows through the ceramic regenerator, which gradually absorbs heat and moisture. In 70 seconds after warming is started the ventilator switches to the air supply mode.
interval 2. The fresh and cold outdoor air flows through the heat regenerator and absorbs the accumulated moisture and heat so that the supply air flow has the room temperature. In 70 seconds, when the energy regenerator gets cold, the ventilator switches to the air extract mode. The cycle starts from the beginning. If two ventilators are installed, they run in opposite phases. While one ventilator supplies fresh air, the second one extracts air from the room.

FUNCTIONING OF THE VENTILATORS

The reversible operation of the ventilator enables energy regeneration and consists of two cycles:

CYCLE I

The polluted warm air is extracted from the room and while passing the ceramic energy regenerator, it transfers the heat and moisture to it. In 70 seconds, as the energy regenerator gets warmed, the ventilator automatically switches to the supply mode.

CYCLE II

The fresh, but cold outdoor air flows through the heat regenerator and absorbs the accumulated moisture and heat so that the supply air flow has the room temperature. In 70 seconds, when the energy regenerator gets cold, the ventilator switches to the air extract mode. The cycle starts from the beginning. The changeover between the supply and extract modes takes place each 70 seconds.

VENTILATION ARRANGEMENT EXAMPLE

The ventilation system based on the TwinFresh ventilators provides for one ventilator in each room.
To ensure balanced ventilation, it is advisable to use a paired number of ventilators and connect those into a single network.
Some ventilators must be set to operate in the supply mode and the other ventilators must be set to operate in the extract mode.
For bigger rooms two and more ventilators are recommended.
TwinFresh may be used as an individual unit. In this case the ventilation mode must be selected individually for each room.

Air moves between the rooms through the door openings and corridors and this way the required air circulation in the house is arranged.
The ventilation system with energy regeneration based on the TwinFresh ventilators significantly reduces heating and air conditioning costs.
iFan WiFi fans are recommended for very efficient extract ventilation in the kitchen and bathroom.
Polluted air is extracted automatically in case of actuation of the motion or humidity sensors.

INSTALLATION EXAMPLE


Mounting into a wall with a standard thickness using the EH-14 outer grille	Flush mounting using the angular mounting kit NP	Mounting into a thin wall using the EH-2 outer hood

Characteristics

Parameter	TwinFresh Easy-D RL7-50-17 1 speed	TwinFresh Easy-D RL7-50-17 2 speed	TwinFresh Easy-D RL7-50-17 3 speed	Measurement unit
Speed	1	2	3	-
Power	2.37	3.8	7.61	W
Voltage	100-240	100-240	100-240	V
Frequency	50/60	50/60	50/60	Hz
Current	0.033	0.047	0.08	A
SFP	0.57	0.46	0.55	W/l/s
Air flow with F8 filter applied	40	40	40	m³/h
Regeneration efficiency	≤ 92	≤ 92	≤ 92	%
F8 filter filtration rate PM2.5	99	99	99	%
Air flow in ventilation mode	15	30	50	m³/h
Air flow in ventilation mode	4	8	14	l/s
Air flow in energy recovery mode	15	30	50	m³/h
Air flow in energy recovery mode	4	8	14	l/s
Filter	G3 (F8 optionally)	G3 (F8 optionally)	G3 (F8 optionally)	-
Shutters	manual	manual	manual	-
Transported air temperature	-15 ... +40	-15 ... +40	-15 ... +40	°С
Sound pressure level at 1 m distance	21	27	29	dBА
Sound pressure level at 3 m distance	12	18	20	dBА
Outdoor sound pressure attenuation according to DIN EN 20140	41	41	41	dBА
The classification of the indoor/outdoor air tightness, according to EN 13141-8	D1	D1	D1	-
The classification of the airflow sensitivity to pressure variations, according to EN 13141-8 [%]	S3	S3	S3	-
Functions	Filter replacement indication, Timer	Filter replacement indication, Timer	Filter replacement indication, Timer	-
Remote control panel	LCD	LCD	LCD	-
Duct	160	160	160	-
Type	supply and exhaust	supply and exhaust	supply and exhaust	-

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Downloads

Dimensions

Characteristics

Parameter	Value	Measurement unit

Dimensions

Ecodesign

Specific energy consumption (SEC), kWh/(m².a)	Cold		Average		Warm
	-76	А+	-37	А	-14	Е
Type of ventilation unit	Bidirectional
Type of drive installed	Three-speed
Type of heat recovery system	Regenerative
Thermal efficiency of heat recovery [%]	76
Maximum air flow rate [m³/h]	25
Power [W]	4.3
Sound power level [dBA]	38
Reference air flow rate [m³/s]	0.004
Reference pressure difference [Pa]	0
Specific power input (SPI) [W/(m^₃/h)]	0.14
Control typology	Clock control
Maximum internal leakage rates [%]	2.7
Maximum external leakage rates [%]	0
Mixing rate of bidirectional units [%]	1
The classification of the airflow sensitivity to pressure variations, according to EN 13141-8 [%]	26
The classification of the indoor/outdoor air tightness, according to EN 13141-8 [m³/h]	2.4
Internet address	http://ventilation-system.com/
The annual electricity consumption (AEC) [kWh electricity/a]	Cold		Average		Warm
	179		179		179
The annual heating saved (AHS) [kWh primary energy/a]	Cold		Average		Warm
	8024		4140		1855

Specific energy consumption (SEC), kWh/(m².a)	Cold		Average		Warm
	-76.2	А+	-37	А	-15	Е
Type of ventilation unit	Bidirectional
Type of drive installed	Three-speed
Type of heat recovery system	Regenerative
Thermal efficiency of heat recovery [%]	76
Maximum air flow rate [m³/h]	50
Power [W]	7.6
Sound power level [dBA]	38
Reference air flow rate [m³/s]	0.008
Reference pressure difference [Pa]	0
Specific power input (SPI) [W/(m^₃/h)]	0.127
Control typology	Clock control
Maximum internal leakage rates [%]	2.7
Maximum external leakage rates [%]	0
Mixing rate of bidirectional units [%]	1
The classification of the airflow sensitivity to pressure variations, according to EN 13141-8 [%]	26
The classification of the indoor/outdoor air tightness, according to EN 13141-8 [m³/h]	2.4
Internet address	http://ventilation-system.com/
The annual electricity consumption (AEC) [kWh electricity/a]	Cold		Average		Warm
	162		162		162
The annual heating saved (AHS) [kWh primary energy/a]	Cold		Average		Warm
	8024		4140		1855

Accessories


SF TwinFresh Easy R-50 F8 F8 Filter	SF TwinFresh Easy R-50 G3 G3 filter set (2 pcs.)	MVM 152 bVsN Round stainless steel outer hood	MVMO 150 bV1s An Round metal grille

RK TwinFresh Easy RL-50 Remote control	KV TwinFresh Easy RL-50 LCD control panel	EH-2 grey 160 Grey painted stainless steel outer hood for thin walls	EH-2 chrome 160 Brushed stainless steel outer hood for thin walls

NP white 160 Angular mounting kit	NP chrome 160 Angular mounting kit	Duct 160-500 Air duct 500 mm	Duct 160-700 Air duct 700 mm

MVVM 162 05 Outer hood for mounting from indoor	EH-14 white 160 White plastic outer hood	EH-14 chrome 160 Grey plastic outer hood with a brushed stainless steel cover	S3 TwinFresh Cartridge for cold climate

SF TwinFresh Easy R-50 F8 F8 Filter (complete with a plastic cup)	EH-13 white 160 White painted aluminium outer hood for cold climate	EH-13 chrome 160 Brushed stainless steel outer hood for cold climate	EH-14 brown 160 Brown plastic outer hood


EH-14 black 160 Black plastic outer hood	EH-14 grey 160 Grey plastic outer hood	EH-14 beige 160 Beige plastic outer hood	EH-14 terracotta 160 Terracotta plastic outer hood

EH-17 white 160 White plastic outer hood	EH-17 brown 160 Brown plastic outer hood	EH-17 black 160 Black plastic outer hood	EH-17 grey 160 Grey plastic outer hood

EH-17 beige 160 Beige plastic outer hood	EH-17 terracotta 160 Terracotta plastic outer hood

Video