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AWN BASIC

EXHAUST FANS WITH HEAT RECOVERY

Exhaust air heat recovery (AWN) with heat pump for the on-demand exhaust air system

In this version (formerly called AWN-RV and AWN-DV), AWN can be associated with third-party heat pumps via a brine buffer. The AWN Basic is a combination of an air exhaust module and a heat exchanger to ensure heat recovery.

The AWN Basic can be used, for example, if the heat pump technology is already installed in a building. To do this, it must have a big enough heat sink, for example via a laminated storage tank, so that the AWN Basic can be fed with a cold enough fluid (0 ° C maximum) and that large amounts of heat can thus be extracted from stale air.

Because heat vapors are not specifically designed to reuse waste heat, sufficient brine buffer (stratified storage tank) is required to ensure more homogeneous heat transfer.

To allow consistent operation and continuous transfer of available heat from stale air, a combination with Aereco’s Connect WP (without brine buffer) must be used (see product : AWN Connect).

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2 types of ventilation module: RV for indoor installation & DV for outdoor installation

Constant pressure control: ideal for demand-controlled ventilation

Easy to maintain: motor easily accessible by a trapdoor to clean the blades

Silent: acoustic foam on the entire envelope and sound trap available on request, optional.

Low energy consumption: the EC engine meets the requirements of EnEV

Easy to install: man available adaptation parts, possibility of custom-built construction

Free choice of heat pump

Free connection to the heating circuit and / or hot water preparation

Description

Characteristics

Schematic

Gallery

Documents

To be combined with a suitable heat pump

In order to effectively dissipate heat lost in the heat exchanger, it must be cooled as much as possible with cold brine. On the other hand, the brine temperature must then be raised to a usable level in order to effectively introduce heat into the building. The AWN Basic must always be associated with a suitable heat pump. The Aereco exhaust air heat pump is particularly suitable for this purpose : unlike conventional brine / water heat pumps, the Connect WP is perfectly adapted to the use of exhaust air heat and ensures operating times. and high margins with high returns.

Constant pressure control

The fan creates a negative pressure in the suction chamber of the AWN Basic to evacuate the extracted air from the building. On-demand air extraction elements always adapt to the humidity of the room and require variable volumetric flow rates. Aereco’s constant pressure control technology ensures constant suction pressure in all product of AWN range.

Easy maintenance

An air filter protects downstream parts, such as the heat exchanger and the fan, reliably against contamination. Instead of a complex cleaning of these parts, only the filter must be replaced each year by a new one.

Filter monitoring

If the pressure loss of the filter increases sharply before the next maintenance, a filter monitor issues a warning message. The message can be transmitted, for example, to the building management system.

		AWN DV-A40 Basic 101	AWN DV-A50 Basic 101	AWN DV-A70 Basic 101
Information
Installation		Outdoor	Outdoor	Outdoor
Recommanded setting pressure	Pa	130	130	130
Max. airflow (75%)	m³/h	1.650	2.475	3.600
Sound pressure level at 3m distance (75%) – Lp, A	dB(A)	45	47	48
Sound power level from the suction side device (75%) – Lw, A	dB(A)	52	56	61
Sound power level from the pressure side device (75%) – Lw, A	dB(A)	–		–
Required height for maintenance operations	mm	1.800	2.100	2.300
Connection to the main station
Exhaust air – pipe connection (DN)	mm	ø 355	ø 400	ø 400
Exhaust air – connection options		1-2 connections left/right/front side Standard : 1 x frontal (bypass laterally)	1-2 connections left/right/front side Standard : 1 x frontal (bypass laterally)	1-2 connections left/right/front side Standard : 1 x frontal (bypass laterally)
Integrated elastic connector for pipe		Included	Included	Included
Brine – Pipe connection	mm	ø 22 (Cu)	ø 28 (Cu)	ø 28 (Cu)
Brine – Max. Airflow (Recommendation)	m³/h	1	2,4	2,8
Brine – Permitted antifreeze		Ethylene glycol	Ethylene glycol	Ethylene glycol
Brine – Internal pressure loss airflow	kPa	22	35	31
Condensate – Pipe connection	mm	ø 20	ø 20	ø 20
Brine/ Condensate – Connection options		Left or right	Left or right	Left or right
Energetic data
Max. Recoverable exhaust heat – heating period (Brine flow 4 ° C)	MWh	18	32	45
Max. Power of the heat exchanger at flow rate at recommended settings (brine flow 4 ° C)	kW	5,8	11,6	15,4
Ventilation and acoustic features
Max Airflow (100%) at 130Pa	m³/h	2.200	3.300	4.800
Soud pressure level – 3 meters distance at 100/50%	db(A)	54 / 40	52 / 41	54 / 43
Sound power level on suction side at 100/50%	dB(A)	55 / 49	62 / 52	65 / 56
Sound power level on the pressure side at 100/50%	db(A)	–	–	–
Integrated pressure control
Digital pressure display		Included	Included	Included
Max. increase of pressure	Pa	300	300	300
Electrical data
Fan – Drive technology		EC-Motor	EC-Motor	EC-Motor
Repair switch		Included	Included	Included
Supply voltage	V / Hz	230 / 50	230 / 50	230 / 50
Max current consumption	A	2	2,4	3,3
Power consumption fan device (75%) at 130 Pa	W	177	226	355
SFP fan (75%)	W/m³/h	0,107	0,091	0,099
Max. fan power consumption (Motor)	W	465	530	740
Index fan protection	IP	54	54	54
Fan’s motor protection		Internally	Internally	Internally
Fault signal and heat pump release		Contact for groupe message, digital display on the device	Contact for groupe message, digital display on the device	Contact for groupe message, digital display on the device
Max acceptable exhaust air temperature	°C	40	40	40
Housing properties
Weight (unfilled unit)	kg	173	205	364
Material		Steel (galvanized), Aluminum	Steel (galvanized), Aluminum	Steel (galvanized), Aluminum
Other components
Filter protection class (including filter monitoring)		G4	G4	G4
Integrate condensate tray with siphon		Included	Included	Included
Smoke detector and bypass for free outflow in case of fire		Included	Included	Included

All data for exhaust air with 20 ° C and 50% rel. Humidity and for brine from 35% ethylene glycol water

	AWN RV-A40 Basic 100/101	AWN RV-A50 Basic 100/101
Information
Installation	Indoor: 100, Outdoor: 101	Indoor: 100, Outdoor: 101
Recommanded setting pressure	130	130
Max. airflow (75%)	1.275	1.950
Sound pressure level at 3m distance (75%) – Lp, A	42	36
Sound power level from the suction side device (75%) – Lw, A	61	53
Sound power level from the pressure side device (75%) – Lw, A	63	66
Required height for maintenance operations	1.600	1.800
Connection to the main station
Exhaust air – pipe connection (DN)	ø 355	ø 400
Exhaust air – connection options	1-2 connections left/right/front side Standard : 1 x frontal (bypass laterally)	1-2 connections left/right/front side Standard : 1 x frontal (bypass laterally)
Integrated elastic connector for pipe	Included	Included
Brine – Pipe connection	ø 22 (Cu)	ø 28 (Cu)
Brine – Max. Airflow (Recommendation)	1	2,4
Brine – Permitted antifreeze	Ethylene glycol	Ethylene glycol
Brine – Internal pressure loss airflow	22	35
Condensate – Pipe connection	ø 20	ø 20
Brine/ Condensate – Connection options	Left or right	Left or right
Energetic data
Max. Recoverable exhaust heat – heating period (Brine flow 4 ° C)	15	26
Max. Power of the heat exchanger at flow rate at recommended settings (brine flow 4 ° C)	5	7,8
Ventilation and acoustic features
Max Airflow (100%) at 130Pa	1.700	2.600
Soud pressure level – 3 meters distance at 100/50%	44 / 41	42 / 28
Sound power level on suction side at 100/50%	71 / 63	57 / 49
Sound power level on the pressure side at 100/50%	67 / 60	73 / 59
Integrated pressure control
Digital pressure display	Included	Included
Max. increase of pressure	300	300
Electrical data
Fan – Drive technology	EC-Motor	EC-Motor
Repair switch	Included	Included
Supply voltage	230 / 50	230 / 50
Max current consumption	2	2,3
Power consumption fan device (75%) at 130 Pa	151	225
SFP fan (75%)	0,118	0,115
Max. fan power consumption (Motor)	450	520
Index fan protection	54	54
Fan’s motor protection	Internally	Internally
Fault signal and heat pump release	Contact for groupe message, digital display on the device	Contact for groupe message, digital display on the device
Max acceptable exhaust air temperature	40	40
Housing properties
Weight (unfilled unit)	195	260
Material	Steel (galvanized), Aluminum	Steel (galvanized), Aluminum
Other components
Filter protection class (including filter monitoring)	G4	G4
Integrate condensate tray with siphon	Included	Included
Smoke detector and bypass for free outflow in case of fire	Included	Included