Vents VUT 350 VB EC A21

Air handling units in heat- and sound-insulated casing equipped with a counter-flow polystyrene heat exchanger

Maximum airflow: 450 m³/h
Sound pressure level LpA at 3 m: 28 dB(A)
Heat exchanger type: Counter flow
Extract filter: G4
Supply filter: F7 (G4 optional)
Sound insulation
Motor type: EC
Bypass: Auto
Reheater: Optional
Preheater: Optional
BMS protocol: ModBus
Control: Smartphone
Casing material: Polypropylene/Thermoplastic elastomer
Humidity sensor: Optional
CO2 sensor: Optional
VOC sensor: Optional
PM2.5 sensor: Optional

	Unit of measurement	VUT 350 VB EC A21
Connected air duct size	mm	160
Minimum supply voltage	V	230
Maximum supply voltage	V	230
Power supply frequency	Hz	50/60
Rated power	W	178
Unit current	A	1.4
Maximum airflow	m³/h	450
Sound pressure level LpA at 3 m	dB(A)	28
Heat recovery efficiency, max	%	92
Heat exchanger type	-	Counter flow
Heat exchanger material	-	Polystyrene
Weight	kg	64
Extract filter	-	G4
Supply filter	-	F7 (G4 optional)
Transported air temperature (max)	°С	40
Transported air temperature (min)	°С	-25
Ambient air temperature min	°С	1
Ambient air temperature max	°С	40
Ambient air humidity max	%	60
Ingress protection rating	-	IP20
Ingress protection rating of the drive	-	IP44

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Trademark	Vents
Model	VUT 350 VB EC A21
Specific energy consumption (SEC) (kWh/(m²/a))	Cold		Average		Warm
	-81	A+	-42.3	A+	-17.5	E
Type of ventilation unit	Bidirectional
Type of drive installed	Variable speed
Type of heat recovery system	Recuperative
Thermal efficiency of heat recovery (%)	86
Maximum flow rate (m³/h)	390
Electric power input (W)	177
Reference flow rate (m³/s)	0.078
Reference pressure difference (Pa)	50
Specific power input (SPI) (W/(m³/h))	0.254
Control typology	Local demand control
Maximum internal leakage rates (%)	2.7
Maximum external leakage rates (%)	2.7
Declared typology	RVU BVU
Sound power level (dB(A))	49
The annual electricity consumption (AEC) (kWh/a)	Cold		Average		Warm
	716		179		134
The annual heating saved (AHS) (kWh/a)	Cold		Average		Warm
	9019		4610		2085

Datasheet

"VENTS VUT/VUE VB EC" product description 04-2024

3.79 Mb

Manual

"VENTS VUT/VUE 160/350/550 V(B) EC A14/A21" user's manual 09-2024 (V239EN-01)

3.22 Mb

Manual

"Sensor control panel A14/A15" user’s manual 07-2024 (V55-7EN-02)

1.21 Mb

Manual

"Modbus table for connecting A21 automation to BMS" user’s manual 09-2022 (V55-8-1EN-02)

167 Kb

Manual

"Wireless control system A21" user’s manual 02-2023 (V55-8EN-05)

504 Kb

Manual

"VENTS VUT/VUE 250 VB(E) EC L/R" user's manual 05-2024 (V240EN-04)

2.56 Mb

BIM/CAD models

VUT/VUE 250 VB(E) EC

1.26 Mb

BIM/CAD models

VUT/VUE 160/350/550 VB EC

1.28 Mb

Image

VUT 350 VB EC A21 - image 1

453 Kb

ØD	B	H	L
160	583	675	730

Control Panels for AHU

Name	Photo	Description
Vents A25		The control panel with a sensor display
Vents A22 WiFi		The A22/A22 WiFi control panels are used for control of industrial and domestic air handling units with an A21 automation system.
Vents A22		The A22/A22 WiFi control panels are used for control of industrial and domestic air handling units with an A21 automation system.

Sensors

Name	Photo	Description
Vents HV2		Humidity sensor
Vents CO2-1		CO2 sensors
Vents CO2-2		CO2 sensors
Vents DPWC11200		Humidity sensor
Vents HR-S		Electro-mechanical humidistats

VOC sensors

Name	Photo	Description
Vents DPWQ40200		CO2 sensor
Vents DPWQ30600		VOC sensors

Electrical heaters

Name	Photo	Description
Vents NKP 160-0,8-1 A21 V.2		Heater for heat exchanger freeze protection
Vents NKP 160-1,2-1 A21 V.2		Heater for heat exchanger freeze protection
Vents NKP 160-1,7-1 A21 V.2		Heater for heat exchanger freeze protection
Vents NKP 160-2,0-1 A21 V.2		Heater for heat exchanger freeze protection
Vents NKD 160-0,8-1 A21 V.2		Duct heater for supply air post-heating with external control
Vents NKD 160-1,2-1 A21 V.2		Duct heater for supply air post-heating with external control
Vents NKD 160-1,7-1 A21 V.2		Duct heater for supply air post-heating with external control
Vents NKD 160-2,0-1 A21 V.2		Duct heater for supply air post-heating with external control

Condensation drainage

Name	Photo	Description
Vents SH-32		The hydraulic U-trap for condensate drainage from heat exchangers and coolers in ventilation and air conditioning systems

For round ducts

Name	Photo	Description
Vents KRV 160		Air damper for air flow cut-off in round air ducts

Electric actuators

Name	Photo	Description
Vents Belimo LF230		The Belimo LF series actuators are designed for controlling air dampers with cross section up to 0.8 m² performing protection functions

Other accessories

Name	Photo	Description
Vents SF 500x196x40 F7		F7 panel filter
Vents SF 500x196x40 G4		Panel filter G4

Flanges

Name	Photo	Description
Vents KH-1		The kitchen exhaust hood is designed to clean air from combustion products, fumes, odors that form during cooking in the kitchen