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/ Product catalogue / Decentralized ventilation units / Decentralized HRU for residential and commercial buildings / Basic / Uni / Uni R A21

Vents Uni R A21

Vents Uni R A21 - Centralised ventilation unit for small apartments
Series: Uni
Centralised ventilation unit for small apartments
  • Maximum airflow: 160 m3/h
  • Sound pressure level LpA at 3 m: 33 dB(A)
  • Sound pressure level LpA at 1 m: 42 dB(A)
  • Heat exchanger type: Counter flow
  • Extract filter: Coarse 90% / G4
  • Supply filter: ePM1 70% / F7 (G4 option)
  • Sound insulation
  • Motor type: EC
  • Bypass: Auto
  • BMS protocol: ModBus
  • Control: Smartphone
  • Casing material: Galvanized steel
  • Humidity sensor: Optional
  • CO2 sensor: Optional
  • VOC sensor: Optional
  • PM2.5 sensor: Optional
  • Temperature sensor: Built-in
Unit of measurement Uni R A21
Connected air duct size mm 125
Minimum supply voltage V 230
Maximum supply voltage V 230
Power supply frequency Hz 50/60
Rated power W 58
Unit current A 0.5
Maximum airflow m3/h 60 90 160
Sound pressure level LpA at 3 m dB(A) 33
Sound pressure level LpA at 1 m dB(A) 42
Heat recovery efficiency, max % 95
Heat exchanger type - Counter flow
Heat exchanger material - Polystyrene
Weight kg 31
Extract filter - Coarse 90% / G4
Supply filter - ePM1 70% / F7 (G4 option)
Transported air temperature (max) °С 40
Transported air temperature (min) °С -25
Vents Uni R A21 44 125 2016
Trademark Vents
Model Uni R A21
Specific energy consumption (SEC) (kWh/(m2/a)) Cold Average Warm
-78.8 A+ -41 A -16.8 E
Type of ventilation unit Bidirectional
Type of drive installed Variable speed
Type of heat recovery system Recuperative
Thermal efficiency of heat recovery (%) 81
Maximum flow rate (m3/h) 125
Electric power input (W) 52
Reference flow rate (m3/s) 0.027
Reference pressure difference (Pa) 50
Specific power input (SPI) (W/(m3/h)) 0.271
Control typology Local demand control
Maximum internal leakage rates (%) 2.7
Maximum external leakage rates (%) 2.7
Airflow sensitivity at +20 Pa and -20 Pa (%) 0
Declared typology RVU BVU
Sound power level (dB(A)) 44
The annual electricity consumption (AEC) (kWh/a) Cold Average Warm
725 188 143
The annual heating saved (AHS) (kWh/a) Cold Average Warm
8817 4507 2038
Datasheet
"VENTS Uni" product description 02-2023
1.3 Mb
Manual
"VENTS Uni (Max)" user's manual 10-2024 (V231EN-02)
4.02 Mb
BIM/CAD models
Uni
659 Kb
Image
Uni R A21 - image 1
196 Kb
Other accessories
Name Photo Description
Vents SF 233x175x22 G4 SF 233x175x22 G4 Panel filter G4
Vents SF 233x175x22 F7 SF 233x175x22 F7 F7 panel filter
Control Panels for AHU
Name Photo Description
Vents A22 A22 The A22/A22 WiFi control panels are used for control of industrial and domestic air handling units with an A21 automation system.
Vents A22 WiFi 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 A25 A25 The control panel with a sensor display
Sensors
Name Photo Description
Vents HV2 HV2 Humidity sensor
Vents HR-S HR-S Electro-mechanical humidistats
Vents CO2-1 CO2-1 CO2 sensors
Vents CO2-2 CO2-2 CO2 sensors
Vents CO2-3 CO2-3 CO2 sensor
Vents DPWC11200 DPWC11200 Humidity sensor
VOC sensors
Name Photo Description
Vents DPWQ30600 DPWQ30600 VOC sensors
Vents DPWQ40200 DPWQ40200 CO2 sensor
Electrical heaters
Name Photo Description
Vents NKD 125-0,6-1 A21 V.2 NKD 125-0,6-1 A21 V.2 Duct heater for supply air post-heating with external control
Vents NKD 125-0,8-1 A21 V.2 NKD 125-0,8-1 A21 V.2 Duct heater for supply air post-heating with external control
Vents NKD 125-1,2-1 A21 V.2 NKD 125-1,2-1 A21 V.2 Duct heater for supply air post-heating with external control