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  • Description
  • Characteristics
  • Capacity diagram
  • Downloads
  • Dimensions
  • Additional characteristics
  • Designation key
  • Accessories
  • The PA unit is a ready to use ventilation unit for air filtration, warming and supply to the room.

  • Steel casing covered with aluzinc coating internally filled with 50 mm heat- and sound-insulating layer made of mineral wool.

  • Integrated panel G4 filter ensures sufficient supply air purification (optionally F7).

  • The PA units are equipped with electric (PA…E model) or water (PA…W model) heater.
  • The unit is equipped with a direct-driven centrifugal fan with backward curved blades and external rotor motor.

  • The fan configuration ensures the best operating characteristics: high air capacity and efficiency combined with low noise level.
  • The unit is designed for indoor installation either on the floor, on the wall or under the ceiling by means of a seat angle with inserted vibration-damping element or attached to a wall with brackets.

  • The unit can be mounted either in service spaces or in main premises above the suspended ceiling, in the pocket or the unit can be placed directly in the room.

  • All the electrical connections are performed through the terminal box placed in the connection box. 

  • PA supply units are supplied with the fastening brackets to facilitate mounting.

  • The unit can be mounted in any position but the vertical one with vertical air downstream because the electrical heating elements are not allowed under the fan.

  • Access for the unit maintenance and filter cleaning shall be provided.

  • The supply units are available in two modifications:
    • No control and automation system supplied. Customer-defined and customer-selected control automation system.
    • Integrated control and automation system for speed (air capacity) control and setting supply air temperature. The unit may be remotely controlled from the external control panel fixed on wire.
PA…E control and protection functions
  • control from the control panel: switching the unit on/off, fan speed selection (low/medium/high speed), selecting heating/cooling modes (if connected to duct heater);
  • maintaining supply air temperature set from the control panel by smooth heating capacity control;
  • smooth frequency speed control of the fan;
  • safe start-up/shutdown of the fans;
  • active overheating protection of the electric heating elements by the temperature sensor and by the thermostats activated at 60 °C with automatic reset and at 90 °С with manual reset. Blowing of the electric heating elements for heat removal at the end of the heating cycle;
  • Filter clogging control with differential pressure sensor;
  • actuating the external air damper;
  • input from the fire alarm system;
  • control of the compressor and condensing block of the water cooler by the room temperature sensor (for models with external duct air cooler);
  • maintaining of set supply air temperature set from the control panel by smooth heating capacity control;
  • smooth frequency fan speed control.
Parameter PA 02 E
Measurement unit
Frequency 50 Hz
Phase 3 ˜
Engine Type 380В / 50Гц -
Voltage 400 V
Maximum fan power 620 W
Fan current 1.05 A
Electric heater power 18000 W
Air capacity 2500 m³/h
Electric heater current Electric heater current 26 A
Total unit current 27.05 A
Maximum air capacity 2500 m³/h
Total unit power 18620 W
RPM 2690 min-1
Filter panel filter G4 -
Transported air temperature -25 ... +45 °С
Sound pressure level at 3 m distance 54 dBА
Casing material aluzinc -
Heating electric heating -
Insulation 50 mm mineral wool -
Width 500 mm
Connected air duct diameter 500х300 mm
Mass 61 kg
Height 300 mm
Duct for rectangular air ducts -
Capacity diagram
Capacity diagram
  • Selection method:
  • Air flow:
  • Pressure:
Operating point
  • Air flow: --
  • Pressure: ---
Files archieve
Brochure "VENTS PA...E, PA...W" (pdf 5.07Mb)
Download high quality image "VENTS PA...E (ErP 2016, 2018)" (psd 3.74Mb)
User's manual "VENTS PA...E. Unit without automation block" (pdf 570.18Kb)
User's manual "Control system for air supply and air handling units based on Freemax controllers and AC208A2 sensor control panels" (pdf 7.21Mb)
Download image "VENTS PA...E (ErP 2016, 2018)" for your website (png 229.93Kb)
Parameter Value Measurement unit
B 500 mm
B3 646 mm
B1 520 mm
L 1250 mm
H 300 mm
L1 1212 mm
H2 447 mm
B2 689 mm
H1 320 mm
Additional characteristics
Additional characteristics
Sound-power level Gen Octave-frequency band [Hz]
63 125 250 500 1000 2000 4000 8000
LWA to inlet dBA 70 52 67 67 60 55 51 53 49
LWA to outlet dBA 84 56 70 81 77 76 74 74 70
LWA to environment dBA 55 35 57 62 52 48 54 52 53
Designation key
Designation key
Series Unit standard size Heater type Integrated control system
VENTS PA  01; 02; 03; 04 Е: electric _: no control system
LCD: integrated automation with A16 (PA..E) or A13 (PA..W) control panel  
Type G4 replaceable filter Filter type
PА 01 Е SF PА/VА 01 Е G4 panel filter
PА 02 Е SF PА/VА 02 Е G4 panel filter
PА 03 Е SF PА/VА 03 Е G4 panel filter
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