The Swegon CLASS UNIT air handling units is an efficient and robust units, designed for classroom applications. This decentralized solution is very easy to install on walls and is suitable for school renovation.

  • Integrated TAC5 controls
  • Temperature efficiency, heat recovery up to 86%
  • Air flows up to 1000 m³/h or 270 l/s

PX: Plate heat exchanger

                Class Unit PX     
          Class Unit
Exhaust air  Supply air  
Outdoor air   Extract air  

Brilliant Simplicity – in every step

  • Selection: The Class Unit has a straight forward article number; one for right-hand units and one for left-hand units. Other parts, like post-heating coils, dampers or outdoor mounting kits are easily selected as accessory for each unit.
  • Offer and Order: You can quickly get an offer for any of the CLASS UNIT air handling units from your local sales representative who will also assist you in taking care of your order.
  • Delivery: Units and accessories are delivered ex-works within 15 working days.
  • Start-up and commissioning: One piece units, no mechanical assembly besides accessories and duct work is required on site. Start-up and commissioning is done quickly, due to the build-in TAC5 control on board the CLASS UNIT  that includes different running modes and time clocks
  • Usage and Service: Once commissioned the CLASS UNIT air-handling unit do not require much attention. Since all fans are direct driven there are no pulleys and belts and standard maintenance procedures such as change of filters are indicated by a service alarm.

Highly efficient heat exchangers

The highly efficient, Eurovent certified counter-flow heat exchangers. They facilitate supply temperatures and permit or allow transfer of humidity between the two airflows. The exchangers are in “salt-air resistant” aluminium and are suitable for temperatures up to 80°C. They are compliant with the DIN1946 tightness standard and are Eurovent approved according to the EN 308 standard.

Counter-flow heat exchanger (PX)

PX flow

Counterflow plate heat exchangers consist of thin aluminium plates that form parallel air ducts arranged at opposite angles to one another. The warmer extract air heats the plates and transfers heat to the colder supply air. The contact surfaces are large because the air streams flow in parallel and in opposite directions. Temperature efficiency is as high as 83 %. The supply air and extract air have completely separate air passages therefore any possible odours in the extract air cannot be transferred to the supply air. The heat exchanger does not recover moisture to supply air, which is good in facilities with high humidity levels.

Installers choice for 40 years

Focussing on installation cost for projects with small to medium air volumes, short delivery times, off-the-shelf products with easy to use controls for start-up, commissioning.



Class Unit

  = Standardudstyr

  = Tilbehør


Air Volume 100-1000m³/h
Inspection side under
Counterflow heat exchanger
Rotary heat exchanger -
Can also be used outside -
Filter Class (supply  / extract) M5/M5(F7)
Filter kit replacement article number 510114
Filter type  Pleated
Filter size in mm and amount (per air direction)

410 x 500 x 50

Free cooling ; Full or (Partial)
External pre- / post heating  or cooling (Water/DX)
Internal max pre heater (electrical) -
Internal max post heater  3kW/Electric
External dampers
Connection power (without acessories) 3800 W
Power connection 230 V, 50 Hz, 16 A
maximum current without accessories 16A (Electrical coild included)
Motorization Variable speed drive
Heat exchanger
efficiency W.B./D.B. (EN 308)
90,6 / 81%
SFP int (W/(m³/s)) 1148
Casing radiated sound power level    (LWA) in dB(A) 57
Heat exchanger
efficiency W.B./ reference airflow*
91,4 / 82,2%
SFP (kW/m³/s) at reference air volume* 1,27
Casing radiated sound power level dB(A) at reference air flow* 34.5***
Sound power level in supply duct dB(A) at reference air flow (without attenuators)* No ducting needed
Sound power level in supply duct dB(A) at reference air flow with attenuators (650mm/1250mm) * / ** No ducting needed
Weight without accessories (in/out) 213 kg
Duct connection (mm)  Ø 315
Unit size (L x W x H) 2056 x 980 x 460

* Reference air flow is 70% of maximum air flow with 100Pa external pressure drop
** Values with sound attenuators are based on  CADENZA 650mm and 1250mm duct silencers

***Sound level  for balanced for 70% max supply and exhaust airflows (calculated for supply ) without pressure loss. Measured at 1 meter below and 1 meter in front of the unit in a room where the reverberation time is 0,3s.



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 Class Unit PX EN.pdf Catalogue/Product sheets 481.75kB 11/24/2017 Add to bucket