AM 1000

Airmaster AM 1000 – perfect school ventilation. For classrooms and other large rooms with a high need for air replacement and a good indoor climate with low CO2 levels at all times.

AM 1000 is a competitive solution developed for ventilation in classrooms with high occupancy for long periods of time, but it can of course be used wherever there are high demands for comfort and a good indoor climate. AM 1000 meets current air quality and noise level requirements, i.e. roughly 950 m3/h and 30 dB(A) from the ventilation unit. At the same time, AM 1000 provides heat recovery of more than 80% and together with low power consumption, corresponding to an SFP value of around 700 J/m3, AM 1000 is a particular energy efficient and quiet ventilation solution. With built-in active sound attenuation, particularly low-frequency tones are attenuated, which usually requires a large attenuation area. AM 1000 has several sets of speakers and microphones built in which remove low-frequency and annoying noise by emitting “counter-noise”.

In rooms requiring the high level of air replacement that AM 1000 can provide, there may be a risk of draughts if the airflow is not controlled. In addition, for energy reasons, demand-control of the airflow is often required. As a result, a supply pattern optimised for one airflow is not necessarily the best for another.

That is why AM 1000 has an automatically adjustable supply – so-called Adaptive Airflow™. A supply diffuser (patent pending) on
the AM 1000 adjusts the supply pattern according to the airflow as well as the geometry of the room.

The basic idea behind the diffuser is that it is split in two so that the air exits the unit in two separate jets: The Adaptive Airflow principle utilises the ceiling and flow engineering principles to vary the supply pattern between larger and smaller airflows. This way, a constant throw over a large range can be maintained, and problems with draughts can be avoided.

Airmaster AM 1000 is available with various versions of wall, ceiling and side ducts, as well as combinations of these.

AM 1000 is delivered in four modules, making it easy to transport, handle and install.

Examples of applications

  • Classrooms
  • Offices
  • Meeting rooms
Data AM 1000


Filter class

30 dB(A)

35 dB(A)

Maximum capacity

ePM10 75%

ePM1 55%

ePM1 80%

950 m3/h

926 m3/h

903 m3/h

1050 m3/h

1024 m3/h

998 m3/h

Throw length (0,2 m/s)

10,5 m

10,5 m

Nominal current*

2,2 A

Nominal power consumption*

305 W

Electrical connection

3 x 400 V + N + PE / 50 Hz

Duct connections

Ø315 mm**

Condensate drain, int./ext.

Ø4/6 mm

Weight, standard unit complete

301,5 kg

Counterflow heat exchanger

2 x Aluminium

Supply air filter

ePM10 75%, ePM1 55% or ePM1 80%

Extract air filter

ePM10 75%

Colour, panel

RAL 9010 (white)

Power cable

5 x 2,5 mm2

Recommended fuse

3 x 13 A

Leakage current

<– 4 mA

Air leakage classification

Class L2 cf. EN 1886:2007

Class A1 cf. EN 13141-7:2010

Dimensions (WxHxD)

2325 x 561 x 1283 mm

* At filter class, supply air/extract air: ePM10 75% / ePM10 75% - ePM1 55% / ePM10 75% - ePM1 80% / ePM10 75%

** Horizontal supply/exhaust using Airmaster Boomerain® Ø315 or Ø400 mm wall grille.




Heat output

2300 W

1500 W

Thermal circuit breaker, aut. reset



Thermal circuit breaker, man. reset




Max. operating temperature


Max. operating pressure

10 bar

Heat output

2540 W*

Connection dimension

1/2" (DN 15)

Materials pipes/fins


Open/close time, motor valve

60 s

Standard and options

Standard and options

AM 1000



Adaptive Airflow

Electric preheating surface

Electric comfort heating surface

Water heating surface

CO2 sensor (built-in)

PIR/motion sensor (built-in)

Condensate pump

Motor driven exhaust air damper


Motor driven supply air damper


Counterflow heat exchanger (aluminium)


Wall / Ceiling frame


Energy meter

Boomerain Ø315

x : standard
: option

Throw length

Variable inlet with AM 1000. Inlet divided via two separate inlet grilles, each of which forms a stream. Both grilles have variable louvres. The streams achieve maximum spread at full airflow. This tends to cause a short throw length. The streams are concentrated together when a small airflow is used, which tends to cause a long throw length. Adjustment is gradual and automatic, based on the built-in flow metering. This method ensures an almost constant throw length adapted to the length of the room.

Symmetric mounting in the room with Adaptive AirflowTM

1. At maximum air volume with separate streams.
2. At minimum air volume with concentrated streams.

Asymmetric mounting in the room with Adaptive AirflowTM 

If the type of room or building only makes asymmetric mounting possible, we recommend to order a directional inlet grille. Use the following sketches as a guideline.

1. At maximum air volume with separate streams.
2. At minimum air volume with concentrated streams.

AM 1000 versions

Ready for a breath of fresh air

At Airmaster, we are “decentral” through and through. We are unrivalled when it comes to creating the best indoor climate and optimal well-being because we take each room and its occupants into account – and because we constantly strive to improve on what we do.