The type of cooling system that is integrated in the air handling unit

Cooling coil: Cooling with refrigerant. We also take care of the heat pump / cooling machine, including 3 meters of cooling pipework. With this option it is not possible to choose a Heating Coil for Heating.

Cooler: We provide a cooling battery and you provide the cooled water. Both with or without Ethylene Glycol (anti-freeze) is possible.

The type of heating system that is integrated in the air handling unit

Heating coil: We provide a heat battery and you provide the hot water. This option is not possible if you have selected Cooling Coil for Cooling.

Electrical heater: Electric heating in the airduct. Only available on certain units. With this option 230V and 400V must be installed by the installer.

The side of the machine where the control panel is attached. See also the picture.

Left: Looking from the outside air supply to the inside air exhaust, the control panel is on the left.

Right: Looking from the outside air supply to the inside air exhaust, the control panel is on the right.

The strategy with which the air handling unit is controlled:

Constant Pressure: A pressure sensor placed outside the AHU (supplied separately and to be installed by the installer) is connected to the control of the AHU. Based on the measured pressure, the control will speed up or down the fan to keep the set pressure constant. Good knowledge of the pressures in the duct system is required.

Constant Volume: The set air volume is kept intact by adjusting the AHU.

Single fan speed: The fan speed set by the fan controller is maintained. There is no airflow measurement. This must be done when setting the speed.

Air quality (CO₂): A CO₂ sensor placed in the room or in a duct (supplied separately and to be installed by the installer) is connected to the AHU control. Based on the CO₂ value measured by the sensor, the control will increase or decrease the speed of the fan.