. Catalog Diffusers Swirl diffusers ORION-LØV / SIRIUS COMFORT


Wester_m 15.03.2024


Sirius Comfort is a diffuser with VAV and heating functions. It is used as a volume controller and diffuser in forced ventilation systems. Sirius Comfort has unique characteristics that are well suited to variable air flows and contribute to very good valve induction.


With heating coil for water heating of intake air
Unique damper function
Large operating range
Belimo MP Bus
Belimo KNX


Sirius Comfort is a comprehensive measuring and control device for controlling air flows in a ventilation system according to needs. The measuring station measures the pressure difference using measuring rods built into the unit. The unit is equipped with a VAV LHV-D3 regulator from Belimo. The controller specifications are shown in the table below. Full technical documentation can be downloaded from www.belimo.eu. Orion-LØV has a removable front panel with LØV perforations and can be supplied adapted to different types of ceiling systems. The water side pipe connection is supplied as standard with a smooth pipe Ø15. They can also be ordered with 1/2″ internal or external threads.

Materials and design

Sirius Comfort is made of galvanized steel. The measuring cross is made of aluminum, hoses and nipples are made of plastic. The damper has an attached polyester fabric. The pipe has a rubber seal made of EPDM. The heating coil is made of copper and aluminum.


The Orion-LØV valve can be installed in various types of suspended ceilings or in a permanent ceiling. The Sirius Comfort uses a hanger bracket on the rear edge with a threaded rod or strap, see Figure 4. A hanger bracket is used to connect the two components, as shown in Figure 7. This is positioned against the side of the stationary camera and secures with a mounting screw.

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