Ceiling dehumidifiers
Concealed units that save floor space, with duct-connected supply for even humidity across a room.
DVD-30
30 L/day
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DVD-60
60 L/day
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DVD-90
90 L/day
Learn moreDVD-138
138 L/day
Learn moreDVD-240
240 L/day
Learn moreDVD-480
480 L/day
Learn moreDVD-720
720 L/day
Learn moreCeiling dehumidifiers in detail
Concealed units that save floor space, with duct-connected supply for even humidity across a room.
- Concealed installation without occupying floor space
- Turbo fan with large airflow and full-copper sealed motor
- Duct-connected supply to remove dead zones
- Slim body sized for standard ceiling heights
Enquiries are answered within one business day.
The 30 – 720 L/day range in this catalogue is not a menu of sizes: each frame changes the working surface, the airflow and the volume of water the unit has to handle, so the moisture load picks the frame rather than the floor area. DVD-30 at 30 L/day is the smallest published frame here and DVD-720 at 720 L/day is the largest. 7 models are published in the range, and each one is quoted against the condition it will actually see rather than the headline figure.
Void depth, service access and the drain fall are settled before the ceiling grid is set out. A unit that fits the duty but not the void is the most common reason a ceiling project is re-quoted, so the drawing is checked against the frame first.
If the answer is a different platform, the selection check says so, with the calculation that led there.
Ducted supply and available static pressure
A ducted dehumidifier is specified by the pressure it can work against, not only by its litres per day. Supply and return duct runs, grille sizes and filter pressure drop all consume available static, so a long run to the far end of a car park or a hall is checked against the fan curve before the frame is fixed.
In a commercial ducted installation the cabinet is hung in the ceiling void or a false ceiling, with the service panel beside it and either a gravity drain or a lift pump. The largest frames, at 720 L/day, are the ones usually quoted for multi-level car parks and long storage halls where one plant room serves several duct runs.
Where ceiling dehumidifiers are used
Ceiling dehumidifiers are installed in the void above the room and deliver treated air through ducts, so the floor stays clear. The DVD range runs from 30 to 720 L/day for halls, car parks, storage rooms and technical areas, mounted in a ceiling void or false ceiling and connected to ductwork where the room is longer than the throw of the fan.
Further reading
Ceiling dehumidifier questions
Does a ceiling unit need a condensate pump?
It needs either a gravity drain or a lift pump, depending on the ceiling void and the drain position. This is decided on the installation drawing before the unit is ordered.
How is a concealed unit serviced?
Through a service panel beside the unit for filter cleaning and access to the fan and coil. The panel size and position are part of the drawing set.
Can one unit serve more than one room?
Yes, with supply and return ducts, provided the available pressure covers the duct run and the rooms share the same humidity target.
Can a ceiling dehumidifier be installed in a false ceiling?
Yes. The cabinet is hung in the void with a service panel beside it, and the void depth is checked against the cabinet height before the ceiling grid is set out. Where the void is shallow, a ducted connection can move the unit to a plant room.