KDK Ceiling Mount Exhaust Fan
KDK ceiling-mount exhaust fans are concealed ducted sirocco fans for bathrooms, toilets, hotel en-suites, utility rooms, and commercial restrooms. Compare Super Quiet, DC Motor, Metal, and Standard series for Saudi project selection and quotation.
Application & Safety Notice
Connect the fan to a correctly sized duct that discharges to an approved outdoor or building exhaust point; do not terminate exhaust into the false-ceiling void. These models are not commercial kitchen grease-hood fans, certified smoke-extract fans, hazardous-gas fans, or high-temperature exhaust fans. The KDK Metal Series uses metallic components in the air stream for additional fire-spread safety, but that statement must not be presented as smoke-control or fire-rated fan certification.
What is a KDK ceiling-mount exhaust fan?
A KDK ceiling-mount exhaust fan is a concealed sirocco ventilating fan installed above a false ceiling and connected to an exhaust duct. It is mainly used for bathrooms, toilets, hotel en-suites, and commercial restrooms. Select the model by airflow at the required static pressure, duct route, ceiling opening and depth, voltage and frequency, and the permitted noise level.
KDK Ceiling Mount Model Series
KDK ceiling-mount exhaust fans are grouped into Super Quiet, DC Motor, Metal, and Standard Large series. Model selection should confirm airflow at operating static pressure, duct size, voltage, ceiling opening, room type, and noise limits before quotation.
Published comparison airflow and sound values are catalogue values at 0 in. w.g. unless stated otherwise. Actual airflow changes as duct static pressure increases. Select the model from the full KDK performance table at the required operating point.
Super Quiet Series
Low-noise sirocco ceiling cassette models with resin louver and casing for residential and light commercial exhaust.
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| Model | Voltage / Frequency | Airflow at 0 in. w.g. | Noise at 0 in. w.g. | Watts (AMCA / IEC) | Duct / Catalogue Drawing | Best For |
|---|---|---|---|---|---|---|
| 17CUH | 220V 60Hz / 240V 50Hz | 44-51 CFM | 0.3 sone | 10W / 9.5-10W | Ø100 mm duct; 240 mm square grille | Compact bathroom or toilet exhaust |
| 24CUH | 220V 60Hz / 240V 50Hz | 83-89 CFM | 0.4-0.5 sone | 13W / 12-13.5W | Ø100 mm duct; 300 mm square grille | Standard bathroom and utility exhaust |
| 24CDH | 240V 50Hz | 106 CFM | 0.9 sone | 17W / 16.5W | Ø100 mm duct; 300 mm square grille | Medium-duty bathroom or toilet exhaust |
| 24CHH | 220V 60Hz / 240V 50Hz | 109-117 CFM | 1.0-1.2 sone | 21-22W / 19.5-20.5W | Ø100 mm duct; 300 mm square grille | Higher airflow restroom exhaust |
| 24CGH | 220V 60Hz / 240V 50Hz | 121-130 CFM | 1.7-2.1 sone | 27W / 25.5-26.5W | Ø100 mm duct; 300 mm square grille | Higher-airflow Super Quiet ceiling exhaust model |
| 27CHH | 220V 60Hz / 240V 50Hz | 182-198 CFM | 1.1-1.4 sone | 33-37W / 33-34W | Ø148 mm connection; 260 mm square opening | Large bathroom or commercial restroom |
| 32CDH | 220V 60Hz / 240V 50Hz | 226-257 CFM | 1.2-1.6 sone | 48-56W / 48-50W | Ø148 mm connection; 310 mm square opening | High-volume ceiling exhaust |
DC Motor Series
DC motor ceiling-mount models with low power consumption, intelligent airflow control, and selectable delay timer.
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| Model | Voltage / Frequency | Airflow at 0 in. w.g. | Noise at 0 in. w.g. | Watts (AMCA / IEC) | Duct / Catalogue Drawing | Best For |
|---|---|---|---|---|---|---|
| 24JRB | 220V 60Hz / 240V 50Hz | 88 CFM | 0.7 sone | 10W / 8W | Ø98 mm connection; 230 mm square body and 300 mm grille | Smart restroom ventilation with motion sensor & variable airflow |
| 24JAB | 220V 60Hz / 240V 50Hz | 88 CFM | 0.6 sone | 10W / 8W | Ø98 mm connection; 230 mm square body and 300 mm grille | Energy-saving ducted ceiling exhaust with constant airflow control |
Metal Series
Metallic components in the air stream provide additional safety against fire spread for commercial washrooms and consultant-specified spaces.
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| Model | Voltage / Frequency | Airflow at 0 in. w.g. | Noise at 0 in. w.g. | Watts (AMCA / IEC) | Duct / Catalogue Drawing | Best For |
|---|---|---|---|---|---|---|
| 24CMUA | 220V 60Hz / 240V 50Hz | 55 CFM | 0.3 sone | 13-14W / 12-13W | Ø98 mm connection; 300 mm square grille | Small commercial restroom exhaust with metal louver |
| 24CMHA | 220V 60Hz / 240V 50Hz | 94-108 CFM | 1.0-1.4 sone | 25-27W / 23-25W | Ø98 mm connection; 300 mm square grille | Commercial toilet or utility exhaust requiring metal construction |
| 27CMHA | 220V 60Hz / 240V 50Hz | 208-219 CFM | 1.6-1.9 sone | 46W / 43W | Ø148 mm connection; 270 mm square installation size | Larger commercial restroom or ducted ceiling exhaust requiring metal construction |
Standard Large Series
Large-capacity sirocco ceiling ventilating fan family (38CDG 05 / 38CDG) for spacious commercial restrooms, utility rooms, and public facilities.
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| Model | Voltage / Frequency | Airflow at 0 in. w.g. | Noise at 0 in. w.g. | Watts (AMCA / IEC) | Duct / Catalogue Drawing | Best For |
|---|---|---|---|---|---|---|
| 38CDG / 38CDG 05 | 220V 60Hz / 240V 50Hz | 344-387 CFM | 3.1-4.0 sone | 98-118W AMCA; 98W IEC at 220V 60Hz | Ø164 mm connection; 376 mm square casing and 450 mm grille | High-capacity commercial ceiling exhaust |
Ceiling cassette exhaust fan for quiet ducted ventilation
Choose a ceiling-mount model when the project requires a clean ceiling grille, a concealed fan body, and a ducted exhaust outlet. Unlike a wall-mounted fan, the air route passes through the ceiling void, so available depth, access, duct resistance, and the external discharge point must be checked before selection.
The Super Quiet series focuses on low noise and efficient sirocco fan performance for residential bathrooms, hotel guest rooms, toilets, and quiet occupied spaces. The DC motor series supports energy-saving operation with constant airflow control and sensor-based ventilation.
The Metal series is designed for commercial applications where metallic components in the air stream provide additional safety against fire spread. For Saudi Arabia projects, the correct model should be selected by CFM, external static pressure, duct route, ceiling opening, 60 Hz project voltage, and approval documents.
Key Features
KDK ceiling mount exhaust fans combine quiet operation, ducted outlet performance, and clean ceiling-side appearance.
Technical specifications
Final fan selection should confirm airflow, pressure, voltage, installation, accessories, and project approval requirements.
| Specification | Available Options / Details |
|---|---|
| Product Category | Ceiling Exhaust Fan |
| Product Type | Ceiling mount cassette ducted exhaust fan |
| Brand / Series | KDK Ceiling-Mount Type |
| Primary Fan Design | Tapered blade sirocco / centrifugal ventilating fan |
| Installation | False ceiling, gypsum ceiling, or modular ceiling tile application |
| Airflow Range | 44-387 CFM at 0 in. w.g. catalogue reference across 13 listed models |
| Voltage / Frequency | 220V 60Hz and 240V 50Hz catalogue references; select 60Hz for Saudi projects |
| Series Grouping | Super Quiet Series, DC Motor Series, Metal Series, Standard Large Series |
| Supported Models | 17CUH, 24CUH, 24CDH, 24CHH, 24CGH, 27CHH, 32CDH, 24JRB, 24JAB, 24CMUA, 24CMHA, 27CMHA, 38CDG |
| Duct Outlet | Model-specific catalogue connections: Ø98/Ø100 mm, Ø148 mm, or Ø164 mm; coordinate with the specified field duct |
| Construction | Resin louver/casing on Super Quiet and DC models; metallic air-stream components on Metal Series; confirm model-specific construction |
| Backdraft Protection | Integrated curve-shaped reverse-flow prevention shutter |
| Applications | Bathrooms, toilets, hotel en-suites, commercial restrooms, and light pantry/utility exhaust |
| Documentation | KDK catalogue, AMCA short catalogue, quotation, technical submittal, and compliance files on request |
Applications
Where KDK ceiling mount exhaust fans are usually requested by buyers and contractors.
What to Send for Correct Selection
For correct model selection, share the room type, required airflow at operating static pressure, ceiling opening cutout and depth, duct route, voltage, quantity, and project city. For consultant approval, send the required series name or model reference if already specified.
Accessories & Installation Items
Accessories depend on ceiling design, duct route, control method, and discharge point.
Documents and procurement files
Product and company documents can be shared for contractor, consultant, and procurement review.
Related ventilation products
KDK Ceiling Mount Exhaust Fan FAQ
Short answers for procurement teams, contractors, and MEP engineers selecting KDK ceiling cassette exhaust fans in Saudi Arabia.