{"id":2458,"date":"2026-10-21T20:54:35","date_gmt":"2026-10-21T12:54:35","guid":{"rendered":"https:\/\/hzgaozhen.com\/en\/?post_type=product&p=2458"},"modified":"2026-10-21T21:19:38","modified_gmt":"2026-10-21T13:19:38","slug":"gzd-ceiling-mounted-dehumidifier","status":"publish","type":"product","link":"https:\/\/hzgaozhen.com\/en\/products\/gzd-ceiling-mounted-dehumidifier\/","title":{"rendered":"GZD Ceiling-Mounted Dehumidifier"},"content":{"rendered":"

GZD Ceiling-Mounted Dehumidifier<\/h2>\n

Product Overview<\/h2>\n

The GZD Ceiling-Mounted Dehumidifier is a ducted refrigerant dehumidifier designed to control excess moisture while keeping floor space available. Installed above the ceiling and connected to return- and supply-air ducts, the unit draws humid air from the space, removes moisture, and returns drier air to the room.<\/p>\n

The GZD series includes six models with listed dehumidification capacities from 25 to 480 L\/day and airflow from 280 to 5,600 m\u00b3\/h. Use the model data below as a preliminary reference. Final selection should consider moisture load, operating conditions, duct resistance, drainage, installation access, and site power.<\/p>\n

Main Specifications<\/h2>\n
\n\n\n\n\n\n<\/colgroup>\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Compact Models: GZD-251B \/ GZD-551B \/ GZD-951B<\/td>\n<\/tr>\n
Parameter<\/td>\nGZD-251B<\/td>\nGZD-551B<\/td>\nGZD-951B<\/td>\n<\/tr>\n
Recommended Coverage Area*<\/td>\n15\u201330 m\u00b2<\/td>\n30\u201355 m\u00b2<\/td>\n80\u2013110 m\u00b2<\/td>\n<\/tr>\n
Dehumidification Capacity**<\/td>\n25 L\/day<\/td>\n55 L\/day<\/td>\n95 L\/day<\/td>\n<\/tr>\n
Process Airflow<\/td>\n280 m\u00b3\/h<\/td>\n670 m\u00b3\/h<\/td>\n1,050 m\u00b3\/h<\/td>\n<\/tr>\n
Rated Power<\/td>\n0.19 kW<\/td>\n0.8 kW<\/td>\n0.98 kW<\/td>\n<\/tr>\n
Power Supply<\/td>\n1 Ph \/ 220 V \/ 50 Hz<\/td>\n1 Ph \/ 220 V \/ 50 Hz<\/td>\n1 Ph \/ 220 V \/ 50 Hz<\/td>\n<\/tr>\n
External Static Pressure<\/td>\n50 Pa<\/td>\n70 Pa<\/td>\n70 Pa<\/td>\n<\/tr>\n
Supply Air Outlet<\/td>\n\u00d8100 mm<\/td>\n\u00d8150 mm<\/td>\n\u00d8200 mm<\/td>\n<\/tr>\n
Return Air Inlet<\/td>\n\u00d8150 mm<\/td>\n\u00d8150 mm<\/td>\n\u00d8250 mm<\/td>\n<\/tr>\n
Overall Dimensions (W \u00d7 D \u00d7 H)<\/td>\n680 \u00d7 320 \u00d7 210 mm<\/td>\n830 \u00d7 490 \u00d7 375 mm<\/td>\n900 \u00d7 565 \u00d7 450 mm<\/td>\n<\/tr>\n
Approx. Net Weight<\/td>\n18 kg<\/td>\n35 kg<\/td>\n53 kg<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
\n\n\n\n\n\n<\/colgroup>\n\n\n\n\n\n\n\n\n\n\n\n\n\n
High-Capacity Models: GZD-7S \/ GZD-10S \/ GZD-20S<\/td>\n<\/tr>\n
Parameter<\/td>\nGZD-7S<\/td>\nGZD-10S<\/td>\nGZD-20S<\/td>\n<\/tr>\n
Recommended Coverage Area*<\/td>\n120\u2013160 m\u00b2<\/td>\n180\u2013260 m\u00b2<\/td>\n330\u2013450 m\u00b2<\/td>\n<\/tr>\n
Dehumidification Capacity**<\/td>\n180 L\/day<\/td>\n240 L\/day<\/td>\n480 L\/day<\/td>\n<\/tr>\n
Process Airflow<\/td>\n2,500 m\u00b3\/h<\/td>\n2,800 m\u00b3\/h<\/td>\n5,600 m\u00b3\/h<\/td>\n<\/tr>\n
Rated Power<\/td>\n2.7 kW<\/td>\n4.3 kW<\/td>\n8.5 kW<\/td>\n<\/tr>\n
Power Supply<\/td>\n1 Ph \/ 220 V \/ 50 Hz<\/td>\n3 Ph \/ 380 V \/ 50 Hz<\/td>\n3 Ph \/ 380 V \/ 50 Hz<\/td>\n<\/tr>\n
External Static Pressure<\/td>\n105 Pa<\/td>\n135 Pa<\/td>\n135 Pa<\/td>\n<\/tr>\n
Supply Air Outlet<\/td>\n540 \u00d7 430 mm<\/td>\n540 \u00d7 430 mm<\/td>\n1,000 \u00d7 520 mm<\/td>\n<\/tr>\n
Return Air Inlet<\/td>\n540 \u00d7 430 mm<\/td>\n540 \u00d7 430 mm<\/td>\n1,000 \u00d7 520 mm<\/td>\n<\/tr>\n
Overall Dimensions (W \u00d7 D \u00d7 H)<\/td>\n1,050 \u00d7 700 \u00d7 600 mm<\/td>\n1,050 \u00d7 700 \u00d7 600 mm<\/td>\n1,280 \u00d7 1,100 \u00d7 700 mm<\/td>\n<\/tr>\n
Approx. Net Weight<\/td>\n109 kg<\/td>\n118 kg<\/td>\n210 kg<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

* Coverage area is a preliminary guide for a ceiling height of 2.8\u20133.5 m. ** Capacity is listed at 30\u00b0C \/ 80% RH. Confirm the applicable test standard and project conditions during selection.<\/em><\/p>\n

General Technical Data<\/h3>\n\n\n\n\n\n\n\n\n\n\n
Parameter<\/strong><\/td>\nSpecification<\/strong><\/td>\n<\/tr>\n
Operating temperature range<\/td>\n5\u201338\u00b0C<\/td>\n<\/tr>\n
Maximum remote control cable length<\/td>\nGZD-251B: 30 m; GZD-10S: 50 m<\/td>\n<\/tr>\n
Filter<\/td>\nG4 coarse filter (listed)<\/td>\n<\/tr>\n
Compressor brands<\/td>\nPanasonic \/ Daikin \/ LG (listed options)<\/td>\n<\/tr>\n
Compressor restart delay<\/td>\n3 minutes<\/td>\n<\/tr>\n
Ingress protection rating<\/td>\nIPX4 (as listed)<\/td>\n<\/tr>\n
Packaging<\/td>\nWooden case<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Product Features<\/h2>\n

Ceiling-Mounted, Duct-Connected Design<\/h3>\n

The ceiling-mounted arrangement helps preserve usable floor area. Return and supply air connections let the unit integrate with a project duct system. Check ceiling clearance, service access, duct dimensions, and condensate drainage before installation.<\/p>\n

Six Capacity Options<\/h3>\n

Choose from six models covering listed capacities of 25\u2013480 L\/day and airflow of 280\u20135,600 m\u00b3\/h. Coverage figures are intended for initial model comparison; actual sizing depends on moisture load, ventilation, temperature, humidity target, and room construction.<\/p>\n

Airflow and External Static Pressure Selection<\/h3>\n

Each model has a specified airflow and available external static pressure. Match these values to the duct layout and system resistance to support the required air distribution.<\/p>\n

Model-Specific Power Supply<\/h3>\n

GZD-251B, GZD-551B, GZD-951B, and GZD-7S are listed for 1 Ph \/ 220 V \/ 50 Hz. GZD-10S and GZD-20S are listed for 3 Ph \/ 380 V \/ 50 Hz. Confirm site power before ordering.<\/p>\n

How the Ducted Dehumidifier Works<\/h2>\n

Humid return air enters the unit through the return-air duct and passes through the refrigeration dehumidification section. Moisture condenses and is removed through the drain. The treated air is then supplied back to the space through the supply-air duct. The actual duct arrangement and drainage details should follow the approved project design and product documentation.<\/p>\n

Applications<\/h2>\n

The GZD Ceiling-Mounted Dehumidifier can be considered for commercial and industrial spaces where concealed installation and ducted air distribution suit the project, including workshops, warehouses, storage rooms, basements, archives, and equipment rooms. Confirm suitability against the required humidity target, ambient conditions, room load, ventilation strategy, and duct design.<\/p>\n

How to Select a GZD Model<\/h2>\n

For a technical recommendation, provide room length, width and height; target temperature and relative humidity; expected moisture load; required airflow; supply and return duct dimensions and approximate lengths; available static pressure; site voltage, phase and frequency; installation clearance; and condensate drain location. Coverage area alone is not sufficient to size a dehumidifier.<\/p>\n

Frequently Asked Questions<\/h2>\n

What is a ceiling-mounted dehumidifier?<\/h3>\n

It is a dehumidifier installed above or within a ceiling space. GZD models connect to supply and return ducts to treat air from the space and deliver drier air back.<\/p>\n

Is the GZD series a ducted dehumidifier?<\/h3>\n

Yes. The listed models have return-air inlets and supply-air outlets for duct connection. Confirm the connection arrangement and duct design for the selected model.<\/p>\n

What capacity test condition is listed?<\/h3>\n

The supplied specification lists dehumidification capacity at 30\u00b0C and 80% relative humidity. Confirm the rating method and operating conditions for your project.<\/p>\n

Can the GZD unit treat outdoor fresh air?<\/h3>\n

The available specifications describe return-air dehumidification and do not confirm an outdoor-air function. Share fresh-air requirements with our team for technical review.<\/p>\n

How can I request a quotation?<\/h3>\n

Send us your target model or moisture-removal requirement, room dimensions, target temperature and humidity, duct details, site power supply, quantity, destination, and certification requirements.<\/p>\n

Request a Technical Recommendation<\/h2>\n

Not sure which GZD model fits your space? Contact our team with your room conditions, duct layout, and power supply. We can help shortlist a model and review the key installation parameters.<\/p>\n","protected":false},"excerpt":{"rendered":"

The GZD Ceiling-Mounted Dehumidifier is a ducted refrigerant dehumidifier for commercial and industrial humidity control. Six models provide 25\u2013480 L\/day capacity with airflow up to 5,600 m\u00b3\/h.<\/p>\n","protected":false},"featured_media":2459,"template":"","meta":{"_uag_custom_page_level_css":""},"product_brand":[],"product_cat":[37],"product_tag":[884,270,885],"class_list":["post-2458","product","type-product","status-publish","has-post-thumbnail","product_cat-industrial-dehumidifier","product_tag-ceiling-mounted-dehumidifier","product_tag-commercial-dehumidifier","product_tag-duct-dehumidifier","first","instock","taxable","shipping-taxable","product-type-simple"],"uagb_featured_image_src":{"full":["https:\/\/hzgaozhen.com\/en\/wp-content\/uploads\/2026\/10\/codex-clipboard-fbe0befc-66fa-4023-bdbc-f8408b3420c5.webp",1122,1402,false],"thumbnail":["https:\/\/hzgaozhen.com\/en\/wp-content\/uploads\/2026\/10\/codex-clipboard-fbe0befc-66fa-4023-bdbc-f8408b3420c5-150x150.webp",150,150,true],"medium":["https:\/\/hzgaozhen.com\/en\/wp-content\/uploads\/2026\/10\/codex-clipboard-fbe0befc-66fa-4023-bdbc-f8408b3420c5-240x300.webp",240,300,true],"medium_large":["https:\/\/hzgaozhen.com\/en\/wp-content\/uploads\/2026\/10\/codex-clipboard-fbe0befc-66fa-4023-bdbc-f8408b3420c5-768x960.webp",768,960,true],"large":["https:\/\/hzgaozhen.com\/en\/wp-content\/uploads\/2026\/10\/codex-clipboard-fbe0befc-66fa-4023-bdbc-f8408b3420c5-819x1024.webp",819,1024,true],"1536x1536":["https:\/\/hzgaozhen.com\/en\/wp-content\/uploads\/2026\/10\/codex-clipboard-fbe0befc-66fa-4023-bdbc-f8408b3420c5.webp",1122,1402,false],"2048x2048":["https:\/\/hzgaozhen.com\/en\/wp-content\/uploads\/2026\/10\/codex-clipboard-fbe0befc-66fa-4023-bdbc-f8408b3420c5.webp",1122,1402,false],"woocommerce_archive_thumbnail":["https:\/\/hzgaozhen.com\/en\/wp-content\/uploads\/2026\/10\/codex-clipboard-fbe0befc-66fa-4023-bdbc-f8408b3420c5-400x500.webp",400,500,true],"woocommerce_thumbnail":["https:\/\/hzgaozhen.com\/en\/wp-content\/uploads\/2026\/10\/codex-clipboard-fbe0befc-66fa-4023-bdbc-f8408b3420c5-400x400.webp",400,400,true],"woocommerce_single":["https:\/\/hzgaozhen.com\/en\/wp-content\/uploads\/2026\/10\/codex-clipboard-fbe0befc-66fa-4023-bdbc-f8408b3420c5-600x750.webp",600,750,true],"woocommerce_gallery_thumbnail":["https:\/\/hzgaozhen.com\/en\/wp-content\/uploads\/2026\/10\/codex-clipboard-fbe0befc-66fa-4023-bdbc-f8408b3420c5-100x100.webp",100,100,true]},"uagb_author_info":{"display_name":"ginfreeman5","author_link":"https:\/\/hzgaozhen.com\/en\/author\/"},"uagb_comment_info":0,"uagb_excerpt":"The GZD Ceiling-Mounted Dehumidifier is a ducted refrigerant dehumidifier for commercial and industrial humidity control. Six models provide 25\u2013480 L\/day capacity with airflow up to 5,600 m\u00b3\/h.","_links":{"self":[{"href":"https:\/\/hzgaozhen.com\/en\/wp-json\/wp\/v2\/product\/2458","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/hzgaozhen.com\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/hzgaozhen.com\/en\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/hzgaozhen.com\/en\/wp-json\/wp\/v2\/media\/2459"}],"wp:attachment":[{"href":"https:\/\/hzgaozhen.com\/en\/wp-json\/wp\/v2\/media?parent=2458"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/hzgaozhen.com\/en\/wp-json\/wp\/v2\/product_brand?post=2458"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/hzgaozhen.com\/en\/wp-json\/wp\/v2\/product_cat?post=2458"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/hzgaozhen.com\/en\/wp-json\/wp\/v2\/product_tag?post=2458"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}