--- title: "Evaporative Air Cooler Series 23 Top Discharge" url: https://tiercooling.com/posts/evaporative-air-cooler-series-23-top-discharge/ date: 2025-12-22 modified: 2026-09-28 lang: en author: "info@tiercooling.com" description: "Current location: Home Evaporative Air Cooler Series 23 Top Air Discharge The full range of Rundongfang permanent magnet evaporative air coolers supports a customizable master-slave intelligent linked control system, a..." categories: - "News" image: https://tiercooling.com/wp-content/uploads/2026/09/news-852.jpg word_count: 2101 --- # Evaporative Air Cooler Series 23 Top Discharge - [ Current location: Home ](https://rundongfang.com/) - ![RDF-230B](https://rundongfang.com/wp-content/uploads/RDF-230B-768x768.jpg) ![RDF-230A](https://rundongfang.com/wp-content/uploads/RDF-230A-768x768.jpg) # Evaporative Air Cooler Series 23 Top Air Discharge The full range of Rundongfang permanent magnet evaporative air coolers supports a customizable master-slave intelligent linked control system, a patented product independently developed. Rundongfang provides customers with a 26000 air volume permanent magnet evaporative air cooler. Environmentally friendly air conditioners, also known as evaporative air coolers, water air conditioners, or water-cooled central air conditioners, are cooling and ventilation units that integrate cooling, ventilation, dust prevention, and odor removal. In addition to providing fresh air and lowering temperatures for factory workshops, public places, and commercial entertainment venues, environmentally friendly air conditioners have another key feature—energy saving and environmental protection! This is a brand-new green product with no compressor, no Freon, and no copper tubing. Its key components—the evaporative cooling pad (a multi-layer corrugated fiber composite) and the 1.1KW main motor—consume only 1/8 of the electricity of traditional central air conditioners, delivering truly substantial energy savings across all industries. 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Through the master unit’s touchscreen, it enables single-unit control, zoned control, and full control. The master and slave units communicate via the RS485 standard and support external temperature and humidity sensors for intelligent temperature and humidity control. It is ideal for large factories, warehouses, centralized control applications, and similar scenarios. ![](https://rundongfang.com/wp-content/uploads/rdf-tongfengjiangwen-2026-002.jpg) Fast startup and shutdown: At 1 minute per unit for powering on/off, switching 32 units on or off simultaneously saves 32 minutes. One-touch control of 32 units: Quickly adjust various operating modes such as ventilation, cooling, and oxygen enrichment, putting the era of single-unit control behind you. Easy troubleshooting: The intelligent cluster multi-unit control system features fault inspection indicators and automatic clearing functions, making faults easy to diagnose and improving maintenance efficiency. All-in-one versatility: The intelligent cluster multi-unit control system integrates 12 major functions into one unit, built with cutting-edge industry technology—safe, efficient, time-saving, and worry-free. ![](https://rundongfang.com/wp-content/uploads/rdf-tongfengjiangwen-jpg-2026-0007-1024x313.jpg) ![](https://rundongfang.com/wp-content/uploads/rdf-tongfengjiangwen-jpg-2026-0002.jpg) | Model | Voltage/Frequency (V/HZ) | Max Airflow (m3/h) | Rated Current (A) | Power (KW) | Overall Dimensions (mm) | Air Outlet Dimensions (mm) | Net Weight (KG) | Water Tank Capacity (L) | Controller Type | | ----- | -------------------------- | -------------------- | ------------------- | ------------ | ------------------------- | ---------------------------- | ----------------- | ------------------------- | --------------- | | RDF18A-11 | 380V/50HZ | 18000 | 2.8 | 1.1 | 1100*1100*1000 | 670*670 | 63 | 25 | LCD Panel | | RDF18A-11S | 380V/50HZ | 18000 | 2.8 | 1.1 | 1100*1100*1000 | 670*670 | 63 | 25 | LED Panel | | RDF18A/BT | 220V/50HZ | 18000 | 4.8 | 1.1 | 1100*1100*1000 | 670*670 | 63 | 25 | LCD Panel | | RDF18B-11 | 380V/50HZ | 18000 | 2.8 | 1.1 | 1100*1100*1000 | 670*670 | 64 | 35 | LCD Panel | | RDF18B-11S | 380V/50HZ | 18000 | 2.8 | 1.1 | 1100*1100*1000 | 670*670 | 64 | 35 | LED Panel | | RDF18B/BT | 220V/50HZ | 18000 | 4.8 | 1.1 | 1100*1100*1000 | 670*670 | 64 | 35 | LCD Panel | | RDF18C-11 | 380V/50HZ | 18000 | 2.8 | 1.1 | 1100*1100*1025 | 730*730 | 64 | 35 | LCD Panel | | RDF18C-11S | 380V/50HZ | 18000 | 2.8 | 1.1 | 1100*1100*1025 | 730*730 | 64 | 35 | LED Panel | | RDF18C/BT | 220V/50HZ | 18000 | 4.8 | 1.1 | 1100*1100*1025 | 730*730 | 64 | 35 | LCD Panel | - Unique high-density rare-earth permanent magnet inner rotor structure — never detaches, never demagnetizes. - Direct servo drive, brushless and quiet, maintenance-free, with no oil contamination. - Low power consumption, high power density, compact size, light weight, natural cooling, and low temperature rise. - Sealed structural design with IP64 protection rating. - Cools and ventilates a 100–150 m² workshop using only 1 kWh per hour. - Open-type hose water distribution tray system delivers even, smooth water flow. - Equipped with over/under-voltage, over-current, and phase-loss protection, plus automatic (manual) cleaning function. - Innovative speed regulation technology allows airflow adjustment according to actual needs. An industry-first reverse-rotation function enables the fan to switch instantly from air supply to exhaust mode. - Three discharge configurations — top, bottom, and side outlet — suit installation requirements in a wide variety of environments. - Made of eco-friendly PP engineering plastic: anti-aging, UV-resistant, with a long service life. ![](https://rundongfang.com/wp-content/uploads/rdf-tongfengjiangwen-jpg-2026-0011.jpg) ![](https://rundongfang.com/wp-content/uploads/rdf-tongfengjiangwen-jpg-2026-0008.jpg) The core cooling component of Rundongfang air conditioners is a high-efficiency evaporative cooling pad — a “natural multi-layer corrugated plant fiber composite.” Based on the natural physical principle that “water evaporation absorbs heat, and evaporation area affects evaporation efficiency,” the fan delivers air indoors while fresh outdoor air passes through the water-soaked cooling pad. The air comes into full contact with the water and absorbs sensible heat from the air, achieving cooling, ventilation, dust removal, and increased indoor oxygen levels. It is especially suitable for high-temperature environments and densely populated places. Main application areas: Industrial: workshops of automotive plants, hardware factories, electronics factories, machinery plants, electrical appliance factories, motorcycle plants, leather goods factories, garment factories, pharmaceutical plants, textile mills, shoe factories, plastics factories, and more. Commercial: shopping malls, internet cafés, schools, bus stations, gyms, outdoor sports venues, restaurant kitchens, car washes, etc. Agricultural: agricultural-specific models for greenhouses, flower nurseries, livestock farms, and more. ![](https://rundongfang.com/wp-content/uploads/products-info-002.png) ### Low Investment, High Efficiency Compared with central air conditioning installed under the same conditions and area, the cooling equipment costs only a fraction of the total investment required for central air conditioning. ![](https://rundongfang.com/wp-content/uploads/products-info-004.png) ### Low Power Consumption, Only 1 kWh per Hour Installed over the same area as central air conditioning, the eco-friendly cooling equipment consumes only a fraction of the electricity required by central air conditioning. ![](https://rundongfang.com/wp-content/uploads/products-info-006.png) ### Excellent Air Quality “Rundongfang” integrates ventilation, air exchange, dust removal, and cooling in one unit, increasing the oxygen content of the space and improving work efficiency, with a free choice between natural air supply or spot cooling. ![](https://rundongfang.com/wp-content/uploads/products-info-005.png) ### Powerful Cooling Effect In southern regions, the unit generally achieves a cooling effect of 4°C-10°C, while in hot, dry regions it can achieve 4°C-15°C, with rapid cooling. ![](https://rundongfang.com/wp-content/uploads/products-info-007.png) ### Large Airflow, Long-Distance Air Delivery A large airflow of 18000 to 60000 m³ per hour, selectable according to customer requirements; our units feature high air pressure and long-distance air delivery. ![](https://rundongfang.com/wp-content/uploads/products-info-008.png) ### Stable Performance, Reliable Quality Equipped with 100mm-thick “5090 evaporative cooling pads” for strong cooling capacity, and three-blade forward-swept axial fan blades for low noise and high efficiency. ![](https://rundongfang.com/wp-content/uploads/products-info-003.png) ### Humidity Control Adjusts humidity in workplaces where increased air humidity is required. Air Change Rate Reference for Various Applications Definition of air change rate: Air change rate (changes/hour) = Total indoor air supply volume (m3/h) ÷ [Indoor area (㎡) × Indoor height (m)]; General environments require 30–40 air changes per hour; Crowded public places require 30–40 air changes per hour; Crowded, high-temperature locations or production workshops require 40–50 air changes per hour; High-temperature production workshops with severe pollution require 50–60 air changes per hour; In more humid southern regions, the air change rate should be appropriately increased, while in hotter northern regions it can be appropriately reduced. The calculation of the number of units depends on the type of air outlets required on site; Model and quantity selection is flexible according to site conditions; Number of units required = Site volume × Air change rate ÷ Actual air supply volume of the unit; Spot cooling should be selected separately according to actual conditions, and the total air volume can be appropriately reduced; Indoor air supply ducts must match the model of the air cooler. Based on the actual installation environment and the number of required air outlets, design suitable air supply ducts and outlets - Excellent cooling effect: quickly lowers indoor temperature - Excellent ventilation effect: effective ventilation and air supply, with high indoor oxygen content - Excellent odor removal: promptly eliminates and reduces odors - Excellent air purification: effectively removes airborne dust indoors - Excellent removal of harmful gases: rapidly reduces harmful substances indoors ![](https://rundongfang.com/wp-content/uploads/products-info-009.png) ![](https://rundongfang.com/wp-content/uploads/rdf-tongfengjiangwen-jpg-2026-0009.jpg) High evaporation efficiency: The heat exchange area is approximately 100 times the surface area, with excellent water absorption and an evaporation efficiency of over 80%, resulting in superior cooling performance. Low air resistance: The multi-layer composite structure and special bonding angles minimize air resistance, delivering large airflow and long-distance air delivery. Excellent antibacterial performance: Tested by authoritative institutions, it effectively inhibits bacterial growth and keeps the air fresh and natural. Algae growth prevention: Tested by professional institutions, it achieves Grade I anti-algae performance and effectively prevents algae growth. Healthy and eco-friendly: Compliant with RoHS and REACH environmental standards, free of toxic substances that may cause allergies, non-toxic and odorless. Durable and long-lasting: Tested by authoritative institutions, it is corrosion-resistant, easy to clean, and has a long service life. ![](https://rundongfang.com/wp-content/uploads/products-info-011.png) #### 6T Operating System High-efficiency thickened cooling pad design Polymer materials with spatial cross-linking technology: sturdy texture, eco-friendly, pollution-free, easy to clean, free of pungent odors, and non-toxic and harmless to the human body; multi-layer corrugated evaporative cooling pads provide a heat exchange area nearly 100 times the surface area; with a pad thickness of 100mm, the large contact area delivers higher evaporation efficiency and better cooling performance. Innovative inverter control design 220V variable frequency speed control technology with soft start and stable operation. Anti-drip streamlined grille design The grille features an eave-shaped anti-drip design that effectively prevents rainwater from entering, ensuring safe use. Multi-stage anti-clog filter design The filter adopts a multi-stage anti-clog design with an increased filtration area for greater efficiency and cleanliness. Low-failure, high-humidity-resistant motor High efficiency, low noise, and longer service life; cast iron housing with good heat dissipation and low energy consumption; Low-failure, high-humidity-resistant, corrosion-resistant all-copper core motor for stable operation. CFD-based fluid dynamics design Large air volume, higher air pressure, quieter operation, and low energy consumption; Air duct design based on simulated airflow fields greatly reduces air resistance and noise. ![](https://rundongfang.com/wp-content/uploads/products-info-013.png) #### 6P Super Purification System High-efficiency eco-friendly odorless cooling pad Polymer materials with spatial cross-linking technology: sturdy texture, non-toxic, harmless, and odorless. Excellent filtration performance, large evaporation capacity, great cooling effect, and easy to clean. High-efficiency multi-stage anti-clog filter design Multi-stage anti-clog filter design with multiple layers effectively filters dust, particles, and more. Open-type hose water distribution tray system Brand-new water distribution components with a unique water storage tank design ensure even water distribution and never clog. Multi-stage cleaning function design Cleaning functions are available both at startup and shutdown for more thorough cleaning. High-quality durable water pump design Wide-voltage, wide-frequency, high-efficiency, wear-resistant premium water pump with stable water pressure and low temperature rise. 24-hour continuous operation The water pump uses an all-copper wire motor with low noise, low vibration, fast heat dissipation, stable temperature rise, long life, and few failures. Energy-free automatic water replenishment design Featuring an energy-free buoyancy-based automatic water replenishment system with ultra-low failure rate and high stability, rated for 100,000 cycles, and easier maintenance. ![](https://rundongfang.com/wp-content/uploads/products-info-012.png) #### 6D 3D Protection System High-Strength Weather-Resistant Housing Design The housing is made of weather-resistant polymer with UV resistance, corrosion resistance, anti-aging and anti-deformation properties. Innovative PVC Cooling Pad Edge-Sealing Design More reliable fixing that is less likely to fall off; will not damage the cooling pad surface, with no risk of water leakage. High-Strength Column Design The unit features a high-strength column design with a solid structure, high strength and strong load-bearing capacity. One-Piece Molded Chassis Design Adopts a one-piece molded, inclined design with high strength and excellent cleaning performance. User-Friendly Handle Design on the Bottom Basin The handle position fits common hand shapes, with a smooth contact surface for convenient and safe handling. Sturdy and Durable Motor Bracket Design The motor bracket is made of sturdy, durable cast iron with strong torsion resistance and no resonance noise, ensuring reliable operation and longer service life. The bolts fixing the motor bracket to the chassis use copper-embedded integral injection-molded punched holes for a firmer connection, greater safety, longer durability, and easier maintenance.