MRDM Double Skin Modular Air Handling Unit Clean & Commercial AHU
1. Product Overview
MRDM double full thermal-break modular air handling unit (AHU) is standardized assembled central air main unit, airflow range 1198~146000 m³/h. Equipped with double-layer PU sandwich cabinet, it features low air leakage, superior thermal insulation, anti-condensation & easy-clean inner surface. All functional sections adopt standard 100mm modulus for free combination, supporting fresh air mixing, multi-stage air filtration, cooling/heating coils, various humidifiers, UV disinfection, silencer & variable frequency fan modules. It fits both ordinary commercial comfort HVAC and high-cleanliness industries such as pharmacy, operating rooms & electronic factories. The unit complies with EU EN1886 & national GB/T14294 standards, available in horizontal/vertical, indoor/outdoor versions. Professional selection software generates performance reports & assembly drawings to accelerate project design, widely applied in clean workshops, hospitals, office towers, shopping malls & exhibition halls.
2 Universal Basic Specification Table
Item | Standard Parameter |
|---|---|
Airflow Range | 1198 ~ 146000 m³/h |
Cabinet Panel Thickness | 30mm / 50mm high-density PU foam sandwich |
Max External Static Pressure | 2500Pa |
Cabinet Compliance | EN188 D1 deformation, TB1 thermal break, T2 insulation, L1 air leakage ≤1% |
Inner Wall Design | Arc corner, no dead space for dust accumulation |
Layout Mode | H Horizontal / V Vertical |
Installation Type | Indoor standard / W outdoor weatherproof |
Water Pipe Layout | L left connection / R right connection customizable |
Fan Control | DOL / Star-Delta / VFD variable frequency |
Coil Standard | AHRI410 certified mechanically expanded copper-aluminum coil |
3 Optional Standard Functional Sections Table
Section Name | Core Features & Options |
|---|---|
Mixing Box MB | Fresh & return air mixing, manual/electric air damper for energy recovery |
Split Section SS | Three-way ratio adjustment for fresh/return/exhaust air |
Primary Filter PF | G1-G4 grade filter, differential pressure gauge for blockage reminder |
Bag Filter BF | F5-F9 medium filter to capture PM2.5 fine dust |
HEPA Filter Section | H10-H14 high efficiency filter for pharmacy & OR |
Steam Heating SC | Steel fin steam coil, max working pressure 0.4MPa |
Cooling Coil CW | Multi-row coils with water baffle to prevent water drift |
Electric Heater EH | Stainless fin heating tube with overheat power-off protection |
Wet Film Humidifier SH | Natural evaporation, 80% saturation efficiency |
Electrode Humidifier | Pure steam output, 0-10V proportional signal control |
High Pressure Mist SPH | High pressure pump atomization for large space humidification |
Dry Steam Humidifier | Dry mist without water drop, best for cleanrooms |
UV Disinfection | UV lamp to eliminate coil bacteria, door interlock anti-radiation |
Silencer ATS | Porous sound-absorbing glass wool, low wind resistance noise reduction |
Supply SF / Return RF Fan | Forward/backward/plenum fan, VFD optional |
Maintenance CHS | Observation window, explosion-proof light & limit switch |
Diffusion / Exhaust DIS/EPT | Uniform air distribution damps for air outlet |
4 Eight Core Product Advantages
1 Full Thermal-Break Double Cabinet, Zero Outer Condensation
High-strength composite aluminum frame with plastic tee joggle full thermal break structure. 30/50mm integrated PU foam sandwiched between double color steel sheets. Arc inner wall eliminates dust dead angle. Cabinet deformation ≤4mm/m, air leakage ≤1%, no condensation & mold growth under high humidity environments like operating rooms & pharmaceutical workshops.
2 Freely Combinable Modular Design, Customized Without Redundancy
All sections follow unified 100mm modulus length, clients only select needed functions without full unit customization. If production process upgrades later, just replace single filter/humidifier section instead of whole AHU to cut renovation cost. Chinese & English selection software automatically generates performance datasheets & assembly drawings to shorten project cycle.
3 Full-Grade Filtration System From General To Class 100 Cleanroom
Complete filter range G1~H14. Differential switch reminds cleaning/replacement timely. Clean projects adopt primary + medium + HEPA triple filtration with UV sterilizer to restrain coil mold & airborne bacteria, meeting GMP standards for operating rooms & sterile pharmaceutical plants.
4 Multiple Temperature & Humidity Modules For All Working Conditions
Three cooling/heating solutions: chilled water coil, steam coil, electric heater. Four humidification types (wet film, electrode, high-pressure mist, dry steam) adapt dry northern, humid southern & constant temperature labs. All coils pass water pressure leak test before delivery, optional hydrophilic aluminum foil to reduce condensate splashing.
5 Diverse Fan & Control For Low / High Static Pressure
Forward, backward & plenum fans optional. Belt-driven plenum fans avoid secondary dust pollution, ideal for electronic clean workshops. 0.37~110kW motors support DOL, star-delta & VFD control. Variable frequency fans adjust airflow steplessly to save energy & reduce noise at night. Spring vibration dampers lower operation vibration greatly.
6 Multi Anti-Cleaning Structure For High Standard Environments
Full arc inner wall without sharp corners to prevent dust buildup. Maintenance door interlock cuts UV power automatically when opened to avoid radiation injury. Sloped drain tray fully covers coil area to stop stagnant water & bacterial growth, compliant with hygiene standards for pharmaceutical & food factories.
7 Indoor & Outdoor Dual Versions, Custom Water Pipe Layout
Standard indoor model for equipment rooms; W outdoor type with thick rainproof steel plate without dedicated machine room. Left/right water pipe layout customizable according site pipeline route, reducing elbow usage & construction period.
8 Global Standard Compliance For Domestic & Export Projects
Fully tested per EU EN1886 AHU standard & national GB/T14294 modular air handling norm, coils certified by AHRI410. Suitable for domestic commercial, industrial projects & overseas export engineering.
5 Main Application Scenarios
1 High Clean Medical & Pharmaceutical
Hospital operating rooms, ICU, PCR labs, sterile pharmaceutical workshops, biological reagent factories, equipped with HEPA filter & UV disinfection to meet GMP clean standards.
2 Electronic Precision Industry
Semiconductor, display chip & precision testing workshops. Dust-free plenum fan + constant temperature & humidity module prevents electrostatic damage to components.
3 Commercial Public Buildings
Large shopping malls, office towers, exhibition centers & hotels. Mixing section recycles waste heat for energy-saving comfort air conditioning.
4 Constant Temperature Special Spaces
Testing labs, constant temperature warehouses & food processing plants with stable long-term temperature & humidity control.
6 Installation & Maintenance Guidelines
Floor-mounted unit must be equipped with vibration damping base, minimum 800mm maintenance space reserved at fan section.
U-type water trap mandatory for condensate drain pipe to prevent air backflow & odor.
Replace filters when differential pressure alarm triggers; HEPA filters cannot be washed.
Inspect fan belt tension & coil scale annually; drain all water in pipes before winter to avoid freeze crack.
Cut off power before opening UV maintenance door to prevent ultraviolet burns.
