600 KG Weight Customizable Rooftop Air Handling Unit AHU for Customer Requirements

Product Overview

Air Handling Unit

Features at a Glance

• Cleanroom HVAC Applications

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  Application	Typical AHU Function
  Pharmaceutical Cleanrooms	Temperature, humidity and filtered-air supply
  Medical Device Facilities	Controlled air conditioning and ventilation
  Electronics Manufacturing	Environmental and particulate-control support
  Laboratories	Stable temperature and humidity control
  Cosmetic Manufacturing	Conditioned and filtered air supply
  Hospitals	HVAC air treatment for controlled areas

  Technical Specifications

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  Air Volume	Customizable
  Cooling Capacity	2.0–12.6 kW
  External Static Pressure	300–1000 Pa
  Air Filtration	G4 Pre-filter + F8 Medium Filter + H13 HEPA
  Casing Material	Double-skin Galvanized Steel Sheet (PU Insulated)
  Coil Material	Copper Tube with Aluminum Fins
  Fan Type	Centrifugal Plug Fan (EC/AC)
  Fresh Air Ratio	20%–30%
  Power Supply	380V / 50Hz / 3Ph
  Refrigerant	R134a
  Control System	PLC + HMI with BMS Interface

  AHU Configuration & Components

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  Main AHU Components

  • Fresh Air / Return Air Section
    Controls the introduction and recirculation of air according to the HVAC design.
  • Pre-Filtration Section
    Removes larger airborne particles before air enters the finer filtration stages.
  • Cooling Coil
    Removes sensible and latent heat from the air. It can be connected to a chilled-water system or other specified cooling source.
  • Heating Section
    Provides heating when required for temperature control or winter operation.
  • Humidification / Dehumidification
    Configured when the cleanroom process requires tighter humidity control.
  • Fan Section
    Provides the required airflow and static pressure for the downstream air distribution system.
  • HEPA Filtration
    Can be incorporated where the system design requires high-efficiency final filtration.
  • Control Section
    Monitors and regulates operating parameters such as temperature, humidity, fan status, and differential pressure.

  Airflow & Filtration System

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  Fresh / Return Air
  ↓
  Pre-Filter
  ↓
  Fine Filter
  ↓
  Cooling / Heating Coil
  ↓
  Fan Section
  ↓
  HEPA Filter*
  ↓
  Cleanroom Air Distribution

  HEPA filter location depends on the cleanroom HVAC design. In some systems, final HEPA filtration is installed at the terminal FFU or ceiling level rather than directly inside the AHU

  Temperature & Humidity Control

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  The AHU can be configured to support temperature and humidity control through cooling coils, heating sections, humidification and dehumidification functions. Control parameters are selected according to the cleanroom process, product requirements, outdoor conditions and HVAC design.

  • Supply air temperature
  • Return air temperature
  • Relative humidity
  • Cooling coil
  • Heating coil
  • Humidifier
  • Dehumidification
  • Sensors
  • PLC/HMI

  HVAC System Integration

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  The Clean Room AHU can be integrated with:

  • Chilled Water Chiller
  • Chilled Water Pumps
  • Cooling Towers, where applicable
  • Ductwork
  • HEPA Filters
  • FFUs
  • Cleanroom Terminal Units
  • Differential Pressure Monitoring
  • Temperature & Humidity Sensors
  • BMS

  The AHU primarily conditions and supplies air, while terminal filtration and airflow distribution are determined by the overall cleanroom HVAC design.

  Engineering & Selection Process

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  Engineering & Selection Process

  • 1. Requirement Analysis
    Review cleanroom classification, room volume, occupancy, process heat load, outdoor air requirements, temperature and humidity targets.
  • 2. Airflow Calculation
    Determine supply and return airflow based on room requirements, air-change strategy, pressure relationships and process requirements.
  • 3. AHU Selection
    Select airflow capacity, static pressure, cooling/heating capacity, filtration stages, fan type and control configuration.
  • 4. System Integration
    Coordinate AHU with chillers, pumps, ductwork, HEPA filters, FFUs, sensors and BMS.
  • 5. Manufacturing
    Manufacture the AHU according to the approved configuration and technical specifications.
  • 6. Testing & Commissioning
    Perform applicable factory inspection and support on-site commissioning according to the project scope.

  Related Cleanroom Project Experience

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  Pharmaceutical Cleanroom Project – Mauritius

  • Application: Pharmaceutical manufacturing
  • Scope: HVAC system design / AHU integration / installation support
  • Country: Mauritius

  Air Mixing & Proportioning

  • Purpose: To balance energy efficiency with indoor air quality (IAQ).

  • How it Works: Dampers automatically adjust the ratio of outside fresh air and indoor return air. This allows for "free cooling/heating" using return air to save energy while ensuring sufficient fresh air intake for occupant health and ventilation requirements.

• Air Filtration & Purification

  • Purpose: To protect downstream equipment and improve IAQ by removing contaminants.

  • How it Works: Air passes through a series of filters.

    • Pre-filter: Traps large particles like dust and lint, protecting coils and fans.

    • Medium-efficiency filter: Removes finer particles (e.g., pollen, mold spores), common in commercial buildings.

    • High-efficiency/HEPA/Chemical filters (Optional): Used in critical environments like hospitals and labs to remove PM2.5, bacteria, viruses, or gaseous pollutants.

• Air Temperature & Humidity Control

This is the core conditioning process, achieved via heat exchangers and humidifiers.

• • Cooling & Dehumidification: Air passes over a cooling coil carrying chilled water (~7°C) from a chiller or direct-expansion refrigerant. The air cools below its dew point, causing moisture to condense and drain away.

  • Heating: Air passes over a heating coil carrying hot water from a boiler or using electric resistance elements.

  • Humidification: In dry climates or during winter, a humidifier (steam, ultrasonic, or evaporative) adds precise moisture to the air.

• Air Movement & Distribution

  • Purpose: To provide the motive force for airflow and deliver it to the occupied spaces.

  • How it Works:

    • Fan: The "heart" that provides the pressure to move air through the ductwork. Modern AHUs use Variable Frequency Drive (VFD) fans to modulate airflow based on demand, saving significant energy.

    • Silencer/Attenuator: Reduces noise generated by the fan and airflow.

    • Conditioned air is then distributed quietly and evenly to rooms via ductwork and diffusers.

• Energy Recovery (A Key Feature in High-Efficiency AHUs)

  • Purpose: To dramatically reduce heating and cooling energy consumption.

  • How it Works: A heat recovery device (e.g., heat wheel, plate heat exchanger) is placed where the exhaust air and fresh intake air streams cross. It transfers thermal energy from the exhaust air to pre-condition the incoming fresh air, potentially reducing loads by over 60%.

Products Description

• Fresh Air/Return Air Mixing Section
  • Equipped with fresh air dampers, return air dampers and exhaust air dampers, the opening degree of the dampers is adjusted by electric actuators to precisely control the mixing ratio of fresh air and return air.
  • In civil scenarios, usually 20% - 30% of fresh air is mixed to ensure indoor oxygen content; in industrial clean rooms, the fresh air volume is adjusted according to the pressure difference requirements to maintain positive/negative pressure balance.
   
• Filtration Section
  • It is the core link for AHU to ensure the cleanliness of supply air, and usually adopts a multi-stage filtration design:
    • Primary Efficiency Filter: Intercepts large particle dust, hair, fibers, etc., protects the subsequent medium efficiency filter and fan. Common materials are non-woven fabrics and metal mesh, with a cleaning cycle of about 1 - 3 months.
    • Medium Efficiency Filter: Filters suspended particles with particle size ≥1μm. The material is mostly non-woven fabrics and glass fiber, with a replacement cycle of about 3 - 6 months.
    • Optional Sub-high Efficiency Filter: Installed in high-demand scenarios (such as pre-treatment of clean rooms) with higher filtration efficiency, reducing the load of terminal HEPA filters.
     
  • Equipped with differential pressure monitoring device to monitor the differential pressure across the filter in real time, and issue a replacement reminder when the differential pressure exceeds the standard.
   
• Temperature and Humidity Treatment Section
   
  It realizes the precise control of air temperature and humidity, and is the core functional section of AHU:
  • Refrigeration/Dehumidification Section: Built-in surface cooler connected with chilled water or refrigerant. When air flows through the surface cooler, the temperature drops, and water vapor condenses on the fin surface to achieve dehumidification. It is suitable for summer or high-humidity environments.
  • Heating Section: Divided into hot water heating (energy-saving and environmentally friendly with hot water supply) and electric heating (fast heating and strong controllability), used for winter heating or constant temperature control required by processes.
  • Humidification Section: Different humidification methods are selected according to needs to meet the humidity requirements of dry environments:
    • Dry Steam Humidification: Uniform humidification without water droplets, suitable for high-precision scenarios such as clean rooms and electronic workshops.
    • Electrode Humidification: Generates steam by heating water through electrodes with high control precision.
    • High-pressure Spray Humidification: Low cost, suitable for civil or general industrial scenarios.
     
   
• Fan Section
   
  It provides power for air delivery and is the "power heart" of AHU:
  • The core components are centrifugal fans or axial fans. Centrifugal fans are mostly used in clean rooms and large buildings due to their high air pressure and long air supply distance.
  • Standard equipped with variable frequency motor, which can adjust the fan speed according to indoor load changes (such as temperature and humidity deviation, pressure difference changes), realize energy-saving operation and precisely control the air supply volume.
  • Equipped with shock absorption devices (such as shock absorption springs and shock absorption pads) to reduce vibration transmission during fan operation and lower noise.
   
• Auxiliary Functional Sections
  • Noise Reduction Section: Built-in silencer to reduce the noise generated by fan operation and air flow. It is a standard configuration for civil buildings and noise-sensitive laboratories to ensure that indoor noise meets the specifications.
  • Maintenance Section: Equipped with maintenance doors and platforms for personnel to enter the unit for maintenance, filter replacement and fan inspection.
  • Air Supply Section: Connected to the air supply duct, and some units are equipped with air volume regulating valves here to further distribute air volume precisely.

Engineering Process

• Requirement Analysis
  Review airflow, cooling/heating load, filtration and cleanroom requirements.
• AHU Configuration
  Select casing, filters, coils, fans and control components according to project specifications.
• Manufacturing & Inspection
  Assemble and inspect the AHU before shipment.
• Installation & Commissioning
  Support installation, airflow adjustment and system commissioning.
• Testing & Documentation
  Provide applicable testing records, operation manuals and project documentation.

Related Products

SHP also provides cleanroom HVAC and environmental control equipment, including:

• Air-Cooled Chillers
• Fan Filter Units (FFUs)
• Cleanroom Air Showers
• Pass Boxes
• Cleanroom Doors and Windows
• HVAC Control Systems

Company Profile

As a leading supplier of clean room system and clean room products,SHP is an organization that prides itself both on technical expertise as well as next level customer care.SHP offers Cleanroom Solutions to meet our clients' particular requirements specialized for pharmaceutical,biotechnology and microelectronic cleanrooms.We also provide a range of Clean Room products including wall panel,door&window and a series of clean room equipment.

As an ISO 9001:2015 certified organization,we are committed to continually improving our customer service programs while meeting or exceeding your product quality criteria.With our comprehensive customer solution offerings,excellence in products,and decades of technical expertise,we are confident that SHP can match the best to your application.

Certifications

Certifications

• ISO 9001:2015
• CE Certificates (if applicable)
• Cleanroom Related Testing Reports

Our Customers

Customer Photos

Packing and Shipping

Why SHP

• Over Two Decades of Cleanroom Engineering Experience
• 2,100+ Cleanroom Projects Completed and Delivered
• Project References in 40+ Countries
• 12 Highly Experienced Senior Cleanroom & HVAC Engineers
• Design, Manufacturing, Installation & Commissioning Expertise
• Serving Projects in Pharmaceutical, Electronics, Medical and Laboratory Facilities

FAQ

Q1: Where is your company?

A1:Our company is located in Suzhou City, close to Shanghai. It's a 1.5-hour drive from PVG Airport.

Q2: Are you a manufacturer or a trading company? What can I buy from you?
A2: We are manufacturers. We focus on cleanroom projects, air showers, FFUs, through boxes, dosing rooms, laminar flow hoods and benches, AHUs, and sealed doors and Windows. 

Q3:When is your delivery time? 
A3: If your cleanroom project includes AHU, the delivery time is 35 days. If you purchase goods without an AHU, the delivery time is 10 days. 

Q4: How long is your warranty period? What kind of after-sales service can you offer?
A4: Our warranty period is two years after the completion of the project. During the warranty period, if there are any problems, we will replace it. If you can't handle it, we will send an engineer to solve it for free.

Q5:Can you conduct cleanroom validation? 
A5: Yes. We can provide DQ, IQ, OQ and PQ documentation, FAT/SAT reports, operation manuals, maintenance guides and complete cleanroom drawings according to project requirements. 

Q6:What are your advantages?
A6: We have a complete technical team consisting of 12 senior cleanroom and HVAC engineers to provide you with technical support. We have completed over 2,100 cleanroom projects in China and overseas. Such as Japan, Indonesia, Thailand, Bangladesh, India, North Macedonia, Saudi Arabia, Yemen, Russia, Moldova, Switzerland, Norway, the United Kingdom, Spain, France, Belgium, Kuwait, Tunisia, Mauritius, Sri Lanka, Mongolia, Philippines, Nepal, Sudan, Somaliland, Australia, New Zealand, Canada, Algeria, Egypt, Singapore, and the United States.