Product & Solution

Air handling units

Hygienic-Air Handling Unit

H-AHU Definition: “The air handling unit where used in the sensitive sterile conditions.”

BENDIG™ has been participating in the Eurovent Certification program since 2012. The certification body has recently, extend their program coverage to hygienic design prospect of air handling units. BENDIG has been develped its ptp-h range to full fill broader requirement for units serving in public area, cleanroom, and healthcare facility. Our ptp-h range is now Eurovent Hygienic certified with 3 stars rating. The highest rating suitable fr the most hygiene requires.

  • Guarantee no residue or positive growth micro organism in AHU cabinet materials
  • Testing standard DIN EN 1946/4-6 materials coating properties
  • 3-stars Eurovent Hygienic Certified
  • Determine specific Hygienic feature in each unit
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The air handling unit definition:

A factory-made encased assembly consisting of a fan or fans and other necessary equipment to perform one or more of the functions of circulating, cleaning, heating, cooling, humidifying, dehumidifying and mixing of air.

​The hygienic air handling unit definition:

The air handling unit where suitable for using in the sensitive sterile condition.

Benefit of HAHU

The HAHU Certification sets new industry standard for the following reasons.

 

  1. Easy to classified: Create 1 to 3 star rating that accounts for different hygienic requirements.
  2. Proven hygienic performance: Stringent, annual factory and selection software audits.
  3. One certification: Eurovent HAHU combines the requirements of multiple hygienic standard (e.g. VDI6022-1,DIN1946-4,HTM) in single programe – bringing an end to international standard of requirement.

HAHU Definition: “The air handling unit where used in the sensitive sterile conditions.”

3-Stars Hygienic

Benefits of PTP-H (Metallic Part)Physical AHU shall be specific Hygienic-Characteristic

BENDIG PTP-H rangeof air handling unitscan satisfy all requirements relatingto healthcare, whetherthese have to do withair cleanliness, noiselevels or demandcontrol

BENDIG PTP-H model meet the 3-Stars class in HAHU Certification program according to RS of ECP. This superiority compound with several featuresfor instance, selection software, detailing-design of theAHU, exceptional test result of En1886, materialcontact with air steam shall be tested EN ISO 846,and so on. These features confidence customer andlet easily to choose the most suitable unit for their project.

Compare Hygienic Certification

BENDIG™ provide water based antimicrobial surface to our AHU. It contains both a bactericide to protect the coating against over 650 strains of bacteria and a fungicide to protect against mold, mildew and algae. Bioshield technology inhibits reproduction, interrupts metabolism and disrupts cell wall functions of many molds, yeasts and bacteria. This hygienic technic be applied to plant in our equipment surface for instance , walls, frame-works and other appropriate surfaces to reduce microbiological contamination and propagation.For the physical configuration BENDIGTM also studies the detail of Hygienic requirement regarding to standards and/or design consideration follow as below.

Energy Saveing product

Heat Pipe​

H-PTP model is able to combine with energy recovery such as Heat Pipe and Plate heat exchanger. For heat pipe, either horse-shoes or mono-flat are available for Hygienic AHU.

 

Plate Heat Exchanger

Plate heat exchanger also optional for energy recovery in air handling unit. We available for single air steam and double air steam base on application requirement,

Ultraviolet Sterilization

High energy UV light purifies and disinfects water, air and surfaces, long term and reliably. The use of chemicals can be reduced or totally eliminated. All this makes UV disinfection and oxidation one of the most cost-effective and environmentally-friendly processes and one which is increasingly being used in innovative applications.

IP68 waterproof rating allows the cable connector to withstand harsh weather conditions.

Safety switch cuts off the power to the UV system if the access panel is opened to prevent UV exposure.

Evaporator Coil: UV lights can be installed near the evaporator coil, especially on the downstream side (after the coil), to help sterilize the air as it passes through the HVAC system.

 

Return Air Duct: Another option is to install the UV light in the return air duct, before the air enters the main HVAC unit.

Fan

FAN PTP-H available for open-wheel or plug-fan according to European standard and requirement. This make operator convenience to clean and recheck after stop unit, Impeller materials shall be composite materials, aluminium and mild- steel with polyester powder coating. All comply with EUROCODEor EN-12944-1.

DETAIL EC FAN

Potentiometer

Built-in Potentiometer shall be available for EC-motor. Even controller malfunction, BENDIG AHU can manually adjust air volume flow without fix speed operation.

DETAIL PLUG FAN

Isolator

Isolator also hygienic in detail, finishing and screwing available for C4 class corrosivity according to EN12944-1. The lesser obstruction the better cleaning. This ensure PTP-H provides clean air to your occupied area,

Coil

Direct Expansion coil PTP-H Can provide refrigerant coil as an optional for expansion cooling. The back-up cooling for redundancy system shall be our recommendation for hospital or critical area where system remains operate even unexpected condition

Recommended Coil Coatings

Hygdrophilic coating

​PTP-H ensure moisture removal with Hydrophillic coating. Fin spacing and configurations are comply with HAHU ECP-05 of Eurvent standard. We recommend this coating for fresh air or outdoor air coils.

Epoch coating

This helps to extend the coil’s service life, especially in highly corrosive environments, and to maintain the cooling performance and indoor air quality by resisting microbial growth.

Titanium dioxide ( TiO₂ ) coating

​The TiO₂ photocatalytic coating is activated by light to generate powerful free radicals, a process that actively decomposes and eliminates surface-level bacteria, viruses, and harmful VOCs; this action ensures long-term system efficiency and superior indoor air hygiene.

Eliminator

Eliminator

2 Nose Water eliminator eliminate water carry over from coil to down steam section.

Drain Pan

Self-run off stainless steel drain pan. The design for PTP-H drain pan according to European Hygienic standard and DIN1946-4 section 6.5.4 which 95% of water must be drained out with in 10 minutes