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20 2月

What are the applications of air handling units

Air handling units (AHUs) are devices that are used to regulate and circulate air within a building or other enclosed space. DX Modular Air Handling Unit They are applied in a wide range of applications, including but not limited to the below applications: HVAC Systems: AHUs are an integral part of heating, ventilation, and air conditioning (HVAC) systems. They help regulate the temperature, humidity, and air quality within a building, ensuring that occupants are comfortable and healthy. Industrial Processes: AHUs are used in a [...]

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10 5月

How to do Air Conditioner Manintenance

Just as your car requires regular maintenance to run smoothly and properly, your A/C also requires regular care. Proactively taking care of your air conditioner not only extends the life of your unit but can also save you a substantial amount of money on repair and replacement costs. Something as simple as changing the air filter in your unit can prolong its efficiency and improve the air quality in your home. You already know maintenance is very important for air conditioner operation, then [...]

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16 4月

What’s the difference between split AC and Mini VRF and Mini Chiller?

HVAC sytem, as the most power consumption equipment for buildings,  it’s very important to select the right air conditioning system for your home. As we talk with many owners, we find many of them are confused about the difference of split AC, mini VRF and mini chiller system. Today we’ll show you the differences among the three different systems: Split AC,  one outdoor unit match with one indoor unit, which is also the traditional ac for residential applications. 2. Mini VRF,  one outdoor unit can [...]

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07 6月

HVAC Glossary

HVAC Glossary Activated carbon — granular processed carbon, commonly used in air filter media to clean the air. Air conditioner — equipment used to control indoor air temperature, relative humidity, purity, and movement. Air conditioning — making indoor air more comfortable by transferring heat and humidity to the outside air. Air-cooled — using a fan to move heat away from the condenser coil to the outside air. Air filter— in heating and air conditioning, the media, element, or device used to remove unwanted particles, vapors, or odors from [...]

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22 12月

Clean Room Classification and Filter Grade

Clean Room Classification Correlation between particle size efficiency, Eurovent 4/5,EN779 and ASHRAE 52.1 and 52.2 Ratings Eurovent 4/5 EU3 EU4 EU5 EU6 EU7 EU8 EU9 EN 779 G3 G4 F5 F6 F7 F8 F9 Arrestance 60 to 80% 80 to 90% 90 to 95% 95 to 98% >98% >98% >98% Dust spot efficiency < 20% 20 to 35% 40 to 55% 60 to 80% 80 to 90% 90 to 95% >95% MERV 5,6 7,8 9,10 11,12 13 14 15 % Min. PSE @ 10 micron 90 98 100 100 100 100 100 % Min. PSE @ 5 micron 75 80 95 98 100 100 100 % Min. PSE @ 3 micron NA NA 85 90 95 98 100 % Min. PSE @ 1 micron NA NA 55 70 85 90 95 % Min. PSE @ 0.5 micron NA NA 35 50 65 75 85 % Min. PSE @ 0.3 micron NA NA 20 40 50 60 70 Rating Comparison for HEPA and ULPA Filters EN 1822 FILTER CLASS % MPPS EFFICIENCY EFFICIENCY [...]

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16 3月

When do you need to change AHU filters?

When to Change Filters of Air Handling Unit An air handling unit, is a system used to circulate and condition the air in your heating, ventilating and air conditioning unit. Check and replace air-handling unit (AHU) filters regularly to ensure proper function and maximize system operation. Keeping filters and coils clean can dramatically improve the efficiency of the entire HVAC system. Damage of polluted filters Pollutedfilters can increase the energy demand on fans. Pollutedfilters can reduce the volume of supply air, resulting improper [...]

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21 3月

What is HVAC

Heating, ventilation, and air conditioning (HVAC) are the technology of indoor environmental comfort. Its goal is to provide thermal comfort and acceptable indoor air quality. Refrigeration is sometimes added to the field’s abbreviation as HVAC&R or HVACR. HVAC is an important part of residential structures such as single-family homes, apartment buildings, hotels and senior living facilities, medium to large industrial and office buildings such as pharmaceutical factories and hospitals, meeting hall and c, and in marine environments, where safe and healthy building conditions are regulated with respect to temperature and humidity, using fresh air from outdoors. Ventilating or ventilation (the V in [...]

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