Can I still install a chemical filter if the air conditioning box does not have a reserved filter section?

When the air conditioning box does not have a chemical filtration section reserved, modification can still be evaluated, but the space, air volume, sealing, support and maintenance conditions need to be checked. It cannot directly occupy other functional sections without evaluating the original air treatment tasks. The feasibility of modification depends on the machine section space and system margin, rather than just whether the filter can be stuffed in.

1. Relatively feasible installation location

The effects of adding a new independent filter box, adjusting machine sections or local protection are different. The location should correspond to contamination paths and avoid unidentified droplets and condensation.

When there is no reserved filter section, there are several modification directions: install an independent filter box outside the air-conditioning box, so that the air passes through the filter box first and then enters the air-conditioning box; adjust inside the machine section, use existing space or merge other functional sections; use local chemical filtration at the end or equipment end instead of centralized processing in the air-conditioning box. Aili Industry isIn the box-type chemical filter package, the independent filter box solution can be evaluated according to the space of the machine section.The V-type chemical filter can be used as an option for installation in the machine section when the depth is limited. Industry sources also mention that chemical filter frames can be integrated directly into new and retrofit air handling units as stand-alone system units. The relationship between levels and filtering requirements can be found inISO cleanliness level comparison。-2-4

2. Evaluate the complete machine and construction scope

Piping and frame changes can increase resistance and maintenance requirements. It is necessary to check the fan capacity, shutdown arrangements and air volume balance after modification, not only to confirm whether the filter element can be inserted.

The new filter section will increase the internal resistance of the machine, and the fan needs to provide greater residual pressure to maintain the original air volume. If the fan margin is insufficient, the terminal air supply may decrease even if the filter is installed. At the same time, the frame support, access door opening space and sealing treatment are all within the scope of modification. Aili Industry isIn the FFU chemical filter package, check the modification conditions according to the section resistance and fan capacity.The speed adjustment capability of the FFU fan filter unit can compensate for the air volume after the resistance changes. The relationship between transformation scope and system verification can be found inHEPA FAQs and Selection Guide . The chemical filter FFU can be used as an independent circulation purification unit to provide local chemical filtration capabilities without modifying the air conditioning box.

3. Examples of project judgment

When the space inside the machine is insufficient, you can compare the external filter box with the local solution, and check the new interface and maintenance path.

When there is not enough space inside the machine, an external independent filter box or local filtration at the equipment end may be more feasible. When choosing, you need to compare transformation investment, maintenance convenience and impact on the original system.

4. Application Check Points

5. Verification and subsequent use

After the filter section is added or adjusted, the actual air supply and target gas should be checked separately. Recording fan settings, air volume, and temperature and humidity can help explain subsequent changes. Gas effects, particle requirements and room airflow each have corresponding methods, and passing one of them cannot replace the acceptance of all.

Aili Industry ischemical filter air-conditioning box modification plan, the feasibility of additional installation is evaluated based on the machine section conditions and fan margin.In the Flat chemical filters are suitable for local filtration scenarios with more limited space.

6. Related questions and answers

If there is no reserved filter section, it must not be installed?
uncertain. External filter boxes, machine section adjustments or local filtration solutions can be evaluated, but space, resistance and fan margin need to be checked.

Will installing a chemical filter section affect the function of the original air conditioning box?
possible. Adding new resistance will change the working point of the fan and may affect the air supply volume. It is necessary to check the operation of the entire machine, not just confirm that the filter can be inserted.

Which is better, an external filter box or an in-machine filter?
Depends on machine section space and maintenance conditions. The external solution makes less changes to the original machine section, but requires additional installation space and interfaces.

7. Related articles

Chemical filter product series

Box chemical filter

FFU chemical filter

HEPA FAQs and Selection Guide

What is a chemical filter FFU? The main difference from ordinary FFU?

8. Key points for selection and acceptance inspection

9. Aili Industrial products and equipment supporting equipment

Aili Industry provides chemical filters and clean air supply equipment selection and matching, and can check the air-conditioning box matching based on fresh air gas, filter section location, fan residual pressure and maintenance channels. The manufacturing and supporting system covers the independent research and development and production of motors and fans, control systems, sheet metal, air filters and complete machine assembly, making it easy to jointly confirm the filter section, power and structural conditions. The specific gas effect, environmental suitability and service life still need to be verified based on the corresponding configuration data and actual working conditions.

learnMAU box-type chemical filter , check the product and air supply matching according to the project conditions. Clarify the goal → Check the conditions → Verify the effect → Arrange maintenance.