SECTOR

SOLUTION

CONTACT US

Contract

We are therefore available to listen to your requests and analyse the technical feasibility of the most appropriate solution for the specific situation, even for a single piece.

ENG
Lightprogress Area Riservata
Private Area
  1. Home /
  2. UV Facts /
  3. HVAC: UV-CALC - The HVAC Configuration Software for UV-C Systems in AHUs

HVAC: UV-CALC - The HVAC Configuration Software for UV-C Systems in AHUs

Articles HVAC
24.01.2026
HVAC: UV-CALC - The HVAC Configuration Software for UV-C Systems in AHUs - Light Progress

A PRACTICAL, INTEGRATED TOOL DESIGNED FOR HVAC ENGINEERING

When designing a UV-C system for HVAC applications, the difference between a generic solution and a truly effective one lies in the quality of the sizing process.
UV dose, irradiation, exposure time, and system configuration must be fully aligned with the real operating conditions of the installation.

UV-CALC is the Light Progress configuration software developed to support designers, OEMs, and partners in the selection of UV-C lamps and related components, offering a technical yet intuitive approach, accessible online and easily integrable into existing design workflows.

What is UV-CALC

UV-CALC is an HVAC configuration tool for UV-C systems, specifically designed for applications in Air Handling Units (AHUs) and air ducts, with a focus on:

  • Air disinfection (AIR)

  • Coil disinfection (COIL)

  • Combined AIR + COIL configurations

The goal is to deliver clear and actionable design outputs: which models to use, how many lamps are required, and how to configure the system according to the actual application parameters.

From disinfection target to system configuration

UV-CALC allows users to easily define the required disinfection level (Good / High / Max), ensuring that system sizing is aligned with project objectives and expected performance.

Based on the input data, the software supports:

  • selection of the most suitable UV-C lamp models

  • calculation of the required number of lamps

  • optimal configuration of power supply options

  • selection of installation accessories and mounting components (e.g. extension cables, mounting kits)

Charts and outputs: design transparency inside the air duct

One of the key strengths of UV-CALC is its engineering-oriented approach.
The software does not only provide a final result, but also visual tools to support system validation and design confidence.

Depending on the configuration, UV-CALC can generate:

  • UV-C irradiation and dose distribution charts inside the air duct, calibrated to the input data

  • a graphical application layout for AHUs and air ducts

  • airborne microbial reduction estimation, including references to tuberculosis, legionella, and SARS-CoV-2

  • PDF output reports, ready for technical documentation and sharing



Complete BOM: UV-C systems, mounting kits and accessories

UV-CALC generates a complete Bill of Materials (BOM), supporting quotation and procurement activities and including:

  • UV-C systems

  • mounting kits

  • installation accessories and components

This enables a smoother transition from calculation to implementation, reducing errors and saving time.

Online and integrable: the BLACKBOX version (DLL)

In addition to the online calculator, UV-CALC is also available as a BLACKBOX software package:

  • developed as a .NET DLL

  • usable as a stand-alone module

  • or fully integrated into AIRCALC and AIRCALC NEXT

This solution is ideal for partners and OEMs looking to embed UV-C configuration logic directly into their own calculation tools and engineering workflows.

Want to see UV-CALC applied to your project?

TRY UV-CALC HVAC AIR NOW: https://lightprogress.onrender.com/it/uv_dosage

TRY UV-CALC HVAC COIL NOW: https://lightprogress.onrender.com/it/hvac_coil/

REQUEST THE DLL KEY: https://forms.office.com/e/1WVWrjJ594

Or contact one of our consultants: info@lightprogress.it

F.A.Q.

Ultraviolet rays are electromagnetic waves which are part of light. Electromagnetic waves are divided into three main wavelength bands, expressed in nanometers, nm: Ultraviolet rays (UV) 100-400 nm Visible rays (light) 400-700 nm Infrared rays (IR) 700-800,000 nm UV rays are in turn identified in three bands:

  • UV-A (315-400 nm) with tanning properties;
  • UV-B (280-315 nm) con proprietà terapeutiche e di sintesi della vitamina "D";
  • UV-C (100-280 nm) with germicidal properties.

UV-C rays (100-280 nm) have a strong germicidal effect and reach their maximum efficacy at the 265 nm wavelength. The germicidal effect of UV-C radiation covers bacteria, viruses, spores, fungi, moulds and mites; this is mainly due to the destructive effect of the UV-C rays on their DNA, which damage their reproductive system and prevent them from replicating.

Bacteria, Viruses, Spores, Fungi, Mould, and Mites are all sensitive to, and can therefore be eliminated with, UV-C light. Mircrobes cannot acquire resistance to UV-C light, unlike that which occurs using chemical disinfectants and antibiotics. UV rays are ecological. Polluting the environment is inevitable using normal disinfectants. Directly inhaling the vapours, or swallowing food products contaminated by any contact with said chemical disinfectants, can also give rise to a number of serious risks. In cases where chemical disinfectants cannot be eliminated (food, pharmaceutical, healthcare industries, etc.), using ultraviolet rays for disinfection allows a reduction in their use, with considerable economic savings and greater care for the environment, while maintaining and almost always improving the level of disinfection. UV-C light devices can be installed in environments and on machinery and be programmed to maintain the same level of disinfection day and night, guaranteeing ideal hygiene conditions, without highs and lows. On the contrary, chemical disinfectants are effective only during their actual use. Using LIGHT PROGRESS equipped luminaires, operating costs are negligible; it could be said that “LIGHT PROGRESS” UV-C systems do not require maintenance except for the normal replacement of the lamps. The cost/benefit ratio is considered excellent; the devices are both powerful and long-lasting. Hence the elimination of germs using UV-C technology is low-cost and highly effective compared to (or in combination with) other systems.

UV-C really does work when applied correctly and with the necessary precautions. The difference between a quality project and an unsuccessful application is in-depth knowledge and experience gained over time. Since 1987, Light Progress has been carrying out successful projects all over the world and has acquired a clientele of major companies in all sectors that require verified hygienic conditions to produce quality products and services.