HVAC Smart Controller

Client's Overview:

India’s leading air conditioning and commercial refrigeration company, with an integrated business model of a manufacturer, contractor and after sales service provider, offering end-to-end solutions to customers, which is proven to be significant differentiator in the market.   


Client was looking to add innovative features to their air-conditioning products. Their primary goal was to keep up with the ever-changing products in the market and change their existing product-user interaction scenarios.

Solution & Approach:

To address the challenges, the need was to upgrade the existing smart HVAC controller solution, focusing overall product cost target, thus enabling the client to compete with the international brands present in the marketplace.

The smart HVAC controller solution was upgraded to include a low-cost module for connectivity to the existing HVAC controller which will provide a remote monitoring and control of the HVAC controllers –

  • The module was designed to connect with HVAC controller using a serial port and also WIFI connectivity to connect to a local router
  • Online upload of HVAC data to the cloud-based server was configured along with development of fault predicting algorithms
  • Alerts were set-up to trigger automatic e-mails and text messages from server to pre-configured recipients
  • Mobile application with intuitive and modern UI was developed


The delivered low-cost solution ensured technology upgradation by integrating current and emerging technologies thus resulting into an implementation of smart controller which could be made applicable for client’s diverse HVAC product family, thus providing –

  • Ability to compete with international HVAC smart solutions and at targeted product price in the desired market
  • A user-friendly and competitive remote-control solution with a dedicated embedded system
  • Accessibility, monitoring and controlling from local and remote locations
  • An improved User Interface
  • New and drastically improved servicing efficiency
  • Constantly updated performance data for better algorithm
  • Complete fault prevention and preventive maintenance


The solution with upgraded HVAC controller having remote monitoring module has been deployed on the field and running successfully since last 5 years.

  • HVAC Control Retrofit Add-on
  • Machine Connectivity
  • IoT/IoE
  • Remote Monitoring and Control 
  • Fault Prevention and Analysis 
  • Mobile Apps
  • Single board module – Double-sided PTH
  • Schematics, BOM, Layouts and Gerbers: PADS from Mentor Graphics
  • Code in C
  • C#
  • .Net Framework 4
  • SQL Server
  • AngularJS on Cordova framework for Smartphones
  • Azure Cloud