Enterprise app for HVAC Efficiency Audit

Enterprise app for HVAC Efficiency Audit


The client, a reputed manufacturing company, wanted to develop a custom checklist mobile app that helps to evaluate the energy efficiency of HVAC systems installed at their premises. Paper-based checklist forms proved to be sluggish and ineffective for them, and hence the need for an app. The client approached us to develop an iPad app and a backend solution.


HVAC Efficiency Audit App

The Scalans team put together the inputs related to HVAC systems gathered from the client, in the form of a mini questionnaire. The idea was to collate key attributes that required to be periodically checked during energy audits of the HVAC machinery. 

Some of these included –

  • Room-to-room air ventilation
  • Changing air filters
  • Adjustment of thermostats
  • Exhaust system operations
  • Cleaning vents and ducts
  • Annual and seasonal maintenance
  • Occupancy patterns

and many more.

Based on the questionnaire, checklists were generated for different systems – Heating, Ventilation, Cooling, Air filtration, HVAC Controls, etc. and incorporated into the app. Fields for noting date and time of the audit were provided along with spaces for writing recommendations. Additional features like Photo capture, GPS location, Digital signature, etc. were also added to enhance app usability.

Technologies Used: Swift Programming, Native iOS SDK, React JS, Node.js, Redux, Apollo express GraphQL, PostgreSQL


After analyzing the data collected using the app, the client was able to identify key systems that were consuming excess energy and hence, remedial measures were undertaken to improve efficiency. Moreover, it helped company personnel to track HVAC system updates in real-time and alerted them to any missing tasks/procedures.

Overall, regular usage of the HVAC checklist app reduced energy expenditures and improved cost savings for the company.

“Desperation sometimes drives innovation.”Dara Khosrowshahi, CEO of Uber

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