Listen Case Study:
Table of Contents:
Table of Contents
Project Snapshot
| Client | Immanuel Prayer Hall |
| Sector | Religious / Community Institution |
| Location | Tenali, Andhra Pradesh |
| Seating Capacity | 2,000+ |
| Units Installed | 10× PAC 18 with direct cooling grills |
| Key Benefit | Lower power & installation cost vs. AC |
Table of Contents
Challenge
The newly constructed Immanuel Prayer Hall in Tenali was designed to accommodate more than 2,000 people across a large, open space. During the planning phase, the management initially considered installing air conditioners. However, the scale of the hall raised serious concerns — cooling a 2,000-seat open space with AC would require a large number of units, driving up both installation costs and long-term electricity bills considerably. There was also the question of air quality, as AC systems do not introduce fresh air into the space.
The hall’s dealer recommended exploring Symphony’s large-space air coolers as a more practical alternative — one that would lower both upfront and running costs while providing better air quality for congregants throughout services.
Solution
After reviewing the hall’s dimensions and seating layout, Symphony Venti-Cool’s team recommended ten PAC 18 coolers, supplemented with direct grills for even and targeted air distribution. The PAC 18 was selected for its ability to deliver powerful, even airflow across large open spaces at a consistent single speed — making it reliable and straightforward to operate. High-quality built-in air filters ensure that the air distributed to congregants is clean and free from dust and particulates.
The grills were positioned to ensure direct cooling coverage reached all seating areas without creating uneven temperature zones. The installation was completed efficiently, with the entire setup commissioned ahead of the hall’s first major service.

Performance
The ten PAC 18 units, working through the installed grill network, delivered even and powerful airflow across the full seating area of the hall. Single-speed operation of the PAC 18 maintained consistent cooling throughout services without fluctuation. The system ran quietly — important in a place of worship — and built-in filters ensured clean air delivery to all areas of the hall. Power consumption was substantially lower than what an equivalent AC installation would have required.
Result
Immanuel Prayer Hall’s management confirmed satisfaction with the outcome — specifically highlighting the reduced power and installation costs compared to the AC route originally considered, and the clean, even air quality achieved across the hall. Congregation members were more comfortable throughout services, enabling longer and more focused participation. The project demonstrates Symphony Venti-Cool’s suitability as a cost-conscious cooling solution for large-scale community and religious spaces.