Your Chiller Plant Is Running. Your Building Management System Isn't. — How ISRO APEP Aluva Fixed That in One Week

At ISRO’s facility in Aluva, four Voltas chillers were installed, wired, and running — but the Building Management System (BMS) automation layer was completely missing.

Every start, every stop, every pump sequence required the operator to physically walk to the panel.

EnSmart closed that gap in 7 days without replacing a single piece of existing hardware.

Key Results

  • 4 Voltas chillers automated
  • 1 week full BMS deployment
  • 0 manual trips after go-live
  • 2 days trial to commissioning

The Problem: A Chiller Plant Without Building Management System Automation

Imagine a hospital where every time a patient needed medicine, the doctor had to walk to the pharmacy, open the cabinet, count the tablets, and bring them back personally.

No pharmacist. No system. Just manual effort.

That is exactly what a chiller plant without Building Management System automation looks like.

At ISRO APEP Aluva:

  • Four Voltas chillers were installed and running
  • Condenser pumps were operational
  • Controller wiring was complete
  • But there was no central BMS automation layer

The Voltas controller could not:

  • Execute time-based schedules
  • Send fault alerts
  • Sequence pumps automatically
  • Communicate with a central BMS system

So operations were managed manually:

Morning: walk → start pump → start chiller
Evening: walk → stop system
Night fault: discovered only during physical inspection

His job title said “BMS operator.”
But most of the work still depended on manual intervention.

Why Hardware Alone Is Not Enough

This is one of the most common misconceptions in facility management.

Installing chillers and controllers does NOT mean you have a Building Management System.

True BMS automation means:

  • Systems run without human physical intervention
  • Scheduling is automatic
  • Faults are detected and alerted in real time
  • Monitoring happens from a workstation

At ISRO APEP Aluva, key gaps were:

  • No automated scheduling
  • No remote visibility
  • No fault alerts
  • No operational resilience

One operator on leave meant operations depended entirely on manual effort.

The Solution: A BMS Integration Layer, Not Replacement

Think of it like a translator between two systems that cannot directly communicate.

EnSmart did NOT replace the Voltas controllers.

Instead, the approach was:

  • Study existing IO signals
  • Map all inputs and outputs
  • Build control logic on top
  • Add BMS software layer
  • Create operator graphics interface

A DDC controller acted as the “brain” sitting above the existing system.

This enabled full Building Management System automation without replacing any hardware.

Open Integration Approach

EnSmart’s SmartNova Platform supports:

  • BACnet/IP
  • Modbus TCP/RTU
  • MQTT

This makes it possible to integrate with:

  • Voltas
  • Carrier
  • Daikin
  • Blue Star
  • Trane
  • Mitsubishi
  • Any OEM controller

Implementation Timeline: 1 Week Deployment

PhaseWork Done
      Week 1  IO study, logic design, graphics development, panel fabrication (off-site)
    Days 1–2        On-site installation, signal mapping, system verification
    Days 3–4      Full automation of 4 chillers, pump sequencing, operator training
  End of Week 2           Complete BMS go-live, manual operation eliminated

Most engineering was completed before reaching site — ensuring zero disruption.

What Changed After Go-Live

The role at the facility changed completely.

Before:

  • Walking to panels
  • Manual switching
  • Physical monitoring

After:

  • Monitoring dashboard
  • System-based control
  • Exception handling only

Operational improvements:

  • All chillers run on automated schedules
  • Real-time status visible on BMS screen
  • Fault alerts triggered instantly
  • No dependency on manual presence
  • Foundation ready for energy optimization

Who This Case Study Is For

This approach is relevant for facilities with:

  • Government buildings
  • Defence installations
  • Industrial plants
  • Pharma facilities
  • IT parks
  • Institutional campuses

If your chillers are installed but not integrated into a central BMS, you likely have the same gap.

The key question:

Does your system still require a human to physically operate panels for routine tasks?

If yes, that gap can be closed without replacing existing hardware.

Learn More

Read the full case study here:
https://ensmart.ai/case-study/isro-apep-chiller-plant-automation-bms-integration

Visit Our Website:

https://ensmart.ai


Location: Erode,TamilNadu

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