Tech OVN

Solution

District Cooling Monitoring — COP, BTU & Predictive Maintenance

One device, both sides of the chiller.

Combined electrical + thermal metering on every chiller, with live COP, kW/TR trending, and predictive-maintenance alerts. Titan Plus BTU timestamps both measurements on the same chip — so COP is an engineering metric, not an estimate — and the Energy Intelligence Platform turns the data into tenant billing, efficiency drift alerts, and LEED / IGBC-ready M&V.

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Tech OVN Energy Intelligence Platform — live district cooling COP dashboard with per-chiller efficiency tracking

The District Cooling Efficiency Problem

Every district cooling commissioning report has a COP number on page one. Then the meter gets forgotten. Condenser tubes foul, chilled-water setpoints drift, coil fouling pushes distribution ΔT below design, and by year three the plant is running 15% worse than day one — but nobody's measuring.

Across a 10,000 TR DCS, every 0.1 COP point is roughly ₹40 lakh per year in avoidable electricity cost. Across a portfolio of plants, the annualised loss compounds fast. The fix is simple: measure continuously, not just at commissioning — and measure both sides of the chiller on the same timebase so COP is a clean, defensible metric.

That's what Titan Plus BTU + the Energy Intelligence Platform does — in a single stack, with no third-party gateway in between.

What District Cooling Monitoring Delivers

Six capabilities that separate an engineering-grade district cooling monitoring stack from BMS energy modules.

Combined Electrical + Thermal Metering

Titan Plus BTU measures chilled-water flow, supply/return ΔT, and the chiller's electrical input on a single DIN-rail device — synchronous measurement on the same timebase, so COP is a real number rather than the average of two mismatched readings.

Live COP & kW/TR Trending

The Energy Intelligence Platform shows chiller and plant-level COP continuously, not just at commissioning. Alerts fire when COP drops more than 5% below baseline — often catching condenser fouling or CHW setpoint drift weeks before they show up on the bill.

Predictive Maintenance on Chillers

Compressor current signature, harmonics, vibration, and bearing temperature (via Titan Asset) surface degradation patterns months before failure. Plan maintenance rather than respond to it.

Tenant-Grade BTU Billing

EN 1434 Class 2 meters on each tenant connection deliver auditable kWh-thermal consumption and defensible monthly invoices. Matched Pt500 temperature probes, tamper detection, and remote reads.

Multi-Chiller Sequencing Analysis

For plants with 2+ chillers, the platform identifies which sequencing strategy minimises combined plant energy — often uncovering 5–10% savings through better staging or free-cooling economiser use.

Low-ΔT Syndrome Detection

The #1 silent killer in DCS operations: distribution ΔT collapses below design, pumping energy doubles. Continuous ΔT monitoring flags the problem days after it starts, not seasons later.

The Integrated Stack

Three products, one platform — purpose-built for district cooling plants and large chiller installations.

Titan Plus BTU

Combined electrical + BTU meter in one DIN module. Measures both sides of the chiller (thermal output + electrical input) with guaranteed synchronous timestamps — so computed COP is accurate.

Titan Asset

Condition monitoring add-on for chillers and cooling-tower pumps/fans. Vibration, temperature, and harmonic signature analysis via Titan's RS485 expansion.

Energy Intelligence Platform

Cloud dashboard: per-chiller and plant-level COP, kW/TR, tenant billing, multi-site portfolio view. Configurable alerts, PDF reports, API access.

Who this is for

Four operator archetypes deploying integrated chiller-plant monitoring today.

District Cooling Scheme Operators

10,000+ TR central plants supplying office parks, mixed-use townships, or campus developments. The 0.1 COP delta across the plant = ₹40+ lakh/year at this scale.

Large Commercial Chiller Plants

Office buildings, IT parks, hotels, hospitals with 500–3000 TR chiller plants running 12+ hours/day. Payback typically 12–18 months through efficiency drift detection alone.

LEED / IGBC-Rated Buildings

Ongoing M&V required for Platinum-level energy performance re-certification. Continuous COP logs with timestamps — not just commissioning snapshots — satisfy the M&V rigor auditors expect.

Energy Service Companies (ESCOs)

Performance-contract M&V on chiller-plant retrofits. Same hardware that built the baseline now proves the savings month-on-month.

Worked example — 1,500 TR DCS

A 1,500 TR district cooling plant serving a mixed-use office campus, 2 × 750 TR centrifugal chillers, design COP 6.1, running 10 hours/day × 250 days/year.

  • Commissioned at COP 6.0 (0.59 kW/TR). Annual electricity cost at design: ~₹2.6 crore.
  • Year 2: condenser fouling + CHW setpoint drift → average COP drops to 5.3 (0.66 kW/TR). Without monitoring, nobody notices until the invoice comes in.
  • With Titan Plus BTU + the platform: COP-drift alert at week 6 of year 2. Cleaning + setpoint re-optimisation restores COP to 5.9 within a month.
  • Savings captured: ~₹22 lakh in that year alone. Plus one avoided compressor rebuild (caught via Titan Asset vibration signature shift) — typically ₹15–25 lakh.

Payback on the monitoring stack: under 12 months, on a 1,500 TR plant. The case scales proportionally with plant size.

Frequently asked questions

Eight common questions on district cooling measurement, COP, and predictive maintenance.

A district cooling system (DCS) produces chilled water at a central plant and distributes it via insulated pipes to multiple buildings or tenants. Each connected user pays for thermal energy consumed (kWh-thermal or ton-hours). DCS is common in IT parks, mixed-use developments, airports, and campus projects — delivering lower capex per building, higher overall efficiency, and simpler tenant operations than standalone chillers per tower.
A BTU meter on each tenant's chilled-water connection measures flow and ΔT (supply vs return temperature), then computes thermal energy delivered in kWh-thermal or TR-hours. EN 1434 Class 2 accuracy is the typical benchmark for tenant billing. Titan Plus BTU handles this plus the electrical side of the chiller, on a single device.
COP (Coefficient of Performance) = thermal output ÷ electrical input. Measuring them with separate meters from separate vendors means different clocks, different sample rates, and different data paths — so computed COP is noisy at best, wrong at worst. Titan Plus BTU timestamps both measurements on the same chip, so COP is a clean, defensible metric. No other Indian manufacturer ships this integrated product.
Degrading chiller compressors draw more current for the same cooling output, shift their harmonic signature, run hotter, and vibrate differently. Titan Asset (via Titan's RS485 expansion) polls vibration and temperature sensors on the compressor; Titan Plus BTU tracks the current signature and efficiency drift. The platform flags anomalies against a baseline — typically 4–12 weeks before the chiller fails — enabling planned maintenance instead of emergency response.
Design ΔT for chilled water is 5–7 °C. Low-ΔT syndrome is when actual ΔT drops below that (often 3–4 °C) due to coil fouling, bypass leaks, or over-pumping. The symptom: the plant needs far more flow than designed, pumping energy doubles, and chillers run at part-load with worse COP. It's the #1 silent killer of district cooling efficiency. Continuous ΔT monitoring catches it within weeks; without monitoring, most plants lose 10–20% efficiency to low-ΔT syndrome without knowing.
EN 1434 Class 2 (±4% combined worst-case error) is the standard for commercial tenant billing. Class 1 (±3%) is used in some regulated utility contexts. Class 3 (±5%) is acceptable for monitoring only — not for inter-party billing. Titan Plus BTU meets Class 2 with matched Pt500 temperature probes.
Yes. Titan Plus BTU installs on the DIN rail in your existing panel — no plant downtime. The flow sensor is typically ultrasonic (clamp-on for DN50+) so even the chilled-water side can be retrofitted without cutting pipe. A typical retrofit for a 500 TR plant takes 1 day.
Typical outcomes in year 1: 5–10% energy savings from catching efficiency drift, 15–30% reduction in unplanned chiller downtime via predictive maintenance, plus the billing automation savings. For a 1,000 TR plant running 10+ hours/day, the electrical savings alone typically cover the monitoring stack in 12–18 months.

Related products & tools

The integrated measurement stack behind chiller-plant optimisation.

Titan Plus BTU

Combined BTU + electrical meter on a single DIN module. Synchronous measurement, live COP, EN 1434 Class 2.

Learn More →

BTU Meter Sizing Calculator

Work out the right BTU meter for your chilled-water loop — flow, ΔT, and accuracy class.

Learn More →

Chiller COP Calculator

Derive COP, kW/TR, EER, and IPLV from your measurements, benchmarked to ECBC 2017 and ASHRAE 90.1.

Learn More →

AI Condition Monitoring

Predictive maintenance on chiller compressors, pumps, and cooling-tower fans via Titan Asset.

Learn More →

Energy Intelligence Platform

Cloud dashboard with portfolio view, COP trending, tenant billing, and LEED / IGBC M&V exports.

Learn More →

Plan a chiller-plant monitoring deployment

Share your plant size, chiller count, and current M&V setup. We return a BOQ including Titan Plus BTU, condition monitoring, and the platform subscription in 48 hours.

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