Chiller Efficiency Meter — kW/TR + BTU on a Single DIN Rail Module
One Meter. Electrical + Thermal. Real kW/TR.
The first DIN rail meter combining utility-grade Class 0.5S electrical metering with EN 1434 Class 2 thermal metering. Watch chiller-plant kW/TR, COP, and tonnage move in real time — without bolting on a second meter.
Trusted by energy & industrial leaders
At a glance
- What it is
- A combined chiller-efficiency meter — Class 0.5S electrical metering and EN 1434 Class 2 thermal metering on one DIN-rail device, with real-time kW/TR and COP.
- Best for
- Chiller plants, district cooling, data-centre cooling, and ECBC-compliance teams needing synchronous electrical + thermal data.
- Standards
- IEC 62053-22 (Class 0.5S electrical), EN 1434 Class 2 (thermal), ECBC-aligned. IAPWS-IF97 water properties on-device.
- Interfaces
- Dual PT1000 RTDs, LVCT current inputs, WiFi + Ethernet + RS485 (Modbus RTU/TCP). On-device COP and kW/TR.
Why Titan Plus BTU
Three reasons facility managers, ESCOs, and chiller plant engineers specify Titan Plus BTU for combined electrical and thermal metering.
Globally Unique
No product on the market combines kWh + BTU in one DIN rail device. Separate meters mean two vendors, two installations, two data streams.
Actionable Efficiency
See the direct relationship between electricity consumption and chiller/boiler efficiency. COP trend curves reveal degradation in real time, not in a monthly report.
Real-Time COP
Coefficient of Performance calculated on-device every measurement cycle. Thermal kWh ÷ electrical kWh — live, logged, and trended.
The Problem
District cooling operators, chiller plant managers, boiler room engineers, and HVAC teams currently need two separate meters to understand system efficiency — an electrical meter for compressor or boiler power, and a thermal meter for cooling or heating output. Two vendors, two installations, two data streams, and a manual COP calculation in a spreadsheet.
Most facilities skip the thermal meter entirely and fly blind on efficiency. When a chiller degrades or a boiler loses efficiency, nobody notices until the energy bill arrives.
Titan Plus BTU eliminates this by measuring electrical and thermal energy in one device — and calculating efficiency automatically.
How It Works
Three measurement channels, one efficiency number — calculated on-device every cycle.
Electrical Side
Class 0.5S
Same Class 0.5S metering engine as Titan Base — voltage, current, power, energy, harmonics, power factor.
Thermal Side
Dual PT1000 RTD + Flow
Dual PT1000 RTD inputs measure supply and return water temperatures. Flow data comes from an external flow meter via Modbus RS485. Thermal energy calculated using IAPWS-IF97 water property tables — accounting for temperature-dependent density and specific heat capacity.
Combined
Real-Time kW/TR & COP
Both efficiency metrics calculated on-device every measurement cycle. kW/TR for chiller-plant performance work, COP for refrigeration and heat-pump work — logged, trended, and exposed over Modbus.
kW/TR = kWelectrical ÷ TRcooling
COP = kWhthermal ÷ kWhelectrical
Applications
Wherever electrical input drives thermal output, Titan Plus BTU measures both — and proves the efficiency.
Chiller Plant Efficiency
Real-time COP monitoring. Identify degrading compressors, fouled condensers, and low refrigerant charge from the combined electrical + thermal data.
Boiler Efficiency
Track thermal output vs. electrical input for boilers and heating systems. Spot efficiency losses from scaling, fouling, or burner degradation before they compound.
District Cooling / Heating
Per-tenant thermal billing with combined electrical monitoring. One device per connection point instead of two.
Data Centre Cooling
PUE and cooling efficiency tracking. Combined energy reporting for regulatory compliance and operational optimisation.
District Cooling & Chiller Plant Metering
Titan Plus BTU is purpose-built for district cooling networks and large chiller plants — the deployment patterns where a combined electrical and thermal energy meter replaces a stack of separate devices. One DIN rail unit per chiller circuit gives you simultaneous kWh and BTU on a single timebase, defensible kW/TR and COP without spreadsheet stitching, and per-tenant thermal billing for district-cooling operators using a single meter instead of two.
The same architecture handles chiller BTU meter deployments for malls, hotels, IT parks, hospitals and campus-style developments, plus pPUE / cooling-efficiency metering for data centres. ECBC 2017 kW/TR reporting, ASHRAE 90.1 efficiency benchmarking, and ESCO performance- contract defensibility are all on the same hardware.
- →District cooling operators (UAE / KSA / Qatar): per-tenant chilled-water billing combined with electrical metering, single device per service point.
- →Indian malls + IT parks: ECBC-compliant chiller-plant kW/TR reporting, identifying degrading chillers before the audit reveals the loss.
- →Data centres: cooling-side energy metering for accurate pPUE, part-load efficiency capture across the full load range.
- →ESCOs: synchronous electrical-and-thermal capture for performance-contract M&V where two unsynchronised meters would not survive ASHRAE Guideline 14 audit.
For deployments across multiple chillers, Titan Plus BTU integrates with the District Cooling solution stack and the Data Centres industry brief for fleet-wide rollouts.
Technical Specifications
Full datasheet — electrical measurement, thermal measurement, communication, and mechanical.
Electrical Measurement
| Parameter | Specification |
|---|---|
| Accuracy Class (Active) | Class 0.5S |
| Accuracy Class (Reactive) | Class 1 |
| Voltage Range | 48V to 500V AC |
| Current Range | 100A / 200A / 400A / 800A (via LVCT) |
| Frequency | 50/60 Hz |
| Parameters | V, I, P, PF, f, kWh, kVARh, kVAh |
| Harmonics | Up to 31st harmonic (per phase) |
| Phases | 3 phase or 3 × single phase |
| Advanced Metrics | Load Hours, Max Demand, Power Cycles |
| Load Profile | 15 / 30 / 60 min intervals (configurable) |
| TOD Zones | Up to 8 tariff / TOD zones |
| Event Log / Warnings | Under/Over Voltage, Overcurrent, Power cycles, Harmonics, On/off Events, runtime |
Thermal Measurement
| Parameter | Specification |
|---|---|
| Temperature Sensors | Dual PT1000 RTD |
| Flow Input | External ultrasonic flow meter via Modbus RS485 |
| Thermal Calculation | EN 1434 compliant |
| Combined KPIs | COP, EER, thermal kWh, ΔT |
Communication
| Parameter | Specification |
|---|---|
| Internet | WiFi and Ethernet |
| Wired / Local | RS485 (Master or Slave) |
| Protocols | Modbus RTU/TCP |
Mechanical
| Parameter | Specification |
|---|---|
| Mounting | DIN rail |
| Dimensions | 94 × 89 × 69 mm |
| Operating Temp. | −25°C to +70°C |
Standards
IEC 62052-11 · IEC 62053-21/22 · EN 1434 · IEC 61010 · IEC 61000 (EMC)
How Titan Plus BTU Compares
The four ways chiller plants and district-cooling networks measure efficiency today — and how a single combined-metering device changes the install, the data, and the contract.
| Capability | Titan Plus BTU | Titan + Separate Titan BTU | Imported Chiller-Plant Manager | Spreadsheet COP from Bills |
|---|---|---|---|---|
| Real-time kW/TR & COP | Yes — on-device every cycle | Yes — post-processed | Yes | Monthly, manual |
| Synchronous timebase (electrical + thermal) | Single device, single clock | No — two clocks | Controller-driven | No |
| Devices per chiller | One | Two | Controller + meters | None |
| Form factor | DIN rail | 2× DIN rail | Panel + controller | n/a |
| IEC 62053 + EN 1434 dual compliance | Class 0.5S / Class 2 — both | Both | Vendor-dependent | None |
| BMS integration | Modbus RTU/TCP | Modbus RTU/TCP | Vendor-specific | None |
| ECBC kW/TR reporting | Built-in | Composable | Built-in | Manual |
| ESCO performance contract defensibility | Yes — synchronous capture | Limited — clock drift | Yes | No |
| Install + commission time | Hours | Hours – Day | Weeks | n/a |
| Indicative cost (India) | ₹17k – ₹36k | 2× device cost | ₹2 – 5+ lakh | Free, but blind |
Energy Intelligence Platform
Titan Plus BTU is a complete efficiency solution — the meter and the Energy Intelligence Platform work together to deliver what no other product can. The meter calculates COP on-device every measurement cycle. The platform turns that into actionable intelligence — COP trend curves that reveal compressor or boiler degradation over weeks, electrical vs. thermal correlation analysis, efficiency benchmarking across multiple chillers or boilers, and automated alerts when COP drops below your configured threshold. Combined electrical + thermal dashboards give facility managers and ESCOs a single view of system efficiency that previously required two separate meters, two vendors, and a spreadsheet.
Commission From Your Phone
Use the Titan App to commission Titan Plus BTU on site — configure WiFi, set up PT1000 sensor inputs, enter flow meter parameters, and verify live COP readings from your phone before leaving. Once commissioned, all monitoring and analysis happens on the Energy Intelligence Platform.
Learn More About the App →Size Your Deployment
Two free engineering calculators that pair with Titan Plus BTU for chiller-plant and district-cooling specification:
- →BTU Meter Sizing Guide (free download) — engineering reference for sizing thermal energy meters: flow-meter selection, RTD pairing, EN 1434 Class 2 requirements.
- →BTU Meter Sizing Calculator — work out the right meter size and flow-sensor type for your chilled water, hot water, or district cooling loop.
- →Chiller COP Calculator — derive COP, kW/TR, EER, and IPLV from thermal and electrical measurements. Benchmark against ECBC 2017.
Frequently Asked Questions
Common questions about kW/TR, COP, combined electrical & thermal metering, and chiller-plant deployments.
The Titan Family — One Platform, Eight Applications
The same accuracy, connectivity, and design language across the full metering range.
| Product | Description | Status |
|---|---|---|
| TITAN | Core smart energy meter. WiFi + Ethernet + RS485 | Active |
| TITAN AUDIT | Rapid deployment logger. Split-core CT, plug & play | Active |
| TITAN EV | EV charge controller. OCPP 2.0.1, IEC 61851 | Active |
| TITAN PQ | Power quality meter. Harmonics, sags, swells, flicker, transients | Coming Soon |
| TITAN ASSET | Condition monitoring. Energy + vibration + temperature | Coming Soon |
| TITAN PLUS BTUYou are here | Chiller efficiency meter. kW/TR + BTU on a single device | Coming Soon |
| TITAN BTU | BTU meter. Chilled water, hot water, district cooling | Coming Soon |
| TITAN COMPLIANCE | Fire pump monitoring. NFPA 25 + IS 15301 compliance | Coming Soon |
Ready to measure both sides of the chiller?
Talk to an engineer about Titan Plus BTU for your chiller plant, district cooling network, boiler room, or data-centre cooling project.