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Cooling Tower Automation

Lower the Approach.
Lower the Energy.
Automatically.

The closer your cooling tower’s leaving water temperature is to the ambient wet bulb temperature, the less your chillers have to work. SmarterHU automates your cooling towers in real time — minimising approach temperature and driving down energy costs across your entire plant

Explore Products

15%

Chiller energy saved via approach control

Live

Approach & wet bulb tracking

24/7

Automated fan & cell control

Auto

Blowdown & water management

The Problem

When cooling towers underperform, chillers pay the price.

A poorly managed cooling tower raises condenser water temperatures — forcing chillers to work harder, consume more energy, and wear out faster. Most buildings have no idea this is happening.

01. High approach temperature
When leaving water temperature drifts above wet bulb, every degree of excess approach costs the chiller 2–3% in additional energy consumption.
02. Uncontrolled fan operation
Fans running at full speed regardless of load — wasting tower energy and causing unnecessary noise, vibration, and mechanical wear on motors and gearboxes.
03. Poor water management
Without automated blowdown and make-up water control, scaling and biological fouling degrade heat transfer efficiency and raise condenser water temperatures.
04. No cell sequencing
Multiple tower cells run without coordination — all on or all off — instead of being staged intelligently to match actual cooling demand and minimise energy use.
05. Scaling & fouling
High TDS levels and unmonitored water chemistry lead to scale buildup on fill media and heat exchange surfaces, silently degrading tower performance over time.
06. No predictive maintenance
Fan motors, fill media, drift eliminators, and pumps degrade without warning. By the time a fault is visible, the damage — and the energy waste — has already been done.
Platform Capabilities

Complete cooling tower intelligence.

Everything needed to run your cooling towers at peak efficiency — from fan control and cell staging to water chemistry and predictive maintenance.

Approach temperature control
Continuously compares leaving water temperature to wet bulb and adjusts fan speeds via VFD to maintain the minimum achievable approach — maximising chiller efficiency at all times. .

Core optimisation
VFD fan speed control
Fan motors are modulated in real time via variable frequency drives — running only as fast as needed to hit the target leaving water temperature, saving significant fan energy.

Fan energy savings
Multi-cell sequencing
Stages cells in and out based on actual cooling load — preventing all cells from running simultaneously when partial operation is sufficient, and ensuring even wear across cells.

Load matching
Automated water management
Monitors TDS levels, conductivity, and basin levels continuously. Automated blowdown and make-up water control keeps water chemistry within safe limits — preventing scale and fouling.

Scale prevention
Energy metering & reporting
Tracks power consumption of fans, pumps, and auxiliaries in real time. Generates reports showing tower energy vs. chiller energy savings — proving the full value of automation.

ROI visibility
Predictive alerts & maintenance
Detects abnormal vibration, pressure drops, and motor performance trends. Maintenance alerts are triggered before failures occur — eliminating emergency breakdowns and cooling loss.

Predictive maintenance
The SmarterHU Difference

Unmanaged towers vs. SmarterHU automation.

Before automation

Unmanaged cooling tower

After Automation

With SmarterHU Automation

How SmarterHU Works

Sense. Decide. Control.

SmarterHU connects IoT sensors to your cooling tower cells and integrates with your chiller plant — giving the system everything it needs to automatically minimise approach temperature around the clock.

01. Instrument the tower

Wet bulb sensors, water temperature probes, flow meters, TDS sensors, and power meters are installed across all cells. Data streams to the cloud continuously.

02. Calculate optimal setpoints

The platform compares leaving water temperature to the ambient wet bulb in real time — continuously calculating the target fan speed and cell configuration needed to hit minimum approach.

03. Control automatically

Fan VFDs, blowdown valves, and cell staging are all adjusted automatically — no manual intervention. The system responds to load changes, weather shifts, and chiller demand in seconds.

The Approach Temperature Principle

Every degree closer to wet bulb saves real money.

Approach temperature is the gap between your cooling tower’s leaving water temperature and the ambient wet bulb temperature. The smaller this gap, the colder the condenser water entering your chiller — and the less energy your chiller needs to produce cooling.

A 1°C reduction in approach temperature typically reduces chiller energy consumption by 2–3%. On a large plant, that translates directly to lakhs in annual energy savings — from one automated parameter.

SmarterHU optimises approach temperature continuously, across every cell, at every hour of the day — something that simply isn’t possible with manual operation or basic timers.

Get Started

Your cooling tower is leaving
energy on the table.

Book a free assessment. We’ll measure your current approach temperature and show you exactly what SmarterHU can recover.

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