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GHM

A control system for complete water control and the most efficient use of water.

Product Overview

As a complete water controls solution, the GHM controller allows for the precise metering of water over the hydroBLU™ pads of our adiabatic heat rejection equipment. The GHM calculates the flowrate of water required for the wetting process based on load state and ambient conditions.

The GHM connects with the GMMnext fan controller to allow for optimization of both water and energy usage for any application.

Benefits at a glance

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CLEANING MODE

To keep the heat exchanger bare coil clean, fan rotation is reversed at regular intervals.
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EFFICIENCY MODE

Ensures the perfect balance between water and electrical power consumption. If efficiency mode is activated, the wetting controller looks for the most cost-effective operating point between fan speed and water volume.
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FULL LOAD OPERATION

Boosting the capacity of the heat exchanger by increasing the amount of water used to keep the cooling system running smoothly.
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PARTIAL LOAD OPERATION

In phases of reduced demand, partial load operation ensures that only as much water as the pad can evaporate is used.
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WET BULB CALCULATION

The control system measures the outside temperature and humidity in order to determine the wet bulb temperature and ensure efficient water consumption.
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METERED WATER

Optimal water demand is permanently calculated depending on the ambient and operating conditions, setting the control system to wet hydroBLU™ pads efficiently.
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FROST PROTECTION

Automatically activated when temperatures are below 5°C, frost protection is used to avoid damage to the hydroBLU™ system.
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HYGIENE MODE

Hygiene mode ensures that during long phases in which the wetting is not used, the system is automatically drained in order to prevent the formation of bacteria.