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Remote Control

29 July 2016 | Updated 01 January 1970

Monitoring water temperatures to reduce the risk posed by Legionella bacteria can be time consuming and costly. Regular visits from engineers to undertake this monitoring are also disruptive and in sensitive buildings such as care homes and hospitals this can be a particular concern to managers and occupants, whispers Bob Harris - Technical Director AEC.

AEC is operating a remote water temperature monitoring system and we can demonstrate that it has resulted in fewer/shorter visits and an increased level of reporting.

Under HSG 274, water temperatures should be checked for compliance on a monthly basis. As part of a remote monitoring system, the measured temperatures are recorded, with any non-compliant findings flagged up to nominated engineers for attention, with a brief description of the nature of the non-compliance. The problem can then be immediately addressed according to its nature and urgency.

The location of each sensor is based on site surveys of the premises and with reference to the Approved Code of Practice (ACoP) L8 risk assessments.


Case study

AEC has performed remote temperature monitoring for three years for a property management client that specialises in high-end residential apartments.

The system monitors temperatures in the client’s properties every 15 minutes and transmits temperature readings to the on-site hub. This data is then transmitted via GPRS to a web-based portal which issues a notification if any temperatures fall outside the Approved Code of Practice (L8) and HSG 274 guidelines. Web-based means the client receives up to the minute reporting and a round the clock response service.


How it works

The remote monitoring system comprises a gateway hub, a signal booster and temperature sensors. It feeds back data to hubs located in AEC’s north and south offices, automatically providing temperature readings from all of the monitored sites. These readings then immediately flag up if temperatures reach a point where there could be increased Legionella risk.

The system can store risk assessments, schematic diagrams and monthly reports. Having an automated system that can be accessed by any authorised user with internet access means it is very efficient for clients responsible for multiple sites to view their monitoring data/documentation at any time and from any location.


The benefits

Potential 40%-60% cost savings in temperature monitoring costs dependant on system type.

Easy access to temperature information for the client – giving big picture information on what the water systems are doing.

Less disruption to site with reduced or no visits to sites for temperature monitoring.

Transparency of remedial actions.

Reduced Legionella risk.

A greener approach to managing the building – by utilising technology and up to 50% cost savings on multi-skilled staff.

By Bob Harris (pictured) - Technical Director of AEC




Article written by Bob Harris | Published 29 July 2016


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