SAV Watchman Provides aM&T
From Metering To Billing
The launch of SAV's new Watchman services meets an urgent need to track energy use to ensure systems work at peak efficiency.
Designed to meet all Automatic Monitoring and Targeting (aM&T) requirements, SAV Watchman provides a 24/7 sentinel - reducing consumption by continuously monitoring performance against target. Weather compensation, flow and return water temperatures are key Watchman focus points.
Energy savings of between 20-50% are made possible and the carbon footprint of the building can be shrunk down to an acceptable size.
The service is inexpensive, and inclusion of aM&T services will give the building a better energy rating under the new Part L legislation.
Watchman operates rather like a fly-by-wire aircraft - concentrating on the controls serving the building's environmental systems to ensure that flow temperatures, circulation through the building and return temperatures are continuously trimmed for optimum performance.
Watchman has been carefully designed - and competitively priced- to provide an economic solution for every type of application.
Three-tier package
It's a three-tier package. Clients may opt for simple Watchman energy metering in line with CIBSE TM39; Watchman Report aM&T to provide regular monthly energy accounting, or Watchman 24 aM&T alarmed surveillance over the building’s energy performance combined with an interactive BEMS.
"Watchman makes a perfect synergy with SAV's Modular FloCon and AcquaCon solutions for distribution within heating, cooling and domestic hot water systems," explains SAV Managing Director Lars Fabricius.
“Energy meters can be integrated into the Modules at any stage during the life of the project. Data from the meters is transmitted to aM&T processing equipment for performance monitoring and billing where required.
CIBSE believes that at least 5-10% of the energy used in non-commercial buildings can be saved just by fitting meters, so Watchman makes the perfect choice for apartment blocks.”
Watchman Report
For buildings of all types equipped with BMS facilities Watchman Report offers a low cost over-view of the performance of every facet of the system - including the BMS itself!
Watchman data is collated into a monthly report prepared by a qualified energy consultant. The report will compare actual consumption against budget - adjusted to take fluctuations in annual weather patterns into consideration. The monthly report will address issues relating to the building’s performance and will include recommendations for reducing the carbon footprint.
Watchman 24
Projects without the budget for expensive BMS can now meet energy saving targets by using the new Watchman 24 service.
Watchman 24 uses specially developed mini BMS systems including weather compensation and controls. Watchman engineers can remotely monitor the performance of the central plant 24 hours a day through a web browser. The building’s facility manager can also view the central plant in the same way. Trimming of the heating and cooling systems’ set points can be carried out remotely.
The Watchman 24 service is designed to issue alarm reports if flow temperature and pressure parameters move outside set point ranges. The alarm service is an inexpensive way of continuously monitoring the building’s energy performance as well as ensuring a quick reaction to plant failures.
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Watchman Report:
SAV Watchman automatically logs the building’s meters at 30-minute intervals. Based on this data, monthly SAV Watchman Reports are prepared to analyse the building’s energy usage against various benchmarks. Watchman Reports will typically help to identify potential energy savings of 20.0% - and more.
Watchman 24
Watchman 24 is fully interactive with weather compensation, set points and controls for remote monitoring and adjustment of the building’s flow temperatures. “Trimming” of building controls can significantly reduce energy consumption and identify system issues such as poor balancing and poor control valve authority.
SAV can continuously remotely monitor the building’s “vital statistics” and facilities managers can also view the building’s energy screens via the internet.
Watchman 24 also offers an automatic alarm generation facility that permits rapid response to any detected system failures.
Field-proven technology
The systems used by SAV Watchman have been adapted for the UK market from field-proven technology. The service utilises software programmes developed by EMT Nordic, a subsidiary of Danish energy giant NRGi. These include systems for collection and processing of raw energy data, monitoring and optimisation of heating systems, handling energy and function alarms and data import/export.
EMT's Energy Monitoring Portal (EMP) is an internet-based protocol developed in liaison with Danfoss, one of the world's leading control manufacturers.
As a result EMP interfaces easily with a range of Danfoss aM&T controls including ECL heating system controllers and Sonometer energy meters, which combine to form a cost-efficient BEMS. The Danfoss Sonometer energy meter can accept up to two pulsed outputs from other meters - therefore readings from gas, electricity or water meters can be simply and easily added onto the data network via a direct connection into the Sonometer.
