Trend Control Systems - Frankfurt Hotel Looks and Feels Good
 With
its spectacular circular shape, the new Radisson SAS
‘Blue Heaven ’ Hotel in Frankfurt makes an eye catching
addition to the city skyline. Opened in November 2005,it
also intends to impress with the high standard of
comfort that it is able to offer its guests. Playing an
important part in this is a Trend building management
system that provides individual control of the air
conditioning in every single guestroom. The BMS has been
interfaced with the hotel ’s front office computer which
helps prevent energy waste, and also with the fire
damper controls. It was supplied and engineered by
Stangl GmbH (one of Trend ’s German network of
accredited systems integrators), who was appointed by
the main contractor on the project, HOCHTIEF
Projektentwicklung GmbH.
The 20-storey Blue Heaven hotel has 450 bedrooms, a
conference suite, a ballroom and – 18 floors up – a
swimming pool. Every bedroom is air conditioned by a fan
coil unit fitted with a LonMark compliant
Trend IQL15 controller. The latter regulates the room ’s
temperature by modulating the FCU’s heating and cooling
valves and controlling its fan speed. Guests can adjust
conditions via a wall-mounted panel.
When a guest checks in,the IQL automatically starts
controlling room temperature to the occupied setpoint.
On check-out it reverts to a setback level. This is
possible owing to the interface between the BMS and the
hotel ’s Fidelio front office system, data from which is
communicated to the IQL controllers via a Trend OPC
server. The IQLs connect to LonWorks communication buses
(two per floor), which in turn link to an internet work
that runs the full height of the building.
also connected to this are an Ethernet-based ‘963 ’
supervisor (the system ’s main operator interface)plus
the OPC server and the IQs that control the boilers,
chillers and main air handling plant. The whole
installation functions as a single integrated system.
Through the ‘963 ’ supervisor, the technical manager and
his staff can not only adjust system control settings
and view data relating to the HVaC plant but are also
able to monitor the position of its 610 fire and smoke
dampers. (Should any of the latter inadvertently close
the '963 ’ would generate an alarm). The BMS
interfaces with the LonWorks based electric system via
Trend LONC gateways. It connects to the Modbus-linked RK-Tec
fire damper controls via a modified Trend XNC interface
developed specifically for this project.
Authorised personnel are able to access system settings
and monitored data from almost anywhere in the hotel
using just a laptop running Internet Explorer, which is
all that is needed to create a ‘client ’ 963 supervisor.
They can do this from any of the guestrooms, all of
which have wireless LaN access to the Internet – and
through that to the 963 server. On the plantroom control
panels there are IQ View touch-screen operated displays;
from any one of these any part of the BMS can be
interrogated.
Email:
energysavings@trendcontrols.com
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Arundel Jones Associates Ltd
Hill Farm, Linton Hill, Maidstone, Kent ME17 4AL
Tel : 01622 745333
news@buildingdesign.co.uk
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