Eight Toshiba systems used by Andrews Air Conditioning to cut
building’s CO2 load
Eight Toshiba systems used by Andrews Air
Conditioning to cut building’s CO2 load
The transformation of a large office block in the
Manchester suburbs, Rutherford House, formerly British
Nuclear Fuels Limited design department, into a flagship
for regeneration by New Age Properties, relies heavily
on the installation of high quality, controllable and
efficient air conditioning utilising the latest
equipment from Toshiba installed by experienced
Accredited Installer, Andrews Air Conditioning.
Previously, the building relied on air conditioning
provided by a fixed speed R22 refrigerant-based system.
The latest Toshiba equipment, utilising R410A and
inverter technology enables energy cost savings of up to
£14,000 to be made each year and provides a CO2
reduction of 24,000 kg for the building over a twelve
month period. Additionally, the project qualified for
the Government’s Enhanced Capital Allowance scheme,
which enables the owners of the building to offset up to
30% of the total project cost in year one, significantly
improving both cash flow and profitability.
Brian Beetson, Toshiba’s Area Specification Manager,
explains the context, “most of the buildings on the
surrounding industrial estate either have no air
conditioning or old inefficient central plant
installations. This office refurbishment programme, is
setting new standards for lettable, efficient, business
accommodation in the area.”
The re-clad shining glass and aluminium shell with its
thick concrete core looks like something from Silicon
Valley as it is glimpsed through the trees of a leafy
campus. Andrews designed the project in conjunction with
Toshiba’s Project Team, working to the specifications of
the client and their consultant. The newly installed
replacement air conditioning system is key to the
comfort of the tenants.
The floors have been laid out on an open plan basis with
a typical floor area of 600 sq metres. The block has
five and three storey elements. Eight Toshiba VRF SHRM2
three-pipe systems serve the building, one to a floor,
so that each can be let individually. It is a ducted,
heat recovery scheme to enable maximum layout and energy
usage flexibility.
The building management system used is a Toshiba control
system and is WindowsTM based with a package to cover
each floor so that the landlord can provide individual
floor control but retain overall control for billing
purposes.
Beetson continues: “the air conditioning system that
Andrews has installed can achieve a Co-efficient of
Performance (COP) of 5 at 40% (typical) operating load
requiring just a 20 Amp power supply because this
inverter-controlled system has automatic soft start and
can operate at a lower synchronous speed than previous
systems. Altogether the system is providing almost 700
kW of heating and cooling to this large building. In the
past this might typically have been provided by water
based central plant but today’s high efficiency R410A
VRF systems cope well with this challenge.”
Within the project, ease of installation and project
management to finite time frames was critical – this was
assisted greatly by the use of the Toshiba equipment.
Andrews carried out the modifications to the existing
air handling system and undertook the essential site
removal and disposal of the previous out-dated plant.
The compact new systems were installed within the
footprint of the existing plant village on the roof so
there were no civil engineering or structural
complications from increasing the overall cooling and
heating capacity for the building.
Email:
marketing.uk@toshiba-ac.com
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Arundel Jones Associates Ltd
Hill Farm, Linton Hill, Maidstone, Kent ME17 4AL
Tel : 01622 745333
news@buildingdesign.co.uk
Registered in England and Wales No. 07334149
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