2001
Fenchurch Street, London
MacWhirter Limited are currently installing Mitsubishi electric variable flow simultaneous
heat recovery systems in the square mile finance centre.
The project is a full refurbishment of the first skyscraper built in the City of London.
The project will consist of 40 VRF systems and 260 fan coils when the contract is completed
2000
Star City Birmingham
MacWhirter Limited, installed
all Heating, Ventilation and Air-conditioning services to
four large trading outlets in this major new retail development.
The
installations have met the new ventilation codes of practice to ensure optimum
ventilation for all occupants.
The
outlets are Themed Restaurants and Bars, which are recognised nationally as:
Old
Orleans
De-Altos
Bar
Censsa
Long
Island Iced Tea
2000
Wessex Water
On this project, MacWhirter
Limited installed Carrier rooftop package units,
Airedale close control downflow units, Hitachi VRF and Hitachi split systems.
Environmental
issues were a major consideration for this contract.
All refrigerant used on site was non-ozone depleting R407C.
For instance, should someone switch on the air-conditioning system the windows
would automatically close and if the room was unoccupied the air-conditioning
system
would automatically switch off.
1999
R F Brookes, Rogerstone, South
Wales
Click on Pictures to
enlarge
On
this brand new 20,000m2 food
production unit, MacWhirter designed and installed
air-conditioning and
ventilation services.
The
most notable feature regarding this development was that it was the first major
project in the
United Kingdom, where 10 off Mitsubishi Electric variable flow
simultaneous heat recovery systems
were selected, operating on R407C refrigerant
to serve the adjoining 4300m2 office block on the project.
1999
P A Consulting, Bromley
During building
refurbishment of this training complex, MacWhirter Limited were employed to
provide
air-conditioning to lecture theatres and leisure areas.
Part
of the installation utilised the latest range of Carrier cassette type split
systems operating on a
recently introduced high pressure HFC Refrigerant R410A.
This refrigerant, whilst being a blend, has no
temperature glide between the different chemicals, thereby enhancing performance
and efficiency when
compared with other non-ozone depleting refrigerants being installed due to the
imminent ban on HCFC22.
R410A
has operating pressures 60% higher than any other refrigerant used for
air-conditioning and
considerable care and attention must be applied to components and installation
practice.
This
is the first known installation utilising R410A within the UK.
1999
7 Manchester Street, London
MacWhirter
Limited installed one of the first Daikin VRV Plus systems in the UK on this
project.
The VRV Plus concept
integrates two or three VRV outdoor units together via a junction box so
that the various units operate as one system, therefore saving on the amount of
pipework normally
required were 3 separate systems used, also saving on valuable space within the
mechanical
riser and reducing the overall capital cost.
1999 Spear, Leeds & Kelloggs, London
MacWhirter
Limited installed three Toshiba VRF systems to this office area.
The office had four existing Daikin VRV systems already in operation.
MacWhirter
Limited had to relocate all the existing fan coil units to suit the new office
layout.
The new Toshiba systems were installed to help cope with the additional heat
load added by new
dealer desks and the corresponding increased heat gains for computers and
occupancy.
In
addition, air-conditioning was fitted to a new multi-million pound comms room.
This utilised two Toshiba split systems operating on a run and standby system
controlled and
monitored by a separate control panel providing automatic changeover should a
fault occur.
1998
Morriston Hospital, South Wales
MacWhirter
designed and installed refrigeration chillers providing nearly 2 megawatts of
cooling
capacity to the Burns Unit operating theatres.
The
system was enhanced with Ice Storage to reduce peak ambient operation, thereby
improving
chiller efficiency and reducing electrical costs.
At night, the chillers build 5000 kilowatt hours of ice which is used during the daytime.
1997
Royal Mail, Oxford Street, London
MacWhirter
Limited installed Daikin VRV heating and cooling heat pumps within the Marketing
Sales and Finance Offices of the Royal Mail.
All
the work was carried out at night to minimise disruption and as Principal
Contractor we
demonstrated considerable care with no safety incidents.
1993
St Rollox APC
MacWhirter
Limited, installed 56 Daikin VRV systems at a new sorting hall in Glasgow.
This is one of the largest installations carried out using the VRV or VRF
concept.
1990
Blackburn Ice Arena, Lancashire
MacWhirter
Limited designed and installed a 60 metre by 30 metre Ice Rink for public ice
skating and professional competition.
The
project consisted of all refrigeration plant for ice production hydraulic
installation ice rink piping
and ice paid construction. Additional items included environmental control and dehumidification for
the Arena.
The
complete mechanical and electrical services were designed and installed through
IDMS MacWhirter,
a joint venture company.
MacWhirter
Limited continues to provide full maintenance on the operation.
The
rink construction and refrigeration plant were installed without using any CFC
products which were subsequently
banned from use 10 years later due to
environmental damage to the ozone layer.