MONTH IN FM
NOVEMBER 2020 43
FMJ.CO.UK
NEW NHS NIGHTINGALE HOSPITAL IN
EXETER IS AIR CONDITIONED WITH
TOSHIBA SHRM-E HEAT RECOVERY VRF
High-e iciency Toshiba variable refrigerant
flow (VRF) air conditioning – supported by some
5km of electrical cabling – has been installed
as part of a fast-track project for the new NHS
Nightingale Hospital at Exeter. Toshiba Carrier
UK Ltd (TCUK) is a joint venture between
Toshiba Carrier Corporation and Carrier in the
United Kingdom, and is part of Carrier Global
Corporation (NYSE: CARR), a leading global
provider of innovative heating, ventilating and
air conditioning (HVAC), refrigeration, fire,
security and building automation technologies.
The 116-bed facility,
operated by the Royal Devon
and Exeter NHS Foundation
Trust, is part of the UK’s
network of seven Nightingale
Hospitals designed to treat
patients with coronavirus, and
remains on standby in case
extra capacity is needed for
patients with COVID-19.
The air conditioning project
was designed and installed
in seven weeks, and includes
46 Toshiba Super Heat
Recovery Multi (SHRM-e)
air conditioning systems
linked to the manufacturer’s
high capacity 14kW cassette
indoor units. The system
serves hospital wards, testing
facilities, meeting rooms and clinical support
areas. A high performance Toshiba split system
also cools the hospital’s server room.
“It is a substantial project and involved high
heat gains due to the intensive care medical
equipment used on wards. It required careful
planning due to the complexities of the site and the
critical healthcare application,” said Gary Tidball,
who headed the design and installation project for
Mechanical and Electrical contractor TClarke. “We
selected Toshiba because of its reliability
and the company’s large capacity cassettes,
which enable a high density of cooling with
minimal intrusion of indoor units into the
space.
“The support we received from Toshiba
throughout the project was outstanding.
Seven-day-a-week working was required
to meet the project timetable, and early
on in the project, Toshiba’s regional sales
manager Wayne Dolley himself delivered
units to site over a weekend to ensure work
could progress.”
To optimise air circulation and cooling,
TClarke converted the 4-way cassettes to
two-way units, augmenting lateral coverage
along the length of wards. Closing o two
side-outlets in this way delivers increased
cooling and air-throw to the remaining
open louvres.
Toshiba’s SHRM-e three-pipe heat
recovery VRF air conditioning system
sets an industry benchmark for energy
e iciency performance and continuous
heating, achieving a
world-first European
Seasonal Energy
E iciency Ratio (ESEER)
of 8 in most capacities.
The system uses
an advanced rotary
compressor, developed
and manufactured
by Toshiba, which
uses a two-stage
compression process
for improved e iciency
and performance. Wear
surfaces on compression
vanes are treated with a
high-tech Diamond-Like
Carbon (DLC) coating,
giving outstanding
hardness, wear resistance
and reliability. This enables a significant increase
in compressor rotation speed, resulting in a higher
displacement volume – up to 50% greater than for
the previous generation of VRF systems, delivering
a higher duty from a smaller compressor, with less
power.
More details on Toshiba SHRMe here:
https://www.toshiba-aircon.co.uk/product/shrme-3-
pipe-heat-recovery-outdoor/
www.toshiba-aircon.co.uk
/
/www.toshiba-aircon.co.uk
