Multiple high efficiency direct drive fans provide even, efficient air supply and inherent redundancy. Alternatively, the units can be fitted with speed controllable EC fans.
All DX units are supplied with twin compressor 4-stage cooling, whilst chilled water units provide stepless 0 to 100% cooling. Where applicable glycol economy cooling coils can be coupled to dry coolers or economy cooling chillers to maximise efficiency and minimise running costs.
Where required, the units can be supplied with electrode boiler humidifiers providing high efficiency stepless output of sterile steam, and electric heaters are available in case of reheat requirement.
This downflow range of air conditioning units are available in DX air cooled, water cooled or chilled water media with optional glycol cooling. All configurations have energy reduction features as well as heating or humidification options.
The DRU Range has been designed around a modular frame and panel design providing maximum unit strength as well as all round access where applicable. However, all maintenance and service has been designed for front access only where site restrictions dictate.
The units are designed to take return air at a high level which is then filtered and conditioned before being discharged via the base fan section located in the ventilated raised floor.
ABU DHABI +971 2 5557351
UAE
+974 44150543
DOHA
QATAR
OMAN
MUSCAT
+968 24 750205
+971 4 3352995
+971 4 8831401
JAFZA
DUBAI
Air Handling Eaton-Williams design and manufacture air handling plant for commercial and industrial applications. Applications include hospitals, supermarket chains, leisure stadiums, pharmaceutical buildings and office complexes with uniquely designed solutions to suit each project.
Service &
Maintenance
All types of HVAC
heating,
ventilating and air
conditioning
equipment are
supported by our
national network of
mobile
engineers or
residential
engineers for
optimum operating
efficiency.
Humidification
Specialist
manufacturers of
humidifiers and
steam generation
products.
M&E Services
Project design,
installation and
commissioning.
Refurbishment. CFC
and HCFC
recovery and
substitution.
Grilles & Diffusers
Our extensive range
of grilles and
diffusers are
available in a wide
range of shapes and
sizes and include
floor grilles for
server/data centres.
Chillers
Energy efficient
chillers up to a
capacity of 600kW
with the full
run/standby (N+1)
capability can be
offered. These can
also be fitted with
free cooling
capability and
qualify for ECA
(Enhanced Capital
Allowance) under the
Carbon Trust Scheme.
IPAC (CRAC) Unit
IPAC floor standing
air conditioning
units are available
in chilled water or
DX, cooling only
configuration. 15 -
80kW cooling
capacities available
in various
configurations
including up flow or
down flow air path,
chilled water or DX
cooling.
A full range of
options and
ancillaries are
available including
inbuilt humidifier
for room humidity
control.
DRU (CRAC) Unit
DRU Data Room air
conditioning
units are designed
for high density
load areas where a
large cooling duty
is required, from a
compact footprint,
but without
compromising the
critical application
of data centre
cooling.
80/100/120kW cooling
capacities.
Available in chilled
water, DX, DX
with water cooled
condenser and
glycol free cooling
configurations. A
full range of
options and
ancillaries are
available including
inbuilt humidifier
for room humidity
control.
Modular CDU System
A dedicated cabinet
to house up to 6 CDU
Modules to enable
initial install to
be completed
allowing the perfect
upgrade path. The
cabinet houses power
distribution and
chilled water
connectivity to the
6 CDU
Modules via manifold
and
couplings.Individual
CDU Modules can then
be simply plugged in
as the data centre
expands or heat
loads increase.
Alarms, room
temperature and
humidity data are
managed through the
central power
distribution system
giving one
connection point for
power and alarms.
CDU Module
The 20kW CDU Module
is a 6u rack
mountable, self
contained cooling
module capable of
providing closely
controlled cooling
water above dew
point to one or two
rear door heat
exchangers. Leak
free, quick release
couplings enable
rapid install and
connection to the
rear door heat
exchanger via ¾"
hose sets. Features
include dew point
temperature control
for condense free
operation, Auto fill
and bleed of
coolant, full alarm
monitoring and
connectivity.
CDU (Cooling
Distribution Unit)
Provides cooling
water for up to
6 rear door heat
exchangers.
Cooling capacities
of 100, 120 or
150kW with full
run/standby
capability (N+1).
Internal manifold
with leak free quick
release couplings
for easy
installation and
connection to the
rear door heat
exchangers via ¾"
hose sets. Chilled
water connections
(42mm / 1½") via
top or bottom. Dew
point temperature
control of cooling
water, internal CW
filtration. Auto
fill and bleed of
coolant. Full alarm
monitoring and
connectivity.
Server
Cabinets & Rear Door
Heat Exchangers (RDHx)
Powerful cooling
capacity, up to
30kW heat removed at
source and rejected
to water, not the
room.
Condense free
operation using dew
point controlled
water from the CDU.
6 ‘hot swap’ fans –
variable speed. 80%
front door venting.
1,000kg weight
loading and full
range of
accessories. Easily
installed via leak
free quick release
¾" couplings and
hose sets.
600mm wide – 20kW
cooling.
800mm wide – 30kW
cooling.
Vertical Mount
(Horizontal Air
Flow)
Elevation
Horizontal Mount
(Vertical Air
Flow)
Elevation
Triple Fan Unit
Twin Fan Unit
Note: All DRU units are 1090mm deep..
*The valves depicted are purely shown schematically and are physically located within the unit.
Key
Internal
DRU
unit
Internal
fan
base
section
Chilled water
flow pipework
Chilled water
return pipework
Chilled
water control
valve*
Controller
Chiller
Key
Internal
DRU
unit
Internal
fan
base
section
Dry cooler
return water
Dry cooler flow
water
Controller
External
air
cooled
condenser
Water
cool/Glycol cool
selection valve*
Water cooled
condenser
control valve*
*The valves depicted are purely shown schematically and are physically located within the unit.
Key
Internal
DRU
unit
Internal
fan
base
section
Dry cooler
return water
Dry cooler flow
water
Controller
External
dry cooler
Water cooled
condenser
control valve*
Key
Internal
DRU
unit
Internal
fan
base
section
Refrigerant
hot
gas
discharge
line
Refrigerant
liquid
line
Controller
External
air
cooled
condenser
Fan
speed
controller
Chilled Water
The chilled water system circulates water to absorb heat from the conditioned space at the indoor unit which is then rejected at the external chiller.
Twin cooling coil with multiple supply fans provide fully modulating 0 to 100% cooling complete with two or three port control valves.
Optional humidification control is provided by an electrode boiler humidifier and optional heaters provide reheat where required by the dehumidification mode.
Water Cooled with Glycol Economy Cooling
The water cooled DX system circulates refrigerant to absorb heat from the conditioned space at the indoor unit, which is then rejected via an external dry cooler or similar.
Twin evaporator coil / compressor circuits with multiple supply fans, provide redundancy with four stages of cooling and are coupled with an individual plate heat exchanger for water cooled heat rejection, complete with three port head pressure control valves.
Optional humidification control is provided by an electrode boiler humidifier and optional heaters provide reheat where required during dehumidification mode.
Water Cooled
The water cooled DX system circulates refrigerant to absorb heat from the conditioned space at the indoor unit, which is then rejected via an external dry cooler or similar.
Twin evaporator coil / compressor circuits with multiple supply fans, provide redundancy with four stages of cooling and are coupled with an individual plate heat exchanger for water cooled heat rejection, complete with three port head pressure control valves.
Optional humidification control is provided by an electrode boiler humidifier and optional heaters provide reheat where required during dehumidification mode.
Air Cooled
The air cooled DX system circulates refrigerant to absorb heat from the conditioned space at the indoor unit, which is then rejected at the external air cooled condenser
Twin evaporator coil / compressor circuits with multiple supply fans, provide redundancy with four stages of cooling and are coupled to two individual low noise level air cooled condensers, complete with fan speed controls.
Optional humidification control can be provided by an electrode boiler humidifier, and optional heaters provide reheat where required during dehumidification mode.
Control Features
■ Fully programmable.
■ Data logging.
■ Standalone or group control.
■ BMS interface.
■ Remote monitoring.
■ Energy saving control strategies.
Monitored Information and Alarm Points
■ Temperature.
■ Relative humidity.
■ Airflow.
■ Filter condition.
■ Refrigerant monitoring.
■ Water detection.
■ Humidifier status.
■ Heater status.
■ Fire shutdown.
■ VFC relay alarms.
■ Smoke detection.
Units can be monitored locally or remotely, and if required, an enhanced ‘web enabled’ controller can be supplied, providing password restricted access from a suitable Internet access point.
Where required, multiple units can be networked together to provide group or run/standy control.
Additionally, the controller monitors the in-built safety devices of the unit which constantly ensure the healthy state of key components. In the unlikely event of a component malfunction the item is automatically isolated to enable the plant to continue running, and an alarm signal will be generated.
The DRU is fitted with a fully programmable unitary controller complete with display/user interface. The controller monitors the temperature and relative humidity of the return air and activates cooling humidification or dehumidification to provide precise and efficient conditioning of the supply air.
*No humidity control. **DX Air Cooled Unit.
Notes: DX Unit cooling duties are based on 24ºC / 45% Relative Humidity / 35ºC Ambient. Chilled Water (CW) Unit cooling duties are based on 24ºC / 45% Relative Humidity and 6ºC Flow / 11ºC Return
Features Benefits
Model DRU8 shown.
The Moducel range of high efficiency Data Room Units, are designed for high density load areas where a large cooling duty is required from a compact footprint, but without compromising the critical application of data centre cooling.
DOWNFLOW COOLING
80 -120 KW
M O D U C E L
