Close control and turbocor chiller

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CLOSE - CONTROL SYSTEMS AND TURBOCOR CHILLERS
FOR TEMPERATURE CONTROL OF THE TECHNICAL
ROOMS

2www.jetrun.ro
Tudor Arghezi Street 21, Bucharest, RO|+40213118724
Content
About us
Our philosophy, mission and values
Services and products
RC Group
Close Control Air Conditioning
Turbocor Chillers
Reference projects
Partners
Contact

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About us
Supplier of complete solutions for Heating, Ventilation and Air Conditioning
Jetrun EnergoEco active since 2007 as technical
and commercial representative of leading
manufacturers in the HVAC industry.
Six full time employees;
HVAC equipment distribution company;
Full service company with external partners:
design, specification and sizing, installation,
maintenance;
Main partner: Wolf Heiztechnik, including
Kuntschar u. Schlüter and Dreyer & Bosse
Significant partners: Hygromatik, Apen, MITA,
Cabero, Teddington, HiDew, SMARDT

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About us
Our philosophy, mission and values
Orientation to solutions.
We offer not only products
but real solutions tailored to
customer needs
We are always looking for the
best troubleshooting for your
project and judge the final result
according to three criteria: -
functionality, efficiency, cost /
benefit ratio.
Energy efficiency
is for us a core value based
on which we judge the final
result of projects we are
involved
Social Responsibility
Green orientation
we allocate substantial resources
with the desire to help society to
use the resources rationally

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Quality
Guarantee of quality offered by the best
suppliers in the industry!
Assistance
From the feasibility study and design to
installation and commissioning.
Warranty
Warranty Standard 24 months. Extensions
of warranty service contracts.
Installation
We provide complete assistance and
assembly services through our authorized
partners.
Service
Network of authorized specialists and stock
of spare parts.
Complete offering: product + full range of services

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Industrial equipments
Air-handling equipment Powersystem BHKW
Heating technology Ventilation equipment

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Residential equipments
Heating technology Ventilation equipment
Control equipmentSolar equipment

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RC Group
www.del-clima.com
RC Group offers tailor-made solutions that
meet with accurate precision the Customer
needs proposing:
• Efficient and dedicated solutions;
• Critical contexts products;
• Instruments to speed-up the process for
the realization of its projects.
Nowadays RC Group focuses on:
• IT cooling, precision air conditioning;
• Chillers, process cooling;
• Heat pumps & Multifunction, cooling &
heating;
• Artificial Intelligence, advanced software
tools for the selection and the management
of the units.
DeLclima is listed on the Milano stock exchange
since 2nd Jan 2012. De’Longhi Trust is the
majority share-holder of DeLclima.
http://www.borsaitaliana.it/borsa/azioni/scheda.ht
ml?isin=IT0004772502&lang=it

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IT COOLING
Precision air conditioners designed for
data centers, telephone exchanges,
mobile communications and mission
critical applications.
HEAT PUMPS & MULTIFUNCTION
Multifunction liquid chillers and heat
pumps suitable for installation in
supermarkets and retail, banks, public
offices, airports, hospitals.
CHILLERS
Liquid chillers for mechanical,
electronic, food, textile, pharmaceutical
and chemical industry.
ARTIFICIAL INTELLIGENCE
Advanced software tools for selection,
energy efficiency calculation,
networking and remote monitoring of
produced units.
RC Group products range

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Temperature control
Close Control Air Conditioning (CCAC) was
created in the 70’s in order to meet the
needs of a very technological and
specialized élite: keeping the thermal-
hygrometric (temperature and relative
humidity) and air purity conditions within
strict limits in rooms where the first
computers used to work.
It was clear that those devices emitted a
great amount of heating, and that their
working operations could be guaranteed
only at appropriate indoor climate
conditions.

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Closed Control Air Conditioning has the aim to provide the right electronic and other
devices working which emit sensible heat by keeping and controlling, within strict limits,
the treated air’s following parameters:
Temperature Relative Humidity Purity
MAIN APPLICATIONS
DEFINITION
Data Centers Telephone rooms
Containers for mobile TLC
Measurement rooms
Power Rooms CAT Rooms Radar Rooms
Control Rooms

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CCAC air conditioning series are wider for versions/configurations/options equipment,
and they use the most advanced control systems:
AIR CONDITIONERS MAIN CHARACTERISTICS
Single or double refrigerant circuit
Up-flow/down-flow/displacement air
delivery
Advanced microprocessor
Control on supply and return air
Wide optional availability

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NEXT EVO INV DX
Under/Over versions
7 ÷ 102 kW
Close control air conditioners equipped
with BLDC scroll compressors for
matching with remote air cooled
condenser.
NEXT EVO INV DW
Under/Over versions
6 ÷ 119 kW
Close control air conditioners
equipped with BLDC scroll
compressors and built in water
cooled condenser.
NEXT EVO CW S
Under/Over versions
7 ÷ 138 kW
Close control air conditioners for
chilled water feeding.
NEXT EVO CW S PLUS
Under version
125 ÷ 225 kW
chilled water feeding with separate
fan section.
NEXT EVO CW K PLUS
Under version
152 ÷ 279 kW
chilled water feeding with separate
fan section.
NEXT DX
Under/Over versions
6 ÷ 97 kW
equipped with scroll compressors
for matching with remote air cooled
condenser.
NEXT DW
Under/Over versions
7 ÷ 108 kW
equipped with scroll compressors
and built in water cooled condenser.
NEXT EVO CW K
Under/Over versions
15 ÷ 172 kW
chilled water feeding.
AIR CONDITIONERS FOR DATA CENTER FOR PERIMETER INSTALLATION

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AIR CONDITIONERS FOR DATA CENTER FOR IN ROW, IN RACK
INSTALLATION
NEXT MTR
Over version
7 ÷ 15 kW
Air conditioners for metrology labs.
NEXT DL
Displacement air delivery version
7 ÷ 51 kW
Close control air conditioners with
displacement air delivery.
COOLSIDE EVO DX SYSTEM
in row/in rack versions
4 ÷ 42 kW
Direct expansion air conditioning
system for high density rack and
blade servers.
COOLSIDE EVO CW
in row/in rack versions
20 ÷ 55 kW
Chilled water air conditioners
for high density rack and blade
servers.
COOLROW DX Inv
in row version
14 ÷ 40 kW
Direct expansion air conditioners
servers.
COOLROW CW
in row version
50 ÷ 61kW
Chilled water air conditioners
servers.
AIR CONDITIONERS FOR DATA CENTER FOR PERIMETER INSTALLATION

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ENERGY SPLIT
Horizontal or vertical air flow
4 ÷ 16 kW
Split system air conditioners with
free-cooling system.
MARK
Horizontal air delivery
6 ÷ 9 kW
Packaged air conditioners with
free-cooling system for outdoor or
indoor installation.
MINIPAC
Horizontal air delivery
4 ÷ 19 kW
free-cooling system for outdoor
installation.
ENERTEL
Under/Over versions
5 ÷ 15 kW
free-cooling system for indoor
installation.
ENERTEL DL
Displacement air delivery version
6 ÷ 15 kW
free-cooling system for indoor
installation.
AIR CONDITIONERS FOR
TELECOMMUNICATION

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CCAC WORKING CHARACTERISTICS @26°C / 50%; 35°C
(mod. NEXT.DX.O.S 082.P2 H7 RC Group)
As for total cooling capacity close control air conditioner has higher energy
efficiency and lower power input:
• TOTAL Cooling Capacity: 81,4 kW
• SENSIBLE Cooling Capacity:76,4 kW
• Sensible Heat Ratio: SHR = 0,94
• Compressors power input: 19,1 kW
• Air Flow 20.870 mc/h
• Fans power input: 4,18 kW
• EER (on TOTAL) = 3,5 kW/kW
• EER (on SENSIBLE) = 3,3 kW/kW
• OFF-COIL Air Temperature: 14,0 °C

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DATA CENTER INDOOR LAY-OUT
PERIMETER INSTALLATION
Conditioners are placed along walls in Data Center or in aisle/technical outdoor space.
The latter solution allows control and maintenance operations without entering the
electronic equipment area.

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IN-ROW / IN-RACK INSTALLATION
Conditioners are installed between a rack and another with air supply in the cold aisle and
air return from the hot aisle (in-row installation), or with air supply and return directly
inside the rack (in-rack installation).

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HOT / COLD AISLE
Electronic devices taking cold air from the front and discharging hot air from the back
allow to create hot and cold aisles within the Data Center and make uniform (in the whole
volume) room temperature not necessary.

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CONTAINMENT
Cold aisle closure with doors and covers between racks to keep the “produced” cold in
the occupiedvolume. In some installations the hot aisle is closed and kept at negative
pressure.

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Turbocor chillers
SMARDT OIL FREE CHILLER
Best in class energy efficiency
All Smardt chillers, are designed to optimize
the performance of the oil-free centrifugal
compressors from Danfoss Turbocor Inc.
These compressors use oil-free magnetic
bearings and variable-speed drives to deliver
superior efficiencies than conventional oil-
lubricated centrifugal, reciprocating, scroll and
screw compressors.

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Temperature control systems
Smardt-Chiller (Turbocor)

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Smardt-Chiller - Advantages
Magnetic bearings  eliminate frictional losses
 Highest efficiency up to an IPLV > 11
 Very low starting current < 5 amps
 Lowest noise
 100% oil free  eliminates oil system maintenance costs
One moving part assures long service life
Inbuilt Redundancy  multiple compressor principle
 Smardt understands it better than anyone else
According the AHRI
Certification Program

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Revolutionary compressor technology
Inlet-Guide-
Vanes
1. Stage2. Stage
Solenoid valves
for cooling
Inverter
(24 kHz)
Motor-
windings
Motor & Bearing
Controller
Softstart (< 5A)

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Revolutionary compressor technology
The rotor shaft is held in position (gap shaft/bearing: 0.2mm) with ten separately
controlled electro magnetic cushions which continually changes in strength to keep the
shaft centrally positioned.
bearing power consumption: 180 W vs. conventional bearing >10kW

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Smardt-Chiller - Range
Water cooled Air cooled Remote cond.
Type WA,
TT300, TT350
Type WA,
TT400, TT500
Type AC
TT300, TT350
Type L
TT300, TT350,
T400
Ref. Capacity*
200 – 2250 kW
Ref. Capacity*
400 – 4000 kW
Ref. Capacity*
200 – 1600 kW
Ref. Capacity*
200 - 2600 kW
60 – 650 ton 110 – 1150 ton 60 – 450 ton 60 - 750 ton
cond. temp. <
57°C
cond. temp. <
43°C
cond. temp. <
57°C
cond. temp. <
57°C/ 43°C
compressor
max. 6
compressor
max. 8
compressor
max. 4
compressor
max. 6
Condenser
water leaving
max. ~50°C
Condenser
water leaving
max. ~40°C
Ambient max.
43°C/ 46°C
* ARI conditions

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Smardt-Chiller - Efficiency
Diagram: comparison uses generic industry performance data for water-cooled
chillers (data source AHRI)
 Lowest lifetime operating costs

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Smardt-Chiller - EER Characteristic
Diagram: EER comparison under various capacities between conventional Screw,
Scroll and the Smardt – Chiller. Based on Eurovent
 Lowest lifetime operating costs

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Smardt-Chiller - Soft Start
Diagram: Smardt chiller, require only 2 amps for start-up, compared with 500-600
amps in conventional machines. (100TR/ 350kW Chiller)
 Further savings for owners, who can reduce maximum power loads and
reduce backup generator size.

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Smardt-Chiller - Oil-Free Performance
As this comparative ASHRAE (research Study 601) study showed, lubricated chiller's
operating efficiency is routinely lost in the early years as a result of oil clogging of heat
transfer surfaces. The average overcharge of oil in the system was 12.88%, this
equated to an average energy loss of about 21%
Diagram: oil in the cooling system of
installed chillers
Diagram: e.g. only 3.5% oil in the
refrigerant charge reduces system
efficiencies by 8%

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Smardt-Chiller – Multiple circuit principle
Smardt dual circuit chiller:
Example Project 1000TR/ 3500 kW nominal + redundancy
Conventional technique:
500TR 500TR 500TR
286TR 286TR 286TR 286TR
running: 500TR
running: 858TR

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Smardt-Chiller – Redundancy
Multiple compressor principle
Multiple chiller principle
Multiple circuit principle

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Smardt-Chiller - Controller
• Color touch panel
• Self explanatory display
• Basic compressor data available
• Bus communication available
• Remote monitoring available
• and many other options

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Keep in mind
Both cooling systems are commonly used for cooling data centres. The choice of cooling
system is dependent on several factors, but in general one can say that, for lower cooling
outputs (data centres with ICT devices of a total power output of c. 300 kW) DX systems are
used and for larger outputs above 300 kW it is worth using CW systems. The exact point at
which either DX or CW systems are applied cannot however be stated with such certainty.
between chilled water use or direct expansion use is not so marked.
Heavy duty service 24h/365d/year
Load sharing(all units work at partial load)
Air cooled chillers and condensers in low noise version
Chillers with free-cooling sections for installations in cold/continental climate zones
Variable water flow to chillers. The combination of inverter-driven compressors and
flooded evaporators allows to dispel the taboo of a constant water flow in the chiller
resulting in pumping energy saving.

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SMARDT references worldwide
Fox Studios Sydney
 about 4000 more
MY Oasis
Great Hall of the People, Beijing
Daimler Benz Germany
Syndey Opera House

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SMARDT CASE STUDY
Daimler Benz Mannheim
Project description:
Data-centre cooling – Air-cooled, low noise level
Technical Data:
Load: 1.000 kW
Chilled water: 18 / 10 °C
Ambient max. 35°C
Compressors: 3
Length: 10.700 mm
width 2.400 mm
height 2.950 mm
Noise pressure level 55 dB(A) in 10m
weight 8.000 kg
Commissioned 2011

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SMARDT CASE STUDY
Urban West Business Park Building, CA
Project description:
project according California’s energy reduction and green
house gas emissions policy; reduced noise levels
Project outcomes:
• Controlled Comfort Cooling
• Reduced Environmental Impact
• Improved Energy Efficiency & Superior Energy Savings
• Reduced Operating Costs
• Improved Reliability
Technical Data:
Load: 320 TR
Water cooled
Compressors: 3
Noise pressure level 67,5dB(A) in 10 m

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RC GROUP references worldwide
NEXT DX DL
Direct expansion
close control air
conditioners with
displacement air
delivery
Period: 2014
Application: IT cooling - Airport
End user name: Bari Palese “Karol Wojtyla“ Airpoirt,
Bari (Italy)
Plant type: Precision Cooling
Total installed Cooling capacity: 136kW
Installed equipment: nr.16 x direct expansion close
control air conditioners with displacement air delivery;
nr.16 x remote air cooled condensers.
Project: Bari/Palese Airport. The new terminal will develop a total area of
29,000 square meters divided into terminal, offices and commercial areas.
The structure has been sized for an ever increasing traffic, to reach over
3.6 million passengers per year in the next 15 years.
Focus: Precision air conditioning, Displacement, Reliability.
Solution: NEXT DX DL, TEAM MATE
TEAM MATE
Remote air cooled
condensers
Italy

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Period: 2014
Application: IT Cooling – Data Center
End user name: Primary French Bank - Two Data
centers (Belgium)
Plant type: Data Center
Total installed Cooling capacity: 8,1 MW
Installed equipment: nr.6 x air cooled liquid chillers in
“A” class energy efficiency equipped with screw
compressors and axial fans; nr.4 x air cooled liquid
chillers with free-cooling system in “A” class energy
efficiency equipped with screw compressors and axial
fans.
GLIDER EVO FREE CLA
Free-cooling liquid chillers in
A class energy efficiency
GLIDER EVO CLA
Air cooled liquid chillers with A
class energy efficiency
Project: Supply for “A” class energy efficiency chillers for two new data
centers of a primary French bank. The data centers satisfy the closest
energy efficiency standards of free-cooling maximization. Each data center
is composed of three buildings with a total covered surface of 50.000mq
dedicated to the data processing.
Focus: “A” class energy efficiency, high energy savings, reliability, free-
cooling, glycol free.
Solution: GLIDER EVO CLA, GLIDER EVO FREE CLA
TWO NEW DATA CENTERS FOR A
PRIMARY FRENCH BANK
Belgium

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Period: 2014
Application: IT cooling – Data Center
End user name: Cosmote MSC (Greece)
Plant type: Data Center
Total installed Cooling capacity: 264kW
Installed equipment: nr.8 x close control air
conditioners for chilled water feedingProject: Cosmote is the Greek mobile market leader since 2001 with
millions of customers and thousands of employees. The group also
operates in Albania and Romania.
Focus: precision air conditioning, chilled water, low noise
Solution: NEXT EVO CW
NEXT EVO CW O
Close control air
conditioners for
chilled water feeding with
upflow air delivery.
Greece

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Period: 2013
Application: Data Center
End user name: HP, Inverno (Italy)
Plant type: Precision air conditioners, Heat pump liquid
chiller
Functions ensured by RC Group equipment:
Cooling
Total installed Cooling capacity: 734 kW
Installed equipment: nr. 10 x precision air
conditioners, nr. 1 x heat pump liquid chiller
Project: HP realized one of the more largest in Europe and sophisticated
versions of Data Center. It’s is a compartmentalized building, designed to
house and manage a large number of equipment, computing infrastructure
and the data they contain, to ensure their physical safety and management.
Focus: precision air conditioning, reliability, energy saving, low noise
Solution: GLIDER HP, NEXT DX U
NEXT DX U
Precision air
conditioners with
downflow air
delivery GLIDER HP
Heat pump air
conditioners
Italy

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PARTNERS

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CONTACT US
ADDRESS
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020943, Bucharest, RO
+40213118724
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WEB
office@jetrun.ro
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