IT Cooling Solutions

STULZ Explorer ChillerCooling performance for your critical application

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HIGHDENSITYCOOLING

CHILLERUNITS

ROOMCOOLING

AIRHANDLINGUNITS

MODULARDATA CENTERCOOLING

DIRECT FREE

COOLING INDIRECT FREE COOLING

DATACENTER

COOLING

The Whole Range of Cooling Solutions from a Single Source

For more than 40 years, sensitive information and communication technology has been cooled by air conditioning systems made by STULZ – everywhere in the world.Our formula for success is both simple and sophisticated:we are engineers with a vision and business people who knowa lot about technology.

STULZ products and services are the result of many thousandsof projects. This wealth of experience, our power of innovation,

and our know-how enable us to offer our customers the whole spectrum of our cooling products and services at the highest quality level.Around the globe, our entire range of products and servicescomplies with international standards.

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STULZ Explorer – Cooling performance for your critical applicationThe STULZ Explorer range represents a new generation of high-efficiency chillers for industrial applications and boasts a cooling capacity from 160 to 563 kW.

The ever-increasing need to reduce operating consumption in industrial processes has led to the realization of a range that is strongly orientated to maximum performance in terms of efficiency, while maintaining strength and reliability. The STULZ Explorer chillers use the environmentally friendly refrigerant R410a, which delivers high performance, a condenser coil with Microchannel technology and V-geometry, an electronic expansion valve and modulating fan adjustment to ensure maximum efficiency and precision.

4 Features and Options Reliable performance

6 Efficiency Minimal energy consumption

7 Free Cooling Efficient solutions with Indirect

Free Cooling

8 Control and Monitoring Microprocessor-controlled

monitoring

12 Production Sites Close to you all over the world 14 STULZ Worldwide Global expertise in chiller cooling

from over 1,000 successful projects

Contents

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Features and Options

Efficiency

Design

Free Cooling (FC)The STULZ Explorer chiller is available in a Free Cooling version with integrated Free Cooling coils for smaller models and pre-assembly to the dry cooler for larger models.

Condensing battery with V-geometry The condensing module with cross V-geometry allows greater unit modu-larity, with emphasis on air distribution and maximum component accessibility.The condenser coils use Microchannel technology, which allows high efficiency, very reduced thickness and reduced quantities of refrigerant.

EEV electronic expansion valve The gas temperature and evaporation pressure are optimized with high precision, thanks to the use of the elec-tronic expansion valve. When correctly calibrated, this function not only increases chiller efficiency, but also its proper use, thus increasing its reliability.

Energy rating The new STULZ Explorer range is in the high energy class. Depending on the models and version, the energy class can be A or B, with EER that can easily exceed the value of 3 under nominal Eurovent conditions, resulting a good compromise between Capex and Opex.

Reliability The units are designed according to strength and flexibility concepts, ensuring the integrity of the machines during normal transport by both truck and container. The components and the assembly logic are designed to ensure maximum reliability and accessibility for maintenance. The double circuit with tandem or three compressors per circuit ensures optimum operation at different loads and a long service life, with particular attention to industrial applications that require intensive use (24/365 operation).

Super Silent (SL)In the Silent version (EN 14511), the completely separate compressor chamber enables the precise reduction of axial fan speed and can reduce the sound pressure level.

Quick connectionsAll hydraulic connections are equipped with quick connections for greater ease of installation and maintenance as required.

Outdoor installation The STULZ Explorer range is designed to be used in all types of outdoor instal-lations. The electrical panel with IP54 protection guarantees proper safety measures for the electronic and electrical components. The various options allow an extension of the operating limits at both low and high temperatures.

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Modular unit sizes

H x W x D (mm)

2,406 x 2,208 x 3,140

H x W x D (mm)

2,406 x 2,208 x 4,447

H x W x D (mm)

2,406 x 2,208 x 5,820

H x W x D (mm)

2,406 x 2,208 x 7,130

Version Cooling Capacity (horsepower)

Standard 060 | 070 | 080 | 090 | 100Low Noise 060 | 070 | 080 | 090Free Cooling 060 | 070

Version Cooling Capacity (horsepower)

Standard 110 | 120 | 140Low Noise 100 | 110 | 120Free Cooling 080 | 090 | 100 | 110

Version Cooling Capacity (horsepower)

Standard 160 | 180 | 200Low Noise 140 | 160

Version Cooling Capacity (horsepower)

Low Noise 180 | 200

Electronic Control WEBThe STULZ Explorer range is equipped with a STULZ electronic control board, which allows all components to interoperate correctly. Upon request, it is also possible to install a touchscreen display and an optional WEB gate for remote connection.

Hydronic Group (HK)An integrated hydronic unit (for smaller sizes) or beside the machine (for larger sizes) is available as an option. The hydronic unit includes a pressurized tank, expansion tank and pump, and can also be supplied with a dual pump.

Protective treatment on the coilsFor the condenser, protective treatments with epoxy or cataphoresis coatings are available. These treatments are recom-mended when the chiller is located in an environment with aggressive atmospheric agents. In the Free Cooling version, a cataphoresis treatment on the condenser of the refrigerant circuit is standard.

Protective gridsFor all versions, protective grids in the same material and color of the chiller housing are available. The size and strength of the meshes are designed to allow proper air flow in the condensers while preventing access to the components.

Control Options

Anti-vibration mountsSupports specifically designed to bear the chiller's weight and eliminate transmission of the vibrations to the underlying structure during operation.

Flow switchComponent that verifies the circulation of the fluid in the circuit. Installed on the return pipe to the chiller. The flow switch is electrically connected to the chiller and reports the absence of fluid circulation, preventing damage to the hydraulic components.

Soft startDevice for reducing mechanical stress during compressor start-up. The device partialises the starting current of the compressors by reducing the stress on the power supply line and preserving the compressors' components.

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STULZ Explorer chillers were developed to cover an entire range of applications (from process industry to data centers). STULZ Explorer units are designed for a high energy class (Class A) or to work in extreme environmental conditions. They also come in very precise configurations with temperature controls dedicated to the application.

In almost all applications, the thermal load and ambient temper-ature conditions are highly variable. STULZ Explorer units closely match all environmental and load conditions, achieving a high seasonal efficiency (ESEER) – even higher than 5. High ESEER values lead to significant energy savings.

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4.6

3.8

4.8

3.4

4.4

3.2

4.2

3

4

2.8

Efficiency

EERModel WPA060 WPA070 WPA080 WPA090 WPA100 WPA110 WPA120 WPA140 WPA160 WPA180 WPA200Standard 3.12 2.92 3.03 2.96 2.92 3.18 3.10 3.03 3.28 2.91 2.80Low Noise 2.88 2.65 2.83 2.73 3.11 2.98 2.88 3.10 3.08 2.92 2.82Free Cooling 4.25 4.09 4.11 4.11 4.13 3.98 – – – – –

ESEERModel WPA060 WPA070 WPA080 WPA090 WPA100 WPA110 WPA120 WPA140 WPA160 WPA180 WPA200Standard 4.63 4.68 4.36 4.59 4.60 4.93 4.74 4.59 4.76 4.96 4.81

ESEERPartial load Weighting coeff. Air temperature100% 3% (0.03) 35 °C75% 33% (0.33) 30 °C50% 41% (0.41) 25 °C25% 23% (0.23) 20 °C

ESEER

The seasonal energy efficiency index (seasonal energy efficiency ratio) is a parameter that indicates the seasonalefficiency of an air conditioner or a refrigerator group.

ESEER = 0.03 x EER100% + 0.33 x EER75% + 0.41 x EER50% + 0.23 x EER25%

25% 50% 100%75%

EER

Efficiency at partial load (water 7/12 °C, air 35 °C)

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STULZ Explorer units (WPA060 to WPA110) can be selected with onboard Free Cooling, while versions with a higher cooling capacity are designed for connection to a dry cooler unit. Chillers with integrated Free Cooling are provided with Free Cooling coils for the water circuit, a three-way valve and a hydronic group with 1 pump. As standard, the Free Cooling configuration also includes the cataphoresis treatment of Microchannel condensing coils in order to avoid galvanic corrosion due to the proximity of other water exchangers. The cost effectiveness of a system with integrated Free Cooling and its ROI (return on investment) depend on the working condi-tions, the cooling unit efficiency and the climatic conditions on the installation site.

All these factors are integrated into STULZ selection software, which is able to simulate chiller operating conditions in more than 300 cities in the world, calculating the annual saving of money and energy (kWh) very accurately. For instance, it is possible to enter the altitude value of the installation and to factor in the density of air in the chiller performance calculation. The kWh cost can also be varied. During the simulation, the software also takes the variation of fans speed in Mix-Mode (combination between Free Cooling and compressor cooling) into consideration.

In temperate climates north and south of the equatorial zone, the energy-saving advantages of Indirect Free Cooling can be fully exploited. Electricity consumption for data center air condi-tioning will drop by up to 60%.

Temperate climate

Free Cooling

Percentage and number of hours per year of temperatures up to and including 18 °C(up to 27 °C possible according to ASHRAE TC 9.9 – 2011)

Hamburg London Moscow Canberra Madrid Istanbul New York BeijingJohannes-

burgParis

Sao Paulo

Annual no. of hours below 18 °C 1

7,660 7,010 7,529 6,492 5,637 5,444 5,577 5,341 5,667 6,708 3,219

Percentage 2 87% 80% 86% 74% 64% 62% 64% 61% 65% 77% 37%

Annual no. of hours below 27 °C 1

8,720 8,727 8,728 8,399 7,817 8,198 8,114 7,865 8,637 8,593 8,312

Percentage 2 99.5% 99.6% 99.6% 96% 89% 94% 93% 90% 99% 98% 95%

1 Hours per year of temperatures up to and including 18 °C / 27 °C2 Yearly percentage of hours with temperatures up to and including 18 °C / 27 °C

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Control and Monitoring – Electronic Control STULZ C2020The “mind” of the STULZ Explorer Screw chiller is the Stulz C2020 electronic control, developed by Stulz to achieve the best performance from every component. In the Stulz Explorer range with screw compressors have been implemented new functions in order to obtain the best management of the new components. Memory and calculation speed are increased, allowing a better and faster control of all the components and preserving the durability of the units. The numerous functions and parameters are summarized in a few simple steps and screens, which allow the user to easily keep under control the chiller correct operation. A 7” liquid crystal display with touch screen acts as an interface between the user and the chiller. The display reports all the information on: operation status, working time, alarm history and alarm signals. Furthermore it allows to start, stop and modify the chiller operation.

C 2020 Electronic Controller is equipped with the following pre-loaded functions :

• Sequencing = to connect through a specific line more chillers and manage the components as a unique chiller

• Emergency Cooling = to activate the chillers in the same line, in case the active chiller cannot make up for the overload of the user.

• Redundancy = activates alternatively the chillers and guarantees the service continuity in case of fault of a chiller.

• ModBus RTU = to manage remotely the chiller through standard interfaces

• Stulz Protocol = to connect the chiller to the Stulz supervision components

• Unloading = guarantees the chiller partialised operation even at high temperatures

• Antifreeze

C 2020 Electronic Controller is equipped with the following pre-loaded functions :

• Sequencing = to connect through a specific line more chillers and manage the components as a unique chiller

• Emergency Cooling = to activate the chillers in the same line, in case the active chiller cannot make up for the overload of the user.

• Redundancy = activates alternatively the chillers and guarantees the service continuity in case of fault of a chiller.

• ModBus RTU = to manage remotely the chiller through standard interfaces

• Stulz Protocol = to connect the chiller to the Stulz supervision components

• Unloading = guarantees the chiller partialised operation even at high temperatures

• Antifreeze

C 2020 Electronic Controller manages :

• Compressors = start, switching off and slide valve partialisation, within the limits provided by the supplier

• Fans = depending on the power requested and on the active function (chiller, Free Cooling) sets the fans speed, to guarantee the maximum yield with lesser noise and electric consumption

• Electronic Thermostatic Valves = partialises the refrigerant evaporation to obtain the requested power with the lesser electrical consumption

• Fluid side pumps (where expected) = the electronic control manages the redundancy in case of installation of 2 pumps, in order to maintain the working time of the pumps as similar as possible.

• Free Cooling circuit = partialising the 3-ways valve, it takes advantage of the entire cooling capacity recoverable from the ambient air.

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Product structure

Liquid chiller Type Compressors Options

A Air cooledC Centrifugal fansE EC fansW Water-cooled

S Scroll compressor R410A

Free Cooling: onboard040 soon available 050 soon available060 60 horsepower070 70 horsepower080 80 horsepower090 90 horsepower100 100 horsepower110 110 horsepower

Cooling capacity

Version

Sound level

Power supplyFree Cooling: not available120 120 horsepower140 140 horsepower160 160 horsepower180 180 horsepower

Chiller onlyC ChillerD Chiller with cataphoresis

condensing coils

Chiller onlyF Free CoolingG Free Cooling with epoxy-

coated coilsI Free Cooling with

cataphoresis-coated coils

N Standard noiseS Low noise

A 400 V / ~3 / 50 Hz Power supply

B 460 V / ~3 / 60 Hz Power supply

0 Without pump and tank

1 One pump2 Two pumps3 One pump + tank4 Two pumps + tank5 One pump + tank + heaters6 Two pumps + tank + heaters

0 None D EconomizerT Total recovery

Hydraulic circuit

Heat recovery

W P A 1 2 0 S C S A 0 0 0 0

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Technical Data – WPA-060 ... WPA-080Model WPA-060 WPA-060SL WPA-060FC WPA-070 WPA-070SL WPA-070FC WPA-080

GeneralCooling capacity kW 165.5 160.6 196.0 187.5 180.7 224.2 222.6Working limits ambient temperature °C -10 / +45 -10 / +45 -10 / +45 -10 / +45 -5 / +45 -10 / +45 -10 / +45Working limits water outlet temperature °C -5* /+20 -5* /+20 -5* /+20 -5* /+20 -5* /+20 -5* /+20 -5* /+20Refrigerant Type R410A R410A R410A R410A R410A R410A R410APower supply V/ph/Hz 400/3/50 400/3/50 400/3/50 400/3/50 400/3/50 400/3/50 400/3/50Secondary power supply Vac 230 230 230 230 230 230 230Max. power consumption kW 79,88 78.60 92.73 92.62 91.37 105.47 109.76Max. absorbed current A 138.96 135.76 161.30 160.96 157.76 183.30 191.60Starting current A 268.66 265.46 282.30 337.36 334.16 349.30 368.00Height x width x depth mm 2,406x2,208x3,140 2,406x2,208x3,140 2,406x2,208x3,140 2,406x2,208x3,140 2,406x2,208x3,140 2,406x2,208x3,140 2,406x2,208x3,140Noise level dB(A) 57,8 49.9 58.1 57.8 49.9 58.1 58.1CompressorScroll compressor n° 4 4 4 4 4 4 4Max. power consumption kW 76.52 76.52 76.52 89.26 89.26 89.26 102.00Max. absorbed current A 132 132 132 154 154 154 176Power consumption W7L35 kW 49.8 52.6 40.7 61.0 65.0 49.4 68.1Absorbed current W7L35 A 82.3 86.1 69.2 100.4 106.2 83.6 108.6FansAxial fans n° 4 x ø710 4 x ø710 4x ø800 4 x ø710 4 x ø710 4 x ø800 4 x ø800Fan flow m³/h 57,600 47,840 85,500 57,600 47,840 85,500 85,500Power consumption kW 3.36 3.20 5.46 3.36 3.20 5.46 5.46Max. absorbed current A 6.96 3.76 15.60 6.96 3.76 15.60 15.60HydraulicCoolant liquid Type Water Water Eth. Glycol 30% Water Water Eth. Glycol 30% WaterInlet temperature °C 12 12 15 12 12 15 12Outlet temperature °C 7 7 10 7 7 10 7Water flow m³/h 28.42 27.59 36.46 32.22 31.08 41.72 38.22Pressure drops kPa 39.9 37.8 74.1 39.8 37.3 75.2 37.2Water connections Inches 3 3 3 3 3 3 3FCAir temperature (TOTAL FC) °C 5 5Inlet fluid temperature °C 15 15

Technical Data – WPA-080SL ... WPA-100SLModel WPA-080SL WPA-080FC WPA-090 WPA-090SL WPA-090FC WPA-100 WPA-100SL

GeneralCooling capacity kW 216.6 263.1 245.2 237.4 293.4 266.5 276.0Working limits ambient temperature °C -5 / +45 -10 / +45 -10 / +45 -10 / +45 -10 / +45 -10 / +45 -5 / +45Working limits water outlet temperature °C -5* /+20 -5* /+20 -5* /+20 -5* /+20 -5* /+20 -5* /+20 -5* /+20Refrigerant Type R410A R410A R410A R410A R410A R410A R410APower supply V/ph/Hz 400/3/50 400/3/50 400/3/50 400/3/50 400/3/50 400/3/50 400/3/50Secondary power supply Vac 230 230 230 230 230 230 230Max. power consumption kW 106.83 122.09 121.16 118.19 135.27 132.56 132.01Max. absorbed current A 184.92 213.10 209.60 202.92 234.20 227.60 225.38Starting current A 361.32 379.10 380.3 373.62 391.20 398.30 396.08Height x width x depth mm 2,406x2,208x3,140 2,406x2,208x4,447 2,406x2,208x3,140 2,406x2,208x3,140 2,406x2,208x4,447 2,406x2,208x3,140 2,406x2,206x4,447Noise level dB(A) 50.7 58.3 58.2 51.5 58.6 58.2 52.0CompressorScroll compressor n° 4 4 4 4 4 4 4Max. power consumption kW 102.0 102.0 113.4 113.4 113.4 124.8 124.8Max. absorbed current A 176 176 194 194 194 212 212Power consumption W7L35 kW 71.6 55.9 77.5 81.9 63.3 86.0 81.1Absorbed current W7L35 A 113.5 92.2 122.7 129.1 102.9 137.9 130.4FansAxial fans n° 4 x ø800 6 x ø800 4 x ø800 4 x ø800 6 x ø800 4 x ø800 6 x ø800Fan flow m³/h 71,036 128,250 85,500 71,036 128,250 85,500 106,554Power consumption kW 5.20 8.19 5.46 5.20 8.19 5.46 7.80Max. absorbed current A 8.92 23.40 15.60 8.92 23.40 15.60 13.38HydraulicCoolant liquid Type Water Eth. Glycol 30% Water Water Eth. Glycol 30% Water WaterInlet temperature °C 12 15 12 12 15 12 12Outlet temperature °C 7 10 7 7 10 7 7Water flow m³/h 37.21 48.94 42.12 40.82 54.59 45.79 47.42Pressure drops kPa 35.5 68.9 33.7 31.8 63.8 31.9 34.0Water connections Inches 3 3 3 3 3 3 3FCAir temperature (TOTAL FC) °C 5 5Inlet fluid temperature °C 15 15

Evaporator water (in/out) 12/7 °C; condenser air (in) 35 °C;30% glycol-water solution Evaporator solution IN/OUT= 15/10 °C; condenser air 30 °CAverage sound pressure level at 10 m distance; unit in a free field on a reflective surface.Unit at full capacity According to ISO 3744 Pump contribution is not considered.*In case of applications with an output fluid temperature below 0 °C, please contact the manufacturer.

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Technical Data – WPA-100-FC ... WPA-140Model WPA-100FC WPA-110 WPA-110SL WPA-110FC WPA-120 WPA-120SL WPA-140

GeneralCooling capacity kW 322.7 318.6 310.3 364.3 353.1 342.6 385.1Working limits ambient temperature °C -10 / +45 -10 / +45 -5 / +45 -10 / +45 -10 / +45 -10 / +45 -10 / +45Working limits water outlet temperature °C -5* /+20 -5* /+20 -5* /+20 -5* /+20 -5* /+20 -5* /+20 -5* /+20Refrigerant Type R410A R410A R410A R410A R410A R410A R410APower supply V/ph/Hz 400/3/50 400/3/50 400/3/50 400/3/50 400/3/50 400/3/50 400/3/50Secondary power supply Vac 230 230 230 230 230 230 230Max. power consumption kW 146.67 150.64 146.29 162.84 165.07 160.80 181.27Max. absorbed current A 252.20 261.40 251.38 283.30 287.40 277.00 317.40Starting current A 409.20 499.20 489.18 504.30 525.20 515.00 551.20Height x width x depth mm 2,406x2,208x4,447 2,406x2,208x4,447 2,406x2,208x4,447 2,406x2,208x4,447 2,406x2,208x4,447 2,406x2,208x4,447 2,406x2,208x4,447Noise level dB(A) 58.6 59.9 52.6 59.9 60.2 53.4 60.8CompressorScroll compressor n° 4 4 4 4 4 4 4Max. power consumption kW 124.8 139.0 139.0 139.0 153.2 153.2 169.4Max. absorbed current A 212 238 238 238 264 264 294Power consumption W7L35 kW 70.0 92.2 96.4 83.5 106.0 111.3 119.3Absorbed current W7L35 A 114.3 145.0 151.1 132.7 168.5 176.3 195.2FansAxial fans n° 6 x ø800 6 x ø800 6 x ø800 6 x ø800 6 x ø800 6 x ø800 6 x ø800Fan flow m³/h 128,250 128,250 106,554 128,250 128,250 106,554 128,250Power consumption kW 8.19 8.19 7.80 8.19 8.19 7.80 8.19Max. absorbed current A 23.40 23.40 13.38 23.40 23.40 13.38 23.40HydraulicCoolant liquid Type Eth. Glycol 30% Water Water Eth. Glycol 30% Water Water WaterInlet temperature °C 15 12 12 15 12 12 12Outlet temperature °C 10 7 7 10 7 7 7Water flow m³/h 60.03 54.70 53.27 67.78 60.63 58.84 66.14Pressure drops kPa 61.7 44.5 42.4 76.6 41.5 39.3 34.8Water connections Inches 3 4 4 4 4 4 4FCAir temperature (TOTAL FC) °C 5 5Inlet fluid temperature °C 15 15

Technical Data – WPA-100-FC ... WPA-140Model WPA-140SL WPA-160 WPA-160SL WPA-180 WPA-180SL WPA-200 WPA-200SL

GeneralCooling capacity kW 391.7 432.0 419.5 504.0 507.3 559.3 563.4Working limits ambient temperature °C -10 / +45 -10 / +45 -10 / +45 -10 / +45 -10 / +45 -10 / +45 -10 / +45Working limits water outlet temperature °C -5* /+20 -5* /+20 -5* /+20 -5* /+20 -5* /+20 -5* /+20 -5* /+20Refrigerant Type R410A R410A R410A R410A R410A R410A R410APower supply V/ph/Hz 400/3/50 400/3/50 400/3/50 400/3/50 400/3/50 400/3/50 400/3/50Secondary power supply Vac 230 230 230 230 230 230 230Max. power consumption kW 184.80 201.12 195.00 245.30 241.90 275.30 271.90Max. absorbed current A 325.0 355.2 342.0 427.2 418.0 487.2 478.0Starting current A 559.0 572.2 559.0 648.2 639.0 678.2 669.0Height x width x depth mm 2,406x2,208x5,820 2,406x2,208x5,820 2,406x2,208x5,820 2,406x2,208x5,820 2,406x2,208x7,130 2,406x2,208x5,820 2,406x2,208x7,130Noise level dB(A) 53.7 61.6 54.5 62.0 54.7 61.0 54.1CompressorScroll compressor n° 4 4 4 6 6 6 6Max. power consumption kW 169.4 185.6 185.6 229.8 229.8 259.8 259.8Max. absorbed current A 294 324 324 396 396 456 456Power consumption W7L35 kW 116.2 121.1 126.2 162.8 161.2 188.9 186.8Absorbed current W7L35 A 190.5 203.7 211.9 258.8 256.5 311.4 308.5FansAxial fans n° 8 x ø800 8 x ø800 8 x ø800 8 x ø800 10 x ø800 8 x ø800 10 x ø800Fan flow m³/h 142,072 171,000 142,072 171,000 177,590 171,000 177,590Power consumption kW 10.40 10.92 10.40 10.92 13.00 10.92 13.00Max. absorbed current A 31.20 31.20 17.84 31.20 22.00 31.20 22.00HydraulicCoolant liquid Type Water Water Water Water Water Water WaterInlet temperature °C 12 12 12 12 12 12 12Outlet temperature °C 7 7 7 7 7 7 7Water flow m³/h 67.26 74.16 71.99 86.51 87.08 96.01 96.73Pressure drops kPa 35.8 44.3 41.9 64.2 65.0 48.3 49.0Water connections Inches 4 5 5 5 5 5 5FCAir temperature (TOTAL FC) °CInlet fluid temperature °C

Evaporator water (in/out) 12/7 °C; condenser air (in) 35 °C;30% glycol-water solution Evaporator solution IN/OUT= 15/10 °C; condenser air 30 °CAverage sound pressure level at 10 m distance; unit in a free field on a reflective surface.Unit at full capacity According to ISO 3744 Pump contribution is not considered.*In case of applications with an output fluid temperature below 0 °C, please contact the manufacturer.

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Europe, America and Asia

The humidity of the tropics and arid heat of the desert requirecompletely different air conditioning solutions from the moderateclimes of the Northern Hemisphere. In addition, the demands ofEuropeans and Americans differ completely from those of Indiansand Chinese. Only by producing in the relevant market can youknow precisely what your customers want. This is why STULZ hasproduction sites in the world’s major growth regions. All overthe world, customers put their trust in product lines that answerperfectly to their requirements.

Co-operating globally, producing locally: For every region, STULZsupplies tailor-made products for individual requirements.

PRODUCTION SITES

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USA, Frederick, Maryland

America

Germany, Hamburg

Italy, Valeggio sul Mincio

China, Hangzhou China, Shanghai

India, Mumbai

Asia

Europe

Europe, America and Asia

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For more information, visit us at www.stulz.com

STULZ Worldwide

Headquarters Germany

Subsidiary companies Australia Austria Belgium China France Germany Great Britain India Italy Mexico Netherlands New Zealand Poland Singapore South Africa Spain USA

Production Germany China India Italy USA

Partners www.stulz.com/worldwide

Close to you all over the world: with 17 subsidiaries, 6 production sites and sales and service partners in more than 120 countriesIn 1971, we began specialising in the development and production of precision air conditioning units and chillers for data centers. Customers all over the world put their trust in our products and technical expertise. We continually invest in the latest technology and the qualified training of our employees and partners. From project planning and rollout to maintenance and service, we have systems and solutions for data centers of all sizes and with the most diverse requirements. Take advantage of our know-how.

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STULZ business dataFounding year: 1947Number of STULZ A/C Systems employees worldwide: approx. 2,100Sales volume STULZ A/C Systems, worldwide: approx. €360 million

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German engineering In 1971, we began specialising in the development and production of precision air conditioning units and chillers for data centers. That‘s a wealth of experience – gathered from the many thousands of projects that we have implemented worldwide in the past 40 years. We have systems and solutions for data centres of all sizes and with the most diverse requirements. Take advantage of our know-how.

Custom-made

In line with your budget, STULZ draws up a detailed quotation based on your requirements in terms of performance, availability, required space and cost. Our specialists will put together an individual air conditioning system for you. In it, the internal precision air conditioning systems and external chillers are always viewed as an integrated system. And we will help you to draw up service specifications and invitations to tender.

Quality standards

STULZ delivers the best possible reliability levels by manufacturing its precision air conditioning units and chillers using high-quality components that meet very strict production standards. Every completed chiller undergoes comprehensive live mechanical and electrical testing on our running test bench. There‘s no other way to achieve 100% reliability.

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Global expertise in chiller cooling from over 1,000 successful projects

Outdoor air-cooled Global Germany-wide Installed kW worldwide

Projects < 100 kW > 443 > 200 > 32,179

Projects 100 - 800 kW > 278 > 130 > 106,520

Total > 721 > 330 > 138,699

Indoor data chiller Quantity Germany-wide Installed kW

Projects > 321 > 110 > 40,901

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