Read WSAT-XSC352-602.pdf text version

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WSAT-XSC 352-602

AIR COOLED WATER CHILLER FROM 86 TO 157 kW SPINCHILLER represents the very latest step in the evolution of chiller units.Designed specifically to optimize efficiency at partial loads, units of the SPINCHILLER series offer lower energy consumption -- under normal operating conditions -- than any other chiller of similar rated capacity.

WSAT-XSC 352 - 602 (R-410A)

Size Cooling [kW]

352 402 432 452 502 552 602

86.5 97.4 107 117 126 137 157

The SPINCHILLER series signals a turning point in the development of this type of unit. It incorporates all the newest technology currently available, and is characterized by: EFFICIENCY thanks to special features of construction, the SPINCHILLER guarantees high energy efficiency, especially when operating under partial load conditions; SELF-ADAPT CAPABILITY evolved electronics ensure that the operating parameters of the chiller can be adapted to the load conditions of the overall system, optimizing power consumption, minimizing noise and extending the life of components; RELIABILITY SCROLL compressors and newly designed electronic controllers combine to give levels of reliability unattainable hitherto with conventional units of similar rated capacity

Clivet is partecipating in the EUROVENT Certification Programme "Liquid Chilling Packages". Products are listed in the EUROVENT Directory of Certified Products and in the site www.eurovent-certification.com. Eurovent Chillers Certification Programme covers air cooled packaged chillers up to 600 kW and water cooled packaged chillers up to 1500 kW.

CERTIFIED QUALITY SYSTEM UNI EN ISO 9001:2000

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Comfort is a human right. Care for the environment is a human duty.

The SPINCHILLER is an appliance of new conception, designed especially to operate with increasing efficiency as thermal load reduces, yet able to handle the maximum load demand whenever necessary. Because of significant diurnal and seasonal variations in load, chillers must operate for prolonged periods under partial load conditions. A SPINCHILLER unit always ensures conditions of maximum comfort coupled with ultra high efficiency for most of the system's working life, which means a big saving in electrical energy. This reflects the corporate policy of CLIVET, namely: offering fundamental and concrete solutions to help safeguard the well-being of people and their environment. By way of example, here is a seasonal thermal load graph relating to a multi-use building (shops, offices and apartments) located in the Milan area.

MULTIPLE HIGH EFFICIENCY SCROLL COMPRESSORS IN THE SAME COOLING CIRCUIT

The bases for the design approach of SPINCHILLER is the choice to use several SCROLL compressors, installed on a single refrigeration circuit rather than on the traditional separate circuits.In addition, the use of compressors of compressors of various powers makes it possible to increase the number of power steps, and hence provides greater flexibility in stepping. In the way, the unit can perfectly follow the load of the system. The highly developed electronic control that SPINCHILLER is equipped with optimized activation of the compressors and balances their operating cycles.

HIGH EFFICIENCY AT PARTIAL LOADS

Percentage of unit working time

The unit in an air-conditioning system is selected on the basis of the maximum load the system is designed to handle. In practice however, maximum load conditions account only for a small percentage of the overall operating time, whereas the partial load operation is the true condition in which the unit had to operate. Simulation tests conducted in different buildings have shown that systems operate on average for 90% of total operating time with thermal load lower than 60%. Accordingly, operating efficiency under partial load conditions is a key consideration when selecting a chiller.

100% 90% 80% 70% 60% 50% 40% 30% 20% 10% 0%

90% of the time the load is less than 60%

60% of the time the load is lower than 30%

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<20%

<30%

<40%

<50%

<60%

<70%

<80%

<90%

<100%

Load percentage

RESPONSE TO CHANGING LOAD

The higher efficiency of the SCROLL compressor and the special constructional features highlight the thermodynamic efficiency of the SPINChiller units. The graph to the side illustrates the extreme smoothness with which capacity delivered is adapted to the demand and shows how, even when not all the compressors are in operation, the efficiency of the SPINChiller remains higher than that of a conventional chiller, ACHIEVING EVEN DOUBLE THE EFFICIENCY WHEN OPERATING AT UNDER 50% LOAD. An advanced control system optimises the operating cycle and the rotation sequence of the compressors, significantly prolonging their service life. To obtain maximum efficiency, the electronic control activates the compressors according to the most favourable ratio between the heat exchange surfaces, so that the condensing and evaporation temperatures are always at the most beneficial values.

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NOISE TOO IS LOAD-DEPENDENT

The electronic condensation control, included as standard on all SPINCHILLER units, is designed to adjust the speed of the fans automatically as the thermal load reduces. Given that the fans are the main source of noise in a chiller, this is a feature that brings important benefits, especially at night-time, when the demand on the system is less but sensitivity to noise is greatest. From the graph, it will be seen that for 90% of operating time, the sound pressure level is around 6-8 dB(A) lower than would be the case when operating at maximum load.

SLIDING TEMPERATURE

The electronic control that SPINCHILLER is equipped with makes it possible to adapt the temperature of the water generated by the unit the perceived load conditions according to a concept of SCROLLING TEMPERATURE that seeks the best balance between power to be supplied and the energy used to produce it.

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STANDARD UNIT SPECIFICATIONS

COMPRESSOR Hermetic orbiting scroll compressor complete with motor over-temperature and over-current devices and protection against excessive gas discharge temperature. Fitted on rubber antivibration mounts and complete with oil charge A oil heater is automatically switched on at the compressor shut-down to prevent oil dilution by the refrigerant. STRUCTURE Hot-galvanized and painted plate structure with pre-painted aluminium external panelling to ensure maximum weatherability. The uniform distribution of the weight of the unit is guaranteed by the base structure, made up of galvanized and painted plate section bars, and featuring holes to simplify the lifting and earthing of the unit. INTERNAL EXCHANGER Direct expansion heat exchanger, braze-welded AISI 316 stainless steel plates with large exchange surface and complete with external heat and anti-condensate insulation. the exchanger comes complete with: differential pressure switch, water side antifreeze heater to protect the water side exchanger, preventing the formation of frost if the water temperature falls below a set value. EXTERNAL EXCHANGER Direct expansion finned exchanger, made from copper pipes in staggered rows and mechanically expanded to the fin collars. The fins are made from aluminium with a corrugated surface and adequately distanced to ensure the maximum heat exchange efficiency. The coils are complete with integral subcooling circuit which assures the correct refrigerant feeding of the expansion valve. Available in different options as per optional list. FAN Helical fans with sickle-shaped blades with "Winglets" at the end, coupled directly to a three phase electric external rotor motor with thermal protection incorporated in version IP 54. Housed in aerodynamically shaped nozzles to increase efficiency and minimize noise levels. They are fitted with protective safety guard grilles. REFRIGERANT CIRCUIT The circuit is complete with: - replaceable anti-acid solid cartridge dehydrator filter - sight glass with moisture indicator - electronic expansion valve (see details further on) - high pressure switch - low pressure switch - high pressure safety valve - low pressure safety valve - liquid line shut-off valve - compressor discharge shut-off valve ELECTRICAL PANEL the Power Section includes: - main door lock isolator switch - isolating transformer for auxiliary circuit power supply - compressor circuit breaker - fan overload circuit breakers - compressor control contactor - fan control contactors - phase-cutting fan speed control the control section includes: - proportional + integral water temperature control - antifreeze protection - compressor overload protection and timer - self-diagnosis system with immediate display of the error code - compressor operating hour display - remote ON/OFF control - automatic compressor start rotation control - relay for remote cumulative fault signal - input for demand limit (absorbed power limit according to an external signal 0÷10V or 4÷20mA) - prealarm function for water anti-ice and high refrigerant gas pressure - display of the set values, the error codes and the parameter index - ON/OFF and alarm reset buttons - interface terminal with graphic display - Electronic for Elfo Control system (optional) ACCESSORIES - Condenser coil in copper/aluminium with acrylic coating - Copper/copper condenser coil - condenser coil and compressor compartment protection grill. - steel mesh strainer to be mounted at the exchanger inlet. Should the filter not be installed in the water system, Clivet declines all responsibility and the warranty on the equipment automatically expires . - high and low pressure gauges - compressor suction shut-off valve - Hydro Pack (see page 8) - Anti-ice electric heaters utility side for hydronic group - 250 l. storage tank with antifreeze electric heater - phase monitor - power factor correction capacitors (cosfi > 0.9) - Free contacts for compressor state - breakaway current reducing device (soft start) - set point compensation with 4-20 mA or 0-10 V signal - set point compensation with outside temperature probe - set point compensation according to the outside enthalpy - remote microprocessor control unit - data logger (device for the acquisition of status and regulation values, as well as for recording the operation conditions in the surrounding of alarm events) - spring antivibration mounts - ECOBreeze (see page 7) - Master-Slave function - CAN/LON WORKS serial converter kit - CAN/MODBUS serial converter kit TEST All the units are factory-tested in specific steps, before shipping them. After the approval, the moisture contents present in all circuits are analyzed, in order to ensure the respect of the limits set by the manufacturers of the different components.

CONFIGURATION CODE

(1) (2) (3) (4) (5) (6)

WSAT-XSC

D

R

( St andar d)

B

B

( St andar d)

-

352

( St andar d)

SC

SC EN

T

T

(St andar d)

C

CE C

( St andard)

FCD

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D

(1) ENERGY RECOVERY

Total energy recovery(R) made using exchangers to recover 100% of the condensing heat for production of hot water. In addition, exchangers are complete with safety differential pressure switch on the water side, antifreeze heater to protect against the risk of ice. Partial energy recovery(D) made using plate exchangers to recover the desuperheating heat, up to 25% of the total heat of the unit. In addition, exchangers are complete with antifreeze heater to protect against the risk of ice.

(3) FREE COOLING

direct Free-cooling(FCD) Version that allows to recovery free-cooling from ambient when tha ambient air temperature is lower than the system outlet water temperature. To avoid problems with the unit, the water system must be protected by a mixture of water and glycol based on the minimum temperatures which may occur at the place of installation.

(4) ACOUSTIC CONFIGURATION

Acoustic configuration with compressor soundproofing(SC) this configuration is obtained by inserting the compressors in a soundproof enclosure. Extremely low noise acoustic configuration(EN) this configuration is reached by inserting the compressor in an soundproofed enclosure and reducing the fan speed.

(2) LOW TEMPERATURE

Water low temperature(B) this version allows unit operation in the range of water and glycol mix temperatures between +4 and -8°C. Two Versions are available: - Unit only for low temperatures - Unit with double set-point operating set-point (Please contact our Sales office for special conditions)

(5) ENERGY EFFICIENCY

Energy efficiency for temperate climate(T) standard

(6) HEAT EXCHANGERS APPROVALS

Heat exchangers approvals CE = PED (European Testing)(PED) Heat exchangers approvals C = CLIVET (Internal Testing)(CLV)

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SOUND LEVELS

Acoustic configuration: compressors soundproofing (SC)

Sound Power Level (dB) Size 63 352 402 432 452 502 552 602 66 66 66 66 66 66 67 125 77 77 77 77 77 77 78 352 402 432 452 502 552 602 Size 63 62 62 62 62 62 62 63 125 78 78 78 78 78 78 78 Octave band (Hz) 250 85 85 85 85 86 86 87 500 1000 2000 4000 8000 82 82 82 82 83 83 84 75 77 78 78 78 79 80 77 78 77 77 78 79 79 71 72 72 72 72 73 74 69 69 69 69 69 70 70 Sound pressure level dB(A) 65 66 66 66 67 68 68 Sound power level

Measures according to ISO 3744 regulations, with respect to the EUROVENT 8/1 certification. the sound levels refer to the unit at full load, in the rated test conditions. The sound pressure level refers to a distance of 1m from the external surface of the units operating in an open field. data referred to the following conditions : internal exchanger water = 12/7°C outdoor air temperature 35°C the sound levels EN version is valid within the operation limits relative to these acoustic versions; make reference to the noise data relative to SC version for higher external air temperature and in any case included within the operation limits of SC version.

dB(A) 84 84 85 84 85 86 86

Acoustic configuration: Extremely low noise (EN)

Sound Power Level (dB) Octave band (Hz) 250 81 81 81 81 83 83 83 500 1000 2000 4000 8000 75 76 77 77 78 78 79 70 73 75 75 75 76 77 75 76 76 76 77 78 78 66 69 69 69 69 70 70 64 67 66 66 65 68 67 Sound pressure level dB(A) 61 63 63 63 64 65 65 Sound power level

dB(A) 80 81 81 81 82 83 83

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Accessory:ECOBreeze

Within the range of air condensation-based products, Clivet introduces an innovative technology based on the deployment of fans driven by Brushless motors, completely electronically-controlled, characterised by extremely high efficiency and which allow a very advanced adjustment of fan speeds.

The ECOBreeze option envisages the utilisation of special fans driven by electrical Brushless motors. This technology envisages a permanent-magnets rotor, coupled with a very advanced magnetic field electronic switching control to the stator, directly integrated within the motor itself. A veritable "feather in the cap" is the electronic switching device that manages the precise and effective modulation of the fan's rotation speed and, therefore, of the fan's capacity. The management of this device is entrusted to the unit's general control system, thus assuring complete integration with the other refrigerating unit's components; this also allows the attaining of an exceptional overall efficiency. Furthermore, by integrating the control directly within the fan, one is guaranteed absolute suitability in the regulator/fan pair, differently from what is experienced in traditional systems. Finally, under particularly demanding or emergency conditions, for example should the environment temperature rise beyond the limits foreseen, before shutting the delivered power and/or setting the unit under alarm, the control device will detect the specific situation and will force the fans to a rotation speed beyond the nominal value, thus assuring an additional capacity of about 15% of the specified value. In this way, it is possible to assure the production of refrigerated water also when traditional units would be forced into alarm conditions.

Electric motor intrinsic efficiency guarantees a consumption reduction in every operation conditions.

2000 1800

90% 80%

1600 1400

EcoBreeze

70% Efficiency 60% 50% 40% 30% 20% 10% %

1200 Input power [W] 1000 800 600 400 200 0 5000 Traditional fans EcoBreeze 7000 9000 11000 13000 15000 17000 19000

3 ph motor

Air Performance [m3/h]

kW/h used by fans according

SAVING AFTER 10 YEARS 26923 kWh = 3365 SAVING AFTER 8 YEARS 20365 kWh = 2546 to the partial loads

50000

SAVING AFTER 6 YEARS 13806 kWh = 1726 SAVING AFTER 4 YEARS 7248 kWh = 906 SAVING AFTER 2 YEARS 689 kWh = 86

0 0 Y ears

BREAK EVEN

2 Years 4 Years 6 Y ears 8 Y ears 10 Y ears

The graph is referred to the WSAT-XSC 602 SC unit (with 3 fans) installed in Milan - for 2.000 h/year of operation.

When fans turn at minimum necessary speed, noise emissions are reduced.

In addition to this, a generalised reduction in noise emission is obtained, due to the effect of both the rotation speed which is always modulated to the most suitable value, in keeping with the operation conditions, and the technology deployed in the governing which doesn't induce particular frequencies and vibrations in the rotation.

The start-up is progressive, without start absorption peaks.

The current damping at start-up (see diagram) due to the control typology, but also to the absence of brushing contacts for the power supply to the rotor, drastically reduce the harmful stresses for the lifetime of the component. In the final analysis, the fan's life can be considered as practically unlimited (greater than 80,000 hours).

considering the cost for kWh of 0.125

The final result confirms that in comparison to the traditional three-phase induction motors, also with frequency and/or voltage governing, the internal losses within the iron are reduced by 60%, those of the copper by 40%, whereas the intrinsic consumption is about half of that of a traditional modulator (inverter, phase adjuster). The energy cutback, and therefore the money saved, under all operating conditions are truly remarkable and the initial investment is repaid in very few months. From that moment onwards the reduced operative costs turn directly into an economic gain for the user.

100000

SAVING WITH ECObreeze

BREAK EVEN POINT TRADITIONAL CHILLER - ECOBreeze in 21.5 Months

80

TRADITIONAL FAN

70

60

LpA [dBA]

50

40

ECObreeze FAN

30

20

10 0 2000 4000 6000 8000 10000 12000 14000

air volume m3/h

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Accessory: Hydropack

New concept of pumping station and reserve pump.

The outfitting of the refrigeration groups with the Hydropack accessory makes it possible to provide the necessary flow rate/static pressure with different versions based on the power of the system. 1) HYDROPACK with 1 pump, for low-power units you can choose the basic solution with 1 pump. 2) HYDROPACK with 1 pump + 1 standby, also for low-power units you can include a second pump for complete reliability. If one pump shuts down, the other one automatically starts up and the unit control signals the shutdown of the pump that is out of order. The microprocessor automatically balances the hours of operation of both pumps. 3) HYDROPACK with 2 pumps, to take full advantage of the Hydropack, you can choose the solution with 2 pumps. If one pump shuts down the unit continues running normally at about 60% load, which is in any case more reliable than traditional systems with a single high-power pump. 4) HYDROPACK with 2 pumps + 1 standby, a third backup pump can be included for complete reliability. This ensures the design water flow rate in all circumstances. In fact, if there is a failure, the third pump automatically cuts in and the unit control signals the shutdown of the pump that is out of order. 5 ) HYDROPACK with 3 pumps, with the solution with 3 pumps always active, the shutdown of a pumps still allows normal operation at up to 80% of the load, again with a notification of shutdown. In this case, it is possible to provide, on request, a reserve pump (not installed). Replacement occurs in just a few minutes thanks to the simplicity of the connections.

Self-adjustment: The modular pumping system makes it possible to automatically reduce the water flow rate if the temperature increases above the operating limit (excluding hydropack with 1 pump). The device is also very useful during start-ups, on weekends and after a long period of inactivity. When the temperature of water in the hydronic circuit is especially high, this prevents undesired shutdowns due to overload resulting in call-outs of service technicians to assist in restarting. The range of pumps available for these units is suitable to satisfy the most common system requirements. For each value 352÷602 it is possible to select from among 4 characteristics (A,B,C,D) of static pressure.

AVAILABLE HEAD (WITHOUT EVAPORATOR) [kPa]

300 280 260 240 220 200 180 160 140 120 100 80 60 40 20 0 3.5 4 4.5 5 5.5 6 6.5 7 7.5 8 8.5 9 9.5

3PD 1PD 2PD 3PC 1PC 2PC 1PB 3PB 2PB 3PA 1PA 2PA

Technical Specifications Rated Rated absorbed absorbed Pump power current [kW] [A] A 1.12 2.2 B 1.43 2.7 C 1.84 3.5 D 2.28 4.8 2PA 2.2 4.3 2PB 2.9 5.4 2PC 3.7 7.0 2PD 4.6 9.6 3PA 3.4 6.5 3PB 4.3 8.1 3PC 5.5 10.5 3PD 6.8 14.5

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352

402

432

452

502

552

602

EVAPORATOR WATER FLOW RATE [l/s]

Attention: the evaporator pressure drops have to be taken from the heads represented in these diagrams in order to obtain the available head values. Attention:in case of unit equipped with water filter accessory, the pressure drops of filter must be removed from pump discharge head curves.

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Ready to start:

SpinChiller-units can be supplied with a pumping station on utility side. In this way connection activities are reduced to hydraulic pipe ones and to electric supply.

VERSION WITH ONE/TWO PUMPS

VERSION WITH TWO PUMPS

VERSION WITH THREE PUMPS

PHE

PRS

M VR

OPTIONAL (stand-by)

PHE

PRS

M VR

PHE

PRS

M VR

R

P

R

OPTIONAL (stand-by)

P

R

P

M R F R

VS R F

M R

VS R F

M R

VS

OPTIONAL

OPTIONAL

OPTIONAL

VERSION WITH ONE/TWO PUMPS WITH STORAGE TANK

VERSION WITH TWO PUMPS WITH STORAGE TANK

VERSION WITH THREE PUMPS WITH STORAGE TANK

PHE

PRS

M VR

OPTIONAL (stand-by)

PHE

PRS

M VR

PHE

PRS

M VR

R

S

P

R

OPTIONAL (stand-by)

S

P

R

S

P

M R F R

VS R F

M R

VS R F

M R

VS

OPTIONAL

OPTIONAL

OPTIONAL

VERSION WITH ONE/TWO PUMPS WITH STORAGE TANK 1°/2° CIRCUIT

VERSION WITH TWO PUMPS WITH STORAGE TANK 1°/2° CIRCUIT

PHE

PRS

M VR

OPTIONAL (stand-by)

PHE

PRS

M VR

R

S

P

R

S

OPTIONAL (stand-by)

P

M F R R

VS F R

M R

VS

OPTIONAL

OPTIONAL

Gasket Housing Groove

Bolt/Nut

More specifically, all main components (including the pre-setting of the connection to the system) are hydraulically connected through swift-latch connections instead of the traditional welding, flanging and threading, with obvious advantages for the user. - They can be easily dismantled, affording an advantage in the inspection and maintenance operations. - Work times are reduced by 90%. - The deployment of specialised personnel is not necessary. - The moving of single components is made very simple. - Weight is reduced since at even piping dimensions the joints weigh half as much as the flanges. - Utilisation of standard components that are available anywhere in the market.

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Multi-pump hydronics group composed of: - R = cut-off valves, - F = steel mesh filter (optional), - S = storage tank of 250 litres with anti-freeze heating element, - M = pressure gauges, - VS = safety valve (6 Bar), - P = monobloc electric pumps with high-performance single rotor, - VR = non-return valve, - PRS = system charge safety pressure switch (keeps pumps from operating if there is no water), - PHE = evaporator - kit composed of two solid rapid connections for pump removal in case of malfunction.

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Standard electronic expansion valve

Efficiency is in the standard scope of supply as a result of the electronic expansion valve. This element optimizes the superheating in any load condition thus offering a large number of advantages which can be summed up as follows: - Fast and precise action due to the microprocessor based control with PID algorithms and to the step-motor. - High energetic efficiency in all conditions, thanks to the reduction of transients, in terms of amplitude and duration, following load variations. - Extended operating limits of the unit concerning minimum partial load and minimum air temperature at condenser. - Better operating conditions for the compressor, thanks to the lower discharge gas temperature and preventing liquid return and insufficient lubrication. - Easy unit set-up, even in special application seen the flexibility of the valve and its control parameters . - More responsible use of refrigerant as the overall quantity required is smaller. - Enhanced reliability of the operation of refrigerant circuit due to simplification of its components, to the control of the maximum operating pressure (MOP) and to the individual alarm condition indication.

Transient and effect on superheating

The instability of the superheating coming from the variation of the capacity supplied is reduced and is rapidly zeroed by the PID control and its fast reaction. This allows a steady operation, within the safety limits, around the most favorable value.

New generation of fans

SPINchiller has a new axial-flow fan projected in the best European laboratories in collaboration with the builder. The result of the search allowed the development of the innovative "Winglets" airfoil-vane blade at the end of the blade. The development of these new blades allowed to get some important advantages both for the sound, with a media reduction of 6 dB (A), and for the energy with the consumption reduction of 10%.

Seasonal efficiency=ESEER

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ESEER: Guarantee in the performance means to be able to plan realistically the energy consumption and then the costs. The ESEER = European Seasonal Energy Efficiency Ratio, contrarily to the simple EER, is calculated as a combination of different operating conditions, which have been recently declared by Eurovent/CEN, in order to demonstrate the chiller efficiency while operating also in off-design conditions, normal in the mid-season.

Conditions Weight a b c d 3 33 41 23 Load (%) 100 75 50 25 Air 35 30 25 20 Water 12 / 7 10.8 / 7 9.5 / 7 8.3 / 7 EERa = EERb = EERc = EERd = 2.71 3.59 4.25 4.27 x 0.03+ x 0.33+ x 0.41+ x 0.23+

ESEER = 3.99

Example of calculation referred to the unit WSAT-XSC 502 SC. - a,b,c,d, = partial load conditions and air temperature used for the ESEER calculation. -Weight % = space of time during which the unit works at the described conditions (used in the weighted sum). -Load % = partialization of the unit drop (referred to nominal capacity). -Air temperature = condensate coil intake air temperature. -Water temperature = evaporator water temperature. -EERa,b,c,d = EER calculated according to the partial load conditions 10

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SPIN CHILLER FREE-COOLING

FREE-COOLING When the temperature of the fresh air is lower than the temperature of the return water of the system, the free-cooling version lets you recover cold from the external environment, reducing the work of the compressors all the way down to nothing. IT IS INTENDED for all applications that require chilled water even in cold weather, such as industrial processes, data processing centres, telephone plants, shopping centres, etc.

USE OF ANTI-FREEZE SOLUTIONS

The heat carrier used in the systems that include a Free-Cooling device require a glycol solution (usually an ethylene type). This substance is required because the Free-Cooling units are intended to be installed where the temperature can drop to very low levels during certain times of the year. The percentage of glycol in the solution depends on the low temperatures that can be expected in the place of installation. Therefore, this parameter is at the discretion of the system designer.

OPERATING LOGIC OF CLIVE UNITS

The Free-Cooling unit differs mechanically from the standard unit due to the addition of a 3-way valve and a special finned packaged air/water heat exchanger. Seasonal weather conditions cause the unit to operate in one of three different modes: · Summer mode. · Spring/autumn mode. · Winter mode. For the unit to work correctly in all situations, in complete safety, and with complete recovery of cooling power, the use of a modern, sophisticated microprocessor is required, which monitors a number of parameters (especially temperature and pressure) for the fresh air, gas and water circuit. The main difference between summer mode and the other modes is the position of the 3-way valve. In the summer, the valve is positioned so that it bypasses the Free Cooling coils, which in the other seasons are involved in cooling the solution.

OPERATING LOGIC IN SUMMER MODE

- cooling of the solution is ensured by the refrigerating cycle with operation of the compressors (C) as in a traditional chiller - as you can see in the figure, the Free-Cooling (Bh) coils are not involved.

OPERATING LOGIC IN SPRING/AUTUMN MODE

- energy savings variable between 0 and 100%, based on the temperature difference between fresh air and the system request - if the unit detects that the fresh air temperature (Ae) is suitable: 1) it inverts the position of the 3-way valve (V3), forcing the solution to travel through the Free-Cooling coils (Bh) before reaching the evaporator (Ev) 2) it sets the fans (Fa) at maximum speed to obtain maximum cooling of the solution from the fresh air 3) the solution thus undergoes an initial cooling which is free and natural 4) the remaining cooling is provided by the refrigeration cycle, with compressors in stepped operation (power absorbed proportional to the degree of stepping) - if the temperature of fresh air increases, the microprocessor will automatically revert operation to summer mode, ensuring the same conditions requested by the user

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the three way valve (V3) is in the same position as in the previous case - the temperature of the fresh brings the solution at the outlet of the Free-Cooling coils (Bh) to the temperature required for use; - the microprocessor control completely deactivates all compressors (C), providing all cooling power at no cost, as opposed to standard units; - if the difference between the temperature of the fresh air (Ae) and that required for use is such that the temperature of the solution at the outlet of the Free-Cooling coils (Bh) drops below the set point required for use (which does not compromise unit safety, because of the glycol in the solution), the microprocessor modulates fan speed (Fa), turning them off if necessary. When the fans are off, if the temperature (Wo) continues to drop, the 3-way valve (V3) positions itself as in summer operation, changing to digital and allowing the set point to be maintained.

Key Ae = fresh air Bc = condensing coil Bh = water coil C = scroll compressor Ev = plate evaporator

F = filter dryer Fa = fan SL = liquid waring light V3 = three-way valve Ve = electronic expansion valve VL = cock on the liquid line

Vm = cock on the return line Wi = water inlet Wo = water outlet

DETERMINATION OF CHILLER PERFORMANCE WITH FREE-COOLING IN CONDITIONS OF FC = OFF

The performance of a unit provided with a free-cooling device varies with respect to the information provided for the standard units as shown in the table:

Glycol Cooling Capacity Compressors input 10% 0.97 1.040 20% 0.96 1.034 30% 0.95 1.030 40% 0.94 1.027

EXAMPLE: Determine the performance of a unit WSAT-XSC FCD 602 SC, free-cooling with water 15/10 °C (30% gl) and fresh air 35°C, WSAT-XSC S 602 SC (standard) Cooling capacity = 157 Kw Compressors input = 53.1 kW WSAT-SC FCD 602 SC (free-cooling) Cooling capacity = 157. x 0.95 = 149. kW Compressors input = 53.1 x 1.03 = 54.7 kW

DETERMINATION OF CHILLER PERFORMANCE WITH FREE-COOLING IN CONDITIONS OF FC = ON

Size Nominal Free-cooling capacity (1) Nominal air temperature of 100% Free-cooling (1)

352

Kw °C 87.9 1.0

402

98.7 1.0

432

109 0.0

452

117 -1.0

502

127 -2.0

552

139 -3.0

602

158 -2.5

(1)Data referred to the following conditions : - Water temperature IN-OUT 15/10°C; - Percentage of glycol 30%;

DETERMINATION OF FREE-COOLING PERCENTAGE

BT07N005GB-00

% FC = percentage with respect to nominal free-cooling potential (water = 15/10°C, 30% gl) DT = temperature difference between system's return water and fresh air. EXAMPLE: Determine the FC performance of a unit WSAT-XSC 602 SC with water 15/10 °C -30% gl and fresh air 1°C. Nominal FC power = 158. kW with H2O = 15/10 °C - 30% gl, fresh air -2.5 °C. Temperature difference = 15°C - 1 °C = 14°C Percentage of nominal Fc = 78% FC power with fresh air of 1°C = 158 x 0.78 = 123. kW 12

HYDRONIC

352 - 602

Acoustic configuration: compressors soundproofing (SC) GENERAL TECHNICAL SPECIFICATIONS

Size COOLING Cooling capacity Compressor power input Total power input Heating capacity total recovery Heating capacity partial recovery EER ESEER COMPRESSOR Type of compressors No. of Compressors Rated power (C1) Oil charge (C1) Refrigerant circuits INTERNAL EXCHANGER Type of internal exchanger No. of internal exchangers Water flow rate (Internal Exchanger) internal exchanger pressure drop Water content EXTERNAL SECTION FANS Type of fans Number of fans Standard air flow CONNECTIONS Water fittings NOISE LEVELS Sound Pressure Level (10m) DIMENSIONS Length Depth Height STANDARD UNIT WEIGHTS Shipping weight Operating weight dB(A) mm mm mm kg kg 5 Nr l/s kPa l 6 Nr l/s 1 2 3 3 kW kW kW kW kW 86.5 26.9 30.3 112 28.3 2.85 3.72 SCROLL 2 35 8 1 PHE 1 4.1 63 6 AX 2 12888 2" 1/2 52 2850 1115 2210 1045 1051 97.4 31.6 35 128 32.2 2.78 3.78 SCROLL 2 40 11 1 PHE 1 4.7 65 6.5 AX 2 12888 2" 1/2 53 2850 1115 2210 1070 1077 107 36 39.4 144 35.8 2.72 3.75 SCROLL 2 43 10 1 PHE 1 5.1 64 7 AX 2 12888 2" 1/2 53 2850 1115 2210 1088 1095 117 38.6 42 152 38.9 2.79 3.94 SCROLL 2 45 10 1 PHE 1 5.6 61 8 AX 2 12473 2" 1/2 53 2850 1115 2210 1116 1124 126 43.1 46.5 166 42.3 2.71 3.99 SCROLL 2 50 11 1 PHE 1 6 58 9 AX 2 12473 2" 1/2 53 2850 1115 2210 1162 1171 137 47.4 50.8 180 46.1 2.7 4.06 SCROLL 2 55 13 1 PHE 1 6.5 57 9.5 AX 2 12473 2" 1/2 54 2850 1115 2210 1188 1198 157 53.1 58.2 205 52.5 2.7 3.79 SCROLL 2 60 13 1 PHE 1 7.5 69 10 AX 3 17059 2" 1/2 54 2850 1115 2210 1270 1280

352

402

432

452

502

552

602

Nr HP l Nr

(1) data referred to the following conditions : internal exchanger water = 12/7°C external exchanger air intake 35°C (2) According to EUROVENT the Total Power Input does not consider the pump share, required to overcome the pressure drop for the solution circulation inside the exchangers.

(3) recovery exchanger water=40/45°C (5) PHE = plates S&T = tube bundle (6) AX = axial-flow fan

Acoustic configuration: compressors soundproofing (SC) OPERATING LIMITS (COOLING)

Size EXTERNAL EXCHANGER Max air intake temperature Max air intake temperature Min. air intake temperature Min. air intake temperature Min. air intake temperature Min. air intake temperature INTERNAL EXCHANGER Max water inlet temperature Min. water outlet temperature Min. water outlet temperature 1 2 3 4 5 6 °C °C °C °C °C °C °C °C °C 49 52 -10 -7 2 11 23 5 -8 48 51 -10 -7 2 11 23 5 -8 46 49 -10 -7 2 11 23 5 -8 46 49 -10 -7 2 11 23 5 -8 45 48 -10 -7 2 11 23 5 -8 44 47 -10 -7 2 11 23 5 -8 45 48 -10 -7 2 11 23 5 -8

352

402

432

452

502

552

602

7 8

data referred to the following conditions : internal exchanger water = 12/7°C difference between inlet / outlet water temperature = 5°C Warning: the still air condition is meant as absence of air flow to the unit. Any wind condition can let air pass through the condenser coil thus worsening the operating limits of the unit (see limits with air speed at 0,5 m/s & 1 m/s). Note: the Standard unit shall never be exposed, at temperatures below -10°C while supplied. On request it's possible to take countermeasures for the operation also in more critical environmental conditions. For special conditions contact our Sales Office. ATTENTION: IN CASE OF PREDOMINANT WINDS, WINDBREAK BARRIERS ARE NECESSARY.

(1) Max inlet temperature - unit at full load (2) Max inlet air temperature - capacity-controlled unit with standard limit device (3) Min inlet air temperature - unit at full load and motionless ambient air (4) Min inlet air temperature - unit at partial load and motionless ambient air (5) Min inlet air temperature - unit at partial load and air speed of 0.5 m/s. (6) Min inlet air temperature - unit at partial load and air speed of 1 m/s. (7) standard unit external exchanger air intake 35°C (8) B = Low Temperature external exchanger air intake 35°C Fluid with ethylene glycol of 40%

13

BT07N005GB-00

HYDRONIC

352 - 602

Acoustic configuration: Extremely low noise (EN) / Voltage: 400/3/50 ELECTRICAL DATA

Size F.L.A. - FULL LOAD CURRENT AT MAX ADMISSIBLE CONDITIONS F.L.A. - Total A F.L.I. FULL LOAD POWER INPUT AT MAX ADMISSIBLE CONDITION F.L.I. - Total M.I.C. MAXIMUM INRUSH CURRENT M.I.C. - Value kW A 79.3 46.7 261.7 90.6 51.8 308.7 91.7 55.3 368.8 97.2 58.1 374.3 106.6 64.5 383.7 117.9 69.6 395 128.6 77.8 405.7

352

402

432

452

502

552

602

voltage unbalance: max 2 % power supply: 400/3/50 Hz +/-6% Electrical data refer to standard units; according to the installed accessories, the data can suffer light variations.

INTERNAL EXCHANGER PRESSURE DROPS (SC-EN)

EVAPORATOR PRESSURE DROP LIMIT. CAUTION: DO NOT USE OVER THIS LIMIT

100

35 2 55 2 40 2 45 2 43 2 50 2 60 2

90 80 70 60 50

Qmin [l/s] 352 402 432 452 502 552 602 1 .9 2.2 2.4 2.7 3.0 3.2 3.4

Qmax [l/s] 5.3 5.9 6.5 7.2 8.0 8.8 9.1

40

30

20

15

2

3

4

5

6

7

8

9

10

EVAPORATOR PRESSURE DROP LIMIT. CAUTION: DO NOT USE UNDER THIS LIMIT

ACCESSORIES

BT07N005GB-00

WATER FILTER Pressure drop of the "water filter" accessory to be added to the pressure drop of the unit.

P kPa 30

20

10

0 2 3 4 5 6 7 8 9 10 11 12 13 14 Q = l/s

Q = water flow dP = pressure drop 14

HYDRONIC

352 - 602

EXCHANGER PRESSURE DROP PARTIAL ENERGY RECOVERY

Q[L/S]= WATER-FLOW RATE DP = PRESSURE DROP

EXCHANGER PRESSURE DROP TOTAL ENERGY RECOVERY

Q[L/S]= WATER-FLOW RATE DP = PRESSURE DROP

15

BT07N005GB-00

HYDRONIC

352 - 602

ACOUSTIC CONFIGURATION: COMPRESSORS SOUNDPROOFING (SC) COOLING PERFORMANCE

Size

kWf

25

kWe kWf

30

kWe kWf

32

kWe kWf

35

kWe kWf

38

kWe kWf

41

kWe kWf

44

kWe

5 6 7

90.9 94.0 96.6 98.9 100.8 102.2 103.8 107.0 109.8 112.4 114.6 116.5 113.8 117.3 120.1 122.4 124.1 125.2 123.0 126.7 129.9 132.7 134.9 136.6 133.8 138.0 141.7 144.9 147.5 149.6 146.0 150.3 154.2 157.8 161.0 163.9 166.1 172.0 177.1 181.6 185.4 188.5

22.2 22.0 21.9 22.1 22.6 23.3 25.8 25.7 25.7 25.9 26.2 26.7 29.2 29.1 29.2 29.5 30.1 30.9 31.5 31.8 32.1 32.3 32.5 32.6 35.1 35.5 35.9 36.2 36.4 36.7 38.9 39.3 39.7 40.0 40.4 40.8 42.9 43.0 43.2 43.5 43.9 44.4

87.2 89.4 91.6 93.7 95.7 97.5 98.5 101.1 103.6 105.9 108.0 110.1 108.0 110.9 113.5 116.0 118.3 120.5 117.1 120.5 123.5 126.1 128.2 129.8 126.6 130.6 134.1 137.2 139.7 141.6 138.3 142.3 146.0 149.4 152.5 155.4 157.1 162.2 166.7 170.7 174.2 177.2

24.1 24.2 24.4 24.5 24.6 24.8 28.4 28.5 28.7 28.8 28.9 29.0 32.2 32.4 32.6 32.8 33.0 33.3 34.6 34.9 35.1 35.4 35.6 35.8 38.6 39.0 39.3 39.6 39.8 40.1 42.6 42.9 43.3 43.7 44.1 44.4 47.4 47.8 48.1 48.5 48.8 49.0

85.5 87.5 89.6 91.6 93.6 95.6 96.3 98.8 101.1 103.3 105.5 107.5 105.6 108.2 110.8 113.4 115.8 118.2 114.6 117.9 120.8 123.3 125.4 127.0 123.6 127.6 131.0 134.0 136.4 138.4 135.1 139.0 142.5 145.9 149.0 151.8 153.5 158.3 162.6 166.5 169.9 172.8

25.0 25.2 25.4 25.5 25.5 25.5 29.5 29.7 29.8 29.9 30.0 30.0 33.5 33.7 33.9 34.1 34.3 34.4 35.9 36.2 36.4 36.7 36.9 37.1 40.1 40.4 40.7 41.0 41.3 41.6 44.2 44.5 44.9 45.3 45.6 46.0 49.3 49.7 50.1 50.4 50.7 50.9

82.7 84.6 86.5 88.5 90.5 92.5 93.0 95.2 97.4 99.6 101.7 103.8 101.8 104.2 106.7 109.2 111.8 114.3 110.6 113.8 116.6 119.0 121.0 122.6 119.2 122.9 126.2 129.0 131.5 133.5 130.1 133.8 137.2 140.5 143.5 146.2 147.9 152.5 156.6 160.3 163.5 166.3

26.4 26.7 26.9 27.0 27.0 26.9 31.1 31.4 31.6 31.7 31.7 31.7 35.5 35.8 36.0 36.2 36.3 36.3 38.0 38.3 38.6 38.8 39.0 39.2 42.4 42.7 43.1 43.3 43.6 43.8 46.7 47.0 47.4 47.7 48.1 48.4 52.2 52.7 53.1 53.4 53.6 53.8

79.7 81.5 83.4 85.3 87.3 89.3 89.6 91.7 93.8 95.9 97.9 100.0 97.9 100.1 102.5 104.9 107.4 110.0 106.4 109.4 112.1 114.4 116.4 118.0 114.8 118.1 121.2 123.9 126.4 128.6 124.9 128.4 131.7 134.9 137.8 140.5 142.3 146.7 150.6 154.2 157.4 160.1

28.0 28.2 28.4 28.5 28.6 28.5 32.9 33.1 33.3 33.4 33.5 33.5 37.7 38.0 38.2 38.3 38.4 38.4 40.3 40.6 40.8 41.0 41.3 41.5 44.8 45.2 45.5 45.8 46.0 46.2 49.4 49.7 50.0 50.3 50.7 51.0 55.2 55.6 56.0 56.3 56.6 56.8

76.3 78.3 80.2 82.1 84.0 86.0 86.1 88.1 90.2 92.2 94.2 96.3 93.8 96.0 98.2 100.4 102.8 105.1 102.0 104.9 107.4 109.7 111.6 113.2 110.3 113.2 116.0 118.7 121.2 123.6 119.4 122.8 126.0 129.1 131.9 134.6 136.5 140.9 144.8 148.3 151.4 154.1

29.7 29.8 30.0 30.1 30.3 30.4 34.7 34.9 35.0 35.2 35.3 35.4 39.9 40.2 40.4 40.5 40.6 40.7 42.7 43.0 43.2 43.4 43.6 43.8 47.2 47.7 48.1 48.4 48.6 48.7 52.2 52.5 52.8 53.1 53.4 53.7 58.4 58.7 58.9 59.2 59.5 59.8

72.8 74.9 77.0 78.9 80.8

31.6 31.5 31.6 31.8 32.1

352

8 9 10 5 6 7

82.6 84.6 86.6 88.6 90.6 92.6 89.6 91.7 93.7 95.8 97.8 99.8 97.4 100.1 102.5 104.7 106.6

36.5 36.6 36.8 37.0 37.2 37.4 42.3 42.4 42.6 42.8 43.0 43.3 45.3 45.5 45.7 45.9 46.1

402

8 9 10 5 6 7

432

8 9 10 5 6 7

452

8 9 10 5 6 7

105.8 108.2 110.7 113.3 115.9

49.8 50.4 50.9 51.2 51.3

502

8 9 10 5 6 7

113.8 117.0 120.1 123.1 125.8

55.2 55.5 55.7 56.0 56.3

552

8 9 10 5 6 7

BT07N005GB-00

130.7 135.1 139.0 142.5 145.6 148.2

61.7 61.7 61.9 62.1 62.4 62.9

602

8 9 10

kWf = Cooling capacity in kW kWe = Compressor power input in kW To = Internal exchanger water outlet temperature in° C DT = difference between inlet / outlet water temperature = 5°C

16

HYDRONIC

352 - 602

Acoustic configuration: Extremely low noise (EN) GENERAL TECHNICAL SPECIFICATIONS

Size COOLING Cooling capacity Compressor power input Total power input Heating capacity total recovery Heating capacity partial recovery EER ESEER COMPRESSOR Type of compressors No. of Compressors Rated power (C1) Oil charge (C1) Refrigerant circuits INTERNAL EXCHANGER Type of internal exchanger No. of internal exchangers Water flow rate (Internal Exchanger) internal exchanger pressure drop Water content EXTERNAL SECTION FANS Type of fans Number of fans Standard air flow CONNECTIONS Water fittings NOISE LEVELS Sound Pressure Level (10m) DIMENSIONS Length Depth Height STANDARD UNIT WEIGHTS Shipping weight Operating weight dB(A) mm mm mm kg kg 5 Nr l/s kPa l 6 Nr l/s 1 2 3 3 kW kW kW kW kW 84.1 28.1 30.9 112 28 2.72 3.77 SCROLL 2 35 8 1 PHE 1 4 60 6 AX 2 9836 2" 1/2 48 2850 1115 2210 1060 1066 94.4 33 35.8 128 31.9 2.64 3.82 SCROLL 2 40 11 1 PHE 1 4.5 61 6.5 AX 2 9836 2" 1/2 49 2850 1115 2210 1085 1092 103 38 40.8 144 35.2 2.52 3.79 SCROLL 2 43 10 1 PHE 1 4.9 60 7 AX 2 9836 2" 1/2 49 2850 1115 2210 1103 1110 112 41 43.8 152 38.3 2.56 3.94 SCROLL 2 45 10 1 PHE 1 5.4 56 8 AX 2 9391 2" 1/2 49 2850 1115 2210 1131 1139 121 45.6 48.4 166 41.6 2.5 4.03 SCROLL 2 50 11 1 PHE 1 5.8 54 9 AX 2 9391 2" 1/2 50 2850 1115 2210 1177 1186 132 49.7 52.5 180 45.4 2.51 3.92 SCROLL 2 55 13 1 PHE 1 6.3 54 9.5 AX 2 9048 2" 1/2 51 2850 1115 2210 1203 1213 151 53.6 57.8 205 51.2 2.61 3.68 SCROLL 2 60 13 1 PHE 1 7.2 64 10 AX 3 11664 2" 1/2 51 2850 1115 2210 1285 1295

352

402

432

452

502

552

602

Nr HP l Nr

(1) data referred to the following conditions : internal exchanger water = 12/7°C external exchanger air intake 35°C (2) According to EUROVENT the Total Power Input does not consider the pump share, required to overcome the pressure drop for the solution circulation inside the exchangers. (3) recovery exchanger water=40/45°C

(5) PHE = plates S&T = tube bundle (6) AX = axial-flow fan

Acoustic configuration: Extremely low noise (EN) OPERATING LIMITS (COOLING)

Size EXTERNAL EXCHANGER Max air intake temperature Max air intake temperature Max air intake temperature Min. air intake temperature Min. air intake temperature Min. air intake temperature Min. air intake temperature INTERNAL EXCHANGER Max water inlet temperature Min. water outlet temperature Min. water outlet temperature 1 2 3 4 5 6 7 °C °C °C °C °C °C °C °C °C °C 47 50 52 -10 -7 2 11 23 5 -8 46 49 51 -10 -7 2 11 23 5 -8 43 46 48 -10 -7 2 11 23 5 -8 45 48 50 -10 -7 2 11 23 5 -8 43 46 48 -10 -7 2 11 23 5 -8 41 44 46 -10 -7 2 11 23 5 -8 44 47 49 -10 -7 2 11 23 5 -8

352

402

432

452

502

552

602

8 9

data referred to the following conditions : internal exchanger water = 12/7°C difference between inlet / outlet water temperature = 5°C Warning: the still air condition is meant as absence of air flow to the unit. Any wind condition can let air pass through the condenser coil thus worsening the operating limits of the unit (see limits with air speed at 0,5 m/s & 1 m/s). Note: the Standard unit shall never be exposed, at temperatures below -10°C while supplied. On request it's possible to take countermeasures for the operation also in more critical environmental conditions. For special conditions contact our Sales Office. ATTENTION: IN CASE OF PREDOMINANT WINDS, WINDBREAK BARRIERS ARE NECESSARY.

(1) Max inlet temperature - unit at full load (2) Inlet air Max Temperature - unit at full load with standard limit device For the sound levels in this operation condition please refer to the SC version data (3) Max inlet air temperature - capacity-controlled unit with standard limit device (4) Min inlet air temperature - unit at full load and motionless ambient air (5) Min inlet air temperature - unit at partial load and motionless ambient air (6) Min inlet air temperature - unit at partial load and air speed of 0.5 m/s. (7) Min inlet air temperature - unit at partial load and air speed of 1 m/s. (8) standard unit external exchanger air intake 35°C (9) B = Low Temperature external exchanger air intake 35°C Fluid with ethylene glycol of 40%

17

BT07N005GB-00

HYDRONIC

352 - 602

Acoustic configuration: Extremely low noise (EN) / Voltage: 400/3/50 ELECTRICAL DATA

Size F.L.A. - FULL LOAD CURRENT AT MAX ADMISSIBLE CONDITIONS F.L.A. - Total A F.L.I. FULL LOAD POWER INPUT AT MAX ADMISSIBLE CONDITION F.L.I. - Total M.I.C. MAXIMUM INRUSH CURRENT M.I.C. - Value kW A 79.3 46.7 261.7 90.6 51.8 308.7 91.7 55.3 368.8 97.2 58.1 374.3 106.6 64.5 383.7 117.9 69.6 395 128.6 77.8 405.7

352

402

432

452

502

552

602

voltage unbalance: max 2 % power supply: 400/3/50 Hz +/-6% Electrical data refer to standard units; according to the installed accessories, the data can suffer light variations.

CORRECTION FACTOR FOR ANTIFREEZE SOLUTIONS

% ethylene glycol by weight

Freezing temperature Safety temperature Cooling Capacity Factor Compressor input Factor Internal exchanger Glycol solution flow Factor Pressure drop Factor °C °C Nr Nr Nr Nr 5% -2.0 3.0 0.995 0.997 1.003 1.029 10% -3.9 1.0 0.990 0.993 1.010 1.060 15% -6.5 -1.0 0.985 0.990 1.020 1.090 20% -8.9 -4.0 0.981 0.988 1.033 1.118 25% -11.8 -6.0 0.977 0.986 1.050 1.149 30% -15.6 -10.0 0.974 0.984 1.072 1.182 35% -19.0 -14.0 0.971 0.982 1.095 1.211 40% -23.4 -19.0 0.968 0.981 1.124 1.243

The correction factors shown refer to water and glycol ethylene mixes used to prevent the formation of frost on the exchangers in the water circuit during inactivity in winter.

FOULING CORRECTION FACTOR

m² °C/W 0.44 x 10^(-4) 0.88 x 10^(-4) 1.76 x 10^(-4) Cooling capacity correction factors 1.00 0.97 0.94 INTERNAL EXCHANGER Compressor power input correction factor 1.00 0.99 0.98

OVERLOAD AND CONTROL DEVICE CALIBRATION

High pressure switch Low pressure switch Low pressure switch (Brine) Antifreeze protection High pressure safety valve Low pressure safety valve Max no. of compressor starts per hour High compressor discharge temperature safety thermokPa kPa kPa °C kPa kPa Nr °C OPEN 4050 450 200 3.0 CLOSED 3300 600 350 5.50 VALUE 4500 3000 10.00 120

BT07N005GB-00

EXCHANGER OPERATING LIMITS

INTERNAL EXCHANGER DPr (S - B) kPa CLIVET (C) PED (CE) 4500 4500 4500 4500 DPw kPa 1000 1000

DPr = Maximum operating pressure on refrigerant side DPw = Maximum operating pressure on water side for different approvals contact our sales office

18

HYDRONIC

352 - 602

ACOUSTIC CONFIGURATION: EXTREMELY LOW NOISE (EN) COOLING PERFORMANCE

Size

kWf

25

kWe kWf

30

kWe kWf

32

kWe kWf

35

kWe kWf

38

kWe kWf

41

kWe kWf

44

kWe

5 6 7

89.8 92.5 94.9 97.0 99.0 100.8 101.2 104.0 106.4 108.4 109.9 110.9 109.4 113.1 116.4 119.2 121.6 123.5 119.7 122.6 125.5 128.4 131.3 134.2 129.2 134.3 138.6 142.0 144.5 146.2 136.9 140.4 143.4 146.0 148.2 149.9 158.5 163.4 167.5 170.9 173.7 175.7

22.9 22.8 22.8 23.0 23.4 23.9 27.1 27.1 27.2 27.5 28.0 28.7 31.3 31.1 31.1 31.2 31.6 32.3 33.0 33.8 34.3 34.5 34.5 34.2 36.9 36.9 37.1 37.4 37.8 38.4 43.1 43.9 44.5 44.9 45.2 45.3 45.3 45.6 45.9 46.2 46.6 47.0

85.1 87.3 89.5 91.5 93.4 95.2 95.8 98.2 100.4 102.6 104.6 106.6 104.3 107.0 109.6 111.9 114.0 115.9 113.0 115.9 118.6 121.2 123.5 125.7 122.5 126.1 129.4 132.4 134.9 137.1 131.9 135.9 139.3 142.0 144.2 145.8 150.8 156.1 160.4 163.6 165.9 167.2

25.2 25.3 25.4 25.6 25.7 25.8 29.7 29.9 30.1 30.3 30.5 30.8 34.1 34.3 34.5 34.7 35.0 35.4 36.7 37.2 37.5 37.8 38.0 38.1 40.8 41.2 41.7 42.1 42.4 42.8 45.3 45.7 46.1 46.4 46.5 46.6 48.5 48.8 49.1 49.4 49.8 50.2

83.2 85.3 87.3 89.3 91.2 93.0 93.6 95.8 98.0 100.2 102.4 104.5 102.1 104.5 106.9 109.1 111.1 113.1 110.3 113.2 115.9 118.3 120.5 122.6 119.7 123.0 126.1 128.9 131.5 133.8 129.2 133.3 136.7 139.5 141.6 143.2 147.5 152.7 157.0 160.2 162.4 163.5

26.1 26.3 26.5 26.6 26.7 26.7 30.8 31.0 31.2 31.4 31.6 31.8 35.4 35.6 35.8 36.1 36.4 36.6 38.1 38.6 38.9 39.2 39.5 39.6 42.4 42.9 43.3 43.7 44.1 44.4 46.6 47.0 47.3 47.5 47.7 47.8 50.1 50.4 50.8 51.1 51.4 51.8

80.3 82.2 84.1 86.0 87.9 89.8 90.3 92.3 94.4 96.6 98.9 101.2 98.4 100.7 102.9 105.0 107.0 108.9 106.2 109.0 111.6 114.0 116.2 118.1 115.3 118.5 121.5 124.2 126.9 129.3 124.4 128.4 131.8 134.6 136.7 138.2 142.0 147.2 151.4 154.4 156.4 157.4

27.6 27.9 28.1 28.2 28.2 28.2 32.5 32.8 33.0 33.2 33.3 33.4 37.4 37.7 38.0 38.2 38.4 38.6 40.4 40.7 41.0 41.3 41.6 41.8 44.7 45.2 45.6 46.0 46.3 46.5 49.1 49.4 49.7 49.9 50.1 50.2 53.0 53.3 53.6 54.0 54.3 54.6

77.3 79.1 81.0 82.8 84.7 86.6 86.8 88.7 90.8 92.9 95.2 97.5 94.5 96.7 98.9 101.0 103.0 105.0 102.2 104.9 107.4 109.7 111.9 114.0 110.9 114.1 117.2 120.1 122.8 125.3 118.6 122.5 125.8 128.4 130.5 131.9 136.2 141.1 145.0 148.0 149.9 150.8

29.2 29.4 29.6 29.8 29.8 29.8 34.3 34.6 34.8 34.9 35.0 35.1 39.6 39.8 40.1 40.3 40.4 40.5 42.7 43.0 43.3 43.5 43.7 43.9 47.0 47.3 47.6 47.9 48.2 48.4 52.2 52.5 52.8 53.0 53.2 53.4 56.4 56.7 57.0 57.3 57.6 58.0

74.2 76.0 77.8 79.7 81.6 83.5 83.2 85.2 87.1 89.2 91.3 93.4 90.3 92.7 95.0 97.2 99.3 101.3 98.1 100.6 103.0 105.4 107.8 110.1 106.3 110.0 113.4 116.4 119.2 121.7 111.9 115.5 118.6 121.1 123.0 124.3 130.0 134.4 138.1 140.8 142.7 143.7

30.8 31.0 31.2 31.4 31.5 31.6 36.2 36.4 36.5 36.7 36.9 37.0 41.9 42.1 42.3 42.4 42.5 42.6 45.0 45.3 45.6 45.8 45.9 45.9 49.3 49.4 49.5 49.6 49.8 50.1 56.0 56.3 56.6 56.9 57.2 57.4 60.3 60.5 60.8 61.1 61.4 61.8

71.1 72.9 74.7 76.6 78.5

32.5 32.6 32.8 33.0 33.2

352

8 9 10 5 6 7

79.6 81.6 83.5 85.4 87.2

38.1 38.2 38.3 38.5 38.8

402

8 9 10 5 6 7

432

8 9 10 5 6 7

94.1 96.3 98.7 101.2 103.8

47.3 47.7 48.0 48.1 48.0

452

8 9 10 5 6 7

502

8 9 10 5 6 7

8 9 10 5 6 7

123.3 127.2 130.4 133.0 134.9

64.6 64.8 65.0 65.3 65.7

602

8 9 10

kWf = Cooling capacity in kW kWe = Compressor power input in kW To = Internal exchanger water outlet temperature in° C DT = difference between inlet / outlet water temperature = 5°C

19

BT07N005GB-00

552

HYDRONIC

352 - 602

TECHNICAL CHARACTERISTICS OF ACCESSORIES SCP1 - set point compensation with 4-20 mA signal SPC4 - compensation of set point with signal 0-10 V

SET - °C SET - °C 0 2 4 6 8 10 12 14 16 18 20 22 input - mA 20 18 16 14 12 10 8 6 4 2 0 20 18 16 14 12 10 8 6 4 2 0 0 2 4 6 8 10 input - V 12

The set point compensation with signal 4÷20 mA or 0÷10 V changes the calibration of the set point, increasing or decreasing it depending on the system needs.

SCP2 - set point compensation with outside temperature probe

Set point compensation by air temperature probe varies the value of the set point according to the outside air temperature, allowing energy savings

Set - °C

18 16 14 12 10 8 6 4 2 0 12 14 16 18 20 22 24 26 28 30 32 34 36 air - °C

SCP3 - set point compensation according to the outside enthalpy

It allows to modulate the unit set point according to the external enthalpy optimizing the unit energy efficiency. The humidity probe is electronically connected to the main control module present in the unit.

PM - phase monitor

The phase monitor allows to check the right presence of electric supply phases for 400/3/50 units.

PFCP - power factor correction capacitors (cosfi > 0.9)

BT07N005GB-00

the power factor correction capacitors increase the cosF value, reducing the apparent current on the supply line to the chiller assembly With costs of less than 0.9 the energy provider applies surcharges for the drawing of reactive energy.

SFSTR - breakaway current reducing device (soft start)

Starting up a motor directly can overload the electricity network, with start-up currents up to 8 times the nominal current. Thanks to the breakaway current reduction device, start-up takes place gradually, with the start-up current being limited during this period of time. The start-up current can therefore be reduced to 3.5 - 4 times the nominal current, meaning that the power systems and protection devices can be sized with lower parameters.

Motor current I (A) DoL (direct on line starting)

Soft Start

20

Motor speed

(rpm)

HYDRONIC

352 - 602

RCMRX - remote microprocessor control unit

the remote control allows the remote display and operation of functions of the microprocessor on the unit

separately supplied accessories

CMS4 - CAN/MODBUS serial converter kit

The serial communications module with supervisor (MODBUS) provides the unit with an RS 485 outlet. This makes it possible to obtain remote service and supervision with standard modbus protocol. It is possible to connect up to 127 units to a single supervision system. Connection to a PC must be via an RS485/232 converter; the serial RS232 allows maximum length of 10 metres. The serial communication module (MODBUS) is necessary if the unit is connected to ELFOCONTROL.

CMSC6 - CAN/LON WORKS serial converter kit

LonWorks technology is a complete platform for the implementation of network system. These networks consist of smart control systems or "nodes" that interact with their environment and communicate with one another using a common message based on the protocol (LonTalk®). A LonWorks network may have up to 32,685 nodes divided in 255 sub-networks (127 nodes/subnetwork). The gateway device is already configured according to the Echelon classification for the type of unit for which it is intended, with a number of managed variables which are the subset of those managed natively by the machine, and in any case able to receive the standard Echelon profiles. The supply of this device does not include configuration and operation of the LonWorks to which it is connected. These actions are left to the supplier of the supervision system.

MSLX - Master-Slave function

The master-slave function allows to control and optimize th eoperation of several units on the same water circuit. The Clivet Talk local network can be extended to up to 6 units.

separately supplied accessories

DLX - data logger

The data logger is a sort of black box which records all parameters and tracks them in case of an alarm.

separately supplied accessories

21

BT07N005GB-00

HYDRONIC

352 - 602

PGCC - condenser coil and compressor compartment protection grill.

The protection grilles prevent access to hazardous parts in the unit by unauthorized personnel.

CCCA - copper / aluminium condenser coils with acrylic lining

The package heat exchanger finned coils in copper /aluminium with acrylic covering can be used in places with concentrations in the air of saline and moderately aggressive agents.

CCCC - copper / copper condenser coils

The package heat exchanger finned coils in copper /copper can be used in places with concentrations in the air of saline and highly aggressive agents.

AMMX - spring antivibration mounts

The spring anti-vibration devices reduce the vibration of the compressor during operation, and are attached to the feet of the base.

9 5÷ 10 5

separately supplied accessories

MHP - high and low pressure gauges

BT07N005GB-00

22 Analogue pressure gauges that display the operating pressure in the high and low pressure sections of the refrigerant circuit

HYDRONIC

352 - 602

DIMENSIONAL DRAWING DIMENSIONS: WSAT-XSC 352-602 "SC-EN" CONFIGURATION

2

8 519

5 7 228 1 OD 4 4 5 4

227

9

6

4

2210

3 123 992 279 790 3 10 250 770 2850 10 250 3 790 53 1115 1221

3

53

15 (13) 1100

(11) 700

(12) 700

625

1600

625

W1

W2

P

O

M

N

SC Size

M N O P OD Length Depth Height W1 W2 W3 W4 Operating weight Shipping weight mm mm mm mm mm mm mm mm kg kg kg kg kg kg

EN 502 1102 1748 572 548 76,1 2850 1115 2210 35 237 349 230 1171 1162 552 1098 1752 572 548 76,1 2850 1115 2210 364 242 357 235 1198 1188 602 1110 1740 571 549 76,1 2850 1115 2210 387 260 380 254 1280 1270 352 1115 1735 579 536 76,1 2850 1115 2210 324 220 313 207 1066 1060 402 1110 1740 579 536 76,1 2850 1115 2210 332 225 321 214 1092 1085 432 1108 1742 578 537 76,1 2850 1115 2210 338 228 327 217 1110 1103 452 1113 1737 577 538 76,1 2850 1115 2210 346 235 335 224 1139 1131 502 1105 1745 577 538 76,1 2850 1115 2210 361 243 350 232 1186 1177 552 1101 1749 576 539 76,1 2850 1115 2210 370 247 359 236 1213 1203 602 1112 1738 576 539 76,1 2850 1115 2210 393 266 382 255 1295 1285

352 1111 1739 574 546 76,1 2850 1115 2210 318 215 311 208 1051 1045

402 1107 1743 574 546 76,1 2850 1115 2210 326 219 319 212 1077 1070

432 1105 1745 573 547 76,1 2850 1115 2210 332 222 325 216 1095 1088

452 1110 1740 572 548 76,1 2850 1115 2210 340 229 333 223 1124 1116

Particular accessories, executions or versions can bring about a great variation of the mass represented here. Please contact our Technical Department.

23

BT07N005GB-00

(1) INTERNAL EXCHANGER (EVAPORATOR) (2) EXTERNAL EXCHANGER (CONDENSER) (3) HOLE TO HANG UNIT (4) LIFTING BRACKETS (REMOVABLE, IF REQUIRED, AFTER POSITIONING THE UNIT) (5) ELECTRICAL PANEL (6) POWER INPUT (7) SOUNDPROOFED CABIN (8) INTERNAL EXCHANGER WATER INLET (9) INTERNAL EXCHANGER WATER OUTLET (10) LIFTING LUGS (11) MINIMUM DIMENSION FOR A SAFE PASSAGE. (12) MINIMUM DIMENSION FOR A SAFE PASSAGE WHEN THE DOOR OF THE ELECTRICAL SWITCHBOARD IS OPEN. (13) MINIMUM DIMENSION FOR A PROPER AIR FLOW TO THE CONDENSER COIL. (14) MINIMUM DIMENSION ON THE ELECTRICAL SWITCHBOARD SIDE. (15) CLEARANCE ACCESS RECOMMENDED (G) BARYCENTRE

(13) 1100

(14) 1640

35

W3

W4

1045

G

35

HYDRONIC

352 - 602

DIMENSIONAL DRAWING DIMENSIONS: WSAT-XSC 352-602 " SC - EN " CONFIGURATION WITH HYDROPACK

2

8 9

OD 5 7 228 6 4 1 405 4 4 5 4

227

3 123 992 279 790 3 10 250 770 2850 10 714 250 790 53

2210

3

3

1115 1221

53

15 (13) 1100

(11) 700

(12) 700

625

1600

625

W1

W2

P

O

M

N

BT07N005GB-00

(1) INTERNAL EXCHANGER (EVAPORATOR) (2) EXTERNAL EXCHANGER (CONDENSER) (3) HOLE TO HANG UNIT (4) LIFTING BRACKETS (REMOVABLE, IF REQUIRED, AFTER POSITIONING THE UNIT) (5) ELECTRICAL PANEL (6) POWER INPUT (7) SOUNDPROOFED CABIN (8) INTERNAL EXCHANGER WATER INLET (9) INTERNAL EXCHANGER WATER OUTLET (10) LIFTING LUGS (11) MINIMUM DIMENSION FOR A SAFE PASSAGE. (12) MINIMUM DIMENSION FOR A SAFE PASSAGE WHEN THE DOOR OF THE ELECTRICAL SWITCHBOARD IS OPEN. (13) MINIMUM DIMENSION FOR A PROPER AIR FLOW TO THE CONDENSER COIL. (14) MINIMUM DIMENSION ON THE ELECTRICAL SWITCHBOARD SIDE. (15) CLEARANCE ACCESS RECOMMENDED (G) BARYCENTRE

SC Size

OD Length Depth Height mm mm mm mm

(13) 1100

(14) 1640

35

W3

W4

1045

G

35

EN 502 76,1 2850 1115 2210 552 76,1 2850 1115 2210 602 76,1 2850 1115 2210 352 76,1 2850 1115 2210 402 76,1 2850 1115 2210 432 76,1 2850 1115 2210 452 76,1 2850 1115 2210 502 76,1 2850 1115 2210 552 76,1 2850 1115 2210 602 76,1 2850 1115 2210

352 76,1 2850 1115 2210

402 76,1 2850 1115 2210

432 76,1 2850 1115 2210

452 76,1 2850 1115 2210

24

HYDRONIC

352 - 602

DIMENSIONAL DRAWING DIMENSIONAL: WSAT-XSC 352-602 SETUP " SC - EN " WITH HYDROPACK AND STORAGE TANK

2

8 9 746 5 7 228 6 4 1 16 OD 5 4 4

4 855 260 279 790 3 10 250 770 2850 10 250 3 790 53

2210

3

3

1115 1221

53

15 (13) 1100

(11) 700

(12) 700

625

1600

625

W1

W2

P

O

M

N

SC Size

OD Length Depth Height mm mm mm mm

EN 502 76,1 2850 1115 2210 552 76,1 2850 1115 2210 602 76,1 2850 1115 2210 352 76,1 2850 1115 2210 402 76,1 2850 1115 2210 432 76,1 2850 1115 2210 452 76,1 2850 1115 2210 502 76,1 2850 1115 2210 552 76,1 2850 1115 2210 602 76,1 2850 1115 2210

352 76,1 2850 1115 2210

402 76,1 2850 1115 2210

432 76,1 2850 1115 2210

452 76,1 2850 1115 2210

25

BT07N005GB-00

(1) INTERNAL EXCHANGER (EVAPORATOR) (2) EXTERNAL EXCHANGER (CONDENSER) (3) HOLE TO HANG UNIT (4) LIFTING BRACKETS (REMOVABLE, IF REQUIRED, AFTER POSITIONING THE UNIT) (5) ELECTRICAL PANEL (6) POWER INPUT (7) SOUNDPROOFED CABIN (8) INTERNAL EXCHANGER WATER INLET (9) INTERNAL EXCHANGER WATER OUTLET (10) LIFTING LUGS (11) MINIMUM DIMENSION FOR A SAFE PASSAGE. (12) MINIMUM DIMENSION FOR A SAFE PASSAGE WHEN THE DOOR OF THE ELECTRICAL SWITCHBOARD IS OPEN. (13) MINIMUM DIMENSION FOR A PROPER AIR FLOW TO THE CONDENSER COIL. (14) MINIMUM DIMENSION ON THE ELECTRICAL SWITCHBOARD SIDE. (15) CLEARANCE ACCESS RECOMMENDED (16) STORAGE (G) BARYCENTRE

(13) 1100

(14) 1640

35

W3

W4

1045

G

35

HYDRONIC

352 - 602

DIMENSIONAL DRAWING DIMENSIONAL: WSAT-XSC 352-602 SETUP " SC - EN " WITH HYDROPACK AND PRIMARY/SECONDARY STORAGE TANK

2

342

8 9

5 7

228

1

16

OD 5 4 4

405

6

4 4

2210

250

605

260

279 790

3

10

250 770 2850

10

250

3

790 53

3

3

1115 1221

53

15

(12) 700 (13) 1100

(11) 700

625

1600

625

W1

W2

P

O

M

N

BT07N005GB-00

(1) INTERNAL EXCHANGER (EVAPORATOR) (2) EXTERNAL EXCHANGER (CONDENSER) (3) HOLE TO HANG UNIT (4) LIFTING BRACKETS (REMOVABLE, IF REQUIRED, AFTER POSITIONING THE UNIT) (5) ELECTRICAL PANEL (6) POWER INPUT (7) SOUNDPROOFED CABIN (8) INTERNAL EXCHANGER WATER INLET (9) INTERNAL EXCHANGER WATER OUTLET (10) LIFTING LUGS (11) MINIMUM DIMENSION FOR A SAFE PASSAGE. (12) MINIMUM DIMENSION FOR A SAFE PASSAGE WHEN THE DOOR OF THE ELECTRICAL SWITCHBOARD IS OPEN. (13) MINIMUM DIMENSION FOR A PROPER AIR FLOW TO THE CONDENSER COIL. (14) MINIMUM DIMENSION ON THE ELECTRICAL SWITCHBOARD SIDE. (15) CLEARANCE ACCESS RECOMMENDED (16) STORAGE (G) BARYCENTRE

SC

(13) 1100

(14) 1640

35

W3

W4

1045

G

35

EN 402 76,1 2850 1115 2210 432 76,1 2850 1115 2210 452 76,1 2850 1115 2210 502 76,1 2850 1115 2210 552 76,1 2850 1115 2210 602 76,1 2850 1115 2210

Size

OD Length Depth Height mm mm mm mm

352 76,1 2850 1115 2210

402 76,1 2850 1115 2210

432 76,1 2850 1115 2210

452 76,1 2850 1115 2210

502 76,1 2850 1115 2210

552 76,1 2850 1115 2210

602 76,1 2850 1115 2210

352 76,1 2850 1115 2210

26

HYDRONIC

352 - 602

DIMENSIONAL DRAWING DIMENSIONAL: WSAT-XSC 352-602 SETUP " SC - EN " WITH STORAGE TANK

2

342

8 9

5 7

228

1

16

OD 5 4 4

405

6

4 4

2210

250

605

260

279 790

3

10

250 770 2850

10

250

3

790 53

3

3

1115 1221

53

15

(12) 700 (13) 1100

(11) 700

625

1600

625

W1

W2

P

O

M

N

SC Size

OD Length Depth Height mm mm mm mm

EN 502 76,1 2850 1115 2210 552 76,1 2850 1115 2210 602 76,1 2850 1115 2210 352 76,1 2850 1115 2210 402 76,1 2850 1115 2210 432 76,1 2850 1115 2210 452 76,1 2850 1115 2210 502 76,1 2850 1115 2210 552 76,1 2850 1115 2210 602 76,1 2850 1115 2210

352 76,1 2850 1115 2210

402 76,1 2850 1115 2210

432 76,1 2850 1115 2210

452 76,1 2850 1115 2210

27

BT07N005GB-00

(1) INTERNAL EXCHANGER (EVAPORATOR) (2) EXTERNAL EXCHANGER (CONDENSER) (3) HOLE TO HANG UNIT (4) LIFTING BRACKETS (REMOVABLE, IF REQUIRED, AFTER POSITIONING THE UNIT) (5) ELECTRICAL PANEL (6) POWER INPUT (7) SOUNDPROOFED CABIN (8) INTERNAL EXCHANGER WATER INLET (9) INTERNAL EXCHANGER WATER OUTLET (10) LIFTING LUGS (11) MINIMUM DIMENSION FOR A SAFE PASSAGE. (12) MINIMUM DIMENSION FOR A SAFE PASSAGE WHEN THE DOOR OF THE ELECTRICAL SWITCHBOARD IS OPEN. (13) MINIMUM DIMENSION FOR A PROPER AIR FLOW TO THE CONDENSER COIL. (14) MINIMUM DIMENSION ON THE ELECTRICAL SWITCHBOARD SIDE. (15) CLEARANCE ACCESS RECOMMENDED (16) STORAGE (G) BARYCENTRE

(13) 1100

(14) 1640

35

W3

W4

1045

G

35

HYDRONIC

352 - 602

CLIVET SPA Feltre (BL) ITALY Tel. + 39 0439 3131 Fax + 39 0439 313300 [email protected]

CLIVET ESPAÑA S.A. Madrid - SPAIN Tel. + 34 91 6658280 Fax + 34 91 6657806 [email protected]

CLIVET UK LTD Fareham (Hampshire) U.K. Tel. + 44 (0) 1489 572238 Fax + 44 (0) 1489 573033 [email protected]

CLIVET NEDERLAND B.V. Amersfoort - Netherlands Tel. + 31 (0) 33 7503420 Fax + 31 (0) 33 7503424 [email protected]

CLIVET SPA BUREAU DE LIAISON EN FRANCE Verrierès le Buisson - FRANCE Tel. + 33 (0)1 69 20 25 75 Fax + 33 (0)1 69 20 60 76 [email protected]

CLIVET GmbH Norderstedt - GERMANY Tel. +49 (0) 40 32 59 57-0 Fax +49 (0) 40 32 59 57-194 [email protected]

CLIVET TFAIR SYSTEMS (P)LTD. Malur - INDIA Tel. +91 8151 232683/5 Fax +91-8151-232684 [email protected]

The data contained in this bulletin is not binding and may be changed by the manufacturer without prior notice. All reproduction, even partial, is prohibited. © Copyright - CLIVET S.p.A. - Feltre (BL) - Italy

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