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AIR COOLED WATER CHILLERFROM 40 KW TO 55 KW

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Heat pump with radial fanOnly cOOing\vith radial fan

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!5101O<llV cooling*

R, H, CR, CHVersion*

40, 4S, SSSize

SIAL

ATMOS

DRACOyxDRACO

TAURUSModel Number Nomenclature

VEGA

THOR• Other features: water side differential pressure switch, relief valve, hydraulic optional kit includes also circulation pump.water tank, expansion tank, safety valve and discharge valve.

AIRCOOLEDWATERCHILLERS

Microprocessor: it controls automatically the regulation of the water temperature, the compressor timina. and the alarms.Itvisualizes on tlie display the running condition of the unit, the inlet temperature of the device, a-ndthe alarms' code.

• Electrical board: it includes automatic main ckcvit breaker \vith doer safety interlock, automatic control circuit breaker,compressor and fan contactcr, and terminal board tor the unit-microprocessor interface.All wire. and clamp. are numbered according to .tandard EN60204.

Refrigerant circuit: made of pickled copper, it includes lamination devices, dehydrator filter, hjgh and low pressureswitches, sight glass and humidity indicator, service connections, liquid line shut off faucet and solenoid valve, securityvalve.

Water side heating exchanger: stainless steel AISI316 brazed-welded plates exchanger with external insulation.

AII' side heating exchanger: it consists of an aluminum finned coil and copper tubes.

• Fans:axial type, directly coupled to the electric motor, singJephase, 6 poles, IP 54 protection, provided by inner thermalprotection. The fans are fitted \vith a safety guard on discharge air flow.

• Compressors: three phase scroll type, equipped \vith internal thermo protection and crankcase heater, situated in asound proof box.

• Frame: Self-supporting galvanized steel frame protected with polyester powder painting RAl 7037PB. Steel screws andbolts. The compressor is situated in a sound proof vane and separated from the air box,

Technical Features

Air·cooled water chiller units for outdoor installation, with axial fans. They are projected to obtain a noiseless, efficientoperation and reliable \vorking. easy to install and of reduced maintenance.All the units are completely factory tested before dispatch.

General Features

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Total heat recovery: heat exchanger that atlows the condensaticn heat recovery for others uses.

De-superheaters: permits to recover rill 25%of condensing heating for other purposes.

Operating kit up to ·2S·Cexternal air temperature: it atlows to the chiller to operate with10\'1external temperatures increasing the worklng limits.

Compressor faucet valves: they isolate the compressors from the cooling (-ircuit byenhancing the maintenance operations.

,Electronic expansion valve: for the condensed refrigerant rolling. In ccmoartson with thethermostatic valve it enables fast response rime according to the load variation byenhancing the unit performances.

Refrigerant gauges: installed on the unit, they show the operative pressures of the coolingcircuit on high and 10\'1 pressure side.

capacitor bank for compressor: the tools brings the consumption of the unit to costt=O,95by decreasing the absorbed reactive power

Control system and remote assistance: it allows the assistance and the unit control bymeans of web browser;web server remote ccnnection through corporate network. In caseof alarm an alert can be sent via SMSor e-mail. For simultaneous control till 6 or 18 units.

Compressors soft starters: enables the gradual start of compressors by limiting the initial starting current.

Accessories

Thermostatic expansion valve: itlaminates the condensed refrigerant.

Pressure differential switch water side: itworks as now control, it operate when thenow water reach the mtnlmum Ievel.

Air·cooler exchanger: finned coil directlydesigned by Frost Italv. Allows themaximum efficiency with minimal amountof

*Fan: axial (an type provided with nozzleand protection grill. It allows an optimJI airflow through the finned coil with minimalnoise level and power consumption.

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Microproc~ssor~it controts all device(unctions.

Water·cooler exchanger: plates type.Suitable for modern refrigel'ants. ~Ol'high efficiency and reliabilitv.

ICompressor! scroll high efficiency3·phase compressor. Forlownoiseworking.

Main components

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Spring anti-vibration dampers: they are more effective than rubber dampers, reduce thevibrations transmissionproducedby the device.

SIAL

ATMOS

DRACO

TAURUS

VEGA

THOR

AIRCOOLEDWATERCHILLERS

Rubber anti-vibration dampers: they reduce the vibrations transmissionproduced by thedevice.

Super low nolse version: it includes the noiselessversions tools plus an implementedcondensingcoli andcompressorsinsulation wlth soundproofing material.

Noiselessversion: with Flo\v grid tool, patented by E8Mpapst.it reduces the fan noiseofabout 3 d8(A) depending on the type of installation.

ECfans: With BLOCbrushlessmotor, with internal protection and fan speedcontrol integrated.Internal electrical insolatedwlth protection classI,IP 54,accordingto norm EN61800-S-1.The lrupelters are housed in aerodynamically shaped enclosures to increase the efficiency and decrease the noise level,complete with fan guards_

Fansspeedcontrol: the phasecot speedcontroller adjuststhe air now in order to optimizethe condensation(01'heat pump evaporation); the devicereduces the absorbedpower andthe noiseduring partial loads.

Special treatment: In case the units are to be located near the seasideor in aggressiveenvironment we recommend toprotect the exchangerwltb svitabte antt-corrcstcn treatments:- Copper finned conscu/cv- Treatedfinned coils

Metallic grill: finned coil metal grill for accidental impacts protection.

Flow switch: mounted on the exit of the exchanger(user side) detects the water OO\Vlackby an alarm to the control system.

Inlet water filter: retains impurities of the water circuit which (an damage the pumpingunit and the exchanger.

Expansion vessel: abscrbs liquid VOlUMevariations caused by \'10rking temperaturevariations. In epoxypowder coated steel, long-lasting duration with steadymembranemadein S6R rubber.

Complete Hydraulic kitPump: it gives to the water the pressure head necessary to pass through the hydrauliccircuit and reach the terminals. Tank: made in high-quality carbon steel, insulated withinjected rigid polyurethane with 10\'1thcumal conductivity to minimize dispersions.

Pump kit: it gives to the water the pressure head necessary to pass through the hydrauliccircuit and reach the terminats.

Accessories

Unit performancesreportedin the table are given for the condition of cleanexchanger(fooling factor=O).For different foulingfactors values, unit performances should be corrected with the correction factors shown above.

Fouling Factor Correction

(I) Full soundpressurelevelmeasuredat 10m from tile unit in free Reid()S03744)

Nominal conditions: Air ambient temperature T=3S0C Water temperature T=12/7~C

ReferencesConditions

Cooling Capacity kW ~O,O 45,0 51,0EER 2,81 2,77W compressors / circuits 1/1 2/1 2/1N' capacity steps 1 2 2Compressors type ScrollRefrigerant type R410AN' fans 2 2 2Fansflow rate 18.000 17.200 16.500Flow water 6,87 7,73 8,76Water pressure drop kPa 52 37 36Nominal absorbed power kW 13,1 16,0 18,4Nominal absorbed current A 27 32 35Maximum peak current A 115 120 150Electrical supply V/Hz/Ph 400/50/3+N+PEShipping weight kg 650 720 740Operating weight kg 850 920 940Sound Pressure level (1) dB{A) S2 52 53

Evaporator fouling factors (m 2 "C/W) Fl F2o (Cleanevaporator) I I0.44 x 10~ 0,98 0,99

www,fcostitoly.it 0.88 x 10~ 0,96 0,99

104 1.76x 10~ 0,93 0,98Fl = capadty correction factorsF2 = compressor po\Vef input correction factors

Model

Technical Features

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SIAL

ATMOS

DRACO

TAURUS

VEGA

THOR

AIRCOOLEDWATERCHILLERS

DRACO 55

DRACO40

...Cooling Performances

elEVATION COOLING CAPACITY ELECTRIC POWER[m] CORRECTION FACTOR CORRECTION FACTOR

° 1 1600 0,987 1,0101.200 0973 1,0201.800 0,958 1,0302.400 0,943 1,040

elEVATION CORRECTION FACTORCHILLER AIR TO WATER

Ethylene glycol percent by weight (%)

100

PRESSURE HEAD PUMP GRAPHIC

Mounted Inside the frame permits space saving and easy instaliatlon, provided with:Circulation pump: it gives to the water the pressure head necessary to pass through the hydraulic circuit and reach the terminals.Air bleed valve: it permits to release the air in the plant to obtain optimal thermal exchange.Safety valve: it avoids the working pressure exceeding over the set point.Storage tank: it Serves as thermal flywheel for the plant. Polyurethane insulation minimizes the heat losses.

COMPLETE HYDRAULIC KIT

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SIAL

ATMOS

DRACO

TAURUS

VEGA

THOR

AIRCOOLEDWATERCHILLERS

Flowgrid stands for efficient noise protection features in cooling, ventilation and alr-conditioning technology, This offersa future-oriented solution for the problem of high-pertorrnence technology generating disturbing noise: Flowgrid foraxial and centrifugal fans.The grille on the air-inlet side drastically reduces the noise emissions and minimises disturbing low frequency tones.There are often problems wherever people and technology share space. The movement of air, for example, often goeshand in hand with noise. With Flowgrid, noise-generating disturbances in the fan inflow are a thing of the past.The scale of possible energy savings· or efficiency enhancement and noise reducnon- that can be achieved by fittingan optimal diffuser such as the Axitop on a conventional heat exchanger is substantial. For example, exchanging astandard guard grille fan for an axial fan with support grille, guard grille and Axitop diffuser makes savings of up to 27%possible in energy consumption and at the same time up to 7.2 dBIA) less acoustic cacacitv,

FLOWGRID SYSTEM

Composed by a finned coil with cooper coil and aluminum fins, with servo-controlled 3-way valve. The controllerregulates the valve position by suppling the Free Cooling coil when the climate conditions allow it. The waterconditioning is cooled by the external air decreasing the use of the cooling circuit.The Compressors start to partialize till to stop when the free cooling is active and when the water temperature comingfrom the FCcoil is close to the set point.In this case we got the complete free cooling and the water temperature control comes by means of continuousregulation of the fans rotation speed.In order to optimize spaces, capacity and noise pollution, unit dimensions could be different by the standard model.

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FREECOOLING KIT

Nominal flow rate

Nominal head kPa 140 125Net static pressure pump kPa 88 88 124Absorbed electrical power kW 0,82 0,82 1,12Nominal current A 1,58 1,58 2,17

400/50/3+N+PE200 200 20012 12 18

bar 3 3 3

Model

Technical Features

The technical present data in the technical bulletin are not binding. The FROSTITALY S.p.A.reservesthe faculty ofmakein any moment attthe modifications thought necessaryto the improvement of the product.

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