Air Cooled Packaged Chillers - Alkashifac
R-134aAPCN-S SeriesAir Cooled Packaged ChillersRange 50 TR to 435 TR(176 kW to 1529 /marketingskmSharjah Economic ExcellenceAward winner
SKM Air Cooled Packaged ChillersAPCN-S Series - R-134aContentsIntroduction .2Legend. 2Nomenclature .2General Features .3Main Component Features .3Microprocessor Control .4Optional Features .7Engineering Specifications .8Capacity Ratings .12Capacity Correction &Limits .20Evaporator Water Pressure Drop .21Selection Procedure .23Electrical Data .24Typical Wiring Diagram .27Dimensional Data .28Loading points .38Location And Space Requirements .40Water Piping Practices .41Guide Specifications .44Supplementary Models:Engineering Specifications .47Electrical Data .48Dimensional Data .49Loading points .50LegendThe following legends are used throughout this manual:cfm. Cubic feet per minuteEER. Energy Efficiency RatioHz. HertzkW. Kilowattskg. Kilogramlbs. Poundsl/s. Liters per secondMBH. Btu/hr x 1000Ph. PhasePI. Power Input of CompressorTR. Tons of RefrigerationV. VoltsIntroductionThe new SKM APCN-S Series environmentfriendly (R-134a) Air Cooled Screw Chillersare the latest innovation of SKM, designed andmanufactured to provide utmost performance,efficiency, reliability, to meet the requirementsand long life from Gulf’s severe climaticcondition.APCN-S Series Chillers have low noiseand minimum vibration ideal for vast rangeof applications including hotels, high-risebuildings, stores, hospitals, and moderncooling applications of modern manufacturingindustries.APCN-S units are factory assembled, leaktested, evacuated, internally wired and fullycharged with refrigerant R-134a. Every unitis fully tested before delivery and is ready forinstallation.APCN-S Series Chillers are designedand manufactured as per SKM Quality &Environmental manual ISO 9001:2015, ISO14001:2015, and OHSAS 18001:2007 .NomenclatureAPC N-5100S YAir CooledPackaged ChillersPower Supply CodeN-versionScrew Compressor, R-134aPower SupplyFrequency5 : 50 Hz6 : 60 HzUnit SizeS-Standard EfficiencyY : 380V/3Ph/50HzY1: 415V/3Ph/50HzP : 440V/3Ph/50Hz *R : 380V/3Ph/60Hz *E : 460V/3Ph/60HzT : 220V/3Ph/60Hz ** Consult SKM for AvailabilitySKM reserves the right to change, in part or in wholethe specifications of its Air Conditioning Equipmentat any time in order to add the latest technology.Therefore, the enclosed information may changewithout any prior notice.2SKM Air Conditioning LLCYou name it.We cool it
SKM Air Cooled Packaged ChillersAPCN-S Series - R-134aGeneral FeaturesHigh COPAPCN-S Series chillers provide tremendous savings in operatingcosts by using high efficiency, semi hermetic screw compressor.High COP is made possible due to perfect screw profile andprecise machining. The stepless capacity control provides precisecapacity as required by the system load, and thus giving higherpart load efficiencies. The compressor can be loaded from 25to 100% of capacity depending upon the requirement throughstate of the art microprocessor control which precisely monitorsthe water temperature and accurately modulates the compressoraccordingly.Maintenance Free OperationAPCN-S Series chillers have compact design and are supplied asa complete package, ready to be wired and piped for operation.Screw compressors in SKM APCN-S Series provide virtuallymaintenance free operation as there are fewer moving parts.Special bearings facilitate longer run periods of compressorwithout any need for maintenance.Wide Operating RangeAPCN-S chillers are designed, as standard, to operate at a widerange of ambient temperatures from 25oF (-4oC) to 127.4oF (53oC).Main Component FeaturesCompressorsAPCN-S Series Chillers use high performance and high efficiencyscrew compressors which are double walled and robust inconstruction and have very few moving parts. The lubricationcircuit is designed as is typical for the screw compressor in whichoil is separated by a three stage oil separator and a long life fi lter(10 μm mesh size) is used. Oil sight glass, oil fill / drain servicevalve, insertion type oil heater with sleeve, discharge shut - offvalve and suction gas filter are availabe as standard.Additional features are as follows : Bearings are generously dimensioned to provide long lifeoperation. Main elements are the roller bearings for theradial forces combined with robust axial bearings arrangedin tandem configuration.Infinite capacity control and automatic start unloading areprovided as standard.The compressor is protected by different devices and systems.Protection devices include check valve in the discharge gasoutlet and differential pressure relief valve. The protectionsystem includes motor internal thermal protection, phasesequence protection for direction of rotation, oil temperatureprotection and manual reset button.CondensersCondenser coils are manufactured from seamless Hi-x coppertubes mechanically bonded to aluminium fins to ensure optimumheat transfer. All coils are tested against leakage by air pressureof 450 psig (3102 kPa) under water. All standard coils are 3rows ,16 FPI (1.59 mm fin spacing) ,3/8” (9.5mm) O.D. tubes.Condenser fin materials should be matched with site conditionsto inhibit coil corrosion and ensure extended equipment life.For different application requirements, other optional condenserfin materials are available: Copper finsCopper fins electro-tinned after manufacturingPrecoated Aluminum finsThe pre-coated is hydrophobic polyurethane resin. This optionprovides substantial corrosion protection beyond standardcoil construction.Aeris Guard Coil CoatingThe Aeris Guard Coil is a self etching high performancemodified epoxy finish that is specifically designed to coatand protect Aluminum and Copper surfaces. In addition, thecoating is ideal for the protection of ferrous and non ferrousmaterials.Condenser FansThe condenser fans are propeller type, aluminium alloy blades,directly driven by electric motors. Motors are Totally EnclosedAir Over (TEAO) six pole with class ‘F’ insulation and IP55protection. The TEAO and class ‘F’ insulation features ensurelong life and are unique to SKM.The motors are factory wired to chiller unit control panel wherethe motor starters are located to control the operation of thesemotors. The fans are individually statically and dynamicallybalanced at the factory. Complete fan assembly is provided withsuitable acrylic coated fan guard.EvaporatorAPCN-S evaporators are direct expansion, shell and tube,having 1, 2,3 or 4 refrigerant circuits. Evaporator shell is madeof steel. Tubes of copper fixed to steel end plates. Baffles areprovided in the water flow to increase heat transfer efficiency.Evaporators are provided with drain and vent plugs. Cooler shellis insulated with 1.0” (25mm) thick flexible closed cell insulation,K factor 0.28 Btu. in/ft².h.oF (0.04W/m.oK). Maximum workingpressure of waterside is 145 psig (1000 kPa) and refrigerantside is 239.3 psig (1650 kPa).Electronic Expansion ValveAPCN-S series chillers use electronic expansion valve forprecise control refrigerant mass flow. Our electronic expansionvalve improves EER (Energy Efficiency Ratio) at full & part-loadconditions. Also it improves temperature control & increases therange of operating conditions.3
SKM Air Cooled Packaged ChillersAPCN-S Series - R-134atransformer.Casing/Structure FrameThe unit casing in APCN-S series chillers is made of zinccoated galvanized steel sheets conforming to JIS-G 3302and ASTM A 653 which is phosphatized and baked after anelectrostatic powder coat of approximately 60 microns. This finishand coating can pass a 1000 hour in 5% salt spray testing at95 F (35 C) and 95% RH as per ASTM B117.APCN-S chillers are assembled on rigid structural steel skidchannels painted with one coat galvanized primer and one coatblack enamel. The package is assembled for easy handlingduring transportation and robust support during installationand operation.Refrigerant Piping Control Relays and control circuit fuses. Control circuit on/off switch and pump down switches. Indication light for common fault. Volt free contacts for run, common fault and auto modeindications. Provision for accepting volt free contact for remote start/stop. Control terminal blocks and power terminal blocks/bus bars.Microprocessor ControllerThe refrigeration circuit piping is fabricated from ACR gradecopper piping. Each refrigeration circuit includes filter drier,electronic expansion valve, and shut off valve. The refrigerationcircuit suction line is insulated with ½” (13mm) wall thicknessclosed cell pipe insulation.EconomizerAll refrigeration circuits are equipped with an economizer circuit.Economizer operation improves both cooling capacity andefficiency by increasing sub cooling of liquid refrigerant fromthe condenser. The components of an economiser cycle includethermostatic expansion valve, plate type heat exchanger, solenoidvalve & ECO muffler kit.Control PanelThe unit mounted chiller control panel enclosure is fabricatedout of heavy gauge sheet steel in phosphatized powder coatedbaked finish. The enclosure conforms to IP54 as per guidelinesin IEC 529. A hinged access door and key-fastener is providedfor easy access and security. The panel is factory wired inaccordance with NEC 430 & 440, labeled, tagged and features220V / 240V controls. All compressors are with part winding start as standard. Individual compressor and condenser fan motor contactors. Thermal magnetic circuit breakers for compressors andcondenser fan motors. Voltage monitoring module for protection against undervoltage, over voltage, phase loss, phase reversal and phaseunbalance of the incoming voltage. Circuit breaker for control circuit. Remote/Off/Local selector switch. Microprocessor master board with graphical display. Microprocessor expansion boards as required. Electronic expansion valve control boards with 24V4Microprocessor control system is available for APCN-S serieschiller as a standard feature. Our high energy efficient chiller hasa full function microprocessor control unit designed to keep thechiller running at its most energy efficient level. It is a ruggedmicroprocessor based controller that is designed for the hostileenvironment of HVAC industry.It provides flexibility with set points and control options that canbe selected prior to commissioning a system or when the unit islive and functioning. Displays, alarms and other interfaces areaccomplished in a clear and simple language that informs theuser as to the status of the system. It is designed to safeguardthe system that is being controlled, eliminate the need formanual intervention and to provide a simple but meaningfulman-machine-interface.
SKM Air Cooled Packaged ChillersAPCN-S Series - R-134aThis controller provides complete operational control for thechiller and has built-in auto diagnostic capability that can signalnormal operation or alarm conditions as well as shutting downthe chiller or system, if necessary.The Main Features of the controller are as follows: A large graphical LCD Display (2.8 diagonal) with back-litthat can be seen in bright or dim lighting. A nine button generic keypad that is so user friendly, itrarely requires a reference manual. Battery backed up built in real time clock to programthe chiller for 2 starts and 2 stops daily to provide theinformation about the running hours of the compressors. Multiple authorization levels to provide tight security of thecontrol system. Two operating schedules per each day of the week and 8holidays. The system provides ‘last time’ enabled & disabled, numberof cycles, and total run hours. Automatic Lead/Lag changeover of the compressors. Pump-down at the beginning and end of every circuit cycle. Capacity control based on leaving chilled water temperature.A special control zone based on leaving water temperaturethat reduces compressor cycling, and improved unit partload efficiency. Start/stop facility from remote through Volt Free Contact(VFC). Common Run, Fault and remote mode operation status voltfree contacts provided for remote signalingDisplay InformationSKM APCN-S chillers offer a graphics LCD display which allowsthe operator to access different parameters of the chiller. Operatorcan view and change the set point of chiller parameters. Thegraphical display has lot of features, trending is one of the keyfeatures of graphical display, which shows last 25 samples withan appropriate scale to allow it to fit on the display.The well designed keypad with three function keys, four directionkeys and two selection keys allows the operator to navigatethrough different Menu, such as: Status Outputs Inputs Alarms Graphs Setpoint Service toolsLockout Reset Lockout Alarm PasswordSystem Control PhilosophyThe unit may be enabled or disabled manually or through theuse of an external signal from a building automation system.Control is based upon leaving chilled water temperature. How fastthe temperature changes is calculated and capacity decisionsare based upon the rate, the current temperature, and the controltemperature zone. Capacity is never added if the system ismoving toward the temperature target at an acceptable rate. Theunit will monitor all control functions and stage the compressorto maintain the required operating capacity.Easy Accessible Measurements Include: Status of the chiller.Status of each circuit/compressor.Status of condenser fans.Leaving and Entering chilled water temperature.Suction pressure and temperature for each refrigerantcircuit.Discharge pressure and temperature for each refrigerantcircuit.Suction and discharge superheat for each refrigerant circuit.Ampere draw for each compressor.Expansion valve opening percentage.Ambient temperature.All active set points.Run time for each compressor.Number of compressor starts.Lockout and alarm status.Status of water flow switch, voltage monitor, compressorinternal motor protector, oil level switch, run/stop input andpump down switches.Log of last 100 alarms.Lead compressor identification.Date and time.Graphs of all inputs and outputs.System ProtectionThe following system protection controls will automatically actto insure system reliability and protection of the unit. Low suction pressure protection.High discharge pressure protection.High discharge temperature protection.Low discharge pressure protection.Low superheat protection.High compressor ampere protection.Compressor internal thermal protection.Freeze protection.Under voltage, over voltage, phase loss, phase reversaland phase unbalance protection.Chilled water flow loss protection.Sensor error protection.Pump down.Anti-recycle.Time delay between stages.4-Levels of passwords to restrict the intentional mishandling.5
SKM Air Cooled Packaged ChillersAPCN-S Series - R-134aOptional Features available for the MicroControllerPC Support SoftwarePC software to communicate with APCN-S microprocessor isavailable as an optional feature. Software is named MCS-Connectand it can provide both local and remote communications to thechiller microprocessor. This program allows viewing the entirestatus of chiller, inputs, outputs, set points, alarms, graphs etc.Through proper authorization, changes can be made to the system.Configuration files can be transmitted to or received from the unit.Communication between PC and chiller microprocessor can bemade through RS-232 serial port or Ethernet port.If there is more than one chiller, these chillers can be connectedtogether via Rs-485 network which can support up to 20 chillers.Access to this network can be local, via RS 232 or Ethernetconnection, or remote via 14.4K Baud modem. Each chiller in thenetwork must be assigned to a unique address. This address canbe changed from the LCD/keypad of the unit or through MCSConnect software. RS 232 transmission should not exceed 50feet in length and RS 485 transmission should not exceed 1 milewithout repeater. For Ethernet communication, it is necessary touse a crossover cable when connected directly to a PC.This software can run with Windows 2000 or newer version.BMS CommunicationBMS communication with the chiller microprocessor is possiblethrough hardwired signals or major BMS protocols.BMS protocolsThe chiller controller is capable to interface with four major buildingmanagement systems, which are BACnet, Modbus, Lonworks andJohnson N2, by adding optional hardware. This interface allows tomonitor the status of chiller and individual circuits, all inputs andoutputs, chilled water set point etc. The required BMS protocoland number of chillers needs to be specified during the time oforder as costing of the BMS interface involves these parameters.Factory Installed OptionsAlternative Condenser MaterialMade of copper tubes and alternative fin material and/orprotective coats. For Pre Coated aluminum fins, specify (FAP).For Aluminum Fins with Aeris Coat Protection, specify (FAA).For Copper Fins, specify (FC).For Copper Fins with Aeris Coat Protection, specify (FCA).For Copper Fins only electrotinned, specify (CFT)Galvanized Frame(GFB)Hot dip galvanized after manufacture, steel frame and base.IP55 Control Panel Enclosure(ICP)Control Panel for special applications to meet IP55 requirements.Evaporator Casing(ECA/ECG/ECS)Shell and insulation casing enclosed in a jacket/casing ofaluminium, galvanized or stainless steel as required, injectedwith polyurethane foam. 1.5” (38mm) insulation thickness.Hard wired signalsVolt free contacts for Run, Common fault and Auto modeindications and provision for remote start/stop are provided asstandard feature. In addition to these, below options can beprovided if specified. Condenser Coil GuardEmergency Stop – A volt free contact from BMS to chiller,which is normally closed and opens on an emergency shutdown condition. It will make the chiller to shut down immed-iately bypassing normal shut down procedure.Main IsolatorChilled water reset – A 0-5VDC signal from BMS to chiller,which allows resetting chilled water set point around anacceptable range.Voltage Monitoring Module as per DEWA(ISO)For main power isolation. (consult SKM)(DVM)Under voltage relay as per DEWA regulations. This option isavailable for Dubai, UAE only.6(CGP)Galvanized wire mesh guard with painted finish for condensercoils. Recommended on ground level installations where coilneeds to be protected against vandalism.
SKM Air Cooled Packaged ChillersAPCN-S Series - R-134aEvaporator Freeze Up Protection(EFP)Heating cable with thermostat to prevent evaporatorSuction Shut off Valve(SSOV)Screw compressors are with suction shut off valves to isolate thefreeze-up where low ambient temperatures below 32oF (0oC)compressor from the evaporator, this may be beneficial whenare anticipated with/out chiller operation.servicing the chiller.Star/Delta Starter For Compressors(SDS)To reduce starting current of compressors by reduced voltagestarting. Compressors will be started in star and after few secondsUL 1995(UL-LISTED)Unit construction are certified and in compliance of UL 1995safety standards. Consult SKM for availability of selected models .it will be changed over to delta.Ammeter & Phase Selector Switch(AMPC)To indicate running AMPS of each compressor.Ammeter & Phase Selector switch(AMPI)Options for Field InstallationChilled Water Flow Switch(CWFS)Anti-vibration mounts, spring type(CAVM)To indicate running AMPS on main incomer of a chiller.Voltmeter & Selector Switch(VSS)For incoming line voltage.Pressure Gauges(SDG)Suction & discharge pressure indication of each refrigerant circuit.Low Noise Fan & Motor(LNF)Low noise Fan & Motor assembly can be provided forapplications where minimal unit sound is required.Pressure Relief ValveTo protect the chiller unit from being over-pressurized.Marine Paint(PRV)(MP)To provide increased corrosion resistant in coastal environmentsand off-shore locations.Compressor Sound Enclosure(CSE)To reduce compressor sound, compressor sound enclosure withinsulated panels is mounted around the compressor.ASME Stamped Evaporator(STE)Shell and Tube evaporator with ASME stamp.7
SKM Air Cooled Packaged ChillersAPCN-S Series - R-134aAPCN5050 S5060 fmFaceAreaRate(Total)AirFlowm²l/sCondenser Fan MotorQuantitykW#x #Sizex QuantitycfmEvaporatorAir Flow itskWGalx#Size x QuantityUSWater VolumeEvaporatorLitre#QuantitylbsRefrigerant Charge (R134a)#gRefrigerant CircuitskgUS GalWater VolumeLitrelbsRefrigerant Charge 806.9720141183.34.07.7515483.3437687.75206541.54x 44268020141111.522.5x 485.0171.51332.422.585.071.5332.41.54x 44376820654111.523.2x 488.0180.313636.423.288.080.33636.4Model5070 S5080 S5090 S5100 mi Hermetic, 4.093.0/ 4.0232.0263.6292.8327.022191915/ 15Semi Hermetic,Screwcopper tubes Aluminum finsAir Cooled 3 rows, 16 fpi (1.59mm)fin spacing,1112100.0153.3153.3173.35.85.05.04.016.11/ 4.09.3014.2514.252219 Direct Drive 96019rpm15 / 15PropellerAir Cooledfin spacing, coppertubes Aluminum6 3 rows, 16 fpi (1.59mm)666 .2514.2516.1129231322163221632816DirectDrive 9606rpmTotally enclosed airPropellerover, ClassF insulation,pole, IP - 55 protected1.56x 61.56x 61.56x 61.56x 661944682686826869540DirectExpansion Shell andTube292313221632216328161111Totally1 enclosed air over,1 Class F insulation, 16 pole, IP - 55 protected21.51.51.5x61.5x623.2x 633.8x 633.830.9DirectExpansion Shell 61601 9661.6661.602 0.850 HzTR SPECIFICATIONS50.657.8Cooling Capacity (1)kW177.9203.4249.1(Standard Efficiency)TR46.753.266.0Cooling Capacity (2)ModelCompressorCooling Capacity (1)QtyOilCharge(BSE170)CoolingCapacity(2)Ckt (A / B / C / D)CompressorCoilCondenserQtyFace Area (Total)Oil Charge (BSE170)Ckt (A / B Fan/ C / D)CondenserCondenserQuantity Coil5115 S111.9393.6104.05115365.7S111.9393.62104.04.0/ 4.0365.715/ 155130 S130.7459.6120.95130425.3S130.7459.62120.95.8/ 4.0425.322/ 152208.04.019.33/ 4.015 / 158208.09128019.33430752240.05.822.31/ 4.022 / 158240.09318422.31439741.58x 76.78080.21.58x 96.48989.1APCN5245 S5255 S5270 S5285 S5300 S5310 S5320 S5325 STR243.8253.3265.8282.4297.9307.9315.6320.8Cooling Capacity R225.5234.2246.6261.2275.3284.8292.4296.9Cooling Capacity emi Hermetic, ScrewCooling Capacity 0/5.85.0/5.0/ 5.0 / 5.0OilChargeCooling Capacity (2)kW968.3LitreCkt (A / B / C / D)19 793.3/ 19 / 1919 823.6/ 19 / 1919 867.2/ 19 / 1919 918.6/ 19 / 1919 / 22/ 22 / 2219 / 1001.819 / 22 / 2219 / 1028.319 / 19 / 2219 / 1044.319 / 19 / 19CompressorCoilSemi Hermetic,Screwcopper tubes Aluminum finsCondenserAir Cooled 3 rows, 16 fpi (1.59mm)fin 96.0512.0512.0Face Area (Total)USm²Gal 5.0 38.05/ 5.0 / 5.05.0 38.05/ 5.0 / 5.05.0 /42.765.0 / 5.05.0 /42.765.0 / 5.05.0 / 5.846.10/ 5.8 / 5.8 5.0 / 5.046.10/ 5.8 / 5.8 5.0 / 5.047.59/ 5.0 / 5.8 5.0 / 5.047.59/ 5.0 / 5.0Oil Charge (BSE170)LitreCkt (A / B Fan/ C / D)19 / 19 / 1919 / 19 / 1919 / 19 / 1919Propeller/ 19 / 19Direct Drive19 / 96022 / rpm22 / 2219 / 19 / 22 / 2219 / 19 / 19 / 2219 / 19 / 19 / 19CondenserCondenserAir Cooledfin spacing, 18copper tubes Aluminum#161618 3 rows, 16 fpi (1.59mm)1818 fins2020Quantity aceArea(Total)Air Flow ive 9606rpmCondenser Fan MotorTotally enclosed airPropellerover, ClassF insulation,pole, IP - 55 protectedQuantitykW#x #1.516x 161.516x 161.518x 181.518x 181.518x 181.518x 181.520x 201.520x 20x Air Flow 11111111QuantityCondenserMotorTotally#333 enclosed air over,3 Class F insulation, 46 pole, IP - 55 protected444RefrigerantFanCircuitskWGalx#1.597.7x 161.597.7x 161.5x 181.5x 181.5x 181.5115.5x 181.5115.5x 201.5115.5x 20Size x QuantityUS114.5114.5115.5Water VolumeEvaporatorDirectExpansion Shell .8443.6452.3Refrigerant Charge (R134a)#33334444Refrigerant US Gal97.797.7114.5114.5115.5115.5115.5115.5Table 1Water 2Notes :lbs based357.1357.1AHRI - 550399.0399.0 of 95 F417.1425.8 44 F (6.7 C)443.6 leaving452.31).RefrigerantCapacityratings areon standard/ 590 conditions(35 C) ambient,chilled waterCharge (R134a)181.0 (0.018181.0189.2201.2205.1temperature, 10 Fkg (5.5 C)161.9range and 161.90.0001 ft².h F/Btum². C/kW) foulingfactor.193.1Model2). Capacity ratings are based on 115 F (46 C) ambient, 45 F (7.2 C) leaving chilled water temperature, 10 F (5.5 C) range and0.0001 ft².h F/Btu (0.018 m². C/kW) fouling factor.3). For availability of models at 440V/3/50Hz & 220/3/60Hz, please consult SKM.8
SKM Air Cooled Packaged ChillersAPCN-S Series - R-134aAPCN5145 S5155 S5160 S5175 ²cfmm²l/s-kW#x #cfml/s##kWGalx#USLitre#lbs#kgUS GalLitrelbskg135.35145476.1S145.9513.22135.35.8/ 5.8476.122/ 22142.95155502.8S153.5539.92142.95.0/ 5.8502.819/ 22147.55160518.7S158.7558.22147.55.0/ 5.0518.719/ 19163.35175574.5S176.2619.62163.35.0/ 5.0574.519/ 192240.05.8/ 5.822.3122 / 222256.05.0/ 5.823.8019 / 222256.05.0/ 5.023.8019 / 6.011382023.80537121.58x 8931844397411.510x 101138205371211.510x 101138205371215185 SENGINEERINGSPECIFICATIONSzTR145.9153.5158.7176.2 - 50 H185.7kW513.2 324.01209.0294.885.6324.0209.094.821.585.6x 10324.01226.82102.985.6324.0226.8102.921.585.6x 10324.01235.52106.885.6324.0235.5106.85200 S201.1707.3185.75200653.1S201.1707.335.8 /185.75.8 / 4.022 653.1/ 22 / 155220 S217.6765.5200.15220703.7S217.6765.535.8 /200.15.8 / 5.822 703.7/ 22 / 22172.15185605.5S185.7 ScrewSemi Hermetic,653.22172.15.0/ 5.0605.519/ 19Semi Hermetic,Screwcopper tubes Aluminum finsAir Cooled 3 rows, 16 fpi (1.59mm)fin 5.8/4.05.8/5.828.5028.5031.9833.46/ 5.819 / 19 Propeller Direct19 / 1922 / 22 / 22Drive 960 rpm 22 / 22 / 15Air Cooled 3 rows,12 16 fpi (1.59mm) fin12spacing, copper tubes12 Aluminum fins 028.5031.9833.4664431644316556465960DirectDrive 9606rpmTotally enclosed airPropellerover, ClassF insulation,pole, IP - 55 protected1.512x 121.512x 121.512x 121.512x 12136536 Direct Expansion136536138936139776Shell and Tube644316443165564659601111Totally enclosed2 air over, Class F 2insulation, 6 pole, IP -355 protected31.584.8x 121.584.8x 121.575.8x 121.575.8x 3.4123.6123.6128.7133.05230 S225.9794.5208.45230732.9S225.9794.535.0 /208.45.8 / 5.819 732.9/ 22 / 225235 S233.9822.8215.95235759.5S233.9822.835.0 /215.95.0 / 5.819 759.5/ 19 / 223393.35.0 36.56/ 5.8 / 5.819 / 22 / 223376.05.0 34.95/ 5.0 / 5.819 / 19 / 514x 141616167626711.514x 1416055275764131.5x 14100.6380.81327.23148.4100.6380.8327.2148.431.5x 35 S5345 S5350 S5365 S5375 S5385 S5400 S5410 S5425 346.5STR333.2342.3349.3362.0371.5 Screw384.8397.7410.2422.3Semi 354.6364.4373.8382.8USTRGal 5.0 / 5.0/ 5.0 / 5.0 5.0 / 5.0/ 5.0 / 5.0 5.0 / 5.0/ 5.0 / 5.0 5.0 / 5.0/ 5.0 / 5.0 7.9 / 5.0/ 5.0 / 5.0 7.9 / 7.9/ 5.0 / 5.0 7.9 / 7.9/ 7.9 / 5.0 7.9 / 7.9/ 7.9 / 7.9/ 5.0 / 5.0 5.0 / 5.0kW1087.41116.61135.61180.11210.9Litre19 / 19/ 19 / 1919 / 19/ 19 / 1919 / 19/ 19 / 1919 / 19/ 19 / 1930 / 1247.119 / 19 / 1930 / 1281.730 / 19 / 1930 / 1314.830 / 30 / 1930 / 1346.530 / 30 / 3019 / 19/ 19 / 19Semi Hermetic,Screwcopper tubes Aluminum finsAir Cooled 3 rows, 16 fpi (1.59mm)fin spacing,#444444444ft²562.7562.756
SKM Air Cooled Packaged Chillers APCN-S Series - R-134a SKM Air Cooled Packaged Chillers APCN-S Series - R-134a Condensers Condenser coils are manufactured from seamless Hi-x copper tubes mechanically bonded to aluminium fins to ensure optimum heat transfer. All coils are tested against leakage by air pressure of 450 psig (3102 kPa) under water.
cause water-cooled chillers can take advantage of lower condensing temperatures than air-cooled chillers. Air-cooled chillers have a full load kW/ton of approxi-mately 1.25 while water-cooled chillers have a full load kW/ton of between 0.55 and 0.8 kW/ton. The kW draw of the cooling tower fans and con-denser water pump should be
Air Cooled Packaged Chillers A P C X - 5 1 0 0 Y Nominal Tonnage Power Supply Code Y : 380-415V/3Ph/50Hz P : 440V/3Ph/50Hz R : 380V/3Ph/60Hz E : 460V/3Ph/60Hz T : 220V/3Ph/60Hz Nomenclature Introduction APCX Series Air Cooled Packaged Chillers are the new generation of SKM chillers. APCX Series have quite and low vibration design and
Air Cooled Chiller Air Air 2 Air Air 6 AIR COOLED CHILLERS Air-cooled chillers are refrigeration machines that remove heat from cooling loads using chilled water and reject this heat into the atmosphere using refrigerant. THEY ALL HAVE fans, condenser coils, and compressors. Air-cooled chillers are used to provide cooling for human comfort and electronic equipment as well as industrial process .
Standard COOLER Air Cooled Packaged Liquid Chillers have the following characteristics: CAPC Models: from 30 up to 502 Ton (from 87,000 up to 1,500,000 Kcal) All Units can be custom tailored on request The COOLER Air Cooled Packaged Liquid Chillers is a packaged unit completely factory assembled on a stiff steel structure with
Maximum Series portable chillers can be used on a variety of process applications that require 20 F to 80 F chilled water. MAXIMUM SERIES † Air & Water-Cooled † 1/4 to 40 Tons † 20 F to 80 F † Using Non-Ozone Depleting Refrigerants 10 ton air-cooled model 10 ton water-cooled model 2 ton water-cooled model 1 ton air-cooled model
8 to 12 F for water-cooled chillers and 10 to 15 F for air-cooled chillers. ENSURE PROPER SUPERHEAT For air-cooled chillers, make sure fans work properly and coils are clean on the condenser side of the system. For water-cooled chillers, ensure that all flow rates and pressure drops on th
AIR-COOLED Air-Cooled chillers utilize plant ambient air to extract heat from the refrigeration circuit. Fan or blowers move the plant air across generously sized finned condenser coils to permit full rated capacity at design conditions. WATER-COOLED Water-Cooled chillers utilize a secondary plant water source such as cooling tower or city .
A01 , A02 or A03 Verification of prior exempUcivil after exempt service must be on file with the X appointment (when appointing power. there is no break in service). A01 , A02 or A03 (to Copy of employee's retirement PM PPM X a permanent release letter from PERS must be 311.5, 360.3 appointment) after a on file with the appointing power.
