york ycla chiller manual
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york ycla chiller manualIf you continue browsing the site, you agree to the use of cookies on this website. See our User Agreement and Privacy Policy.If you continue browsing the site, you agree to the use of cookies on this website. See our Privacy Policy and User Agreement for details.You can change your ad preferences anytime. Shooting Guide 8.1Trouble Shooting 8.6I-ii 035L02203-100 Rev. 5York YCAJ-Series Air Cooled Liquid Chillers areThe unit is intended for cooling water or glycol solutionsThis manual and the Operating Instructions for the Micro. Based Control System contain all the informationAll procedures detailed in the manuals, includingThe manufacturer will not be liable for any injury orYork International Limited warrants all equipment andThe warranty is limited to free replacement and shippingAll claims mustAll warranty claims must specify the unit model, serialThese details are printed onThe unit warranty will be void if any modification to theYork International. For warranty purposes, the following conditions must beThe initial start of the unit must be carried out by trainedOnly genuine York approved spare parts, oils andAll the scheduled maintenance operations detailed inFailure to satisfy any of these conditions willStandards for Safety. YCAJ-Series Chillers are designed and built within an. EN ISO 9001 accredited design and manufacturingDirectives. Refrigeration equipment built at York Basildon conformsEvery care has been taken in the design andHowever, the individual operating or working on anyPersonal safety, safety of other personnel, and theCorrect utilisation of the machinery in accordance withThe following symbols are used in this document to alertA Warning is given in this document toA Caution identifies a hazard which couldA Note is used to highlight additionalThe contents of this manual include suggested bestThese are issued forThis manual and any other document supplied with theThey may not be reproduced, in whole or in part, withoutSuitability for Application.http://xn--76-6kca8aqc6c.xn--p1ai/pic/userfile/calculadora-hp-15c-manual.xml
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The unit is intended for cooling (and heating) water orThe unit must not be operated outside the designStructural Support. Structural support of the unit must be provided asFailure to provide properMechanical Strength. The unit is not designed to withstand loads or stressesAdditional components must not be mounted on the unit. Any such extraneous loads may cause structural failureGeneral Access. There are a number of areas and features which may bePressure Systems. Each unit has two independent pressure systemsEach system contains refrigerant vapour and liquidNo attempt should beThe unit must be earthed. No installation orNo attempt should be made to gain access to internalsRotating Parts. Fan guards must be fitted at all times and not removedSharp Edges. The finning on the air cooled condenser coils has sharpThe use of gloves isRefrigerants and Oils. Refrigerants and oils used in the unit are generallyUse of gloves and safetyHigh Temperature and Pressure Cleaning. High temperature and pressure cleaning methods (e.g.In case of emergency the control panel is fitted with anA facility is available toThe following labels are fixed to each unit to giveWhite symbol on blueFor safe operation - read the. Instructions first. Black symbol on yellowWarning: This machine mayBlack symbol on yellowWarning: Hot surfaceWarning: Safety relief valveBlack symbol on yellowWarning: Isolate allBlack symbol on yellowGeneral attention symbolRefrigerant Data. Safety Data R22, R407C, R134a. Toxicity Low. In contact with skin Liquid splashes or spray may cause freeze burns. Unlikely to be hazardous byThaw affected areas with water. Remove contaminated clothing carefully - mayWash affected areas with plenty of warmIn contact with eyes Vapour has no effect. Liquid splashes or spray may cause freeze burns. Immediately irrigate with eyewash solution or clean water for at least 10Ingested Highly unlikely to occur -but should this occur freeze burn will occur.http://airportdirectcars.com/userfiles/calculadora-hp-11c-manual.xml Do notInhalation R22 High levels of vapourR407C, R134a High atmosphericVery high exposures may cause anAt higher concentration there is a danger from asphyxiation due to reducedRemove patient to fresh air, keep warm and atApply artificial respiration if breathing hasIn event of cardiac arrest apply externalFurther medical advice Symptomatic and supportive therapy is indicated. Cardiac sensitisation hasLong term exposure R22 A lifetime inhalation study in ratsR407C, R134a A lifetime inhalationThis is notOccupational exposureR22 Recommended limit: 1000 ppmStability R22 Unstable. R407C, R134a Not specified. Conditions to avoid Use in presence of naked flames, red hot surfaces and high moisture levels.Hazardous decompositionR22 Halogen acids formed by thermalR407C, R134a Halogen acids byGeneral precautions Avoid inhalation of high concentrations of vapours. Atmospheric concentrationsThe vapour is heavier than air and collects at lowVentilate by extraction at lowest levels. Respiratory protection Where doubt exists on atmospheric concentration, HSE approved breathingThis should be self contained or of the long breatherStorage Keep containers dry and in a cool place away from fire risk, direct sunlight, andKeep at temperatures not exceeding. Provided it is safe to do so, isolate the source of the leak. Allow small spillagesLarge spillages: Ventilate area. Contain spillages with sand, earth or anyPrevent liquid from entering drains, sewers,Disposal Best to recover and recycle. If this is not possible, destruction is to be in anFire extinguishing data R22 Non-flammable R407C. R134a Non-flammable atContainers Fire exposed containers should be kept cool with water sprays. Containers mayFire fighting protectiveSelf contained breathing apparatus and protective clothing must be worn in fireRefrigerant Oil Data. Safety Data York “C” Oil York “H” Oil. Classification Non-hazardous. In contact with skin Minimally irritating. No first aid necessary.https://strongsib.info/ru/content/bose-gs2-manual Exercise reasonable personalIn contact with eyes As with most foreign materials flushFlush eyes with eyewash solution orIngested Non-toxic. No first aid consideredMay cause nausea and diahorrhea. Obtain immediate medical attention. Inhalation If oil mist is inhaled, remove to fresh air and consult a physician.Not determined. Stability Stable. Stable but hygroscopic -store in sealedConditions to avoid None Specified. Strong oxidisers, caustic or acidHazardous decomposition Oxides of carbon, aldehydes andNot fully. Analogous compoundsBurning fluid. Respiratory protection Use in well ventilated areas. Use in well ventilated areas - ventilateProtective clothing Not necessary but goggles or faceGoggles or face shield should beStop source of spill. Use absorbent materials to soak up fluid (i.e. sand, sawdust, and commerciallyDisposal Incinerate the oil and all associated wastes in an approved facility inSpraying water on hot or burningIf a leak or spill has not ignited use water spray to disperse the vapours and toContainers Fire exposed containers should be kept cool with water sprays. Fire fighting protectiveSelf contained breathing apparatus should be worn in fire conditions.York YCAJ-Series Air Cooled Liquid Chillers areAll models are designed to be located outside on theYCAJ-Series. Chillers are packaged in one or two condenser modules. All models are delivered completely assembled with allPrior to delivery each unit is pressure tested, evacuatedThe unit base and framework are fabricated usingEach unit is fitted with two semi-hermetic, reciprocatingThe motor terminalCompressor Housing. The compressor housing is cast iron. It contains:Code. KeyCondenser - System 1. Compressor - System 1. Compressor - System 2. Control Panel - Power Section - System 1. Control panel - Power Section -System 2. Control Panel - Logic Section. Cooler. Heat Recovery Condenser (Option). Compressor Lubrication. The lubrication is force-fed by a reversible oil pumpCapacity Control.https://danceofcyprus.com/images/brother-p-touch-xl-manual.pdf Capacity control is provided by solenoid-actuatedControl System. This method efficiently and effectivelyCondenser - System 1. Condenser - System 2. Compressor -System 1. Compressor - System 2. Control Panel - Power Section - System 1. Control panel - Power Section - System 2. Control Panel - Logic Section. Cooler. Heat Recovery Condenser - System 1Heat Recovery Condenser - System 2The dual-circuit shell-and-tube cooler is of the directThe water baffles are constructed from galvanised steelThe removable heads allowThe cooler is equipped with heater mats controlled byThe heaters provideCoils. The condenser coils are manufactured from seamlessFans. The condenser fan blades are high efficiency,The fan guards areAll fan blades areThe fan motors are fully enclosed. The motor bearings areTwo complete, independent, refrigerant circuits areAll unit piping isAll controls and motor starting equipment necessary forComponents areAll doors are hinged andControl Panel - Power SectionsControl Panel - Logic Section. A door with a perspex viewing window is located on theControl System keypad and display. The logic controlFor details referControl System supplied with the chiller.A 3-wire kit comprising a control transformer andMains Isolation (Mandatory on CE units). Factory fitted door interlocked isolatorsAvailable with B.S. or D.I.N. fuses. Factory fitted door interlocked isolatorsAvailable with B.S. or D.I.N.Low Ambient Kit. This accessory is factory fitted and includes allHeat Recovery Kit. A high efficiency refrigerant to water condenser can beCondenser Coil - Corrosion Protection. Condenser coils can be supplied with the following finYORK cannot recommend which option is the mostConsulting Engineer based on their experience andAluminium Finning Material. Copper Finning Material. Epoxy pre-coated aluminium finning Material (Black fin). Blygold coated aluminium condenser coilsUnits can be supplied fitted with wire mesh guardsHigh Static Pressure Fans.https://www.a2zmedical.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1628d512524562---carescape-monitor-b650-manual.pdf Factory fitted fans with extra static pressure capabilityAcoustic Kits. Phase I kit comprises factory fitted low noise fans. Phase II kit comprises low noise fans, compressorElectronic Expansion Valve. Electronic expansion valves and controls instead ofMechanical Gauge Kit. Factory fitted mechanical dial gauges for discharge,Microprocessor Contact Isolator Kit. Additional printed circuit board which allows customerEMS Offset Card. Additional printed circuit board which allows alternativeManagement System (EMS) to perform remoteSequence Commander. A Sequence Commander allows control of commonCommander). VBG 20 Compliance Kit. Factory fitted T.Ue.V. approved mechanical highFlange Kits. Units can be supplied with all liquid connections fittedFlow Switch. Switch suitable for up to 10 barg pressure and havingAnti-vibration Mounts. Set of level adjustable spring vibration isolator mountsLifting Lug SetThe lifting lug set comprises four lifting lugs for locatingPrinter. Hand held printer for obtaining print-outs of the unitSystem.Compressor Codes: Evaporator Codes: Condenser Codes: Fan Codes:YC A J 7 5 M T 7 A GSi HR 50 P E. YORK Chiller. Air Cooled. Semi-Hermetic Compressor. Compressor Code (System 1). Compressor Code (System 2). Evaporator Code. Condenser Code. Fan Code. Design Level (Style). Type of Starter. Voltage Code. Heat Recovery (Option). Gold Standard Intelligent. Refrigerant Code:Related DrawingsR134a: 44MR7 - 99ST9 R134a: 98AW9 - 99AW9. Product Standard Units 035L02178-000 035L02180-000. Drawings: Heat Recovery Units 035L02179-000 035L02181-000. Schematic 035L02341-001 035L02344-001. Wiring Connection 035L02342-001 035L02345-001. Diagrams: Customer Wiring 035L02343-001 035L02343-001. Heat Recovery Wiring 035L02348-001 035L02349-001. Legend 035L02110-001 035L02110-001To ensure consistent quality and maximum reliability,YCAJ-Series Chillers areUnits are shipped withoutSales Order.5571818.com/userfiles/files/bowers-and-wilkins-pv1d-manual.pdf If the chiller is to be put into storage, prior to installation,Ensure that all openings, such as water connections,Do not store where exposed to ambient air temperaturesThe finned heat exchangers should be covered toThe unit should be stored in a location where there isTo prevent inadvertent operation of the pressure reliefIt is recommended that the control panel keys areIt is recommended that the unit is periodically inspectedRemove any transit packing and inspect the unit toMajor damage must immediately be reported to yourYCAJ-Series Chillers are designed to be lifted usingA spreader bar or frame 2.4Never move the unit on rollers, or lift the unitCare should be taken to avoid damaging thePrior to moving the chiller ensure that the installation siteSingle Module Units. Four fan units are provided with four square holes in theTwo Module Units. Eight fan units are provided with lifting eyes extendingFor details of weights and weight distribution refer toEach unit is delivered with two shipping brackets onThe brackets are typicallyOpen hooks should not be used. Open hooks should not be usedTo achieve optimum performance and trouble-freeFor dimensions, weight andIt is important to ensure that the minimum serviceThe unit should not be installed directly onOutdoor Installations. YCAJ-Series Chillers can be installed at ground level, orAvoid locations where theThe location should be selected for minimum sunIf located in an area which is accessible to unauthorisedThis will help toFor ground level locations, the unit must be installed on aTo avoid noise andOn rooftop locations, choose a place with adequateStandard units are fitted with multi-blade cooling fansPascal (Pa). Optional low speed fans with a maximumIndoor Installations.http://windcampus.com/wp-content/plugins/formcraft/file-upload/server/content/files/1628d5132398d5---Carenado-seneca-manual.pdf The unit can be installed in an enclosed plant roomThe discharge air fromCommon ducts shouldThe discharge ducting must be properly sized with aThe discharge air duct usually rejects outside theThe outlet must be positionedClearances around the unit(s) are required for theIf clearanceFor locations where significant cross winds areWhen units are installed in an enclosure, the enclosureWhere accumulation of snow is likely, additional heightThe clearance dimensions given areDimension to louvred wall assumes 60Pressure drop through louvred walls must notOn heat recovery units it is advisable to allowWhen ordered, an optional set of four or eight springThis should be done two turns at a time until the topCP-4 MountsGeneral Requirements. The following piping recommendations are intended toThe maximum flow rate and pressure drop forRefer to Section 9 forThe flow switch used must have gold platedAlternatively a differential pressure switch sitedConnection”.Mount Type Nominal Rating Spring colour Deflection atCP-2-27 680 kg Orange 27 mm. CP-2-28 816 kg Green 26 mm. CP-2-31 998 kg Grey 21 mm. CP-2-32 1180 kg White 19 mm. CP-2-35 1361 kg Gold 18 mm. Note: Free height for CP-2-35 mount is 13 mm higher than shown. Mount Type Nominal Rating Spring colour. Deflection atCP-4-28 1633 kg Green 26 mm. CP-4-31 1996 kg Grey 21 mm. Key. A Foundation Bolts. C 6 mm Acoustic Non-Skid Neoprene Pad. D Adjust Height to Ensure Upper Housing. Clears Lower by 6 mm Min. 13 mm Max.The by-pass canHeater tape of 21 watts per metre under theThis will ensure that whenOn heat recovery unitsA suitable interlock should be provided to the hotDuring risk ofAny debris left in the water pipework betweenThe unit performance given in the Design Guide isAerated, brackish or salt water is not recommended forYork recommend that aGlycol Solutions.https://grupomarsamo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1628d5136b0846---caresens-pop-user-manual.pdf For unit operation with chilled liquid temperaturesSection 9, givesWhen using glycol solutions, pressure dropsSpecial care mustThe following are suggested pipework arrangements forFor multiple unit installations,Recommendations of the Building Services. Research Association. Single Heat Recovery CondenserIsolating Valve - Normally Open. Isolating Valve - Normally Closed. Flow Regulating Valve. Flow Measurement Device. Strainer. Pressure Tapping. Flow Switch. Flanged ConnectionTwin Heat Recovery Condensers - Series Flow. For connection sizes relevant to individual chillerCooler Connections. Standard chilled liquid connections on all coolers are ofVic-Adapter flanges, normally supplied loose, or weldVic-Adapter and weld flange dimensions are to ISOStandard Victaulic. Optional FlangesNom. Size PCD T BoltsStandard hot water connections on heat recoveryStandard Threaded. Standard Flange. Optional FlangeCoolers and heat recovery condenser vessels are eachThe pressure relief valveIt is recommended that a piece of pipe is fitted to eachThe size of any pipework attached to a relief valve mustPrecautions should be taken to ensure the exit of reliefNom. Size Thread Type. Nom. Size PCD Bolts. Nom. Size PCD T BoltsGeneral Requirements. The following ductwork recommendations are intendedA flexible joint is alsoFlexible connectors should not be allowed toNo significant amount of weight should be allowedNo more than one metreOn four fan units fitted with an optional “Low. Ambient Operation Kit” two of the fourConnection Details and DimensionsModel and Fan Type A B C. Standard Fans - All Models 924 190 984. Low Noise Fans - All Models 924 190 984. High Pressure Fans -. All Models except. High Pressure Fans - Models. All Dimensions in MillimetersThe following connection recommendations areNo additional controls (relays, etc.) shouldIn addition,After connection do not switch on mainsThis seal must remain in placeBasildon Factory Quality ManagerMinimum allowable voltage 342 V.3dtechgroup.com/uploads/image/files/bowers-and-wilkins-pv1-manual.pdf Maximum allowable voltage 440 V. All electrical wiring should be carried out in accordanceRoute properly sized cablesPanel gland plate as specified below. In accordance with EN 60204 it is the responsibility ofTo ensure that no eddy currents are set up in the metalAll sources of supply to the unit must beStandard Units and Units with Switch. Standard units and units fitted with optional switchAll three supply cables should enter via site drilled glandThe 3 phase supplies can then be routed to theirConnect each of the two main 3 phase supplies to theSection 4-15. Connect earth wires to the main protective earthFor details refer to the. Technical Specification Section (customer control circuitTechnical Specification Section (customer control circuitUnits fitted with the common input supply option requireCE units. Connect the 3 phases to the main customer terminalIf no 3 wire supply option is fitted,Connect an earth wire to the main protective earthControl Transformer Primary Voltage Tappings. The 3-wire control transformer is mounted behind theRemote Emergency Stop Device. If required, a remote emergency stop device can beThe existing link mustAll wiring to the power section volt free contacts requiresThe customer must take particular care deriving theThese circuits when usedIn accordance with EN 60204 it is recommended thatThe YCAJ volt-free contacts are rated at 125 VA. AllChilled Liquid Pump Starter. Terminals 33 and 34 close to start chilled liquid pump.Run Contact. Terminals 35 and 36 close to indicate that a system isAlarm Contacts. Each system has a voltage-free change over contactNo. 2 system.All wiring to the logic section terminal block is nominal 30. Vdc and must be run in screened cable, with the screenRun screened cableThe voltage free contacts must be suitable for 30 VdcIf the voltage freeThe length of cable to these terminals mustThe optional input isolator kit uses 15 Vdc (notFlow Switch. A chilled liquid flow switch of suitable type must beOn heat recoveryRemove link from terminals 11 and 14 (system 1) andRemote Print. Closure of suitable contacts connected to terminals 18Open contacts will causeRemote Set Point Offset. Timed closure of suitable contacts connected toThis function cannot be used if “Remote Unload”Remote Unloading. The Micro Based Control System is capable of remoteThe first step of unloading is achieved by closingControl System Manual. This function cannot be used ifM8 Star DeltaM10 Standard, High Speed FansSYS2 98ST9 M8 Slow SpeedFans M10. M10 Standard, High Pressure Fans M10M10 Standard, High Pressure Fans M10Commissioning of this unit should only beThe Micro Based Control System Manual must beThe unit switch on the front of the control panel hasIf the seal hasQuality Manager otherwise thePreparation - Power Off. The following checks should be made with the customer. Inspection:Inspect unit for installation damage.If found. Refrigerant charge: Units are normally shipped asIf no pressure is present aCharging from the liquid connection on theDo not liquid charge with static water in any of the heatValves: Open the compressor suction and discharge,Only the correctTo prime each compressor - connect a York hand oilStroke the oil pump 10Fans: Check that all fans are free to rotate and are notControl panel: Check panel to see that it is free ofPower connections:Check the customer power cablesRefrigerant. Break vacuum fromRaise system pressureR22 Vapour 4.0 barg (60 psig). R407c Liquid 4.6 barg (70 psig). R134a Vapour 2.0 barg (30 psig). Refrigerant Compressor Oil. R22 York grade C. R407c York grade H. R134a York grade HOverloads: Ensure that the fan overloads settingSupply voltage: Verify that the site voltage supplyControl Transformer: The 3-wire control transformer isIt is important toSwitch Settings: Ensure that the black handled unitFor units fitted withThe customers disconnection devices can now be set toThe unit is fitted with an under voltage relayCrankcase heaters: Verify the compressor crankcaseIf the ambient temperature isC the compressor crankcase heaters must beIf the ambientC then allow 8 hours.Purge air fromOn heat recovery units, verify that the hot water systemInlet should be at thePurge air from the condenser using the plugged air ventFlow rates andNote: pressureFlow switch(es): Verify a chilled water flow switch isTemperature sensor(s): Ensure the leaving waterOUTLET sensor pocket. On heat recovery units alsoControl supply: Verify the control centre display isHP cut-out reset: Check that the hand resetThe controller MUST be setOperating the unit with the wrong refrigerantThe two buttons on the controller are used to check andPress and hold the upperThe upper or lower buttonsTo save the changes press both buttons simultaneously. If both buttons are not pressed the controller will revertPushing the upper button briefly will then display anThe actual suction pressure (u 25) and temperature (uThe suction superheatEEV sensors (if fitted): Check that the electronicSensor S2, located onDescription Parameter Setting Comments on Setting Up Parameters. Main switch r 12 ON Must always be ON, which is main switch on. Thermostat mode r 14 O Must always be O, which is superheat regulated. Amplification factor (Kp) n 04 4 Should be 4 which is the suggested setting for TQ and PHTQ valves,Increased values will give unstable operation, with fluctuating suction pressure. Integration time (Tn) n 05 60 Should be 60 which is the suggested setting for TQ and PHTQ valves,Differentiation time (Td) n 06 OFF Must always be OFF. Max superheat (Max sh) n 09 6 The maximum and minimum superheat settings MUST be the same. M O P n 11 6.5 MOP setting for R-22 and R-407C is 6.5; MOP setting for R-134a is 4.0. Stability n 18 5 Must always be 5. Kp min n 19 0.3 Must always be 0.3. Superheat regulation n 21 2 Must always be 2. Superheat Close n 22 2 Must always be 2. Standby temperature (TQ Kmin) n 26 0 Must always be 0. Standby temperature (TQ Kmin) n 27 20 Must always be 20. Valve and output signal (AO type) o 09 1 Must always be 1. Frequency o 12 50 50 for 50Hz units; 60 for 60Hz units. Transmitter pressure min o 20 0 Must always be 0, with York pressure transducer 025-29583-000, range 0 to 200psi. Transmitter pressure max o 21 13.8 Must always be 13.8, with York pressure transducer 025-29583-000, range 0 to 200psi. WARNING: Wrong refrigerant selection will cause compressor damage. TQ valve actuator temp.TQ valve reference temp.Suction temp u 20 Temperature of suction line sensor. Actual superheat u 21 Suction superheat from pressure and temperature for refrigerant selected. Set superheat u 22 Superheat setpoint. Valve opening u 24 Percentage opening of valve. Suction pressure u 25 Suction pressure from pressure transducer. Suction Saturated temp u 26 Suction saturated temperature from the suction pressure for the refrigerant selected. E 1 Fault in controller. E 11 Valve's actuator temperature outside its range. E 15 Cut-out suction temperature sensor. E 16 Short circuited suction temperature sensor. E 20 The input signal from suction pressure transducer on terminals 14-15A 11 No refrigerant has been selected. Error Messages. Reference Parameters. Control Parameters. Miscellaneous. ServiceProgrammed settings: Ensure the system cut-out andManual and with operational requirements by pressingThe following tables giveAdditional settings for units operating on glycol with aManual).Set-point and Remote offset: Set the required leavingCentre Manual).During the commissioning period there shouldRead the following section in conjunction withInterlocks: Verify that water is flowing through theEnsure that any remoteCentre Manual.Glycol leavingUnit Capacity. StepsTemperature rangeControl System Manual for the normal operatingOil pressure: When a compressor starts, press theSystem Manual for the flow chart of the automatic oilUnder no circumstancesRefrigerant flow: When a compressor starts a flow ofAfter several minutes operation, and providing a fullFan rotation: As the discharge pressure rises theVerify that the fanIf fan operation isGeneral operation: Check the system operatingSuperheat: Check the compressor suction superheatElectronic expansion valve adjustment: The givenThe valve should be allowed toThe superheat setpoint MUST NOT be setThe actual suction temperature, and pressure plus theElectronic expansion valve controller operation. The indicating LED's on the front of the controller light upThe upper LED will indicate theThe three lower LED's will flash ifIn an error situation,Liquid line temperatureIf necessary, add or removeHeat recovery system(s) (if fitted). For each heat recovery condenser system. Thermostat: Set the hot water thermostat to theMode select: Starting the hot water pump will operateNote: at full load on thePressure regulator: Adjust the discharge pressureThe setting can be identified by a distinct gas flow noiseThe thermostat settings given are for a waterSuperheat: Check the compressor suction superheatCheck the superheat, and if necessary adjust the heatRequired Hot. Water Leaving. Hot Water. Thermostat. Compressor Discharge. Pessure RegulatorYCAJ packaged chillers are designed to workWhen operating, the unitThe heat removedThe following sections give an overview of the operationManual for this product.Ensure the mains power to the unit and controls is on,The controller will perform a pre-check to ensure that theIf no problems are present andThe display will show the anti-coincidence timer statusOnce the unit has been started, all operations are fullySEQUENCE’ will be displayed for the lag compressor,If very little heat load is present, however, the leadWhen a compressor is running, discharge pressureAs soon as a compressor is running the controllerShould any problems occur theControl System Manual for full details).York PC Semi-Hermetic Compressors are each capableRemaining cylinders are unloaded in pairs by energisingEach refrigerant system has an independent air cooledControl is independent of compressor load status withOn units fitted with heatFor pressure setting values ofWhere fitted, heat recovery condenser(s) allow heatThe unit can be stopped at any time by switching the unitNow customize the name of a clipboard to store your clips.