York 90 Manuale di Servizio

1-6 035B40022-000REFRIGERANT OIL DATASafety Data OilClassification Non-hazardousIn contact with skin Minimally irritating. No first aid necessary. Exe

2 PRODUCT DESCRIPTION2.1 IntroductionThe YCWM/YCRM range of twin refrigerant circuitwater chillers are designed to be located inside theplant room of

2.2 General SpecificationYCWM/YCRM models are completely assembledwith all interconnecting refrigerant piping andwiring ready for field installation.

2.8 Power and ControlsAll controls and motor starting equipmentnecessary for full unit operation are factory wiredand tested. The power and control co

2.10 Nomenclature2-4 035B40022-000YC W M - B 90YORK CHILLERW - WATER COOLEDR-REMOTEAIRCOOLEDPRODUCT TYPEREFRIGERANTBlank = R22B = R407CMODEL(NOMINAL k

3 TRANSPORTATION, HANDLINGAND STORAGEYCWM/YCRM series chillers are supplied fullyassembled.YCWM units are pre-charged with refrigerant andoil in the c

3.3 AnchorageYCWM/YCRM series chillers are provided with18 mm diameter holes in the base frame forretaining the unit if required.3.4 StorageIf the uni

4 INSTALLATION4.1 LocationBefore installing the unit, make surethat the building structure and/ormounting surface can support the unitweight. Overall

Before filling the system, ensure that it isfree from foreign matter, sand, stones,rust flakes, solder, slag or other materialswhich could damage the

4.4 Water ConnectionsThe water inlet and outlet connectionsmust be connected correctly as shown onthe labels fitted next to the fittings.Connect the e

Refrigerant ConnectionsUnits are supplied with a nitrogen holdingcharge.This should be relieved carefully via thesuction service connections and the l

035B40022-000 4-5PEL11L3335102453739L224361125612263840(COMMON)(COMMON)(COMMON)(COOLING)(COOLING)(HEATING)(HEATING)(NO)UNIT TERMINAL BOARD EXTERNAL TE

4-6 035B40022-000PEL11L33351045537413943L2243611466124738424044(COMMON)(COMMON)(COMMON)(COOLING)(HEATING)(HEATING)(COOLING)(NO)UNIT TERMINAL BOARD EXT

5 COMMISSIONINGThe unit must be started by trainedpersonnel from an Authorised YorkService Centre. Failure to satisfy thisrequirement will void the wa

nAfter around 15 minutes of operation, checkthat no air bubbles are visible through the sightglass on the fluid line.If air bubbles are visible, the u

6 OPERATIONYCWM/YCRM series chillers are equipped with anelectronic control and monitoring system asstandard. The system provides control, monitoringa

6.1 Control PanelItem FunctionDisplays operating and faultparameters.SET POINT + key (increasestemperature SET POINT).SET POINT - key (reducestemperat

6.4 Alarm Display and ResetAlarms are indicated by the associated panelLED’s and by messages on the display. Details ofthe alarm codes are given below

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7 MAINTENANCENever release refrigerant to theatmosphere when emptying therefrigerating circuit. Suitable retrievalequipment must be used. If reclaimed

Table of Contents1 SUPPLIER INFORMATION1.1 Introduction 1.11.2 Warranty 1.11.3 Safety 1.11.4 Emergency Stops/Shutdown 1.21.5 About this Manual 1.21.6

7.3 Refrigerant ChargeNever introduce liquid refrigerant in thelow pressure side of circuit. Extreme caremust be taken to ensure that circuit iscorrec

7.7 Thermostatic Expansion ValveYCWM/YCRM refrigerating circuits are providedwith a thermostatic expansion valve with anexternal equaliser. Valves are

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8 TROUBLE SHOOTINGThe following table details possible unit faults, their probable cause and suggested remedies. For anyother problems not immediately

Fault Probable Cause RemedyOne or both compressors notworking.Power circuit interrupted. Check power circuit for earthleakage and shorts. Check fuses.

9 TECHNICAL DATA9.1 Pressure Drop Graphs035B40022-000 9-1Pressure Drop kPaFlow Rate m³/h45678 9 10 15 20 25 30 35 45 514045971015253540452030507510012

9-2 035B40022-000Pressure Drop kPaFlow Rate m³/h45678 9 10 15 20 25 30 35 45 5140561082010040906070305080125150175200225791201509075756060YCWM and YCR

035B40022-000 9-3Pressure Drop kPaFlow Rate m³/h678 9 10 15 20 25 30 35 45 50 55 60 654010111215141325303550454075100125150175200250225275201501209075

9.2 Safety Switch Settings9.3 Operational Limits9-4 035B40022-000YCWM/YCRM60 75 90 120 150 170 200 240 280Low Pressure Switchbar 0,5High Pressure Swit

9.4 Physical Data035B40022-000 9-5YCWM/YCRM60 75 90 120 150Refrigerant Circuits22222Refrigerant chargeR22 kg 2 2,2 3 4 4,5per circuitR407C kg 2,3 2,6

7 MAINTENANCE7.1 General Requirements 7.17.2 Daily Maintenance 7.17.3 Refrigerant Charge 7.27.4 Compressors 7.27.5 Filter Drier 7.27.6 Sight Glass 7.2

9.5 Unit Electrical Data9.6 Compressor Electrical Data9-6 035B40022-000YCWM/YCRMModel6075 90 120 150CurrentNom. Cond.30 35 45 64 76Input (A)Max. Cond.

9.7 Sound Power Levels9.8 Space Requirements035B40022-000 9-7YCWM/Standard Units Units with Acoustic KitYCRMR22R407C R22 R407CModelSoundSound Sound So

9.9 Dimensions9-8 035B40022-000JKKYCRMADNOBCJIIHEFMLLYCWMEV 2EV 1CD 1CD 2HGEFEV 2EV 1GAAAANote:EV = EvaporatorCD = CondenserYCWMEvaporator CondenserMo

035B40022-000 9-9AEDFCBIKKJQQRROGHLMNPOutletetSensorSensorPocketInlet SensorensorPocket4"4"4"4"ACCESS0RYCondenser Manifold KitACCE

9-10 035B40022-000PCABNOIL MKFJR RGHE DTSModelABCDEFGH I JKLMNOPRST170 2200 1600 800 398 1500 618 368 1570 50 60 1237 147 157 500 141 760 3" 1 1/

9.10 Process and Instrumentation Diagrams035B40022-000 9-11YCWM, YCRM, YCWM-B and YCRM-B Models 60 to 150

9-12 035B40022-000YCWM, YCRM, YCWM-B and YCRM-B Models 170 to 280

10 SPARE PARTS10.1 Recommended SparesThe table below lists the recommended spares for one unit for 2 years.10.2 Recommended Compressor OilsThe table b

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11 DE-COMMISSIONING,DISMANTLING AND DISPOSALNever release refrigerant to theatmosphere when emptying therefrigerating circuits. Suitable retrievalequi

1 SUPPLIER INFORMATION1.1 IntroductionYork YCWM/YCRM Series chillers aremanufactured to the most stringent design andconstruction standards to ensure

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Subject to change without noticeALL RIGHTS RESERVEDPart No. 035B40022-000 (04/99)YORKEurope

The unit contains refrigerant vapourand liquid under pressure within theheat exchangers, compressors andpipework. Release of refrigerant canbe a dange

1.6 Safety LabelsThe following labels are fitted to each unit.Refrigerant Identification LabelUnit Identification LabelElectrical Warning LabelCrankca

1.7 Material Safety Data1-4 035B40022-000Refrigerant Data:Safety Data R22, R407CToxicity Low.In contact with skin Liquid splashes or spray may cause f

035B40022-000 1-5Hazardous reactions May react violently with sodium, potassium, barium and other alkali andalkaline earth metals. Incompatible materi