Carrier 17EX specifications Flange Nut Tightening Torques Low Speed Couplings Only

Page 60

2.Offset and Angular Alignment Ð Reverse dial indication or optical methods of alignment (such as lasers) are rec- ommended. A cold alignment and a hot check (with cor- rections, if necessary) are required. The hub ¯ange OD can be used to mount the alignment equipment and is ma- chined to be concentric to the coupling bore. It can be used as the reference diameter.

3.Final Assembly Ð The terminology used to identify parts and the order of assembly may differ from one coupling style to another. Follow the instructions that apply to the coupling you are installing.

High Speed Coupling (Spacer Style):

e.Place the disc pack nuts on the bolts. Tighten all nuts evenly and in an alternating fashion to the torque speci- ®ed in Table 9.

Low Speed Coupling (Close-Coupled Style):

a.Place the disc pack and adapter in position over the hub body diameter. The reamed holes in the adapter should be aligned with the large clearance holes in the hub as in the upper portion of Fig. 30. The large clear- ance holes in the adapter should be aligned with the reamed holes in the hub as shown in the lower portion of Fig. 30.

a.Place the spacer in position between the hub ¯anges. Place the disc packs between the ¯anges on both ends of the coupling.

b.Insert the disc pack bolt into the reamed hole of the hub and through the disc pack bushing. See Fig. 29 (compressor side). The ¯at of the bolt head acts as a bolt lock with the hub body. Make sure the spacer is properly indexed for the large ¯ange holes to receive the bolt ends. Tap the bolts lightly for full engagement until the heads rest on the hub ¯ange surface. Repeat for the other bolts.

c.Place the spacing washers and disc pack nuts on the bolts. Tighten all nuts evenly and in an alternating fash- ion to the torque speci®ed in Table 9.

d.Place a spacing washer over a disc pack bolt. Insert the bolt through the large hub ¯ange hole and the disc pack bushing. See Fig. 29 (gear side). Tap the bolts lightly for full engagement. Repeat for the other bolts.

DISK ADAPTERS

PACK

DISC

PACK

BOLT

HUB

MOTOR

SIDE

SPACING

WASHER

DISC

PACK

NUT

GEAR

SIDE

SHAFT PREPARATION (0.19 IN.

[4.83 mm]

NOTES:

1.Compressor shaft should be in the thrust position and gear shaft should be on geometric center when coupling is positioned as shown.

2.The taper is 1 inch per side for the driven unit bore (compressor side).

Fig. 29 Ð Typical High Speed Coupling for 17FX

Compressor/External Gear (Spacer Style)

Table 9 Ð Disc Pack Nut Tightening Torques

 

Coupling

Nut

Tightening

Torque

Tightening

Torque

 

(dry)

(lubed)*

 

Size

Size

ft-lb

ft-lb

 

N-m

N-M

 

 

 

 

 

 

204

1/2-20

55

75

45

60

 

304

5/8-18

115

155

90

120

*Light machine oil.

 

 

 

 

FLANGE BOLT

FLANGE NUT

NOTE: Motor rotor should be positioned on the mechanical center and gear shaft should be on geometric center when coupling is po- sitioned as shown.

Fig. 30 Ð Typical Low Speed Coupling for 17FX

Compressor/External Gear (Close Coupled)

b.Loosely assemble the disc pack bolts, nuts, and spac- ing washers. Half of the bolts attach the adapter to the disc pack. Refer to Fig. 30. These bolts are inter- spersed by bolts that attach the disc pack to the hub.

c.Tighten all nuts evenly and in an alternating fashion to the torque speci®ed in Table 9.

d.Bring the driving and driven equipment together until the ¯anges of the adapters just begin to touch. If there is a gap between the ¯anges at any point, adjust the axial position of the equipment until the amount of gap is cut in half to minimize the amount of axial mis- alignment.

e.Rotate the equipment shafts until the ¯ange holes are aligned.

f.Bolt the ¯anges together using the ¯ange bolts and nuts. See Fig. 30. Tighten all ¯ange nuts evenly and in a alternating fashion to the torque speci®ed in Table 10.

Table 10 Ð Flange Nut Tightening Torques

(Low Speed Couplings Only)

Coupling

Nut

Tightening

Torque

Tightening

Torque

(dry)

(lubed)*

Size

Size

ft-lb

N-m

ft-lb

N-M

 

 

 

 

304

5/16-24

20

27

18

24

*Light machine oil.

 

 

 

 

60

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Contents Start-Up, Operation, and Maintenance Instructions Safety ConsiderationsContents Piping Check Relief Devices Inspect Wiring OCCPC01S Input Service CongurationsCoupling Maintenance Motor Maintenance Inspect Water PipingContents Introduction Abbreviations17EX Chiller Familiarization Performance CertifiedTypical 17EX Chiller Components OIL Cooling Cycle Lubrication CycleStarters Refrigeration, Cycle17EX Compressor Lubrication Cycle Controls DenitionsTemperature Sensors See Fig Pressure Transducers Major PIC Components Panel LocationsPIC Component Panel Location Processor Sensor Input/Output Module Control Center17EX Controls and Sensor Locations LID PICPsio Equip GND Ð GRDTewac LID Operation and Menus Fig PROCESSOR/SENSOR INPUT/OUTPUT Module PsioGeneral LID Service Screen YES or no , on or OFF , etc. to select the desired state Override OperationsDefault Screen 17EX LID Menu StructureService Table Alarm HistoryEquipment Configuration Control TestCCN Carrier Comfort NetworkHgbp Ð Hot Gas Bypass LIDSetpoint ChwrChws HgbpDescription Range Units Reference Point Name Alarm History LID Display DataExample 1 Ð STATUS01 Display Screen Menu Status SelectExample 2 Ð STATUS02 Display Screen Example 3 Ð STATUS03 Display ScreenMenu Status Example 4 Ð STATUS04 Display Screen Example 5 Ð Setpoint Display ScreenMenu Example 6 Ð Configuration Config Display Screen ECW Control OptionICE Build Termination Example 7 Ð LEAD/LAG Configuration Display Screen LAG =2, Standby =3Example 8 Ð SERVICE1 Display Screen Example 9 Ð SERVICE2 Display Screen Spare Alert EnableExample 10 Ð SERVICE3 Display Screen Menu ServiceExample 11 Ð Maintenance MAINT01 Display Screen Example 12 Ð Maintenance MAINT02 Display ScreenDischarge Temperature Bearing TemperatureExample 13 Ð Maintenance MAINT03 Display Screen Example 14 Ð Maintenance MAINT04 Display ScreenDescription RANGE/STATUS Units Reference Point Name PIC System Functions Page Protective Safety Limits and Control Settings Capacity Overrides Page Page ECW Cent Capacity ICE Build Setpoint Example of Attach to Network Device Screen To Access the Service Screens Example of Holiday Period ScreenSTART-UP/SHUTDOWN Recycle Sequence FigPage Before Initial START-UP Job Data RequiredEquipment Required MotorPage 17EX Leak Test Procedures Ð HFC-134a Pressure Ð Temperature F Ð HFC-134a Pressure Ð Temperature CTemperature F Temperature CDehydration Cold Trap Inspect Wiring Check Optional Pumpout Compressor Water Pip900 500 901 7000 1000 7001-14500 2500 External Gear Pre-Start Checks Recommended Motor Fastener Tightening TorquesExternal Gear Lubrication System Check Starter Mechanical StartersSOLID-STATE Starters Set Up Chiller Control Conguration Input the Design Set Points Ð To modify the setInput the Local Occupied Schedule OCCPC01S Change the LID Configuration if Necessary Surge Limiting orT1/P1 Full Load Points T2/P2 Load Surge Prevention Occurs TOO Soon Occurs TOO Late Increase P1 by Decrease P1 by50% Charge Refrigerant into Chiller Initial START-UPControl Test Menu Functions Tests to be Devices Tested PerformedDry Run to Test Start-Up Sequence Check Motor RotationInitial Motor START-UP Page Flange Nut Tightening Torques Low Speed Couplings Only Calibrate Motor Current Demand Setting Check Oil Pressure and Compressor StopTo Prevent Accidental Start-Up Ð The PIC can be General RecommendationsOperating Instructions Operator DutiesStarting the Chiller Stopping the ChillerPumpout and Refrigerant Transfer Procedures Operating the Optional Pumpout CompressorPlant Chiller Serial No Chiller Model No Refrigerant Type Rear View RLA Valve ConditionGeneral Maintenance Return Chiller to Normal Operating ConditionsContact Seal Maintenance Refer to Ð Checking Guide Vane Linkage Ð Refer to FigContact Seal Page Chiller Alignment Checking Preliminary AlignmentMeasuring Angular Misalignment Elevation Alignment Formula Adjusting Angular Misalignment in Plan HOT Alignment CheckCorrecting Parallel Misalignment DowelingWeekly Maintenance Scheduled MaintenanceCheck Safety and Operating Controls Monthly Changing the Oil FiltersCompressor OIL 17EX Chiller Oil SpecicationsPumpout Typical Float Valve Arrangement Sleeve Bearings Page Motor Riggings Inspect the Heat Exchanger Tubes Troubleshooting Guide Controls for Optional Pumpout CompressorPage MAINT01 MAINT02MAINT03 MAINT041CR AUX OilpdOilt PICStarts Limit Exceeded Autorestart in ProgressFault OperationPotential FREEZE-UP Failure to StopRunning Ð Temp Control Running Ð Demand LimitedChiller Protect Limit Faults Sensor Fault Alert LOW OIL PressureAlert Autorestart PendingDESCRIPTION/MALFUNCTION Probable CAUSE/REMEDY External Gear Troubleshooting Guide ProblemPossible Cause Ð Item NO.s Possible Cause ActionÐ Thermistor Temperature F vs Resistance/Voltage Drop Temperature Voltage Resistance DropÐ Thermistor Temperature C vs Resistance/Voltage Drop Temperature Voltage Resistance DropModule Switch Control ModulesModule Address Input Options ModuleProcessor/Sensor Input/Output Module Psio Fig Starter Management Module SMM FigGRD Installation of NEW Psio Module Switch Setting Options ModuleFour-In/Two-Out Module Fig Options ModulePhysical Data and Wiring Schematics 4-In/2-Out ModuleAdditional Cooler Weights Weight Vessel SIZE²Condenser Total Weight Condenser Charge 100Additional Condenser Weights Compressor Weight and Elbow WeightDrive Component Weights 101Ð Total Motor Weight, English lb Ð Total Motor Weight, SI kg102 Marine Waterbox Cover Weights NIH Waterbox Cover WeightsApproximate Refrigerant HCFC-134a Charge 103Auxiliary Systems, Electrical Data Relief Valve Locations and Data104 Compressor Fits and Clearances 105106 Clearance Type DescriptionMeasure Tabulation Ð Impeller Clearances Open-Drive Compressors 10717FX 108 109 TempPress Tewac110 111 112 113 General114 GND Ð GroundT1-T4 Terminal StripIndex Index Index Index Index Copyright 1997 Carrier Corporation

17EX specifications

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