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YORK INTERNATIONAL

14

INSTALLATION

Close-Coupled Models

1. Place the number of shims originally required on

each motor mounting rail.

2. Lift motor to the proper location and push motor

carefully against the compressor motor adapter.

3. Line up holes in the face of the motor with the holes

in the compressor motor adapter. Place the hex head
cap screws through the compressor motor adapter
and screw into the tapped holes on the motor, (but
do not fully tighten screws). (See Fig. 15)

4. Place the hex head cap screws and washers in holes

in motor feet. Make sure the motor is shimmed cor-
rectly. Place hex nuts on screws and tighten and
torque.

5. Tighten and torque screws holding motor-to-motor

adapter.

6. Assemble the coupling. Refer to Form 160.49-N4.

Open-Drive Models

1. Place the number of shims originally required on

each motor mounting channel.

2. Lift motor to its proper location on the motor mount-

ing channels. Fasten with cap screws, washers, and
hex nuts.

3. Assemble the coupling. Refer to Form 160.49-N4.
4. Re-assemble the coupling guard.

Before opening any part of the
compressor, the compressor must be
pumped down to atmospheric
pressure.

SHAFT SEALS

Shaft seals applied to these compressors are of two dif-
ferent designs. Original design compressors used a car-
bon ring cartridge type shaft seal. This design is shown in
Figs. 19 - 23; procedures for removal and installation are
shown on pages 14 & 15. Beginning approximately May
1998, compressors are equipped with a bellows-type shaft
seal. This seal is shown in Fig. 29; procedures for re-
moval and installation are shown on pages 16 & 17.

Removal (Cartridge Type Seal)

To remove/replace the cartridge type shaft seal, pro-
ceed as follows:

1. Remove compressor coupling as described on pre-

vious pages under MOTOR REMOVAL AND
REPLACEMENT. Also remove the compressor
coupling hub from the compressor shaft.

2. Remove the oil drain line from the bottom of the

shaft seal cover plate. (See Fig. 20)

3. Remove the (8) cap screws holding the cover plate

and remove the cover plate. The stationary carbon
seal will remain in the cover plate as it is removed.
Do not touch the carbon seal surface.

4. Remove the snap ring and sleeve.
5. Remove the seal cartridge assembly from the cover

plate. Do not disassemble the cartridge assembly.

6. Using items from the tool kit as shown in Fig. 21

remove the seal collar from the shaft. (also see Figs.
22 and 23)

COUPLING GUARD

26296A

FIG. 18 –

COUPLING GUARD (OPEN-DRIVE MODELS)

CARBON SEAL
CARTRIDGE
ASSEMBLY
(STATIONARY)

FIG. 19 –

CARTRIDGE TYPE SHAFT SEAL CROSS
SECTION

26439A

SLEEVE

SNAP
RING

COVER
PLATE

DRAIN TUBE

“O” RING

SEAL
COLLAR

“O” RING

Compressor Service

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Содержание HA-57

Страница 1: ...OR COMPRESSOR MODEL CODE YDHF 39 P1 YDHF 40 P2 YDHF 42 P3 YDHF 44 P4 YDHA 36 LHA 36 G3 YDHA 41 LHA 41 G4 YDHA 46 LHA 46 H0 YDHA 50N LHA 50N H1 YDHA 50W LHA 50W H1 YDHB 57 LHB 57 HA 57 H2 YDHB 61 H3 YDHD 46 H4 YDHD 50N 50W H5 YDHD 57 H6 YDHD 59 H7 YDHD 61 H8 YDHA 65 LHA 65 J1 YDHA 73 LHA 73 J2 YDHA 81 LHA 81 J3 YDHA 90 LHA 90 J4 Also see NOMENCLATURE page 5 ...

Страница 2: ...YORK INTERNATIONAL 2 ...

Страница 3: ...is expected that this indi vidual possesses independent training that will enable them to perform their assigned tasks properly and safely It is essential that prior to performing any task on this equipment this individual shall have read and understood this document and any referenced materials This indi vidual shall also be familiar with and comply with all applicable governmental standards and ...

Страница 4: ...ling Bearing Housing 30 Installing Front High Speed Bearings 30 Installing Front Low Speed Bearings 30 Installing Balance Piston Diffuser Plate 31 Installing The Impeller 31 Disassembly Of Rotor Scroll 32 Removing The Nozzle Base Plate 32 Removing The Impeller Eye Seal 33 Re Assembly Of Eye Seal 34 Re Assembly Of Nozzle Base Plate 34 Re Assembly Of Scroll Housing To Rotor Support 34 Removing The P...

Страница 5: ...urnal and thrust bearings The open drive compressor shaft seal consists of a spring loaded precision carbon ring high temperature elastomer O ring static seal and a stress relieved precision lapped collar The seal features a small face area and low rubbing speed It provides an efficient seal under high pressure conditions The seal is oil flooded at all times and is pressure lubricated during compr...

Страница 6: ...nce com pressor parts have been disassembled and cleaned many valuable indications of the compressor condition are lost Materials found in oil or on burned surfaces can often give an indication as to why a part or parts have failed Protect Parts and Surfaces Do not pile or throw parts indiscriminately Oil surfaces likely to rust Tape surfaces subjected to scratching or nicking during re pair opera...

Страница 7: ... 5CK 1700 CS 5CL 2635 CT 5CM 2635 CU 5CN 2635 CV 5CO 2635 CW 5CP 2930 CX 5CQ 2930 CY 5CR 2930 CZ 5CS 2930 CA 5CT 5750 CB 5CU 5750 DA 5CV 5750 D B 5CW 6800 DC 5CX 6800 5DA 7300 5DB 7300 HIGHVOLTAGE MOTOR CODE 60 HZ 50 HZ WEIGHTS CH 2670 CJ 5CE 2670 CK 5CF 3100 CL 5CG 3100 CM 5CH 3100 CN 5CI 3100 CP 5CJ 3700 CR 5CK 3700 CS 5CL 3700 CT 5CM 3700 CU 5CN 3700 CV 5CO 4500 CW 5CP 4500 CX 5CQ 4500 CY 5CR 4...

Страница 8: ...ER PLAIN 375 14 021 01262 4 HEX NUT 375 16 2 021 00467 5 GUIDE PIN 10 24 2 064 46488 6 EYE BOLT 3125 18 2 021 12420 7 WASHER PLAIN 3125 16 021 05166 8 GUIDE PIN 250 20 2 064 46499 9 HOOK TOOL 2 064 46610 10 GUIDE PIN 375 16 2 064 18716 11 STUD SPL 500 20 1 064 14500 12 HEX NUT 500 20 1 021 00483 13 EYE BOLT 875 1 021 07703 14 WASHER PLAIN 875 2 021 05158 15 EYE BOLT 375 16 3 021 13498 16 WASHER PL...

Страница 9: ...16 WASHER PLAIN 3 8 11 021 05167 17 EYE BOLT 5 16 2 021 12420 18 WASHER PLAIN 5 16 2 021 05166 19 PINION TOOL Mod 65 73 1 064 48028 20 PINION TOOL Mod 50 57 1 064 48029 21 PIPE 1 023 15508 ITEM DESCRIPTION QTY PART NO NO PER KIT 1 GEAR LOCKING TOOL 1 364 48023 2 CAP SCREW 5 8 1 021 08389 3 SPACER TOOL 1 364 48022 4 CAP SCREW 1 2 2 021 08388 5 WASHER PLAIN 1 2 2 021 01276 6 BAR TOOL 1 064 47031 7 H...

Страница 10: ...17 32 14 021 01276 4 NUT HEX HVY 1 2 2 021 02860 5 PIN GUIDE 2 064 46488 6 BOLT EYE 5 16 2 021 12420 7 WASHER PLAIN 11 32 16 021 05166 8 PIN GUIDE 1 4 20UNC 2 064 46499 ITEM DESCRIPTION QTY PART NO NO PER KIT 9 HOOK TOOL 2 064 46610 10 PIN GUIDE 3 8 2 064 18716 11 STUD SPECIAL 1 064 14500 12 NUT HEX HVY 1 2 1 021 00483 13 BOLT EYE 7 8 1 021 07703 14 WASHER PLAIN 15 16 2 021 05158 15 BOLT EYE 3 8 3...

Страница 11: ...64 48345 7 NUT HEX 4 021 00451 8 PIN GUIDE 2 064 46499 9 HOOK TOOL 2 064 46610 10 PIN GUIDE 3 8 3 064 18716 11 STUD SPECIAL 500 1 064 14500 ITEM DESCRIPTION QTY PART NO NO PER KIT 12 NUT HEX HVY 1 2 1 021 00483 13 BOLT EYE 7 8 1 021 07703 14 WASHER PLAIN 15 16 5 021 05158 15 BOLT EYE 3 8 3 021 13498 16 WASHER PLAIN 13 32 11 021 05167 17 BOLT EYE 5 16 2 021 12420 18 WASHER PLAIN 11 32 2 021 05166 1...

Страница 12: ...EX 1 4 4 021 00451 8 PIN GUIDE 1 4 2 064 46499 9 HOOK TOOL 2 064 46610 10 PIN GUIDE 3 8 3 064 18716 ITEM DESCRIPTION QTY PART NO NO PER KIT 11 STUD SPECIAL 500 1 064 14500 12 NUT HEX HVY 1 2 1 021 00483 13 BOLT EYE 7 8 1 021 07703 14 WASHER PLAIN 15 16 5 021 05158 15 BOLT EYE 3 8 3 021 13498 16 WASHER PLAIN 13 32 11 021 05167 17 TOOL SPECIAL 1 064 48133 18 SEAL O RING 7 16 1 028 12551 20 ADAPTER I...

Страница 13: ...gement of these parts See Fig 17 Remove the coupling spool and disc packs 5 Taking care to see that the motor is properly sup ported remove the bolts that hold the motor to the motor adapter 6 Remove the bolts nuts and washers holding the motor to the mounting rails Note location of any shims 7 Lift the motor and pull it away from the compres sors Lower motor to floor for servicing Remove shims fr...

Страница 14: ...f ferent designs Original design compressors used a car bon ring cartridge type shaft seal This design is shown in Figs 19 23 procedures for removal and installation are shown on pages 14 15 Beginning approximately May 1998 compressors are equipped with a bellows type shaft seal This seal is shown in Fig 29 procedures for re moval and installation are shown on pages 16 17 Removal Cartridge Type Se...

Страница 15: ...is positioned with the lapped surface facing out See Fig 22 4 Re install the cover plate and seal cartridge assem bly Use care so that the carbon seal is not damaged 5 Re install the sleeve and secure it with the snap ring 6 Re connect the oil drain line and re install the com pressor coupling if no further service is planned FIG 23 CARTRIDGE TYPE SHAFT SEAL COMPONENTS O RING SEAL COLLAR CARBON SE...

Страница 16: ...how to remove and install these seals It is important that the shaft seal sleeve is securely attached to the com pressor shaft prior to removal of the retaining clips These clips protect the seal internals from harm during the assembly process and insure the proper positioning of the shaft seal for proper seal face loading Anytime a seal cartridge is outside the compressor the retaining clips need...

Страница 17: ...the weight of the back end of the rotor support 4 Taking care that the motor is properly supported remove the bolts that hold the motor to the motor adaptor Remove the motor from the chiller and sit away from work area See Motor Removal and Replacement described on page 13 DO NOT remove the motor adaptor from the compressor 5 Insert eyebolt into the top of the rotor support and using proper riggin...

Страница 18: ...RSUPPORT ROTOR SCROLL 26439BA FIG 26 IMPELLER AND BALANCE PISTON IMPELLER SIZES 46 AND LARGER DIFFUSERPLATE BALANCE PISTON RETAINER SOCKET HEAD CAP SCREWS 3 IMPELLER CAP SCREWS 3 OR 6 IMPELLER CLAMPING COLLAR HIGH SPEED SHAFT BALANCE PISTON SEAL COIL SPRINGS 8 26439A Compressor Service ...

Страница 19: ... the following See Fig 27 Position compressor so that it is sitting on the correct horizontal plane to assure correct readings a Impeller rim Runout Design 0 003 Max b Impeller eye Runout Design 0 002 Max c High Speed Axial thrust Design 0 008 to 0 021 d Low Speed Axial Thrust Design 0 011 to 0 019 FIG 28 REMOVING IMPELLER IMPELLER SIZES 46AND LARGER 26345A CAP SCREWS IMPELLER IMPELLERCLAMPING COL...

Страница 20: ...om tool kit into jacking holes and use proper rigging methods to lift diffuser plate from compressor Also remove o ring from back of dif fuser plate Original design balance piston seal on HA HB and HD style compressors were equipped with 8 coil springs Current design on these compressors use 16 coil springs On the HF style compressor the balance piston seal uses a flat spring washer in place of th...

Страница 21: ...te Above BALANCE PISTON SEAL FIG 32 BALANCE PISTON SEAL 26344A DIFFUSER PLATE BALANCE PISTON SEAL BALANCE PISTON RETAINER HIGH SPEED SHAFT SOCKET HEAD CAP SCREWS SHOULDER BOLTS FIG 34 REMOVING DIFFUSER PLATE 26665A TAPPEDHOLES DIFFUSERPLATE 2 FIG 35 HF BALANCE PISTON SEAL ASSEMBLY RETAINERPLATE FLATSPRING WASHER BALANCE PISTON SEAL 00589VIP ...

Страница 22: ...speed bearing use 2 hook tools as shown in Fig 41 Carefully pull the bearing out of the bearing housing Note the position of roll pin See Fig 42 On the HF style compressors all low and high speed bearings use o rings on the outside diameter of the bear ing These o rings should be discarded and new o rings installed when reas sembling compressor REMOVING FRONT HIGH SPEED BEARINGS SEE FIG 36 1 Remov...

Страница 23: ...4837 FIG 41 FRONT LOW SPEED BEARING REMOVAL LD04836 FIG 43 FRONT HIGH SPEED BEARING REMOVAL FIG 44 ALL FRONT END BEARING REMOVED 26329A LOW SPEED BEARING LOW SPEED THRUSTBEARING INSIDE SURFACE 26332A FRONT HIGH SPEED BEARING RETAINER CLIPWITH CAP SCREW ROLL PIN LOW SPEED SHAFT 26330A FIG 42 LOW SPEED BEARING REMOVED WITH HIGH SPEED BEARING IN PLACE 2 ...

Страница 24: ... low speed gear use a 1 2 13 eye bolt in the end of the shaft and pull the gear out of the rotor support Before re assembly be sure the compressor hous ing is absolutely clean by cleaning it with an ap proved safety solvent and blowing it dry with com pressed air Inspect all wearing surfaces and re place parts as necessary See Cleaning And Checking Wearing Parts page 6 Discard O rings and replace ...

Страница 25: ...n 1 Inspect the bearing surface of the drive shaft and be sure the drive shaft is absolutely clean 2 Apply a light coat of oil and Molykote to the crank shaft and to the inside and outside surfaces of the bearing 3 Carefullyslidethebearingintopositionoverthedrive shaft Be sure it is turned so that the slot for the retainer clip is at the top See Fig 47 4 Install the retainer clip and cap screw 5 I...

Страница 26: ...Fig 52 5 Remove the cap screws that hold the high speed thrust collar to the high speed shaft See Fig 53 Remove the thrust collar 1 4 20 puller holes are provided for convenience 6 Remove the high speed forward thrust bearing See Fig 54 10 24 puller holes are provided for con venience When inserting puller bolts use care that bearing pads are not damaged Note position of in dexing roll pin and mat...

Страница 27: ...RUST COLLAR REMOVED 26339A HIGH SPEED FORWARD THRUST BEARING HIGH SPEED THRUST COLLAR INSIDE SURFACE PULLER HOLES 10 24 FORWARD THRUST BEARING 26338A FIG 54 HIGH SPEED FORWARD THRUST BEARING ROLL PIN HOLE FORWARD THRUST BEARING ROLL PIN 26337A FIG 55 FORWARD THRUST BEARING REMOVED PULLERHOLES 1 4 RETAINERCLIP WITHSCREW 26336A FIG 56 REAR HIGH SPEED JOURNAL BEARING 2 ...

Страница 28: ... oil and trip the pres sure switch to shut down the chiller 2 Remove the cap screws holding the high speed re verse thrust bearing and remove the bearing See Fig 50 Note alignment of oil passages 3 Before removing the high speed thrust collar it is advisable to measure the run out on the collar face Mount a dial indicator as shown in Fig 51 and ro tate the compressor shaft to record run out Maxi m...

Страница 29: ...peed reverse thrust bearing Install re verse thrust bearing using a new o ring Be sure oil passages in the bearing line up with the oil passages in the compressor casing 7 Re install the Proximity Probe After reinstalling the Proximity Probe a Calibration Procedure as outlined in Form 160 49 M2 must be performed before restarting the compressor REAR HIGH SPEED BEARINGS INSTALLATION HD AND HF COMPR...

Страница 30: ... speed bearing into place over the shaft and into the cavity in the bearing housing Install the retainer clip and cap screw INSTALLING FRONT LOW SPEED BEARINGS 1 Apply a coating of oil and Molykote to the bearing surface of the low speed shaft 2 Apply a coating of oil and Molykote to the inside and outside surfaces of the low speed bearing 3 Carefully slide the low speed bearing into place over th...

Страница 31: ...ye is 002 If T I R deviates from specification increase torque to 150 ft lbs Maximum to the bolts opposite to the high side Repeat as necessary until allowable T I R is achieved 7 Check high speed thrust clearance Acceptable thrust tolerance is between 008 to 021 8 Check low speed thrust clearance Acceptable thrust tolerance is between 011 to 019 Note that this measurement must be taken with the s...

Страница 32: ...xternal piping from the rotor scroll 4 Support the rotor scroll by proper rigging methods then remove the bolts holding the rotor scroll to the unit 5 Carefully remove the rotor scroll from the unit base and rest it on the end of the suction housing Be sure the rotor scroll is resting solidly block if nec essary See Fig 63 REMOVING THE NOZZLE BASE PLATE 1 Remove the 6 cap screws that hold the nozz...

Страница 33: ...ion VaneAssembly can not be removed from the suction con nection side of the compressor on the HA HB and HD style compressors It must be removed from the inside of the rotor scroll housing AFTER the nozzle base plate is removed If disas sembly of the PRV housing is antici pated on these compressors proceed to Removing the Pre Rotation Vane Housing on page 35 Otherwise pro ceed with re assembly of ...

Страница 34: ...RE ASSEMBLY OF THE EYE SEAL HA HB HD Style Compressors 1 Inspect all parts before re assembly See Clean ing and Checking Wearing Parts page 6 Re place with new parts as necessary 2 Be sure the helical springs are securely locked in pockets Give each spring a clockwise twist to lock it into place Install a new o ring in the eye seal retainer 3 Place the eye seal ring and retainer into position on t...

Страница 35: ...or on the HA HB and HD style compressors The rotor sup port must first be removed from the rotor scroll and the rotor scroll dissembled as described previously On the HF style compressor access to the PRV assem bly can be made by removing the suction piping and re moving the cap screws that secure the PRV plate sup port to the rotor scroll Insert proper guide pins and using proper rigging methods ...

Страница 36: ...efully pull off the guide studs and place on a work bench to replace any parts 3 The PRV vanes are actuated by a rotating vane drive ring through individual vane arms to each vane Individual vanes may be removed by a unscrewing the cap screw which secures the vane arm to the vane b lifting off the vane arm c lifting off the two special washers and pulling the vane out toward the inside of the vane...

Страница 37: ...following parts are required To replace control shafts refer to Fig 63 and proceed as follows 1 Reduce the system pressure to slightly above at mospheric pressure 2 Disconnect the linkage from the external lever Re fer to Fig 73 Detail A 3 Loosen and remove the 12 pt hd cap screw and washer Refer to Fig 73 Detail B 4 Insert the special stud See page 8 Special Tools through the hole in the external...

Страница 38: ...cover plate cap screw to a torque of 35 ft lbs THIS IS IMPORTANT AND ASSURES THAT THE SLEEVE WILL TWIST EQUALLY WHEN THE VANES ARE MOVED TO EITHER THE WIDE OPEN OR THE FULLY CLOSED POSITION 19 Connect the linkage to the external lever When connecting the vane linkage to the electric motor rotate the motor shaft to the closed position and con nect the vane linkage while holding the vanes in the clo...

Страница 39: ...haft with refrigerant oil Posi tion housing in place over the motor shaft and against the motor housing The pump housing match mark must be on one side of the motor Line the pump housing screw holes up with the screw holes in the motor housing 3 Lubricate the shaft key and place it in the keyway on the shaft 4 Lubricate the drive gear Slide the gear over the shaft line up the keyway with the key a...

Страница 40: ...5200 LD05199 ITEM DESCRIPTION QTY NO 1 OIL PUMP WITH MOTOR 1 2 HEATER 1 3 SENSOR TEMP 1 4 VALVE RELIEF 1 5 VALVE STOPANGLE 3 8 2 6 BOX ELECTRICAL 1 7 COVER ELECTRICAL BOX 1 8 SIGHTGLASS 2 9 GASKET COVER PLATE 1 10 VALVE STOPANGLE 1 4 1 11 HEATER 1 Oil Pump Service ...

Страница 41: ...RIVEN GEAR 1 6 DRIVE GEAR 1 7 SQUARE KEY 1 8 HEX HD CAP SCREW 4 9 MODEL NUMBER IDENTIFICATION 1 10 MOTOR 1 LD05203 FIG 77 REMOVING THE DRIVE GEAR INNER PUMP GEAR PULLER 10 24 UNC x 1 1 2 LG SCREW PULL GEAR WITH SCREW 15763 DRIVE GEAR 15759 SHAFT KEY DRIVEN GEAR REMOVED DRIVE GEAR REMOVED SEAL ASSEMBLY DETAIL A DETAIL B 3 ...

Страница 42: ...gasket and the oil pump and sump cover assembly to oil sump using the 16 5 8 hex nuts Tighten nuts using the alternating tightening method Torque to 155 ft lbs 3 Reconnect all electrical leads to fusite connection on sump cover Reconnect oil lines Reconnect transducers 4 Charge oil into oil sump See Operating Instruc tions Form 160 49 O1 Be sure oil is compatible with refrigerant being used 5 Make...

Страница 43: ...FORM 160 49 M1 43 YORK INTERNATIONAL NOTES 3 ...

Страница 44: ...PennsylvaniaUSA17405 1592 Subject to change without notice Printed in USA Copyright by York International Corporation 2001 ALL RIGHTS RESERVED Form 160 49 M1 601 Supersedes 160 49 M1 1292 Tele 800 861 1001 www york com ...

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