Witt GP 42 Operation & Service Manual Download Page 12 | Manualshive

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12

4.5

ГАБАРИТНЫЕ

И

ПРИСОЕДИНИТЕЛЬНЫЕ

РАЗМЕРЫ

ФИГ

. 2B

4.5 DIMENSIONS

Д

АННЫЕ

В

ММ

И

(

ДЮЙМ

)

A

LL DIMENSIONS IN MM AND

(

INCH

)

GP 51 / GP 51

A

/ GP 52

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Summary of Contents for GP 42

Page 1: ...ICATIONS 19 5 1 GENERAL 19 5 2 DETERMINATION OF THE REQUIRED FLOW 20 5 3 ADAPTATION TO PLANT REQUIREMENTS 20 6 INSTALLATION INSTRUCTIONS 22 6 1 PUMP ARRANGEMENT 22 6 2 PUMP CONNECTION 22 6 3 DOWNLEG D...

Page 2: ...PERATURE 50 WITH OPERATING TEMPERATURES BELOW 50 C THE PUMPS SHOULD BE CHARGED WITH A LOW TEMPERATURE OIL 4 PUMP PERFORMANCE DETAILS ARE SPECIFIED IN CHAPTER 4 TECHNICAL DATA 5 THE STANDARD PUMP DESIG...

Page 3: ...TO CALL OUR SERVICE DEPARTMENT WHO WILL BE GLAD TO ASSIST YOU MAKE SURE THE GROUND AREA AROUND THE PUMP IS CLEAR E G NO INCOMING ELECTRIC POWER CABLES IF YOU CANNOT AVOID SUCH OBSTRUCTION THEY SHOULD...

Page 4: ...STRUCTIONS IN THE OPERATING MANUAL ARE IGNORED THE REFRIGERANT PUMP INCLUDING ACCESSORIES IS OPERATED INCORRECTLY OR IS INSTALLED CONTRARY TO THESE INSTALLATION INSTRUCTIONS THE REFRIGERANT PUMP IS US...

Page 5: ...OR FLANGE 2 MODEL 2 PUMP WITH COMPLETE COUPLING COUNTERFLANGES INCL SCREWS AND GASKETS MOTOR CONNECTION 3 2 MODEL 3 AS ABOVE TO MODEL 2 SPEC WITH 1 STOP VALVE EA SUCTION SIDE 1 STOP VALVE EA WITH VENT...

Page 6: ...E FLANGES WITH SCREWS AND GASKETS 3 3 2 3 4 5 10 BAR C 3 3 ORDER INFORMATION REFRIGERANT VOLTAGE AND FREQUENCY SELECTED MODEL FOR MODELS 2 AND 3 THE REQUIRED COUPLING SIZE OR MOTOR SIZE OF THE MOTOR T...

Page 7: ...187 101 223 3C MODEL 3C KG LBS 59 130 63 139 91 201 91 201 107 236 4 2 4 2 MOTOR SELECTION THE MOTOR SIZE IS MAINLY DEPENDING ON THE SPECIFIC WEIGHT RESPECTIVE DENSITY OF THE REFRIGERANT SEE TABLES BE...

Page 8: ...APTER RING TO FIT THE MOTOR TO THE PUMP GP 51 FREQUENCY SPEED REFRIGERANT MOTOR SIZE POWER VOLTAGE N PARTNO WEIGH T REMARKS HZ MIN 1 RPM KG DM 3 KW HP VOLT KG 380 420 660 725 Y 2222 000009 50 1500 0 7...

Page 9: ...EQUENCY SPEED REFRIGERANT MOTOR SIZE POWER VOLTAGE N PARTNO WEIGHT REMARKS HZ MIN 1 RPM KG DM 3 KW HP VOLT KG 380 420 660 725 Y 2222 000011 50 1500 0 7 NH3 132S 5 5 7 4 220 240 380 420 Y 2222 000008 6...

Page 10: ...1 C 35 SHAFT SEAL PTFE IMPELLERS EN GJS 400 15 GGG 40 MAIN BOLTS 8 8 COUNTER FLANGES P355NH BOLTS FOR COUNTER FLANGES 8 8 GASKETS CENTELLEN NP RESERVOIR OIL MR 520 PAINTING SYSTEM W 9 1 W 9 2 W 9 1 W...

Page 11: ...11 4 5 2A 4 5 DIMENSIONS GP41 GP42 GP 41 GP 42 ALL DIMENSIONS IN MM AND INCH...

Page 12: ...12 4 5 2B 4 5 DIMENSIONS ALL DIMENSIONS IN MM AND INCH GP 51 GP 51A GP 52...

Page 13: ...13 4 6 3A 4 6 SECTIONAL VIEWS GP 52 GP 52 IS SHOWN OTHER PUMPS ARE SIMILAR...

Page 14: ...14 SECTIONAL VIEW OF DETAILS 3B DETAIL OF THE BEARING 3C DETAIL COUPLING AND MOTOR CONNECTION...

Page 15: ...15 SECTIONAL VIEW OF DETAILS 3D DETAIL OF THE SHAFT SEAL 3E 3 D SKETCH OF THE SHAFT SEAL...

Page 16: ...5 5641 000010 1 PACKING FOR STOP VALVE 39 8 14 X 8 5642 000015 8 14 X 8 5642 000015 1 BALL BEARING WITH STEEL CAGE 41 5341 000003 250 5341 000002 390 BEARING BUSH 42 45 2161 001219 55 2161 001256 225...

Page 17: ...AIR KIT E FOR TWO STAGE PUMPS FOR EXTENDED SUPPLY WITH PARTS E 2161 002205 2558 2161 002405 4702 2 X NR 10 15 16 41 45 1 X NR 19 1 19 2 30 47 49 2 X PARTS NO 10 15 16 41 45 1 X PARTS NO 19 1 19 2 30 4...

Page 18: ...ETURN VALVE ERA IS PROVIDED WITH A PURGE CONNECTION PIPE DN 10 AND A HAND REGULATING VALVE EE6 SUPPLIED LOOSE THE EE6 SHOULD BE FITTED SO THAT ANY GAS MAY BE PURGED TO THE SURGE DRUM THE VALVE SHOULD...

Page 19: ...URING COMPRESSOR START UP PULL DOWN PERIOD AND DURING THE RAPID LOADING OR UNLOADING OF COMPRESSOR STEPS OF CAPACITY LARGE AMOUNTS OF GAS BUBBLES IN THE PUMP SUCTION LINE WILL CAUSE THE MASS FLOW OF L...

Page 20: ...RATE PUMP RATIO THE RE CIRCULATION RATE DEPENDS ON THE TYPE OF EVAPORATOR EQUIPMENT AND OPERATION CONDITIONS THE LARGER THE DUTY LOADING RATE THE GREATER THE RECOMMENDED RE CIRCULATION FACTOR TYPICAL...

Page 21: ...JUSTED AS FOLLOWS 5 5 PUMP CAPACITY TOO LARGE SWITCH OFF A PUMP MULTI PUMP APPLICATION OPEN A LIQUID BYPASS VALVE FIG 5B SPEED CONTROL OF THE PUMP FIG 5C PUMP CAPACITY TOO SMALL SWITCH ON AN EXTRA PUM...

Page 22: ...BE ALIGNED VERTICALLY ON CHANNEL FRAME SUPPORTS PLEASE CONSIDER THAT A CONDENSATE TRIP TRAY CAN BE PLACED AND CLEANED UNDERNEATH THE PUMPS THE OIL SIGHT GLASS CAN BE OBSERVED EASILY THE CONICAL SUCTIO...

Page 23: ...THE VERTICAL SUCTION LINE IS INSTALLED DIRECTLY TO THE PUMP AVOIDING ADDITIONAL ELBOWS OR HORIZONTAL RUN ANY GAS ACCUMULATION IN THE SUCTION LINE AND PARTICULARLY IN VALVES ATTACHED TO THE PUMP MUST...

Page 24: ...O THE SYSTEM OPERATION A LIQUID VELOCITY OF 1 5 M S IS NORMALLY RECOMMENDED ERA A NON RETURN VALVE THIS IS USUALLY A COMBINED STOP CHECK VALVE TYPE ERA IN THE DISCHARGE LINE IS REQUIRED WHEN SEVERAL P...

Page 25: ...52 23 75 37 121 50 164 GP 51 13 43 19 62 31 102 47 154 GP 52 26 85 40 131 65 213 0 2 WITT W 4652 0 01 A FLOW SWITCH CAN BE ALTERNATIVELY INSTALLED INSTEAD OF A DIFFERENTIAL PRESSURE SWITCH THE FLOW SW...

Page 26: ...USED IN SYSTEMS WHERE CONTAMINATION WITH MINERAL OIL IS NOT ALLOWED I E IN CASES WITH ESTER OIL IN THE SYSTEM THE RESIDUAL OIL MUST BE REMOVED AND THE PUMP CLEANED BY USE OF SOLVENTS 7 2 7 2 MOUNTING...

Page 27: ...OW PRESSURE RECEIVER FOR A MINIMUM RUNNING TIME OF APPROXATELY 2 3 MINUTES THE ELECTRICAL CONTROL SYSTEM INCLUDING ALL SAFETY CONTROLS MUST BE PRE TESTED PRIOR TO STARTING THE PUMP CHECK THE WIRING FO...

Page 28: ...CHAMBER SEE CHAPTER 8 2 CHECK THE CONICAL SUCTION FILTER FOR CONTAMINATION CHECK THE PUMPRE CIRCULATION PIPEWORK FOR OIL CONTAMINATION CHECK THE VIBRATION CHECK THE PRESSURE DIFFERENTIAL OF THE PUMP...

Page 29: ...RE SWITCHED OFF AND ARE BEING WORKED ON NOTE THE SEQUENCE OF ELECTRICAL CONNECTIONS AND DISCONNECT THE WIRING A TRAINED ENGINEER OR SUITABLE QUALIFIED ELECTRICIAN IN ACCORDANCE WITH ELECTRICAL ENGINEE...

Page 30: ...LARLY WHEN THE OIL LEVEL DROPS AFTER A SHORT PERIOD OF TIME LESS THEN 14 DAYS THE INNER SHAFT SEAL MUST BE REPLACED 85 19 2 19 1 19 1 19 2 85 IF THE SHAFT SEAL HAS BEEN REPLACED AND YOU OBSERVE AGAIN...

Page 31: ...T SEALS 57 CAREFULLY OPEN THE OIL FILLER PLUG 57 TURN AND WAIT UNTIL THE OIL CHAMBER IS DEPRESSURIZED THIS MAY TAKE A WHILE USE A WET CLOTH TO PROTECT THE PLUG 57 THE OIL FILLER PLUG 57 IS SLOTTED TO...

Page 32: ...F THE SHAFT SEAL SEE ALSO CHAPTER 4 6 FIG 3D AND 3E 16 15 13 12 13 OUTER SEALING MOTOR SIDE ASSEMBLE SPRING 16 PRESSURE RING 15 AND LIGHTLY OIL THE GROOVE IN THE PRESSURE RING PROTECT THE O RING AGAIN...

Page 33: ...THE GASKET 34 AND SLIDE ON THE HOUSING ALWAYS CAREFULLY TIGHTEN THE SCREWS CROSSWISE GP 50 GP 40 2 78 5 78 FIT FOR GP 50 PUMPS 1 FELT RING RESPECTIVE FOR GP 40 PUMPS 2 FELT RINGS 78 5 AND ASSEMBLE PA...

Page 34: ...T THE MARKS ALIGN TIGHTEN THE SCREWS CROSSWISE 8 5 8 5 CHANGING THE BEARINGS 21 LOOSEN SCREWS 21 IN THE TIGHTENING RING WHILE HOLDING AGAINST WITH THE COUPLING YOU CAN ONLY REMOVE THE SNAP SEEGER RING...

Page 35: ...A PLASTIC HAMMER TROUGH THE HOUSING REPLACE THE BEARING REPLACE THE INNER BEARING IN VICE GP 50 GP 40 THE BEARING IN GP 50 PUMPS IS SUPPRTED WITH ONLY 1 SNAP RING GP 40 PUMPS REQUIRE 2 SNAP RINGS TO...

Page 36: ...VALVE WHICH CAN BE INSTALLED IN PLACE OF THE LOWER 1 4 SREW PLUG IN THE DISCHARGE CHAMBER IN ADDITION A QUICK CLOSING ACTION VALVE MUST BE INSTALLED BEHIND THE DRAIN VALVE OIL FROM THE SUCTION CHAMBER...

Page 37: ...WAYS RETURN THE CONICAL SUCTION FILTER IN CONDITION FOUND WHEN THE PUMP WAS OPENED WITH THE PUMP 8 8 8 8 WARNINGS WITT WITT PUMPS ARE FOR REFRIGERATION SYSTEMS ONLY READ THESE INSTRUCTIONS COMPLETELY...

Page 38: ...DO NOT ALIGN SEE 8 4 FIG 14 15 4 2 4 SWITCHED OFF ON PRESSURE DIFFERENCE CONTROL SEE NUMBER 2 SET VALUE OF PRESSURE CONTROL NOT RIGHT HAND CONTROL VALVES IN SYSTEM OPENED TOO MUCH TOO QUICK START UP...

Page 39: ...75 4...

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