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Operating manual

SAB 202

Screw compressor unit

0175-168 ENG

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Summary of Contents for SAB 202

Page 1: ...Operating manual SAB 202 Screwcompressorunit 0175 168 ENG...

Page 2: ...Compressor no Refrigerant R717 HFC HCFC ______ Other ______ Control Transducers and manual regulation of Vi slide UNISAB II and manual regulation of Vi slide UNISAB II and automatic regulation of Vi s...

Page 3: ...r and efficient operation Sabroe Refrigeration YORK Denmark ApS hereafter referred to as Sabroe Refrigeration is not liable for damage occurring during the warranty peri od where this is attributable...

Page 4: ...surfaces 11 The sign Internal protection 11 Other warning signs 11 Emergency stop 12 Safety at service 12 Warnings in instructions 13 Texts marked with Danger 13 Texts marked with Warning 13 Texts mar...

Page 5: ...ntenance instructions 27 Maintenance of the compressor unit 27 General 27 Major service intervals 28 Checking the oil 29 Visual inspection 30 Oil level 30 Oil level glass 30 Oil change 30 Oil charging...

Page 6: ...ded they have been fitted with explo sion proof equipment This can be seen from the Ex name plates fixed on each unit See Fig 1 Fig 1 Please note that special tools which do not cause any sparks must...

Page 7: ...of Sabroe Refrigeration equipment All Sabroe Refrigeration equipment can be identified by one or several name plates positioned as illus trated in the following drawing Fig 2 SAB 202 screw compressor...

Page 8: ...thor ity the approval no will be shown here Pressure system Low pressure side of compressor piping is referred to as LP High pressure side of compressor piping is referred to as HP Fluid Group Refrige...

Page 9: ...ormation Compressor no Compressor manufacturing number Year Year of manufacture Type Manufacturer s type designation Nominal speed Shows rotational speed of drive shaft at typ ical running condition S...

Page 10: ...CAT Shows the approval no of the vessel issued by the relevant authority as well as the cat egory according to PED 97 23 EEC Article 9 Side Refers to the columns Shell and Tube Fluid Shows the refrig...

Page 11: ...esentative do NOT work with the electrical power ON Any work with the electrical power ON should be per formed by a Sabroe Refrigeration field service representative The customer and subsequent transf...

Page 12: ...els and machine parts will become so hot during operation that your skin will get burnt if you touch them for one second or more The sign Internal protection Compressor blocks and units are usually de...

Page 13: ...ot start up inadvertently It is recommended to remove all main fuses Switch off all electric components on the compressor unit before the disman tling servicing Make sure that there is neither overpre...

Page 14: ...k Always turn off the main switch before servicing the unit Contact with high voltage may cause death or serious injury Failure to observe information marked with Dan ger may cause death or serious in...

Page 15: ...king for with or near you fully understands and most importantly complies with the following safety precautions and procedures when operating the compressor unit Observe the safety warnings on the com...

Page 16: ...and under stood all the safety instructions Assign only qualified service or maintenance per sonnel to perform maintenance and repair work on the unit They must be trained by Sabroe Refrigeration or...

Page 17: ...number or a labelled tag on all wires which are not already marked If wiring is replaced make sure that the new wiring is the same type length size and has the same current carrying capacity Close and...

Page 18: ...mmendation for Sabroe compressors When changing oil on the compressor or draining oil from the vessel of the refrigeration plant al ways collect the used oil in containers marked waste oil and send th...

Page 19: ...SAB 110 SM SAB 110 SF SAB 110 LM SAB 110 LF 98 98 98 98 81 81 81 81 Mk2 SAB 110 SM SAB 110 SF SAB 110 LM SAB 110 LF SAB 110 LR SAB 110 SR Mk3 SAB 128 M SAB 128 F SAB 128 R 100 104 104 82 86 86 Mk4 SA...

Page 20: ...eets explaining the risks as sociated with the relevant refrigerant should be supplied by the supplier of the plant WDanger Body contact with leaking liquid refrigerant entails high risk of injuries c...

Page 21: ...nstructions 20 38 0175 168 ENG Rev 2005 09 Operating Manual SAB 202 Valves for operating the compressor Fig 7 2 Pos Description Pcs 1 Suction stop valve 1 2 Discharge stop valve 2 3 Control equipment...

Page 22: ...The correct level appears only when the unit is in operation If the oil level is too low the cause must be identified 3 Make sure that all valves are positioned in accordance with the following table...

Page 23: ...ice valve for oil drainage Closed 52 2 Oil return valve Throttle valve Opens automatically See Oil return system for fine filter element 60 1 Stop valve Usually open Is also used for oil charging See...

Page 24: ...5 1BAR 25 M140 132 55 94 GT 214 E F 70 71 NC NO 72 M10 8 8 72 DN100 204 55 M10 8 SAB202SF LF DN200 SAB202SM LM DN150 20 M22 19 43 93 23 21 M6 220 91C 90 91A FT 18 NO NO PT 1 TT TT 6 PT 3 100 39 POV80...

Page 25: ...l filter If it exceeds 0 7 bar replace the filter as soon as possible to prevent the compressor unit from being stopped 5 Check the oil level in the oil separator 6 Perform the steps described in the...

Page 26: ...2 Monitoring the operation Machine room or system designation Date Check list Normal level Data registered at From To 04 00 am 08 00 am 12 00 am 04 00 pm 08 00 pm 12 00 pm Suction pressure Suction tem...

Page 27: ...must not be filled to the top with liquid refrig erant If the screw compressor unit is exposed to vibra tions during a long idle period the compressor and motor bearings may be damaged To prevent thi...

Page 28: ...cessary submit a report so that a closer check can be made Check the oil level in the oil separator Screw compressor unit Check the oil level in the compressor Reciprocating compressor unit Check the...

Page 29: ...30 20 10 5 0 50 0 10 15 20 5 10 15 20 5 25 25 T0177068_0 10 5 0 5 10 20 25 30 35 15 20 30 35 30 25 20 15 5 0 10 5 10 15 20 30 40 45 50 55 55 50 45 40 TE C TC C Extreme operating conditions 20 000 hou...

Page 30: ...p and after each main inspection see footnote 20 000h 30 000h 40 000h HCFC R717 HCFC R717 HCFC R717 50 200 1 000 2 500 5 000 X X X 10 000 X X X 15 000 X X 20 000 25 000 X X 30 000 35 000 40 000 It is...

Page 31: ...ate any prob lems Oil level glass It must always be possible to see the oil level in one of the two oil level glasses pos 31 see piping diagram The oil level will rise approx 10 mm if the indicated am...

Page 32: ...ge valve pos 24 will open and the pump pos 5 will start The oil will now circulate until the system is free from air bubbles after which the ball valve pos 9 will close The oil will now be charged to...

Page 33: ...Maintenance instructions 32 38 0175 168 ENG Rev 2005 09 Operating Manual SAB 202 Fig 12 Piping diagram for oil charging 5 20 2 1 B 9 7 12 M A 24...

Page 34: ...Oil charge oil level at the middle of upper sight glass during operation Oil cooler type Litres Oil separator Litres Compr pipes Litres Total unit Litres SAB 202 SAB 202 SAB 202 SAB 202 OOSI 1614 11 1...

Page 35: ...utely essential to lubricate the bearings correctly and use the appropriate type of grease For correct service please follow the instructions of the motor manufacturer Replacing motor bearings Please...

Page 36: ...volves a great risk as HFC and HCFC refrigerants develop toxic gasses when heated Make sure that there are no air traps as heating results in a pressure rise Disposal of machine parts When dismantling...

Page 37: ...tions for products supplied by sub suppliers are collected here References to instructions The instructions from Sabroe Refrigeration and sub suppliers must as far as possible be copied from the origi...

Page 38: ...Danger 13 E Emergency stop 12 F Final disposal 35 Fuses and their position 21 H High voltage 15 Hot and cold surfaces 19 M Maintenance instructions 27 Maintenance safety 15 O Oil Charge 33 Operating...

Page 39: ...substance 11 HIGH VOLTAGE 10 Internal overpressure 11 Internal protection 11 Temperature of tangible surfaces 11 Signs in instructions 10 Starting 21 Stopping routine 26 T Tables for noise data 18 Too...

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