Sterling STT 110 Dehumidifier User Manual
Contents
1. o oa A OO N STT 110 STT 160 7 7 1 q TT QQ i 2 4 5 f i 2 3 gt mE ID number 85677 85367 94233 85323 96196 23918 88366 88628 85819 85820 Description blower STT 110 blower STT 160 sealing diffusor desiccant sealing filter cartridge when operating without return air cooler filter cartridge when operating with return air cooler guide roll with fixing device guide roll Spare parts list 10 2 SM2 605 Return air coo 29786 83972 Hopper heater 85343 84512 85652 85338 84510 85652 85363 84509 85652 85651 84508 85652 86371 89846 93303 86387 18232 84492 06925 ler optional return air cooler hose radiator 1 5 kW thermal breaker temperature limiter radiator 3 0 kW thermal breaker temperature limiter radiator 6 0 kW thermal breaker temperature limiter radiator 9 0 kW thermal breaker temperature limiter Pt 100 3 m Pt 100 6 m Pt 100 9 m Pt 100 12 m air control flap thermomet2. STT 110 STT 160 ST 25 Open the toggle type fasteners A at the hopper lid and fold the hopper lid upwards if in use remove be fore the single conveyor Clean the drying hopper Close the hopper lid and close the toggle type fasten ers A if in use re mount the single conveyor Remove any granules remaining in the cleaning opening TT 25 Maintenance 5 8 SM2 605 STT 110 STT 160 ST 60 ST 1600 Open the cleaning opening of the drying hopper Lift and turn the handle A to open the lock if in use remove before the single conveyor ST 400 ST 1600 2 handles Clean the drying hopper Close the cleaning opening of the drying hopper Turn the handle A until the cleaning opening is locked and then close the handle if in use re mount the single conveyor Remove any granules remaining in the cleaning opening ST 1200 and ST 1600 Clean the bead ST 60 ST 1600 Maintenance 5 9 SM2 605 STT 110 STT 160 6 Functional description This functional description is addressed to the operators of the equipment This functional description assumes general familiarity with drying equip ment It should be verified that the operators do indeed have the appropriate skills Functional description 6 1 SM2 605 STT 110 STT 160 6 1 General Information The dehumidified air dryers were developed for drying plastic granules Due to th
3. Check whether in your individual case the maintenance intervals must be shortened Maintenance 5 3 SM2 605 STT 110 STT 160 5 2 Cleaning or Replacing the Air Filter Set the release switch Timer at position C A Wait until the blower has stopped The run on time of the blower is 10 minutes If there is a return air cooler installed switch off its coolant circuit A Switch off the main switch of the dryer the signal lamp power goes off Interrupt the mains supply so that the device cannot be switched on unin tentionally LU Clogged filters substantially reduce the amount of circulating air and lead to a production lag of your dryer Clogged filters may also damage the heating elements Maintenance 5 4 SM2 605 STT 110 STT 160 5 2 1 Cleaning or Replacing the Return Air Filter STT 110 STT 160 Detach the nut on the housing of the return air filter and remove the housing cover Air filter Remove the nut of the filter cartridge Remove the filter cartridge Clean the inside of the return air filter hous ing Use non fibrous cleaning cloths or an industrial type vacuum cleaner Blow compressed air from the inside out through the clogged filter cartridge or re place the filter cartridge Re install the cleaned new filter cartridge Mount the nut Install the lid of the return air filter housing Fix the nut STT 110 S
4. Rhe RirBRsObIFESQRSS6eE bbs dbbaw d 1 4 2 Safety instructions c oiooriorrcor or rh rh eee rh x hb b ee ee 2 1 2 lFor your Safety i usce od sie erg Rhe ban PbS 044 FEBR RA E Sis d erga 2 2 2 2 For the safety of the devices ees 2 5 3 Start Up 256 osse m RR AS AA ERREUR RR RUE UR RC RR eee Rc 3 1 3 1 Initial Operation 0 0 0 tees 3 2 3 1 1 Switching on the Dryer 2 ee 3 2 3 2 Continuous Operation peeo da aeris tinea i a tee 3 4 3 2 1 Switching the DIyer On 1 0 ees 3 4 3 2 2 Setting the Drying Temperature 1 0 0 2 0 eee 3 5 3 3 Switching the Dryer off 0 0 eee 3 7 4 Error and error correction 0c ee 4 1 5 Maintenance A eee ee eee Ree EE ERR RING RUE RR EUR ee ae 5 1 5 1 Maintenance schedule 20 0000 cee ee 5 3 5 2 Cleaning or Replacing the Air Filter 0 020 000 eee eee 5 4 5 2 1 Cleaning or Replacing the Return Air Filter 5 5 5 3 Disposing of Drying Agents 20 000 c eee 5 6 TP 5 6 D Sud queen were asa ners taa Ee UM 5 6 Des diode ded ted aede Sed shee dete b edit b do e dein Din hs et a 5 6 DIAS asus dedu een RENE OG eo OR d MER o E P MEE 5 6 rcc 5 6 DD ocu c t uU ces ee TS 5 6 D Ode vea d RIDERE RN eR EA ea ee eae ee tees 5 6 nr DIT 5 6 DO occu ne exequendis tu cuu Oa 5 6 5 4 Cleaning the Drying Hopper slssssssle eh 5 7 6 Functional description 00 cc
5. air cooler STT 110 STT 160 Assembly instructions 8 4 SM2 605 STT 110 STT 160 9 Technical Data 9 1 STT 110 amount of dehumidified air llle esses max 110 m3 h 3 8846 1 cf h operating voltage 200 see ae e leas kae a Res he 400 V 3 AC 50 Hz special voltages can be supplied on request connected load nasum au vans UR RR ab die Ra RR xe se he aes RR ae 3 2 kW calorific output drying MD max 9 0 kW depending on the equipment with hopper heaters calorific output regenerating lesse eh 2 4 kW driving power drying regenerating o oooooccoccccooo I 0 75 kW drying temperature i a Re A da E max 180 C 356 F WIKI Ss cuca niet uam ete EUG A ke RR Ra RE 900 mm 35 5 in nri T C P 666 mm 26 2 in NIGH ue a uere db pad ded odit bon Vu es dob yt ee 1320 mm 52 0 in Iu P da ed ae a eee m approx 180 kg 396 83 Ibs QUII m approx 66 dB A OPlIONS pH T timer clock cr dew point display PETITIO TRISTE DECR return air cooler Return Air Cooler water flow rate in the water mains network approx 0 35 m3 h 12 46cf h water temperature 6 C 42 8 F pipe CONNECHON ses vede e RP TRA pede deep obese eS T ER 1 2 0 5 in Technical Data 9 1 SM2 605 STT 110 STT 160 9 2 STT 160 amount of dehumidified air llle max 160 m3 h 5 650 35 cf h operating voltage issus see ee ea RR RR RUE RR 400 V 3 AC 50 Hz speci
6. running If the dryer has not been in use for several months it must be operated for LES about 2 hours without material Start up 3 2 SM2 605 STT 110 STT 160 Turn the release switches Hopper ST1 ST6 at I position Turn the thermo regulator to 80 C 176 F for the drying temperature Press the PGM key Set by means of the arrow keys the drying temperature to 80 After 2 seconds the display flashes and the value is stored Press the EXIT key the setpoint value and the actual value of the drying temperature are displayed After 2 hours turn the release switches Hopper ST1 ST6 at 0 position Turn the release switch Timer at position C A Wait until the blower has stopped The run on time of the blower is 10 minutes If there is a return air cooler installed switch off its coolant circuit Switch off the main switch of the dryer LU The signal lamp power goes off Start up 3 3 SM2 605 STT 110 STT 160 3 2 Continuous Operation Fill at least half of the drying hopper with material 3 2 1 Switching the Dryer on Switch on the main switch of the dryer LI The signal lamp power goes on For operation with timer clock optional Turn the release switch Timer at position For operation without timer clock Turn the release switch Timer at position LI The blower is running Start up 3 4 S
7. 0 O O STT 110 STT 160 Accessories 12 1 SM2 605 STT 110 STT 160 Basic setting thermo regulator This information is intended to be used only by Sterling service personnel and trained personnel authorized by Sterling Other persons are not permitted to modify or repair the equipment Settings if temperature is displayed in C Settings if temperature is displayed in F Code Code C111 0 0 0 0 C111 0 0 0 0 C112 2 0 0 0 C112 2 0 3 0 C113 0 5 3 4 C113 0 5 3 4 C114 1 0 0 1 C114 1 0 0 1 SPL 0 0 4 0 SPL 0 1 0 4 SPH 0 1 4 0 SPH 0 2 8 4 with return air cooler in use 0 1 8 O with return air cooler in use 0356 Parameter Parameter set 1 Parameter Parameter set 1 AL1 20 0 AL1 68 0 HYS1 1 HYS1 1 rASd 5 0 rASd 19 0 Accessories 12 2
8. 160 8 Assembly instructions These installation instructions are intended for persons with skills in electri cal and mechanical areas due to their training experience and received in structions Personnel using these installation instructions must be instructed in the reg ulations for the prevention of accidents the operating conditions and safety regulations and their implementation Ensure in each case that the personnel are informed The installation instructions provided in the corresponding operating instruc tions apply for all connected equipment Observe safety regulations with regard to lifting gear handling All installation work must be carried out with the equipment disconnected from electrical power and compressed air supply A For installation work taking place at heights of over approx 6 feet 1829 mm use only ladders or similar equipment and working platforms in tended for this purpose At greater heights the proper equipment for pro tection against falling must be worn Use only suitable lifting gear which is in proper working order and load suspension devices with sufficient carrying capacity Do not stand or work under suspended loads Use suitable workshop equipment Install the equipment such that all parts are easily accessible this facili ES tates maintenance and repair work Assembly instructions 8 1 SM2 605 STT 110 STT 160 8 1 Installation of the exhauster fan for regenerati
9. M2 605 STT 110 STT 160 3 2 2 Setting the Drying Temperature Turn the release switches Hopper ST1 ST2 at I position For each drying hopper set the required drying temperature desired value by means of the re spective thermo regulator Check whether the set drying temperature is appropriate for the materials which have been filled in Observe the instructions of the material manufacturer After the first filling process the material only after the retention period is over Observe the instructions of the material manufacturer Press the PGM key PGM By means of the arrow keys select the desired value for the drying temperature After 2 seconds the display flashes and the value is stored Press the EXIT key the setpoint value and the actual value of the drying temperature are displayed After a change of materials immediately check and correct the set drying LS temperature Start up 3 5 SM2 605 Optimizing the thermo regulator Press the EXIT key for at least 2 seconds tunE flashes The optimization can take several minutes If tunE stops flashing the optimization is finished Press the EXIT key STT 110 STT 160 EXIT XIT Start up 3 6 SM2 605 STT 110 STT 160 3 3 Switching the Dryer off Set the release switch Timer at position O A Wait until the blower has stopped The ru
10. SM2 605 Sterling Sterling Operating Instructions Dehumidified air dryer STT 110 STT 160 Sterling Material Processing SM2 605 Sterling Material Processing 5200 West Clinton Ave Milwaukee WI 53223 Telephone 414 354 0970 Fax 414 354 6421 www sterlco com Technical service Service department Telephone 800 423 3183 Edition 04 02 STT 110 STT 160 Please fill in personally Serial number These operating instructions are for Year of manufacture Date of delivery Number of delivery Date of commissioning Location Group of machines SM2 605 STT 110 STT 160 Sterling Material Processing retains all rights to change the information in these operating instructions at any time without notice We assume no liability for any errors or direct or indirect damage resulting in con text with these operating instructions Copying translation or publication in any form except for personal use of purcha ser requires approval from Sterling Material Processing All rights reserved SM2 605 STT 110 STT 160 Table of contents 1 General Information sereen nes tori mant ea a eee 1 1 1 1 Warnings and SyMbOlS ooococccco n 1 2 1 2 Explanations and information llle 1 4 1 9 Legal Da iacu ses tuo bns dre t ee ede aia ied a eq 1 4 1 4 Fields of applications liiis 1 4 1 5 Notes on USage sies shi s Eleshrg
11. TT 160 Never operate the dryer without return air filter Purchase order numbers return air filter when operating without return air cooler ID 88366 when operating with return air cooler ID 88628 Maintenance 5 5 SM2 605 STT 110 STT 160 5 3 Disposing of Drying Agents Please note that drying cells are replaced or refilled by Sterling only if they are empty When disposing of drying agents observe all official rules Since used drying agents may contain impurities from the dried materi als treat them as special waste It is not possible for Sterling to take back the used drying agent or drying cells with used drying agents 5 3 3 5 3 4 5 3 5 5 3 6 5 3 7 5 3 8 5 3 9 Maintenance 5 6 SM2 605 STT 110 STT 160 5 4 Cleaning the Drying Hopper Set the release switch Timer at position C A Wait until the blower has stopped The run on time of the blower is 10 minutes If there is a return air cooler installed switch off its coolant circuit A Switch off the main switch of the dryer the signal lamp power goes off Interrupt the mains supply so that the device cannot be switched on unin tentionally Clean the drying hopper each time you are changing the materials Make sure that the drying hopper has cooled down sufficiently Make sure that the drying hopper is completely empty Remove any granules remaining on the ground Maintenance 5 7 SM2 605
12. accessible Ground the equipment against electrostatic charging Regularly make sure that none of the electrical or screw connections are LS loose Make sure that the main switch is at O position before the electrical con nection is carried out The operating voltage is 480 3 60 Special voltages can be supplied on request The connected loads are STT TIO xcu atte x xb oem x e p a B UR P a RD HR t VA e a S approx 3 2 kW SIT 160 ots wage dem ate dest eB a erem as Feds noe approx 3 6 kW f hopper heaters are installed the value of each hopper heater must be added to these con nected loads max 9 0 kW The fuse protection must have 32 A Assembly instructions 8 3 SM2 605 STT 110 STT 160 8 4 Connection of Return Air Cooler Optional A return air cooler must be employed if the return air temperature is gt higher than 65 C 149 F You can connect the return air cooler to a coolant circuit or to the water mains network The water flow rate in the water mains network is for STT 110 tsa tac eave cev area aw avd aka eed awa oe approx 0 35 m3 h 12 46 cf h SANI cnr approx 0 48 m3 h 17 05 cf h water temperature 6 C 42 8 F Rate your coolant circuit accordingly Connect the coolant in and outlets to the return air cooler Observe the flowing direction of the coolant Check the tightness of the connections LO Connection of the return
13. al voltages can be supplied on request connected load cha e a HS AGT OP SIGs FA ES ER ERA 3 6 kW calorific value dei D taa iia max 9 0 kW depending on the equipment with hopper heaters calorific value regenerating sese max 2 4 kW driving power drying regenerating 0 II 1 1 kW drying temperature ooo max 180 C 356 F WIOII 3a nee she ica ud illo ta Uri KALI D Ur NN MILII Le ICE TL T AS 900 mm 35 46 in sli PTT 666 mm 26 2 in BEDNE racs iuste eru Da duque imde ud dare ate du eee 1320 mm 52 0 in Welght suus Rupee mue a EEE EEEE approx 195 kg 432 10 Ibs s MOBE he ied a eene pat dose d e E etr icu o dob rie dee eke approx 72 dB A DID PR ra A ls ET timer clock ne eee RA ES EE ERA dew point display WR return air cooler water flow rate in the water mains network approx 0 48 m3 h 17 05 cf h pipe connection sea ea m re RR nac Rhe hd Re Rue 1 2 0 5 in Technical Data 9 2 SM2 605 STT 110 STT 160 9 3 Dimension Sheet 900 35 43 l 666 26 22 1320 52 07 Dimensions and data without obligation Dimensions in mm in Specifications may be subject to alterations Technical Data 9 3 SM2 605 STT 110 STT 160 10 Spare parts list This spare parts list is intended to be used only by trained personnel Other persons are not permitted to modify or repair the equipment Spare parts list 10 1 SM2 605 STT 110 STT 160 Pos
14. ating instructions must be compiled by the operator of the equipment e Equipment foreman When several operating personnel work on one machine the equipment foreman coordinates the sequences The equipment foreman must be appointed by the operator e Trained personnel Trained personnel are persons who due to their training are authorized to carry out the required work 1 3 Legal basis See Manufacturer s Certificate resp Certificate of Conformity 1 4 Fields of applications For the drying of thermoplastic granules and regrind before processing in order to remove all re maining moisture from the granules both inside and out independent of climate or ambient air conditions 1 5 Notes on Usage e Experienced operators can begin directly with the chapter on Start up if the unit has been pro perly installed e lIftheunithas not been installed yet observe the instructions in the chapter on Assembly Instruc tions and Transport Assembly and Storage General Information 1 4 SM2 605 STT 110 STT 160 2 Safety instructions These safety instructions apply to all persons within the range of action of the equipment Please inform all persons within the range of action of the equipment of the direct and indirect hazards connected with the equipment These operating instructions are to be used by all persons assigned activi ties connected with the equipment Knowledge of the English language is p
15. ation Ensure in each case that the operating personnel are sufficiently informed Please inform all persons within the range of action of the equipment of the direct and indirect hazards connected with the equipment Please observe all safety regulations for the operation of lifting equipment Transport Assembly and Storage 7 1 SM2 605 STT 110 STT 160 7 1 Tansport and Packing Please ensure adequate carrying capacity of the lifting equipment Note that the dryer system is top heavy Risc of toppling The machine must not be tilted or laid on its side The equipment pass a rigorous operating test in the factory and are packed carefully to avoid transport damage Please check packing on delivery for transport damage The inlet and discharge flanges are sealed with plugs so that no dirt can enter during transport Plugs must be removed before assembly Packing materials should be disposed of according to environmental laws or reused The dryer or the compact unit is delivered on a pallet The dryer should only be moved by means of the appropriate lifting equipment e g a fork lift truck or a workshop crane Fasten the transport cables to the eyelets of the control cabinets Transport must be shock proofed and free from vibrations Transport Assembly and Storage 7 2 SM2 605 STT 110 STT 160 7 2 Assembly Please ensure adequate carrying capacity of the lifting equipment Check the carr
16. c eee 6 1 SM2 605 STT 110 STT 160 0 1 General Information 355 eme aber RESQUE e ne Yap 6 2 6 2 Drying Hopper Optional llis mh 6 5 6 2 1 Hopper Heater 0 000 6 6 6 3 Connection to a Pneumatic Conveying System Optional 6 7 6 4 Return Air Cooler Optional 0 0 0 0 ee eh 6 7 7 Transport Assembly and Storage ooocooccococcnr een nnn 7 1 7 1 Tansport and Packing 0 0 cece n 7 2 1 2 ASSOMDIY fe 22 5 644 weds bia whed whee peda dbs wht desi wedd essere da big 7 3 Li DIOS iaa VERE Vee Re tet sex ew eee X E ER e a da 7 3 8 Assembly instructions 0 0 ccc RR hh I un 8 1 8 1 Installation of the exhauster fan for regeneration of exhaust air 8 2 8 2 Grounding the equipment against electrostatic charging 8 2 8 3 Electrical Connection ooooooccooocc eh 8 3 8 4 Connection of Return Air Cooler Optional liess eee 8 4 9 Technical Data yer RR RE eee eee ee ee E eee ered Bog ee Rex eR RR EE 9 1 9 1 STT Wis can eek REIS AS 9 1 9 2 STT 160 cee eee xac race ex RR RU Rare dace ied 9 2 9 3 Dimension Sheet issued dsl io poi ior ia birria 9 3 10 Spare parts list ooo RR rrr Rm RR REIR RR RR RR RLRcR a 10 1 11 Electrical manual 2 o uni i n hr rh eee eee eee eee 11 1 O Connection diagram no O Currently not available will be delivered at a later date 12 Accessories i e like c e
17. e dee ded a p exc RR MERIT gc 12 1 O Basic setting thermo regulator Digital timer O El O SM2 605 STT 110 STT 160 1 General Information These operating instructions are addressed to all users of the device These operating instructions must be used by every person charged with work on the unit General Information 1 1 SM2 605 STT 110 STT 160 1 1 Warnings and symbols The following warnings and symbols are used in these operating instructions This symbol indicates danger to life Fatal or serious injury is possible if the corresponding instructions regulations or warnings are not observed This symbol indicates that serious injury is possible if the corresponding instructions regulations or warnings are not observed This symbol indicates that extensive damage to equipment is possible if the corresponding instructions regulations or warnings are not obser ved This symbol indicates information important for becoming familiar with the equipment i e technical correlations This symbol indicates that a technical term is explained at this point General Information 1 2 SM2 605 STT 110 STT 160 When disposing of drying agents batteries oil observe all official rules Caution High noise pollution For all work on the equipment hearing protection should be worn Avoids impairment of hearing Caution Danger of crushing Disconnect the eq
18. eir compact con struction they can be employed next to the processing machine drying hopper on the processing machine or with one or more drying hoppers as a movable facility compact facility The dryers work according to the dehumidified air principle i e the airis not only heated but also dehumidified before it flows through the drying hopper In this manner plastic granules can be dried down to a very small residual moisture content The drying temperature can be adjusted if necessary up to a maximum of 180 C 356 F up per limit Due to the heat that is released during water absorption in the drying cells the lower limit of the dehumidified air temperature is approx 60 C 140 F The drying takes place continuously i e there are no rest periods due to regeneration of the dry ing agent The dryer is rated for continuous operation The dryer may only be put into operation if the drying hopper is filled Functional description 6 2 SM2 605 STT 110 STT 160 All function sequences are fully automatic The dryer is equipped with two drying cells One drying cell is part of the drying cycle the other drying cell is regenerated simultaneously Part of the dehumidified air is used for regenerating the moist drying cell At the beginning of rege neration it is heated by the regeneration heater After the end of the heating period the drying cell is cooled off by means of dehumidified air After the swi
19. ent from mains supply before starting mainenance procedures to ensure that it cannot be switched on uninten tionally All compressed air pipes on the equipment should be depressurised be fore starting maintenance work Maintenance 5 1 SM2 605 STT 110 STT 160 Please observe the maintenance schedule Before starting maintenance work clean the equipment of oil fuel or lu bricant Ensure that materials and incidentals required for operation as well as spare parts are disposed of properly and in an environmentally sound manner Use only original Sterling spare parts Keep record of all maintenance and repair procedures Maintenance 5 2 SM2 605 STT 110 STT 160 5 1 Maintenance schedule Daily Weekly Every six months Annually Whenever the material is changed Check warning signs on equipment for good legibility and completeness Clean return air filters and casing depending on dust build up Check main switch for proper function Check the signal lamps for proper functioning Change return air filters depending on dust build up Clean air filter of the suction box All electrical and mechanical connections should be checked to see if they fit securely Dewpoint should be checked only by Sterling service personnel The drying hopper and suction box must be cleaned LI The service intervals refer to a 3 shift operation The given maintenance intervals are average values
20. er flow indicator STT 110 STT 160 Spare parts list 10 3 SM2 605 Operating unit STT 110 STT 160 Pos ID number 82368 82394 82393 82495 82494 82392 82495 26207 82395 82490 87454 85241 83646 Description main switch LED element green cap fixing adapter LED element white cap fixing adapter dew point display optional selector switch actuator contact element thermo regulator TT1 TT6 timer clock optional sealing Spare parts list 10 4 SM2 605 Control unit 86376 85675 95819 87440 83975 85275 88914 87933 83647 88907 99815 84982 84983 83624 84512 84511 84159 motor radiator 2 4 kW pull button contact element controller temperature limiter contactor power supply cut out terminal fuse relay holder relay terminal thermal breaker STT 110 thermal breaker STT 160 auxiliary switch STT 110 STT 160 Spare parts list 10 5 SM2 605 STT 110 STT 160 11 Electrical manual This electrical manual is intended to be used only by Sterling service person nel and trained personnel authorized by Sterling Other persons are not permitted to modify or repair the equipment O Connection diagram no O Currently not available will be delivered at a later date Electrical manual 11 1 SM2 605 12 Accessories O Basic setting thermo regulator Digital timer O Spare parts list Drying Hoppers ST 25 ST 640
21. n on time of the blower is 10 minutes If there is a return air cooler installed switch off its coolant circuit Switch off the main switch of the dryer LU The signal lamp power goes off Start up 3 7 SM2 605 STT 110 STT 160 4 Error and error correction This chapter is directed at the operators of the equipment This chapter assumes general skills in dealing with drying systems This chapter assumes that the start up description has been read and un derstood It should be ensured in each and every case that the operators have the rele vant skills Faults must be eliminated before the control system can again start oper ating An alarm is indicated by steady light of the signal lamp trouble When the fault has been eliminated the signal lamp trouble goes off Error and error correction 4 1 SM2 605 STT 110 STT 160 The following errors can lead to an alarm Blower The pressure of the blower is too low Check the blower Vacuum sensor defective Regeneration heater 1 The safety temperature limiter of the regeneration heater 1 has been activated Check the safety temperature limiter Sterling Service Regeneration heater 2 The safety temperature limiter of the regeneration heater 2 has been activated Check the safety temperature limiter Sterling Service Hopper heater The safety temperature limiter of the hopper heater has been activated Check the
22. ng This will prevent damage of material When drying plastics which emit gases dangerous for human health take care that the regenera tion exhaust air is disposed of without polluting the environment This will prevent danger to peo ple and material Maintenance Before starting maintenance work appoint a supervisor Inform the responsible personnel before maintenance work on the system is started Caution Danger of accidents Disconnect the equipment from mains supply before starting maintenance procedures to ensure that it cannot be switched on unintentionally Caution Danger of accidents All pipes hoses and screwed connections should be checked regularly for leaks and damage Any faults which arise should be corrected immediately Danger of accidents Depressurize all compressed air piping before starting maintenance work Danger of accidents The air filters should only be cleaned replaced when the the main switch is off and the blower has stopped This avoids injury and damage to equipment Any maintenance work on the equipment should only be started when the the main switch is off and the blower has stopped This avoids injury and damage to equipment Check the v belts of the blower only when the main switch is switched off and the blowers have stopped Caution Danger of accidents Open drying hoppers only if they are completely empty Danger of accidents Never open drying hoppers while the device is in operation Dange
23. on of exhaust air When plastics are being dried that release harmful gases during the drying process care must be taken that the regeneration exhaust air is disposed of in an environmentally sound way At the same time the throughput of the regeneration blower must not be altered It should be noted when assembling a disposal system e g an exhauster system that the regeneration exhaust air is very humid Thus condensation may form which must not under any circumstances return to the dryer 8 2 Grounding the equipment against electrostatic charging Considerable electrostatic charging may occur in the equipment during processing of the various materials For this reason all components must be sufficiently grounded see grounding bolt dryer A and drying hopper B Ensure that the regulations of the local electric supply company are observed Grounding the equipment Assembly instructions 8 2 SM2 605 STT 110 STT 160 8 3 Electrical Connection The electrical connection of the dryer and of the hopper heaters may only be carried through or assigned by Sterling service staff or by qualified staff au thorized by Sterling Other persons are not permitted to carry through the electrical connection Observe the rules of the local electricity board The main switch must be freely
24. r Injury through burns Open drying hoppers only if they have been cooled down sufficiently Danger Injury through burns Before starting maintenance work wait until the drying cells drying hoppers and air pipings have been cooled down sufficiently Avoid touching any of these parts Danger Injury through burns Remove any granules remaining on the ground Danger of accidents Arrest the wheels after installation if the dryer is mounted on a movable frame This will prevent danger to people and material Safety instructions 2 4 SM2 605 STT 110 STT 160 2 2 For the safety of the devices Never change settings without carefully assessing the consequences Use only original Sterling spare parts Observe the maintenance instructions Keep a record of all maintenance works and repairs Please note that electronic components can be damaged by static discharge Before initial operation and in regular intervals make sure that no electrical connections are loo se Never readjust sensors without exactly knowing their functions Please ensure that the permitted storage temperature lies between 0 and 55 C 32 to 131 F Please ensure that the permitted operation temperature lies between 0 and 45 C 32 to 113 F Check the direction of rotation of the blowers after the electrical connections have been made see rotational direction arrow Clean the drying hoppers before the first filling Note the instruction
25. r drying facility works best in combination with a pneumatic conveying system In this way your drying hopper will always be supp lied with sufficient material The facility will only take as much material as is required by the processing machines The refore the drying result will always be the same Sterling drying hoppers are equipped with a suitable flange for adding a Sterling pneuma tic conveyor Suction boxes with one or three suction tu bes can be supplied as well optional These suction boxes are developped specifically for this type of hopper The loading of the conveying line with materi al is adjusted by closing or by opening of the control cover A 6 4 Return Air Cooler Optional Suction box A return air cooler must be employed if the return air temperature is CS higher than 65 C 149 F A return air cooler improves the efficiency of the drying cells LI The lower the return air temperature the better the efficiency of the dry ing cells The return air cooler can be connected to a coolant circuit or to the water mains network Functional description 6 7 SM2 605 STT 110 STT 160 7 Transport Assembly and Storage This chapter is intended for all operating personnel of the equipment Personnel using these instructions must be instructed in the regulations for the prevention of accidents the operating conditions and safety regulations and their implement
26. rerequisite Ensure in each case that the operating personnel are familiar with the opera ting instructions and the function of the equipment Safety instructions 2 1 SM2 605 STT 110 STT 160 2 1 For your safety General The operating personnel of this equipment must be at least 16 years old Please read these operating instructions carefully before taking into operation for the first time Contact us should questions arise This avoids injury and damage to equipment These operating instructions must be kept available at all times at the place of operation of the equipment Improper operation results in danger of accidents Please note that for reasons of clarity not all conceivable cases regarding operation or mainten ance of the equipment can be covered in these operating instructions Please observe all safety instructions and warnings on the equipment This avoids injury and da mage to equipment All work on the equipment is to be carried out by persons whose qualifications are specified in the pertaining chapters of the operating instructions Improper operation results in danger of acci dents The proper working clothes are to be worn during any work on the equipment This avoids injury The local regulations and requirements pertaining to this equipment must be observed Disconnect electrical components from the mains supply before work is carried out on these com ponents Caution Danger to life through elect
27. rical shock Compile detailed operating instructions based on these Operating instructions for the sequence of procedures to be carried out on this equipment Improper operation results in danger of acci dents Observe that the control system is still under voltage even when the main switch is switched off Caution Danger to life through electrical shock Safety instructions 2 2 SM2 605 STT 110 STT 160 Assembly Compare the connected loads with those of the mains supply Danger of injury through electrical shock When using lifting gear please observe the pertaining regulations Caution Danger of accidents Do not modify add other equipment or change the design of the equipment without the approval of the manufacturer Caution Danger of accidents Attachments not supplied by Sterling must be manufactured in accordance with safety regulation EN 294 Danger of accidents The equipment may only be operated when all the associated components are properly connec ted up and in accordance with the relevant regulations This avoids injury and damage to equip ment Operate the device only if all its components are grounded Danger accident through electrical shock Please note for installation that the equipment is top heavy Danger exists that it may topple over Take care that the device is not standing on the mains cable This will prevent danger to people and material Operation Appoint an equipment foreman to be re
28. rs have the required experience Make sure that the main switch is at 0 position Check the drying hopper for cleanliness Check to see whether the adhesive film on the drying hopper has be re moved If there is a return air cooler switch on its coolant circuit If there is a timer clock optional adjust it Read the operating manual of the timer clock Check whether the release switch Timer and the release switches Hopper ST1 ST6 are at 0 position The signal lamp trouble may flash shortly while the valve block is chan ged Start up 3 1 SM2 605 STT 110 STT 160 3 1 Initial Operation Check whether the inlet of the drying hopper is closed by a blind lid or whether a conveyor unit optional is installed If not manufacture a suitable blind lid and install it on the inlet of the drying hopper or install the conveyor unit optional Attachments which are not supplied by Sterling must be manufactured Ce according to the safety regulation European Standard 294 Check whether the coolant circuit of the return air cooler is turned on if a return air cooler is instal led 3 1 1 Switching on the Dryer Switch on the main switch of the dryer LU The signal lamp power goes on For operation with timer clock optional 0 Turn the release switch Timer at position For operation without timer clock Turn the release switch Timer at position LU The blower is
29. s of the material manufacturer for the maximum drying temperature Note the drying instructions of the material manufacturer Take care that the drying hoppers are always completely filled and that the retention period is re spected if continual removal is taking place Note that too large amounts taken from the drying hopper lead to insufficient drying of the materi al Close the air stop valves of drying hoppers which are empty or have not been used Note down all data which you have entered into the control system The password is to be entrusted to authorised personnel only Please note that the temperature ofthe dryer heating system must always be set lower than that of the supplementary heaters When you dispose of drying agents observe all official rules Note that drying cells are replaced or refilled by Sterling only if they are empty The material level may not fall below 40 in the drying hopper when material is continuously re moved from the drying hopper but no material is continuously fed into the drying hopper batch drying Close the throttle valves Read the operating manuals of the connected devices Safety instructions 2 5 SM2 605 3 Start up STT 110 STT 160 This chapter is addressed to the operators of the machine This chapter assumes general skills with drying equipment This chapter assumes that the functional description has been read and un derstood It must be ensured that the operato
30. safety temperature limiter Sterling Service Error and error correction 4 2 SM2 605 STT 110 STT 160 5 Maintenance This chapter is intended for persons with skills in electrical and mechanical areas due to their training experience and received instructions Personnel using the instructions in this chapter must be instructed of the reg ulations for the prevention of accidents the operating conditions and safety regulations and their implementation Ensure in each case that the personnel are informed For maintenance work taking place at theights of over approx 1829 mm 6 ft use only ladders or similar equipment and working platforms intended for this purpose At greater heights the proper equipment for protection against falling must be worn Use only suitable lifting gear which is in proper working order and load sus pension devices with sufficient carrying capacity Do not stand or work under suspended loads Ensure that the electric motors switch cabinets are sufficiently protected against moisture Use suitable workshop equipment Before starting maintenance work appoint a supervisor Inform the responsible personnel before maintenance work on the system is started Never operate the equipment when partially dismantled Any maintenance and repair work NOT described here may only be carried out by Sterling service personnel or by specialised staff authorised by Colortronic A Disconnect the equipm
31. sponsible for the equipment Ensure that the operating personnel are provided detailed instruction in the operation of the equipment Improper operation results in danger of accidents When the main switch is switched off for reasons pertaining to safety it must be secured against unauthorized activation Caution Danger of accidents Repair work may be carried out by trained personnel only Caution Danger of accidents Never operate the equipment when partially dismantled Danger Limbs may be caught in machi nery Electric shock In case of malfunction shut down the equipment immediately Have malfunctions corrected im mediately Danger of accidents The machine is intended only for the drying of granulated plastics Any other or additional use is contrary to specifications This equipment is not suitable for food processing The safety instructions of the connected machines must be followed Please note that sound levels exceeding 85 db A may in the long term damage your health Use the appropriate ear muffs This avoids impairment of hearing Please note that the drying cells drying hoppers and air pipings grow hot during use Avoid tou ching any of these parts Danger Injury through burns Never operate the dryer without side panels Danger Limbs may be caught in machinery Injury through burns Safety instructions 2 3 SM2 605 STT 110 STT 160 Operate the dryer only if there is at least one drying hopper operati
32. st also be a continual addition of material into the drying hopper continuous drying process New moist material is conducted into the upper opening of the drying hopper and slowly reaches the material outlet at the lower end On its way from the upper to the lower end the material is dried down to the fi nal moisture content In order to guarantee a continuous drying process we recommend that you always keep the drying hopper filled completely STT 110 STT 160 Drying Hopper Functional description 6 5 SM2 605 6 2 1 Hopper Heater STT 110 STT 160 Each drying hopper has its own hopper heater The temperature of the dehumidified air is adjus ted by means of the thermo regulator The setting range is from 60 180 C The current tempe rature can be read off the digital display actual value The thermo regulator is factory programmed Nevertheless you have to set specific values which are dependent on the processed material Process display drying temperature Setpoint display drying temperature PGM key Selecting operating level or parameter selection 60 reducing setpoint value 180 e Ka Pem WV dh ExT N EXIT key Aborting the input increasing setpoint value Thermo regulator Functional description 6 6 SM2 605 STT 110 STT 160 6 3 Connection to a Pneumatic Conveying System Optional You
33. tch over time is reached the regenerated drying cell is included in the drying cycle and the cycle starts again Drying cell Regenerating heater Drying hopper Diaphragm Return air filter Blower Valve Drying heater Suction box OANODABRWN Functional diagram Functional description 6 3 SM2 605 STT 110 STT 160 A digital display of the current dew point temperature can be supplied as additional equipment As an option a timer clock can be supplied which switches the dryer on or off at preselected times Read the operating manual of the timer clock 1 release switch hopper ST1 ST6 2 dew point display optional 3 signal lamp power 4 signal lamp trouble 5 main switch 6 release switch Timer 7 timer clock optional 8 thermo regulator drying hopper ST1 ST6 Operating unit Functional description 6 4 SM2 605 6 2 Drying Hopper Optional The material is dried in the drying hopper The dehumidified air is conducted through the material in the drying hopper and takes up moisture Drying hoppers must have the appropriate dimensions for their specific use so that the desired final moisture content is reached When refilling a drying hopper the material must first be dried completely before material can be taken out for the first time If material is taken out continuously there mu
34. uipment from mains supply before starting mainenance procedures All compressed air pipes on the equipment should be depressurised before starting maintenance work Caution Danger of hot surface Before starting any work wait until all parts have been cooled down suffi ciently Avoid touching any of these parts Caution Danger of skidding Remove any granules remaining on the ground Caution Danger to life through electrical shock Observe that the control system is still under voltage even when the main switch is switched off A A A A A General Information 1 3 SM2 605 CTT 110 CTT 160 1 2 Explanations and information Various terms and designations are used in these operating instructions to ensure clarity There fore please note that the terms used in the text stand for the corresponding explanations listed be low e Equipment Equipment can mean an individual unit a machine or an installation e Operating personnel The operating personnel are persons operating the equipment on their own responsibility or ac cording to instructions e Operator The operator ofthe equipment production manager foreman etc is the person responsible for all production sequences The operator instructs the operating personnel of what is to be done e Operating instructions The operating instructions describe the interaction of the equipment production sequences or methods The oper
35. ying capacity of the point of installation particularly if installed on a platform The place selected for installation should be as free of vibrations as possible The main switch must be freely accessible Ground the equipment against electrostatic charging The machine must not be tilted or laid on its side Because of its compact construction the dryer can be installed directly beside the processing ma chine drying hopper on the processing machine or with one or more drying hoppers as a mov able facility compact facility Special foundations are not necessary for installation The dryer must be installed on a level surface and must not be exposed to excessive humidity The maximum permissible ambient temperature is 45 C 113 F To facilitate servicing the dryer should be installed in such a way that that itis accessible from 3 sides Make sure that the air filters can be changed without problems To conserve energy keep the distance between dryer hopper and processing machine as small as possible The wheels of the compact unit should be locked to ensure stable installation The foil should be removed from the drying hopper 7 3 Storage The control system may only be stored at temperatures from 0 to 55 C 32 to 131 F Between delivery and machine commissioning the equipment should be stored in a dry dust free and vibration free room Transport Assembly and Storage 7 3 SM2 605 STT 110 STT
Download Pdf Manuals
Related Search