SERVICE MANUAL FOR FF 1 - 3.2 AR MODELS
Contents
1. 6 Low or High pressure light on LP HP tripped I clean coil or replace fan motor if required Repair gas leak and regas system with correct gas charge ES Dirty condenser Too high too low ambient faulty sensor Liquid line reached 55 deg C or ambient lower Clean condenser rectify ambient conditions ventilation than 4 deg C 7 Time delay hi cond light on Replace faulty sensor Reamer motor RPM dropped by more than 7 Hertz lower than 45Hz Speed reducer reversed direction Check Hz Check motor capacitor replace if required Check ice blade spacing 0 3mm adjust if required Replace worn Ice cutting blade incorrect spacing I 9 Low rotation Hi Evap light on I bearings Worn bearings Replace speed reducer motor box Speed reducer faulty Replace speed reducer motor box Speed reducer low on oil Replace speed reducer motor box Speed reducer motor faulty Suction line out of evaporator failed to reach Check gas charge TX Valve liquid line solenoid valve I 1degC after 10 min from start up or reached Refrigeration not working rectify refrigeration problem 10 Low rotation Hi Evap light flashing I 30deg for a period of 5min Check water flow over evaporator Faulty sensor Replace faulty sensor I Check transformer timer relay and timer replace faulty parts as 11 No power on timer transformer Blown RD4 fuse required green LED off 16 Revised January 20122. Open the buzzer on Cancel start up delay function Cancel the test Select 1440RPM model un parameters factory Select sub zero ice machines Open the test ice full sensor parameters factory Eight bit DIP switches on the centre of the PC board Figure 3 1 are from left to right Override is when dip switch is in the on position The function of the first bit DIP switch Selects the starting up delay function When the first bit DIP switch is on the unit will start up with no delay This feature is used during maintenance of the ice machine When dip switch is in the off position the unit will have a five minute delay which is to ensure the sensor is clear of ice The function of the second and third bit DIP switch Select the ice full sensor to suit ice type To select sub zero machine ice full sensor both dip switch s 2 and 3 are in the on position The function of the fourth bit DIP switch DIP switch invalid The function of the fifth bit DIP switch Selects the models of the gear motor 1440 RPM when the dip switch is in the off position the location of switch has been set up at the factory the user should not be touched 26 Revised January 2012 The function of the sixth bit DIP switch Selects the buzzer alarm When the sixth bit DIP switch is in the on position the buzzer will alarm when a fault is triggered in contrast the buzzer is silent when the dip switch is in the off position The function
3. 1 without suitable ventilation 2 next to heat sources or 3 outdoors E To ensure ice quality a water filter should be installed in icemaker inlet water line Revised January 2012 3 Installation Procedures 1 2 3 4 5 6 7 8 Place the ice machine on appropriate ice storage bin and fix See figure 2 Ensure machine is level Connect water supply with a hose Connect the drains with sufficient fall Open the water supply stop cock Connect power to approved outlet Use a qualified service technician for installation See figure 3 for installation of split unit See figure 3 Figure 2 Water Supply Hose Main Power Ice Storage Bin Floor Waste 10 Revised January 2012 Operating Instructions 1 To start up After the machine has been installed as per instructions plug in and svvitch on The indicator light A the green light will come on Turn the On Off switch on the control box to On position turn the switch in a clockvvise direction and the machine vvill be on 5 minutes delay the fourth red light of the second rovv of the control box vvill be flashing After 5 minutes delay the machine vvill start 2 To stop the machine Turn off the Manual Off Auto switch on the control box and the machine will stop Each time you turn on the Manual Off Auto switch and start the machine the machine will begin to run automatically after 5 minutes delay A
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5. VI Electrical Information a GRANT Control Panel Control Panel on B400 Bin with Manual Off Auto switch fitted LOCATION T G T m Oo W gt Manual On Off switch on ITS system is located on Bin FUNCTION Green power light indicates power to machine when lit Red compressor failure indicates compressor overload tripped when lit Red light indicates high or low pressure trip when lit Emergency stop Push to stop machine twist clockwise to reset Green P C light indicates power to P C Board when lit Orange light indicates bin is full when lit Orange light ON indicates no water to machine Red light on indicates high condensing temperature Red light flashing indicates unit on 5 minute time delay before starting Red light on indicates low rotation speed fault Red light flashing indicates high evaporator fault suction line failed to reach 1 degree C for 10 min Or reached 30 degrees C for 5 min 17 Revised January 2012 b Electrical VViring Diagrams of the Scale Ice Machines FF 1 1 5 AR amp FF 1 2 5 AS fan fan YIITAMS TV TA YI1IMS PINOY Od 3 yojime dojs XSUS H3T u y leonpoa poods jo 107RJUOD DY LAM JOSSDAAMOD Jo j1031293u02 DY ZAM UZ XOSU8pUDI jo TOL UOVD jy SAM UR JOSUDPUOD jo 103293u0O9 Oy HAN EVZTILTIN KZ 6L 9LIN EZIN SHN Tr mn EMEAED EMIZARA MERA LO UB IISUIPUOI 10 AB AA euloulL LIN Ug tasuopuo s JOJ Aejat PUISUL CH K Wagas emul ela E OT J4o2npoaj pasds 1
6. Ice making PC board layout front figure 4 1 28 Revised January 2012 b Ice machine external indicator small board vviring diagram Rotating speed fault indicator evaporator Condenser fault indicator delay indicator Power Indicator Water shortage fault indicator Ice full fault indicator 5 Fault Indicator 0000909090900 c Ice making sensor wiring diagram Evaporator Condenser Temperature Temperature sensor sensor Motor sensor Plug Colour Red Red Ice Full sensor Water shortage sensor Yellow Wiring New Sensor Old Sensor OBYR BBGB r res F fr nol d oa au aw wey e q o n k e Ww 29 Revised January 2012 5 Ice full sensor sensitivity and DIP switch settings a Ice full sensor sensitivity settings Flake ice machine XB70 XB550 model 5 indicator Sub Zero machine PBO 4F A PB5OF A model 5 indicator b setup of ice full sensor sensitivity Ice full sensor sensitivity may diminish after a certain period of time At this time It can be adjusted by the ice full sensitivity resistor on the PC board Clockwise rotation will increase the number of lights ice full sensor sensitivity will increase accordingly Anti clockwise rotation will decrease sensitivity and decrease the number of lights The LED 1 next to the 8 dip switches is the sensitivity indicator when the LED is lit the bin is empty when the LED is off the bin is full 30 Revis
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8. The 5 indicators lights in the second row on the front panel of the control box monitor the following Note 1 Reasons for high condenser temperature faulty fan motor blocked condenser high ambient temperature damaged condenser faulty temperature sensor or P C board 2 Reasons for high evaporator temperature check refrigeration system faulty evaporator temperature sensor or P C board C The third red light in the first row H3 on the front panel of the control box will be on if the discharge pressure of the compressor is higher than the specified value factory set or if the suction pressure is lower than the specified value factory set Please identify causes and rectify before resetting the machine manually D In event of emergency push the Emergency Shutdown button to stop the machine 11 Revised January 2012 IV Operating Principles 1 Water Circulation System See figure 6 Water enters the machine through the float valve and into the water reservoir Water is then pumped to the water distributor by a water pump and then flows on to the inner surface of the evaporator It is cooled down gradually and forms ice The ice blades scrape the ice from the inner surface of the evaporator and it drops into the ice storage bin through the ice shute Some of the remaining water will flow back to the water reservoir Note a Water supply is monitored by a sensor If there is no water in the water reservoir or the water i
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10. Power indicat Ice Full indic Water shorta High condens temperature indicator Low speed hi evaporating t indicator Fuse for switch power Fuse a a me weg E b Ice making 24 Revised January 2012 c Ice full sensor sensitivity small board layout Fixed interface S2645t Adjusted resistance for Ice full sensor sensitivity R2 i CAN 1 RI 9 ENZ a Ice full sensor sensitivity adjustment indicator p D H p or CW Fixed interface Fixed interface 2 Fault Indicator C Green Power Indicator C Yellow Full ice fault indicator Solid C Yellow Water shortage indicator ON k Red Condensing temperature fault indicator solid light start up delay indicator flashing C Yellow low speed alarm indicator solid light evaporation temperature fault indicator flashing When the power frequency is lower than 45Hz more than five seconds all the indicator lights flash at the same time 25 Revised January 2012 3 Dip Svvitch a 8 bit DIP switch Attention Please press reset button before resetting DIP switch 1 ON Cancel starting up delay 2 3 ON Select sub zero ice machine s ice full sensor 4 OFF Not Used 5 OFF Select 1440RPM model 6 ON Turn on the buzzer Warning Please press reset button before resetting DIP switch Cancel the buzzer off ON ae Start up delay function on 2 3 4 5 B 7 B
11. Revised January 2012 S24 GRANT FF SERIES OF FLAKE ICE MACHINES COMPLETE UNIT SERVICE MANUAL FOR FF 1 3 2 AR MODELS 380v 415v 3 Phase 50Hz Refrigerant R404A Revised January 2012 Table of Contents O AAA Rano es ee A MOE REE LEE 4 ll Operation Conditions Performance Parameters 1 Conditions for Operation of FF Series Scale Ice Machine ssssessseensssssersssseeresssreressseeressseeressseeee 4 2 Diagrami tor ce Output ot Scale Ice MaEBIDB naa Da aa AD 5 3 Parameters of Scale Ice Machine aia ds 6 4 Working Pressure Ambient temperature 280 7 5 Retrigerant Charge entar VO ans ee ican VOS EUER VO ua a i 7 GADIME SION ETE D LL ULT 8 III Packing Transportation and Installation 1 Packing Transportinse and el ele ida 9 2 JInstallaTlo Mann 9 5 Installation PROGEQUTES kaaa end AA NA AN GA ANA AGANG 10 5 D bperatihis INSTKUCUONS shqua KALA AA KA ida 11 IV Operating Principles TANater Circulation Syste Mn 12 2166 level Control SY SECU a 12 St ET ele PL as kd e e 13 4 RC Board Controlling VSTEM unin 13 V Maintenance amp Trouble Shooting l Equipment MINA A A VOR VY A 14 2 Cleaning Procedures una nen v A PRSE NEN ean 15 3e ef eren 16 VI Electrica intormatl OM cm 17 a Control Panel zie uy k UU T TT 17 b Electrical Wiring Diagram of the Slice Ice Machine 18 c Timer control WIFIDE DISB elTe qute ne 23 Vil POG Board Explai
12. aintenance should be carried out at an interval of about one month O Clean the inside walls of the ice storage bin with detergent and warm water O Sanitize the bin surfaces internally then flush with warm water 6 Clean the external surfaces of the bin and ice machine with a soft cloth and stainless steel cleaner Cleaning the Condenser 6 Condenser coil should be checked and cleaned if required at monthly intervals C Regular cleaning 8 maintenance 6 monthly Qualified service personal only should carry out the following maintenance and checks Carry out correct isolation procedures prior to doing any of the following B Visually check for signs of oil leaks around the speed reducer gear box B Check and clean if necessary the condenser coil B Remove the speed reducer and check for play in the top bearing B Remove the 2 plastic top covers on the evaporator and check the following B Check the water distribution tray and distribution tubes for foreign materials and restrictions clean if required Remove the water distribution tray and check the ice blade top and bottom bearings for play replace if required Check bottom bearing for movement and or play replace if required Check bottom water catchment tray for signs of damage or cracks replace if required Check bottom evaporator water trough for foreign material clean if required Reassemble and check all bolts for tightness Check water strainer in inlet to the water reservoi
13. ant Charge 48008 53008 65008 100008 115008 150008 Note This may vary if machine parameters change Revised January 2012 6 Dimensions See figure 1 Figure 1 Viewed to P condenser size for split unit 1200x475x630 1200x475x630 1250x475x835 1400x475x835 1500x475x935 Revised January 2012 Packingj Transportation Storing and Installation 1 Packing Transportation and Storing The ice machine is packed in plyvvood Beware of collision vibration tilting inversion etc in transportation and storage Ice machine should be kept below 40C dry and well ventilated Before you begin Check your paperwork to determine the model received matches your order B After uncrating and removing all packing material inspect equipment for any shipping damage Check whether all connections water system refrigerant system etc electrical connections wires PC board etc and mechanical system are in good condition 2 Installation See figure 2 Electrical connections must comply with local standards and requirements on the rating plate of the machine B An isolation switch must be installed Constant water supply Pressure between 0 15 to 0 5 MPa and stop cock shall be supplied within 1 metre of the ice machine Suitable drainage point shall be within 1 metre of ice machine Two separate water drainage lines shall be required for draining the ice machine and the ice storage bin D The ice machine shall not be placed
14. ce Machine not running Povver supply turned off Check povver lead is plugged in and turned on Check circuit 1 Povver supply light is off breaker Rotate switch clockwise to reset Emergency button pressed Turn switch to Auto 2 PC Board light is off On Off or Man off Auto switch off Turn switch to Manual if PC Board light comes on then timer Still no PC Board Light I KATI I Machine off on timer requires adjusting or setting If PC Board power light still stays off check F1 fuse on PC Board Adjust bin full sensitivity via adjustment pot 5 LED bars on 5 3 Bin Full light is on but the bin is E E off Bin full sensor requires sensitivity adjusting I I empty I MD I Ifthe LED is on machine should be on time delay time delay Check bin full led in middle of PC Board is on light flashing If not on time delay replace PC Board Blocked water filter cartridge Replace water filter cartridge bypass cartridge to test 4 Water shortage light is ON I I Blocked water strainer at inlet operation Clean strainer Water float jammed or broken Repair or replace water float I Check compressor supply voltage compressor electrics 5 Compressor failure light on Compressor overload tripped Replace faulty components as required LP tripped check gas charge TX Valve Liquid line solenoid valve Replace faulty components as required I I HP tripped check condenser coil air flow condenser fan motor
15. de to the up position and turn the machine on Run the machine for the correct indicated time as per chemical manufactures directions usually 20 min During this time the machine will fault on high evaporator temp alarm 10 min delay and will require a reset to start the alarm delay over again Once the cleaning time has elapsed turn unit off and drain the water and flush the system 4 times Clean the bin and flush check the drain Drain the water from the water reservoir via rear drain tap Mix up and add sanitizer solution to the system turn unit back on Sanitize bin Follow the manufactures directions on the sanitization procedure After 10 min reset and wait another 10 min Once this time has elapsed turn the unit off and drain the water and flush the system 4 times Carry out correct isolation procedure and test unit for power loss Re connect the compressor overload or solenoid valve coil power Reset the delay timer dip switch no 1 of 8 back to the off position Down Clean the unit condenser and covers where fitted Turn the water back on to the machine Re energize the power and turn the machine on Check operation of unit Check Auto Off Man operation and time clock setting Check bin legs door and trolleys where applicable The above procedure takes approx 1 5 to 2 hrs depending on if is on a slope front bin or a Follett ITS 15 Revised January 2012 3 Trouble Shooting Symptom Possible Causes I
16. ed 15 Scraper must always be set at 0 3mm off evaporator shell use a set of feeler gauges 16 Incorrect ice thickness will trip speed sensor and cause shuddering 17 If gearbox scrapper shuddering occur water flow is too great and should be reduced and or TX valve may need adjusting 18 TX feed can be checked by ice formation on evaporator i e ice forming lines in evaporator increase TX feed 19 The core dryer fitted to the suction line has no core fitted the dryer is there for quality control at the factory and is removed after testing 34 Revised January 2012 X Service Bulletins Coast Distributors CD series VVater Filters Coast tip of the vveek Blocked vvater filter bypass If you need to bypass the water filter in an emergency you can carry out the following to get you out of trouble until you can replace the cartridge Isolate water to filter Remove filter cartridge Remove small O ring Re install filter cartridge Turn water back on E a AS s By caring out the above this bypasses the cartridge and allows water to flow to your machine NOTE return and replace the filter cartridge as soon as possible 35 Revised January 2012 VVater regulating valve If there is vvater dripping or flovving into the bin from under the evaporator check the vvater flovv over the evaporator Ball float adjustment under Water flow regulator valve To adjust the water flow so as not to overflow the drain ca
17. ed January 2012 Grant Timer vvith remote svvitch The Grant unit can be fitted with a remote switch and timer the function of this is twofold As the electrical control board is placed on the unit this can make access to the factory fitted svvitches difficult The remote switch allows the ON OFF AUTO switch to be placed in an easily accessible location such as when the unit is placed on a large ice bin or transport system i e Follet ITS or DEV The timer is designed to reduce the ice clumping found with storing scale type ice for long periods The theory is to supply only the ice needed for the demand an example would be Grant one ton FFE on a Follett DEV ice bin Customer requires 400 kg of ice at 7am and 200kg at 4pm Timer will require to be set from 10pm to 7am and 11am to 4pm Grant 1 ton FFE 1000kg 24hrs 41kg 1hr 400kg will require the unit to run for 10hours 200kg will require the unit to run for Shours Of course this is only an example and every application will vary but the principal is the same it will be up to the technician to consult with the customer and set timer to suit their needs With the timer set up correctly the machine will produce Ice on demand and prevent clumping of ice in the storage bin a Parts Identification Ciruit diagram y er Present time BF rh ON OFF posilion e LA Erw sa Manual switch terminal Power supply indicator Load terminal j P
18. gear motor drives the gearbox The output shaft of the gearbox drives the auger and vvater distributor at a speed of 2 rpm In case of vvrong rotation direction or low speed of the gear motor the sensor will send a signal to the P C board which will stop the machine Causes of the trouble should be identified and fault should be rectified before the machine is re started Press the Reset key or put the On Off switch at the OFF position first and then to ON position the machine will begin to work again normally 4 P C Board Control System please refer to figure 7 The P C board controls the whole operation of the machine according to signals sent by various sensors Water level Water level 69 Power display sensor circuit 1 Gi Bin Full Ice level sensor Ice level circuit 2 Gi Water level E High Condenser temperature Motor rotation Motor rotation sensor signal circuit 3 e rotation speed and temperature Evaporator temperature High Evaporator temperature sensor circuit 4 High temperature protection circuit 5 Compressor circuit 9 contactor Condenser temperature Low temperature protection SE Gear motor sensor circuit 6 Fan motor 69 Micro processor Figure 7 Notice There are 8 switches on the P C board Switch 1 if it is in ON position there will be no 5 minutes delay after start up if it is in OFF position there will be a 5 minute delay after start up The switch should be set at OFF positi
19. ion performance of FF series sub zero ice machines maintenance must be performed on a regular basis as per service manual section V Model description FFxxxAR model is a complete unit including refrigeration system ready for connection to power water and drainage The FFxxxAS is a split system comprising two components low side evaporator with control system and air cooled refrigeration condensing unit To be installed by qualified refrigeration technician only The FFxxxWR is a complete system with water cooled condenser ready to connect to water supply power and drainage and condenser water to be supplied by others 3 Parameters of Sub Zero Ice Machine Drain Inlet pipe Voltage Current Condensing Compressor pipe outsid V A Type HP outside e thread diamet er mm 5 Air cooled 3400 unit split unit split unit unit split unit 380V 5OHz 3N Ge split unit NO N LA N N O N N LA N ul N N N Es NI u N Ul Un NO N Ul Ko O unit 3 Air cooled split unit N Ul o Ul split unit N Revised January 2012 4 Working Pressure Ambient temperature 25 C RA04A Mode FFiAR FFiAS FF1 2AR FF1 2AS FF1 5AR FF1 5AS Discharge Pressure 1850Kpa 1850Kpa 1800Kpa 200Kpa 200Kpa 200Kpa x Moe FF2AR FF2AS FF2 5AR FF2 5AS FF3 2AR FF3 2AS FF32WR Discharge Pressure 1800Kpa 1800Kpa 1650Kpa 1550Kpa 200Kpa 200Kpa 200Kpa 200Kpa 5 Refrigerant Charge Refriger
20. jnpot iosso dnm ZH KEN s ns e zz u Aaonpaa paadg IN CEA ee ea te a Es dund 10314 ZW AossaAaduo ch 131894 291132919 3 DATRA PLOUALOS VA Buryeoiq osPUud 4103128704 X Tamod Toarjuo 193 osnj TUY LIAO DAJLA pIOUO OS oj OST cM damod dund 1912m 10 asny CO JH well N Y F a CT H t1 s pa mu ti IA B i asnj Vi SVZEdA S ulu 9 A 39 3 83S oui jo uie3der SULA eoLno914 Evaporator temperature sensor C Gear motor sensor Jd Condenser temperature sensor 7 gt Sensor level Water Ice level sensor 8808 0 21 Revised January 2012 FF 3 2 WR MALES VIV 971 1MS pJ3POq Jd 2314s dojs Auen ton u21IAMS KOTA 1donpau peeds jo 10JIRT UOD YY losseiduos jo 101IRJUOS DY dund 19784 BUL E NIALO jo 1032P1UuOO DY Ue AUL OOS JO dojonjue2 jy Ue Sut ooo 10 ABl ai jeuloul dumd 1032m Surjejnolio doj AVTIL vwy IossolIduo2 103 Aul2a quway I2O0Nnpai pasds doj Avjei uwaay dojedipul ddns damo dojeotpur uorj2unr u e npoy dojesiput uortjounj 9u sS Jnssa3 dossoiduoo jo 19 04JU0D9 suNnsssig 40320104d 2 npow a0oss3admo Aoonpea peads dund 1324 Jos SHA du dund lazem BUYJUJNDA I upi AUT loo 13 B8Y 21132013 BABA prouo os Bulyuvelq esegd 10320304 48AMOd 013000 103 95Ny4 Jamod sajesa ptot os toj asny A4eAod dund Lazes LO esnj m 9 3d Be N n 9 e 51 1 17 by AMT 44 KARA 257 e b ri li 2 TX EX EA FN TW EM EWN GE
21. machines The ice making system has a vertical static evaporator with a rotating auger The machine is equipped with a solid state PC board which controls and monitors the functionality of the ice machine indicating 1 Ice level 2 Water level 3 Motor and gearbox operation 4 Temperature of condenser 5 Level of refrigerant Il Operation Conditions Performance Parameters 1 Conditions for Operation of FF Scale Ice Machine Minimum Operating Maximum Operating Conditions Conditions Revised January 2012 2 Diagram for Ice Output of sub Zero Ice Machine FF1AR AS Ice output in 24 hrs kg 38 32 26 20 15 10 5 Water Temperature C FF1 5AR AS Ice output in 24 hrs kg 900 38 32 26 20 15 10 5 Water Temperature C FF2 5AR AS Ice output in 24 hrs kg 38 32 26 20 15 10 5 Water Temperature C Ambient temperature 0 Ice output in 24 hrs kg Ice output in 24 hrs kg Ambient temperature F Ice output in 24 hrs kg Ambient temperature F FF1 2AR AS 38 32 26 20 15 10 5 Water Temperature C FF2AR AS 200 38 32 26 20 15 10 5 Water Temperature C FF3 2AR AS 38 32 26 20 15 10 5 Water Temperature C Ambient temperature E Ambient temperature R Ambient temperature F Revised January 2012 Note Daily ice output is directly related to the air temperature at the condenser and inlet vvater temperature In order to keep optimum operat
22. ned WEE 24 CIRC UIE BO ARONA o EE 24 a Ice making machine PC Board layout back 24 b ice making external indicator small board layout 24 C Ice full sensor sensitivity small board layout a 25 EE eebe ee 25 Aa e T A 26 Revised January 2012 N E DIE DIP SWITCH oi 26 D 4 DIEDIP SWITED iade dida 27 Is Electrical Wiring DIBEPDWIuu NA AA Aa 28 a Ice machine PC Board wiring diagram eere 28 b Ice Machine external indicator small board wiring diagram 29 c Ice Making sensor wiring diagram r 29 5 ce Full Sensor sensitivity and DIP switch settings oseeseseessseesseeresrersseessrrrsserreses 30 ajFull sensor sensitivity S LUN EE 30 b Ice Full sensor sensitivity and adjustment method 30 VIII Timer SWItCD ose toria nn E E 31 SCHERER ee EN D Operating INSHUCHONS iud ns 31 akala ea NAA 32 IX Technical NOtBS na AA is 34 X Service Bulletins nak Bie ic Lae babe 35 Revised January 2012 l Overview Read this service manual carefully before installation troubleshooting and operation of this sub zero ice machine This Service Manual gives an introduction of operation conditions performance parameters installation troubleshooting and operating procedures of FF series sub zero ice
23. of the seventh bit DIP switch DIP switch is invalid The function of the eighth bit DIP switch Selects the test parameters testing the PC board design parameters at factory the switch has been set off at the factory b 4 bit DIP switch Warning Please press reset button before resetting DIP switch Factory Settings 1 ON Cancel low rotating speed protection 2 ON Cancel condensing temperature protection 3 ON Cancel evaporation temperature protection 4 ON Cancel ice full protection Turns on the low rotating speed fault Turns on the evaporating temperature protection protection Cancels the low rotating speed fault Cancels the evaporator temperature protection protection Turns on the condensing temperature Turns on the ice full protection protection Cancels the condensing temperature Cancels the ice full protection protection Four bit DIP switches on the center of the PC board Figure 3 2 are in order from left to right The function off the 4 dip switch s are to bypass any of the 4 sensors so the machine can continue to function until the fault is rectified When a bypass is activated the fault light for that sensor will continue to be activated until the fault is rectified and the unit is reset 27 Revised January 2012 4 Electrical vviring diagram a Ice machine PC board vviring diagram gt Condensing temperature sensor white Evaporating temperature Rotate speed sensor red
24. on for normal operation Switch 3 should be in OFF position DO NOT TOUCH Switch 6 in the On position provides an audible fault alarm see figure 8 Figure 8 WI Revised January 2012 V Maintenance 8 Trouble shooting 1 Equipment Maintenance Warning No cleaning or maintenance shall be carried out on the machine prior to carrying out correct isolation procedures to isolate the machine from the power and water supply Coast Distributors recommends the use of PPE when carrying out a service or maintenance on either the ITS BIN or Grant ice machine A Daily procedures For continued ice quality check the following 6 Nothing is allowed to be stored in the ice storage bin Always keep the bin door closed and the ice paddle clean 6 Check for ice clumping if clumping is present clear the ice or melt the ice with warm water To protect the machine from any damage please pay attention to the items stated below 6 Don t turn off the water supply when machine is operating Open close the storage bin door gently and never kick or jerk the door Never stack anything on the top of ice storage bin or ice machine and maintain minimum clearances for correct air circulation B Regular cleaning amp maintenance monthly Users should adopt a regular cleaning and maintenance program in accordance with the surrounding environmental conditions In order to ensure proper performance and sanitary condition the following regular m
25. r for dirt or foreign materials 14 Revised January 2012 2 Cleaning Procedures Suo LV Abe ue ie A k 13 14 15 16 17 18 19 20 21 22 23 24 25 26 21 28 29 30 31 32 Carry out correct isolation procedures and test unit for power loss Isolate the water supply to the machine Remove and replace the water filter cartridge and purge approx 4ltrs of water through filter Carry out visual inspection of the unit Remove the black top plastic cover on the evaporator Check condition of water distributor and tubes Check condition of plastic water pan at the bottom of evaporator Check water float operation and water level Adjust or replace if required Check water trough for foreign matter and clear if required Check water reservoir Check for any water leaks Isolate the refrigeration circuit so as no refrigeration of the evaporator occurs this can be done by either separating the compressor overload from the contactor all AR models jor isolating the power to the liquid line solenoid valve coil on all FFE models Drain the water from the water reservoir via the drain tap on rear of tank and measure water quantity This is to ascertain how much cleaning solution is required Make up correct amount of cleaning solution as per manufacturer s directions and empty solution into the water reservoir Re energize the power to the machine and set dip switch 1of 8 time delay overri
26. resent time 3 Revised January 2012 b Operating Instructions Before turning povver ON Check that your unit conforms to the operating voltage If the unit has not been in operation for a long period the battery may have discharged and may not vvork immediately Connect the unit and svvitch povver source on vvait for approximately ten minutes before setting the timer Full povver reserve is built up after approximately 72 hours 1 Setting the timer Set the setting pin between the desired times to the left or right of the dial Set the setting pin to the right of the dial ON position If the setting pin is set to the ON position continuously it will continue only for the number of setting pins x 15 minutes Set the setting pin to the right until a click is heard Set the setting pin to the left of the dial OFF position BA UT LETT THI GE 8 Li LIC f way ma ma y E I Set the setting pin as shown on the above the time chart is as follows 2 Adjust the present time Turn the dial until the index is on the current time 3 Set the manual switch Use this switch to select either ON or OFF in manual or ON OFF in the operation program Auto output is turned ON and OFF according to the set program Manual ON output is turned ON irrespective of the program Use this mode for test operation Manual OFF output is turned OFF irrespective of the program After comple
27. s too soft not containing mineral substances the P C board will stop the machine and the yellow light will indicate a lack of water b The water level has been factory set Do NOT adjust it If the water level requires adjusting this can be achieved by adjusting the valve in the water reservoir The correct level is 26mm from the bottom of the water distributor Gear box and Motor Figure 6 Water Distributor Water level H 26mm Refrigerant suction line ft a Es v 17 I cas ETI ei S ch Z r i qr Ey ap orator NS Man shaft Refrigerant Li quid line F bes ee ttt topes HIN he a Water outlet Lower dos beam m ZS Ice blade Drip Tray EI i vater inlet I Da S ba E ell Water reservoir P d j 11 Water pump urie r 2 Ice Level Control System There is a light operated ice level controller between the machine and the ice storage bin When the storage bin is full of ice the ice will break the light beam of the ice level photoelectric sensor and then the red LED in the center of P C board will be turned off The yellow light indicating ice full will be turned on after the light beam has been broken for a continuous period of time and stops the machine The light beam will be reset and the red light in the center of the P C board will be turned on if the ice is removed 12 Revised January 2012 3 The Gearbox This system includes a gear motor and gear box The
28. sny LOS a t ER m aagod BATA ptoue os Toy osn Za 3 2 h F a di 3 lt un S el dorod chand Joea 10 osny eau DB gt m sm oy D E o mE Q S ses un MG Su NG amp o NIN IL a LUS DL RER RI a li sang eL id ls o E uw d i imm ab o Ey E mz di y cl ua si Bed BAR A A AGAS pe ALLE i asnj Jd o e UE vi ae ti YVZ edd soutqoe JA 39 AVIS ay JO LUBISLIT SULITAA 891119913 20 Revised January 2012 FF 3 2 AS z 5 m YI1TAS ATTY TA M 5 IN sa o t yojims PAROG Dd 74 m i m m a c J C Yo tas dojs ADUOSIDUA cy re ao z O ES E Ki y y x 2 i G I s 5 e OJeonpea peeds 0 10j2e93uO02 jy TAM q hie m a o gt x T T 3 h JOSSAJ WOD JO 012 1U00 JY ZW o a Y A M fea a bia E e 2 o E zd ve v E c g 2 URJ IOSUODpUO2 JO LOJILIUOI NY EWN a Bh Pe aS k E o d o 3 5 5 vn o o T Kei p UB Josuopuooa JO 1oj2 e1u02 OV PWN z E E TM V xs m E lt te e 5 d x uei 1osuepuoo doj AFT94 euieu FIN gt 2 5 de t o d 5 IN Jesuepuoo 10 e al jemisyl e pe TIOSSMIAUIOS 103 Atert juuieur zi Ioonpoa poods 10 AV_ESA uuieur LM lfaj ja Pe fs Joc fx orte per por fx ex fest x cri taj adet foire taj ta r n ta fla Fl 101e21pu1t ddns Jemog LH AJOPRITPUL uorjounjgieu 2 NPOp ZH 40je231pur uorIiounj u a4nsse3g CH ENE Aoss aduoo Jo 12 011803 2 1N55313 I4 AE KP dvjosjord a
29. tchment tray adjust this valve slowly to regulate the water flow If the flow is too high the water overflows the drain tray If the flow is insufficient there will be little ice production 36 Revised January 2012 1800 688 590 Ph 02 9524 1234 Fax 02 9524 0968 Email sales coastdistributors com au VVeb vvvvvv coastdistributors com au COAST DISTRIBUTORS PTY LTD 2T
30. ting test operation set the manual switch to AUTO 92 Revised January 2012 c Specifications ias D Capacity AE 33 Revised January 2012 IX Technical Notes 1 All PC boards after November 2009 will be the bypass model which will allow all sensors to be bypassed for diagnostic purposes 2 All Grant ice machines up to 10 ton use the same PC board 3 All grant ice machines 10 ton and over use a PLC 4 All the old style PC boards have no bypass on any faults except by bridging using the correct ohm resister 5 Bin full sensor can be bypassed by bridging terminals 2 and 3 6 All sensors can be bypassed with the correct resister 7 Low temp sensor can be bypassed with a 10 ohm resister 8 High condenser temp sensor can be bypassed with a 91 ohm resister 9 Gear motor speed sensor cannot be bypassed 10 The square blue potentiometer on the PC board is to set adjust the sensitivity of the bin full sensor A correct setting is 5 lights on the small circuit card on the front of the board If the sensitivity is set to high the sensor can burn out 11 Speed sensor operates at 1440rpm with a 7 differential 12 Speed of the gearbox is governed by the hertz and should be checked on every installation 13 Hertz under 45 will cause low rotation fault 14 Phase fail control requires a voltage of not less than 380 or greater than 450 volts but can be set at 10 lower to get out of trouble but is not recommend
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