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3 Installing the Rapid Freeze Flaker - Catalog

1. 9 lotor cuts out on overload Electronic overload set too low but amps do not exceed nameplate F L A 49 Replace blade with stainless steel ice blade Repair or replace speed reducer Repair or replace speed reducer x Replace blade with new x stainless steel ice blade Readjust ice blade clearance see section 11 Service amp adjustment Repair or replace speed reducer output shaft Replace timer See Photo Eye problems page 61 2 Replace timer Adjust potentiometer clockwise 18 turn at a time 14 TroubleShooting Chart PROBLEM PROBABLE CAUSE REMEDY Improperly sized thermal Check ratings and install overloads properly sized overload heaters Motor burnt out speed Dull carbon steel ice blade Replace ice blade with reducer output shaft new stainless steel ice broken blade repair replace burnt out motor repair replace defectivespeed reducer x Electronic overload setting too Adjust potentiometer high counter clockwise Vs turn at a time Motor burnt out or off Ice storage bin was full of ice
2. Water Pumps Flaker Manufacture Date Replacement Water pumps for Freshwater ice flakers Start Date End Date 2000 Pound models 3000 pound models 4000 pound models 6000 pound models 0 07 86 2 07 86 01 91 E30Q1 E30Q1 E30Q1 E30Q1 01 91 07 94 E10Q1 E10Q1 E10Q1 E30Q1 07 94 present E10H32 E10H32 E10H32 E30Q1 2000 RLE amp 3000 RLE use replacement pump part E10H32 P pump with Molex plug installed replacement sump assm E10H31 E10H31 E10H31 E30H7 Float Valves Flaker Manufacture Date Replacement Water float valves for Freshwater ice flakers Start Date End Date 2000 Pound models 3000 pound models 4000 pound models 6000 pound models 0 07 86 20 1 20 1 20 1 20 1 07 86 01 91 50 18 50 18 50 18 50 18 01 91 07 94 E10H29 E10H29 E10H29 50 18 07 94 present E10H29 E10H29 E10H29 50 18 For more detailed information contact Howe customer service department with serial number Speed Reducer field replacement parts are no longer available Speed reducers can be sent into factory to be rebuilt See our website http www howecorp com speed_reducer htm or Contact Howe for information on rebuilding speed reducers SELECTIVE PURPOSE Manual Page 67 Models 51E 50 SOEAR 76 1 76 2 75 75EAR 101 2 101 2 100 100 FRESHWATER ICE FLAKERS CROSS SECTION SELECTIVE PURPOSE Manual Page 68 12
3. YIMOd 8 V STVNIWH31 V TIV1SNI 15014 VINOWIAY W31SAS NOVY V OL S QION310S ainon sv STVNIWH31 IWYS 01 YOLVINOSY 531535 AINO 5 30 13 VINOWAV S3nddv BOLVINDIY 3unss3ud gt Sn1v1S HOSS3HdWOO HOLINOW OL SIHON 9NILVOIONI 51 T3NVd TVNOLLdO LINN 0314405 AHO12V V O1 118 NOVY TVH1N39 V OL LON SI N3HM Le 27117153215 VINOWWV 5 1 SLOWSY TTV 4 v 727717153215 SusDv 13 31034 TV Nou vonddv 2 038 avonia o YOLOW SIH9n1 SNI1VOIGNI 2 T3Nvd 1 310N pru 12201 NOLLDSNNOD 13538 OvOTH3AO INYO aovao Y NO W3WIL 330 YOLOW 391 aunssaud BATWAGIONSIOS 4 pewa 13 995 0511022 13 31 SYJHLO A8 0318418 10 LINDY 123 02510 09
4. 8 8 NI 22222222222 N Wigs L S 2 X IXI SELECTIVE PURPOSE Manual Page 69 50 51 75 76 100 101 50EA SOEAR 75 75 100 100 8 Shaftsleeve _________ 9 _ Top ice blade 20 L 127271 207271 Nuts Bolts amp washers top ice blade 20 6 __ ___ 5 10 S o Bolts amp washers bottom ice blade __ 000 83065 Ice Blade Adjustment Gauge kit Set of five feeler gauges for 10 15 blade adjustment Ho Bottom squeegee bracket 00 Top bearing replacement kit includes bearing 2 seals shaft 50 10 254 sleeve E50K4 Bottom bearing replacement kit includes bearing 1 seal 50 11 26a shaft sleeve TABLE 4 Replacement Parts for Models Listed to Right Water pump 230 460 3 50 60 Water pump 220 230 1 50 60 6 Water pump 575 3 60 63 w Speed reducer 60 cycle Speed Reducer 50 Cycle SELECTIVE PURPOSE Manual Page 70 100 101 TABLE 4 Replacement Parts for Models Listed to Right 50 SOEAR 75EA 75 100 100EAR PART DESCRIPTION PART NUMBER Table 5 Electric Panel Parts amp Misc Part Description Complete control panel 2 light E20T4
5. 310w3au 7 1359 INYO 05 1 NO Av130 130 330 dWnd INYO 391 391 E aou vINOWWV 3unssaud zv 108 QION310S 13 0 1 06 1 022 YOLOW 05 6 08 1 BOR OR SW3H1O A8 i NOI193108d LINDUID 05 08 E TT Tod 12 3 02510 38 13 Maintenance Evaporator To keep the evaporator in peak performance the ice maker should be cleaned with an approved ice machine cleaner at least twice a year more often if water conditions cause mineral build up using an approved food grade ice machine cleaner The water pump is used to circulate ice machine cleaner through the system Refer to cleaning instructions below for complete cleaning instructions Ice Machine Cleaning Instructions An important part of ice maintenance is to clean it frequently so that the water passages are not clogged and the freezing surface is clear and free of scale caused by calcium and iron deposits Frequency of cleaning depends upon the quality of water In extreme hard water areas it may be necessary to clean the as often as every 2 m
6. 583 14 2 038 YOLOW 9 321 SLHON 9NLLVOIONI 2 1 53108 TVNIWH31 V T w fonora vis 122131 8715 383313 321 1931054 ATIVNH31NI 5031 0 0235 11 2 0 4 p 910 99 ATNO 38055384 WNO 01003105 4 yum eite V 20 926 05 1 092 022 YOLOW 20 oos 08 092 022 INYO t 03104408 yo NOI123108d ES E 001072 10 250 OS b 0P2 0Z22 36 ng Diagrams Ut Control Panel Wi 12 380 3 50 Control Panel Schematic E20T60 9E1 SM ON A8 JOYLNOD 06 1 022 1 09 6 086 06 6 08 1OH1NOO 321 SLOWSY 784 091073 935019 SI 193NNOOSIO YOLOW INYO 512 1 02 dW t 0351 51 EYI 41 8 ONY LON LINN ONLLV1OSI NV SI 32 9 SI N3HM
7. during power failure be set too high Adjust so it will trip upon overload condition before damaging gearbox motor or coupling i Repair speed reducer x peed Reducer output shaft Operating flaker for an Replace ice blade with broken motor burnt out extensive period of time with new Stainless steel blade or off on overload dull ice blade causing excessive also replace flexible chatter coupling Repair or replace speed reducer 51 15 Service amp Adjustment IMPORTANT SAFETY NOTICE his information is intended for use by individuals possessing adequate background in ectrical refrigeration and mechanical experience Any attempt to repair major equipment ay result in personal injury and or property damage The manufacturer or seller cannot be sponsible for the interpretation of this information nor can it assume any liability in nnection with its use IMPORTANT SAFETY NOTICE he control panel on this ice flaker may be powered by TWO SEPARATE power sources isconnect BOTH SOURCES prior to servicing this piece of equipment Failure to do this ay potentially cause an electrocution hazard WARNING nly technically qualified persons experienced and knowledgeable in the handling of pfrigerants and operation of refrigeration systems should perform the operations described is manual WARNING 52 15 Service amp Adjustment REPLACEMENT am
8. Ice flakes too small and vaporating temp too low because Install EPR and adjust too powdery condensing unit is oversized evaporating temperature between 5 F and 10 F 30 F to 35 F for seawater Ice chatters Dull carbon steel ice blade Replace ice blade with excessively does not run stainless steel blade smoothly Operation with excessive chatter may result in damage to speed reducer motor coupling and main bearings Excessive ice blade clearance Inspect and adjust ice blade clearances see section 11 service amp adjustment Worn main bearings and or shaft Replace bearings and or shaft if worn see section 11 service amp adjustment 00 much ice accumulation Ice deflector not properly Reposition ice deflector bottom water collecting positioned see section 11 service amp trough adjustment 00 much ice accumulation Ambient temperature too cold Install cartridge heaters in in bottom water collecting ribs flaker must be troughandin water ambient temperatures sump and excessive above 40 F build up on bottom 30 ribs Water temperature too cold Water temperature must be above 40 F Install water mixing valve to supply 60 F ideally water to ice flaker Ice in storage bin too wet Water level in sump set too high Adjust water float valve to
9. EE O W E Kapid freeze SERVICE MANUAL and parts catalog Selective Purpose Flake Ice Machines 2000 20000 Ib Seawater Models Howe Corporation 1650 N Elston Ave Chicago IL 60622 1530 www howecorp com E Mail howeinfo howecorp com TECHNICAL ASSISTANCE LINE 1 773 235 0200 REV 07 05 Notice This manual and all information contained herein are provided as is and are subject to change without notice Howe Corporation makes no warranty of any kind with regard to this manual including but not limited to the implied warranties of merchantability and fitness for a particular purpose Howe Corporation shall not be liable for any errors or for incidental or consequential damages in connection with the furnishing performance or use of this manual The information contained herein is applicable to the specified models current at the time of publication Some information in this manual will be of use to owners of older model machines The reader is cautioned that use of this manual with older equipment is at the user s risk Howe Corporation makes no warranty or guarantee explicit or implicit with regard to the use of this manual with equipment models outside the scope of this manual If in doubt of the scope of this manual contact Howe Corporation Howe Corporation 2005 All rights reserved Reproduction adaptation or translation of this manual is prohibited without prior written permission of Howe Corporation ex
10. Re install water distribution tubes Remove all tools from inside the machine and re attach the service access cover Remove lock out devise from the main power disconnect and turn on the main power Turn on the ice flaker switch you may need to press the overload reset button and check the squeegee to ensure that it touches the evaporator on the entire circumference of the freezing chamber If the squeegee loses contact with the evaporator surface at any point then shut down the machine repeating the above steps to readjust the squeegee a little closer REPLACEMENT amp ADJUSTMENT OF ICE CUTTER BLADE Ice blade setting clearance between extreme outboard tip of ice blade and evaporator freezing surface must be between 004 to 006 with evaporator at room temperature 1 locate exact position on evaporator freezing surface where the clearance between the tip of ice blade and freezing surface is the least This is accomplished with the use of a feeler gauge Check clearance at the top and bottom of the blade rotate the blade 60 degrees and recheck clearance Repeat this operation at a minimum of six points on the circumference of the evaporator in order to determine the point of least clearance accurately 2 With the ice blade rotated to the point of least clearance set gap between the ice blade and evaporator surface to between 004 and 006 at the top and bottom of the blade Tighten the blade mounting bolts and re check clearance
11. Water dripping into bin water overflows bottom maintain water level V4 with ice i collecting trough below water return trough 48 14 Trouble Shooting Chart PROBLEM Water overflowing top water _ distribution pan because 1 ater distribution tubes PROBABLE CAUSE REMEDY i Unplug all distribution tubes Water pump delivering t too much i water to pan One or more water distribution _ tubes broken Ice flaker not liaryesqag d down to Adjust water regulating valve ball valve located near water pump U Replace all defective water distribution tubes i See problem I bottom of freezing drum _DRIVE MOTOR rive motor amps too high Dull carbon steel ice blade cuts out on overload as soonasicestarts to freeze 777777 on drum Worn gear s in speed reducer Iotor amps too high reach Broken gear tooth in speed a peak reading at a certain position on the drum Dull carbon steel ice blade ce bis blade closer than 003 clearance at that position Woodruff key in speed reducer sheared on slow speed gear on Aotor runs and main shaft turns only when there is no ice on drum Motor does not start when a Defective off delay timer system is turned on 2 Defective bin level control i Motor does not shut off i i Defective off delay timer when system is turned off After normal time delay period
12. REPLACEMENT amp ADJUSTMENT of the WATER DISTRIBUTION TUBES Adjust lead tube bottom spout with 90 elbow so that the water is dispersed over the evaporator and it doesn t splash water over the ice deflector The side spouts are positioned so the ends of the tubes are approximately 74 away from the surface along the top edge of the evaporator When a tube or fitting is broken in the distribution pan the remaining fitting can be removed from the pan by using an Easy Out removal tool Once the broken piece is removed the replacement tube and fitting may be installed and adjusted REPLACEMENT OF DRIVE MOTOR Disconnect main power to the ice flaker Remove electric wiring cover on the drive motor Remove the power leads attached to terminals marked and Refer to exhibit 30 The drive motor is attached to the gearbox with 4 bolts through the motor mounting plate Remove the 4 bolts The motor may be removed by pulling it away from the gearbox There are no set screws or couplings the motor shaft fits directly into the hollow high speed input shaft on the speed reducer with key If old motor cannot be removed easily then locate 56 15 Service amp Adjustment two threaded holes on the motor mounting plate They will be on the horizontal center line one each side of the input shaft Insert one of the mounting bolts into each threaded hole so they push against the drive motor you may have to rotate
13. 12 RL 460 3 60 Control Panel Schematic 5009 Large Capacity Dual Circuit ON 1 2 09 1 02 dH 9 1 09 09 L 09 6 09 43 09 6 099 7 101 9 E3101 13NVd 321 HOSS3HdWOO 25 60053 18 10 9 1 3L0L 803 351321111 OV 009 SdWW 2 LY 031 8 53504 22 554 19 32 1438 203 350331111 IV A 009 SdWv 031 53503 22 55 12 104 035012 JYV 5123 02510 YOLOW dnd 9 YOLOW INYA N3HM S19V1NOO Y 63 35 NI 03 2 9 L SHOSS3HdWOO WOU 2 9 SALON Yyy NOLLO3NNOO TVNIWH31 M UNIS umma NMOO dWNd yossaudWo2 SS3Hd H2SIQH9IH 55344 10 MOT NOILONS MOT HOSS3HdWO2 a aunts NMOQ 8818 55384 10 NOLLONS VON 8085384 7 13838 0 0183 0 13538 INYO 13 31 0 1 NO AV130 W3WIL 0 340 YOLOW 391 31VILINI 391 3ATvA 01003105 ann anon V14 dH 9 1 09 09 YOLOW
14. 1381 09 09r YOLOW SY3HLO 8 0314405 1 LINDUID 5 LOSNNOOSIO 09 2 097 v 35 ing Diagrams Ut Control Panel Wi 12 220 1 50 Control Panel Schematic E20T40 RL 50 1122 2024 ON OMG 1081 02 9 08 1 082 SYOLOW 9 05 022 09 0 2 022 TANWd 1081NO9 321 310038 05 14 0 1023 LINN 310888 1 01 835913 391 ONLLOINNOD N3HM 48 LON 00 LINN 9NISN3QNOO NI 138 9 105 51282 9 9 4 SI 01083105 51 2 8 S TVNINH31 N33M138 V TIV1SNI 15084 WILSAS NIVY TVH1N32 V 01 321 6 01083105 GINON SV STVNIWd31 38055384 YF 531935 AINO SUINW14 VINOWAY 01 85311444 YOLVINOTY 38058389 9 NOLLVIWHO3NI Y04 ANO12V4 LOWLNOD SNLWLS 055284402 HOLINON S1H9I1 9 SI TANWd 9NISN30N03 013114405 012 3 01 118 NIVY V 01 03123 02 LON SI YINI N3HM 3 310 38 TIV
15. SUPERSEDES DCT 1992 H WE CORPURAT ION SIES SEAWATER LAND BASED SIESS SEAWATER SHIPBOARD REMOTE FREON ICE FLAKERS 10 MINIMUM FOR SERVICE SQUARE OPEN NES TU ICE BIN w SUCTION ACCUMULATOR WATER SUMP SIZES elo T ER aces 4 REFRIGERATION REQUIREMENT AT 30 F SUCT TEMP 80 F WATER TEMP DIMENSIONS BTU HR jie 2 12 6 SEAWATER MODEL INSTALLATION ASSEMBLY DRAWING 11EFS 21EFS AUGUST 1995 I ILS 97 SUPERSEDES DEC 1992 HOWE CORPORATION 11 5 16 5 5 FRESH WATER SHIPBOARD REMOTE FREON ICE FLAKERS 6 MINIMUM FOR SERVICE MOUNTING HOLE USE 1 27 SCREW CONNECTION REFRIGERATION REQUIREMENT MEN N MODEL DIMENSIONS SIZES 5 SUCT TEMP 80 F WATER TEMP SUCTIUN VATER Ds FAT el Te DE s D D PTT 8 a ses o 5 m 1608 m n or o LS S mm aers jor jos n e 86 A s 13 6 SEAWATER MODEL INSTALLATION ASSEMBLY DRAWING 51 5 AUGUST 1995 115 99 SUPERSEDES DEC 1992 HOWE CORPORATION SLEFS FRESH WATER SHIPBDARD REMOTE FREON ICE FLAKERS 10 MINIMUM FOR SERVICE SQUARE HOLE ICE BIN w HEAT EXCHANGER SUCTION ACCUMULATOR WATER SUMP REFRIGERATION REQUIREMENT
16. CONTROL PANEL WIRING DIAGRAMS 230 1 60 Wiring 460 3 60 Wiring 220 1 50 Wiring 380 3 50 Wiring Exhibit 35 MAINTENANCE Evaporator Cleaning Procedure Water Distribution Tubes Water Sump Ice Bin Drip Pan Lubrication Bearing amp Seals Exhibit 36 Speed Reducer Oil Change Low Temperature Oil Mechanical Cleaning Preventative Maintenance PM Maintenance Schedule IV 22 23 24 24 24 24 25 27 29 30 31 32 33 35 36 37 38 39 39 40 40 40 40 41 41 41 41 41 42 42 14 15 16 TROUBLESHOOTING CHART Photo Eye Control Module Ice Storage Freezing Drive Motor Speed Reducer SERVICE and ADJUSTMENT Warnings amp Safety Information Ice Deflector 2000 6000 model Ice Deflector 5 10 ton models Ice Deflector Scraper Squeegee amp Squeegee Wrapper Water Distribution Tubes Drive Motor Speed Reducer Flexible Coupling Speed Reducer Drive Motor amp coupling Main Bearings 10E 30E Main Bearings Large Capacity 51RL 101RL Ice Level Control Water Pump Float Valve Expansion Valve Replacement of Solenoid Valve Exhibit 37 Exhibit 38 Exhibit 39 Exhibit 40 GENUINE REPLACEMENT PARTS CATALOG 43 43 45 45 45 49 49 50 50 51 52 53 54 55 55 56 56 56 57 57 57 58 59 60 61 61 61 61 62 62 63 1 Introduction Strategic Vision The Rapid Freeze by Howe Flaker is backed by over 50 years of proven performance and innovation L
17. 45 4 4 37 ng Diagrams Ut Control Panel Wi 12 380 3 50 Control Panel Schematic 50014 Large Capacity Single Circuit ary ON 1O31NO2 dWnd 3AIHO 06 086 33AAOd 05 6 08 TANVd 1OHLINOO 39 SLOWSY 1 NOILLVHOdHOO V3 001 8 08 V3 001 V3 S V3 0S 78 101 14 92 14 19 3 92 4 19 STSGOW 3 403 035019 SI LOSNNOODSIO 612 1 02 dite LW 9 9351 SI 280 31 8 ONY LON OQ NI ONI1V1OSI NY SI 5 ONILVH3dO SI JHL N3HM YOLVINDSY 3unssaud 3ATvA QION310S INN AINON IHL 83AAOd TUM SIH1 8 STVNIWH31 N33AAL38 3HIM V TIVLSNI 1594 W31SAS VINOWINV TH LN32 V OL SIHL 9NLLO3NNOO N3HM 9 3ATwA QION310S INN AINON Sv STVNIW3J31 IWYS YOLVINGSY 38055384 3uHIM Giva 531835 AINO 543413 VINOWWY 01 Sariddv YOLVINOZY 305534 c 10 8 72 1 1553215 VINOWWY SLOWEY 101 9 21 1 S 53215 5 ILOWAY YOLOWN 321 S1H9I1 SNI1VOIGNI Z SVH 13NVd 4 S310N TVNIWH31
18. DIMENSIONS SIZES 5 SUCT TEMP 80 F WATER TEMP n o Pie oam COMPR cmee sue sers as ze a ar e e 14 6 SEAWATER MODEL INSTALLATION ASSEMBLY DRAWING 10 55 20 55 AUGUST 1995 SUPERSEDES 5 1992 HOWE CORPORATION 10 5 15ES 20ES SEAWATER LAND BASED 1 0ESS 1 SESS 20255 SEAWATER SHIP BOARD BARE FREON ICE FLAKERS 6 MINIMUM FOR SERVICE WATER PUMP MOUNTING HOLE VATER DRAIN CONNECTION SIZES SUCTION LIQUID COMPR DIMENSIONS aes ness 8 eree 15 REFRIGERATION REQUIREMENT AT 30 F SUCT TEMP 80 F WATER TEMP ues v m se LA nm isis p 4 mm Ce 11 5 55 6 SEAWATER MODEL INSTALLATION ASSEMBLY DRAWING 30ES 30ESS AUGUST 1995 ILS 56 30 5 SEAWATER LAND BASED 30ESS SEAWATER SHIP BOARD BARE FREON ICE FLAKERS 6 MINIMUM FOR SERVICE C WATER PUMP 2 s EB 5 5 REFRIGERATION DIMENSIDNS SIZES REQUIREMENT MODEL AT 30 F SUCT TEMP VATER 80 F WATER TEMP 16 6 SEAWATER MODEL INSTALLATION ASSEMBLY DRAWING 50ES 50ESS AUGUST 1995 ILS 56 HOWE CORPORATION SOES SEAWATER LAND BASED SOESS SEAWATER SHIPBOARD
19. Install suitable ice level on overload ice and flaker continued to operate control deflector broken or No ice level control or defective bent out of shape ice level control SPEED REDUCER 1 leaking between front of Worn high speed oil seal in speed Replace leaking high motor and motor reducer speed oil seals mounting flange Dil leaking evident on top Worn slow speed oil seal in speed Replace leaking slow offlexiblecoupling reducer speed oil seal peed reducer output shaft Woodruff key in speed reducer Repair speed reducer and and ice flaker main shaft sheared because readjust overload setting do not turn but motor runs electronic overload set too high woodruff key locks slow speed gear to output shaft Ice motor started while ice Install off delay timer in blade was frozen in stationary circuit see wiring position to freezing drum diagram or install New Control circuit has no off delay Rapid Freeze control timer or timer circuit is panel defective Repair speed reducer Control circuit has off delay timer Disconnect switch should but disconnect switch was used to stay on continuously start and stop ice flaker instead of except for servicing on off switches Install new Rapid Freeze control panel 50 14 Trouble Shooting Chart PROBLEM PROBABLE CAUSE REMEDY Repair speed reducer Ice blade frozen to evaporator Electronic overload
20. QION310S 3 6 Of Q 5 we 9 aou s V 4 2 eos 09 1 062 902 O YOLOW 11 57 91481 996 102 09 1 062 902 4 1 s n f E SYJHLO A8 0319418 i f f HONVHS 193NNOOSIQ NIVW H O9 LIOEZ 80Z 11 32 1 DEM ON A8 10 1 2 09 1 062 09 1 062 1 09 6 099 YAMOd 09 6 09 TANVd 1OH1NOO SLOWSY 714 271023 NOIL93NNOO 7VNIWH3L oway V 035019 SI LOANNOOSIG 3AIBQ N3HM 2 SLOWLNOD 2 INYA 30150 13838 7081N02 12 31 NIN 06 1 3 8 NO AVNJO yanl 9 330 WO10N INYA 321 31VILINI V0 LWY 340 NO HOLIMS 340 NO 9100 995 VINOWWY 70350 SI 689 41 8 LON LINN ONISNSONOD NI SI 92 9 38155384 5 lou eot SI N3HM QIO
21. 3 Motor Overload Light Amber light is on whenever the electronic overload opens to stop the drive motor amp pump 4 Overload reset button Normally open reset button resets overload circuit following overload condition Following items are on RC SCA amp SCW panels only 1 Compressor Run Light Green indicating light is on when the compressor contactor is energized 28 11 Electric Control Panel 2 Low Oil Pressure Failure light Red Indicating light is on when low oil pressure switch opens shutting down the compressor Light will stay on until pressure switch is manually reset 3 High Discharge Pressure Light Red indicating light is on when high discharge pressure switch opens shutting down the compressor Light will stay on until pressure switch is manually reset 4 Low Suction Pump down light Amber indicating light is on when ice flaker is off and low pressure switch is open to pump down and shut off the compressor 29 11 Electric Control Panel E20T48 CONTROL MODULE 20 48 control module is the main processor for the ice control panel It incorporates the timer functions control relay functions and overload relay functions Terminals 1 amp 2 24 VAC input power Terminal 3 Ice Flaker Run input signal all on off switches ice level controls and any special controls installed must be in this circuit Terminal 4 Overload reset input Normally Open momentary contact Term
22. NOTICE WATER SUPPLY amp FILTER CONNECTIONS Exhibit 3 PREPLTER zu WATER FILTER CARTRIOCES a TO WATER DOrSTRIBUTION PAN Pm WATER PUMP RECULATING VALVE OVERFLOW FITTING FLOAT VALVE ORAN WATER FITTNG 3 Installing the Rapid Freeze Flaker REFRIGERANT CHARGING Special Precautions To Be Observed When Charging Refrigeration Systems Only technically qualified persons trained and certified in the handling of refrigerant and operation of refrigeration systems should perform the operations described in this manual If a refrigeration system is being charged from refrigerant cylinders disconnect each cylinder when empty or when system is fully charged A gauge should be installed in the charging line to indicate the refrigerant cylinder pressure The cylinder may be considered empty of liquid R 22 refrigerant when the gauge pressure is 25 psi or less and there is no frost on the cylinder Close the refrigerant charging valve and cylinder valve before disconnecting the cylinder Loosen the union in the refrigerant line SLOWLY and CAREFULLY to relieve refrigerant pressure in the charging hose WARNING Never open charging valve allowing refrigerant to vent directly to atmosphere Refrigerant must be reclaimed through a recovery system WARNING Always store cylinders containing refrigerant in a cool place They should never be exposed to temperatures high
23. SMG Ag 1 2 09 1 02 dH9 L 09 09 3AIHQ 09 09p 09 09 TANVd 1OH1NOO 321 SLOWSY 1 8 14 00 3 101 15 94 3 92 15 19 13 14 STSGOW 310W3H 35043211111 2 A 009 Sdw 1v 83813 22 55 12 2 203 YO HOTA 3501331117 009 84107 031 538013 22 55 12 2 103 035012 JYV SLOANNOOSIC 3 INYO N3HM SLOVLNOO dW tW 38055384 110 38085384 S3H91IMS AL33VS 31 GINDN 330 1nHS LINN BLOWSY NI TOULNOD 1051 SI 282 S310N TVNIWH31 VY 105102 NIW 06 1 AV130 330 30150 13538 7 13538 INYO dWnd INYO zv70s V INWA GIONS 10S 6 ann anon 09 09 Q Q Q Mar ET Pu tu p 80304408 01 ej 193NNOOSI 09 099 n n n 34 ing D Ut Control Panel Wi
24. crescent wrench remove the water float valve fitting from the valve body Using a 13 16 socket a spark plug wrench works well remove the locking nut from the valve body you may need to hold the valve body to keep it from turning Remove the old valve and fibre washer Install new valve with fibre washer on the inside of the water sump tighten the locking nut with the socket The valve body should be held in place with the discharge port facing straight down Re install the float valve fitting Reattach water supply line Turn on water shut off valve and check for leaks at the compression fitting and at the float valve fitting The water level should be maintained just below the lower edge of the water return trough while the flaker is operating To adjust the operating level hold the float in one hand and push or pull on the brass shaft depending on whether the water level is too high or too low Watch the operation for a while to verify the water level If the water level is still not where it should be re adjust the float REPLACEMENT OF EXPANSION VALVE Pump down the ice flaker and evacuate refrigerant from the liquid line Carefully cut back the insulation on the suction line and remove the remote bulb The bulb is secured to the suction line with two straps Loosen and remove flare nuts on the expansion valve and remove the old valve Install the new valve and SELECTIVE PURPOSE Manual Page 61 15 Service amp Adjustment tie
25. into storage bin Humidity level in bin too high PROBABLE CAUSE Control module isolated contacts valve energized always will not open Lead tube splashing water off storage bin REMEDY Replace defective control module Adjust lead tube so that it doesn t splash water over the ice deflector Repair or replace drip because Improper amount of insulation on bin c Bin door left open U cont because usage too small FREEZING 2 superheat setting is 3 too high 45 Ice left in storage bin too long Keep bin door closed when not removing ice Remove All ice out of bin daily or Install clock timer to limit the time the flaker produces ice Match daily ice production with daily consumption Decrease superheat setting open valve 12 turn at a time until ice is harvested down to bottom of drum 14 TroubleShooting Chart PROBLEM Improper location of TXV bulb located at ice flaker suction outlet 5 Liquid line drier dirty Ice freezes and harvests Ice blade clearance too high top to bottom of drum but on side only Opposite side does not harvest carbon steel blades only 3 Main bearings worn Mis assembled top casting after bearing replacement freezes soft on entire length of drum ice flaker drive motor cuts out on overload a few minutes in accum
26. kit E10U42 K Photo Eye ice level control kit relay amp sensors with 20 cords amp Molex plug E20T73 Photo Eye ice level control kit relay amp sensors with 15 cords no Molex plug E20T73 L Photo Eye ice level control Power supply relay E20T68 Photo Eye ice level control relay base 5V013 Photo eye ice level sensor Emitter 20 cord with Molex plug E20T69 Photo eye ice level sensor receiver 20 cord with Molex plug E20T70 Photo eye ice level sensor Emitter 15 cord with no plug E20T69 15NP Photo eye ice level sensor receiver 15 cord with no plug E20T70 15NP Photo eye mounting Brackets Set of two E10U44 Green 230 VAC Amber 230 VAC Red 230 VAC Green 24 VAC Amber 24 VAC USDA bearing lubricant E20K6 Replacement water filter 1000 flakers only core inserts E10H56 Replacement water filter 2000 20 000 flakers 1 6 required depending on model Core inserts 10 57 SELECTIVE PURPOSE Manual Page 71 Table 6 Replacement Expansion Valves for Freshwater flakers Ice Flak R 404A R 22 MT Standard Balanced Port Standard Balanced Port Part 4 Part 4 Part 4 Part 4 1000 F5V18 F5V20 F5V17 F5V19 2000 10 23 E10V25 10 22 E10V24 3000 15 6 15 7 15 5 10 24 4000 E20V11 15 7 20 10 20 12 6000 E30V6 E30V7 E30V5 E20V12 10 000 E50V6 E50V6 E50V5 E50V7 15 000 E75V3 E75V5 E75V2 75 4 20 000 2 E50V6 2 E50V6 2 50 5 2 5 7
27. motor housing so the bolts can press against the mounting lugs on the motor making sure the bolts do not thread into the mounting lugs Turn both bolts until they are hand tight then turn each bolt 12 turn at a time alternately until the motor if free enough to remove by hand When installing the new motor place 1 4 key on the shaft lightly grease the surface of the motor shaft and insert in the hole on the high speed input shaft keeping the keyway aligned with the key When the motor is in place rotate it until the mounting lugs are aligned with the 4 mounting holes on the motor mounting plate on the speed reducer Insert a bolt in each hole and tighten Re attach the flexible power cable to the motor connect the power leads to terminals marked and check to insure the motor is wired for the correct power 115 230 for the correct rotation CCW Refer to wiring connections on the motor nameplate for the correct connections When the motor is reattached and connected turn on power and check operation Place an ammeter on the power line and check to insure the motor is drawing within the nameplate FLA REPLACEMENT OF SPEED REDUCER amp FLEXIBLE COUPLING Disconnect main power to the ice flaker Refer to exhibit 30 Remove the drive motor as described above remove 4 mounting bolts attaching the gearbox to the top aluminum casting The gearbox can then be lifted straight up The top part of the flexible
28. properly evacuated and charged with the Refrigerant identified on the ice Flaker label you may proceed with the check and adjust section The following checklist is provided as a reference of start up check out procedure This check list assumes the use of the Howe electronic control panel Checklist 1 Before power is turned open inlet water valve field supplied amp installed near the back of the Ice and check water level in sump The water level should be just below the return trough see below EXHIBIT 27 2 Make sure the On Off switch is in the Off position then turn on the main disconnect 3 Check voltage between line 1 and line 2 verify that it is within nameplate ratings 4 Turn the On Off switch ON Solenoid valve will click loudly and motor amp pump will start 5 As the drive motor amp water pump are energized water is delivered to the distribution pan located inside the evaporator 6 Looking down inside the evaporator through the hand hole access cover verify that the distribution pan water level is maintained at the half full point If it is too low then the water regulating valve needs to be opened slightly If the water level is too high then the regulating valve must be closed accordingly Continue opening or closing the adjustment valve until the water level is maintained at the proper level see below EXHIBIT 28 24 Start amp Adjust 7 After a few minute
29. refrigerant and operation of refrigeration systems should perform the operations described in this manual If a refrigeration system is being charged from refrigerant cylinders disconnect each cylinder when empty or when system is fully charged A gauge should be installed in the charging line to indicate the refrigerant cylinder pressure The cylinder may be considered empty of liquid R 22 refrigerant when the gauge pressure is 25 psi or less and there is no frost on the cylinder Close the refrigerant charging valve and cylinder valve before disconnecting the cylinder Loosen the union in the refrigerant line SLOWLY and CAREFULLY to relieve refrigerant pressure in the charging hose 1 Introduction WARNING Never open charging valve allowing refrigerant to vent directly to atmosphere Refrigerant must be reclaimed through a recovery system WARNING Always store cylinders containing refrigerant in a cool place They should never be exposed to temperatures higher than 125 F 52 C and should be stored and secured in a manner to prevent abnormal mechanical shocks Safety Symbols amp What They Mean Please read and understand this manual prior to installing or operating this Rapid Freeze Ice Flaker You must be completely familiar with the start up operation and service of this flaker BEFORE you attempt to start operate or adjust this piece of equipment These safety symbols will alert you to any special precautio
30. the bottom bearing first remove the bottom bearing cover and the old bearing plate 14 Now follow the same steps as were done for the top bearing steps 10 12 15 Install new bottom bearing plate replace bottom bearing cover 16 Insert the new or repaired shaft Running clearance between shaft and new bearing must be about 001 Shaft must rotate freely in bearing 17 Re position rubber insulating ring use adhesive if possible Re install top casting Make sure that the evaporator lugs are properly seated against shoulders machined in casting If steel spacers are found between evaporator lugs they should be re used in the same position These are required to obtain proper alignment Tighten the four mounting bolts evenly 18 Shaft must rotate freely by hand If shaft is tight it indicates that the top casting is off center 19 Install ice blade and adjust clearance to approximately 003 at closest point Refer to blade adjustment instructions 20 Re install bottom half of the flexible coupling 21 Re install speed reducer and motor 22 Re install stainless steel jacket 59 15 Service amp Adjustment REPLACEMENT OF MAIN BEARINGS 5 10 TON MODELS Bearing replacement on large capacity machines is accomplished without removing the shaft from the flaker 1 Turn ice flaker off and pump down until all ice is removed from the evaporator 2 Shut main disconnect off and lock out power 3 Remove speed reducer and drive motor fro
31. 0 RL Complete control panel 6 light E20T40 SCA Control Transformer 230 VAC primary 24 VAC secondary E20T31 Solid state control board E20T48 Overload reset button N O E20T23 On Off rocker switch E20T24 4 Pole Contactor 24 VAC coil for flaker drive motor E20T44 230VAC Single pole Double throw relay E20T45 Relay base socket for above E20T46 2 Amp Fuse 600 Volt 2 required E20T49 Fuse Holder 2 required E20T52 Disconnect Switch DSC1 20 53 Drive motor starter with overload M1 M1 DSC 20 54 Pump motor starter with overload M2 M2 DSC E20T55 10 Amp single pole circuit breaker CB1 E20T56 Red tight indicating lamp 2 LP1 LP2 E20T57 Green Oil tight indicating lamp LP3 E20T58 Oil tight On Off switch SW1 E20T59 Off delay timer TMR1 20 61 DPDT Mini Relay E20T62 Relay Socket Base for Timer Relay E20T63 Relay socket base for Mini Relay E20T64 Drive Motor Contactor with Overload Relay E20T54 Water Pump Contactor E20T72 Control Transformer 480 Pri 240 Sec 300VA E20T74 Ice Flaker initiate relay E20T62 Water pump run relay E20T62 Mini relay base E20T46 Off delay timer 5V012 timer base 5V013 3 amp fuse 600V CCMR 3 2 amp fuse 600 V CCMR 2 2 Amp fuse 250V KLDR 2 Fuse Holder E20T52 Photo eye ice level control Power module 230 VAC 10028 3 Photo eye level control E10U28 2 Photo eye ice level control emitter E10U28 1 Photo eye ice level control mounting bracket
32. 2 802 39V 14 SLOWSY 1 07102 NOIL VHOdHOO 0350 SI 682 41 8 LON OQ LINN 9NISN3ONOO NI 9NILVIYOSI NV SI 9 40 51 3NIHOVW N3HM 3ATVA QION310S INN 83AAOd SIHD 8 ONY STVNIWd31 N33AA138 V TIV1SNI LSM 4200 13 VINOWWY W31SAS XIVA 3 V OL 351 SIHL 9NLL23NNOO N3HM S 0103105 INN 010011 Sv STVNIWH31 3WVS O1 YOLVINOSY v3 831838 AINO 544 13 321 VINOWWY 01 531144 YOLVINOSY v 801 15 HOSS3HdWOO YOLINOW 01 51 9 SNI1VOIGNI TVNOLLIQOV 1 SI T3NVd TVNO11dO NV NVH1 03119905 12 3 V OL 119 NOVY V 01 03123 02 LON SI 839V713 N3HM VINOWWV Tiy NO334 Su3xv14 Nou vonddv 038 Qvo 183AO YOLOW S1H9I1 9NILVOIONI SVH 1 SILON 57 LOL 2146 n 5 LON OQ 10312310844 Sava1 35 BL p A VINOWWV zi 27 M v S OU ses 38055384
33. BARE FREON ICE FLAKERS 10 MINIMUM FOR SERVICE MOUNTING HOLE MOUNTING HOLE WATER PUMP WATER SUMP CONNECTION REFRIGERATION DIMENSIONS REQUIREMENT 17 6 SEAWATER MODEL INSTALLATION WIRING amp ELECTRICAL CONNECTIONS CAUTION ELECTRICAL WIRING SHOULD BE PERFORMED BY QUALIFIED TECHNICIANS FOLLOWING LOCAL ELECTRICAL CODES CAUTION All internal wiring on the remote model seawater ice flakers between the control panel and components are pre wired at the factory Wiring between the remote ice flaker and remote condensing unit is not factory wired and will need to be wired in the field 1 Install disconnect not supplied by factory connect to terminals L amp L in the control panel Install a remote on off switch optional and wire to the ice flaker panel terminals marked ON OFF SWITCH as shown Remove wire Jumper before wiring switch When connecting to dedicated condensing unit wire CR3 relay in condensing unit control panel with a normally open contact wired back to the flaker panel between terminal Line A and terminal Line B See electrical diagram for exact wiring When connecting to a central refrigeration system a wire jumper is installed between Line amp Line The reason for the CR3 relay is to allow the solenoid valve to de energize when the compressor safeties open preventing liquid migration back to the compres
34. ELS SUPPLIED BY HOWE ORDERED AS AN OPTION WITH THE MACHINES Bare Machines Components amp functions Panel Layout motor contactor photo eye control E20T25 control 1 control module trans Jip lag 11612 remote optional power on off switch 1 Motor Contactor Provides power to the drive motor amp water pump Energized during freezing and pump down cycle then timed off for shut down Auxiliary contact provides power to the liquid solenoid valve when contactor is energized 2 Control Transformer Provides 24 Volt control power to control panel components Control module motor contactor and indicating lights 3 Control Module E20T48 Main control processor incorporates motor overload operating circuit off delay circuit Controls motor contactor and solenoid valve power 4 Photo Eye power Module processes signals from electronic eye level control has built in time delays Shuts machine off when 27 11 Electric Control Panel ice bin is full to prevent damage to the flaker from ice backing up into the evaporator section 5 L1 L2 L3 Terminals Main power terminals for field wiring electric power to control panel Single phase units standard wired to L1 amp L2 Three phase units special wired to L1 L2 amp L3 6 T1 T2 T3 Terminals Terminals for field wiring RL mod
35. IT 40 Drive Motor Speed Reducer Flexible Coupling 58 15 Service amp Adjustment REPLACEMENT OF MAIN BEARINGS 2000 6000 Ib MODELS 1 Remove motor and speed reducer by taking out the 4 3 8 cap screws from the top aluminum casting 2 Remove the lower half of the flexible coupling 3 Remove rivets which retain the outer stainless steel jacket around the ice flaker Push the stainless jacket away from the body of the ice flaker 4 Cut away at the upper 3 inches of insulation uncovering 4 3 8 cap screws which bolt the upper aluminum casting to the evaporator S Using a rubber mallet gently tap the aluminum casting from below upwards to free it from the evaporator Adhesive is used to retain the rubber insulating ring in place 6 Lift up on the aluminum casting and slide it off the shaft 7 Loosen rubber squeegee mounting bolts and push squeegee away from the evaporator surface 8 Lift the shaft assembly out of the evaporator Be careful to avoid scratching evaporator freezing surface with the ice blade 9 Examine shaft journals for wear If worn repair or replace shaft 10 Remove old oil seals in upper casting 11 Drive out bearing in upper casting using a drift pin or properly sized wood block Note To avoid distortion of casting it should be supported near the bearing area and not on the outer edge 12 Drive new bearing into position Then press the new oil seals into position 13 To remove
36. N310S 010011 YIMOd 1 ONY STYNIWH31 N33M138 W3dWhf V TIV1SNI 18 13 VINOWWV W31SAS Q31v139ni433 83 1 V OL 321 N3HM 5 3ATVA 0ION310S INN ONON SV STVNIWH3 L IWYS YOLYINDIY 38085384 IAIM YVI 831438 AINO 544 13 32 VINOWWY 01 S3riddv u01v1n939 3unss3ud SNLVLS HOLINOW SNI1VOIGNI SI 13NVd TVNOLLdO NV 9NISN3ONOO 0314405 012 3 V 01 108 NOVY TVH1N3 01 03193NNOO LON SI 83XV13 N3HM 1 1537275 VINOWWY 3LOWSH 16321721 115325 583 14 Wg INWA 0I0N310S anon 33 ing 460 3 60 WIRING E20T47 Ut NOLLYOM dav 2 038 YOLOW 391 51 91 SVH T3NVd 1 V 5310 9 13 10 995 YOLOW 40114 Control Panel Wi 12 3 10 9102 YOLOW INYO O Q Tey 4 k swauoAgo3ndans P F P i LINDUIDHONVUS 727727 9 LO3NNOOSIQ NIV i 09 09 ing Diagrams Ut Control Panel Wi 12 460 3 60 Control Panel Schematic E50U8 RL Single Circuit Large Capacity ON
37. NGTH OF THE EVAPORATOR WAIT 5 10 MINUTES BETWEEN EACH ADJUSTMENT SPECIAL NOTE REPLACEMENT OF SOLENOID VALVE SPECIAL NOTE On flakers SUPPLIED WITH HOWE CONTROL PANELS that are connected to a central refrigeration rack system a jumper wire must be placed between terminal Line and terminal This jumper will allow the solenoid valve to energize when the operating circuit is energized SPECIAL NOTE SELECTIVE PURPOSE Manual Page 62 Pump down the ice and evacuate refrigerant from the liquid line Turn off main power to flaker disconnect wires leads from solenoid valve and remove armored cable Loosen and remove flare nuts or unsolder on the solenoid valve and remove the old valve Install the new valve and tighten the flare nuts or re solder CAUTION ARROW ON THE SOLENOID VALVE MUST POINT IN DIRECTION OF FLOW TOWARDS ICE FLAKER CAUTION Using a high quality vacuum pump evacuate the liquid line to remove any moisture that may have entered the system while the line was open to atmosphere Re connect armored cable and solenoid wires Turn on main power turn on ice flaker switch and check operation of solenoid valve SELECTIVE PURPOSE Manual Page 63 HOWE Revised July 2005 Description Cross section drawing for 2000 6000 pound ice flaker Repement parts for 2000 6000 pound ice machines Cross section drawing for 5 10 ton i
38. Refrigeration Requirement SEAWATER ICE FLAKER Units Seawater Temperature MODEL No 50 F 10 C 60 F 15 6 70 21 1 80 F 26 7 BTU hr 14 000 15 000 16 000 17 000 Kcal hr 3 530 3 780 4 030 4 285 BTU hr 21 000 22 500 24 000 25 500 aie OPS O Kcal hr 5 295 5 670 6 025 6 428 BTU hr 28 000 30 000 32 000 34 000 A E Kcal hr 7 060 7 560 8 060 8 570 SELECTIVE PURPOSE Manual Page 72
39. age 66 2000 10 11E 3000 15 16E 4000 20 21 6000 30E 31E TABLE 3 Replacement Parts for Models Listed to Right 10EA IOEAR 15 15 20EA 20EAR 30EA 30EAR 11 5 11 88 16 5 16255 21 5 21 55 31ES 31ESS PART DESCRIPTION PART NUMBER Water pump 230 1 60 E10H32 T Water pump 230 1 60 With Molex plug for RLE E10H32 P models only Water pump retrofit kit 2005 Drive motor 110 220 1 50 Drive motor 208 230 460 3 50 60 20 2 Drive motor 230 1 60 TEFC for seawater 1 3 V hp 63 Flexible coupling complete for use with gearbox E20N10 Flexible coupling for gearmotor mons J J Gearmotor for RLE model 60Cycle Gearmotor forRLEmodeD 50Cycle o ________ adaptor plate _ _ J 68 Speed reducer 60cy 920 MDVD 7501 6 for 50 920 MDVD 6001 EIORS 60 926 6001 CORA 50 926 4501 COR Replacement rib heater element 3 HT150 240 RLE Speed Reducer oil natural SR OIL Speed Reducer oil synthetic SR OIL SYN To help determine which ice flaker water float valve amp water pump you need use the following tables
40. ass e 21 wemmpman 1251 Typically every 3 6 months In areas with poor water quality possibly as often as every month With good quality water cleaning may be required only once a year parts to check for damage ice deflector ice deflector scraper squeegee amp wrapper water distribution tubes and float valve 42 14 Trouble Shooting Chart PROBLEM PROBABLE CAUSE REMEDY Tee maker is NOT Photo eye not installed Install photo eye control shutting off when binis full and signal light on Output relay on power module is Power module defective photo eye module is not transferring replace module Transmitter receiver defective Replace defective eye see trouble shooting on page 34 Transmitter or receiver lens 1 8 Clean dirty lens dirty Signal light on photo eye i module is flashing slowly U Re align eyes so the signal light will flicker at a quick pace the stronger the signal the quicker the LED flashes Transmitter and receiver eyes out of alignment Ice maker will not start Power module output will not Insert jumper between and signal light on power module IS flickering quickly close after 15 sec delay terminals 4 and 6 on the module base If mac
41. ce flaker Replacement parts for 5 10 ton ice machines Replacement parts for electric control panel amp misc Accessories Replacement Expansion Valves Please have model number and serial number of flaker ready when ordering replacement parts Howe Corporation e 1650 N Elston Ave e Chicago IL 60622 Tel 773 235 0200 e Fax 773 235 0269 E mail howeinfo howecorp com Website www howecorp com SELECTIVE PURPOSE Manual Page 64 CROSS SECTION Models 2000 10 10 11 5 11 55 3000 15 15 30EAR 31 5 31ESS ICE FLAKERS 16ES 16ESS 4000 20EA 20EAR 21ES 21ESS 6000 30EA 39 47 49 50 8 84846 02222222272 N N Annn SA B 7 T 22 72 SELECTIVE PURPOSE Manual Page 65 80 16 TABLE 3 Replacement Parts for Models Listed to Right PART DESCRIPTION PART NUMBER 2000 10 11E 3000 15 16E 4000 20 21 6000 30 31E 10 IOEAR 15 15 20EA 20EAR 30EA 30 11 5 11 55 16ES 16ESS 21 5 21 55 31 5 3IESS 2014 9 _ Ice Blade 82 L 12 L 20 L 9a bolts amp washers Blade 5 2066 E305 Set of five feeler gauges for ice blade adjustment E20G5 Squeegee L 12 27 L 20 7 L 20 1 E20K3 E20K4 Water distribution side spout amp fitting N A F
42. cept as allowed under the copyright laws Howe Corporation 1650 North Elston Avenue Chicago IL 60622 Phone 773 235 0200 Fax 773 235 0269 e mail howeinfo howecorp com web www howecorp com Revision date October 2005 Table of Contents Section 1 3 6 8 INTRODUCTION Strategic Vision Rapid Freeze Energy Efficiency Important Safety Information Safety Symbols and their meanings INSTALLING THE RAPID FREEZE FLAKER Installation Conditions Installation Without Ice Bin Installation On Ice Bin Recommended Installation Method On Ice Bin Exhibit 2 Water Supply amp Filter Connections Exhibit 3 Refrigerant Charging SEAWATER MODEL INSTALLATION Assembly Drawing 11ESS 51ESS Wiring amp Connections Freon Pipe Line Sizes Table 4 Freon Piping ACCESSORIES Electric Eye Ice Level Control Exhibit 23 Why Ice Bin Thermostats Are Not Used Rib Heating Elements Factory Mounted Field Mounted Installed Page 10 17 18 18 18 20 21 21 21 21 IV 9 10 11 12 13 Rapid Freeze Manual Information HOW THE RAPID FREEZE FLAKER OPERATES Ice Flaker Cut Away Exhibit 26 The Inside Story START ADJUST Checklist Sump Assembly Water Level Exhibit 27 Distribution Pan Water Level Exhibit 28 Expansion Valve Exhibit 29 ELECTRIC CONTROL PANEL Components amp Functions Exhibit 30 E20T48 Control Module Standard Control Panel Exhibit 31
43. ch you may need to press the overload reset button and check the deflector to ensure that it does not touch the evaporator or aluminum casting If the deflector makes contact with the evaporator surface or aluminum casting at any point shut down the machine and repeat the above steps to readjust the deflector ICE DEFLECTOR ADJUSTMENT EXHIBIT 37 53 15 Service amp Adjustment REPLACEMENT amp ADJUSTMENT OF ICE DEFLECTOR 5 TON 10 TON MODELS To properly install the upper edge of the deflector should be positioned approximately 1 4 BELOW the aluminum lip under the evaporator The ice deflector should be centered beneath the ice cutter blade so that as the ice is removed from the evaporator it will be deflected into the ice bin opening away from the water collecting trough The ice deflector prevents ice from dropping into the water collecting trough TO REPLACE THE ICE DEFLECTOR PROCEED AS FOLLOWS Shut off ice flaker and allow machine to pump down de ice Once the machine is clear of ice disconnect the main power to the ice flaker and LOCK THE DISCONNECT SWITCH IN THE OFF POSITION to prevent accidental start up Reaching UP from the bin into the freezing chamber loosen and remove the two 5 16 bolts holding the existing ice deflector brackets in place Remove the damaged ice deflector and or brackets Assemble the new brackets and deflector but do not tighten yet Position and bolt the new ice deflect
44. ches are closed or power is not brought to line from line or solenoid coil defective Drive motor always stays Power is maintained to input 3 on on off switch es and or ice level control is are not shutting off 44 PROBABLE CAUSE REMEDY reading should be 24 VAC If 24 VAC is not present control transformer may be defective check amp replace Check switches and ice level control for proper operation Close switches or replace if defective a Switch es open voltage should be 0 VAC b Switches closed voltage should be 24 V AC Check voltage between 2 24 present output is defective replace module 0 VAC present module output 6 is OK check wiring or contactor coil Remove wires from 7 amp 8 set meter to ohms and i check for continuity between terminals 7 amp 8 while module is i energized all switches in the on closed position Contacts open output defective replace module Contacts closed Module output OK Check line A jumper or CR contacts see wiring diagram Check wiring or solenoid coil Check on off switch es and ice level control for proper operation replace if defective 14 Trouble Shooting Chart PROBLEM Liquid line solenoid _ICE STORAGE 4 REMOVAL Ice flakes frozen together into a hard block of ice in storage bin the ice deflector into the Drip pan leaking
45. coupling will lift off with the gearbox the bronze star and bottom part of the coupling will stay attached to the main shaft Loosen the set screw on the top part of the coupling to remove it from the gearbox Care should be taken to avoid oil from seeping out the relief vent located on the top if the gearbox in a set screw if the gearbox is turned on its side or up side down The bottom part of the flex coupling is attached to the shaft with a set screw Loosen the set screw then lift the coupling off the shaft The use of a gear puller may be required to assist in removing either part of the coupling Install the new or existing if it is not damaged flex coupling to the shaft and speed reducer lining up the keyways with the key Re tighten the set screws in both parts Place the bronze star on the bottom part of the coupling Install the gear box with top coupling attached onto the top casting over the bottom part of the flex coupling If the gearbox does not sit on the top casting properly you may need to loosen one or both of the set screws on the flex coupling to allow the gearbox to seat on the machined surface of the casting There should also be a 1 16 gap between the top coupling half and the bronze star Rotate the gearbox COUNTERCLOCKWISE ONLY until the mounting holes line up Once aligned re install the mounting bolts Reposition coupling halves with required clearance and re tighten 57 15 Service amp Adjustment EXHIB
46. e years of service without replacement It assures that 100 of the daily ice production is completely dry crisp flake ice which contains more than 144 BTUs per pound of ice because it is sub cooled This is an important feature when comparing Rapid Freeze to a commercial flaker because none of the commercial units use a squeegee As a result 20 30 of the daily ice production in a commercial flaker is water which runs down the drain The bronze bearing and shaft thrust washer included are impregnated with a lubricating oil grease fittings are also provided The bearings are oversized to provide a lower level of friction on the interior surface This assures a very long life and substantially lower maintenance cost compared to commercial flakers The advantage of Rapid Freeze flake ice offers over the granular ice produced on commercial machines is the greater surface area dryness lower temperature and longer life Rapid Freeze flake ice contains over 17 000 sq ft of surface area per ton This equates to approximately 2 times the surface area of granular ice Greater surface area provides more contact with the product to assure better cooling The temperature of Rapid Freeze flake ice measures approximately 22 F when harvested This sub cooled ice contains more than 144 BTUs per pound which assures a substantially longer life than granular ice 23 Start amp Adjust Once installation has been completed and the ice Flaker has been
47. el or factory wiring RC SCA amp SCW models drive motor and water pump wires Single phase units standard wired to T1 amp T2 7 Solenoid Valve Terminals Terminals for field wiring liquid line solenoid valve wires 8 Line A amp B Terminals Terminal for providing line 2 power to solenoid valve On RC SCA amp SCW models wired through compressor safety switches high discharge pressure amp high oil pressure to assure liquid solenoid valve will de energize if the compressor shuts down on a safety failure When connected to a refrigeration rack a wire jumper is placed between line A and line B in the flaker control panel 9 On Off Switch Terminals Terminals for installing a remote on off switch or auxiliary control such as a 7 day clock timer or remote modem for grocery store applications These auxiliary controls will be wired in series with the panel mounted on off switch and factory wired photo eye ice level control so all 3 switches must be closed to start the machine but opening ANY switch will shut the machine off 10 Ground Terminal Terminal for grounding ice machine and control panel to proper ground Wire per local code requirements DOOR MOUNTED ITEMS 1 On Off Switch Main on off switch for control circuit Wired in series with remote Optional field installed switch and Photo Eye Ice level control 2 Ice Flaker Run light Green light is on whenever the contactor and drive motor is energized
48. er than 125 F 52 C and should be stored and secured in a manor to prevent abnormal mechanical shocks CAUTION Service Installation personnel MUST have knowledge of refrigeration systems to properly charge this ice flaker CAUTION Verify that thermostatic expansion valve supplied with the ice flaker matches the refrigerant for the refrigeration system or condensing unit WARNING All Rapid Freeze BARE and Remote model ice flakers are shipped with a small holding charge of dry Nitrogen SYSTEM MUST BE EVACUATED PRIOR TO CHARGING REFRIGERANT WARNING 3 Installing the Rapid Freeze Flaker Follow good accepted practice and procedure to charge refrigerant into the system briefly outlined as follows 1 Pressurize and test the system checking for leaks 2 Use a good quality vacuum pump to evacuate the system Make sure all shut off valves are OPEN so that the entire system is evacuated Allow vacuum pump to run for several hours 3 Break vacuum with refrigerant and evacuate again 4 Repeat step 3 This is called triple evacuation It ensures that all air and moisture has been removed from the system Failure to do so may result in compressor burn out 5 After the third evacuation notice that the eye in the liquid indicator is green supplied by Howe on all flakers except bare flakers indicating that the system is clean and dry Then continue to charge the system using gas not liq
49. forklift Stack the two 36 long 2 X 4 s on the side of the bin beside the drip pan overlapping the front and back of the bin Using a pry bar as a lever on the 2 X 4 s raise the side of the flaker and remove the TOP blocks only 3 Installing the Rapid Freeze Flaker Step 7 Repeat steps 5 amp 6 on the other side Step 8 With the flaker sitting on one 1 block under each corner repeat steps 5 6 amp 7 removing the remaining blocks Drip pan flanges MAY bend slightly Step 9 Straighten the drip pan flanges if necessary EXHIBIT 2 CONTROL PANEL REMOTE LOW SIDE FLAKE ICE MACHINE ELECTRIC JUNCTION BOX WOOD BLOCKS 2 EACH CORNER DRAIN PAN N MOBIL EXPRESS ICE BIN 3 Installing the Rapid Freeze Flaker WATER LINE Connect a 1 2 galvanized or 1 2 ODS COPPER water pipe from the closest convenient water line to within 2 to 4 feet of the ice flaker water sump Install a water line shutoff valve near the ice flaker Use copper tubing between water valve amp water inlet connection located on water sump Refer to the engineering sheet for the line size connection from the ice flaker sump to the water supply line If water supply has silt or sand in it a coarse water filter is recommended IMPORTANT NOTICE A MINIMUM WATER PRESSURE OF 30 PSIG IS REQUIRED AT THE ICE FLAKER FLOAT VALVE TO INSURE ADEQUATE WATER FLOW MAXIMUM WATER PRESSURE TO THE FLOAT VALVE IS 60 PSIG IMPORTANT
50. freezing on drum Loss of refrigerant charge Inspect for and repair and compressor short leaks charge to proper cycles refrigerant levels Dead power element on TXV Replace power element I Ice flaker makes ice Insufficient water supply to ice intermittently and flaker because compressor short cycles Water supply line undersized Install water supply line of proper size Water supply less than 20 PSIG Consult factory c water filters clogged Replace filters every 6 months or sooner if necessary Back flushing filter may temporarily work until replacement filters arrive Ice flakes too thin Evaporating Temp too high because overfeeding compressor Pinch down close 2 frosted turn at a time b EPR set too high Adjust EPR for evaporating temp between 5 F and 10 F Freshwater 30 F to 35 F for seawater Condensing unit not producing rated capacity because Compression valves broken Repair service compressor condensing unit ondenser dirty Head press too Clean fin coil air cooled high unit Clean tubes water cooled units 47 14 TroubleShooting Chart PROBLEM PROBABLE CAUSE REMEDY Head pressure controls defective Replace defective head pressure control Headmaster Control Condensing unit undersized Replace unit with properly sized condensing unit
51. ge of dry nitrogen to ensure the evaporator is kept clean and moisture free They must be pumped down and evacuated after they are connected to the refrigeration system before the entire system is charged with its refrigerant charge Immediately upon receipt of equipment before placement or installation of equipment verify the electrical and refrigerant configuration are correct as ordered If any discrepancies are found notify Howe Corporation immediately prior to any installation 3 Installing the Rapid Freeze Flaker Installation Conditions Rapid Freeze Ice Flakers are designed to operate in ambient temperatures warmer than 50 F Do not install ice flaker s in refrigerated cold rooms or in areas where the ambient temperature is lower than 50 10 C If it is unavoidable ice flakers may be installed in areas down to 45 7 O provided that three 3 electric rib heaters available from the factory are installed to heat the bottom casting to prevent ice buildup on the three supporting ribs for the bottom bearing If installed in cold ambient conditions it is advisable to supply the ice flaker with warmer water through a water mixing valve around 60 F 15 C When a combination of cold water and cold air temperature exists the mixing valve and rib heaters must be used Failure to do so will cause the lower water collecting trough and sump to plug up with ice to the extent that the water may overflow into the ice storage bin in add
52. hine starts then module is defective Replace module Remote optional on off switch i is open off Ice maker starts Time 2 off delay adjusted to immediately after is minimum setting removed from beam path Turn all switches to ON position Turn time 2 off delay potentiometer clockwise to maximum setting 15 seconds Reprogram power module for both on and off delays Power module programmed for on delay only Turn time 1 on delay potentiometer clockwise to maximum setting 15 seconds x Ice maker solenoid valve chatters as ice falls past beam path Time 1 on delay adjusted to minimum setting Power module programmed for off delay only reprogram power module for both on and off delays CONTROL MODULE x Using a digital voltmeter set AC voltage check 1 voltage between 1 amp 2 on No control power from control transformer secondary 24 Ice flaker is not running 43 14 TroubleShooting Chart PROBLEM Control switch es open Check voltage between terminals 1 amp 3 Drive motor contactor is Control module output is not energized Solenoid defective or contactor coil valve is energized burnt or open wire in circuit Solenoid valve not Control module isolated contacts energized Drive motor will not close provided all contactor is energized swit
53. hten the flare nuts Re attach the bulb to the suction line at approximately 5 o clock position Secure the bulb using two straps Re insulate the suction line Using a high quality vacuum pump evacuate the liquid line to remove any moisture that may have entered the system while the line was open to atmosphere ADJUSTMENT OF EXPANSION VALVE If ice freezes on surface of evaporator top to bottom but harvests only the upper portion with each revolution of the shaft and there are no bubbles in the sight glass then the expansion valve must be adjusted opened to feed more refrigerant On the other hand frost on the compressor body indicates that the valve is overfeeding Remove the adjustment stem cover and turn the adjustment stem 1 8 to 1 4 turn at a time clockwise to close the valve if it was overfeeding counterclockwise to open the valve if the evaporator was not harvesting ice on its entire length Wait 5 10 minutes between each adjustment to allow the valve to stabilize Repeat this step until ice is produced and harvested all the way down to the bottom of the evaporator Note Balanced Port Expansion Valves Are more sensitive than normal TXV s so adjustment of the stem should be limited to between 1 16 to Y turn at a time SPECIAL NOTE ON SINGLE CIRCUIT MACHINES WITH DUAL TXV VALVES 101E 1 76E 1 75E 100E CLOSE BOTH VALVES AND OPEN BOTH EQUALLY 1 4 12 TURN EACH UNTIL ICE IS MADE AND HARVESTED ON THE ENTIRE LE
54. inal 5 Motor Overload Output for overload indicating light energized upon overload condition stays on until overload is manually reset Red LED on control module indicates overload condition This LED will glow prior to actual shut down of drive contactor Terminal 6 Ice flaker contactor output Output is energized when input signal is present amp control is not in overload condition When input signal is removed switch or ice level control open timer circuit is started Output will stay energized until timing circuit releases output Output is de energized immediately upon overload condition Terminals 7 amp 8 Isolated output contacts for liquid solenoid valve normally Open Contacts close immediately upon input signal 3 stay closed until input 3 signal is removed Contacts open when input signal 3 is removed or when overload condition exists 30 11 Electric Control Panel Control panel door layout E20T40 RL Exhibit 31 Control Panel Door Layout E20T40 SCA COMPRESSOR ICEFLAKER COMPRESSOR RUN ICE FLAKER RUN LOW OIL PRESSURE moton FALUR PUSH TO RESET HIGH DISCH PRESS LOW SUCTION PRESS FAILURE PUMP DOWN ICE FLAKER 31 ia grams ing D Ut Control Panel Wi 12 Control Panel Schematic E20T40 RL 011 ON 10 4 09 10 92 9 O9 L 0EZ SYOLOW dW d 9 3AIHQ 09 1 02 H3MOd 09 1 06
55. ition to blocking the water inlet to the pump Also it is advisable to direct air blowers and fans away from the ice flaker as air velocity over the ice flaker will reduce the effectiveness of the heaters CAUTION NEVER install an ice flaker in a cold room 45 F 7 C or lower The ice flaker warranty is void if the ice flaker is installed in a cold room or outside where the ambient temperature may drop below freezing CAUTION Optimum surrounding air temperature 60 F 15 C to 95 35 C Minimum air temperature without heater 50F 10 Minimum air temperature with heater 45 7 Maximum air temperature 100 F 38 Optimum water temperature range 60 F 15 to 80 25 C Minimum water temperature without water mixing valve 45F 7 C Minimum water temperature water mixing valve must be used 36 2 C Maximum water temperature 90 F 32 O Installation without ice bin Rapid Freeze Ice Flakers may be installed under certain conditions without a typical ice bin When the flaker is installed without a bin it must have a drainable condensate pan located under the machine flaker must also be mounted high enough off the f
56. leaning solution and rinse with 2 or more complete rinses to ensure that cleaning solution is flushed away thoroughly At each rinse fill sump with fresh water and run drive motor and water pump for 10 minutes then drain TO SANITIZE 9 Mix a solution of approved sanitizer or mix 16 oz of household bleach with 2 gallons of warm water 90 115 F 10 Pour solution into sump to normal operating level as in 6 then re circulate sanitizing solution for approximately 20 minutes by turning on drive motor amp pump 11 Drain solution and rinse thoroughly with fresh water at least twice following procedure described in No 8 12 After ice flaker is thoroughly rinsed return machine to normal operation by opening water supply valve and restoring refrigeration Water Distribution Tubes Water distribution tubes should be kept clean and free of any mineral buildup When they do accumulate mineral deposits the flaker must be thoroughly cleaned Carefully inspect each distribution tube and fitting for leaks or crack Replace defective tubes when necessary Water Sump Water sump and pump should be kept clean and free of any mineral buildup When mineral deposits accumulate the machine must be thoroughly cleaned The water sump will be cleaned when you normally clean the equipment by circulating the ice machine cleaner through the water system In extreme cases of mineral or slime buildup shut off the main power and remove the top covers fro
57. loor so there is no chance that somebody may reach into the evaporator from below either with a pole or their arm while the flaker is operating Refrigerating the ice storage bin is not normally necessary nor is it recommended However in those cases where ice is to be discharged into an existing freezer room then as a minimum electric heaters should be installed on the bottom casting and the sump regardless of the actual ambient temperature of the air surrounding the ice flaker Air from the freezer room should be directed away from the ice flaker opening otherwise the effectiveness of the heaters will be reduced If the storage area is held at 28 F 8 C or colder it is advisable to install the ice flaker 1 to 2 feet above the freezer and use a duct section to direct the ice into the storage bin 3 Installing the Rapid Freeze Flaker Installation on Ice Storage Bins Rapid Freeze Ice Flakers are designed to run smoothly and without vibration The machines are usually mounted directly on top of an insulated ice storage bin The storage bin must have an insulated top with a drip pan which is an integral part of the top designed specifically for the Rapid Freeze Ice Flaker model installed on it The ice bin should be designed to support the weight of the flaker and the ice stored inside the bin Most ice storage bins can handle the weight of a 2000 3000 4000 6000 pound capacity bare ice flaker without any additional bracing It is
58. m machine leave flexible coupling on until later The flexible coupling will help to keep the shaft from dropping when the bottom bearing retainer is removed 4 The bottom bearing retainer and bottom bearing cover are attached to the bottom casting via 4 5 16 bolts Remove the 4 bolts from the cover amp retainer Once the bearing cover is removed you will see the bottom bearing retainer and the end of the shaft There are two threaded holes on the retainer install two of the removed bolts into these threaded holes turning each one an equal amount to jack the retainer out of its normal position on the bottom casting 5 When the retainer is removed the old bearing can be pressed out of the aluminum retainer 6 There is a stainless steel shaft sleeve between the shaft and the bearing the shaft sleeve will probably come off the shaft with the bearing and retainer If it did not then remove the sleeve from the shaft it is kept in place with only a keyway there is no set screw It will slide freely but rotate with the shaft 7 Press the new bearing into place it should be centered in the retainer 8 The new seals can then be pressed into place the auxiliary seal is placed inside the main seal 9 Place the new shaft sleeve on the shaft and install the bearing retainer with new bearing amp oil seals installed and bottom bearing cover Align the bolt holes with the threaded hole in the casting and re install the 4 mounting bol
59. m the sump and using the ice machine cleaner and a scrub brush clean the aluminum casting until the deposits are removed Ice Bin Drip Pan The ice bin drip pan should be cleaned each time the ice flaker is cleaned The pan should be wiped clean to remove any mineral or slime deposits The drain line should also be flushed to allow condensate to drain freely from the drip pan 40 13 Maintenance Lubrication Bearings amp Seals Main Bearings on the ice flaker must be lubricated every 3 months with a FDA approved edible grease The grease fittings are easily accessible from the front of the flaker the top bearing is lubricated through the inspection service opening the bottom bearing is lubricated through one of the ribs located on the front of the machine in the lower right corner near the water sump On small capacity units with out rib heaters only For large capacity amp units with rib heaters lower grease fitting is on the center hub on the bottom casting Bearing Lubrication points Exhibit 36 TOP BEARING LUBRICATION FITTING SERVICE OPENING BOTTOM BEARING LUBRICATION Speed Lubrication Grease Fitting The speed reducer must be lubricated greased every six months with a standard bearing grease not food grade Oil Change The oil in a new speed reducer should be changed at the end of 250 hours of operation Under normal conditions after the initial oil change the oil sh
60. ne to pump down de ice Once the machine is clear of ice disconnect the main power to the ice flaker and LOCK THE DISCONNECT SWITCH IN THE OFF POSITION to prevent accidental start up Remove the service access cover on the top casting Remove 2 or 3 water distribution tubes for easier access Reaching down into the freezing chamber loosen and remove the two 5 16 bolts holding the existing squeegee amp squeegee wrapper in place Remove the squeegee amp wrapper assembly through the service opening If the squeegee wrapper is not bent out of shape or pitted with rust then you can remove the rubber squeegee from the wrapper and install a new squeegee in your existing wrapper Reinstall the squeegee amp wrapper assembly onto the mounting bracket in the freezing chamber hand tighten the nuts with the squeegee touching the evaporator surface then move the squeegee assembly approximately 1 16 to 1 8 closer to put a little pressure on the squeegee causing it to bend slightly so that it will drag on the evaporator surface Do not install the squeegee assembly so close to the evaporator so that the squeegee bends excessively This may cause premature squeegee wear and increase load on the gearbox and drive motor Tighten down the nuts and bolts only until the lock washers lock Do not over tighten bolts as this may cause distortion of the squeegee wrapper and possibly cause premature squeegee wear 55 15 Service amp Adjustment
61. ng the flaker with a full bin will cause the ice deflector to bend or break as it churns the ice In extreme cases it may result in damage to the speed reducer and or the electric drive motor and flexible coupling The proper and approved bin level control is the photo electric eye When ordered with the machine the eyes are mounted on brackets that will attach to the bin top or wall The cables are routed through the bottom casting of the ice flaker The power module is mounted inside the ice flaker control panel ELECTRIC EYE ICE LEVEL CONTROL EXHIBIT 23 20 8 Accessories WHY ICE BIN THERMOSTATS ARE NOT USED The use of a bin thermostat is not recommended and not permitted The Rapid freeze ice flaker is designed so that the freezing drum operating 4 5 F to 10 F is located directly over the ice drop opening in the bin This large opening permits cold air to cascade off the evaporator down into the bin Since the air temperature in the bin is equal to or lower than the ice temperature the set point of the thermostat cannot be adjusted to where it can reliably distinguish temperature difference upon contact with ice In most cases when deflector damage is reported investigation has shown that a thermostat was used as a bin level control device The photo eye ice level control physically sense the presence of ice rather than sensing temperature RIB HEATING ELEMENTS When rib heaters are necessary Rapid Freeze ice flaker
62. ns throughout this manual BEWARE HAZARDS WHICH CAN RESULT IN PERSONAL INJURY WARNING DO IT RIGHT OR RISK SEVERE PERSONAL INJURY FOLLOW INSTRUCTIONS WARNING CAUTION BE CAREFUL NOT TO HURT YOURSELF OR TO DAMAGE THE EQUIPMENT FOLLOW INSTRUCTIONS CAUTION 1 Introduction CAUTION Only service personnel experienced in refrigeration and qualified to work with high voltage electrical equipment should be allowed to install or service this Rapid Freeze Ice Flaker CAUTION Upon receipt of your Rapid Freeze Ice Flaker you should first inspect the carton very carefully to determine if any damage may have occurred during shipment If you suspect any damage has occurred it should be noted immediately on the freight bill In addition a separate written notice must be sent to the agent representing the freight carrier The written notice should request an inspection by the agent to verify damage during shipment If the damage was noticed after un crating of the carton it is necessary to keep the original shipping container so the carrier s agent can investigate the damage claim thoroughly If a repair is necessary for the Rapid Freeze machine you must first obtain written permission from the factory before beginning any repairs Unauthorized work on your Rapid Freeze Ice Flaker could result in voiding the machine s warranty Seawater units are shipped with a holding char
63. ong known for durability and reliability our flake ice equipment is unsurpassed in energy efficiency and low maintenance Available in a wide variety of sizes and configurations the rugged Rapid Freeze Flaker can be found in diverse applications from supermarkets and food processors to remote fishing villages Rapid Freeze Energy Efficiency The Rapid Freeze Flake Ice Machine enjoys a world renowned reputation for having one of the highest energy efficiency rating EER of any ice maker on the market With energy usage of 30 40 below that of many competitors models the Rapid Freeze ice machine offers an outstanding value In addition to high energy efficiency the Rapid Freeze Flaker is extremely dependable with very low maintenance cost Overall the cost of owning and operating a Rapid Freeze Flaker by Howe is one of the lowest in the industry Important Safety Information The information found in this manual is intended for use by individuals possessing adequate backgrounds of electrical refrigeration and mechanical experience Any attempt to repair or make alterations to this equipment may result in personal injury or property damage The manufacturer or seller cannot be responsible for the interpretation of this information nor can it assume any liability in connection with its use Special Precautions To Be Observed When Charging Refrigeration Systems Only technically qualified persons trained and certified in the handling of
64. onths whereas in normal or soft water areas twice year may be sufficient When cleaning is necessary proceed as follows 1 Turn off refrigeration compressor If flaker is connected to a compressor rack close the liquid line shut off valve 2 Remove allice in storage bin 3 Close water supply shut off valve 4 Drain water from drain connection in water sump Some models are equipped with a drain valve others have a drain plug located below the water float valve connection 5 Prepare the cleaning solution Mix 8 oz of ice machine cleaner with 3 quarts of hot water Water should be between 90 115 F If using an alternate ice machine cleaner such as Virginia cat no 418 follow instructions on bottle CAUTION ICE MACHINE CLEANERS CONTAIN ACIDS AND MAY CAUSE BURNS HANDLE WITH CARE IN CASE OF EXTERNAL CONTACT FLUSH WITH WATER IF SWALLOWED SEEK IMMEDIATE MEDICAL ATTENTION USE APPROVED ICE MACHINE CLEANER ONLY MIX SOLUTIONS PER MANUFACTURERS INSTRUCTION CAUTION 39 13 Maintenance 6 Pour solution of ice machine cleaner into sump to normal operating level Do not overfill because it may overflow into bin pa Start the ice flaker drive motor and water pump to circulate cleaning solution over the freezing surface and all water passages Operate until all scale is removed This may require from half hour up to about 2 hours if scale build up is heavy 8 When system is clean drain c
65. or and brackets to the shaft Tighten all the bolts two to the shaft and two to each side of the deflector amp brackets with the deflector adjusted to within 14 but NOT touching the evaporator surface or aluminum casting Remove all tools from inside the machine Remove lock out devise from the main power disconnect and turn on the main power Turn on the ice flaker switch you may need to press the overload reset button and check the deflector to insure that it does not touch the evaporator or aluminum casting If the deflector makes contact with the evaporator surface or aluminum casting at any point then shut down the machine and repeat the above steps to readjust the deflector 54 I5 Service amp Adjustment REPLACEMENT amp ADJUSTMENT OF ICE DEFLECTOR SCRAPER 2000 6000 pound models only The ice deflector scraper is mounted on of the three bottom ribs using two 14 20 stainless bolts and nuts The scraper s primary purpose is to clear any buildup of ice on the ice deflector as the deflector passes by the scraper When properly positioned the scraper will be approximately above the deflector blade When replacing the scraper it may be necessary to cut the angled edge down to the proper size This may be cut with either aviation snips or a razor knife ICE DEFLECTOR SCRAPER ADJUSTMENT EXHIBIT 39 REPLACEMENT amp ADJUSTMENT of the SQUEEGEE amp SQUEEGEE WRAPPER Shut off ice flaker and allow machi
66. or use on plastic distribution pan E10H18 P 6 E20H39 P 6 E20H39 P 7 Water Distribution pan assembly includes dist Tubes fittings Plastic Pan Tubes EH NA Water Distribution pan assembly includes dist Tubes fittings Aluminum Pan Copper Tubes YA S as Seawater Distribution pan Aluminum Pan with Split 10 14 5 36a cover tubes not included 37 638 Water distribution bottom spout fitting E10H17 E20H38 Water distribution bottom spout fitting for use on E10H17 P E20H38 P plastic distribution pan Water sump assembly includes water pump E10H31 E30H7 Water Sump bolt down cover New Style Flat plate E10H31 2 Water sump bolt down cover old style Cast Aluminum E10H20 E20H9 Water sump removable cover old style Large sump E10H21 H20H10 Seawater sump anti splash baffle E20H42 Water sump gasket E20J2 Water sump silicone adhesive E20J6 Water float valve E10h29 round float 6 arm 5 18 rectangular float 11 arm Bee 43 Water Float Valve Assembly Shipboard freshwater 1 E50H18 seawater amp land based seawater Water float Valve Circular 5 arm old style 20 1 42 21 CNB BR02 06 CNBHF SG 53 20 19 ELM CT NY 10 08 E20H24 60 jWatertbesleve 9 9 jWatrsumpseeen ___ 20 Waterpump230 60 SELECTIVE PURPOSE Manual P
67. orrosive resistant water sump tank 7 3 Food grade neoprene squeegee 6 Oversized bronze sleeve bearing 22 1 2 3 4 5 THE INSIDE STORY The cut away picture from the previous page will allow you to locate the position of the parts as well as showing that Rapid Freeze Flakers are an open vertical stationary barrel style evaporator Each evaporator is an all welded one piece design which provides superior structural integrity and heat transfer characteristics The heavy duty construction accounts for a 25 year life time evaporator warranty The barrel style evaporator allows the ice to fall through the center of the evaporator and avoids extruding the ice to the top like commercial flakers This design eliminates the bearing loads created by extruding ice which accounts for the short life of commercial flakers and high maintenance The ice blade is made of investment cast stainless material The investment casting process assures that razor thin tolerances can be maintained indefinitely Stainless steel is corrosion resistant which is important particularly in areas with poor water quality The ice blade never comes into contact with the evaporator which accounts for its long life Since the blade was introduced in 1986 The factory has rarely sharpened or replaced a stainless steel blade The rubber squeegee is constructed of a USDA approved material which is resilient enough to provid
68. ould be changed after every 2 500 hours or every six months whichever occurs first Periodic examination of oil samples taken from the unit will help establish the appropriate interval Low Temperature Oil When operating the ice flaker in low ambient temperatures colder than 50 F The gearbox oil must be changed from the standard mineral oil to a synthetic oil The synthetic oil is appropriate for lower temperatures as well as having a longer operating life resulting in less frequent oil changes Mechanical Cleaning Refer to page 57 for cleaning procedure Preventative Maintenance 41 13 Maintenance Preventative maintenance means that the store or department manager or a designated employee make a daily visual check of the ice flaker Check for Bin doors are working closing properly Bin doors are kept closed Photo eyes and brackets in proper alignment Ice Quality Size of flakes Ice Quantity Normal amounts of ice produced Bubbles in sight glass overall cleanliness of the flaker any unusual noises When these items are checked on a daily basis any change will be easily detected prior to any service call for a malfunction of the machine Preventative Maintenance Schedule o month montn 9 month 12 month Clean ice machine asrequirea 4 e Grease Top amp Bottom Bearings 2 Check if faker is harvesting properly 04 2 Check tor bubbles in sight g
69. p ADJUSTMENT OF ICE DEFLECTOR 2000 6000 POUND MODELS To properly install the upper edge of the deflector should be positioned approximately 1 8 BELOW the aluminum lip under the evaporator The ice deflector should be centered beneath the ice cutter blade so that as the ice is removed from the evaporator it will be deflected into the ice bin opening away from the water collecting trough The ice deflector prevents ice from dropping into the water collecting trough TO REPLACE THE ICE DEFLECTOR PROCEED AS FOLLOWS Shut off ice flaker and allow machine to pump down de ice Once the machine is clear of ice disconnect the main power to the ice flaker and LOCK THE DISCONNECT SWITCH IN THE OFF POSITION to prevent accidental start up Remove the service access cover on the top casting Remove 2 or 3 water distribution tubes for easier access Reaching down into the freezing chamber loosen and remove the two 1 4 bolts holding the existing deflector in place Remove the damaged ice deflector through the service opening Position and bolt the new deflector to the shaft Tighten the bolts with the deflector adjusted to within 1 8 but NOT touching the evaporator surface or aluminum casting Re install water distribution tubes Remove all tools from inside the machine and re attach the service access cover Remove lock out device from the main power disconnect and turn on the main power Turn on the ice flaker swit
70. recommended that the bin manufacturer be consulted before any ice flaker is placed on top of a bin The weight of each ice flaker machine along with the diameter of the hole required for ice entry into the bin is given on the specification sheet for that particular model Allow for a MINIMUM OF 6 clearance on top of the 2000 3000 4000 or 6000 pound capacity and MINIMUM OF 10 clearance on top of the10 000 15 000 and 20 000 pound capacity ice flaker for removal of the speed reducer and sufficient space around the unit approximately 3 feet for inspection and service Recommended Installation Method on Ice Bin Refer to bin manufacturer s installation instructions for proper assembly and set up procedures Locate and set the bin on a solid level footing Once the bin is set in place and leveled the Rapid Freeze ice flaker can be placed inside the drip pan Exhibit 2 illustrates the forklift and block method of placing the ice flaker on the bin Forklift amp Block Method You will Need Step 1 Step 2 Step 3 Step 4 Step 5 Step 6 o Forklift truck with adequate load and height capacities o 8 2 X 4 wood blocks approximately 6 8 long o 2 2 X 4 s approximately 36 long o Pry Bars Position ice flaker on forks Stack two wood blocks in each corner of the drip pan on the ice bin Lift ice flaker over the wood blocks position ice drop zone over the bin top opening then set the flaker on the blocks Remove
71. s the ice maker will begin to freeze the water circulating over the evaporator into ice 8 Allow 10 15 minutes to let the ice flaker come down to temperature and balance out 9 Looking down into the evaporator through the hand hole cover check to make sure the is being frozen and harvested over the entire surface of the evaporator If it is not 9a check for bubbles in the sight glass 9b check the suction pressure the ice machine connect low pressure gauge to a charging valve mounted on the suction line Suction temperature must be maintained 5 F 20 5 C to 10 F 23 3 C at all times For freshwater 30 F 34 4 C For seawater 10 Liquid line must have unrestricted flow at all times for proper performance of ice flaker On ice flakers connected to a rack system liquid line should be connected directly to the receiver before any defrost restricting valves 11 If suction temperature is between 5 F 20 5 C to 10 F 23 3 C For freshwater 30 F 34 4 C For seawater and there are no bubbles in the sight glass and ice is not being frozen and harvested on the entire surface of the evaporator then the expansion valve must be adjusted EXHIBIT 29 12 Remove the adjustment stem cover and turn the adjustment stem 1 8 to 1 4 turn at a time clockwise to close the valve if it was overfeeding counterclockwise to open the valve if the evaporator was not freezing ice on its entire length Wait 10 15 min
72. s are designed to operate in ambient temperatures between 50 F 10 C and 100 F 38 C When operating in ambient temperatures between 50 F 10 C and 45 F 7 O rib heaters MUST be installed on the ice flaker Under NO circumstances is the machine to be allowed to operate in ambient conditions under 45 F 7 C Factory installed Factory installed rib heaters are available on all sizes and configurations when ordered with the ice machine These heaters are installed inside the three ribs on the bottom casting inside the evaporator section of the ice flaker If the heaters are not ordered with the machine they cannot be installed inside the ribs Field Installed Large capacity models 50 51 75 76 100 amp 101 E EA amp EAR can have rib heaters installed in the field Remove the 3 red plastic caps from the outer jacket near the bottom of the flaker Install a close nipple into each threaded hole and attach a bell box to each nipple Insert the rib heater into the rib cavity through the bell box and nipple Wire the three heaters in parallel so they are energized when the machine is making ice See wiring diagram 21 9 How The Rapid Freeze Flaker Operates ICE FLAKER CUTAWAY DRAWING EXHIBIT 26 2 Corrosion resistant water distribution system 0 Heavy duty industrial E hes gear box amp motor stationary evaporator with no refrigerant seals 8 Shaft 5 Stainless Steel Ice Blade 9 Large insulated c
73. sor suction while the compressor is off on a safety switch Automatic Ice level control must be installed to prevent ice from building up into the flaker barrel and possibly damaging the machine Refer to Icel level mounting amp installation instructions in section 8 FREON PIPING FREON PIPING LINE SIZES TABLE 4 50 FOOT RUN APPRX REFRIGERANT LIQUID SUCTION CHARGE 18 6 SEAWATER MODEL INSTALLATION IMPORTANT NOTICE When piping ice flaker to a central refrigeration rack liquid line must be connected to the receiver side of any defrost solenoid control valve to insure uninterrupted liquid feed supply during normal defrost cycles of the rack IMPORTANT NOTICE When installing a seawater ice flaker it is important that the flaker is properly piped as shown on the piping schematic on page 26 On the liquid line install a filter drier not supplied When connecting to a dedicated oversized condensing unit or refrigeration rack system an EPR valve must also be provided and installed to regulate the evaporator suction temperature to between 35 F and 30 F 37 1 C to 34 3 C Liquid Line For longer runs good refrigeration practice dictates that the liquid line be one size larger to prevent flashing due to excessive pressure drop If the system is fully charged the presence of bubbles in the sight glass at the ice flaker is a visible indication that flashing is occurring It may not be possible to adju
74. st the thermostatic expansion valve properly when this condition exists Note Flashing may also occur if the liquid line is run through hot areas of the vessel such as boiler rooms or smoke rooms If this is the case the liquid line should be insulated IMPORTANT NOTICE When connecting to a low temperature rack below 35 237 1 C you must provide and install a suction pressure regulator EPR Valve to control suction pressure at the ice flaker at approximately 30 F 34 3 C IMPORTANT NOTICE Suction Line For longer than 50 foot run the next size suction line may be used for horizontal runs and slightly pitched towards the compressor rack Vertical risers should be the same size as the ice flaker connection size to maintain proper velocity for oil return If the vertical riser is more than 10 feet it is necessary to install a P trap at the bottom of the riser Install an additional trap for each 15ft of riser to facilitate oil lift Suction line should always be insulated Suction and Liquid lines should always be supported and secured to avoid damage and or refrigeration leaks 19 8 Accessories ELECTRIC EYE ICE LEVEL CONTROL Electric Eye Ice Level Control The use of a suitable ice level control to shut off the ice flaker when the bin fills up is mandatory Failure to use the proper ice level control will cause ice to build up within the ice flaker evaporator after the bin is full to capacity Operati
75. t the replacement sensor to the terminal strip Connect black wire from receiver only to terminal marked Install the sensor in the mounting bracket and tighten the locknuts Re install the power module into the base Turn on main power FY DN Check alignment of the sensors When proper alignment is achieved the LED the receiver will light Adjust the mounting brackets as necessary to ensure that the sensors are properly aligned 10 Reinstall the sensor housing covers if applicalble REPLACEMENT OF WATER PUMP Turn off the main power to the flaker Remove screws holding the stationary sump cover loosen and remove water tube fitting Nylon compression fitting remove the cover from the electrical junction box disconnect the water pump wires from the terminal strip Lift the water pump with cover attached off the sump Remove the water tube hose and clamp Loosen and remove four 4 nuts which hold the pump onto the sump cover the pump can then be removed from the cover Installing the new pump simply reverse the above procedure Use caution when routing the new cables to insure they are secured to avoid accidental damage REPLACEMENT amp ADJUSTMENT OF WATER FLOAT VALVE Turn off main power to ice flaker Shut off the water supply to the ice flaker and drain the supply line Loosen and remove the compression fitting at the float valve While holding the float valve body with a pliers or
76. ts taking care to tighten them equally so the retainer goes in straight 10 Remove the flexible coupling from the flaker shaft then remove the 4 5 16 bolts holding the top bearing retainer in place 11 Repeat steps 4 9 for the top bearing amp retainer removal the only difference is there is no bearing plate on the top bearing instead there are seals on the top and on the bottom of the bearing all seal are to be installed with the seals positioned to keep the grease in the bearing area 12 Rotate the shaft to check for clearance before re installing the drive assembly 13 Re install the flexible coupling gearbox and drive motor 14 Remove power lockout and turn flaker on Check rotation and amp draw prior to opening the liquid solenoid valve 15 If all seems to be in order open energize the liquid solenoid valve and allow the machine to start making ice 16 Discard the first bin 1 2 bin of ice and clean amp sanitize the bin prior to using ice for consumable products SELECTIVE PURPOSE Manual Page 60 15 Service amp Adjustment REPLACEMENT OF ELECTRIC EYES ICE LEVEL CONTROL Turn off the main power remove the 11 power module Locate the sensor to be replaced and remove the sensor housing cover if present Using two open ended wrenches and placing one on the back nut and one on the forward nut remove the sensor Disconnect the sensor from the terminal strip under the relay base Connec
77. uid Above is a brief outline for charging the system Consult the rack or condensing unit manufacturer for full details 6 SEAWATER MODEL INSTALLATION ASSEMBLY DRAWING 11 55 21 55 AUGUST 1995 ILS 44 SUPERSEDES SEPT 1992 HOWE I 11 5 16 5 01 5 SEAWATER LAND BASED 11 55 16 55 55 SEAWATER SHIPBOARD REMOTE FREON ICE FLAKERS 6 MINIMUM FOR SERVICE WATER INLET WATER DRAIN CONNECTION DIMENSIONS SIZES REFRIGERATION REQUIREMENT AT 30 F SUCT TEMP SUCTIUN 80 F WATER TEMP LIQUID ec r a o PET omo RE uses uu o 8 resres 13 3 esas s p oo s IA LA MODEL 10 6 SEAWATER MODEL INSTALLATION ASSEMBLY DRAWING 31ES 31ESS AUGUST 1995 ILS 45 HOWE CORPORATION 31ES SEAWATER LAND BASED 31ESS SEAWATER SHIPBOARD REMOTE FREON ICE FLAKERS MINIMUM FOR SERVICE 6 MDUNTING HOLE HEAT EXCHANGER WATER INLET WATER DRAIN CONNECTION REFRIGERATION DIMENSIONS SIZES REQUIREMENT T 30 F SUCT TEMP 80 F VATER 9 RE T Lowe ow res 19 os z ji 11 6 SEAWATER MODEL INSTALLATION ASSEMBLY DRAWING 51ES 51ESS AUGUST 1995 ILS 79
78. ulator little or no liquid in receiver after start up freezing hard on entire Water quality not suitable hard length of drum but water harvesting poorly and at 46 PROBABLE CAUSE Dull ice blade refers to old style Almost entire refrigerant charge REMEDY Relocate bulb approximately 6 from inlet side of suction line heat exchanger if equipped or on the horizontal section of the suction line at approximately 5 O clock position Clamp securely and insulate Head pressure control improperly adjusted or defective Adjust as necessary or replace defective control Replace filter drier Adjust ice blade clearance see instructions in Section 11 Service amp Adjustment Replace dull carbon steel ice blade with new stainless steel blade Replace worn bearings inspect and repair replace shaft if worn See section 11 Service amp adjustments bearing replacement procedure and re align assemble top casting Pump out accumulator i restart system Adjust TXV if necessary Install Howe Phosphate Filters 14 Trouble Shooting Chart PROBLEM PROBABLE CAUSE REMEDY ando with no spe reezing surface coated with hard Clean evaporator with ice pattern Leaves strips of water deposits machine cleaner to ice at upper end of drum remove deposits some at lower end etc 5 ice
79. utes between each adjustment to allow the valve and machine balance out Repeat this step until ice is produced and harvested all the way down to the bottom of the evaporator 13 When the ice maker is adjusted and operating properly turn off the on off switch or block the electric eye beam path The electric eye control has a 15 second delay before it s output opens When the output opens or when the on off switch is opened the shutdown sequence de energize the solenoid valve and start the off delay cycle for the drive motor amp water pump is initiated 25 13a On ice flakers with the solenoid valve interlocked with the condensing unit the compressor will pump down and cycle off once the compressor reaches the low pressure switch cut out point 14 Ice flaker is pumped down Solenoid valve is de energized drive motor amp water pump continue to run until the off delay cycle opens Field Adjustable between 1 30 minutes normally set at approximately 5 10 minutes 15 Electronic overload set point is factory set to trip within seconds when the motor reaches an overloaded condition 16 Ice maker is adjusted and producing dry flakes of ice 17 Water is NOT dripping into the bin If it is locate the dripping point and correct it i e distribution pan overflowing water recovery trough overflowing or distribution tubes broken or misaligned 26 HI Electric Control Panel THIS SECTION APPLIES ONLY TO CONTROL PAN

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