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PDF Content Summary: Manitowoc ICE MACHINES Series B150/B250 OWNER / OPERATOR USE AND CARE GUIDE SV1324 Thank you for selecting a Manitowoc Ice Machine, the dependability leader in ice making equipment and related products. With proper care and maintenance, your new Manitowoc Ice Machine will provide you with many years of reliable and economic performance: We reserve the right to make product improvements at any time. Spedifications ardoign the subject to change without notice Racychud Pabar Part No. 80-0921-3 Rev I 8-97 Use and Care Guide Manitowoc IMPORTANT Proper care and maintenance are essential for maximum ice production and trouble-free operation of your Manitowoc Ice Machine. You should read and understand this Use and Care Guide. It contains valu able cure and maintenance information, If you encounter problems not covered by this guide, feel free to contact Manitowoc Ice, Inc. We will be happy to provide whatever assistance you may need Your Use and Care Guide covers the following model numbers: Self-Contained Air-Cooled BR0150A BD0152A BY0154A Self-Contained Water-Cooled BR0151W BD0153W BY0155W BR0251W BD0253W BYÜ255W BR0250A BD0252A BY0254A (For stainless steel exterior, add an "S" suffix to model number - example: BD0152AS) CONTACT YOUR MANITOWOC DEALER FOR THESE OPTIONAL ACCESSORIES: BIN CASTER - Replaces standard legs. TRI-LIMINATOR WATER FILTER SYSTEM - Engineered specifically for Manitowoc lce Machines, Tri-Liminator water filters are an efficient, dependable, and affordable method of inhibiting scale formation, filtering sediment and removing chlorine taste and odor. MANITOWOC CLEANER/SANITIZER - Manitowoc Ice Machine Cleaner and Sanitizer are available in convenient 16 oz. bottles. (The only approved cleaner and sanitizer compatible for use with Manitowoc products.) DISPENSERS - Countertop dispensers are ideal for cafeterias and many types of self-service facilities. (Cold plate dispensers are also available.) Manitowoc auto-fill, floor-standing ice dispensers meet the strict sanitary requirements of the foodservice, lodging and healthcare industries. AUTOMATIC CLEANING SYSTEM (AuCS) - This accessory virtually eliminates equipment cleaning expense. The Aucs accessory monitors ice making cycles and initiates self cleaning procedures automatically. (Refer to page 13 of this guide.) Manitowoc Use and Care Guide TABLE OF CONTENTS SECTION 1 – GENERAL INFORMATION Model/Serial Numbers Location. Owner Warranty Registration Card ... Warranty Coverage . ... SECTION 2 — ABOUT YOUR ICE MACHINE Component Location and Identification. Sequence of Operation. Initial Start-Up or Start-Up After Automatic Shut-Off ... Freeze Sequence.. Harvest Sequence. Automatic Shut-off. Operational Checks .. Water Level Check Ice Thickness Check.. SECTION 3 - MAINTENANCE Maintenance Guidelines Chart General Ice Machine Inspection.. Exterior Cleaning .. Cleaning the Condenser ... Air-Cooled Condenser i. Water-Cooled Condenser ... Interior Cleaning - Self Cleaning System Cleaning Procedures ... . Sanitizing Procedures . .. Automatic Cleaning System (AuCS*) Accessory .. Automatic Operation . ... Manual Start Operation... Sequence of Operation ... Clean (or Sanitize) Cycle ... Rinse Cycles ... . Changing the Switch Position Prior to Completion of Automatic Cleaning Mode Removal of Parts for Cleaning/Sanitizing .... Water Dump Valve Removal Water Pump .. Ice Thickness Probe Water Trough Float Valve Water Distribution Tube Water Curtain ... Water Treatment Filtration ... Replacement Procedure.... Removal from Service/Winterization .. . SECTION 4 — BEFORE CALLING FOR SERVICE 2110 South 26th Street, P.O. Box 1720. Monitowoc, WI 54321-1720 . Phone: 020-682-0161 Fax: 920-683-7879 Litho in USA O MANITOWOC 1991 Use and Care Guide Manitowoc Manitowoc Use and Care Guide SECTION 1 GENERAL INFORMATION MODEL/SERIAL NUMBERS LOCATION Record the model and serial numbers of your ice ma chine and bin or dispenser in the space provided below. These numbers are required when requesting infoma tion from your local Manitowoc distributor, service representative, or Manitowoc Ice, Inc. The model and serial numbers are listed on the OWNER WARRANTY REGISTRATION CARD. They are also listed on the MODEL/SERIAL NUMBERS DECAL alfixed to the inside of the ice machine and on the back panel of the bin. Figure 1. --MODEL/SERIAL NUMBER DECAL SV1.375 Figure 1. MODEL/SERIAL NUMBER LOCATION ICE MACHINE BIN OR DISPENSER AuCS ACCESSORY Model Number Serial Number Use and Care Guide Manitowoc OWNER WARRANTY REGISTRATION CARD The packet containing this guide also includes warranty information. Warranty coverage begins the day your new ice machine is installed. Important Complete and mail the OWNER REGISTRATION CARD as soon as possible to validate the installation Manitowoc will use the date of sale to the Manitowoc Distributor as the first day of Wiranty coverage for your new ice machine, if you do not return your OWNER REGISTRATION CARD. Exclusions from Warranty Coverage The following items are not included in the ice ma chine's warranty coverage. 1. Normal maintenance, adjustments and cleaning as outlined in this manual. 2 Repairs due to unauthorized modifications to the ice machine, or the use of nonstandard parts without prior written approval from Manitowoc Ice, Inc. Damage caused by improper installation of the ice machine, electrical supply. water supply or drain age, or damage caused by floods, storns, or other acts of God. 4. Premium labor rates due to holidays, overtime, etc.. travel time: flat rate service call chargest mileage and miscellaneous tools and material charges not listed on the payment schedule. Additional labor charges resulting from the inaccessibility of the ice machine are also excluded. 5. Parts or assemblies subjected to misuse, abuse, ne glect or accidents. 6. Damage or problems caused by installation, clean ing and/or maintenance procedures inconsistent with the technical instructions provided in the Ins tallation Manual and this Owner/Operator Use and Care Guide. WARRANTY COVERAGE The following Warranty outline is provided for your convenience for a detailed explanation, read the war ranty bond on the inside back cover of this guide. Contact your local Manitowoc representative or Mani Lowoc Ice, Inc. if you need further warranty information. Parts 1. Manitowoc warrints the ice machine against defects in materials and workmanship, under normal use and service, for three (3) years from the date of original instailation. The evaporator and compressor are covered by an additional two (2) year (five years total) warranty. beginning on the date of the original installation Labor 1. Labor required to repair or replace defective com ponents is covered for three (3) years from the date of original installation. The evaporator is covered by an additional two (2) year (five years total) labor warranty, beginning on the date of the original installation. Authorized Warranty Service To comply with the provisions of the warranty, a refrig eration service company, qualified and authorized by your Manitowoc distributor, or a Contracted Service Representative must perform the warranty repair. Note If the dealer you purchased the ice machine from IS NOT authorized to perform warranty service. contact your Manitowoc distributor or our Wisconsin hend quarters for the name of the nearest authorized service representatives. Service Calls If you have followed the procedures listed in this guide (page 21) and the ice machine still does not perform properly. call your authorized service company. Manitowoc Use and Care Guide SECTION 2 ABOUT YOUR ICE MACHINE COMPONENT LOCATION AND IDENTIFICATION DISTRIBUTION TUBE ICE THICKNESS PROBE EVAPORATOR WATER CURTAIN KWATER PUMP =FLOAT VALVE WATER TROUGH HIGH PRESSURE CU TOUT/MANUAL RESET ICE/OFF AUTO-CLEANT SWITCH SV1330 BIN SWITCH WATER COOLED MODEL NNNNNNNNNNNNNNN NNNNNNNNNNNNNNNNNNNNNNNNNNNN NNNNNNNNNNNNNNNNNNN NNNNNNNNNNNNNNNNNNNNNNNNNNNNNN CONDENSER WATER REGULATING VALVE NNNNNNNNNNNNNNNNNNNNNNNNNNNNN NNNNNNNNNNNNNNNNNNN ANNNNNNNNNNNNNNNNNNNNNNN ANNNNNNNNNNNNNNNNNNNNNNNNNNNNNNS ANSANNNNNNNNNNNNNNNNNNNNNNNN ANNNNNNNNNNNNNNNNNNNNNNN ANNNNNNNNNNNNNNNNNNNNS ANNNNNNNNNNNNN SANNNNNNNNNN ANNNNNNNNNNNNNNNNNNN NNNNNNNNNNNNNNNNNNNNNNY NNNNNNNNNNNNNNNNNNNNNNNNNN NNNNNNNNNNNNNNNNNNNNNNNNNNNN NNNNNNNNNNNNNNNNNNNNNNNNNNN NNNNNNNNNNNNN NNNNNNNNNNNNNNNNNNNNNNNN SINNNNNNNNNNNNNNNNNNNNNNNN AAN NNNNNNN NNNNNNNNNNNNNNN NAANNNNNNNNNNNNNNNNNNNNNNNNNN ANNNNNNNNNNNNNNNNNNNNNNNNNNNN NAANNNNNNNNNNNNNN NANANANAS ANNNNNNNNNNNNNNNNNNNN INNSNN NNNNN NNNNNNNNNNNNNNNNNNNNNNNNNNNNN NNNNNNNNNNNNNNNNNNNNNNNNN NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN ANNNNNNNNNNNNNNNNNNNNNNNN NNNNNNNNNNNNNNNNNNNNNNNN SENNINN NN ANONSENNUNNINN NNNNNNN NNNNNNNNNNNNNNN AIR CONDENSER DONNA WATER CONDENSER COMPRESSOR HOT GAS VALVE SV1329 Figure 2. COMPONENT LOCATION/IDENTIFICATION Use and Care Guide Manitowoc SEQUENCE OF OPERATION INITIAL START-UP OR START-UP AFTER AUTOMATIC SHUT-OFF 1. Before the ice machine starts, the water pump and water dump solenoid are energized for 45 seconds to completely purge the sump trough of old water. This feature ensures that the ice making cycle starts with fresh water. 2. The compressor and fan motor (air-cooledmodels) start after the water pump and water dump valve de-energize. Figure 3. FREEZE SEQUENCE FREEZE SEQUENCE 3. The water pump restarts after a 30 second delay. When the water pump is running, an even flow of water is directed across the evaporator and into cach cube cell, where it freezes. When sufficient ice has formed, the water flow contacts the ice thickness probe. After approximately seven seconds, the harvest sequence is initiated HARVEST SEQUENCE 5. a. Both hot gas valves open, diverting hot refrig erant gas into the evaporators. b. "The water dump solenoid is energized for 45 seconds to purge the water in the sump trough. After the 45 second purge, the water pump and water dump valve de-energize. 000 Figure 4. HARVEST SEQUENCE 6. "The hot refrigerant gas warms the evaporator,calis ing the cubes to slide, as a unit off the evaporators and into the storage bin. The sliding sheet of cubes swings the water curtain out, activating the bin switch. The momentary opening of the bin switch terminates the harvest sequence and returns the ice machine to the freeze sequence (Steps 3-4). AUTOMATIC SHUT-OFF 7. When the storage bin is full, the sheet of cubes fail to clear the water curtain and hold it open. If the water curtain is held open for more than seven seconds, the ice machine will shut off. The ice machine remains off until enough ice has been removed from the storage bin that the ice can drop clear of the water curtain. As the water curtain swings back to operating position, the ice machine restarts. (Step 1-2). Figure 5. AUTOMATIC SHUTOFF SELF CLEANING SYSTEM (SeCS) Refer to page 13. Manitowoc Use and Care Guide OPERATIONAL CHECKS ICE THICKNESS CHECK (Figure 7) The ice thickness probe is factory set to maintain the ice bridge thickness at 1/8". Your Manitowoc ice machine is factory operated and adjusted before shipment. Normally, new installations do not require any adjustment. To ensure proper op cration, always follow the Operational Checks when Starting the ice machine for the first time, after a pro longed "out of service" period, and after cleaning and sanitizing Make sure the water curtain is in place when perform ing the Ice Thickness Check, The water curtain prevents water from splashing out of the water frough. Inspect the bridge connecting the cubes. The bridge should be approximately 1/8" thick. Follow the steps below if any adjustment is needed. Routine adjustments and maintenance procedures out lined in this guide are not covered by the warranty: WATER LEVEL CHECK (Figure 6) 1. Check the water level while the machine is in the freeze mode and the water pump is running. 1. Turn the ice thickness probe adjustment screw clockwise to increase the bridge thickness, or coun terclockwise to decrease the bridge thickness. Note A 1/3 turn of the adjustment screw changes the ice thickness approximately 1/16". WATER PUMP PUMP OUTLET ADJUSTING SCREW = ww WA DOWN WWW SV1331 R LEVEL 1/8"-1/2" E HOUSING - WATER PUMP IMPELLER HOUSING 571 208 THICKNESS Figure 6. WATER LEVEL CHECK Figure 7. ICE THICKNESS CHECK 2. The water level is correct when it is 1/8"-1/2" above the water pump impeller housing. 2. Make sure the ice thickness probe wires and bracket do not restrict movement of the probe. The float valve is factory set for the proper water level. Make the following adjustments if necessary: a. Loosen the two screws on the float valve bracket. b. Raise or lower the float valve assembly as needed, then re-tighten the screws, If further adjustment is necessary, carefully bend the float arm to achieve the correct water level Use and Care Guide Manitowoc SECTION 3 MAINTENANCE precautions that must be followed. Follow a general maintenance schedule to ensure reli able, trouble-free operation and maximum ice produc tion. You are responsible for maintaining the ice machine in accordance with the instructions in this manual. Call your local qualified Manitowoc Service Representative to perform the maintenance if at any time you are either unsure or unaware of the proper procedures and safety We recommend that you follow the maintenance guidelines on a semi-annual basis. Record the date you perform the maintenance procedures in the space pro vided. You can refer to the dates later to remind you to perform the maintenance procedures again. Dates of Maintenance MAINTENANCE GUIDELINES CHART SEMI-ANNUAL MAINTENANCE Page Reference 1. General Ice Machine Inspection 2. Exterior Cleaning 10 3. Cleaning the Condenser Air-Cooled Water-Cooled 4. Interior Cleaning-Self Cleaning System (SeCS") Cleaning Procedures Sanitizing Procedures Removal of Parts for Cleaning Sanitizing 5. Water Treatment Filtration 6. Operational Checks: Water Level Ice Thickness 7. Removal from Service/Winterization GENERAL ICE MACHINE INSPECTION 2. Sponge any dust and dirt off the outside of the ice machine with mild soap and water. Wipe dry with a soft clean cloth. Check all water fittings and lines for leaks. Also, make sure the refrigeration tubing is not rubbing or vibrating against other tubing panels, etc. Do not stack anything (boxes, etc.) on or around the ice machine. Do not cover the ice machine while it is operating. There must be adequate airflow through and around the ice machine to ensure long component life and maximize ice production. A Caution Stainless steel panels should be cleaned with a mild soap or a commercial stainless steel cleaner Do not use cleansers containing bleaching agents. They usually contain chlorine, which stains stainless steel. Heavy stains should be removed with stainless steel wool. Never use plain steel wool or abrasive pads. They will scratch the panels and cause rusting. EXTERIOR CLEANING 1. Clean the area around the ice machine as often as necessary to maintain cleanliness and efficient op eration. Manitowoc Use and Care Guide CLEANING THE CONDENSER If further cleaning is required, use one or both of the following procedures: A WARNING Disconnect the electric power to the ice machine and the remote condenser at the electric service switch box before cleaning the condenser. a. Blow compressed air through the condenser from the inside. Take care not to bend the fan blades. Shine a flashlight through the con denser to check that all the dirt is removed. b. Clean with a commercial condenser coil cleaner, according to the directions and cau tions supplied with the cleaner. AIR-COOLED CONDENSER A dirty condenser restricts airflow, resulting in exces sively high operating temperatures. This reduces ice production and shortens component life. Clean the condenser at least every six months. 3. Straighten any bent condenser fins with a fin comb, Figure 9. CONDENSER Caution The condenser fins are sharp. Use care when clean ing them FIN Note Remove the front cover and pull the bottom of the filter out first for removal. "Come" DOWN The washable aluminum filter is designed to catch dust, dirt, lint, and grease. This helps keep the condenser clean. Clean the filter with a mild soap and water solution TAI ! Figure 9. STRAIGHTEN BENT CONDENSER FINS 4. Carefully wipe off the fan blades and motor with a soft cloth, taking care not to bend the fan blades. Wash excessively dirty fan blades with warm soapy water, then rinse thoroughly. Caution If you are cleaning the condenser fan blades with water cover the fan motor to prevent water damage. SVET WATER-COOLED CONDENSER (AND WATER REGULATING VALVE) The water-cooled condenser and the water regulating valve may require cleaning due to scale build-up. Figure 8. SELF-CONTAINED AIR-COOLED FILTER Lowice production, high water consumption and high operating temperatures and pressures all may be symp toms of restrictions in the condenser water circuit. 2. Clean the outside of the condenser with a soft brush or a vacuum with a brush attachment. Brush or wash the condenser from top to bottom- not from side to side. Be careful not to bend the fins. Shine a flashlight through the condenser to check for dirt between the fins. The cleaning procedures require special pumps and cleaning solutions. Therefore, they must be performed by qualified maintenance or service personnel. Use and Care Guide Manitowoc INTERIOR CLEANING/SANITIZING SELF-CLEANING SYSTEM (SCCS") Set the toggle switch to the OFF position after the ice falls from the evaporator at the end of a Harvest cycle. Or, set the switch to the OFF position and allow the ice to melt off of the evaporator. Clean and sanitize the ice machine every six months for efficient operation. If the ice machine requires more frequent cleaning and sanitizing consult a qualified service company to test the water quality and recom mend appropriate water treatment on installation of AuCS accessory (Automatic Cleaning System). A Caution Never use anything to force ice from the evaporator. Damage may result. 2. To start self-cleaning place the toggle switch in the CLEAN position. The water will flow through the water dump valve and down the drain. A WARNING Use only Manitowoc approved Ice Machine Cleaner (part number 94-0546-3) and Sanitizer (part number 94-0565-3). It is a violation of Federal law to use these solutions in a manner inconsistent with their labeling Read and understand all labels printed on bottles before use. 3. Wait about one minute or until water starts to flow over the evaporator. 4. Add 2 ounces of Manitowoc Ice Machine Cleaner to the water trough. CLEANING PROCEDURES Ice machine cleaner is used to remove lime scale or other mineral deposits. Tt is not used to remove algae or slime. Refer to the section on Sanitizing for the removal of algae and slime. 5. The ice machine Self Cleaning System (SeCS") will automatically time out a ten minute cleaning cycle, followed by six rinise cycles, and then stop. (This cycle lasts approximately 25 minutes.) 6. When the self-cleaning stops, move the switch to the OFF position and proceed to the sanitizing section Caution Do not mix Cleaner and Sanitizer solutions together. It is a violation of Federal law to use these products in a manner inconsistent with their labeling AWARNING Wear rubber gloves and safety goggles (and/or face shield) when handling ice machine cleaner or Sani lizer. Note If required, extremely dirty ice machines may be taken apart for cleaning and sanitizing (Refer to page 15.) Manitowoc Use and Care Guide SANITIZING PROCEDURES Use Sanitizer to remove algae or slime. Do not use it to remove lime scale or other mineral deposits. AUTOMATIC CLEANING SYSTEM (AuCS") ACCESSORY This accessory monitors ice making cycles and intiates self deaning procedures automatically. The Aucs Ac cessory can be set to automatically clean or Sanitize the ice machine every 2, 4 or 12 weeks. WARNING Wear rubber gloves and safety goggles (and/or face shield) when handling ice machine cleaner or sani tizer. Caution Do not mix Cleaner and Sanitizer solutions together. It is a violation of Federal law to use these products in a manner inconsistent with their labeling. A DANGERA Refer to the AuCS Accessory Installation Owner/Operator Use and Care Guide for complete details on the installation, operation, maintenance and cautionary statements of this accessory. Note If needed, extremely dirty ice machines may be taken apart for deaning or sanitizing (Refer to page 15). Automatic Operation The following occurs when the ice machine switch is in the ice making position: 1. The ice machine unitized ice sensor board counts the number of ice harvest cycles The Self Cleaning System (SeCS") is also used for sanilizing 2 The Aucs Accessory automatically interrupts the ice making mode and starts the automatic cleaning mode when the harvest count equals the "fre quency of cleaning" setting of the AucsTM Acces Set the toggle switch to the OFF position after the ice falls from the evaporator at end of a Harvest cycle. Or, set the switch to the OFF position and allow the ice to melt off of the evaporator. 3. When the automatic cleaning mode is complete (approximately 25 minutes), ice making mode re sumes automatically. 2. Place the toggle switch in the CLEAN position. The water will flow through the water dump valve and down the drain 3. Wait about one minute or uintil water starts to flow over the evaporator. Note The harvest count is reset to zero only after the Aucs cycle is completed. It cannot be reset by unplugging the modular wire, changing the switch position, power loss, etc. 4. Add three ounces of Manitowoc Ice Machine Sani lizer to the water trough, 5. The ice machine Self Cleaning System (SeCS) will automatically time out a ten minute sanitizing cy cle, followed by six rinse cycles, and then stop. (This lasts approximately 25 minutes.) Note If the bin requires sanitizing, remove all the ice and Sanitize it with a solution of one ounce of sanitizer to up to four gallons of water. Rinse all sanitized surfaces with clean water. 6. When the self cleaning (sanitizing) cycle stops, move the toggle switch to the ICE position. Use and Care Guide Manitowoc 2. Rinse Cycles (Step 1 and 2 repeated 6 times) (13 minutes, 30 seconds) Manual Start Operation Verify that no ice is on the evaporator surface. (Move the ICE/OFF/CLEAN switch to the OFF position after the ice falls from the evaporator at end of a harvest cycle, or move the switch to the OFF position and allow the ice to melt off of the evaporator.) 1. The water pump Circulates water over the evaporator for 90 seconds. The following occurs when the switch is moved to the cleaning position: 2. "The water dump valve energizes for 45 seconds to dump the rinse water down the drain. 1. The ice machine runs through one rinse cycle and then into the automatic cleaning mode, 3. Changing Switch Position Prior to Completion of Automatic Cleaning Mode 2. The ice machine stops all functions when the auto matic cleaning mode is completed. Move the switch to the ice making position to restart. 1. If the switch is turned off prior to dispensing the cleaner or sanitizer, then switched to: a. Ice Making position, normal ice making begins. b. Clean position, a manual start of automatic cleaning mode begins. Note "The harvest counter for automatic operation is reset to zero after the automatic cleaning mode cycle is complete If the switch is turned off after the cleaner or Sanitizer is dispensed, then switched to: a: Ice Making position, the rinse cycles por tion of the automatic cleaning mode be gins. The ice machine resumes normal ice making operation when rinsing is com plete. SEQUENCE OF OPERATION The ice machine automatically times out a ten minute clean (or Sanitize) cycle, followed by six rinse cycles. The automatic cleaning mode lasts approximately 25 min utes. Note Each time you turn the switch off and back to ice making, the 6 rinse cycles begin again, Note Opening or removing the water curtain stops the automatic cleaning mode. Upon reclosing, the auto matic cleaning mode resumes from the point at which it stopped. b. Clean position, a manual start of automatic cleaning mode begins. 1. Clean (or Sanitize) Cycle (10 minutes, 45 seconds) 1. The water pump circulates water over the evaporator for 10 minutes. The cleaner or sani tizer is dispensed from the AuCSTM Accessory for 10-20 seconds at the beginning of the cycle. Important Once the cleaner or sanitizer solution is dispensed during the clean cycle, you cannot stop the ice machine from running through all six rinse cycles before starting another ice making mode. 2. The water dump valve energizes for 45 seconds to dump the wash water down the drain, Manitowoc Use and Care Guide REMOVAL OF PARTS FOR CLEANING/SANITIZING 5. Thoroughly rinse all of the parts and surfaces with clean water and reinstall the parts. 1. Turn off the water supply to the ice machine at the Water service valve. Note Incomplete rinsing of the ice bridge thickness probe may leave a residue. This could cause the ice ma chine to go into the harvest cycle prematurely. For best results, brush or wipe the probe off while rins ing. Then, thoroughly dry it before replacing it. WARNING Disconnect electric power to the ice machine at the electric switch box before proceeding. 6. Turn the water and electrical supply back on. 2. Remove the water trough, water curtain, water pump, water distribution tube and ice thickness probe. (Refer to the appropriate sections to remove each part) WARNING Wear rubber gloves and safety goggles (and/or face shield) when handling ice machine cleaner or Sanitizer. 3. Soak the removed parts in a properly mixed solu tion: Manitowoc Cleaner - mix 16 ounces of cleaner with one gallon of water. Manitowoc Sanitizer - mix one ounce of sanitizer with four gallons of water. Use a soft-bristle brush (DO NOT USE A WIRE BRUSH) or a sponge to clean the parts. Take care not to damage them Caution Do not mix Cleaner and Sanitizer solutions together. It is a violation of Federal law to use these products in a manner inconsistent with their labeling, A Caution Do not immerse the water pump motor in the clean ing or sanitizing solution. Use the cleaning or sanitizing solution and a brush or sponge to clean the top, sides, and bottom evapo rator extrusions, the inside of the ice machine pan els, and the entire inside of the bin. Use and Care Guide Manitowoc WATER DUMP VALVE REMOVAL The water dump valve normally does not require re moval for cleaning. Follow the instructions listed below to determine if removal is necessary. Important The plunger and the inside of the enclosing tube must be thoroughly dry before reassembling. 1. Remove the top and back panels. 2. Set the ICE/OFF/CLEAN switch to ICE. SPRING STOP 3. Check dump valve's dear plastic outlet drain tube (Figure 12), for leakage while the ice machine is in the freeze mode. PLUNGER 4. If the dump valve is leaking, remove, disassemble and clean it ENCLOSING TUBE 5. Do not remove the dump valve if it is not leaking Following the Self Cleaning (Secs") procedure (page 12) is adequate. Removal Procedure Figure 10. DUMP VALVE DISASSEMBLY A WARNING Disconnect the electric power to the ice machine at the electric service switch box. Remove the valve body. 4. Remove the tubing from the dump valve by twisting the clamps off. b. Remove the two screws securing the dump valve and the mounting bracket. 1. Lift and slide the coil retainer cap from the top of the coil. 2. Leaving the wires attached, lift the coil assembly off the valve body (enclosing tube). Note the position of the coil assembly on the valve before removing it. Make sure the coil is in the same position when reassembling the valve. A WARNING Disconnect the electrical power to the ice machine at the electrical switch box and turn off the water Supply before proceeding ORAN TUBE -20 NOT OLISCONNECT WRES AT COIL 3. Press the enclosing tube's plastic nut down and rotate it 1/4 turn. Remove the enclosing tube, plunger and plastic gasket from the valve body. WATER DUVP The water dump valve can be easily cleaned at this point, without removing the entire valve body. DAAN TUBE You do not need to remove the spring from the plunger when clearing. If the spring is removed, insert the spring's flared end into the slotted opening in the top of the plunger, until it comes in contact with the plunger spring stop. Do not stretch or damage the Spring when cleaning. Figure 11. DUMP VALVE REMOVAL Manitowoc Use and Care Guide Water Pump 1. Disconnect the water pump power cord. Water Trough 1. Remove the screw holding the trough in place. 2. Pull up and out on the water trough to disengage it from the rear brackets. NOTE: To reinstall, slide the trough up into the rear bracket. Then, push down to snap it into place. - PUUF QUTLET AM . Figure 12. WATER PUMP REMOVAL FULL UP 2. Disconnect the hose from the pump outlet, 3. Loosen the two screws which hold the pump mounting bracket to the bulkhead. Figure 14. WATER TROUGH REMOVAL 4. Lift the pump and bracket assembly off the screws. Ice Thickness Probe 1. Remove the ice thickness probe by compressing the side of the probe near the top hinge pin and remov ing it from the bracket. NOTE: The ice thickness probe can be easily cleaned at this point without proceeding to Step 2. Float Valve 1. Turn the valve splash shield counterclockwise one or two turns. Pull the valve forward, off the mount ing bracket 2. Disconnect the water inlet tube from the float valve at the compression fitting 3. Remove the filter screen and cap for cleaning, A WARNING Disconnect the electric power to the ice machine at the electric service switch box before proceeding. 2. If complete removal is required, remove the top cover. Disconnect the wire leads at the connection behind the evaporator wall. Figure 13. ICE THICKNESS PROBE REMOVAL Figure 15. FLOAT VALVE REMOVAL Use and Care Guide Manitowoc Water Distribution Tube 1. Disconnect the water hose from the distribution tube. 2. Loosen both thumbscrews which hold the distribu tion tube in place. 3. Lift the right side up to dear the locating pin, then slide it back and to the right. 4. Disassemble for cleaning. a. Twist both ends of the inner tube until the tabs line up with the keyways. b. Pull the inner tube ends outward. Important Do not force this removal. Be sure the locating pin clears the hole before sliding the tube out. Figure 17. WATER DISTRIBUTION TUBE DISASSEMBLY Water Curtain 1. Gently flex the curtain in the center and remove it from the right side. 2. Slide the left pin out. 190 Figure 16. WATER DISTRIBUTION TUBE REMOVAL TH Figure 18. WATER CURTAIN REMOVAL Manitowoc Use and Care Guide WATER TREATMENT/FILTRATION 6. Insert a new cartridge into the housing. Make sure it slips down over the housing standpipe. Local water conditions may require the installation of water treatment to inhibit scale formation, filter sedi ment, and remove chlorine taste and odor. Consult your local dealer or distributor for information on Manitowoc's full line of Tri-Liminator filtration sys tems. 7. Screw the housing onto the cap and hand tighten. Do not over-tighten or use a spanner wrench. 8. Repeat steps 3 through 7 for each filter housing. 9. Turn on the water supply to allow the housing (and filter) to slowly fill with water. Replace the primary filter cartridge every six months to ensure maximum filtration efficiency. The filter gauge indicates if earlier replacement is necessary (a reading below 20 psig). 10. Depress the pressure release button to release trapped air from the housing. Check for leaks. Tri-Liminator systems indude a prefilter, and should not require primary filter replacement prior to six months usage. If replacement is needed, replace the prefilter first REPLACEMENT PROCEDURE (Figure 19) 1. Turn off the water supply at the inlet shut-off valve. 2. Depress the pressure release button to relieve the pressure. 3. Unscrew the housing from the cap (see illustration). 4. Remove the used cartridge from the housing and discard it. VILE TE FILTER Figure 19. WATER FILTRATION 5. Remove the O-ring from the groove in the housing. Wipe the groove and O-ring clean. Relubricate the O-ring with a coating of clean petroleum jelly (Vaseline). Replace the O-ring, and press it down into the groove with two fingers. Use and Care Guide Manitowoc REMOVAL FROM SERVICE/WINTERIZATION REAA PANEL You must take special precautions if the ice machine is to be removed from service for extended periods, or exposed to ambient temperatures of 32°F or below. INSERT SCREWDRIVER BETWEEN BOTTOM SPAING COILS AND PAY UP TO CPEN VALVE LEFT SIDE PANEL ANNNNNNNNNNNNNNNN NNNNNNNNNNNNNNNNNNNNNNN Caution If water is allowed to remain in the ice machine in freezing temperatures, severe damage to some com ponents could result Damage of this nature is not covered by the warranty, WATER REGULATING Self-Contained Air-Cooled Machines 1. Disconnect the electric power at the circuit breaker or the electric service switch. 2. Turn off the water going to the ice machine, 3. Remove the water from the sump trough. Figure 20. MANUALLY OPEN WATER REGULATING VALVE 4. Disconnect the incoming ice making water line, and drain the line at the rear of the ice machine. Blow compressed air in both the incoming water and drain openings in the rear of the machine) until no more water comes out of the float valve and drain. Automatic Cleaning System (AuCS) Accessory Refer to the AuCS Accessory Installation-Owner/Op erator Use and Care Guide for winterization of the AuCS Accessory. 6. Be sure no water is trapped in any of the machine's Water lines, drain lines, distribution tubes, etc. Water-Cooled Machines 1. Perform all the procedures listed under "Self-Con lained Air-Cooled Machines" above. 2. Disconnect the incoming water and drain lines from the water-cooled condenser. 3. Pry open the water regulating valve by inserting a large standard screwdriver between the bottom Spring coils of the valve. Pry the spring upward to open the valve, Figure 20. 4. Hold the valve open and blow compressed air through condenser until no water remains. Manitowoc Use and Care Guide SECTION 4 BEFORE CALLING FOR SERVICE If a problem arises during the operation of your ice machine, follow the checklist below before calling for service: CHECKLIST Problem Ice machine does not operate. Possible Cause To Correct No electrical power to the ice Replace the fuse, reset the aircuit machine. breaker, turn on the main switch. Tripped high pressure cutout. Reset the high pressure cutout, Figure 2, page 7 ICE/OFF/CLEAN switch set Set the switch to ICE. improperly. Water curtain stuck open. Water curtain must swing freely. Figure 18, page 18 Safety Limit Feature is stopping the Refer to the Safety Limit Feature at ice machine. end of this checklist. Ice machine stops and can be restarted by turning the switch off then on again Ice machine does not release ice or is slow to harvest Ice machine does not cycle into harvest mode. NOTE: Ice machine must be in the freeze cycle for six (6) minutes before a harvest cycle can be initiated Ice machine is dirty. Clean and sanitize the ice machine, page 12 Ice machine is not level. Level the ice machine. Air-cooled models: low ambient Minimum ambient temperature is temperature. 35°F. Water regulating valve is leaking Refer to the Water-Cooled during harvest mode (water-cooled Condenser section, page 11. ice machines). Ice thickness probe is dirty, Clean and sanitize the ice machine, page 12. Ice thickness probe wires are Connect the wires. disconnected. Ice thickness probe is out of Adjustice thickness probe Figure 7, adjustment. page 9 Uneven ice fill (thin at top of the Refer to Shallow or incomplete evaporator.) cubes, page 22 Quality of the incoming water is Contact a qualified service poor. company to test the quality of the Water and make appropriate filter recommendations. Water filtration element needs to be Replace the filter. changed. Ice machine is dirty. Clean and sanitize the ice machine, page 12 Water dump valve not working. Disassemble and clean the water dump valve, page 16. Water softener working improperly Repair the water softener. (if installed). Poor quality ice. (Ice is soft or not clear.) Use and Care Guide Manitowoc Problem Possible Cause To Correct Shallow or incomplete cubes, incomplete ice fill pattern on the Evaporator. Ice thickness probe is out of adjustment. Water trough level is too high or too low Water float valve filter screen is. dirty. Water filtration is poor. Adjust ice thickness probe, Figure 7, page 9. Adjust the float valve, Figure 6, page 9. Clean the filter screen, Figure 15, page 17 Replace the filter. Figure 19. Page 19. Hot incoming water. Connect the ice machine to a cold water supply. See the Installation Instructions Leaky water dump valve. Clean water dump valve, page 16. Incorrect incoming water pressure. Water pressure must be 20-80 psi. Ice machine is not level. Level the ice machine. Low ice capacity. Water float valve filter screen is dirty. Clean the filter screen, Figure 15, page 17. Open float valve, Figure 6, page 9. Float valve shut-off is closed. Incoming water supply is shut off. Open the water service valve. Float valve is stuck open. Clean and adjust, Figure 15, page 17. The condenser is dirty. Clean the condenser (air-cooled, page 11, water-cooled, page 11). Maximum ambient temperature is 110°F. High ambient temperature. Provide adequate clearance. Inadequate clearance around the ice machine is causing an airflow restriction. SAFETY LIMIT FEATURE In addition to standard safety controls, such as the high pressure cutout, your Manitowoc ice machine features built-in safety limits which stop the ice machine if conditions exist that may result in a major component failure. Before calling for service, restart the ice machine using the following procedures: 1. a. Move the ICE/OFF/CLEAN switch to OFF and then back to ICE. If the safety limit feature has stopped the ice machine, it will restart after a short delay. Proceed to Step 2 b. If the ice machine does not restart, refer to "Ice Machine Does Not Operate" in the problem checklist. 2. Let the ice machine operate to determine if the condition recurs. a. If the ice machine stops again, the condition recurred. Call for service. b. If the ice machine continues to run, the condition corrected itself. Let the machine run. Manitowoc Use and Care Guide ICE MACHINE WARRANTY Manitowoc lue, Inc., hereinafter referred to as the COMPANY. warrants new Ice Machines manufactured by the COMPANY to be free from defects in material and workmanship under normal use und service for a period of thirty-six (36) months from the date of original installation, and twenty-four (24) additional months on the evaporators and compressors. The obligation of the COMPANY under this warranty is limited to the repair or replacement of parts or assemblies that in the COMPANY'S opinion are defective FO.B. the factory In addition to the component warranty explained above, the COMPANY will pay straight time labor to repair or replace a defective component when failure occurs within thirty-six (36) months from the date of original installation and twenty-four (24) additional months op evaporator and only when such service is performed by a COMPANY Contracted Service Representative or a refrigeration service agency as qualified and authorized by the COMPANY'S local Distributor Time and hourly rate schedules as published from time to time by the COMPANY, apply to all service procedures. Additional expense including, but not limited to, overtime pronuni, travel time, material cost accessing or removal of the ice machine, is the responsibility of the owner along with all maintenance, adjustments, cleaning and ice purchases. The foregoing warranty shall not apply to (1) any part or assembly that has been altered, modified, or changed: (2) any part or assembly that has been subject to misuse, abuse. neglect, or accidents: or (3) any ice machine that has been installed and/or maintained inconsistent with the technical instructions provided by the COMPANY The sixty (60) month compressor warranty, including the thirty-six (36) month labor replacement waranty, shall not apply when the Ice Machine's refrigeration system is modified with a condenser, heat reclaim device, or parts and assemblies other than those manufactured by the COMPANY, unless the COMPANY approves these modifications for specific locations in writing THIS WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES OR GUARANTEES OF ANY KIND. EXPRESSED OR IMPLIED, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE EXCEPT AS PROVIDED IN THIS WARRANTY WITH RE SPECT TO DEFECTS IN MATERIAL AND WORKMANSHIP. This liability of the COMPANY arising out of the sale, use or operation of the COMPANY'S parts and equipment, whether in warranty, contract negligence or strict liability, including claims for special, indirect or consequential damages, shall not in any event exceed the cost of furnishing a replacement for a defective part of assembly as hereinabove provided. Upon the expintion of the warranty period, as hereinabove provided, any such liability shall terminate. The foregoing warranty shall constitute the sole and exclusive liability of the COMPANY. To secure prompt and continuing warranty service, the warranty registration card must be completed and sent to the COMPANY within five (5) days from the installation date. Complete the following and retain for your record: Distributor/Dealer Model Number/Serial Number Installation Date MANITOWOC ICE, INC. 2110 So, 26th St. PO, Box 1720. Manitowoc, WI 54221-1720 Telephone: 920-682-0161 Fax: 920-683-7879 Form 80-0373 (1/91) Effective January 1, 1991 in the United States, Canada, and international markels served by Manitowoc Revised January 2, 1991 MANITOWOC ICE, INC. 2110 South 26th Street, PO, Box 1720, Manitowoc, WI 54221-1720 U.S.A. Telephone: 920-682-0161 FAX: 920-683-7879
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