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Part Number STH047 5/16

WATER-COOLED ICE MACHINES

Ice Machine

Voltage

Phase Cycle

Max. Fuse/

Circuit

Breaker

Total

Amps

K170

115/1/60

15 amp

6.3

208/1/60

15 amp

3.6

230/1/50

15 amp

4.0

K270

115/1/60

15 amp

9.9

208-230/1/60

15 amp

4.7

230/1/50

15 amp

4.7

Содержание KD0172A

Страница 1: ...Part Number STH047 5 16 Undercounter Ice Machines Technician s Handbook This manual is updated as new information and models are released Visit our website for the latest manual www kool aire com...

Страница 2: ......

Страница 3: ...act information for service agents in your area This equipment contains high voltage electricity and refrigerant charge Installation and repairs are to be performed by properly trained technicians awa...

Страница 4: ...he disconnect means to satisfy local codes Refer to rating plate for proper voltage This appliance must be grounded This equipment must be positioned so that the plug is accessible unless other means...

Страница 5: ...on OEM ice storage system with this ice machine contact the bin manufacturer to assure their ice deflector is compatible Remove all removable panels before lifting and installing and use appropriate s...

Страница 6: ...ir between approximately 2 1 and 9 5 by volume LEL lower explosion limit and UEL upper explosion limit An ignition source at a temperature higher than 470 C is needed for a combustion to occur Refer t...

Страница 7: ...chemicals rubber gloves and eye protection and or face shield must be worn DANGER Do not operate equipment that has been misused abused neglected damaged or altered modified from that of original manu...

Страница 8: ...ent Risk of fire shock All minimum clearances must be maintained Do not obstruct vents or openings Failure to disconnect power at the main power supply disconnect could result in serious injury or dea...

Страница 9: ...achine Clearance Requirements 18 Ice Machine Heat of Rejection 18 Leveling the Ice Machine 19 Electrical Requirements 20 Voltage 20 Fuse Circuit Breaker 20 Total Circuit Ampacity 20 Electrical Specifi...

Страница 10: ...iagnosing Ice Thickness Control Circuitry 55 Ice Production Check 58 Installation and Visual Inspection Checklist 60 Water System Checklist 61 Ice Formation Pattern 62 Safety Limit Feature 64 Analyzin...

Страница 11: ...iagnostics 101 Fan Cycle Control 103 High Pressure Cutout HPCO Control 104 Filter Driers 105 Refrigerant Recovery Evacuation 106 Refrigerant Re use Policy 107 Recovery and Recharging Procedures 109 Sy...

Страница 12: ...rol 121 Filter Driers 121 Total System Refrigerant Charge 122 Charts Cycle Times 24 Hr Ice Production and Refrigerant Pressure Charts 123 K170 Self contained Air cooled 124 K270 Self contained Air coo...

Страница 13: ...0172A N A KY0174A N A KR0270A KR0271W KD0272A KD0273W KY0274A KY0275W nWarning An ice machine contains high voltage electricity and refrigerant charge Repairs are to be performed by properly trained r...

Страница 14: ...butor for these optional accessories BIN CASTER Replaces standard legs CLEANER AND SANITIZER Manitowoc Ice Machine Cleaner and Sanitizer are available in convenient 16 oz 473 ml and 1 gal 3 78 l bottl...

Страница 15: ...ial number are listed on the OWNER WARRANTY REGISTRATION CARD They are also listed on the MODEL SERIAL NUMBER DECAL affixed to the ice machine MODEL SERIAL NUMBER PLATE MODEL SERIAL NUMBER PLATE SV168...

Страница 16: ...16 Part Number STH047 5 16 THIS PAGE INTENTIONALLY LEFT BLANK...

Страница 17: ...g equipment or in direct sunlight The location must be capable of supporting the weight of the ice machine and a full bin of ice The location must allow enough clearance for water drain and electrical...

Страница 18: ...cient operation and servicing only Ice Machine Heat of Rejection Series Ice Machine Heat of Rejection Air Conditioning Peak K170 2200 2600 K270 3800 6000 B T U Hour Because the heat of rejection varie...

Страница 19: ...tion 4 Level the ice machine to ensure that the siphon system functions correctly Use a level on top of the ice machine Turn each foot as necessary to level the ice machine from front to back and side...

Страница 20: ...ation The 208 230 1 60 and 230 1 50 ice machines are factory pre wired with a power cord only no plug is supplied FUSE CIRCUIT BREAKER A separate fuse circuit breaker must be provided for each ice mac...

Страница 21: ...uit Breaker Total Amps K170 115 1 60 15 amp 7 0 208 1 60 15 amp 3 5 230 1 50 15 amp 4 0 K270 115 1 60 15 amp 10 7 208 230 1 60 15 amp 5 2 230 1 50 15 amp 5 2 nWarning All wiring must conform to local...

Страница 22: ...WATER COOLED ICE MACHINES Ice Machine Voltage Phase Cycle Max Fuse Circuit Breaker Total Amps K170 115 1 60 15 amp 6 3 208 1 60 15 amp 3 6 230 1 50 15 amp 4 0 K270 115 1 60 15 amp 9 9 208 230 1 60 15...

Страница 23: ...orking Check valves on sink faucets dishwashers etc If water pressure exceeds the maximum recommended pressure 80 psig 5 5 bar obtain a water pressure regulator from your distributor Install a water s...

Страница 24: ...C min 90 F 32 2 C max 20 psi 1 38 bar min 80 psi 5 5 bar max 3 8 Female Pipe Thread 3 8 9 5 mm min inside diameter Condenser Water Inlet 33 F 0 6 C min 90 F 32 2 C max 20 psi 1 38 bar min 150 psi 10 3...

Страница 25: ...of heat rejected and the pressure drop through the condenser and water valves inlet to outlet when using a cooling tower on an ice machine Water entering the condenser must not exceed 90 F 32 2 C Wat...

Страница 26: ...26 Part Number STH047 5 16 THIS PAGE INTENTIONALLY LEFT BLANK...

Страница 27: ...H047 5 16 27 Evaporator Compartment ICE THICKNESS PROBE WATER PUMP ICE DAMPER WATER TROUGH DISTRIBUTION TUBE SV1694A BIN SWITCH MAGNET FLOAT VALVE SIPHON CAP SV1695A Evaporator Compartment Component I...

Страница 28: ...16 ON OFF WASH TOGGLE SWITCH COMPRESSOR COMPARTMENT ACCESS SCREWS CONDENSED AIR FILTER SV1686G K170 Ice Machines ON OFF WASH TOGGLE SWITCH COMPRESSOR COMPARTMENT ACCESS SCREWS CONDENSED AIR FILTER PT...

Страница 29: ...Clean the area around the ice machine as often as necessary to maintain cleanliness and efficient operation Sponge any dust and dirt off the outside of the ice machine with mild soap and water Wipe d...

Страница 30: ...water solution 2 Clean the outside of the condenser with a soft brush or a vacuum with a brush attachment Clean from top to bottom not side to side Be careful not to bend the condenser fins 3 Shine a...

Страница 31: ...nd 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 Cle...

Страница 32: ...move all ice from the bin Step 3 To start a cleaning cycle move the toggle switch to the WASH position Step 4 Add the proper amount of Ice Machine Cleaner to the water trough Model Amount of Cleaner K...

Страница 33: ...Water Pump and Water Distribution Tube C Remove Water Pump Disconnect the water pump power cord Loosen the screws securing the pump mounting bracket to the bulkhead Lift the pump and bracket assembly...

Страница 34: ...out of the back wall by inserting fingernails or a flat object between the back wall and the grommet and prying forward Pull the bulkhead grommet and wire forward until the connector is accessible the...

Страница 35: ...TUBE 1 2 3 SV1630 Water Distribution Tube Removal Loosen the two thumbscrews which secure the distribution tube Lift the right side of the distribution tube up off the locating pin then slide it back...

Страница 36: ...ber STH047 5 16 Disassembly Twist both of the inner tube ends until the tabs line up with the keyways Pull the inner tube ends outward KEYWAY INNER TUBE TAB INNER TUBE SV1211 Water Distribution Tube D...

Страница 37: ...COMPRESSION FITTING FLOAT VALVE BRACKET SHUT OFF VALVE CAP AND FILTER SCREEN SPLASH SHIELD FLOAT SV1695 2 Float Valve Removal Pull the float valve forward and off the mounting bracket Disconnect the w...

Страница 38: ...remove from the bottom of the water trough Remove the upper thumbscrew While supporting the water trough remove the two thumbscrews from beneath the water trough Remove the water trough from the bin...

Страница 39: ...mb Pull ice damper forward when the right hand ice damper pin disengages STEP 1 STEP 2 STEP 3 SV1742A Installation Place ice damper pin in left hand mounting bracket and apply pressure toward the left...

Страница 40: ...nst the bin door pull down on the rear of each bin door track until the door pins clear the stop tabs Slide the rear door pins off the end and then below the door track Slide bin door forward allowing...

Страница 41: ...the foaming stops use a soft bristle brush sponge or cloth not a wire brush to carefully clean the parts Soak the parts for 5 minutes 15 20 minutes for heavily scaled parts Rinse all components with...

Страница 42: ...aporator plastic parts including top bottom and sides Bin bottom sides and top Do not rinse the sanitized areas Step 13 Replace all removed components Step 14 Reapply power and water to the ice machin...

Страница 43: ...ts in the sanitizer water solution Do not rinse parts after sanitizing Step 19 Use 1 2 of the sanitizer water solution to sanitize all foodzone surfaces of the ice machine and bin Use a cloth or spong...

Страница 44: ...ered by the warranty Follow the applicable procedure below Self contained Air cooled Models 1 Disconnect the electric power at the circuit breaker or the electric service switch 2 Turn off the water s...

Страница 45: ...connect the incoming water and drain lines from the water cooled condenser 3 Insert a large screwdriver between the bottom spring coils of the water regulating valve Pry upward to open the valve SV162...

Страница 46: ...46 Part Number STH047 5 16 THIS PAGE INTENTIONALLY LEFT BLANK...

Страница 47: ...and Harvest Sequences The fan motor is wired through a fan cycle pressure control therefore it may cycle on and off The compressor and condenser fan motor are wired through the relay As a result any t...

Страница 48: ...nd re closing of the bin switch terminates the Harvest Sequence and returns the ice machine to the Freeze Sequence steps 3 4 AUTOMATIC SHUT OFF 6 Automatic Shut off When the storage bin is full at the...

Страница 49: ...OF OPERATION Control Board Relays Relay Length of Time 1 Water Pump 2 Harvest Valve 3 Relay Coil 3A Compressor 3B Compressor Fan Motor Initial Start up 1 Water purge off on off off off 15 seconds 2 Re...

Страница 50: ...rol Board Relays Relay Length of Time 1 Water Pump 2 Harvest Valve 3 Relay Coil 3A Compressor 3B Compressor Fan Motor Harvest Sequence 5 Harvest off on on on on Bin switch activation Automatic Shut of...

Страница 51: ...level in the sump trough drops When the siphon action stops the float valve refills the water trough to the correct level Follow steps 1 through 6 under water level check to verify the siphon system f...

Страница 52: ...B Raise or lower the float valve assembly as necessary then tighten the screws 5 Move the main ON OFF WASH toggle switch to the OFF position The water level in the trough will rise above the standpipe...

Страница 53: ...Part Number STH047 5 16 53 ADJUSTING SCREW SV3114 1 8 ICE BRIDGE THICKNESS SV3113 Ice Thickness Adjustment 2 Make sure the ice thickness probe wire and bracket does not restrict movement of the probe...

Страница 54: ...ard fuse is okay 3 If the bin switch light functions the fuse is okay 4 Verify the bin switch functions properly A defective bin switch can falsely indicate a full bin of ice 5 Verify ON OFF WASH togg...

Страница 55: ...E CONNECTION GROUND JUMPER WIRE BIN SWITCH LIGHT GREEN HARVEST LIGHT RED SV1592i Step 2 Jumper wire connected from probe to ground Monitoring Harvest Light Correction The harvest light comes on and 6...

Страница 56: ...e connected from control board terminal to ground Monitoring Harvest Light Correction The harvest light comes on and 6 10 seconds later ice machine cycles from freeze to harvest The ice thickness prob...

Страница 57: ...rom the control board terminal ICE THICKNESS PROBE DISCONNECT PROBE WIRE BIN SWITCH LIGHT GREEN HARVEST LIGHT RED SV1592J_2 Step 2 Disconnect probe from control board terminal Monitoring Harvest Light...

Страница 58: ...sump trough ____ 2 Refer to the appropriate 24 Hour Ice Production Chart Use the operating conditions determined in step 1 to find published 24 Hour Ice Production _____ Times are in minutes Example 1...

Страница 59: ...ith the 24 Hour Ice Production Charts may be used 4 Compare the results of step 3 with step 2 Ice production is normal when these numbers match closely If they match closely determine if Another large...

Страница 60: ...IST Ice machine is not level Level the ice machine Condenser is dirty Clean the condenser Water filtration is plugged if used Install a new water filter Water drains are not run separately and or are...

Страница 61: ...increase the water pressure Incoming water temperature is not between 35 F 1 7 C and 90 F 32 2 C If too hot check the hot water line check valves in other store equipment Water filtration is plugged...

Страница 62: ...overflow pipe a faulty water float valve a low refrigerant charge etc OUTLET INLET OUTLET INLET K170 K270 Examples of Evaporator Tubing Routing Normal Ice Formation Ice forms across the entire evapora...

Страница 63: ...able lack of ice formation at the inlet of the evaporator Examples The ice at the outlet of the evaporator reaches the correct thickness but there is no ice formation at all at the inlet of the evapor...

Страница 64: ...rocedure 1 Move the ON OFF WASH switch to OFF and then back to ON 2 If the safety limit feature has stopped the ice machine it will restart after a short delay Proceed to step 4 3 If the ice machine d...

Страница 65: ...ing the Stand by Mode the harvest light will be flashing continuously and a safety limit indication can be viewed If the same safety limit is reached a second time the problem has reoccurred the ice m...

Страница 66: ...mit indication A continuous run of 100 harvests automatically erases the safety limit code The control board will store and indicate only one safety limit the last one exceeded If the toggle switch is...

Страница 67: ...are designed to stop the ice machine prior to major component failures most often a minor problem or something external to the ice machine This may be difficult to diagnose as many external problems...

Страница 68: ...tion and Visual Inspection Checklist on page 60 Water System Water Level set too high water escaping through over flow tube Low water pressure 20 psig min High water pressure 80 psig max High water te...

Страница 69: ...ischarge air re circulation Dirty condenser fins Non OEM components Improper refrigerant charge Defective compressor TXV starving or flooding check bulb mounting Non condensable in refrigeration syste...

Страница 70: ...let drain Water freezing behind evaporator Plastic extrusions and gaskets not securely mounted to the evaporator Low water pressure 20 psig min Loss of water from sump area Clogged water distribution...

Страница 71: ...res Freeze Cycle ______ Harvest Cycle ______ 3 Perform an actual discharge pressure check Freeze Cycle PSIG Harvest Cycle PSIG Beginning of Cycle __________ __________ Middle of Cycle __________ _____...

Страница 72: ...ondensable in system Wrong type of refrigerant Other Non OEM components in system High side refrigerant lines component Restricted before mid condenser Freeze Cycle Discharge Pressure Low Checklist Im...

Страница 73: ...erature entering the ice machine changes These variables also determine the freeze cycle times To analyze and identify the proper suction pressure drop throughout the freeze cycle compare the publishe...

Страница 74: ...ze Cycle Suction Pressure psig In the example the proper suction pressure should be approximately 39 psig at 7 minutes 30 psig at 12 minutes etc 3 Perform an actual suction pressure check at the begin...

Страница 75: ...0 Discharge Pressure Discharge pressure is too high and is affecting suction pressure refer to Discharge Pressure High Checklist on page 72 Improper Refrigerant Charge Overcharged Wrong type of refrig...

Страница 76: ...Pressure Low Checklist Improper Refrigerant Charge Undercharged Wrong type of refrigerant Other Non OEM components in system Improper water supply over evaporator refer to Water System Checklist on p...

Страница 77: ...arvest valve is not used during the freeze cycle The harvest valve is de energized closed preventing refrigerant flow from the receiver into the evaporator 2 Allows refrigerant vapor to enter the evap...

Страница 78: ...INS OPEN IN THE FREEZE CYCLE Symptoms of a harvest valve remaining partially open during the freeze cycle can be similar to symptoms of an expansion valve float valve or compressor problem Symptoms ar...

Страница 79: ...across the harvest valve itself will not work for this comparison The harvest valve outlet is on the suction side cool refrigerant It may be cool enough to touch even if the valve is leaking 3 Feel th...

Страница 80: ...erature of a hot compressor discharge line Hot Hot This is an indication something is wrong as the harvest valve inlet did not cool down during the freeze cycle If the compressor dome is also entirely...

Страница 81: ...ese temperatures must be within 7 F 4 C of each other Use this procedure to document freeze cycle inlet and outlet temperatures 1 Use a quality temperature meter capable of taking temperature readings...

Страница 82: ...temperatures affect the maximum discharge line temperature Higher ambient air temperatures at the condenser higher discharge line temperatures at the compressor Lower ambient air temperatures at the c...

Страница 83: ...valve sensing bulb is positioned and secured correctly Discharge Line Temperature Below 150 F 66 C at End of Freeze Cycle Ice machines that have a flooding expansion valve will have a maximum discharg...

Страница 84: ...rts checklists and other references to eliminate refrigeration components not listed and external items and problems that will cause good refrigeration components to appear defective The tables list f...

Страница 85: ...ll information listed Each item in this column has supporting reference material While analyzing each item separately you may find an external problem causing a good refrigerant component to appear ba...

Страница 86: ...of refrigerant If the problem is corrected the ice machine is low on charge Find the refrigerant leak The ice machine must operate with the nameplate charge If the leak cannot be found proper refrige...

Страница 87: ...ed capacity Installation and Water System All installation and water related problems must be corrected before proceeding with chart Ice Formation Pattern Ice formation is extremely thin on top of eva...

Страница 88: ...scharge pressure is High or Low refer to freeze cycle high or low discharge pressure problem checklist to eliminate problems and or components not listed on this table before proceeding Freeze Cycle S...

Страница 89: ...mpressor discharge line is HOT Discharge Line Temp Record freeze cycle discharge line temp at the end of freeze cycle Discharge line temp 150 F 66 C or higher at the end of freeze cycle Discharge line...

Страница 90: ...poor Replace the filter Water softener is working improperly if applicable Repair the water softener Poor incoming water quality Contact a qualified company to test the quality of the incoming water...

Страница 91: ...20 F 39 C Water inlet valve filter screen is dirty Remove the water inlet valve and clean the filter screen Water inlet valve stuck open or leaking Turn off ice machine if water continues to enter ice...

Страница 92: ...eral buildup Clean and sanitize the ice machine Ambient temperature is too high or low Ambient temperature must be between 50 F and 110 F 10 C and 43 C Compressor relay inoperable No voltage to coil o...

Страница 93: ...l times Removing the control board fuse or moving the toggle switch to OFF will not remove the power supplied to the control board Check Procedure 1 If the bin switch light is on with the ice damper c...

Страница 94: ...or 7 seconds the ice machine shuts off The ice machine remains off until enough ice is removed from the storage bin to allow the sheet of cubes to drop clear of the ice damper As the ice damper swings...

Страница 95: ...n switch wires 3 Cycle the bin switch open and closed numerous times by opening and closing the water curtain NOTE To prevent misdiagnosis Always use the water curtain magnet to cycle the switch a lar...

Страница 96: ...itch wires in control box 3 Insert a small screwdriver through the hole located in the top of the bin switch and depress mounting tab slightly 4 While depressing mounting tab roll bin switch to right...

Страница 97: ...is present A good test is to install a known good substitute capacitor Use a capacitor tester when checking a suspect capacitor Clip the bleed resistor off the capacitor terminals before testing RELAY...

Страница 98: ...pect the toggle switch for correct wiring 2 Isolate the toggle switch by disconnecting all wires from the switch or by disconnecting the Molex connector from the control board 3 Check across the toggl...

Страница 99: ...f harvest The control board locks the ice machine in the freeze cycle for six minutes If water contacts the ice thickness probe during these six minutes the harvest light will come on to indicate that...

Страница 100: ...ge connecting the cubes It should be about 1 8 3 2 mm thick 2 If adjustment is necessary turn the ice thickness probe adjustment screw clockwise to increase bridge thickness or counterclockwise to dec...

Страница 101: ...he wires from the compressor terminals 2 The resistance values between C and S and between C and R when added together should equal the resistance value between S and R 3 If the overload is open there...

Страница 102: ...ssures do not move the compressor is seized Replace the compressor If the pressures move the compressor is turning slowly and is not seized Check the capacitors and relay Compressor Drawing High Amps...

Страница 103: ...connect electrical power to the ice machine at the electrical service disconnect 2 Verify fan motor windings are not open or grounded and fan spins freely 3 Connect manifold gauges to ice machine 4 Ho...

Страница 104: ...O leaving wires attached 4 On water cooled models close the water service valve to the water condenser inlet On self contained air cooled models disconnect the fan motor 5 Set ON OFF WASH switch to ON...

Страница 105: ...drier has dirt retaining filtration with fiberglass filters on both the inlet and outlet ends This is very important because ice machines have a back flushing action that takes place during every har...

Страница 106: ...laim To reprocess refrigerant to new product specifications see below by means which may include distillation A chemical analysis of the refrigerant is required after processing to be sure that produc...

Страница 107: ...the use of contaminated recovered or recycled refrigerant is the sole responsibility of the servicing company Koolaire approves the use of 1 New Refrigerant Must be of original nameplate type 2 Reclai...

Страница 108: ...acuated and recharged properly following failure s Whether the system has been contaminated by this failure Compressor motor burnouts and improper past service prevent refrigerant re use Refer to Syst...

Страница 109: ...the use of contaminated refrigerant Damage resulting from the use of contaminated refrigerant is the sole responsibility of the servicing company Importan Replace the liquid line drier before evacuat...

Страница 110: ...and perform a standing vacuum leak check NOTE Check for leaks using a halide or electronic leak detector after charging the ice machine Follow the Charging Procedures below CHARGING PROCEDURES Import...

Страница 111: ...he charging hoses A Run the ice machine in freeze cycle B Close the high side service valve at the ice machine C Open the low side service valve at the ice machine when supplied or disconnect the low...

Страница 112: ...f system contamination Obvious moisture or an acrid odor in the refrigerant indicates contamination If either condition is found or if contamination is suspected use a Total Test Kit from Totaline or...

Страница 113: ...cid oil test shows contamination No burnout deposits in open compressor lines Mild contamination cleanup procedure Mild Compressor Burnout symptoms Oil appears clean but smells acrid Refrigeration tes...

Страница 114: ...normal evacuation procedure except replace the evacuation step with the following A Pull vacuum to 1000 microns Break the vacuum with dry nitrogen and sweep the system Pressurize to a minimum of 5 ps...

Страница 115: ...nded for this procedure This will prevent CFC release 6 Install a new compressor and new start components 7 Install suction line filter drier in front of compressor 8 Install a new liquid line drier 9...

Страница 116: ...ess than 2 psig the filter drier should be adequate for complete cleanup B If the pressure drop exceeds 2 psig change the suction line filter drier and the liquid line drier Repeat until the pressure...

Страница 117: ...around the tubing as far from the pressure control as feasible See the figure on next page Clamp down on the tubing until the pinch off is complete nWarning Do not unsolder a defective component Cut...

Страница 118: ...118 Part Number STH047 5 16 FIG A PINCHING OFF TUBING FIG B REROUNDING TUBING SV1406 Using Pinch Off Tool...

Страница 119: ...is made with the stop screw approximately 2 5 6 3 cm Caution Do not move base past the stop screw tubing damage could result 4 Remove right hand screw securing condenser to base 5 Pivot condenser forw...

Страница 120: ...120 Part Number STH047 5 16 THIS PAGE INTENTIONALLY LEFT BLANK...

Страница 121: ...itch The switch is connected into a varying low D C voltage circuit Fan Control Cycle Model Cut in Close Cut out Open K170 275 psig 5 225 psig 5 K270 250 psig 5 200 psig 5 High Pressure Cutout HPCO Co...

Страница 122: ...ormation is for reference only Refer to the ice machine serial number tag to verify the system charge Serial plate information overrides information listed on this page Model Air Cooled Water Cooled R...

Страница 123: ...al inspection water system checklist ice formation pattern safety limits comparing evaporator inlet outlet temperatures harvest valve analysis discharge and suction pressure analysis Ice production ch...

Страница 124: ...Condenser F C Water Temperature F C 50 10 70 21 90 32 70 21 175 NA 130 80 27 NA 150 NA 90 32 150 130 115 100 38 NA NA 97 Based on average ice slab weight of 2 44 2 75 lb 1107 1247 g Regular cube dera...

Страница 125: ...ir Temp Entering Condenser F C Water Temperature F C 50 10 70 21 90 32 70 21 280 245 220 80 27 275 240 215 90 32 250 215 190 100 38 225 190 165 Based on average ice slab weight of 2 44 2 75 lb 1107 12...

Страница 126: ...0 255 235 80 27 285 250 230 90 32 280 245 225 100 38 275 240 220 Based on average ice slab weight of 2 44 2 75 lb 1107 1247 g Regular cube derate is 7 Condenser Water Consumption 90 32 Air Temperature...

Страница 127: ...fore working on electrical circuitry Wiring Diagram Legend The following symbols are used on all of the wiring diagrams Internal Compressor Overload Some models have external compressor overloads Fan...

Страница 128: ...Part Number STH047 5 16 K170 K270 WIRING DIAGRAM NOTE Diagram shown in the freeze cycle L1 L2 GND 23 27 18 29 19 7 10 5 30 4 1 22 20 21 15 2 7 23 3 13 8 6 5 9 14 4 32 3 2 21 20 24 12 25 10 11 C S R 11...

Страница 129: ...lean Switch 5 Bin Switch 6 Bin Thermostat 7 High Pressure Cut Out 18 Contactor Coil 19 Contactor Contacts 20 Compressor 21 Compressor Relay 23 Compressor Start Capacitor 25 Compressor Overload 27 Cond...

Страница 130: ...130 Part Number STH047 5 16 Electronic Control Boards 10 AMP FUSE DC VOLTAGE ELECTRICAL PLUG ICE THICKNESS PROBE BIN SWITCH LIGHT HARVEST LIGHT AC LINE VOLTAGE ELECTRICAL PLUG...

Страница 131: ...art Number STH047 5 16 131 K170 K270 TUBING SCHEMATIC HEAT EXCHANGER AIR OR WATER CONDENSER DRIER RECEIVER WATER COOLED ONLY EXPANSION VALVE HARVEST SOLENOID VALVE EVAPORATOR COMPRESSOR STRAINER SV302...

Страница 132: ...nuing product improvement may necessitate change of specifications without notice Part Number STH047 5 16 Every new piece of Manitowoc Foodservice equipment comes with KitchenCare and you choose the l...

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