Manitowoc EC18 Technician'S Handbook Download

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Cycle Times/24 Hour Ice Production and
Refrigerant Pressure Charts

EC18 Self-Contained Air-Cooled — Standard Cube

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90

EC20 (With Timer) Self-Contained Air-Cooled —

Standard Cube . . . . . . . . . . . . . . . . . . . . . . . . . 93

EC20 (With Timer) Self-Contained Air-Cooled —

Large Cube . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96

EC20 (Without TImer) Self-Contained Air-Cooled —

Standard Cube . . . . . . . . . . . . . . . . . . . . . . . . . 99

EC30 Self-Contained Air-Cooled — Standard Cube

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102

EC30 Self-Contained Air-Cooled — Large Cube

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105

EC30 (Serial Break not available) Self-Contained

Air-Cooled — Standard Cube . . . . . . . . . . . . . 108

EC30 (Serial Break not available) Self-Contained

Air-Cooled — Large Cube. . . . . . . . . . . . . . . . 111

EC40 Self-Contained Air-Cooled — Standard Cube

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114

EC40 Self-Contained Air-Cooled — Large Cube

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117

EC40 Self-Contained Water-Cooled — Standard

Cube . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120

EC40 Self-Contained Water-Cooled — Large Cube

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123

EC50 Self-Contained Air-Cooled — Standard Cube

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126

EC50 Self-Contained Air-Cooled — Large Cube

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129

EC50 Self-Contained Water-Cooled — Standard

Cube . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132

EC50 Self-Contained Water-Cooled — Large Cube

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135

Summary of Contents for EC18

Page 1: ...cian s Handbook This manual is updated as new information and models are released Visit our website for the latest manual www manitowocice com America s 1 Selling Ice Machine EC Models Manitowoc Ice P N 80 1520 3 9 10 ...

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Page 3: ...hine Throughout this handbook you will see the following types of safety notices Warning Text in a Warning box alerts you to a potential personal injury situation Be sure to read the Warning statement before proceeding and work carefully Caution Text in a Caution box alerts you to a situation in which you could damage the ice machine Be sure to read the Caution statement before proceeding and work...

Page 4: ...his handbook you will see the following types of procedural notices NOTE Text set off as a Note provides you with simple but useful extra information about the procedure you are performing Important Text in an Important box provides you with information that may help you perform a procedure more efficiently Disregarding this information will not cause damage or injury but may slow you down as you ...

Page 5: ...oc Ice Inc We will be happy to provide assistance Important Routine adjustments and maintenance procedures outlined in this manual are not covered by the warranty Warning PERSONAL INJURY POTENTIAL Do not operate equipment that has been misused abused neglected damaged or altered modified from that of original manufactured specifications Warning POTENTIAL PERSONAL INJURY SITUATION This ice machine ...

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Page 7: ...equirements 5 Electrical Specifications 6 Power Consumption kwh per 24 hours 8 Power Consumption kwh per 24 hours 9 Ice Machine Heat of Rejection 10 Component Identification Component Removal 13 Spray Bar 17 Maintenance Cleaning Sanitizing Procedure 20 Operation Sequence Of Operation 25 Ice Cube Thickness Check 28 Cube Shape 29 ...

Page 8: ...Water Inlet Valve Won t Energize 43 Ice Machine Prematurely Harvests 44 Ice Machine Will Not Harvest 45 SCR Timer Models 46 Water Pump Won t Run 46 Hot Gas Valve Won t Energize 47 Water Inlet Valve Won t Energize 48 Ice Machine Prematurely Harvests 49 Ice Machine Will Not Harvest 50 Water System Checklist 51 Ice Production Check 52 Analyzing Discharge Pressure 53 Discharge Pressure High Checklist ...

Page 9: ...or Mechanical Timer 69 S C R Timer 70 Low Ambient Adjustment For SCR Timer 71 High Pressure Cutout HPCO Control 72 Hot Gas Valve 73 Refrigerant 77 Recover Evacuation Charging 77 System Contamination Cleanup 80 Mild System Contamination Cleanup 82 Severe System Contamination Cleanup Procedure 83 Filter Driers 85 Total System Refrigeration Charge 86 ...

Page 10: ...Air Cooled Large Cube 105 EC30 Serial Break not available Self Contained Air Cooled Standard Cube 108 EC30 Serial Break not available Self Contained Air Cooled Large Cube 111 EC40 Self Contained Air Cooled Standard Cube 114 EC40 Self Contained Air Cooled Large Cube 117 EC40 Self Contained Water Cooled Standard Cube 120 EC40 Self Contained Water Cooled Large Cube 123 EC50 Self Contained Air Cooled ...

Page 11: ...e 147 EC80 Self Contained Air Cooled Standard Cube 150 EC80 Self Contained Air Cooled Large Cube 153 EC80 Self Contained Water Cooled Standard Cube 156 EC80 Self Contained Water Cooled Large Cube 159 Diagrams Wiring Diagram 163 Mechanical Timer Models 163 SCR Models 164 No Timer Models 165 Tubing Schematics 166 EC18 EC20 EC30 EC40 Tubing Schematic 166 EC50 EC65 EC80 Tubing Schematic 167 ...

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Page 13: ...he following models Self Contained Air Cooled Water Cooled ECS018A ECS020A ECS020W ECG020A ECG020W ECS030A ECS030W ECG030A ECG030W ECS040A ECS040W ECG040A ECG040W ECS050A ECS050W ECG050A ECG050W ECS065A ECS065W ECG065A ECG065W ECS080A ECS080W ECG080A ECG080W ...

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Page 15: ... supporting the weight of the ice machine and a full bin of ice The location must allow enough clearance for water drain and electrical connections in the rear of the ice machine The location must not obstruct airflow through or around the ice machine condenser airflow is in and out the front Refer to the chart below for clearance requirements NOTE The ice machine may be built into a cabinet There...

Page 16: ...are working Check valves on sink faucets dishwashers etc If water pressure exceeds the maximum recommended pressure 5 bar 500 kPA install a water pressure regulator Install a water shut off valve Drain Connections Drain lines must have a 2 5 cm per meter drop and must not create traps The floor drain must be large enough to accommodate drainage from all drains Caution The ice machine must be prote...

Page 17: ...rd only no plug is supplied Fuse Circuit Breaker A separate fuse circuit breaker must be provided for each ice machine An electrical disconnect switch must be provided if the ice machine is hard wired wired without a plug Total Circuit Ampacity The total circuit ampacity is used to help select the wire size of the electrical supply The wire size or gauge is also dependent upon location materials u...

Page 18: ...r Total Amps EC18 115 60 1 NA NA 230 50 1 10 amp 2 2 NA NA 230 60 1 10 amp 2 2 NA NA EC20 115 60 1 115 60 1 NA 230 50 1 10 amp 2 5 230 50 1 10 amp 2 3 230 60 1 10 amp 2 5 230 60 1 10 amp 2 3 EC30 115 60 1 115 60 1 230 50 1 10 amp 3 4 230 50 1 10 amp 3 2 230 60 1 10 amp 3 4 230 60 1 10 amp 3 2 EC40 230 50 1 10 amp 3 4 230 50 1 10 amp 3 1 230 60 1 10 amp 3 4 230 60 1 10 amp 3 1 ...

Page 19: ... 4 0 230 50 1 10 amp 3 7 230 60 1 10 amp 4 0 230 60 1 10 amp 3 7 EC65 115 60 1 115 60 1 230 50 1 10 amp 4 2 230 50 1 10 amp 3 8 230 60 1 10 amp 4 2 230 60 1 10 amp 3 8 EC80 115 60 1 115 60 1 230 50 1 10 amp 4 4 230 50 1 10 amp 4 0 230 60 1 10 amp 4 4 230 60 1 10 amp 4 0 ...

Page 20: ...ter Temp 25 15 32 21 43 32 ECS18A 6 4 6 5 6 8 ECS20A 7 1 7 4 7 8 ECG20A 9 2 9 8 10 5 ECS20W 6 2 6 3 6 4 ECG20W 6 0 6 0 6 2 ECS30A 10 0 10 4 11 1 ECG30A 7 1 7 4 7 8 ECS30W 8 9 8 9 9 2 ECG30W 8 9 8 9 8 9 ECS40A 11 1 11 6 12 3 ECG40A 11 0 11 5 12 2 ECS40W 9 5 9 4 9 2 ECG40W 9 2 9 4 9 2 ...

Page 21: ... Temp 25 15 32 21 43 32 ECS50A 12 9 13 3 14 4 ECG50A 12 6 13 0 14 0 ECS50W 11 1 11 2 11 5 ECG50W 11 0 10 9 11 4 ECS65A 12 6 13 1 14 1 ECG65A 12 9 13 2 14 1 ECS65W 11 2 11 3 11 7 ECG65W 11 0 10 9 11 4 ECS80A 15 4 16 3 17 4 ECG80A 15 1 15 8 16 9 ECS80W 13 6 13 8 13 9 ECG80W 13 2 13 4 13 7 ...

Page 22: ... Machine Heat of Rejection Air Conditioning Peak EC18 1 150 2 300 EC20 1 400 2 600 EC30 1 900 3 300 EC40 2 100 4 100 EC50 2 600 5 000 EC65 2 900 5 000 EC80 4 300 7 400 BTU Hour Because the heat of rejection varies during the ice making cycle the figure shown is an average ...

Page 23: ...Part Number 80 1479 3 10 10 11 Component Identification Water Curtains Bin Thermostat On Off Wash Fill Toggle Switch Air Cooled Condenser Water Trough Evaporator Thermostat ...

Page 24: ...12 Part Number 80 1479 3 10 10 Evaporator Ice Chute Spray Bar Spray Nozzles Toggle Switch ...

Page 25: ...L Top Cover For easiest access to the evaporator compartment the top cover can be removed 1 Remove two screws on the rear of the ice machine 2 Slide top cover back to disengage the three pins from the front panel Remove 2 Screws and Slide Cover Back ...

Page 26: ...orage bin 1 Remove top cover 2 Slide door up until rear pins align with slot in door tracks 3 Lift rear door pins out and slide door up until front door pins align with slot 4 Lift door out of door track Align Door Pins With Track Slots Then Lift Door Out Of Track ...

Page 27: ... Removal of the bin door is not required but enhances access 1 Grasp one end of the ice curtain and lift up 2 Pivot water curtain and disengage remaining end 3 To re install into ice machine grasp one end of the water curtain install one end pivot the opposite end and pull down into position Make sure tabs are secure in grooves Water Curtain ...

Page 28: ...ront edge inside the water trough or the spray nozzles will not be aligned with the spray holes and spray water will fall into bin 1 Grab protruding spray holes on one end and lift up 2 Pivot ice chute and remove 3 To re install ice chute grasp protruding spray holes and position over Spray Bar Assembly Make sure rear supports are over Spray Bar Assembly and front edge is inside of water trough Ic...

Page 29: ...ove both plastic clips on water inlet tubing by grasping both ears on clip and separating 3 Apply food grade lubricate to ease re assembly of spray bar components when necessary 4 To re install spray bar position water inlet tubing on inlet ports and squeeze clips until tight 5 Reposition assembly on water trough seat NOTE Nozzles and inserts can be removed for cleaning by unscrewing nozzles Inser...

Page 30: ... overflow tube is located in the evaporator water sump 1 Remove shutters and ice chute 2 Lift spray bar or disconnect and remove for easiest access 3 Pull up on over flow tube to remove To replace plug insert in hole and push with force to make a tight seal Overflow Tube ...

Page 31: ...e company to test the water quality and recommend appropriate water treatment An extremely dirty ice machine must be taken apart for cleaning and sanitizing Caution Use only approved Ice Machine Cleaner and Sanitizer Read and understand all labels printed on bottles before use Do not mix Ice Machine Cleaner and Sanitizer solutions together Warning Wear rubber gloves and safety goggles and or face ...

Page 32: ... switch to the OFF position and allow the ice to melt off the evaporator Step 3 Remove all ice from the bin Step 4 Remove all parts as described in the Component Identification Removal section Step 5 Take all components to sink and with 2 liters Cleaner Water mixture clean all components with a soft nylon brush Disassemble spray bar remove nozzles and inserts and soak for 5 minutes For heavily sca...

Page 33: ...ycle set the toggle switch to the WASH FILL position Step 10 After 10 minutes set the toggle switch to the OFF position Remove water curtain ice chute and over flow tube from the water sump Allow all water to drain from the sump Replace drain plug and fill sump with 2 liters of water Set toggle switch to WASH FILL and circulate for 10 minutes Step 11 After 10 minutes set toggle switch to off posit...

Page 34: ...nts Step 17 To start a sanitizing cycle set the toggle switch to the WASH FILL position Step 18 After 10 minutes set the toggle switch to the OFF position Remove water curtain and ice chute Remove over flow tube from water sump and allow all water to drain from sump Replace drain plug and fill sump with 2 liters of water Set toggle switch to WASH FILL and circulate for 10 minutes Step 19 After 10 ...

Page 35: ...below Follow the applicable procedure below AIR COOLED ICE MACHINES 1 Disconnect the electric power at the circuit breaker or the electric service switch 2 Turn off the water supply 3 Drain the water from the water sump and water pump by disconnecting the water pump tubing 4 Disconnect and drain the incoming ice making water line and disconnect the tubing from the water inlet valve outlet and allo...

Page 36: ...chines 2 Disconnect 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 4 Hold the valve open and blow compressed air through the condenser until water no longer exits ...

Page 37: ...water pump energize Wait 90 seconds for the water system to fill then place the toggle switch in the ice position Models built before July 2010 The water inlet valve energizes in the harvest sequence therefore priming the system with water will allow the system to start up with a full reservoir of water To prime system remove water curtain and add 2 liters of water into the water trough Continued ...

Page 38: ...models is supplied with power throughout the freeze and harvest cycles The freeze cycle continues and the evaporator thermostat reaches the adjusted set point No Timer A harvest cycle starts Mechanical Timer The thermostat energizes the timer motor and the cam starts to turn When the cam cycles through the preset freeze time the relays change position and the harvest cycle is initiated SCR Timer T...

Page 39: ...he hot gas valve and water valve de energize If ice cubes are not contacting the bin thermostat a new freeze cycle is initiated as the water pump energizes and sprays water into the cups SCR Timer The timer reaches the factory setting of 3 minutes 3 Automatic Shut Off When the storage bin is full the ice will come in contact with the bin thermostat which is located inside the bin The machine will ...

Page 40: ...he center Cycle times vary according to surrounding air and water inlet temperatures If cubes are not full large dimple turn evaporator thermostat one increment towards the right to increase cube size Allow ice machine to complete three cycles then check cubes If cubes are too full no dimple turn evaporator thermostat one increment towards the left to decrease cube size Allow ice machine to operat...

Page 41: ...Part Number 80 1479 3 10 1029 CUBE SHAPE The standard cube has an average weight of 19 grams and the large cube has an average weight of 32 grams Notice the normal dimple in the center of the cube ...

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Page 43: ...clean position If the water pump runs begin with toggle switch diagnostics If water pump does not run place toggle switch in ice position 2 Verify correct voltage is present and matches nameplate voltage 3 High pressure switch must be closed on water cooled ice machines move on to 4 if air cooled ice machine If you have voltage at L1 and no voltage at 15 on the Bin Thermostat which is easy to acce...

Page 44: ...he compressor is not it may be tripping on overload or tripping the breaker fuse Check for grounded winding if breaker keeps tripping 1 Toggle switch terminals 5 4 closed wires 49 13 2 Start capacitor and relay function 3 Compressor windings closed 4 Refer to compressor diagnostics 3 2 1 ...

Page 45: ...e 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 will be a resistance reading between S and R and open readings between C and S and between C and R Allow the compressor to cool then check the readings again Check Motor Windings to Ground Check conti...

Page 46: ...6 of the nameplate voltage Compressor Drawing Locked Rotor The three likely causes of this are Low voltage supply check voltage while compressor is trying to start Defective starting component Mechanically seized compressor To determine which you have Install high and low side gauges Try to start the compressor Watch the pressures closely If the pressures do not move the compressor is seized Repla...

Page 47: ...ing a suspect capacitor Clip the bleed resistor off the capacitor terminals before testing Current Relay The relay has a set of contacts that energize and de energize the compressor start winding The contacts on the relay are normally open start winding de energized When power is applied the run winding will be at LRA The relay coil will become an electromagnet and close the contacts start winding...

Page 48: ... WATER PUMP WON T RUN No Timer Models 1 Toggle switch terminals 2 1 closed wires 64 3 2 Evaporator thermostat C L contacts closed wires 3 5 3 Water pump winding closed WATER PUMP EVAP THERMOSTAT TOGGLE SWITCH 3 1 2 6 4 5 8 5 C H L 3 49 65 64 1 2 3 ...

Page 49: ...low setpoint then refer to evaporator thermostat check procedure to verify the evaporator thermostat is operating correctly 2 Line voltage at hot gas valve Wires 6 7 Yes Replace hot gas valve coil No Refer to evaporator thermostat diagnostics 22 HOT GAS SOLENOID WATER INLET SOLENOID EVAP THERMOSTAT 21 7 10 6 C H L 3 1 ...

Page 50: ...NLET VALVE WON T ENERGIZE No Timer 1 Line voltage at water inlet valve Wires 21 22 Yes Replace water inlet valve coil No Refer to evaporator thermostat diagnostics 22 HOT GAS SOLENOID WATER INLET SOLENOID EVAP THERMOSTAT 21 7 10 6 C H L 3 1 ...

Page 51: ... 39 ICE MACHINE PREMATURELY HARVESTS No Timer 1 Line voltage at hot gas valve Yes Replace hot gas valve No Refer to evaporator thermostat diagnostics 22 HOT GAS SOLENOID WATER INLET SOLENOID EVAP THERMOSTAT 21 7 10 6 C H L 3 1 2 ...

Page 52: ...ture below setpoint 2 Evaporator thermostat cap tube inserted correctly Flush with end of bulb well 3 Evaporator thermostat closed wires 4 timer motor 4 Line voltage at hot gas valve and water inlet Solenoid 22 HOT GAS SOLENOID WATER INLET SOLENOID EVAP THERMOSTAT 21 7 10 6 C H L 3 1 2 3 4 ...

Page 53: ...r 80 1479 3 10 10 41 Mechanical Timer Models WATER PUMP WON T RUN Mechanical Timer 1 Toggle switch terminals 2 1 closed wires 64 3 2 Timer micro switch closed relay 2 wires 33 5 3 Water pump winding closed 3 2 1 ...

Page 54: ...rt Number 80 1479 3 10 10 HOT GAS VALVE WON T ENERGIZE Mechanical Timer 1 Toggle switch terminals 2 1 closed wires 64 3 2 Timer micro switch closed relay 1 wires 3 6 3 Hot gas valve coil winding closed 3 2 1 ...

Page 55: ... and water inlet valve energize together in the harvest cycle If the hot gas valve energizes verify 1 and then go right to 4 1 Water supplied to the ice machine 2 Toggle switch terminals 2 1 closed wires 64 3 3 Timer micro switch closed relay 1 wires 3 6 4 Water inlet valve coil winding closed 3 2 4 ...

Page 56: ...mostat correctly set 2 Timer micro switch relays in N O position wires 3 6 16 open wires 33 4 5 closed 3 Evaporator thermostat terminals 2 3 Common open 4 Timer motor winding closed 5 Timer functions mechanically 6 Timer cam changes relay micro switch position relay 1 wires 3 6 16 must close 3 2 1 4 ...

Page 57: ...tube inserted correctly Flush with end of bulb well 3 Evaporator thermostat closed wires 4 timer motor 4 Timer motor winding closed 5 Timer functions mechanically 6 Timer cam changes micro switch position relay 1 wires 3 6 must close 7 Micro switch functions 8 Line voltage at hot gas valve and water inlet Solenoid wires 6 7 wires 21 10 3 8 5 7 4 ...

Page 58: ...R PUMP WON T RUN SCR Timer 1 Toggle switch terminals 2 1 closed wires 64 3 2 Timer relay closed wires 3 5 contacts C NC on timer 3 Water pump winding closed NC C NO 6 2 TIME DELAY RELAY 1 RELAY WATER PUMP TOGGLE SWITCH 3 1 2 6 4 5 8 5 33 3 49 65 64 1 2 3 ...

Page 59: ...T GAS VALVE WON T ENERGIZE SCR Timer 1 Line voltage at hot gas valve Wires 6 7 Yes Replace hot gas valve coil No Refer to SCR timer diagnostics 22 NC C NO 6 2 TIME DELAY RELAY 1 RELAY HOT GAS SOLENOID WATER INLET SOLENOID 21 9 7 10 6 1 ...

Page 60: ...NLET VALVE WON T ENERGIZE SCR Timer 1 Line voltage at water inlet valve Wires 21 22 Yes Replace water inlet valve No Refer to SCR timer diagnostics 22 NC C NO 6 2 TIME DELAY RELAY 1 RELAY HOT GAS SOLENOID WATER INLET SOLENOID 21 9 7 10 6 1 ...

Page 61: ...CR Timer 1 Line voltage at hot gas valve No Replace hot gas valve 2 Line voltage at NO and 2 terminals on SCR timer 3 Line voltage at 6 2 on SCR timer No Replace SCR timer 22 NC C NO 6 2 TIME DELAY RELAY 1 RELAY HOT GAS SOLENOID WATER INLET SOLENOID 21 9 7 10 6 1 2 3 ...

Page 62: ...porator temperature must be below setpoint Line Voltage Momentarily disconnect then reconnect power to 6 3 Wait 11 minutes Ice machine cycles into harvest Refer to evaporator thermostat diagnostics The evaporator thermostat must open the trigger contact 6 to reset the freeze cycle time If power is not broken at 6 the ice machine will remain in the freeze cycle and never initiate a harvest cycle Ic...

Page 63: ...een 1 4 and 5 5 bar Install a water regulator valve or increase the water pressure Incoming water temperature is not between 1 7 C and 32 2 C If too hot check the hot water line check valves in other store equipment Water filtration is plugged if used Install a new water filter Hoses fittings etc are leaking water Repair replace as needed Water inlet valve is stuck open or closed Clean replace as ...

Page 64: ...d in Step 1 to find published 24 hr ice production ____ Times are in minutes Example 1 min 15 sec converts to 1 25 min 15 seconds 60 seconds 25 minutes Weights are in grams 4 Perform an ice production check using the formula below Weighing the ice is the only 100 accurate check Compare the results of Step 3 with Step 2 Ice production is normal when these numbers match closely If they match closely...

Page 65: ...res Freeze Cycle ______ Harvest Cycle ______ Perform an actual discharge pressure check Compare the actual discharge pressure Step 3 with the published discharge pressure Step 2 The discharge pressure is normal when the actual pressure falls within the published pressure range for the ice machine s operating conditions It is normal for the discharge pressure to be higher at the beginning of the fr...

Page 66: ...ection Checklist Restricted Condenser Air Flow High inlet air temperature Condenser discharge air re circulation Dirty condenser fins Defective fan motor Improper Refrigerant Charge Overcharged Non condensable in system Wrong type of refrigerant Other High side refrigerant lines component restricted before mid condenser ...

Page 67: ...er Installation Refer to Installation Visual Inspection Checklist Improper Refrigerant Charge Undercharged Wrong type of refrigerant Other High side refrigerant lines component restricted before mid condenser NOTE Do not limit your diagnosis to only the items listed in the checklists ...

Page 68: ...emperature 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 published suction pressure to the published freeze cycle time NOTE Analyze discharge pressure before analyzing suction pressure High or low discharge pressure may be causing high or low suction pressure ...

Page 69: ...e the proper suction pressure should be approximately 1 94 bar at 1 minute 1 17 bar at 20 minutes etc 3 Perform an actual suction pressure check at the beginning middle and end of the freeze cycle Note the times at which the readings are taken Manifold gauges were connected to the example ice machine and suction pressure readings taken as follows Beginning of Freeze cycle 3 bar at 1 min Middle of ...

Page 70: ...n Checklist Discharge Pressure Discharge pressure is too high and is affecting suction pressure refer to Freeze Cycle Discharge Pressure High Checklist Improper Refrigerant Charge Overcharged Wrong type of refrigerant Non Condensable in system Other Hot gas valve leaking TXV flooding check bulb mounting Defective compressor ...

Page 71: ...Low Checklist Improper Refrigerant Charge Undercharged Wrong type of refrigerant Other Improper water supply over evaporator refer to Water System Checklist Loss of heat transfer from tubing on back side of evaporator Restricted plugged liquid line drier Restricted plugged tubing or capillary tube in suction side of refrigeration system TXV starving Moisture in refrigeration system NOTE Do not lim...

Page 72: ...re Higher ambient air temperatures at the condenser higher discharge line temperatures at the compressor Lower ambient air temperatures at the condenser lower discharge line temperatures at the compressor Regardless of ambient temperature the freeze cycle discharge line temperature will be higher than 71 C on a normally operating ice machine Procedure Connect a temperature probe on the compressor ...

Page 73: ...ATURE BELOW 71 C AT END OF FREEZE CYCLE Ice machines that have a flooding expansion valve will have a maximum discharge line temperature that decreases each cycle Verify the expansion valve sensing bulb is 100 insulated and sealed airtight Condenser air contacting an incorrectly insulated sensing bulb will cause overfeeding of the expansion valve Verify the expansion valve sensing bulb is position...

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Page 75: ...Part Number 80 1479 3 10 10 63 ...

Page 76: ... the toggle switch by disconnecting all wires from the switch 3 Check across the toggle switch terminals using a calibrated ohmmeter Note where the wire numbers are connected to the switch terminals or refer to the wiring diagram to take proper readings Replace the toggle switch if ohm readings do not match all three switch settings Switch Setting Terminals Ohm Reading ON 5 6 Open 5 4 Closed 2 1 C...

Page 77: ...ications Check Procedure Make sure bulb is inserted correctly 35 5 cm in the bulb well Disconnect the wires from the bin thermostat and check the resistance across the terminals NOTE After covering uncovering the bulb holder with ice wait at least three minutes to allow the thermostat to react Open Close Control Setting Bin Thermostat Cut in 4 5 C Cut out 1 0 C Warning Disconnect electrical power ...

Page 78: ... Operation Thermostat contacts C L are closed at temperatures above cut in and contacts C H are closed at temperatures below cut in Setting Control For Proper Operation Correct setting will vary with operating ambient To obtain correct setpoint capture and weigh the ice from 1 freeze cycle refer to ice production check for complete details Refer to Cycle Time 24 hour Ice Production charts for corr...

Page 79: ...stat adjustment to the coldest and warmest setting did the contacts change position 4 Attach a thermocouple and measure the temperature at the bulb At 0 C the thermostat can be adjusted warmer or colder to change contact positions If readings do not match chart replace the thermostat Temperature Contacts C L Contacts C H Above Setpoint Bulb Closed Open Below Setpoint Bulb Open Closed ...

Page 80: ...r thermostat plus 11 5 minutes Changing the length of the freeze cycle changes the length of the harvest cycle and vice versa Example 12 minute freeze 3 minute harvest DURING THE FREEZE CYCLE After the evaporator thermostat closes the timer is supplied with power The cam turns and the ice machine remains in freeze until the arm for the micro switch changes position at the cam lobe DURING THE HARVE...

Page 81: ...t completes timer Motor Circuit If no voltage is present refer to evaporator thermostat diagnostics 2 If timer has voltage and does not move Check motor windings If windings are open or have resistance and timer does not move replace timer 3 If timer cam moves Check micro switch for voltage Check micro switch for continuity ...

Page 82: ...ures below 10 C 1 Disconnect power to the ice machine 2 Remove timer adjustment tool from the inside of the control box cover 3 Adjust harvest time to 5 minutes easier access can be obtained by removing the timer mounting screws 4 One time adjustment the timer does not need to be readjusted for summer winter operation ...

Page 83: ...mostat must open the trigger contact 6 to reset the freeze cycle time If power is not broken at terminal 6 the ice machine will remain in the freeze cycle and never initiate a harvest cycle Operation Total freeze cycle time the time it takes to close the evaporator thermostat plus 10 minutes Total harvest time the setting on the timer SS dial DURING THE FREEZE CYCLE After the evaporator thermostat...

Page 84: ...Part Number 80 1479 3 10 10 71 LOW AMBIENT ADJUSTMENT FOR SCR TIMER Adjust SS single shot time dial to 5 minutes 2 C NC 1 NO 6 1 6 5 4 3 2 5 15 13 11 9 7 ...

Page 85: ...ct manifold gauges 3 Hook voltmeter in parallel across the HPCO leaving wires attached 4 Close the valve to the water condenser inlet 5 Set ON OFF WASH switch to ON 6 No water flowing through the condenser will cause the HPCO control to open because of excessive pressure Watch the pressure gauge and record the cut out pressure Replace the HPCO control if it Will not reset below 10 3 Bar 150 psig D...

Page 86: ...r during the freeze cycle The hot gas valve is de energized closed preventing refrigerant flow from the receiver into the evaporator 8 Allows refrigerant vapor to enter the evaporator in the harvest cycle During the harvest cycle the hot gas valve is energized open allowing refrigerant gas from the discharge line of the compressor to flow into the evaporator The heat is absorbed by the evaporator ...

Page 87: ...ycle VALVE REMAINS OPEN IN THE FREEZE CYCLE Symptoms of a hot gas valve remaining partially open during the freeze cycle can be similar to symptoms of an expansion valve Capillary tube or compressor problem Symptoms are dependent on the amount of leakage in the freeze cycle A small amount of leakage will cause increased freeze times As the amount of leakage increases the length of the freeze cycle...

Page 88: ...are the temperature of the inlet of the hot gas valves to the temperature of the compressor discharge line Important Feeling the hot gas valve outlet or across the hot gas valve itself will not work for this comparison The hot gas valve outlet is on the suction side cool refrigerant It may be cool enough to touch even if the valve is leaking Warning The inlet of the hot gas valve and the compresso...

Page 89: ...ycle The inlet of the hot gas valve is hot and approaches the temperature of a hot compressor discharge line This is an indication something is wrong as the hot gas valve inlet did not cool down during the freeze cycle If the compressor dome is also entirely hot the problem is not a hot gas valve leaking but rather something causing the compressor and the entire ice machine to get hot Both the inl...

Page 90: ...uction service valve 2 Discharge side of the compressor through the discharge service valve Important Manitowoc Ice Inc assumes no responsibility for the use of contaminated refrigerant Damage resulting from the use of contaminated refrigerant is the sole responsibility of the servicing company Important Replace the liquid line drier before evacuating and recharging Use only a Manitowoc O E M liqu...

Page 91: ...rform recovery or evacuation A Recovery Operate the recovery unit as directed by the manufacturer s instructions B Evacuation prior to recharging Pull the system down to 500 microns Then allow the pump to run for an additional half hour Turn off the pump and perform a standing vacuum leak check NOTE Check for leaks using a halide or electronic leak detector after charging the ice machine Follow th...

Page 92: ...ifold gauges must be removed properly to ensure that no refrigerant contamination or loss occurs 8 Make sure all vapor in the charging hoses is drawn into the ice machine before disconnecting a Run the ice machine in freeze cycle b Disconnect the high side service valve at the ice machine c Open the high and low side valves on the manifold gauge set Any refrigerant in the lines will be pulled into...

Page 93: ...diagnostic tool These devices sample refrigerant eliminating the need to take an oil sample Follow the manufacturer s directions If a refrigerant test kit indicates harmful levels of contamination or if a test kit is not available inspect the compressor oil 1 Remove the refrigerant charge from the ice machine 2 Remove the compressor from the system 3 Check the odor and appearance of the oil 4 Insp...

Page 94: ...t shows contamination No burnout deposits in open compressor lines Mild contamination cleanup procedure Mild Compressor Burnout symptoms Oil appears clean but smells acrid Refrigeration test kit or acid oil test shows harmful acid content No burnout deposits in open compressor lines Mild contamination cleanup procedure Severe Compressor Burnout symptoms Oil is discolored acidic and smells acrid Bu...

Page 95: ...e 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 35 bar B Pull vacuum to 500 microns Break the vacuum with dry nitrogen and sweep the system Pressurize to a minimum of 35 bar C Change the vacuum pump oil D Pull vacuum to 500 microns Run the vacuum pump for 1 2 hour on self contained models 1 hour o...

Page 96: ...its from suction and discharge lines at compressor 4 Sweep through the open system with dry nitrogen 5 Install a new compressor and new start components 6 Install suction line filter drier in front of compressor 7 Install a new liquid line drier Important Refrigerant sweeps are not recommended as they release CFC s into the atmosphere ...

Page 97: ...stem with the proper refrigerant to the nameplate charge Operate the ice machine for one hour Then check the pressure drop across the suction line filter drier F If the pressure drop is less than 14 bar the filter drier should be adequate for complete cleanup G If the pressure drop exceeds 14 bar change the suction line filter drier and the liquid line drier Repeat until the pressure drop is accep...

Page 98: ... 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 harvest cycle A Manitowoc filter drier has a very high moisture removal capability and a good acid removal capacity Important The liquid line drier is covered as a warranty part The liquid line drier must be repla...

Page 99: ...Refrigerant Charge grams Refrigerant Type EC018 Air Cooled 160 or 180 R134A EC020 Air Cooled 160 or 180 R134A EC020 Water Cooled 130 or 160 R134A EC030 Air Cooled 170 or 180 R134A EC030 Water Cooled 170 R134A EC040 Air Cooled 230 R134A EC040 Water Cooled 200 R134A EC050 Air Cooled 250 R134A EC050 Water Cooled 210 R134A EC065 Air Cooled 230 R404A EC065 Water Cooled 200 R404A EC080 Air Cooled 250 R4...

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Page 102: ...pection water system checklist ice formation pattern safety limits comparing evaporator inlet outlet temperatures hot gas valve analysis discharge and suction pressure analysis Ice production checks that are within 10 of the chart are considered normal This is due to variances in water and air temperature Actual temperatures will seldom match the chart exactly Zero out manifold gauge set before ob...

Page 103: ...e Harvest Time Times in minutes Water Temperature C 10 15 20 25 30 35 40 10 19 1 21 4 3 5 min 15 19 7 22 1 19 8 22 2 20 21 2 23 8 21 4 23 9 21 5 24 1 21 7 24 3 21 4 23 9 25 22 8 25 5 24 0 26 8 23 3 26 0 23 4 26 2 23 6 26 4 30 24 7 27 6 24 9 27 8 25 1 28 1 25 3 28 3 25 7 28 7 25 9 29 0 26 1 29 2 35 27 7 30 9 27 7 30 9 27 9 31 1 28 1 31 4 28 6 31 9 40 30 7 34 3 31 0 34 6 31 3 34 9 45 34 1 38 0 34 6 ...

Page 104: ... Temperature C 10 15 20 25 30 35 40 10 18 5 15 18 0 17 9 20 16 9 16 8 16 7 16 6 16 8 25 15 9 15 2 15 6 15 5 15 4 30 14 8 14 7 14 6 14 5 14 3 14 2 14 1 35 13 4 13 4 13 3 13 2 13 0 40 12 2 12 1 12 0 45 11 1 11 0 10 9 Based on average ice weight of 0 29 0 32 kg per cycle Individual cube weight 19 grams 1 Number of individual cubes per cycle 16 ...

Page 105: ...uction Pressure Discharge Pressure Suction Pressure All pressures are in bar Suction pressure drops gradually throughout the freeze cycle 10 6 55 4 48 1 10 0 14 3 10 4 14 2 07 3 10 20 9 31 6 89 1 24 0 28 4 48 5 52 3 10 4 14 25 10 69 7 24 1 38 0 34 4 83 6 55 3 79 4 48 32 13 10 9 31 1 72 0 55 6 20 8 27 5 17 5 86 43 17 24 12 07 1 72 0 69 7 58 10 69 6 21 7 58 ...

Page 106: ...er C Freeze Time Harvest Time Times in minutes Water Temperature C 10 15 20 25 30 35 40 10 18 6 21 2 3 5 min 15 20 3 23 1 21 3 24 1 20 22 3 25 3 24 6 27 9 26 0 29 4 27 5 31 1 30 9 34 9 25 26 0 29 4 27 5 31 1 29 1 32 9 32 9 37 2 35 2 39 7 30 29 1 32 9 30 9 34 9 35 2 39 7 37 8 42 6 40 7 45 9 48 1 54 1 52 8 59 3 35 40 7 45 9 44 1 49 7 52 8 59 3 58 4 65 6 65 3 75 3 40 65 3 73 3 73 9 82 9 99 7 111 7 45...

Page 107: ...p Entering Condenser C Water Temperature C 10 15 20 25 30 35 40 10 28 15 26 25 20 24 22 21 20 18 25 21 20 19 17 16 30 19 18 16 15 14 12 11 35 14 13 11 10 9 40 9 8 6 45 7 5 4 Based on average ice weight of 0 43 0 48 kg per cycle Individual cube weight 19 grams 1 Number of individual cubes per cycle 24 ...

Page 108: ...r C Freeze Cycle Harvest Cycle Discharge Pressure Suction Pressure Discharge Pressure Suction Pressure All pressures are in bar Suction pressure drops gradually throughout the freeze cycle 10 7 24 4 83 1 38 0 2 76 3 45 1 72 2 76 20 11 38 6 89 1 72 0 34 3 45 5 51 2 76 4 14 43 20 68 13 79 2 76 0 69 4 14 9 30 4 14 6 89 ...

Page 109: ...me Harvest Time Times in minutes Water Temperature C 10 15 20 25 30 35 40 10 24 5 26 4 3 5 min 15 28 8 31 0 29 8 32 1 20 32 0 34 4 33 2 35 7 34 6 37 1 36 0 38 6 37 5 40 3 25 37 5 40 3 44 9 48 2 39 1 42 0 40 9 43 9 42 8 46 0 30 42 8 46 0 44 9 48 2 47 2 50 7 47 2 50 7 49 8 53 4 52 6 56 4 55 7 59 7 35 55 7 59 7 59 2 63 4 63 1 67 6 63 1 67 6 67 5 72 3 40 78 5 84 0 85 3 91 3 93 4 99 9 45 103 1 110 3 11...

Page 110: ... Air Temp Entering Condenser C Water Temperature C 10 15 20 25 30 35 40 10 38 15 33 32 20 30 29 28 27 26 25 26 22 25 24 23 30 23 22 21 21 20 19 18 35 18 17 16 16 15 40 13 12 11 45 10 9 8 Based on average ice weight of 0 74 0 79 kg per cycle Individual cube weight 32 grams 1 Number of individual cubes per cycle 24 ...

Page 111: ...er C Freeze Cycle Harvest Cycle Discharge Pressure Suction Pressure Discharge Pressure Suction Pressure All pressures are in bar Suction pressure drops gradually throughout the freeze cycle 10 8 96 6 89 1 72 0 2 76 5 51 1 72 4 14 20 11 03 7 93 2 07 0 2 76 6 89 2 76 5 51 43 8 27 12 41 2 07 0 69 3 10 7 58 3 10 7 58 ...

Page 112: ...denser C Freeze Time Harvest Time Times in minutes Water Temperature C 10 15 20 25 30 35 40 10 19 1 21 4 3 5 min 15 19 7 22 1 19 8 22 2 20 21 2 23 8 21 4 23 9 21 5 24 1 21 7 24 3 21 4 23 9 25 22 8 25 5 24 0 26 8 23 3 26 0 23 4 26 2 23 6 26 4 30 24 7 27 6 24 9 27 8 25 1 28 1 25 3 28 3 25 7 28 7 25 9 29 0 26 1 29 2 35 27 7 30 9 27 7 30 9 27 9 31 1 28 1 31 4 28 6 31 9 40 30 7 34 3 31 0 34 6 31 3 34 9...

Page 113: ...perature C 10 15 20 25 30 35 40 10 18 5 15 18 0 17 9 20 16 9 16 8 16 7 16 6 16 8 25 15 9 15 2 15 6 15 5 15 4 30 14 8 14 7 14 6 14 5 14 3 14 2 14 1 35 13 4 13 4 13 3 13 2 13 0 40 12 2 12 1 12 0 45 11 1 11 0 10 9 Based on average ice weight of 0 29 0 32 kg per cycle Individual cube weight 19 grams 1 Number of individual cubes per cycle 16 ...

Page 114: ...essure Suction Pressure Discharge Pressure Suction Pressure All pressures are in bar Suction pressure drops gradually throughout the freeze cycle 10 6 55 4 48 1 10 0 14 3 10 4 14 2 07 3 10 20 9 31 6 89 1 24 0 28 4 48 5 52 3 10 4 14 25 10 69 7 24 1 38 0 34 4 83 6 55 3 79 4 48 32 13 10 9 31 1 72 0 55 6 20 8 27 5 17 5 86 43 17 24 12 07 1 72 0 69 7 58 10 69 6 21 7 58 ...

Page 115: ...e Harvest Time Times in minutes Water Temperature C 10 15 20 25 30 35 40 10 16 5 18 8 3 5 min 15 18 6 21 2 19 4 22 1 20 20 3 23 1 21 3 24 1 23 4 26 6 24 6 27 9 26 0 29 4 25 23 4 26 6 24 6 27 9 26 0 26 9 27 5 31 1 30 9 34 9 30 26 0 29 4 27 5 31 1 30 9 34 9 32 9 37 2 35 2 39 7 37 8 42 6 44 1 49 7 35 35 2 39 7 37 8 42 6 44 1 49 7 48 1 54 1 52 8 59 3 40 52 8 59 3 58 4 65 6 65 3 73 3 45 65 3 73 3 85 0 ...

Page 116: ...r Temp Entering Condenser C Water Temperature C 10 15 20 25 30 35 40 10 31 15 28 27 20 26 25 23 22 21 25 23 22 21 20 18 30 21 20 18 17 16 15 13 35 16 15 13 12 11 40 11 10 9 45 9 7 6 Based on average ice weight of 0 43 0 48 kg per cycle Individual cube weight 19 grams 1 Number of individual cubes per cycle 24 ...

Page 117: ... Freeze Cycle Harvest Cycle Discharge Pressure Suction Pressure Discharge Pressure Suction Pressure All pressures are in bar Suction pressure drops gradually throughout the freeze cycle 10 9 65 5 17 1 38 0 2 16 4 48 1 72 3 10 20 15 86 7 58 2 07 0 4 14 6 55 2 76 4 83 43 25 51 14 48 2 76 0 69 4 14 10 0 4 83 8 27 ...

Page 118: ...ze Time Harvest Time Times in minutes Water Temperature C 10 15 20 25 30 35 40 10 26 1 28 1 3 5 min 15 28 8 31 0 29 8 32 1 20 33 2 35 7 34 6 37 1 36 0 38 6 36 0 38 6 37 5 40 3 25 39 1 42 0 40 9 43 9 40 9 43 9 42 8 46 0 44 9 48 2 30 47 2 50 7 47 2 50 7 49 8 53 4 52 6 56 4 55 7 59 7 55 7 59 7 59 2 63 4 35 63 1 67 6 67 5 72 3 67 5 72 3 72 6 77 8 78 5 84 0 40 93 4 99 9 103 1 110 3 114 9 122 9 45 148 7...

Page 119: ...ng Condenser C Water Temperature C 10 15 20 25 30 35 40 10 36 15 33 32 20 29 28 27 27 26 25 25 24 24 23 22 30 21 21 20 19 18 18 17 35 16 15 15 14 13 40 11 10 9 45 7 6 6 Based on average ice weight of 0 74 0 79 kg per cycle Individual cube weight 32 grams 1 Number of individual cubes per cycle 24 ...

Page 120: ...reeze Cycle Harvest Cycle Discharge Pressure Suction Pressure Discharge Pressure Suction Pressure All pressures are in bar Suction pressure drops gradually throughout the freeze cycle 10 9 65 5 17 1 38 0 2 16 4 48 1 72 3 10 20 15 86 7 58 2 07 0 4 14 6 55 2 76 4 83 43 25 51 14 48 2 76 0 69 4 14 10 0 4 83 8 27 ...

Page 121: ...C Freeze Time Harvest Time Times in minutes Water Temperature C 10 15 20 25 30 35 40 10 18 6 21 2 3 5 min 15 20 3 23 1 21 3 24 1 20 22 3 25 3 24 6 27 9 26 0 29 4 27 5 31 1 30 9 34 9 25 26 0 29 4 27 5 31 1 29 1 32 9 32 9 37 2 35 2 39 7 30 29 1 32 9 30 9 34 9 35 2 39 7 37 8 42 6 40 7 45 9 48 1 54 1 52 8 59 3 35 40 7 45 9 44 1 49 7 52 8 59 3 58 4 65 6 65 3 75 3 40 65 3 73 3 73 9 82 9 99 7 111 7 45 85...

Page 122: ... next page Air Temp Entering Condenser C Water Temperature C 10 15 20 25 30 35 40 10 28 15 26 25 20 24 22 21 20 18 25 21 20 19 17 16 30 19 18 16 15 14 12 11 35 14 13 11 10 9 40 9 8 6 45 7 5 4 Based on average ice weight of 0 43 0 48 kg per cycle Individual cube weight 19 grams 1 Number of individual cubes per cycle 24 ...

Page 123: ...ndenser C Freeze Cycle Harvest Cycle Discharge Pressure Suction Pressure Discharge Pressure Suction Pressure All pressures are in bar Suction pressure drops gradually throughout the freeze cycle 10 7 24 4 83 1 38 0 2 76 3 45 1 72 2 76 20 11 38 6 89 1 72 0 34 3 45 5 51 2 76 4 14 43 20 68 13 79 2 76 0 69 4 14 9 30 4 14 6 89 ...

Page 124: ...ondenser C Freeze Time Harvest Time Times in minutes Water Temperature C 10 15 20 25 30 35 40 10 24 5 26 4 3 5 min 15 28 8 31 0 29 8 32 1 20 32 0 34 4 33 2 35 7 34 6 37 1 36 0 38 6 37 5 40 3 25 37 5 40 3 44 9 48 2 39 1 42 0 40 9 43 9 42 8 46 0 30 42 8 46 0 44 9 48 2 47 2 50 7 47 2 50 7 49 8 53 4 52 6 56 4 55 7 59 7 35 55 7 59 7 59 2 63 4 63 1 67 6 63 1 67 6 67 5 72 3 40 78 5 84 0 85 3 91 3 93 4 99...

Page 125: ...r Temp Entering Condenser C Water Temperature C 10 15 20 25 30 35 40 10 38 15 33 32 20 30 29 28 27 26 25 26 22 25 24 23 30 23 22 21 21 20 19 18 35 18 17 16 16 15 40 13 12 11 45 10 9 8 Based on average ice weight of 0 74 0 79 kg per cycle Individual cube weight 32 grams 1 Number of individual cubes per cycle 24 ...

Page 126: ... Condenser C Freeze Cycle Harvest Cycle Discharge Pressure Suction Pressure Discharge Pressure Suction Pressure All pressures are in bar Suction pressure drops gradually throughout the freeze cycle 10 8 96 6 89 1 72 0 2 76 5 51 1 72 4 14 20 11 03 7 93 2 07 0 2 76 6 89 2 76 5 51 43 8 27 12 41 2 07 0 69 3 10 7 58 3 10 7 58 ...

Page 127: ...e Harvest Time Times in minutes Water Temperature C 10 15 20 25 30 35 40 10 21 8 24 6 3 5 min 15 23 1 26 0 24 5 27 6 20 25 3 28 5 27 0 30 4 27 9 31 4 29 9 33 7 34 9 39 2 25 27 9 31 4 29 9 33 7 31 1 34 9 33 5 37 6 36 4 40 8 30 31 1 34 9 33 5 37 6 36 4 40 8 38 0 42 6 41 6 46 6 43 6 48 9 48 3 54 1 35 41 6 46 6 43 6 48 9 48 3 54 1 54 1 60 5 57 5 64 3 40 57 5 64 3 65 6 73 3 70 6 78 8 45 70 6 78 8 82 9 ...

Page 128: ...Temp Entering Condenser C Water Temperature C 10 15 20 25 30 35 40 10 41 15 39 37 20 36 34 33 31 27 25 33 31 30 28 26 30 30 28 26 25 23 22 20 35 23 22 20 18 17 40 17 15 14 45 14 12 11 Based on average ice weight of 0 72 0 80 kg per cycle Individual cube weight 19 grams 1 Number of individual cubes per cycle 40 ...

Page 129: ...ure Suction Pressure Discharge Pressure Suction Pressure All pressures are in bar Suction pressure drops gradually throughout the freeze cycle 10 7 58 4 48 1 72 14 2 41 4 14 1 38 2 07 20 11 03 5 86 1 94 28 3 45 5 87 1 72 3 45 25 13 10 7 24 1 94 34 3 79 6 55 2 07 4 14 32 15 86 9 31 1 94 41 4 82 8 27 2 76 4 82 43 21 37 11 72 2 34 48 5 17 11 72 3 45 7 93 ...

Page 130: ...Freeze Time Harvest Time Times in minutes Water Temperature C 10 15 20 25 30 35 40 10 28 4 30 4 3 5 min 15 30 2 32 4 32 2 34 5 20 32 9 35 3 34 5 36 9 37 1 39 7 39 0 41 8 41 1 44 0 25 35 3 37 8 37 1 39 7 40 1 42 9 43 5 46 5 46 1 49 3 30 39 0 41 8 41 1 44 0 44 8 47 9 49 0 52 4 52 3 55 9 58 1 62 0 62 6 66 9 35 50 6 54 1 54 1 57 8 60 3 64 4 65 2 69 6 74 1 79 1 40 67 9 72 5 77 7 82 9 85 8 91 5 45 81 5 ...

Page 131: ... Condenser C Water Temperature C 10 15 20 25 30 35 40 10 56 15 53 50 20 49 47 44 42 40 25 46 44 41 38 36 30 42 40 37 34 32 29 27 35 33 31 28 26 23 40 25 22 20 45 21 19 16 Based on average ice weight of 1 24 1 32 kg per cycle Individual cube weight 32 grams 1 Number of individual cubes per cycle 40 ...

Page 132: ...re Suction Pressure Discharge Pressure Suction Pressure All pressures are in bar Suction pressure drops gradually throughout the freeze cycle 10 7 58 4 48 1 72 14 2 41 4 14 1 38 2 07 20 11 03 5 86 1 94 28 3 45 5 87 1 72 3 45 25 13 10 7 24 1 94 34 3 79 6 55 2 07 4 14 32 15 86 9 31 1 94 41 4 82 8 27 2 76 4 82 43 21 37 11 72 2 34 48 5 17 11 72 3 45 7 93 ...

Page 133: ...ime Harvest Time Times in minutes Water Temperature C 10 15 20 25 30 35 40 10 21 8 24 6 3 5 min 15 23 1 26 0 24 5 27 6 20 24 5 27 6 26 1 29 4 27 9 31 4 29 9 33 7 33 5 37 6 25 25 3 28 5 27 9 31 4 29 9 33 7 32 3 36 2 34 9 39 2 30 27 0 30 4 28 9 32 5 31 1 34 9 33 5 37 6 36 4 40 8 41 6 46 6 45 9 51 4 35 33 5 37 6 36 4 40 8 39 7 44 5 43 6 48 9 48 3 54 1 40 41 6 46 6 48 3 54 1 54 1 60 5 45 45 9 51 4 51 ...

Page 134: ... Temp Around Ice Machine C Water Temperature C 10 15 20 25 30 35 40 10 41 15 39 37 20 37 35 33 31 28 25 36 33 31 29 27 30 34 32 30 28 26 23 21 35 28 26 24 22 20 40 23 20 18 45 21 19 17 Based on average ice weight of 0 72 0 80 kg per cycle Individual cube weight 19 grams 1 Number of individual cubes per cycle 40 ...

Page 135: ...ure Entering Condenser C Freeze Cycle Harvest Cycle Discharge Pressure Suction Pressure Discharge Pressure Suction Pressure Set water regulating valve to 9 bar 5 minutes into freeze cycle All pressures are in bar Suction pressure drops gradually throughout the freeze cycle 10 10 34 8 62 1 79 28 3 10 5 87 2 07 3 45 20 11 03 8 62 1 79 34 3 10 7 24 2 07 4 82 25 11 03 8 62 1 79 41 3 10 7 24 2 07 4 82 ...

Page 136: ...C Freeze Time Harvest Time Times in minutes Water Temperature C 10 15 20 25 30 35 40 10 30 8 33 1 3 5 min 15 32 2 34 5 34 5 36 9 20 33 7 36 1 35 3 37 8 38 0 40 7 41 1 44 0 44 8 47 9 25 34 5 36 9 39 0 41 8 40 1 42 9 43 5 46 5 47 5 50 8 30 36 2 38 7 39 0 41 8 42 3 45 2 46 1 49 3 50 6 54 1 56 0 59 9 62 6 66 9 35 44 8 47 9 49 0 52 4 52 3 55 9 58 1 62 0 65 2 69 6 40 56 0 59 9 62 6 66 9 70 9 75 7 45 60 ...

Page 137: ...Ice Machine C Water Temperature C 10 15 20 25 30 35 40 10 52 15 50 47 20 48 46 43 40 37 25 47 42 41 38 35 30 45 42 39 36 33 30 27 35 37 34 32 29 26 40 30 27 24 45 28 25 22 Based on average ice weight of 1 24 1 32 kg per cycle Individual cube weight 32 grams 1 Number of individual cubes per cycle 40 ...

Page 138: ...e Entering Condenser C Freeze Cycle Harvest Cycle Discharge Pressure Suction Pressure Discharge Pressure Suction Pressure Set water regulating valve to 9 bar 5 minutes into freeze cycle All pressures are in bar Suction pres sure drops gradually throughout the freeze cycle 10 10 34 8 62 1 79 28 3 10 5 87 2 07 3 45 20 11 03 8 62 1 79 34 3 10 7 24 2 07 4 82 25 11 03 8 62 1 79 41 3 10 7 24 2 07 4 82 3...

Page 139: ...me Harvest Time Times in minutes Water Temperature C 10 15 20 25 30 35 40 10 18 1 20 5 3 5 min 15 19 5 22 1 20 1 22 7 20 20 6 23 3 21 8 24 6 23 1 26 0 23 8 26 8 25 3 28 5 25 22 4 25 3 23 8 26 8 24 5 27 6 26 1 29 4 27 0 30 4 30 24 5 27 6 25 3 28 5 27 0 30 4 27 9 31 4 29 9 33 7 32 3 36 2 33 5 37 6 35 28 9 32 5 31 1 34 9 33 5 37 6 34 9 39 2 38 0 42 6 40 36 4 40 8 39 7 44 5 41 6 46 6 45 41 6 46 6 43 6...

Page 140: ...Temp Entering Condenser C Water Temperature C 10 15 20 25 30 35 40 10 48 15 45 44 20 43 41 39 38 36 25 40 38 37 35 34 30 37 36 34 33 31 29 28 35 32 30 28 27 25 40 26 24 23 45 23 22 20 Based on average ice weight of 0 72 0 80 kg per cycle Individual cube weight 19 grams 1 Number of individual cubes per cycle 40 ...

Page 141: ...ure Suction Pressure Discharge Pressure Suction Pressure All pressures are in bar Suction pressure drops gradually throughout the freeze cycle 10 9 31 4 48 2 76 14 2 76 4 83 1 38 2 76 20 14 48 6 21 3 31 14 4 14 7 58 1 72 4 48 25 14 48 7 58 3 45 14 4 82 8 27 2 07 4 82 32 17 23 8 96 3 79 14 6 21 9 65 2 76 5 87 43 24 13 12 07 4 27 21 7 93 12 76 3 45 7 93 ...

Page 142: ... Freeze Time Harvest Time Times in minutes Water Temperature C 10 15 20 25 30 35 40 10 24 8 26 7 3 5 min 15 26 8 28 7 27 8 29 8 20 29 0 31 1 30 2 32 4 31 5 33 8 32 2 34 5 33 7 36 1 25 31 5 33 8 32 9 35 3 33 7 36 1 35 3 37 8 37 1 39 7 30 34 5 36 9 36 2 38 7 37 1 39 7 39 0 41 8 41 1 44 0 43 5 46 5 46 1 49 3 35 41 1 44 0 43 5 46 5 46 1 49 3 49 0 52 4 52 3 55 9 40 52 3 55 9 56 0 59 9 60 3 64 4 45 60 3...

Page 143: ... Condenser C Water Temperature C 10 15 20 25 30 35 40 10 63 15 59 57 20 55 53 51 50 48 25 51 49 48 46 44 30 47 45 44 42 40 38 36 35 40 38 36 34 32 40 32 30 28 45 28 26 24 Based on average ice weight of 1 24 1 32 kg per cycle Individual cube weight 32 grams 1 Number of individual cubes per cycle 40 ...

Page 144: ...re Suction Pressure Discharge Pressure Suction Pressure All pressures are in bar Suction pressure drops gradually throughout the freeze cycle 10 9 31 4 48 2 76 14 2 76 4 83 1 38 2 76 20 14 48 6 21 3 31 14 4 14 7 58 1 72 4 48 25 14 48 7 58 3 45 14 4 82 8 27 2 07 4 82 32 17 23 8 96 3 79 14 6 21 9 65 2 76 5 87 43 24 13 12 07 4 27 21 7 93 12 76 3 45 7 93 ...

Page 145: ...ime Harvest Time Times in minutes Water Temperature C 10 15 20 25 30 35 40 10 19 5 22 1 3 5 min 15 20 1 22 7 20 6 23 3 20 20 6 23 3 21 2 23 9 21 8 24 6 22 4 25 3 23 8 26 8 25 21 2 23 9 22 4 25 3 22 4 25 3 23 1 26 0 23 8 26 8 30 21 8 24 6 22 4 25 3 23 1 26 0 23 8 26 8 24 5 27 6 25 3 28 5 26 1 29 4 35 23 8 26 8 24 5 27 6 25 3 28 5 26 1 29 4 27 0 30 4 40 26 1 29 4 27 0 30 4 27 9 31 4 45 27 9 31 4 28 ...

Page 146: ... Temp Around Ice Machine C Water Temperature C 10 15 20 25 30 35 40 10 45 15 44 43 20 43 42 41 40 38 25 42 40 40 39 38 30 41 40 39 38 37 36 35 35 38 37 36 35 34 40 35 34 33 45 33 32 31 Based on average ice weight of 0 72 0 80 kg per cycle Individual cube weight 19 grams 1 Number of individual cubes per cycle 40 ...

Page 147: ...ure Entering Condenser C Freeze Cycle Harvest Cycle Discharge Pressure Suction Pressure Discharge Pressure Suction Pressure Set water regulating valve to 9 bar 5 minutes into freeze cycle All pressures are in bar Suction pres sure drops gradually throughout the freeze cycle 10 9 65 7 93 2 34 07 4 83 7 58 2 41 3 79 20 11 38 7 93 2 48 07 5 17 9 65 2 41 5 86 25 11 38 7 93 2 62 07 5 17 9 65 2 41 5 86 ...

Page 148: ...C Freeze Time Harvest Time Times in minutes Water Temperature C 10 15 20 25 30 35 40 10 26 8 28 7 3 5 min 15 27 3 29 3 28 4 30 4 20 27 8 29 8 29 0 31 1 30 2 32 4 31 5 33 8 32 2 34 5 25 29 0 31 1 30 2 32 4 30 8 33 1 32 2 34 5 32 9 35 3 30 29 6 31 7 30 8 33 1 31 5 33 8 32 9 35 3 34 5 36 9 35 3 37 8 37 1 39 7 35 32 9 35 3 33 7 36 1 35 3 37 8 37 1 39 7 38 0 40 7 40 36 2 38 7 38 0 40 7 39 0 41 8 45 37 ...

Page 149: ...Ice Machine C Water Temperature C 10 15 20 25 30 35 40 10 59 15 58 56 20 57 55 53 51 50 25 55 53 52 50 49 30 54 52 51 49 47 46 44 35 49 48 46 44 43 40 45 43 42 45 44 42 40 Based on average ice weight of 1 24 1 32 kg per cycle Individual cube weight 32 grams 1 Number of individual cubes per cycle 40 ...

Page 150: ...re Entering Condenser C Freeze Cycle Harvest Cycle Discharge Pressure Suction Pressure Discharge Pressure Suction Pressure Set water regulating valve to 9 bar 5 minutes into freeze cycle All pressures are in bar Suction pres sure drops gradually throughout the freeze cycle 10 9 65 7 93 2 34 07 4 83 7 58 2 41 3 79 20 11 38 7 93 2 48 07 5 17 9 65 2 41 5 86 25 11 38 7 93 2 62 07 5 17 9 65 2 41 5 86 3...

Page 151: ...e Harvest Time Times in minutes Water Temperature C 10 15 20 25 30 35 40 10 21 2 23 8 3 0 min 15 23 4 26 4 25 0 28 1 20 25 6 28 8 27 4 30 8 29 6 33 2 32 0 35 8 34 8 38 9 25 27 4 30 8 32 0 35 8 32 0 35 8 34 8 38 9 38 1 42 6 30 30 3 34 0 32 9 36 8 35 8 40 1 39 3 43 9 43 4 48 5 48 4 54 1 54 7 61 0 35 39 3 43 9 43 4 48 5 48 4 54 1 54 7 61 0 65 8 73 3 40 57 1 63 7 65 8 73 3 77 3 86 1 45 69 2 77 1 82 1 ...

Page 152: ...Temp Entering Condenser C Water Temperature C 10 15 20 25 30 35 40 10 59 15 54 51 20 50 47 44 41 38 25 47 41 41 38 35 30 43 40 37 34 31 28 25 35 34 31 28 25 21 40 24 21 18 45 20 17 14 Based on average ice weight of 1 01 1 12 kg per cycle Individual cube weight 19 grams 1 Number of individual cubes per cycle 56 ...

Page 153: ...on Pressure Discharge Pressure Suction Pressure All pressures are in bar Suction pressure drops gradually throughout the freeze cycle 10 12 06 9 65 4 13 1 80 6 21 8 27 4 83 5 87 20 16 20 12 41 4 83 1 93 7 58 10 69 5 52 8 62 25 17 58 14 48 4 83 2 07 7 92 11 72 6 89 9 31 32 20 68 17 24 5 17 2 21 8 27 13 79 7 93 10 34 43 26 20 22 06 5 52 2 48 8 96 14 82 8 96 12 07 ...

Page 154: ...reeze Time Harvest Time Times in minutes Water Temperature C 10 15 20 25 30 35 40 10 28 1 30 0 3 0 min 15 32 3 34 4 34 1 36 4 20 35 5 37 9 37 0 39 4 39 4 42 0 41 2 43 9 45 3 48 2 25 39 4 42 0 46 4 49 4 43 1 46 0 46 4 49 4 48 8 52 0 30 43 1 46 0 46 4 49 4 48 8 52 0 51 5 54 8 54 5 58 0 59 6 63 4 63 6 67 6 35 54 5 58 0 59 6 63 4 63 6 67 6 68 0 72 3 76 0 80 8 40 76 0 80 8 82 3 87 5 89 8 95 4 45 89 8 9...

Page 155: ... Condenser C Water Temperature C 10 15 20 25 30 35 40 10 68 15 60 57 20 55 53 50 48 44 25 50 43 46 43 41 30 46 43 41 39 37 34 32 35 37 34 32 30 27 40 27 25 23 45 23 20 18 Based on average ice weight of 1 49 1 58 kg per cycle Individual cube weight 32 grams 1 Number of individual cubes per cycle 48 ...

Page 156: ... Pressure Discharge Pressure Suction Pressure All pressures are in bar Suction pressure drops gradually throughout the freeze cycle 10 12 07 9 65 4 14 1 72 6 21 7 58 4 83 6 21 20 15 86 12 41 4 14 1 93 8 27 11 03 5 52 7 93 25 17 58 15 17 4 48 2 07 8 27 11 72 7 58 9 31 32 20 68 17 24 4 83 2 21 8 27 13 79 8 62 10 69 43 25 51 22 06 5 52 2 41 9 31 14 82 9 65 12 07 ...

Page 157: ...ime Harvest Time Times in minutes Water Temperature C 10 15 20 25 30 35 40 10 23 9 26 9 3 0 min 15 23 9 26 9 26 8 30 1 20 24 5 27 5 26 8 30 1 30 3 34 0 24 8 38 9 39 3 43 9 25 25 0 28 1 27 4 30 8 31 1 34 9 35 8 40 1 40 6 45 4 30 25 6 28 8 28 1 31 6 32 0 35 8 36 9 41 3 42 0 46 9 50 4 56 2 62 6 69 8 35 32 9 42 6 38 1 42 6 43 4 48 5 52 4 58 5 65 8 73 3 40 45 0 50 3 54 7 61 0 69 2 77 1 45 46 7 52 1 57 ...

Page 158: ... Temp Around Ice Machine C Water Temperature C 10 15 20 25 30 35 40 10 53 15 53 48 20 52 48 43 38 34 25 51 47 42 37 33 30 50 46 41 36 32 27 22 35 40 35 31 26 21 40 30 25 20 45 29 24 19 Based on average ice weight of 1 01 1 12 kg per cycle Individual cube weight 19 grams 1 Number of individual cubes per cycle 56 ...

Page 159: ...st Cycle Discharge Pressure Suction Pressure Discharge Pressure Suction Pressure Set water regulating valve to 15 9 bar 5 minutes into freeze cycle All pressures are in bar Suction pressure drops gradually throughout the freeze cycle 10 15 86 15 51 4 55 1 93 6 89 10 00 5 52 6 89 20 15 86 15 51 4 83 1 93 7 58 10 68 6 21 7 93 25 15 86 15 51 4 83 1 93 7 58 10 68 6 21 7 93 32 16 20 15 86 4 83 2 00 7 9...

Page 160: ...C Freeze Time Harvest Time Times in minutes Water Temperature C 10 15 20 25 30 35 40 10 32 9 35 1 3 0 min 15 33 5 35 7 34 8 37 1 20 34 1 36 4 35 5 37 9 37 0 39 4 38 6 41 1 39 4 42 0 25 35 5 37 9 37 0 39 4 37 8 40 3 39 4 42 0 40 3 42 9 30 36 2 38 6 37 8 40 3 38 6 41 1 40 3 42 9 42 2 44 9 43 1 46 0 45 3 48 2 35 40 3 42 9 41 2 43 9 43 1 46 0 45 3 48 2 46 4 49 4 40 44 2 47 1 46 4 49 4 47 6 50 7 45 45 ...

Page 161: ...Ice Machine C Water Temperature C 10 15 20 25 30 35 40 10 59 15 58 56 20 57 55 53 51 50 25 55 53 52 50 49 30 54 52 51 49 47 46 44 35 49 48 46 44 43 40 45 43 42 45 44 42 40 Based on average ice weight of 1 49 1 58 kg per cycle Individual cube weight 32 grams 1 Number of individual cubes per cycle 48 ...

Page 162: ...g Condenser C Freeze Cycle Harvest Cycle Discharge Pressure Suction Pressure Discharge Pressure Suction Pressure Set water regulating valve to 15 9 bar 5 minutes into freeze cycle All pressures are in bar Suction pressure drops gradually throughout the freeze cycle 10 15 86 15 51 4 14 1 52 6 89 10 00 5 52 6 89 20 15 86 15 51 4 83 1 52 7 58 10 68 6 21 7 93 25 16 20 15 51 4 83 1 52 7 58 10 68 6 21 7...

Page 163: ...me Harvest Time Times in minutes Water Temperature C 10 15 20 25 30 35 40 10 15 1 17 2 3 0 min 15 16 7 18 9 18 0 20 3 20 18 1 20 5 19 5 22 0 21 1 23 8 22 9 25 8 25 5 28 6 25 19 7 22 2 22 4 25 2 23 1 26 0 25 3 28 4 27 8 31 3 30 21 5 24 2 23 4 26 3 25 6 28 8 28 2 31 6 31 2 35 0 35 0 39 2 39 7 44 4 35 28 5 31 9 31 6 35 5 35 5 39 7 40 3 45 1 46 3 51 7 40 41 0 45 8 47 2 52 7 55 6 62 1 45 48 1 53 7 56 8...

Page 164: ... Temperature C 10 15 20 25 30 35 40 10 78 1 15 71 9 67 8 20 67 3 63 2 59 1 55 1 50 2 25 62 7 56 2 54 6 50 5 46 4 30 58 2 54 1 50 0 45 9 41 9 37 8 33 7 35 45 5 41 4 37 3 33 2 29 2 40 32 7 28 7 24 6 45 28 2 24 1 20 0 Based on average ice weight of 1 01 1 12 kg per cycle Individual cube weight 19 grams 1 Number of individual cubes per cycle 56 ...

Page 165: ... Pressure Discharge Pressure Suction Pressure All pressures are in bar Suction pressure drops gradually throughout the freeze cycle 10 13 79 9 65 3 45 1 52 6 89 8 27 4 48 5 17 20 17 24 12 41 4 14 1 93 9 31 11 03 6 21 7 24 25 17 24 13 79 4 48 2 07 10 68 12 41 6 89 7 93 32 21 37 17 24 4 69 2 27 12 07 15 17 8 27 10 00 43 26 20 21 37 5 17 2 48 16 55 17 24 9 65 11 72 ...

Page 166: ... Freeze Time Harvest Time Times in minutes Water Temperature C 10 15 20 25 30 35 40 10 19 5 20 9 3 0 min 15 21 7 23 2 22 5 24 1 20 23 9 25 5 24 8 26 6 25 9 27 7 27 0 28 9 28 6 30 5 25 26 4 28 2 28 7 30 6 28 9 30 8 30 2 32 3 31 7 33 9 30 29 5 31 4 30 9 33 0 32 5 34 7 34 2 36 5 36 1 38 5 38 2 40 7 40 5 43 1 35 37 0 39 4 39 2 41 8 41 7 44 4 44 4 47 3 47 5 50 5 40 49 1 52 3 52 8 56 2 57 1 60 8 45 59 2...

Page 167: ...C 10 15 20 25 30 35 40 10 93 3 15 85 1 82 4 20 78 4 75 7 73 0 70 3 66 9 25 71 8 66 7 66 3 63 6 60 9 30 65 1 62 4 59 6 56 9 54 2 51 5 48 8 35 53 0 50 2 47 5 44 8 42 1 40 40 8 38 1 35 4 45 34 2 31 4 28 7 Based on average ice weight of 1 49 1 58 kg per cycle Individual cube weight 32 grams 1 Number of individual cubes per cycle 48 ...

Page 168: ...Pressure Discharge Pressure Suction Pressure All pressures are in bar Suction pressure drops gradually throughout the freeze cycle 10 13 79 9 65 3 45 1 59 6 89 8 27 4 48 5 17 20 13 79 17 24 4 48 1 72 9 65 11 38 5 86 6 89 25 18 62 14 48 4 48 1 79 11 03 12 41 6 89 8 27 32 21 37 17 24 4 69 2 07 12 41 15 17 7 58 10 00 43 26 20 22 75 5 17 2 48 13 79 17 24 9 30 12 07 ...

Page 169: ...ime Harvest Time Times in minutes Water Temperature C 10 15 20 25 30 35 40 10 16 2 18 3 3 0 min 15 16 4 18 6 18 2 20 6 20 16 7 18 9 18 2 20 6 20 0 22 5 22 0 24 8 25 0 28 1 25 17 0 19 2 18 9 21 3 20 3 22 9 22 5 25 3 25 0 28 1 30 17 0 19 2 18 5 20 9 20 3 22 9 22 5 25 3 25 0 28 1 28 1 31 6 32 0 35 8 35 20 7 23 4 22 9 25 8 25 6 28 8 28 8 32 3 32 9 36 8 40 25 6 28 8 29 6 33 2 33 8 37 9 45 26 2 29 4 29 ...

Page 170: ... Temp Around Ice Machine C Water Temperature C 10 15 20 25 30 35 40 10 74 15 73 67 20 72 67 62 57 51 25 71 65 61 56 51 30 71 66 61 56 51 46 41 35 60 55 50 45 40 40 50 44 39 45 49 44 39 Based on average ice weight of 1 01 1 12 kg per cycle Individual cube weight 19 grams 1 Number of individual cubes per cycle 56 ...

Page 171: ...ing Condenser C Freeze Cycle Harvest Cycle Discharge Pressure Suction Pressure Discharge Pressure Suction Pressure Set water regulating valve to 9 bar 5 minutes into freeze cycle All pressures are in bar Suction pres sure drops gradually throughout the freeze cycle 10 15 86 15 51 4 14 2 00 8 27 10 68 5 52 6 89 20 15 86 15 51 4 14 2 00 8 96 12 41 6 21 8 27 25 15 86 15 51 4 14 2 00 8 96 12 41 6 21 8...

Page 172: ...C Freeze Time Harvest Time Times in minutes Water Temperature C 10 15 20 25 30 35 40 10 14 5 16 4 3 0 min 15 15 1 17 2 15 9 18 0 20 15 4 17 4 16 4 18 6 17 3 19 5 18 5 20 9 20 3 22 9 25 15 6 17 7 17 6 19 9 17 9 20 2 18 9 21 3 20 3 22 9 30 15 9 18 0 17 0 19 2 18 2 20 6 19 6 22 1 20 7 23 4 22 5 25 3 24 5 27 5 35 18 5 20 9 20 0 22 5 21 6 24 3 22 9 25 8 25 0 28 1 40 22 0 24 8 23 9 26 9 25 6 28 8 45 24 ...

Page 173: ...Ice Machine C Water Temperature C 10 15 20 25 30 35 40 10 81 15 78 75 20 77 73 70 66 61 25 76 69 68 65 61 30 75 71 67 63 60 56 52 35 66 62 58 55 51 40 57 53 50 45 56 52 48 Based on average ice weight of 1 49 1 58 kg per cycle Individual cube weight 32 grams 1 Number of individual cubes per cycle 48 ...

Page 174: ...g Condenser C Freeze Cycle Harvest Cycle Discharge Pressure Suction Pressure Discharge Pressure Suction Pressure Set water regulating valve to 15 9 bar 5 minutes into freeze cycle All pressures are in bar Suction pressure drops gradually throughout the freeze cycle 10 15 86 15 51 3 79 1 79 8 27 9 65 5 52 6 21 20 15 86 15 51 4 48 1 79 8 96 11 38 6 21 8 27 25 15 86 15 51 4 48 1 79 8 96 11 38 6 21 8 ...

Page 175: ... 162 This Page Intentionally Left Blank ...

Page 176: ...HOT GAS VALVE HOT GAS VALVE WATER INLET WATER INLET SOLENOID SOLENOID WATER WATER PUMP PUMP COMPRESSOR COMPRESSOR EVAP THERMOSTAT EVAP THERMOSTAT FAN MOTOR FAN MOTOR AIR COOLED ONLY AIR COOLED ONLY TOGGLE SWITCH TOGGLE SWITCH START START RELAY RELAY BIN BIN THERMOSTAT THERMOSTAT H P CUTOUT H P CUTOUT WATER COOLED ONLY WATER COOLED ONLY MECHANICAL TIMER MECHANICAL TIMER ...

Page 177: ...id Solenoid Water Inlet Water Inlet Solenoid Solenoid Water Water Pump Pump Compressor Compressor Evap Thermostat Evap Thermostat Fan Motor Fan Motor Air Cooled Only Air Cooled Only Wire Number Designation Wire Number Designation Number Is Marked At Each End Of Wire Number Is Marked At Each End Of Wire L2 N L2 N Female Male Connector Female Male Connector L1 L1 Toggle Switch Toggle Switch Start St...

Page 178: ... C 3 1 2 6 4 5 2 8 5 7 10 6 C H L 3 15 49 65 64 12 13 11 10 82 15 HOT GAS SOLENOID WATER INLET SOLENOID WATER PUMP COMPRESSOR EVAP THERMOSTAT FAN MOTOR AIR COOLED ONLY TOGGLE SWITCH START RELAY START CAPACITOR BIN THERMOSTAT H P CUTOUT WATER COOLED ONLY GROUND ...

Page 179: ... EC40 TUBING SCHEMATIC 1 Compressor 2 Hot Gas Valve 3 Condenser Air or Water Cooled 4 Receiver Water Cooled Only 5 Liquid Line Drier 6 Suction Accumulator with Heat Exchanger 7 Heat Exchanger 8 Capillary Tube 9 Evaporator 7 8 6 5 1 4 3 9 2 ...

Page 180: ...C65 EC80 TUBING SCHEMATIC 1 Compressor 2 Hot Gas Valve 3 Condenser Air or Water Cooled 4 Receiver Water Cooled Only 5 Liquid Line Drier 6 Heat Exchanger 7 Thermostatic Expansion Valve 8 Evaporator 7 8 6 5 1 4 3 2 ...

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Page 184: ...MANITOWOC ICE 2110 South 26th Street P O Box 1720 Manitowoc WI 54221 1720 USA Phone 920 682 0161 Fax 920 683 7585 Website www manitowocice com 2010 Manitowoc Ice ...

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Manitowoc EC18, Technician'S Handbook

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