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VOGT ICE TUBE-ICE P-24A Service Manual

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P-24A
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P-34A
TUBE-ICE
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12/20/12

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Summary of Contents for VOGT ICE TUBE-ICE P-24A

  • Page 1 P-24A & P-34A TUBE-ICE ® MACHINE Service Manual 12/20/12...
  • Page 2 IMPORTANT: The Warranty Registration/Start-Up Report found in the front of this manual is to be completed and returned to the factory promptly after the official start-up. Please return to: Vogt Ice, LLC 1000 W. Ormsby, Suite 19 Louisville, KY 40210 Att. Service Department...
  • Page 3 1440 (freeze time + harvest time) The machine operated satisfactorily for ___ continuous hours. Date _______________________________________ Comments__________________________________________________________________________________________________________ __________________________________________________________________________________________________________________ Installer signature ____________________________________________ End user signature _________________________________ Please return to: Vogt Ice LLC, 1000 W. Ormsby, Suite #19, Louisville, KY 40210 12/20/12...
  • Page 4 12/20/12...
  • Page 5 ® ® ® ® VOGT ® TUBE-ICE MACHINES P24A & P34A Model Installation, Service Manual, and Parts Catalog #12A4171L13 Vogt Ice, LLC 1000 W. Ormsby Avenue, Suite 19 Louisville, Kentucky, 40210 800-853-8648 • 502-635-3000 Fax: 502-634-0479 12/26/12...
  • Page 6 12/20/12...

  • Page 7: Table Of Contents

    P24A & P34A Service Manual TABLE OF CONTENTS TABLE OF CONTENTS Vogt ® ® TUBE-ICE MACHINES Model P24A & P34A Page No. 1. INTRODUCTION A Brief History Of Our Company ..........................1-1 Vogt Energy-Savings Tube-Ice® Machines ........................1-1 Preview ..................................1-1 Important Safety Notice..............................1-2 Safety Symbols and What They Mean...........................1-2 Special Precautions To Be Observed When Charging Refrigeration Systems...............1-3 ®...

  • Page 8: Page No

    P24A & P34A Service Manual TABLE OF CONTENTS Page No. 3. INSTALLING YOUR TUBE-ICE MACHINE (Cont.) Cooling Tower ................................3-11 Condenser Water Requirements TABLE 3-2 ........................3-12 Marley Cooling Tower Recommendations TABLE 3-3 ....................3-12 Safety Valves ................................3-12 Cooling Tower Piping Diagram, FIGURE 3-7 ......................3-14 Freeze Protection, FIGURES 3-8, 3-9, 3-10 ........................3-14,3-15 Wiring and Electrical Connections ..........................3-15 Power Supply Connections, FIGURE 3-11 ........................3-16...
  • Page 9 P24A & P34A Service Manual TABLE OF CONTENTS Page No. 6. ELECTRICAL CONTROLS & THEIR FUNCTIONS (Cont.) Electrical Schematic All Voltages 50-60 Hz. Part Wind Start Comp Motor Starter, FIGURE 6-4.......6-5 Description of Control Panel Parts, Part Wind Start, TABLE 6-3 .................6-5 Electrical Schematic All Voltages 50-60 Hz.
  • Page 10 P24A & P34A Service Manual TABLE OF CONTENTS Page No. 9. SERVICE OPERATIONS Automatic Blowdown (Harvest Cycle)..........................9-1 Cleaning the Ice Making Section ...........................9-1 Float Valve (Make-Up Water) ............................9-1 Float Switch...................................9-1 Hand Expansion Valve ..............................9-2 Freeze Timer..................................9-2 Freezer Pressure Switch, FIGURE 9-1 ..........................9-2 High/Low Pressure Switch ............................9-2 High/Low Pressure Switch, FIGURE 9-2........................9-3 Fan Control (Cooling Tower) ............................9-3...
  • Page 11 P24A & P34A Service Manual TABLE OF CONTENTS Page No. 9. SERVICE OPERATIONS Refrigerant Leaks................................9-18 Non-Condensable Gases ..............................9-18 Purging Non-Condensables ............................9-18 Draining the Oil Trap..............................9-19 Removing Excess Water from Ammonia ........................9-20 Circulating Water Pump Motor .............................9-21 The Thaw Gas Solenoid Valve ............................9-21 Thaw Gas Solenoid Valve, FIGURE 9-7........................9-21 The Liquid Feed Solenoid Valve ...........................9-22 The Liquid Feed Solenoid Valve, FIGURE 9-8......................9-22...
  • Page 12 12/20/12...

  • Page 13: Introduction

    1. Introduction Vogt Ice, L.L.C. A Brief History Of Our Company. Vogt Ice, L.L.C. (formerly Henry Vogt Machine Co.) was founded as a small machine shop in Louisville, Kentucky in 1880. Today, it is one of the world’s leading producers of ice-making equipment.

  • Page 14: Important Safety Notice

    P24A & P34A Service Manual INTRODUCTION Important Safety Notice. This information is intended for use by individuals possessing adequate backgrounds in electrical, refrigeration and mechanical experience. Any attempt to repair major equipment may result in personal injury and/or property damage. The manufacturer or seller cannot be responsible for the interpretation of this information, nor can it assume any liability in connection with its use.
  • Page 15 P24A & P34A Service Manual INTRODUCTION Special Precautions To Be Observed When Charging Refrigeration Systems. Only technically- qualified persons, experienced and knowledgeable in the handling of anhydrous ammonia refrigerant and operation of refrigeration systems, should perform the operations described in this manual. All local, federal, and EPA regulations must be strictly adhered to when handling ammonia (R-717) refrigerant.
  • Page 16 P24A & P34A Service Manual INTRODUCTION FIGURE 1-1 P24A Front Side (Control Panel) 12/18/12...
  • Page 17 P24A & P34A Service Manual INTRODUCTION FIGURE 1-2 P24A Right Side 12/18/12...
  • Page 18 P24A & P34A Service Manual INTRODUCTION FIGURE 1-3 P24A Back Side 12/18/12...
  • Page 19 P24A & P34A Service Manual INTRODUCTION FIGURE 1-4 P24A Left Side 12/18/12...
  • Page 20 P24A & P34A Service Manual INTRODUCTION FIGURE 1-5 P34A Front Side 12/18/12...
  • Page 21 P24A & P34A Service Manual INTRODUCTION FIGURE 1-6 P34A Right Side 12/18/12...
  • Page 22 1-10 P24A & P34A Service Manual INTRODUCTION FIGURE 1-7 P34A Back Side 12/18/12...
  • Page 23 P24A & P34A Service Manual 1-11 INTRODUCTION FIGURE 1-8 P34A Left Side (Control Panel) 12/18/12...

  • Page 24: P24A Compressor Diagram

    1-12 P24A & P34A Service Manual INTRODUCTION FIGURE 1-9 P24A Compressor Diagram 12/18/12...

  • Page 25: Receipt Of Your Tube-Ice Machine

    Any repair work or alteration to the machine without the permission of Vogt Ice L.L.C. can void the machine’s warranty. You should also notify your Vogt distributor or the factory.
  • Page 26 P24A & P34A Service Manual RECEIPT OF YOUR TUBE-ICE MACHINE The machine is available in three different tube sizes for producing ice 7/8” OD x 1” long, 1 1/8” OD x 1” long, or 1 3/8” OD x 1” long. The ice is cut to length by a rotating breaker type cutter. Ice can be produced up to 1 1/2”...

  • Page 27: Rated Capacity

    P24A & P34A Service Manual RECEIPT OF YOUR TUBE-ICE MACHINE ® Rated Capacity. The Tube-Ice machine is rated to produce a given amount of ice when operating under the proper conditions as specified in this manual. You should be prepared to handle the ice produced as it is discharged from the machine and move it to your storage or bagging area promptly.
  • Page 28 P24A & P34A Service Manual RECEIPT OF YOUR TUBE-ICE MACHINE 12/26/12...

  • Page 29: Installing Your Tube-Ice Machine

    ® These figures are intended as a guide to unloading and lifting the P24A and P34A Tube-Ice machine. Vogt Ice, L.L.C. is not responsible for product damage or personnel injury or loss of life during the loading or lifting procedure.
  • Page 30 P24A & P34A Service Manual INSTALLING YOUR TUBE-ICE MACHINE FIGURE 3-1A P24A Space Diagram (Front View) 12/20/12...
  • Page 31 P24A & P34A Service Manual INSTALLING YOUR TUBE-ICE MACHINE FIGURE 3-1B P24A Space Diagram (Side View) 12/20/12...

  • Page 32: P24A Foundation Layout, Figure 3-2

    P24A & P34A Service Manual INSTALLING YOUR TUBE-ICE MACHINE FIGURE 3-2 P24A Foundation Layout 12/20/12...
  • Page 33 P24A & P34A Service Manual INSTALLING YOUR TUBE-ICE MACHINE FIGURE 3-3A P34A Space Diagram (Front View) 12/20/12...
  • Page 34 P24A & P34A Service Manual INSTALLING YOUR TUBE-ICE MACHINE FIGURE 3-3B P34A Space Diagram (Side View) 12/20/12...

  • Page 35: P34A Foundation Layout, Figure 3-4

    P24A & P34A Service Manual INSTALLING YOUR TUBE-ICE MACHINE FIGURE 3-4 P34A Foundation Layout 12/20/12...

  • Page 36: Lifting Procedure For P24A, Figure 3-5

    P24A & P34A Service Manual INSTALLING YOUR TUBE-ICE MACHINE FIGURE 3-5 Lifting Procedure for P24A 12/20/12...

  • Page 37: Lifting Procedure For P34A, Figure 3-6

    P24A & P34A Service Manual INSTALLING YOUR TUBE-ICE MACHINE FIGURE 3-6 Lifting Procedure for P34A 12/20/12...

  • Page 38: Make-Up Water In

    3-10 P24A & P34A Service Manual INSTALLING YOUR TUBE-ICE MACHINE Piping and Drain Connections. See Figure 1-1 to 1-8 for connection locations. CAUTION Exterior shut-off valves must be provided in the water inlet lines. The minimum inlet water pressure for satisfactory operation of the machine is 40 psig.
  • Page 39 P24A & P34A Service Manual 3-11 INSTALLING YOUR TUBE-ICE MACHINE through the heads during shutdown. Do not connect this drain line into a common header with any drain line from the water tank. Note: The water regulating valve contains a 1/8” orifice through inter gate to permit some flow though the compressor if the solenoid is open.
  • Page 40 3-12 P24A & P34A Service Manual INSTALLING YOUR TUBE-ICE MACHINE P24A Condenser Water P34A Condenser Water Entering Flow Cond. Entering Flow Cond. Water PSID Water PSID 85°F 85°F 80°F 80°F 75°F 75°F 70°F 70°F 65°F 65°F 60°F 60°F 55°F 55°F 50°F 50°F Total Heat Rejection...
  • Page 41 P24A & P34A Service Manual 3-13 INSTALLING YOUR TUBE-ICE MACHINE FIGURE 3-7 Cooling Tower Piping Diagram 12/20/12...
  • Page 42 3-14 P24A & P34A Service Manual INSTALLING YOUR TUBE-ICE MACHINE COOLING TOWER WATER COOLED CONDENSER CHECK VALVE INDOOR SUMP FIGURE 3-8 1 PUMP/2-WAY VALVE * Poor Freeze Protection Because low flow rate = high freeze chance COOLING TOWER WATER COOLED CONDENSER Same flow rate to cooling tower...

  • Page 43: Cooling Tower

    P24A & P34A Service Manual 3-15 INSTALLING YOUR TUBE-ICE MACHINE COOLING TOWER WATER COOLED CONDENSER CHECK VALVE INDOOR SUMP Outdoor pump is off until indoor sump needs cooling FIGURE 3-10 2 PUMP/2-WAY VALVE * Best Freeze Protection Wiring and Electrical Connections. WARNING Only service personnel experienced in refrigeration and qualified to work with high voltage electrical equipment should be allowed...

  • Page 44: Power Supply Connections, Figure 3-11

    3-16 P24A & P34A Service Manual INSTALLING YOUR TUBE-ICE MACHINE FIGURE 3-11 Power Supply Connections Voltage Unbalance. Voltage unbalance can cause motors to overheat and fail. Voltage imbalance between any two legs should be no greater than 2%. Example: Supply voltage = 230-3-60 Voltage Readings: AB = 220 Volts BC = 225 Volts...

  • Page 45: Current Unbalance

    P24A & P34A Service Manual 3-17 INSTALLING YOUR TUBE-ICE MACHINE Higher current causes more heat to be generated in the motor windings. The maximum acceptable current unbalance is 10%. Example: Current Readings: L1 = 96 Amps L2 = 91 Amps Average = (96 + 91 + 98)/3 = 95Amps L3 = 98 Amps (L1) 96-95 = 1 Amps...

  • Page 46: Auxiliary Controls Or Equipment

    3-18 P24A & P34A Service Manual INSTALLING YOUR TUBE-ICE MACHINE Auxiliary Controls or Equipment. When connecting other equipment such as tower fan, condenser pump, conveyor motors, bin level control, etc., refer to the control panel wiring drawing for the proper connecting terminals and instructions. See Figure 6-3. IMPORTANT Be sure to follow the wiring schematic when incorporating overloads of conveyor, fan, or pump motor starters (i.e., 5 MOL, 6 MOL, 7 MOL).

  • Page 47: How Your Tube-Ice Machine Works

    P24A & P34A Service Manual HOW YOUR TUBE-ICE MACHINE WORKS 4. How Your Tube-Ice Machine Works ® Operating Features. Your packaged Tube-Ice machine is an efficient ice producing plant. If installed and maintained properly, it will give many years of operation with a minimum amount of repairs.

  • Page 48: Harvest Period

    P24A & P34A Service Manual HOW YOUR TUBE-ICE MACHINE WORKS Harvest Period. About 20-30 seconds after the 1CR relay is energized, the thaw gas valve (18) opens, the “H” water flush solenoid valve (63) opens, the compressor unloads, the cutter motor starts, the thaw timer (2TR) is energized, the red thawing gas light illuminates, and auxiliary equipment such as conveyors etc.

  • Page 49: Piping Schematic For P24A, Figure 4-1

    P24A & P34A Service Manual HOW YOUR TUBE-ICE MACHINE WORKS FIGURE 4-1 Piping Schematic for P24A 8/25/05...

  • Page 50: Piping Schematic For P34A, Figure 4-2

    P24A & P34A Service Manual HOW YOUR TUBE-ICE MACHINE WORKS FIGURE 4-2 Piping Schematic for P34A 8/25/05...

  • Page 51: Start-Up And Operation

    P24A & P34A Service Manual START-UP & OPERATION 5. Start-Up & Operation Refrigeration System Review. The refrigeration system uses anhydrous ammonia (R-717) refrigerant. Following the piping schematic (Figure 4-1 or 4-2), you will see that during the machine’s freeze cycle, the compressor discharge gas goes through the oil separator (14) to remove any oil present in the discharge gas and return the oil to the compressor crankcase.

  • Page 52: Refrigerant Charge

    P24A & P34A Service Manual START-UP & OPERATION Start-up Checklist. Be sure to complete and return the “Warranty Registration/Start-up Report” located in the front of the manual. 1. See that the water-inlet connections are attached properly. The water inlet shutoff valve (62) for the water tank should be open.
  • Page 53 P24A & P34A Service Manual START-UP & OPERATION Charging From Tank Truck. The machine may be charged by bulk from a tank truck and be pumped directly into the receiver through the drain valve (44). Follow these instructions with caution: 1.
  • Page 54 P24A & P34A Service Manual START-UP & OPERATION If a refrigeration system is being charged from refrigerant cylinders, disconnect each cylinder when empty or when the system is fully charged. A gage should be installed in the charging line to indicate refrigerant cylinder pressure.
  • Page 55 P24A & P34A Service Manual START-UP & OPERATION FIGURE 5-1. Control Panel Start-Up. Starting the machine can be accomplished as follows: 1. Make sure the crankcase oil temperature is approximately 100°F and there is no liquid ammonia in the compressor crankcase. 2.

  • Page 56: Adding Refrigerant

    P24A & P34A Service Manual START-UP & OPERATION IMPORTANT Complete the remaining part of the “Warranty/Registration Start-Up Report” and return it to Vogt Tube Ice, L.L.C. IMPORTANT Check the refrigerant level at the receiver liquid gage glass to make sure it is near the operating level mark.

  • Page 57: Bin Level Control

    P24A & P34A Service Manual ELECTRICAL CONTROLS 6. Electrical Controls ® Your packaged Tube-Ice machine is equipped with a compressor motor starter (1M) as required for your particular voltage and a transformer (if required) for the control circuit power. The motor starter and transformer are mounted on the machine front side (see Figures 1-1 or 1-8).

  • Page 58: Control Panel (Door Opened), Figure 6-1

    P24A & P34A Service Manual ELECTRICAL CONTROLS FIGURE 6-1 Control Panel (Door Opened) (1M) Not shown Compressor Motor Provides power to the compressor motor. Continuously energized Starter during freezing and thawing with auxiliary hold contact and auxiliary contact to de-energize the compressor crankcase heater when the motor is running.

  • Page 59: Description Of Control Panel Parts (Outer Door), Table 6-2

    P24A & P34A Service Manual ELECTRICAL CONTROLS FIGURE 6-2 Control Panel (Hinged Door) (1LT) Blue Pilot Light - Freezing Illuminated during the freeze period or whenever the circulating water pump is running. (2LT) Clear Pilot Light - Liquid Feed Illuminated when the circulating water pump is running and the float switch (10) is closed.
  • Page 60 P24A & P34A Service Manual ELECTRICAL CONTROLS FIGURE 6-3 Electrical Schematic for P24A and P34A all Voltages, 50-60 Hz. 12/17/12...
  • Page 61 P24A & P34A Service Manual ELECTRICAL CONTROLS FIGURE 6-4 Part Wind Start Compressor Motor Starter Motor Starter contactor #1 Used to start compressor motor. Energizes first. 1M1OL Overload Relay #1 Provide over-current protection for one half of motor Motor Starter contactor #1 Used to start compressor motor.
  • Page 62 P24A & P34A Service Manual ELECTRICAL CONTROLS FIGURE 6-5 Across the Line Compressor Motor Starter Motor Starter contactor Used to start compressor motor. 1MOL Overload Relay Provide over-current protection for compressor motor. Circuit Breaker – 3 pole Provides short circuit protection and a disconnecting means to lowside control panel.
  • Page 63 P24A & P34A Service Manual ELECTRICAL CONTROLS FIGURE 6-6 Compressor Soft Start Motor Starter Compressor Run Relay Used to start compressor motor. Circuit Breaker – 3 pole Provides short circuit protection and a disconnecting means to lowside control panel. Supplies power to lowside unit. Enclosure Fan Fault Relay Energizes when soft start fault occurs...
  • Page 64 P24A & P34A Service Manual ELECTRICAL CONTROLS FIGURE 6-7 Allen Bradley Soft Start Motor Wiring 12/17/12...

  • Page 65: Allen Bradley Soft Start Settings And Faults, Table 6-6

    P24A & P34A Service Manual ELECTRICAL CONTROLS Soft Start Settings Setting Description Switch # On/Off Setting Current Limit or Softstart Soft Start Initial Torque (% of LRT) Start Time t1 (sec) 10 sec Kick Start Time t2 (sec) Soft Stop Time t3 (sec) Aux #1 (Normal/Up to Speed) Normal Overload Trip Class...

  • Page 66: Allen Bradley Soft Start Dip Switch Settings, Table 6-7

    6-10 P24A & P34A Service Manual ELECTRICAL CONTROLS TABLE 6-7 Allen Bradley Soft Start Dip Switch Settings 12/17/12...

  • Page 67: Maintenance

    P24A & P34A Service Manual MAINTENANCE 7. Maintenance ® Preventative Maintenance. A careful inspection of the Tube-Ice machine for leaks and correct operational functions at the time of installation and start-up will begin its long satisfactory life of service. In order to insure this degree of dependability, a systematic maintenance program is necessary.

  • Page 68: Preventative Maintenance Form

    P24A & P34A Service Manual MAINTENANCE PREVENTATIVE MAINTENANCE FORM This form can be removed and duplicated for record keeping. Date: _____________ Model #: ________________________ Serial #: _____________ The following service performed and checked: Hour meter reading _______________ , Ambient temperature (inside)_______ °F Make-Up water float valve adjusted properly Water distributors clean and in place All drains freely draining...

  • Page 69: Cleaning Procedure

    P24A & P34A Service Manual MAINTENANCE ® Ice Making Section. The ice making section of the Tube-Ice machine should be cleaned at least twice a year (more often if water conditions cause mineral build up). Use an approved food-grade ice machine cleaner. The water pump is used to circulate the cleaner through the system. For complete instructions, follow the “Cleaning Procedure”...

  • Page 70: Water Distributors, Table 7-1

    P24A & P34A Service Manual MAINTENANCE Tube Size 1 1/2” 1 1/4” 1” Model Number of Distributors P24A P34A TABLE 7-1 Water Distributors You may look through the plastic freezer cover to inspect the water distributors if the view is clear. For a closer inspection you should stop the unit, remove the nuts and retaining ring sections and lift off the top cover.

  • Page 71: Water Cooled Condenser Cleaning

    P24A & P34A Service Manual MAINTENANCE To clean the water tank: 1. Stop the machine at the end of harvest. 2. Shut off the make-up water supply. 3. Open the drain valve and drain the tank. 4. Remove the water box cover and flush out any loose sediment from the tank. The wire mesh screen can be removed if necessary.

  • Page 72: Cooling Tower Maintenance Schedule, Table 7-3

    P24A & P34A Service Manual MAINTENANCE Service/Frequency Start-Up Monthly Six Months Shutdown Clean debris from unit Clean strainer and flush sump Check fan and pump rotation Clean spray nozzles Check belt tension Check for noise/vibration Check/adjust make-up water valve Check/adjust bleed rate Check/lubricate fan bearings Lubricate motor base adj.

  • Page 73: Compressor Maintenance, Table 7-4

    P24A & P34A Service Manual MAINTENANCE Note: It is the owner’s responsibility to make sure normal maintenance is initiated to insure that the compressor is not subjected to premature wear or failure due to neglect or lack of sufficient maintenance and care. Frequency Thereafter Change oil...

  • Page 74: V-Belt Maintenance

    P24A & P34A Service Manual MAINTENANCE V-Belt Maintenance. Belts should be kept clean, free of oil and protected from sunlight as much as possible. To clean belts, they should be wiped with a dry cloth. The safest way to remove dirt and grime is to wash the belt with soap and water and rinse well.

  • Page 75: Troubleshooting

    P24A & P34A Service Manual TROUBLESHOOTING 8. Troubleshooting Note: Your machine’s electrical system has several built-in safety and overload protection features to stop operation when a single component fails or there is a problem from an outside source such a power supply. Make sure all auxiliary equipment is connected to incorporate safety and overload circuits and protect all related equipment.
  • Page 76 P24A & P34A Service Manual TROUBLESHOOTING Symptom: Machine Stopped Possible Cause Possible Remedy Power failure or interruption Check fused disconnect or circuit breaker supplying power to the machine. If power has been off, make sure the crankcase heater is energized and there is no liquid refrigerant in the compressor crankcase prior to restarting the compressor.
  • Page 77 P24A & P34A Service Manual TROUBLESHOOTING Symptom: Machine Stopped (con’t) Possible Cause Possible Remedy High/Low pressure safety switch (1PS) tripped If the machine stops by low pressure cutout, the switch will reset automatically when the pressure raises to the “cut-in” setting. Check thaw gas valve (18) to make sure it opens during harvest time.
  • Page 78 P24A & P34A Service Manual TROUBLESHOOTING Symptom: Freeze-up due to extended freeze period Possible Cause Possible Remedy Freezer pressure switch (2PS) set too low or Adjust switch or replace if defective. defective FIGURE 9-1. Water tank drain valve, make-up water float Close, repair, or replace valve as needed.

  • Page 79: Purging Non-Condensables

    P24A & P34A Service Manual TROUBLESHOOTING Symptom: Freeze-up due to ice failing to discharge Possible Cause Possible Remedy Extended freeze period Check freezer pressure switch (2PS) adjustment. See FIGURE 9-1 for adjustment and TABLE 7-2 for average hole size. Make sure all water distributors are in place (one in each tube).
  • Page 80 P24A & P34A Service Manual TROUBLESHOOTING Symptom: Low ice capacity. Suspicions of low ice capacity should be confirmed by accurate calculations of actual ice product. Much weight can be lost by melting and off fall through augers and other ice handling equipment. 1.
  • Page 81 P24A & P34A Service Manual TROUBLESHOOTING Symptom: Low ice capacity (cont.) Possible Cause Possible Remedy Excessively high head pressure Check cooling tower or evap condenser to make sure sufficient water is provided for cooling and the equipment is operational to cool the water.
  • Page 82 P24A & P34A Service Manual TROUBLESHOOTING Symptom: High discharge pressure (check gage accuracy) Possible Cause Possible Remedy Insufficient water flow through the cooling Check the condenser water pump to make sure tower or condenser it is pumping enough water as specified in TABLE 3-2.
  • Page 83 P24A & P34A Service Manual TROUBLESHOOTING Symptom: Low discharge pressure (check gage accuracy) Possible Cause Possible Remedy Fan cycling switch out of adjustment or Check adjustment. Refer to FIGURE 9-3, “Fan defective Control”. Replace if defective. Compressor running unloaded or not pumping Check compressor motor amp.
  • Page 84 8-10 P24A & P34A Service Manual TROUBLESHOOTING Symptom: Compressor oil pressure low (check gages) See Section 7, for compressor oil pressure requirements. Possible Cause Possible Remedy Oil diluted with refrigerant Oil will be very foamy. Check liquid feed control for overfeed problem. Oil pressure regulating valve out of adjustment Adjust valve to increase oil pressure.
  • Page 85 P24A & P34A Service Manual 8-11 TROUBLESHOOTING Symptom: Machine short cycles Possible Cause Possible Remedy Freezer pressure switch (2PS) set too low or Adjust switch or replace if defective. defective FIGURE 9-1. Freeze-up See “Freeze-up due to extended freezer period” and “Freeze-up due to ice failing to discharge”.
  • Page 86 8-12 P24A & P34A Service Manual TROUBLESHOOTING Symptom: Suction line frosting to compressor Possible Cause Possible Remedy Liquid refrigerant overfeed Check float switch to make sure it is functioning properly. Replace if defective. Check solenoid valve #20 to make sure it is not leaking through.

  • Page 87: Float Switch

    P24A & P34A Service Manual SERVICING OPERATIONS 9. Servicing Operations Automatic Blowdown (harvest cycle). A feature of this machine is a solenoid activated flushing valve (63) which is provided to eliminate or reduce the necessity for frequent flushing or cleaning of the water tank.
  • Page 88 P24A & P34A Service Manual SERVICING OPERATIONS Hand Expansion Valve. The hand expansion valve is located directly after the “A1” solenoid valve. This valve should be set at a point where the float switch is open for a length of time approximately equal to the time it is closed.

  • Page 89: High/Low Pressure Switch

    P24A & P34A Service Manual SERVICING OPERATIONS CAUTION When this switch causes the machine to stop, the cause should be identified and corrected before resuming normal operation. CAUTION The LOW pressure cut-in should be set at 35 psig and the cut-out set at 15 psig. After tripping at the cut-out setting, the switch will reset automatically when the pressure rises to the cut-in setting.

  • Page 90: Compressor Crankcase Heater

    P24A & P34A Service Manual SERVICING OPERATIONS Compressor Crankcase Heater. When electrical power is supplied to terminals 12 and 22 of the control panel (see Figure 6-3), the crankcase heater is energized when the compressor is not running. It is deenergized when the compressor is operating. Adjust the heater to maintain a temperature of the oil in the crankcase at 100-110°F (38-43°C) when the compressor is not running.

  • Page 91: Thawing Timer

    P24A & P34A Service Manual SERVICING OPERATIONS Thawing Timer. The thawing timer (2TR), Figure 9-5, governs the ice thawing period. It is located inside the control panel (FIGURE 6-1). It is started by action of the freezer pressure switch (2PS) which energized the “1CR”...

  • Page 92: Condenser Cleaning

    P24A & P34A Service Manual SERVICING OPERATIONS Condenser Cleaning. There are 124- 1 1/4” OD x 84” long steel tubes in the P24A condenser/ receiver. These tubes are approximately 1 1/32” inside diameter (contact the factory for P34A condenser tube sizing). Any brush or cleaning tool should be sized accordingly so as not to damage the tubes during cleaning.

  • Page 93: Drive Gear Replacement

    P24A & P34A Service Manual SERVICING OPERATIONS Drive Gear Replacement. 1. Disconnect and lock-out all power to the machine. 2. Remove the top and side bolts holding the mounting plate to the support bracket. Lift the plate and gear reducer from the bracket and rest the assembly on a stable work table sitting next to the tank.

  • Page 94: Gear Reducer Replacement

    P24A & P34A Service Manual SERVICING OPERATIONS Gear Reducer Replacement. 1. Disconnect and lock out all power to the machine. 2. Disconnect electrical wires and conduit from the motor. 3. Remove the top and side bolts holding the mounting plate to the support bracket and lift the plate and gear reducer assembly from the tank bracket.

  • Page 95: Water Tank And Cutter Parts Weights, Table 9-1

    P24A & P34A Service Manual SERVICING OPERATIONS The weights listed in TABLE 9-1 will give you an idea of manpower or equipment needed when servicing and handling the various parts of the water tank and cutter. Be sure to use safe lifting and handling practices to prevent bodily injury and/or damage to parts.

  • Page 96: Cutter Assembly Removal And Installation

    9-10 P24A & P34A Service Manual SERVICING OPERATIONS Cutter Assembly Removal and Installation. 1. Follow water tank removal instructions, Steps 1-9. See Figure 9-5B. 2. Remove the socket head cap screw from the center of the cutter shaft and lift out the retainer and gasket.

  • Page 97: Cutter Shaft And Bearing Installation

    P24A & P34A Service Manual 9-11 SERVICING OPERATIONS Cutter Shaft and Bearing Installation. 1. Clean the inside of the bearing housing of grease or foreign matter. Further clean the top bearing housing with pro-lock cleaner and primer (or a suitable substitute) and remove the pipe plugs from the side of the housing.

  • Page 98: Water Tank Installation

    9-12 P24A & P34A Service Manual SERVICING OPERATIONS Cutter Height Adjustment. The height of the cutter can be adjusted by the four bolts holding the bearing bracket assembly in place. These bolts are threaded into holes in the end of each arm through holes in the water tank.

  • Page 99: P24A Water Tank Assembly, Figure 9-5B

    P24A & P34A Service Manual 9-13 SERVICING OPERATIONS Figure 9-5B P24A Water Tank Assembly 12/18/12...
  • Page 100 9-14 P24A & P34A Service Manual SERVICING OPERATIONS Item # Description P24A Part Number P34A Part Number Water Tank Assembly 19T4500S24 19T4500S34 Water Box Cover (Not Shown) 19T2150C01 19T2150C02 Water Pump See Pump Model # See Pump Model # 2” Red Rubber Gasket 12A 2600R07 12A 2600R08 2 1/2”...

  • Page 101: Cutter Ring Gear Replacement

    P24A & P34A Service Manual 9-15 SERVICING OPERATIONS Cutter Ring Gear Replacement. 1. Remove the water tank assembly (see water tank removal). 2. Remove the cutter assembly from the cutter shaft. 3. Remove the 3/16” drive pins (1/4” on P34A) which hold the ring gear to the cutter bank (P24=6 pins, P34=8 pins).

  • Page 102: Cutter Blade And Adapter Plate Adjustment, Figure 9-6

    9-16 P24A & P34A Service Manual SERVICING OPERATIONS Figure 9-6 Cutter Blade and Adapter Plate Adjustment Cutter Adapter Plate Installation. 1. Disconnect and lock-out all power to the machine and remove the water tank assembly so the cutter is accessible (see water tank removal). 2.
  • Page 103 P24A & P34A Service Manual 9-17 SERVICING OPERATIONS Pumpdown. The function of the pumpdown is to transfer all the liquid refrigerant from the freezer (evaporator) into the receiver. Pumpdown should only be performed when the freezer is clear of ice. Its main purposes are: 1.
  • Page 104 9-18 P24A & P34A Service Manual SERVICING OPERATIONS WARNING It is not recommended that refrigerant to be transferred from a refrigeration system directly into a cylinder. If such a transfer is made, the refrigerant cylinder must be an approved, CLEAN cylinder--free of any contaminants or foreign materials--and must be weighed continuously to assure contents do not exceed net weight specified by cylinder manufacturer of any applicable code requirements.

  • Page 105: Draining The Oil Trap

    P24A & P34A Service Manual 9-19 SERVICING OPERATIONS Air collects mostly in high pressure condensers, receivers, and other high-pressure components. It collects mostly in the coolest, lowest-velocity area of these components. Evaporative condensers usually have purge points at the top of the outlet header of each circuit. Receivers usually have a purge point at the top, away from the inlet, where it is coolest and the gas velocity is the lowest.

  • Page 106: Removing Excess Water From Ammonia

    9-20 P24A & P34A Service Manual SERVICING OPERATIONS Removing Excess Water from Ammonia If excessive water is in the ammonia, it will cause frost on the suction line to the compressor, and dilution of the oil. This condition should not go uncorrected and the water needs to be removed. 1.

  • Page 107: Circulating Water Pump Motor

    P24A & P34A Service Manual 9-21 SERVICING OPERATIONS Circulating Water Pump Motor. The motor bearings are prelubricated and sealed. They require no further lubrication. The pump should operate with the water level above the impeller housing. The pump is equipped with a mechanical seal, which is self-adjusting and requires no lubrication. However, the pump should not be operated unless circulating water.

  • Page 108: The Liquid Feed Solenoid Valve

    9-22 P24A & P34A Service Manual SERVICING OPERATIONS The Liquid Feed Solenoid Valve (20), Figure 9-8, is opened and closed during the freezer cycle by the float switch #10, in order to maintain the proper freezer refrigerant level. It is closed when the machine is off to prevent liquid flow from the receiver to the freezer.

  • Page 109: Compressor Cooling Solenoid Valve ( Dedicated High Side Only)

    P24A & P34A Service Manual 9-23 SERVICING OPERATIONS Compressor Cooling Solenoid Valve (64) is opened all the time the compressor is running. It provides water for cooling the compressor oil and heads. There should be no water flow through the compressor heads when the compressor is not running.

  • Page 110: Belt Tension

    9-24 P24A & P34A Service Manual SERVICING OPERATIONS Belt Tension. New belts should be checked after the first day running, after the first week for tension, then at regular intervals for tension, alignment, and wear 1. Always use matched sets or banded belts for multiple belt applications. 2.

  • Page 111: 10. Options And Accessories

    P24A & P34A Service Manual 10-1 OPTIONS AND ACCESSORIES 10. Options and Accessories Crushed Ice Production Your P24A/P34A Tube-Ice machine is capable of producing crushed ice with no loss of capacity; however, there are certain changes to be made in order to convert to crushed ice production. The following modifications are required: 1.

  • Page 112: Power Monitor

    10-2 P24A & P34A Service Manual OPTIONS AND ACCESSORIES Power Monitor Wagner Model #: DTP-3 All Vogt Tube-Ice machine models are available from the factory with a three phase line voltage power monitor with LCD display. The units are also available for after market or retrofit installation.
  • Page 113 P24A & P34A Service Manual 10-3 OPTIONS AND ACCESSORIES Default Recommended Parameter Minimum Maximum Unit Settings Supply voltage Line Side Voltage Volts (Nominal Voltage) Under /Over Voltage (tolerance) Phase Unbalance Lockout Time Seconds (Delay on Break) Delay Time Seconds (Delay on Make) Response Time Seconds (Delay on Fault)
  • Page 114 10-4 P24A & P34A Service Manual OPTIONS AND ACCESSORIES Display of fault memories (MEM flashes) Pressing up or down displays the last fault conditions that took the unit off line. The first 25 faults are recorded. The top number displayed represents the fault memory. The middle number represents the total number of faults that have occurred since the fault memory was cleared.

  • Page 115: Tables And Charts

    P24A & P34A Service Manual 11-1 TABLES & CHARTS 11. Tables & Charts 12/18/12...
  • Page 116 11-2 P24A & P34A Service Manual TABLES & CHARTS P24A SPECIFICATIONS, 400/460 Volt-3 Phase- 50/60Hz Tube Size inches (cm) 1 1/4 1 1/2 (2.54) (3.17) (3.18) Tons/day (M Tons/day) Nominal Capacity 21.0 (19.0) 22.6 (19.9) 20.0 (18.1) Overall Dimensions (LxWxH) Feet (meters) 7.5x8x14.5 7.5x8x16 (2.3x2.4x4.8)
  • Page 117 P24A & P34A Service Manual 11-3 TABLES & CHARTS P34A SPECIFICATIONS, 400/460 Volt-3 Phase- 50/60Hz Tube Size inches (cm) 1 1/4 1 1/2 (2.54) (3.17) (3.18) Tons/day (M Tons/day) Nominal Capacity 38.6 (35.0) 42.7 (38.7) 38.8 (35.2) Feet (meters) Overall Dimensions (LxWxH) 8.5x9x14.5 8.5x9x16 (2.5x2.7x4.8) 8.5x9x16 (2.5x2.7x4.8)
  • Page 118 11-4 P24A & P34A Service Manual TABLES & CHARTS P24A Capacity Ratings Makeup Rated Capacity (lbs/day) Water 60Hz 50Hz Temp. Cylinder Crushed Cylinder Crushed Deg. F 1" 1 1/4" 1 1/2" 1" 1 1/4" 1 1/2" 1" 1 1/4" 1 1/2" 1"...
  • Page 119 P24A & P34A Service Manual 11-5 TABLES & CHARTS Condensing Entering Leaving Water Flow Pressure Average Total Heat Water Water Drop Temp. °F of Rejection Temp. °F Temp. °F psig BTU/HR 981,300 981,300 981,300 981,300 981,300 981,300 981,300 981,300 Table 11-4 P24A Condenser Water Usage Condensing Entering...
  • Page 120 11-6 P24A & P34A Service Manual TABLES & CHARTS Cylinder Ice Crushed Ice Make-Up Water Tube Size Tube Size Temp. °F 1” 1 1/4” 1 1/2” 1” 1 1/4” 1 1/2” 5.25 5.59 5.18 6.30 6.98 6.47 4.96 5.26 4.88 6.20 6.57 4.71...
  • Page 121 P24A & P34A Service Manual 11-7 TABLES & CHARTS Suction Pressure Discharge Pressure Harvest Times Ice per Freeze Time (psig) (psig) (secs) cycle (minutes) End of End of End of End of First All Ice Total Average Water Temperature (deg. F) (lbs) Freeze Thaw...

  • Page 122: Recommended Spare Parts List

    11-8 P24A & P34A Service Manual TABLES & CHARTS RECOMMENDED SPARE PARTS LIST ® Vogt Model P24A and P34A Tube-Ice Machine P24A PART NO. P34A PART NO. DESCRIPTION 12A7503E22 12A7503E22 Thaw timer 208/230 12A2590G12 12A2590G10 Suction pressure gage 30”-150# 12A2590G13 12A2590G13 Discharge pressure gage 30”-300# 12A4200H0601...
  • Page 123 P24A & P34A Service Manual 11-9 TABLES & CHARTS TEMPERATURE - PRESSURE CHART FOR COMMON REFRIGERANTS (°F-psig) DegF R-12 R-22 R-502 R-134a R-404A R-717 MP-39 DegF R-12 R-22 R-502 R-134a R-404A R-717 MP-39 -7.6 -3.0 -9.0 -7.0 -9.1 46.7 84.0 97.4 45.5 102.9...
  • Page 124 11-10 P24A & P34A Service Manual TABLES & CHARTS REFERENCE INFORMATION CONVERSION FACTORS: English to Metric To Convert From Multiply by Area 9.2903e-2 6.416 e-4 Energy Joule (J) 1054.48 BTU/Hr 2546.2 1.34 Length 0.3048 0.0254 Pressure lbf/ft Paschals 47.88 lbf/in (psi) Paschals 6894.76...
  • Page 125 Appendix A...
  • Page 126 Material Safety Data Sheet # 4001 NDUSTRIES INC OCHE 2/15/96 SECTION 1: CHEMICAL PRODUCT & COMPANY IDENTIFICATION CHEMICAL NAME: Anhydrous Ammonia TRADE NAMES/SYNONYMS Ammonia PRODUCT CODE: 5B81-83 MANUFACTURER AND/OR DISTRIBUTOR: EMERGENCY TELEPHONE NUMBERS: LaRoche Industries Inc. Transportation (CHEMTREC): (800) 424-9300 1100 Johnson Ferry Rd., NE Environmental/Health/Safety: (800) 528-4963...
  • Page 127 SECTION 8: EXPOSURE CONTROLS/PERSONAL PROTECTION RESPIRATORY PROTECTION: Respiratory protection approved by NIOSH/MSHA for ammonia must be used when exposure limits are exceeded. Whether a chemical cartridge respirator or a self-contained breathing apparatus is sufficient for effective respiratory protection depends on the type and magnitude of exposure. EYE PROTECTION: Chemical splash goggles, approved for use with ammonia, must be worn to prevent eye contact with liquid or vapor.
  • Page 129 Copyright 1989 by LaRoche Industries Inc. All rights reserved. Quotation or production in whole or part without written permission is expressly prohibited.
  • Page 143 P24A & P34A Service Manual 12-1 INDEX 12. Index A Brief History Of Vogt Tube Ice, L.L.C.-----------------1-1 Condenser Safety Valves (50) ---------------------------------- Adding Refrigerant---------------------------------------------5-6 P24A ----------------------------------------------------- 1-6 Ammonia Specification by Grade--------------------------5-2 P34A ----------------------------------------------------1-10 Ammonia (amount required) --------------------------------5-2 Condenser Taw Gas Outlet Stop Valve (89)----------- 1-8 Ammonia Removal ------------------------------------------ 9-17 Condenser Water In And Out -----------------------------3-11 Assembly Drawing P24A------------------------ 1-4, 1-5, 1-6...
  • Page 144 12-2 P24A & P34A Service Manual INDEX Foundation -------------------------------------------------------3-1 Make-Up Water Float Valve (12)-------------------------- 1-9 foundation layout for P24A ---------------------------3-4 foundation layout for P34A ---------------------------3-7 Make-Up Water Flow Rate---------------------------------- 2-3 Freeze Period ---------------------------------------------------4-1 Make-Up Water In--------------------------------------------3-10 Freeze Protection Diagram------------------------ 3-14, 3-15 Make-Up Water Temperature------------------------------ 2-3 Freeze-Up Due To Extended Freeze Period -----------8-4 Make-Up Water Stop Valve(62) --------------------------- 1-4...
  • Page 145 P24A & P34AService Manual 12-3 INDEX Power Monitor------------------------------------------------ 10-2 Specifications for P24A-------------------------------2-3, 11-2 Contactor fault monitor mode -------------------- 10-3 Specifications for P34A-------------------------------2-3, 11-3 Control mode ----------------------------------------- 10-3 Start Push Button (2PB)------------------------------ 5-5, 6-3 Display of Fault Memories ------------------------ 10-4 Start Time Adjustment (Soft Starter)------------------ 10-13 Delay time --------------------------------------------- 10-3 Start-Up ---------------------------------------------------------- 5-5 Imbalance Voltage ---------------------------------- 10-3...
  • Page 146 12-4 P24A & P34A Service Manual INDEX 12/26/12...

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