VOGT ICE 12A4171M12 Manuale utente

8/28/00

MHG-LR MODULAR

TURBO

REFRIGERATING®

ICE MACHINE

Manual Part Number 12A4171M12

Service Manual

$50

NOTICE

This manual is the property of the owner of this particular Tube-Ice®

machine.

Model #____________________ Serial #____________________.

It is to be left on the premises with this machine at all times. After start-

up, it should be stored in a safe place where it can be readily available

when needed for future reference in maintaining troubleshooting or

servicing.

Failure to comply with this notice will result in unnecessary

inconvenience and possible additional expenses.

This manual is intended as an informational tool for the installation,

operation, maintenance, troubleshooting, and servicing of this equipment.

If an existing situation calls for additional information not found herein,

we suggest that you contact your distributor first. If further assistance or

information is needed, please feel free to contact the factory at 502-635-

3000 or FAX at 502-635-3024.

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 Ave.

Louisville, KY 40210

8/28/00

Warranty Registration / Start-Up Form

(Medium & Large Machines)

Model Number: __________________________ Serial Number: __________________________

This form must be filled out completely and signed by the customer in order to assure acceptance by Vogt.

Date of Start-Up: _______________________________ Form Completed By: _____________________________________

AC Condenser Model Number: _____________________ AC Condenser Serial Number: _____________________________

Water Treatment System? Yes No Manufacturer: ____________________ Model: ________________________

Bin Manufacturer: _______________________ Model: _________________________ Bin Capacity: _______ lbs.

Distributor

Company Name: ____________________________________________ Phone: _______________________

Address: ____________________________________ City: _________________________ State: ___________ Zip: ___________

Service Company

Company Name: ____________________________________________ Phone: _______________________

Address: ____________________________________ City: _________________________ State: ___________ Zip: ___________

Customer (location of equipment)

Company Name: ____________________________________________ Phone: _______________________

Address: ____________________________________ City: _________________________ State: ___________ Zip: ___________

PRE-OPERATION CHECK

Service Manual on hand

Machine room suitable 50°F minimum, 110°F maximum

Power Supply ______ V _____ PH _____ Hz (machine not running)

Compressor crankcase heater on 12 hour minimum

All valves opened or closed as tagged

Solenoid valve stems in auto position

System leak checked/tight

Auxiliary equipment overloads wired into control circuit

Water supply and drains connected properly

Sufficient make-up water supply (minimum 30 PSIG)

Instruction manual and warranty certificate left on-site

Name of person left with: __________________________________

OPERATION CHECK

Power Supply ______ V _____ PH _____ HZ (machine running)

Pump , cutter & other motor direction of rotation correct

Water pump amps RLA__________ Actual __________

Condenser motor amps (if applicable) _________

Incoming potable water temperature: _____°F

All water distribution in place (visually inspected)

Make-up water float valve operates properly

Clear ice Yes No

Hour meter in control panel connected and operating

Suction Pressure: End of freeze ________ End of harvest ________

Discharge Pressure: End of freeze ________ End of harvest ________

Test

Cycle

Make-up

Water Temp

Freeze Time

Min/Sec

Harvest Time

Min/Sec

First Ice Out

Min/Sec

All Ice Out

Min/Sec

Avg. Hole

Size

Ice

Lb. Per Harvest

Ice

Lb. Per Day

Note: Ice lb. per day can be found by:

Remarks:

Technician Signature: ___________________________ End User Signature:_____________________________

I certify that I have performed all of the above procedures.

1440×

+me)harvest titime(freeze

harvestperlb.ice

Vogt Ice L.L.C.

1000 W. Ormsby

Louisville, KY 40210

(502) 635-3235

FAX #502-635-3024

THIS FORM MUST BE SENT TO

VOGT TO ACTIVATE WARRANTY

Vogt Order Number: ____________________

3/30/10

VOGT ICE







, LLC, located in

Louisville, Kentucky since 1880.

Sales - (800) 853-8648

Parts and Service - (502) 635-3000

Since 1880, Manufacturers of Quality

Tube-Ice

Machines

Vogt



Turbo Refrigerating



Ice Machines

Installation, Service Manual and Parts Catalog #12A4171M12

Modular Lowside Model

MHG-LR Service Manual

TABLE OF CONTENTS

3/30/10

TABLE OF CONTENTS

Vogt

TUBE-ICE

MACHINES

MHG-LR Modular Model

Page No.

1. INTRODUCTION

A Brief History Of Our Company ..................................................................................................................................1-1

Preview ...........................................................................................................................................................1-1

Important Safety Notice ..................................................................................................................................................1-2

Special Precautions To Be Observed When Charging Refrigeration Systems............................................................1-2

Safety Symbols and What They Mean ...........................................................................................................................1-3

Assembly Drawing Model MHGFL, FIGURES 1-1, 1-2, 1-3 & 1-4 ............................................................................1-4 to 1-6

2. RECEIPT OF YOUR VOGT-ICE MACHINE

Inspection ...........................................................................................................................................................2-1

Description of Machine....................................................................................................................................................2-1

Safety Tags and Labels....................................................................................................................................................2-1

Safety Valves ...........................................................................................................................................................2-1

Rated Capacity ...........................................................................................................................................................2-2

Turbo Modular Machines Unified Number Model Structure ......................................................................................2-3

3. INSTALLING YOUR VOGT-ICE MACHINE

Machine Room ...........................................................................................................................................................3-1

Lifting Procedures ...........................................................................................................................................................3-1

Modular Unit Lifting Procedure FIGURE 3-1 ..........................................................................................................3-2

Foundation Layout...........................................................................................................................................................3-2

Foundation Height- Modular Unit, FIGURE 3-2..........................................................................................................3-3

Mounting Detail- Modular Unit, FIGURE 3-3 ..........................................................................................................3-4

Piping and Drain Connections, TABLE 3-1 ..................................................................................................................3-4

Make-up Water In ...........................................................................................................................................................3-5

Water Tank Drain ...........................................................................................................................................................3-5

Water Tank Overflow......................................................................................................................................................3-5

Water Piping, FIGURE 3-4.............................................................................................................................................3-5

Wet Suction and Liquid Stop Valve................................................................................................................................3-6

Compressor Unloading ....................................................................................................................................................3-6

Safety Valves ...........................................................................................................................................................3-6

Spacing and Connection Diagram, (Flooded) FIGURE 3-5..........................................................................................3-7

Customer Piping-LR, (Flooded) FIGURE 3-6...............................................................................................................3-8

Piping Schematic (Flooded), FIGURE 3-7 .....................................................................................................................3-9

Wiring and Electrical Connection ..................................................................................................................................3-10

Typical Master Panel and Module Connection, FIGURE 3-8......................................................................................3-10

Master Panel Field Connections, Figure 3-9.................................................................................................................3-11

Master Panel Field Connections, (Detail) FIGURE 3-10 ..............................................................................................3-12

MHG-LR Service Manual

TABLE OF CONTENTS

Page No.

INSTALLING YOUR TUBE-ICE MACHINE (con’t)

Master Panel Field Ethernet Connections (Detail) Figure 3-11 ................................................................................3-13

Modular Panel Field Connections Figure 3-12...........................................................................................................3-14

Electrical Specifications, Table 3-2 .............................................................................................................................3-15

Phase Check ...........................................................................................................................................................3-15

Voltage Unbalance........................................................................................................................................................3-15

Current Unbalance ......................................................................................................................................................3-16

Screw Conveyor ...........................................................................................................................................................3-16

Startup Checklist ..........................................................................................................................................................3-18

4. HOW YOUR TUBE-ICE MACHINE WORKS

Principle of Operation .....................................................................................................................................................4-1

Freeze Period ...........................................................................................................................................................4-1

Dry Out Period ...........................................................................................................................................................4-2

Harvest Period ...........................................................................................................................................................4-2

Piping Nomenclature, (Dedicated High Side) Table 4-1................................................................................................4-2

Piping Schematic FIGURE 4-1......................................................................................................................................4-3

Water Piping Schematic, FIGURE 4-2...........................................................................................................................4-4

Typical High Side Layout FIGURE 4-3 .........................................................................................................................4-4

5. START-UP AND OPERATION

Refrigeration System Review..........................................................................................................................................5-1

Refrigerant Charge..........................................................................................................................................................5-2

Ammonia Specification By Grade, Table 5-1.................................................................................................................5-2

Special Precautions ..........................................................................................................................................................5-2

Charging From Tank Truck (dedicated high side only)................................................................................................5-2

Charging From Cylinders (dedicated high side only) ...................................................................................................5-3

Start-up Procedure .........................................................................................................................................................5-5

Thaw Gas Regulating and Suction By-pass Valve Adjustment ...................................................................................5-5

Shut-down Procedure .....................................................................................................................................................5-6

Operating Tips ...........................................................................................................................................................5-7

6. ELECTRICAL CONTROLS & THEIR FUNCTIONS

General Information ........................................................................................................................................................6-1

Diagram depicting a typical Master / Modular set up, FIGURE 6-1...........................................................................6-1

Master Panel (Door Closed), FIGURE 6-2 ....................................................................................................................6-2

Master Panel (Interior View), FIGURE 6-3 ..................................................................................................................6-2

Master Control Panel Components, Table 6-1...............................................................................................................6-2

Exterior View Modular Panel, FIGURE 6-4 .................................................................................................................6-3

Modular Panel (Interior View), FIGURE 6-5................................................................................................................6-3

Modular Control Panel Components Functions, Table 6-2 ..........................................................................................6-3

MHG-LR Service Manual

TABLE OF CONTENTS

3/30/10

iii

Page No

6. ELECTRICAL CONTROLS & THEIR FUNCTIONS (con’t)

Configuring a New System or Module .................................................................................................................................6-4

Dip Switch Settings for ECOM, Table 6-3...........................................................................................................................6-5

Modular Unit Operation .......................................................................................................................................................6-5

Function of the Switch, Table 6-4.........................................................................................................................................6-6

Failure Indicators, Table 6-5.................................................................................................................................................6-6

Master Panel Operation ........................................................................................................................................................6-7

Operator Interface Function Buttons, FIGURE 6-6 ...........................................................................................................6-7

Operator Interface Function Map, Table 6-6 ......................................................................................................................6-8

Operator Interface Item Descriptions, Table 6-7 ................................................................................................................6-9

Starting the Modular Unit.....................................................................................................................................................6-10

7. MAINTENANCE

Preventive Maintenance ..................................................................................................................................................7-1

Preventive Maintenance Form........................................................................................................................................7-2

Ice-Making Section ..........................................................................................................................................................7-3

Cleaning Procedure .........................................................................................................................................................7-3

Water Distribution System..............................................................................................................................................7-4

Water Distributors...........................................................................................................................................................7-4

Water Tank ...........................................................................................................................................................7-4

Oil Trap Draining ...........................................................................................................................................................7-5

Optional Maintenance Operations..................................................................................................................................7-5

Water Cooled Condenser Cleaning ................................................................................................................................7-5

Cooling Tower/Evaporative Condenser .........................................................................................................................7-6

Cooling Tower Maintenance Schedule, Table 7-3 .........................................................................................................7-6

Compressor (Optional) ....................................................................................................................................................7-7

Compressor Maintenance, Table 7-4..............................................................................................................................7-7

8. TROUBLESHOOTING

List Of Symptoms ...........................................................................................................................................................8-1

Machine Stopped ...........................................................................................................................................................8-2

Freeze up Due To Extended Freeze Period....................................................................................................................8-3

Freeze-Up Due To Ice Failing To Discharge..................................................................................................................8-3

Low Ice Capacity ...........................................................................................................................................................8-4

Poor Ice Quality ...........................................................................................................................................................8-5

High Discharge Pressure (Check Gage Accuracy) ........................................................................................................8-5

Low Discharge Pressure (Check Gage Accuracy) .........................................................................................................8-5

High Suction Pressure (Check Gage Accuracy) ............................................................................................................8-6

Compressor Running Unloaded During Freeze (Dedicated Compressor Only)..........................................................8-6

Compressor Oil Pressure Low (Check Gage Accuracy) ...............................................................................................8-6

Compressor Loosing Oil Excessively.............................................................................................................................8-6

High Compressor Discharge Temperature ....................................................................................................................8-7

Suction Line Frosting To Compressor ...........................................................................................................................8-7

MHG-LR Service Manual

TABLE OF CONTENTS

Page No

. SERVICE OPERATIONS

Total Cycle Time ...........................................................................................................................................................9-1

Standard Defrost Time ....................................................................................................................................................9-1

Dry Time ...........................................................................................................................................................9-1

Liquid Shut Off ...........................................................................................................................................................9-1

Manual Defrost Time.......................................................................................................................................................9-1

Extended Defrost Time....................................................................................................................................................9-1

Defrost Extend Count......................................................................................................................................................9-1

Conveyor Timer ...........................................................................................................................................................9-1

Make-Up Water Float Valve ...........................................................................................................................................9-1

Refrigerant Float Switch (23) .........................................................................................................................................9-2

Hand Expansion Valve (9)...............................................................................................................................................9-2

Solenoid Valves (18, 25)...................................................................................................................................................9-2

Control Circuit Fuse (FU1) .............................................................................................................................................9-2

Circulating Water Pump .................................................................................................................................................9-2

Pumpdown ...........................................................................................................................................................9-2

Pumpdown Procedure .....................................................................................................................................................9-3

Removal of Ammonia Refrigerant..................................................................................................................................9-3

Refrigerant Leaks ...........................................................................................................................................................9-4

Non-condensable Gases ...................................................................................................................................................9-4

Purging Non-condensable Gases.....................................................................................................................................9-4

Purging Procedure...........................................................................................................................................................9-5

Draining the Oil Trap......................................................................................................................................................9-5

Oil Trap Draining Procedure..........................................................................................................................................9-5

Removing Excess Water From Ammonia.......................................................................................................................9-6

Water Removal Procedure ..............................................................................................................................................9-6