Vogt P18AL TUBE-ICE, Service Manual

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P18AL Service Manual
TABLE OF CONTENTS
ii
Startup Checklist............................................................................................................................................................3-11
4. HOW YOUR TUBE-ICE MACHINE WORKS
Principle of Operation....................................................................................................................................................4-1
Freeze Period .................................................................................................................................................................4-2
Harvest Period ...............................................................................................................................................................4-2
Piping Nomenclature, Table 4-1 ....................................................................................................................................4-2
Water Cooled Piping Schematic, FIGURE 4-1..............................................................................................................4-3
Air-Cooled Piping Schematic, FIGURE 4-2..................................................................................................................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
Charging Operating Characteristics ..............................................................................................................................5-4
Start-up Procedure ........................................................................................................................................................5-5
Thaw Gas Regulating and Suction Gas Regulating Valve Adjustment ........................................................................5-6
Shut-down Procedure ....................................................................................................................................................5-6
Operating Tips ..............................................................................................................................................................5-7
6. ELECTRICAL CONTROLS & THEIR FUNCTIONS
General Information.......................................................................................................................................................6-1
Control Panel (Door Closed), FIGURE 6-1...................................................................................................................6-2
Control Panel Components and Part Numbers (External), TABLE 6-1.........................................................................6-2
Control Panel (Door Opened), FIGURE 6-2..................................................................................................................6-3
Control Panel Components and Part Numbers (Internal), TABLE 6-2..........................................................................6-3
Description of Control Panel Component Function, TABLE 6-3..................................................................................6-4
Electrical Schematic All Voltages 50-60 Hz, FIGURE 6-3...........................................................................................6-5
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, TABLE 7-1 ..............................................................................................................................7-4
Average Hole Size in Tube-Ice
®
, TABLE 7-2 ........................................................................................................7-4
Water Tank ..............................................................................................................................................................7-4
Freezer Cover ..........................................................................................................................................................7-4
Other Maintenance Operations ......................................................................................................................................7-5
Cutter Gear Reducer ................................................................................................................................................7-5
Page No.
Oil Trap Draining ....................................................................................................................................................7-5