Vogt P18FXT - Page 8

10TA Service Manual
TABLE OF CONTENTS
iv
Page No.
9. SERVICE OPERATIONS (cont.)
Coresense Protection ..................................................................................................................................................... 9-10
Oil Separator, FIGURE 9-8 ........................................................................................................................................... 9-11
Compressor Crankcase Heater ...................................................................................................................................... 9-11
Control Circuit Protection .............................................................................................................................................. 9-11
Thawing Timer, FIGURE 9-9A ..................................................................................................................................... 9-12
Thawing Timer .............................................................................................................................................................. 9-12
Pump Down ................................................................................................................................................................... 9-13
Removal Of Refrigerant From Machine ........................................................................................................................ 9-13
Refrigerant Leaks........................................................................................................................................................... 9-14
Non-Condensable Gases ................................................................................................................................................ 9-14
Compressor Motor Burnout ........................................................................................................................................... 9-14
Solenoid Valves ............................................................................................................................................................. 9-15
Thawing Gas Solenoid Valve ( “D” Valve), FIGURE 9-10A ........................................................................................ 9-15
Liquid Feed Solenoid Valve ( “A1” & “A2” Valve), FIGURE 9-10B .......................................................................... 9-15
Capacity Control Valve (Compressor Unloader) ........................................................................................................... 9-16
Copeland Compressor Unloader Valve, FIGURE 9-11 ................................................................................................. 9-16
Loaded Operation (Freeze Period) ................................................................................................................................. 9-16
Unloaded Operation (During Thaw Only) ..................................................................................................................... 9-16
Circulating Water Pump Motor, FIGURE 9-12 ............................................................................................................. 9-17
Cutter Gear Reducer, FIGURE 9-13 .............................................................................................................................. 9-17
Component Removal and Replacement Operations ....................................................................................................... 9-18
Cutter Gear Reducer ...................................................................................................................................................... 9-18
Water Tank Removal ..................................................................................................................................................... 9-19
Cutter & Bearing Removal/Installation ......................................................................................................................... 9-19
Cutter Assembly, FIGURE 9-14 .................................................................................................................................... 9-20
Cutter Parts (Cylinder Ice), FIGURE 9-15 .................................................................................................................... 9-20
Cutter Drive Parts, FIGURE 9-16 .................................................................................................................................. 9-21
Crushed Ice Production, FIGURE 9-17 ......................................................................................................................... 9-22
Defrost Pressure Switch - DPS (R404A Machines only) ............................................................................................... 9-23
Pressure Relief Valve ................................................................................................................................................... 9-23
Technical Service Bulletin (Water quality) ................................................................................................................... 9-24
10. OPTIONS AND ACCESSORIES
Power Monitor, FIGURE 10-1 ..................................................................................................................................... 10-1
Power Monitor, Parameters, TABLE 10-1 ................................................................................................................... 10-2
PLC, Programmable Logic Controller .......................................................................................................................... 10-4
11. TABLES AND CHARTS
P18FXT Ratings (60 Hz.), TABLE 11-1 ....................................................................................................................... 11-1
P18FXT Ratings (50 Hz.), TABLE 11-2 ....................................................................................................................... 11-2
P18FXT Capacity Ratings, TABLE 11-3 ...................................................................................................................... 11-3
Condenser Water Usage, TABLE 11-4 .......................................................................................................................... 11-4
Make-up Water Usage (gpm), TABLE 11-5 .................................................................................................................. 11-4