Vogt HEC-10, Руководство по обслуживанию

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HEC-Series Service Manual
TABLE OF CONTENTS
10/23/01
iv
Page No.
Lubrication ................................ ................................ ................................ ................................ .................. 7-6
Compressor................................ ................................ ................................ ................................ ........... 7-6
Cutter Gear Reducer ................................ ................................ ................................ ............................. 7-6
Preventative Maintenance................................ ................................ ................................ ............................ 7-7
Daily Checklist ................................ ................................ ................................ ................................ ..... 7-7
Note To Manager or Owner ................................ ................................ ................................ ................. 7-7
Preventive Maintenance Program................................ ................................ ................................ ......... 7-8
8. TROUBLESHOOTING (A Checklist)
Machine Won’t Run ................................ ................................ ................................ ................................ .... 8-1
Freeze-up Due To Extended Freezing Period ................................ ................................ .............................. 8-2
Freeze-up Due To Ice Failing To Discharge ................................ ................................ ............................... 8-3
Low Ice Capacity................................ ................................ ................................ ................................ ......... 8-4
Safety Pressure Switches Stop Machine ................................ ................................ ................................ ...... 8-5
Motor Overload Protectors Stop Machine ................................ ................................ ................................ ... 8-6
9. SERVICE OPERATIONS
Adjustable Blowdown (For Clearer Ice)................................ ................................ ................................ ...... 9-1
Automatic Blowdown (Harvest Cycle)................................ ................................ ................................ ........ 9-1
Float Valve (Make-Up Water)................................ ................................ ................................ ..................... 9-1
Expansion Valve................................ ................................ ................................ ................................ .......... 9-1
Expansion Valve Adjustment Procedure & Installation ................................ ................................ .............. 9-2
Recommended Superheat Setting, TABLE 9-1 ................................ ................................ ........................... 9-2
Freezer Pressure Switches ................................ ................................ ................................ ........................... 9-3
Freezer Pressure Switch (Allen-Bradley), FIGURE 9-1 ................................ ................................ .............. 9-3
Allen Bradley Switch................................ ................................ ................................ ................................ ... 9-4
High/Low Pressure Switch ................................ ................................ ................................ .......................... 9-4
High/Low Pressure Switch, FIGURE 9-2 ................................ ................................ ................................ .... 9-5
Head Pressure ................................ ................................ ................................ ................................ .............. 9-5
Air-Cooled Units ................................ ................................ ................................ ................................ ......... 9-5
Water Regulating Valve, FIGURE 9-3 ................................ ................................ ................................ ........ 9-6
Condenser Fan Switch, FIGURE 9-4................................ ................................ ................................ ........... 9-6
Water Cooled Units ................................ ................................ ................................ ................................ ..... 9-6
Compressor Crankcase Heater................................ ................................ ................................ ..................... 9-6
Ice Bin Thermostat(s) Adjustments ................................ ................................ ................................ ............. 9-6
Ice Bin Thermostat, FIGURE 9-5................................ ................................ ................................ ................ 9-7
Thawing Timer, FIGURE 9-6................................ ................................ ................................ ...................... 9-8
Thawing Timer ................................ ................................ ................................ ................................ ............ 9-8
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