HEC-Series Service Manual
TABLE OF CONTENTS
10/23/01
iii
Page No.
PLC Features & Functions................................ ................................ ................................ ........................... 6-5
PLC Control Sequence Flow Chart, FIGURE 6-3................................ ................................ ................ 6-6
PLC Mode Identification & Operation ................................ ................................ ................................ . 6-7
PLC Start-Up Mode................................ ................................ ................................ .............................. 6-7
PLC Stand-By Mode ................................ ................................ ................................ ............................ 6-8
PLC Freeze Mode................................ ................................ ................................ ................................ . 6-8
PLC Harvest Mode ................................ ................................ ................................ ............................... 6-8
PLC Partial Pump-Down Mode................................ ................................ ................................ ............ 6-9
PLC Total Pump-Down Mode................................ ................................ ................................ .............. 6-9
PLC Clean Mode ................................ ................................ ................................ ................................ .. 6-10
PLC Troubleshoot Mode ................................ ................................ ................................ ...................... 6-10
PLC Fault Identity, TABLE 6-2 ................................ ................................ ................................ ........... 6-11
PLC Display, FIGURE 6-4................................ ................................ ................................ ................... 6-12
PLC Inputs & Outputs, TABLE 6-3 ................................ ................................ ................................ ..... 6-12
PLC Modes, FIGURE 6-5 ................................ ................................ ................................ .................... 6-13
Machine Off (Dual Ice), FIGURE 6-6................................ ................................ ................................ ......... 6-14
Machine Off (Single Ice), FIGURE 6-6A................................ ................................ ................................ .... 6-15
Freeze Cycle (Dual Ice), FIGURE 6-7 ................................ ................................ ................................ ........ 6-16
Freeze Cycle (Single Ice), FIGURE 6-7A ................................ ................................ ................................ ... 6-17
Harvest Cycle (Dual Ice), FIGURE 6-8................................ ................................ ................................ ....... 6-18
Harvest Cycle (Single Ice), FIGURE 6-8A ................................ ................................ ................................ . 6-19
Clean Cycle (Dual Ice), FIGURE 6-9................................ ................................ ................................ .......... 6-20
Clean Cycle (Single Ice), FIGURE 6-9A................................ ................................ ................................ ..... 6-21
7. MAINTENANCE
Ice-making Section ................................ ................................ ................................ ................................ ...... 7-1
Cleaning Procedure ................................ ................................ ................................ ................................ ..... 7-1
Water Distributors ................................ ................................ ................................ ................................ ....... 7-2
Water Tank ................................ ................................ ................................ ................................ .................. 7-2
Drip Pan ................................ ................................ ................................ ................................ .................... 7-2
Water Cooled Condensers ................................ ................................ ................................ ........................... 7-2
Draining ................................ ................................ ................................ ................................ .................... 7-3
Chemical Cleaning................................ ................................ ................................ ................................ ....... 7-4
Mechanical Cleaning ................................ ................................ ................................ ................................ ... 7-5
Part I. ................................ ................................ ................................ ................................ .................... 7-5
Part II................................ ................................ ................................ ................................ .................... 7-5
Air-Cooled Condenser Cleaning................................ ................................ ................................ .................. 7-5
Summary of Contents for HEC-10
Page 1: ...HEC SERVICE MANUAL ...
Page 95: ...HEC Series Service Manual SERVICE OPERATIONS 10 21 01 9 13 FIGURE 9 9 Cutter Water Tank Parts ...
Page 96: ...HEC Series Service Manual SERVICE OPERATIONS 10 21 01 9 14 FIGURE 9 10 Cutter Drive Parts ...
Page 97: ...HEC Series Service Manual SERVICE OPERATIONS 10 21 01 9 15 FIGURE 9 11 Cutter Parts ...
Page 106: ...HEC Series Service Manual MODEL NUMBER STRUCTURE 10 21 01 10 1 10 Model Number Structure ...
