Service manual

HEC-Series Service Manual
TABLE OF CONTENTS
10/23/01
ii
Page No.
Condenser Field Piping, FIGURE 3-7......................................................................................................... 3-11
Equivalent Feet of Fittings Due to Friction, TABLE 3-4 ............................................................................ 3-12
Minimum Traps For Discharge Lines, FIGURE 3-8 ................................................................................... 3-12
Condenser Piping, FIGURE 3-9.................................................................................................................. 3-13
Wiring For DD-41 & DD-61, FIGURE 3-10 .............................................................................................. 3-14
Wiring For DD-101 & DD-131, FIGURE 3-11 .......................................................................................... 3-14
Air-Cooled Condenser Enclosure, FIGURE 3-12........................................................................................ 3-15
Field Attachment Air-Cooled Condenser Refrigerant Tubing, FIGURE 3-13............................................ 3-16
Ice Bin Thermostat Bulb Installation........................................................................................................... 3-17
Location of Thermostat Bulbs In Ice Storage Bin, FIGURE 3-14............................................................... 3-17
Wiring For Single Thermostat Operation, FIGURE 3-15............................................................................ 3-18
Installation Review: A Checklist................................................................................................................ 3-19
4. HOW YOUR TUBE-ICE
®
MACHINE WORKS
Principle of Operation ................................................................................................................................. 4-1
Piping Diagram With Reference Numbers, FIGURE 4-1............................................................................ 4-2
How Ice Is Stored
Dual Ice .................................................................................................................................................... 4-3
Single Ice .................................................................................................................................................... 4-4
Ice Bin Capacity .......................................................................................................................................... 4-4
Refrigeration System................................................................................................................................... 4-5
5. INITIAL START-UP AND OPERATION
Start-up Checklist........................................................................................................................................ 5-1
Solenoid Valve (Liquid Line), FIGURE 5-1 ............................................................................................... 5-2
Refrigerant Charge ...................................................................................................................................... 5-3
Total Pump Down Mode ............................................................................................................................ 5-3
Piping Schematic Air-Cooled, FIGURE 5-2................................................................................................ 5-5
Piping Schematic Water Cooled, FIGURE 5-3 ........................................................................................... 5-6
6. ELECTRICAL CONTROLS & THEIR FUNCTIONS
Control Panel, FIGURE 6-1 ........................................................................................................................ 6-1
Description of Control Panel Parts .............................................................................................................. 6-2
Switch Box, FIGURE 6-2............................................................................................................................ 6-3
Description of Switch Box Parts.................................................................................................................. 6-4