Introduction
The design of this cuber is the result of years of
experience and testing. Standard features include
a removable bin for service and an on-off switch at
the front of the cabinet for easy operational control.
Note any Caution or Warning symbols when they
appear on the product or in this manual. They
indicate potential hazards.
May 2008
Page 1
CU1526, CU2026, CU3030
Service Manual
Table of Contents
Installation: Product Specifications . . . . . Page 2
Model Number Description. . . . . . . . . . Page 3
Water . . . . . . . . . . . . . . . . . . . . . Page 4
CU1526 and CU2026 Cabinet Layout . . . . Page 5
CU3030 Cabinet Layout . . . . . . . . . . . Page 6
Bin Removal . . . . . . . . . . . . . . . . . Page 7
Plumbing Requirements . . . . . . . . . . . Page 8
Electrical . . . . . . . . . . . . . . . . . . . Page 9
Adjustments . . . . . . . . . . . . . . . . . Page 10
Use and Operation . . . . . . . . . . . . . . Page 11
Control Switches . . . . . . . . . . . . . . . Page 12
Cuber System Information . . . . . . . . . . Page 13
Controller Information . . . . . . . . . . . . Page 14
Component Indicator Light Table . . . . . . Page 15
How It Works - Air Cooled . . . . . . . . . . Page 16
How It Works - Water Cooled . . . . . . . . Page 17
Electrical Sequence - Air or Water Cooled . Page 18
Electrical Component Details . . . . . . . . Page 20
Electrical Component Details - continued . . Page 21
Refrigeration & Water Systems . . . . . . . Page 22
Control Operation . . . . . . . . . . . . . . Page 23
Control Safeties . . . . . . . . . . . . . . . Page 24
Restarts . . . . . . . . . . . . . . . . . . . Page 25
Control Button Use . . . . . . . . . . . . . . Page 26
Test Mode: . . . . . . . . . . . . . . . . . . Page 27
Service Diagnosis . . . . . . . . . . . . . . Page 28
Service Diagnosis . . . . . . . . . . . . . . Page 29
Service Diagnosis . . . . . . . . . . . . . . Page 30
Service Diagnosis - Low ice making capacity - air cooled
. . . . . . . . . . . . . . . . . . . . . . . . Page 31
Cleaning, Sanitation and Maintenance . . . Page 32
Test Procedures - Sensors . . . . . . . . . Page 34
Sensor Testing . . . . . . . . . . . . . . . . Page 35
Thermistors . . . . . . . . . . . . . . . . . Page 36
Test Procedures - Loads . . . . . . . . . . . Page 37
Test Procedures . . . . . . . . . . . . . . . Page 38
Technical Information . . . . . . . . . . . . Page 41
Performance Data, CU1526 . . . . . . . . . Page 42
Performance Data, CU2026 . . . . . . . . . Page 43
Performance Data, CU3030 . . . . . . . . . Page 44
Wiring Diagram, CU1526 and CU2026 60 Hz up to
Serial Number 12021320013437 . . . . . . Page 45
Wiring Diagram, CU1526 and CU2026 60 Hz after Serial
Number 12021320013437 . . . . . . . . . . Page 46
Wiring Diagram, CU3030 60 Hz up to Serial Number
TBD . . . . . . . . . . . . . . . . . . . . . Page 47
Wiring Diagram, CU3030 60 Hz after Serial Number
TBD . . . . . . . . . . . . . . . . . . . . . Page 48
Wiring Diagram, CU1526 and CU2026 50 Hz up to
Serial Number 12021320013437 . . . . . . Page 49
Wiring Diagram, CU1526 and CU2026 50 Hz after Serial
Number 12021320013437 . . . . . . . . . . Page 50
Wiring Diagram, CU3030 50 Hz up to Serial Number tbd
Page 51
Wiring Diagram, CU3030 50 Hz after Serial Number tbd
Page 52
Removal and Replacement . . . . . . . . . Page 53
Refrigeration Removal and Replacement Procedures
. . . . . . . . . . . . . . . . . . . . . . . . Page 59
Refrigeration Removal and Replacement Procedures
. . . . . . . . . . . . . . . . . . . . . . . . Page 62