Service Manual
Table Of Contents
- Safety Notices
- Definitions
- General Information
- Installation
- Stacking Two Ice Machines on a Single Storage Bin
- Location of Ice Machine
- Clearance Requirements
- Dual Evaporator Model Installation on a Manitowoc Bin
- Ice Machine on a Dispenser Installation
- Water Supply and Drains
- Lineset Applications
- QuietQube® Remote Condensing Unit
- Additional Refrigerant Charge For 51' to 100' Line Sets
- Maintenance
- Operation
- Menu Navigation
- Component Check Procedures
- Control Board, Display And Touchscreen
- Operating an ice machine without a Touchscreen
- Control Board Relay Test
- Programming A Replacement Control Board
- USB Flash Drive Specifications and Formatting
- Exporting Data to a Flash Drive
- Upgrading Firmware with a Flash Drive
- Main Fuse
- Bin Switch
- Water Level Control Circuitry
- Ice Thickness Probe (Initiates Harvest)
- Bin Level Probe
- Thermistors
- High Pressure Cutout (HPCO) Control
- Low Pressure Cutout (LPCO) Control
- Compressor Time Delay
- Fan Cycle Control
- Harvest Assist Air Pump
- Compressor Electrical Diagnostics
- Diagnosing Start Components
- Refrigeration Components
- Recovery/Evacuation/Charging Procedures QuietQube® Models
- System Contamination Clean-Up
- Total System Refrigerant Charge QuietQube® CVD Models
- Control Board, Display And Touchscreen
- Charts
- Diagrams
88 Part Number: 000015431 Rev 02 6/20
THAW CYCLE
When the damper/curtain does not open during the 7
minute harvest cycle the following ice thaw cycle occurs:
• The compressor, harvest solenoid valve and dump
valve de-energize.
The water pump remains energized and the water inlet
valve energizes until water touches the high water
level probe.
• Water is circulated, dumped and refilled to the high
water level probe for 3 minutes.
Model 1200 or smaller:
Circulate 165 seconds, dump 45 seconds
Model 1400 and larger:
Circulate 240 seconds, dump 120 seconds
• At the end of the thaw cycle the ice machine will start
another freeze cycle (approximately 1 - 1.75 hour).
Curtain Operation In Water Assist Harvest
• Open & close damper = Continue Thaw Cycle
• Open damper 30 seconds = Full Bin Shutoff
Use the keypad and turn the ice machine off and then on
to terminate the cycle. Disconnecting and reconnecting
power to end the cycle will result in the ice machine
restarting in a harvest cycle.