Service Manual
Table Of Contents
- Safety Notices
- Definitions
- General Information
- Installation
- Maintenance
- Operation
- Troubleshooting
- Troubleshooting
- Troubleshooting By Symptom
- Reset To Factory Defaults
- Symptom #1 - Ice Machine Will Not Run
- #2 - Low Production, Long Freeze Cycle
- Symptom #2 - Freeze Cycle Refrigeration System Operational Analysis Tables
- Symptom #3 & #4 - Harvest Problems Self‑contained Air, Water & Remote Condenser Models
- Symptom #3 - Self-Contained Air or Water-cooled
- Symptom #3 - Remote Condenser
- Symptom #4 - Self-Contained Air, Water-Cooled or Remote
- Component Check Procedures
- Electrical Components
- Control Board, Display And 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
- Fan Cycle Control
- Harvest Assist Air Pump
- Compressor Electrical Diagnostics
- Diagnosing Start Components
- Refrigeration Components
- Refrigerant Recovery/Evacuation
- System Contamination Clean-Up
- Liquid Line Filter-Driers
- Replacing Pressure Controls Without Removing Refrigerant Charge
- Total System Refrigerant Charge
- Electrical Components
- Charts
- Diagrams
- Wiring Diagrams
- Wiring Diagram Legend
- IF0300/IT0420/IT0450/IT0500/IT0620/IT0750 1ph Air/Water
- IT0500/IT1200 - 1ph Remote Air-Cooled
- IF0600/IF0900/IT0900/IT1200 - 1ph Air/Water
- IF0600/IF0900/IT0900/IT1200 - 3ph Air/Water
- IT1500/IT1900 - 1ph Air/Water
- IT1500/IT1900 - 3 ph Air/Water
- IF0500/IF0600/IF0900/IT1200/IF1500 - 1ph Remote
- IF0500/IF0600/IF0900/IT1200/IF1500 - 3ph Remote Condenser
- Electronic Control Board
- Refrigeration Tubing Schematics
- Wiring Diagrams
184 Part Number: 000015430 Rev 02 5/20
Self-Contained Charging Procedures
Notice
The charge is critical on all Manitowoc ice machines. Use
a scale to ensure the proper charge is installed.
1. Be sure the ice machine is off.
2. Isolate the vacuum pump valve, low side and high
side access valves from the refrigeration system. The
refrigerant charging access valve remains open.
3. Open the refrigerant cylinder and add the proper
refrigerant charge (shown on nameplate) through the
liquid line drier.
,
Caution
Damage may occur when charging liquid into the front
discharge line access port.
Manitowoc replacement driers have a Schrader valve
built into the inlet of the drier. Filter driers without an
access port must be replaced with the current OEM part
before recharging the ice machine. All Liquid refrigerant
must be added through the liquid line drier access port.
4. Let the system “settle” for 2 to 3 minutes.
5. Isolate the refrigerant cylinder/charging hose from
the liquid line drier.
6. Press the On/Off button.
NOTE: Manifold gauge set must be removed properly to
ensure that no refrigerant contamination or loss occurs.