Specifications
Table Of Contents
- General Information
- Installation
- Component Identification
- Maintenance
- Sequence of Operation
- Troubleshooting
- Safety Limits
- Control Board Testing
- Troubleshooting By Symptom
- Symptom #4
- Symptom #1 Ice Machine will not run
- Compressor Electrical Diagnostics
- Symptom #2 Low Production, Long Freeze
- Symptom #2 - Freeze Cycle Refrigeration System Operational Analysis Tables
- Freeze Cycle Refrigeration System Operational Analysis Table Procedures
- Before Beginning Service
- Ice Production Check
- Installation/Visual Inspection Checklist
- Water System Checklist
- Ice Formation Pattern
- Analyzing Discharge Pressure in the Freeze Cycle
- Analyzing Suction Pressure
- Single Expansion Valve Ice Machines Comparing Evaporator Inlet and Outlet Temperatures
- Multiple Expansion Valve Ice Machines Comparing Evaporator Inlet and Outlet Temperatures
- Harvest Valve Analysis
- Discharge Line Temperature Analysis
- Water Regulating Valve
- Final Analysis
- Harvest Problems
- Component Check Procedures
- Electrical Components
- Compressor Electrical Diagnostics
- Refrigeration Components
- Refrigerant Recovery/Evacuation
- System Contamination Clean-Up
- Specifications
- Charts
- Diagrams
- Wiring Diagrams
- Wiring Diagram Legend
- Wiring Diagrams Before Energy Efficient & EnergyStar Machines
- S320 Self Contained - 1 Phase
- S300/S420/S450/ S500 (after serial number 110074051) - Self Contained - 1 Phase
- S500 (before serial number 110074051) S600/S850/S1000/S1200- Self Contained- 1 Phase
- S850/S1000/S1200 - Self Contained - 3 Phase
- S500 Danfoss Compressor (after serial number 110074051) - Remote - 1 Phase
- S500 (before serial number 110074051)/ S600/S850/S1000/S1200 - Remote - 1 Phase
- S850/S1000/S1200 - Remote - 3 Phase
- S1400/S1600/S1800 - Self-Contained - 1 Phase
- S1400/S1600/S1800 - Self-Contained - 3 Phase
- S1400/S1600/S1800 - Remote - 1 Phase
- S1400/S1600/S1800 - Remote - 3 Phase
- Wiring Diagrams for Energy Efficient & EnergyStar Machines
- S300/S420/S450/S500 Self-Contained - 1 Phase
- S600/S850/S1000/S1200 Self-Contained - 1 Phase
- S850/S1000/S1200 Self-Contained - 3 Phase
- S1400/S1800 Self-Contained - 1 Phase
- S1400/S1800 Self-Contained - 3 Phase
- S3300 Water-Cooled - 3 phase
- S500 Remote - 1 Phase
- S600/S850/S1000/S1200 Remote - 1 Phase
- S850/S1000/S1200 Remote - 3 Phase
- S1400/S1800 Remote - 1 Phase
- S1400/S1800 Remote - 3 Phase
- Electronic Control Board
- Refrigeration Tubing Schematics
- Wiring Diagrams

Part Number 80-1479-3 7/10 221
S850W
All Self-Contained Water-Cooled Models Before Serial
Number 110683282
Characteristics may vary depending on operating conditions.
CYCLE TIMES
Freeze Time + Harvest Time = Total Cycle Time
24 HOUR ICE PRODUCTION
CONDENSER WATER CONSUMPTION
OPERATING PRESSURES
Air Temp.
Around Ice
Machine °F/°C
Freeze Time
Harvest
Time
1
1 Times in minutes
Water Temperature °F/°C
50/10 70/21 90/32
70/21 7.9-9.1 8.7-10.1 9.8-11.3
1-2.5
80/27 8.0-9.3 8.9-10.2 10.0-11.5
90/32 8.1-9.4 9.0-10.3 10.2-11.7
100/38 8.2-9.5 9.1-10.5 10.3-11.9
Air Temp. Around Ice
Machine °F/°C
Water Temperature °F/°C
1
1 Based on average ice slab weight of 5.75 - 6.50 lb.
50/10 70/21 90/32
70/21 880 810 730
80/27 870 800 720
90/32 860 790 710
100/38 850 780 700
Air Temp. Around Ice
Machine 90°F/32°C
Water Temperature °F/°C
1
1 Water regulating valve set to maintain 240 PSIG discharge pressure
50/10 70/21 90/32
Gal/24 hours 690 1420 5200
Air Temp.
Around Ice
Machine
°F/°C
Freeze Cycle Harvest Cycle
Discharge
Pressure
PSIG
Suction
Pressure
PSIG
Discharge
Pressure
PSIG
Suction
Pressure
PSIG
1
1 Suction pressure drops gradually throughout the freeze cycle
50/10
235-245 46-28 150-160 75-90
70/21 235-245 46-28 150-160 75-90
80/27 235-245 50-30 155-175 80-95
90/32 235-270 60-30 155-185 85-105
100/38 240-275 60-30 165-185 90-110
110/43 245-280 60-30 175-190 95-115