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 7/10 203
S450A
All Self-Contained Air-cooled Models After Serial Number
110670157
Characteristics may vary depending on operating conditions.
CYCLE TIMES
Freeze Time + Harvest Time = Total Cycle Time
24 HOUR ICE PRODUCTION
OPERATING PRESSURES
Air Temp.
Entering
Condenser
°F/°C
Freeze Time
Harvest
Time
1
1 Times in minutes
Water Temperature °F/°C
50/10 70/21 90/32
70/21 9.4-10.0 10.2-10.8 11.1-11.8
1-2.5
80/27 9.9-10.6 10.7-11.5 11.7-12.5
90/32 10.4-11.1 11.4-12.1 12.5-13.3
Air Temp. Entering
Condenser °F/°C
Water Temperature °F/°C
1
1 Based on average ice slab weight of 3.4-3.6 lbs.
50/10 70/21 90/32
70/21 450 420 390
80/27 430 400 370
90/32 410 380 350
Air Temp
Entering
Condenser
°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
50/10 195-255 50-30 125-185 70-90
70/21 195-270 60-30 135-190 80-115
80/27 220-285 62-32 135-195 80-115
90/32 250-320 70-34 175-195 85-115
100/38 290-390 75-35 190-215 115-140
110/43 320-400 80-37 225-250 130-170