Scotsman C1448R Manual do Utilizador Página 65
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Purge valve
1. Test using the controller’s indicator lights. Shut unit off by holding the Off button for 3
seconds. Wait four minutes. Push and release the On button, observe the Purge Valve
indicator light. As the unit drains the reservoir, the purge valve will be powered. When it gets
power, the indicator light will be ON. If the purge valve does not open to drain the reservoir
when its indicator light is on, do a voltage check. Shut the unit down by holding the Off button
in for 3 seconds. Unplug the harness connection from the purge valve. Wait four minutes. Push
and release the On button to restart the machine. As the unit drains the reservoir, the purge
valve connection should receive full voltage. If it does, the purge valve should be replaced. If
there is no voltage, check voltage from the controller to ground. The purge valve pin is 3 (dump
valve on wiring diagram). If there is voltage from that pin to ground, but low voltage at the valve
harness connection, the harness has a broken wire or poor connection and must be replaced.
If the voltage to ground is low, the controller should be replaced.
Note: The coil of this valve is internally rectified, and will normally show infinite resistance when tested
with an ohmmeter.
September 2006 Page 65
Test Procedures - Loads
This light will be ON
when the Purge Valve is
in operation.
- Introduction 1
- September 2006 Page 1 1
- Model Number Description 2
- Plumbing Requirements 5
- Electrical 6
- Water purge setting 8
- General Installation - Remote 10
- Adjustments 20
- Overall System Type: 21
- Electrical Components: 21
- Controller Information 22
- How It Works - Air Cooled 24
- How It Works - Water Cooled 25
- How It Works - Remote 26
- Remote Schematics 31
- Electrical Component Details 32
- Refrigeration 35
- Water System 36
- Control Operation 37
- Control Safeties 38
- Restarts 39
- Diagnostics – Air Cooled 42
- Diagnostics - Water Cooled 47
- September 2006 Page 51 51
- Test Procedures - Sensors 57
- Ice Thickness Sensor 58
- Water Level Sensor 59
- Temperature Sensors 60
- Test Procedures - Loads 61
- Compressor Electrical Chart 62
- Technical Information 71
- Controller Differences 73
- Thermistor Values 74
- Performance Data 75
- Performance Data - Remotes 85
- Wiring Diagrams 93
- September 2009 Page 96 96
- September 2009 Page 98 98
- USE COPPER CONDUCTORS ONLY 100
- Wiring Diagram 102
- Repair Procedures 104
- Harvest Assist Solenoid 105
- Evaporator 112
- Compressor 114
- Thermostatic Expansion Valve 116
- 02-4293-01 Rev A 120
- Remote SmartLock (KSL) 121
- C0630R-6, C0830R-6, C1030R-6 126
- September 2009 126
- C0830R-63, C1030R-63 127
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