Service Manual
Table Of Contents
- Specifications
- Cabinet Layout
- Air flow
- Water Quality
- Door Covering
- Door Panel Attachment
- Custom Panel
- Door swing change
- Installation: Water & Drain
- Gravity Drain
- Electrical
- Cube Size Adjustment
- Harvest Time Adjustment
- Control Settings
- Use
- How to clean the condenser and winterize
- How to remove scale from the ice making system
- System Information
- Water System
- Components
- Controller
- Performance Information
- Refrigeration System
- Thermistor Values
- Service Diagnosis
- Service Diagnosis
- Removal and Repair
- Removal and Repair
- Removal and Repair - Cabinet Removal
- Refrigeration Service
SCCG50 & SCCP50
Service Manual
January 2012
Page 32
Refrigeration Service
This ice machine use R-134a type refrigerant.
There are specic rules for handling that
refrigerant.
To check for system pressures, add a eld supplied
clamp-on type service valve as a temporary means
of system access. After diagnosis and before nal
repair, replace the clamp-on type valve with valves
that are brazed onto the process tubes of the
system.
Use a low ow of dry nitrogen when brazing on the
system.
Install a new lter drier when replacing a
refrigeration component or after a refrigerant leak
repair.
Evacuate the system to at least 300 microns and
use a micron gauge to measure the evacuation
level.
Weigh in the nameplate charge. The machine is
critically charged and a partial ounce mis-charge
will affect performance.
Membrane Switch
Unplug and check connector pins (left side from
front is pin 1), read about 10 ohms when activating
the button, and OL when not pressing the button:
Pin 2-3 On/Off Switch; 4-3 Clean Reset Switch
Bin Thermostat Altitude Adjustment Screw
Altitude
Degrees Rotation to Turn
Adjustment Screw
1000 11 CW
2000 31 CW
3000 52 CW
4000 72 CW
5000 92 CW
6000 111 CW
7000 128 CW