Part Number Preliminary 6/11
215
QuietQube® Models - Analyzing Freeze Cycle
Suction Line Temperature
Suction line temperature alone cannot diagnose an ice
machine. However, comparing this temperature during
the freeze cycle, along with using Manitowoc’s
Symptom #2 - Refrigeration System Operational
Analysis Table, can help diagnose an ice machine
malfunction.
The actual temperature of the suction line varies by
model, and will change throughout the freeze cycle.
This makes documenting the “normal” suction line
temperature difficult. The key to the diagnosis is
observing the compressor suction line temperature
during the last three minutes of the freeze cycle.
1. Use a quality temperature meter, capable of
taking temperature readings on curved copper
lines.
2. Attach the temperature meter thermocouple to the
copper suction line within 6” of the shut-off valves.
3. Monitor the suction line temperature during the
last three minutes of the freeze cycle and record
the low event.
4. Use this with other information gathered on the
Refrigeration Component Analysis Chart to
determine the ice machine malfunction.
5. Verify refrigerant amount is correct by weight
when recovering refrigerant and replacing a TXV.
Grossly overcharged QuietQube® ice machine in
ambient temperatures below 70°F will have a
suction line temperature below 10°F.
Important
Do not simply insert the sensing device under the
insulation. It must be attached to and reading the
actual temperature of the copper line. Infared
thermometers are not recommended for this
procedure.
Summary of Contents for ICVD3095
Page 2: ......
Page 12: ...12 Part Number Preliminary 6 11 This Page Intentionally Left Blank ...
Page 25: ...Part Number Preliminary 6 11 25 This Page Intentionally Left Blank ...
Page 26: ...26 Part Number Preliminary 6 11 This Page Intentionally Left Blank ...
Page 36: ...36 Part Number Preliminary 6 11 This Page Intentionally Left Blank ...
Page 72: ...72 Part Number Preliminary 6 11 This Page Intentionally Left Blank ...
Page 101: ...Part Number Preliminary 6 11 101 This Page Intentionally Left Blank ...
Page 132: ...132 Part Number Preliminary 6 11 This Page Intentionally Left Blank ...
Page 137: ...Part Number Preliminary 6 11 137 This Page Intentionally Left Blank ...
Page 138: ...138 Part Number Preliminary 6 11 This Page Intentionally Left Blank ...
Page 187: ...Part Number Preliminary 6 11 187 This Page Intentionally Left Blank ...
Page 188: ...188 Part Number Preliminary 6 11 This Page Intentionally Left Blank ...
Page 225: ...Part Number Preliminary 6 11 225 This Page Intentionally Left Blank ...
Page 226: ...226 Part Number Preliminary 6 11 This Page Intentionally Left Blank ...
Page 262: ...262 Part Number Preliminary 6 11 This Page Intentionally Left Blank ...
Page 283: ...Part Number Preliminary 6 11 283 ACCESS REMOTE RECOVERY EVACUATION CONNECTIONS ...
Page 291: ...Part Number Preliminary 6 11 291 This Page Intentionally Left Blank ...
Page 298: ...298 Part Number Preliminary 6 11 USING PINCH OFF TOOL ...
Page 303: ...Part Number Preliminary 6 11 303 This Page Intentionally Left Blank ...
Page 304: ...304 Part Number Preliminary 6 11 ...
Page 305: ...Part Number Preliminary 6 11 305 This Page Intentionally Left Blank ...
Page 306: ...306 Part Number Preliminary 6 11 This Page Intentionally Left Blank ...
Page 337: ...Part Number Preliminary 6 11 337 I0500 Remote Air cooled 1Ph ...
Page 339: ...Part Number Preliminary 6 11 339 I0600 I0850 I1000 Remote Condenser Air cooled 1 3 Ph ...
Page 341: ...Part Number Preliminary 6 11 341 IB0690C IB0890C IB1090C QuietQube Remote Air cooled 1 3 Ph ...
Page 342: ...342 Part Number Preliminary 6 11 I1400 I1800 Self Contained Air Water cooled 1 3 Ph ...
Page 343: ...Part Number Preliminary 6 11 343 I1400 I1800 Remote Air cooled 1 3 Ph ...
Page 349: ......