System Diagnosis
Pressure and Relationship Chart
Condition | Suction | Head Pressure | T1 Inlet | T2 Outlet | T3 Suction | Wattage | |
| Pressure | Variation from | Temperature | Temperature | Temperature | Variation from | |
| Variation | Normal | Variation from | Variation from | Variation from | Normal | |
| from Normal |
| Normal | Normal | Normal |
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Refrigerant | Increase | Increase | Warmer | Warmer | Colder | Increase | |
Overcharge | |||||||
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Refrigerant |
| Decrease or Increase |
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Decrease | See "Refrigerant | Colder | Warmer | Warmer | Decrease | ||
Shortage | |||||||
| Shortage Symptoms" |
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Partial |
| Decrease or Increase |
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Decrease | See "Restriction | Colder | Warmer | Warmer | Decrease | ||
Restriction | |||||||
| Symptoms" |
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Air in System | Near Normal | Increase | Warmer | Warmer | Warmer | Increase | |
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Low Ambient |
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Installation |
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(Reverse for | Decrease | Decrease | Colder | Warmer | Warmer | Decrease | |
High Ambient |
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Installation) |
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Additional | Increase | Increase | Warmer | Warmer | Warmer | Increase | |
Heat Load | |||||||
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Inefficient | Increase | Normal or Decrease | Warmer or Colder | Warmer | Warmer | Decrease | |
Compressor | |||||||
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RS1200001 | 10 | November 1996 |