in HVAC Repairs
Scope of Investigation Works:
Circuit 2 is tripping on low oil level due to a lack of refrigeration oil in the compressor housing. Currently the oil level float valve has prevented compressor failure. This fault could be caused by multiple faults and we would need to investigate the circuit further.
Works Carried Out:
- Charged the system with additional oil to run the circuit and remove the alarm code.
- Analysed the system pressure to ascertain the reason for oil loss.
- After investigation found oil around the discharge pipe.
- Sprayed with leak spray and found its fractured on bend leaving the compressor.
- Removed remaining refrigerant from system.
- Un brazed and brazed new 5/8 short 90 bend and a new section of pipe work.
- Carried out pressure leak test.
- Re-charged with refrigerant.
- Unit now working ok.