Atlas of cases of installation problems in multi-online air conditioning engineering

Cases of installation quality problems of indoor units:

1. Installation position of indoor unit:

2. Indoor unit hoisting

3. Indoor unit protection

4. Reserved maintenance port for indoor unit installation

Cases of installation quality problems of outdoor units:

1. Outdoor unit installation:

2. Basic production of outdoor unit

Cases of refrigerant pipeline installation quality problems:

1. The copper pipe should be neat and dry

2. Use the copper pipe cutter correctly

3. Use the tube expander correctly

4. Correctly select and install divergent pipes

5. Correct use of nitrogen-filled welding

6. Standardize the construction of refrigerant pipelines

Cases of refrigerant pipeline installation quality problems:

1. Slope of drainage pipe:

2. The problem of the elbow of the drainage pipe

3. Drainage pipe lifting problem

4. Centralized drainage problem

5. Exhaust through hole problem

6. Insulation cotton protection problem

Cases of air duct installation quality problems:

1. The size of the air duct

2. Return the position of the tuyere

3. The installation of air ducts and tuyeres shall be in accordance with the decoration requirements

Cases of insulation installation quality problems:

1. Refrigerant piping heat preservation

2. Insulation of condensate pipes

3. Air duct insulation

Cases of electrical wiring quality problems:

1. Wire diameter selection:

2. Wiring requirements

3. Control line requirements

Cases of debugging and running quality problems:

1. Pipeline blowing and pressure retention

2. Vacuum drying

3, Additional refrigerant