Proper Air Compressor Installation: Key Steps to Ensure Efficiency and Longevity

Proper installation of air compressors is very important. Incorrect installation can lead to operational issues, reduce the compressor's lifespan, and increase maintenance and repair costs.

1. Choosing a location for the air compressor room:

  1. The compressor room should be in a cool, clean, and well-ventilated space, with the environment temperature between 0°C and 40°C.
  2. The room should have lifting equipment like cranes or forklifts for maintenance access.
  3. Avoid outdoor installation to protect the compressor from rain, direct sunlight, and excess dust.
  4. Ensure the room is not too small and poorly ventilated to prevent high exhaust temperatures.
  5. Avoid dusty environments, especially near sandblasting equipment, to prevent wear.
  6. Keep the compressor away from areas with flammable gases, corrosive chemicals, or high humidity to avoid explosions or rust.

2. Layout of the compressor room and compressor placement:

  1. Install an air tank after the compressor with a capacity 20% greater than the compressor’s air output and ensure regular drainage.
  2. Place the air tank before the dryer if installed to allow cooling and buffering of the compressed air.
  3. Place the compressor on a flat, stable surface like concrete without the need for shock pads unless specified.
  4. Ensure at least 1.5 meters of clearance around the compressor for maintenance.

3. Air compressor pipe connections:

  1. Exhaust pipe connection: a. The exhaust pipe should connect from above to prevent condensation backflow.
    b. Ensure the pipe diameter matches or exceeds the exhaust port.
    c. Install a ball valve for isolation; no need for a check valve.

  2. Cooling water connections for water-cooled compressors: a. Install a 40-mesh water filter in the cooling water inlet.
    b. Ball valves must be installed between the water pipes and the compressor, with a drain valve for winter use.
    c. Install pressure and temperature gauges on water pipes.

4. Cooling water requirements for water-cooled compressors:

  1. Maintain water pressure between 0.3-0.5 MPa with at least 0.15 MPa pressure differential.
  2. Keep water temperature below 35°C, using a cooling tower if necessary.
  3. Adjust water flow based on compressor power.
  4. Ensure water quality:
    a. pH: 6.8 to 8
    b. Total dissolved solids: < 450 mg/L
    c. Hardness (as CaCO3): < 300 mg/L
    d. Suspended solids: < 50 mg/L
    e. Chlorides (Cl-): < 150 mg/L

5. Compressor ventilation:

  1. If the compressor power is low and the room is large, install exhaust fans high up to remove heat.
  2. For larger units, ductwork can be used to expel hot air outside. Keep ducting the same size as the compressor vent.
  3. If the duct length exceeds 5 meters or if the room remains hot, install an extractor fan.

6. Main electrical cable installation:

  1. Refer to the user manual for low-voltage cable specifications.
  2. Install fuses and isolation switches near the compressor for easy access.
  3. For high-voltage cables, follow national standards and design by certified professionals.
  4. Ensure the compressor motor shell is grounded with a separate grounding wire.
  5. Avoid stress on cables to prevent loosening and short circuits.
  6. Keep cables away from sharp metal edges to avoid damage.