AM.II.O.K3

From the FAA library

• Aviation Maintenance Technician Handbook - Airframep. 16-56
  Chapter 16: Cabin Environmental Control Systems › Vapor Cycle Air Conditioning › System Servicing

  Water is removed from the system by evacuation. Anytime the system refrigerant charge falls below atmospheric pressure, the refrigerant is lost, or the system is opened, it must be evacuated before recharging. Evacuating a vapor cycle air conditioning system ... also known as pumping down the system. A vacuum pump is connected and pressure inside the system is reduced to vaporize any water that may exist. Continued operation of the vacuum pump draws the water vapor from the system…

• Aviation Maintenance Technician Handbook - Airframep. 15-30
  Chapter 15: Ice & Rain Protection › Water & Waste Tank Ice Prevention

  Chemical As previously mentioned in this chapter, chemical anti-ice systems exist generally for small aircraft. This type of anti-ice is also used on windshields. Whether alone or part of a TKSTM system or similar, the liquid chemical ... which prevents ice from forming. The chemical can also deice the windshield of ice that may have already formed. Systems such as these have a fluid reservoir, pump, control valve, filter, and relief valve. Other components may exist. Figure…

• Pilot's Handbook of Aeronautical Knowledgep. 7-28
  Chapter 7: Aircraft Systems › Fuel Systems › Fuel System Icing

  safety measure, the fuel sumps should be drained before every flight during the preflight inspection. Fuel tanks should be filled after each flight or after the last flight of the day to prevent moisture condensation within the tank. To prevent ... remote areas or in emergency situations, there may be no alternative to refueling from sources with inadequate anti-contamination systems. While a chamois skin and funnel may be the only possible means of filtering fuel, using them is hazardous. Remember…