Haier 1U25S2SQ1FA [18/54] Safety precautions
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Haier 1U25S2SQ1FA [18/54] Safety precautions

Haier 1U25S2SQ1FA [18/54] Safety precautions
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Safety Precautions Precautions for Handling Units for Use with R32 A Caution Do not use the existing refrigerant piping Use a vacuum pump with a reverse flow check valve The old refrigerant and refrigerator oil in the existing piping contain a large amount of chlorine which will cause the refrigerator oil in the new unit to deteriorate R32 is a high pressure refrigerant and the use of the existing piping may result in bursting If other types of valves are used the vacuum pump oil will flow back into the refrigerant cycle and cause the refrigerator oil to deteriorate Do not use the following tools that have been used with the conventional refrigerants Prepare tools that are for exclusive use with R32 Gauge manifold charging hose gas leak detector reverse flow check valve refrigerant charge base vacuum gauge and refrigerant recovery equipment If refrigerant and or refrigerant oil left on these tools are mixed in with R32 or if water is mixed with R32 it will cause the refrigerant to deteriorate Since R32 does not contain chlorine gas leak detectors for conventional refrigerators will not work English Keep the inner and outer surfaces of the pipes clean and free of contaminants such as sulfur oxides dust dirt shaving particles oils and moisture Contaminants inside the refrigerant piping will cause the refrigerant oil to deteriorate A Caution Store the piping to be used during installation indoors and keep both ends of the piping sealed until immediately before brazing keep elbows and other joints wrapped in plastic If dust dirt or water enters the refrigerant cycle it may cause the oil in the unit to deteriorate or may cause the compressor to malfunction Do not use a charging cylinder The use of charging cylinder will change the composition of the refrigerant and lead to power loss Exercise special care when handling the tools An introduction of foreign objects such as dust dirt or water into the refrigerant cycle will cause the refrigerating machine oil to deteriorate Use a small amount of ester oil ether oil or alkylbenzene to coat flares and flange connections A large amount of mineral oil will cause the refrigerating machine oil to deteriorate Use liquid refrigerant to charge the system Charge the unit with gas refrigerant will cause the refrigerant in the cylinder to change its composition and will lead to a drop in performance Only use R32 refrigerant The use of refrigerants containing chlorine i e R22 will cause the refrigerant to deteriorate Before Installing the Unit A Caution Do not install the unit in a place where there is a possibility of flammable gas leak Leaked gas accumulated around the unit may start a fire Do not use the unit to preserve food animals plants artifacts or for other special purposes The unit is not designed to provide adepuate conditions to preserve the quality of these items When installing the unit in a hospital take necessary measures against noise High frequency medical equipment may interfere with the normal operation of the air conditioning unit or the air conditioning unit may interfere with the normal operation of the medical equipment Do not use the unit in an unusual environment The use of the unit in the presence of a large amount of oil steam acid alkaline solvents or special types of sprays may lead to a remarkable drop in performance and or malfunction and presents a risk of electric shock smoke or fire The presence of organic solvents corroded gas such as ammonia sulfur compounds and acid may cause gas or water leak 15 Do not place the unit on or over things that may not get wet When humidity level exceeds 80 or when the drainage system is clogged indoor units may drip water Installation of a centralized drainage system for the outdoor unit may also need to be considered to prevent water drips from the outdoor units

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