Haier AU282AHERA User Manual - Page 8

Safety Cautions Caution! Store the piping to be used during Do not use a charging cylinder. installation indoors, and keep both ends of the piping sealed until immediately before brazing.(keep elbows and other joints wrapped in plastic.) The use of charging cylinder will change the composition of the refrigerant and lead to power loss. If dust, dirt, or water enters the refrigerant cycle, it may cause the oil in the unit to deteriorate or Exercise special care when handling the tools. may cause the compressor to malfunction. An introduction of foreign objects such as dust, dirt, or water into the refrigerant cycle will cause Use a small amount of ester oil,ether oil, or the refrigerating machine oil to deteriorate. alkylbenzene to coat flares and flange connections. Only use R410A refrigerant. A large amount of mineral oil will cause the The use of refrigerants containing chlorine(i.e. refrigerating machine oil to deteriorate. R22) will cause the refrigerant to deteriorate. Use lipuid 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 Before Installing the Unit Warning! Do not install the unit in a place where there When installing the unit in a hospital,take is a possibility of flammable gas leak. necessary measures against noise. Leaked gas accumulated around the unit may start a fire. High-frequency medical equipment may interfere with the normal operation of the air conditioning unit or the air conditioning unit may interfere Do not use the unit to preserve food, with the normal operation of the medical animals, plants,artifacts, or for other special equipment purposes. The unit is not designed to provide adepuate Do not place the unit on or over things that conditions to preserve the quality of these items. may not get wet. 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.) 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. 6