Haier 2U50S2SM1FA-3 Installation Manual

Also see for 2U40MEFFRA: Installation manual

Safety Awareness1. Procedures: operation shall be made as per controlled procedures to minimize the probability of risks.2. Area: area shall be divided and isolated appropriately, and operation in an enclosed space shall be avoided.Before the refrigeration system is started or before hot working, ventilation or opening of the area shall beguaranteed.3. Site inspection: the refrigerant shall be checked.4. Fire control: the fire extinguisher shall be placed nearby, and fire source or high temperature is not allowed;the sign of “No smoking” shall be arranged.Unpacking Inspection1. Indoor unit: nitrogen is sealed during the delivery of indoor units (inside the evaporator), and the red sign atthe top of the green plastic seal cap on the evaporator air pipes of the indoor unit shall be checked first afterunpacking. In case the sign is raised, the nitrogen sealed still exists. Afterwards, the black plastic seal cap at thejoint of evaporator liquid pipes of the indoor unit shall be pressed, to check whether nitrogen still exists. In caseno nitrogen is sprayed out, the indoor unit is subject to leakage, and installation is not allowed.2. Outdoor unit: the leak detection equipment shall be extended into the packing box of the outdoor unit, tocheck whether the refrigerant is leaking. If the refrigerant leakage is identified, installation is not allowed, and theoutdoor unit shall be delivered to the maintenance department.Inspection on Installation Environment1. The room area checked cannot be less than the area specified on the warning sign of the indoor unit.2. Inspection on the surrounding environment of place of installation: the outdoor unit of flammablerefrigerants air conditioner cannot be installed inside an enclosed room reserved.3. Power supply, switches or other high-temperature articles such as the fire source and oil heater shall beavoided below the indoor unit.4. The power supply shall be provided with earthing wire and be reliably earthed.5. While punching the wall with an electric drill, whether embedded water/electricity/gas pipelines aredesigned at the hole preset by the user shall be verified in advance. It is recommended that the through-wall holesreserved shall be used as much as possible.Safety Principles of Installation1. Favorable ventilation shall be maintained at the place of installation (doors and windows are opened).2. Open fire or high-temperature heat source (including welding, smoking and oven) higher than 548 is notallowed within the scope of flammable refrigerant.3. Anti-static measures shall be taken, such as the wearing of cotton clothes and cotton gloves.4. The place of installation shall be convenient for installation or maintenance, and cannot be adjacent to heatsource and flammable and combustible environment.5. In case of refrigerant leakage of the indoor unit during installation, the valve of the outdoor unit shall beclosed immediately, and windows shall be opened, and all the personnel shall be evacuated. After the leakage ofrefrigerant is handled, the indoor environment shall be subject to concentration detection. Further handling is notallowed until the safety level is reached.6. In case the product is damaged, it must be delivered to the maintenance point. Welding of refrigerantpipelines at the user’s site is not allowed.7. The installation position of air conditioner shall be convenient for installation or maintenance. Barriers shallbe avoided around the air inlet/outlet of the indoor/outdoor unit, and the electrical appliance, power switches,sockets, valuables and high-temperature products within the scope of both sidelines of the indoor unit shall beavoided.4No fire source around theplace of installationRead operator’ manual Read technical manual Operator’ manual operating instructionsCotton clothes Anti-static gloves BEWAREELECTROSTATICS Goggles