Haier 2U40MS3FRA Installationsanleitung Seite 8

WARNING:
● Safety Awareness
1. 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 be guaranteed.
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 Inspection
1. Indoor unit: nitrogen is sealed during the delivery of indoor units (inside the evaporator), and the red sign at the top of
the green plastic seal cap on the evaporator air pipes of the indoor unit shall be checked first after unpacking. In case the
sign is raised, the nitrogen sealed still exists. Afterwards, the black plastic seal cap at the joint of evaporator liquid pipes of
the indoor unit shall be pressed, to check whether nitrogen still exists. In case no 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, to check whether
the refrigerant is leaking. If the refrigerant leakage is identified, installation is not allowed, and the outdoor unit shall be
delivered to the maintenance department.
● Inspection on Installation Environment
1. 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 flammable refrigerants 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 be avoided below
the indoor unit.
4. The power supply shall be provided with earthing wire and be reliably earthed.
5. When drilling walls with an electric drill, always verify whether there are embedded water/electricity/gas pipes at the
user-preset hole location. Where possible, use pre-existing through-wall holes.
● Safety Principles of Installation
1. 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 not allowed
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 heat source and
flammable and combustible environment.
5. In case of refrigerant leakage of the indoor unit during installation, the valve of the outdoor unit shall be closed
immediately, and windows shall be opened, and all the personnel shall be evacuated. After the leakage of refrigerant
is handled, the indoor environment shall be subject to concentration detection. Further handling is not allowed until the
safety level is reached.
6. In case the product is damaged, it must be delivered to the maintenance point. Welding of refrigerant pipelines at the
A2L
Cotton clothes Anti-static gloves BEWARE Goggles
of installation ELECTROSTATICS
Read operator' manual Read technical manual Operator' manual；operating instructions
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