LG HM121HF UB60 Installation Manual page 18

Air-to-water heat pump
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SAFETY INSTRUCTIONS
18
Safety when installing the product
• Any air vent located inside occupied space must be closed after
air was released. Automatic air vents must be closed with a cap.
If leaked refrigerant enters the water cycle, the gas shall not be
automatically released into the occupied space.
• Safety valves have to dispose outside the building.
Safety when commissioning the product
• The cap on the air-separator located in the Outdoor Unit may
never be closed.
Safety when Operating/Maintaining the product
• You ensure that the entire gas installation has been (or is
regularly) checked for absence of leaks, before use.
• When repair work has been completed on the refrigeration
circuit, it should be evacuated with a vacuum pump to remove
air and non-condensable gases from the system before charging
it with refrigerant.
• Gas detectors should be used when flammable gases/vapors are
likely to be released.
• Before executing any maintenance work, have the owner of the
property sign a working permit.
Operation
• Do not use the unit for special purposes, such as preserving
foods, works of art, etc.
- There is risk of damage or loss of property.
• Use a soft cloth to clean. Do not use harsh detergents, solvents,
etc.
- There is risk of fire, electric shock, or damage to the plastic
parts of the unit.

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