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1. Safety precautions
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the operation season.
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tive parts are correctly installed. Rotating, hot, or high voltage parts can
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pipes, to connect the refrigerant pipes. Make sure the insides of the pipes
are clean and do not contain any harmful contaminants such as sulfuric
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R22 refrigerant.
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oil, oil deterioration may result.
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checked for looseness, cracks or other damage. If such defects are left un-
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can leak out.
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pipes, lightning rods, or telephone grounding lines. If the unit is not prop-
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frigerant lines, refrigeration oil deterioration may result.
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