Friedrich KUHL R-410A Service Manual page 4

• D o not spray or pour water on the return air grille, discharge air grille, evaporator coil, control panel,
and sleeve on the room side of the air conditioning unit while cleaning.
• E lectrical component malfunction caused by water could result in electric shock or other electrically
unsafe conditions when the power is restored and the unit is turned on, even after the exterior is dry.
• N ever operate the A/C unit with wet hands.
• U se air conditioner on a single dedicated circuit within the specifi ed amperage rating.
• U se on a properly grounded outlet only.
• D o not remove ground prong of plug.
• D o not cut or modify the power supply cord.
• D o not use extension cords with the unit.
• F ollow all safety precautions and use proper and adequate protective safety aids such as: gloves,
goggles, clothing, adequately insulated tools, and testing equipment etc.
• F ailure to follow proper safety procedures and/or these warnings can result in serious injury or death.
REFRIGERATION SYSTEM REPAIR HAZARDS:
• U se approved standard refrigerant recovering procedures and equipment to relieve pressure before
opening system for repair.
• D o not allow liquid refrigerant to contact skin. Direct contact with liquid refrigerant can result in minor
to moderate injury.
• B e extremely careful when using an oxy-acetylene torch. Direct contact with the torch's fl ame or hot
surfaces can cause serious burns.
• M ake sure to protect personal and surrounding property with fi re proof materials.
• Have a fi re extinguisher at hand while using a torch.
• Pr ovide adequate ventilation to vent off toxic fumes, and work with a qualifi ed assistant whenever
possible.
• A lways use a pressure regulator when using dry nitrogen to test the sealed refrigeration system for
leaks, fl ushing etc.
• M ake sure to follow all safety precautions and to use proper protective safety aids such as: gloves,
safety glasses, clothing etc.
• F ailure to follow proper safety procedures and/or these warnings can result in serious injury or death.
MECHANICAL HAZARDS:
• E xtreme care, proper judgment and all safety procedures must be followed when testing,
troubleshooting, handling, or working around unit with moving and/or rotating parts.
• B e careful when, handling and working around exposed edges and corners of the sleeve, chassis,
and other unit components especially the sharp fi ns of the indoor and outdoor coils.
• U se proper and adequate protective aids such as: gloves, clothing, safety glasses etc.
• F ailure to follow proper safety procedures and/or these warnings can result in serious injury or death.
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