Friedrich Twintemp, Service Manual

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Do 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.
Electrical 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.
Never operate the A/C unit with wet hands. •
Use air conditioner on a single dedicated circuit within the specified amperage rating. •
Use on a properly grounded outlet only. •
Do not remove ground prong of plug. •
Do not cut or modify the power supply cord. •
Do not use extension cords with the unit. •
Follow all safety precautions and use proper and adequate protective safety aids such as: gloves, •
goggles, clothing, adequately insulated tools, and testing equipment etc.
Failure to follow proper safety procedures and/or these warnings can result in serious injury or death. •
REFRIGERATION SYSTEM HAZARDS:
Use approved standard refrigerant recovering procedures and equipment to relieve pressure before •
opening system for repair.
Do not allow liquid refrigerant to contact skin. Direct contact with liquid refrigerant can result in minor •
to moderate injury.
Be extremely careful when using an oxy-acetylene torch. Direct contact with the torch’s flame or hot •
surfaces can cause serious burns.
Make sure to protect personal and surrounding property with fire proof materials. •
Have a fire extinguisher at hand while using a torch. •
Provide adequate ventilation to vent off toxic fumes, and work with a qualified assistant whenever •
possible.
Always use a pressure regulator when using dry nitrogen to test the sealed refrigeration system for •
leaks, flushing etc.
Make sure to follow all safety precautions and to use proper protective safety aids such as: gloves, •
safety glasses, clothing etc.
Failure to follow proper safety procedures and/or these warnings can result in serious injury or death. •
MECHANICAL HAZARDS:
Extreme care, proper judgment and all safety procedures must be followed when testing, •
troubleshooting, handling, or working around unit with moving and/or rotating parts.
Be careful when, handling and working around exposed edges and corners of sleeve, chassis, and •
other unit components especially the sharp fins of the indoor and outdoor coils.
Use proper and adequate protective aids such as: gloves, clothing, safety glasses etc. •
Failure to follow proper safety procedures and/or these warnings can result in serious injury or death. •
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