Panasonic CU-4KS31NBU CU-3KS19NBU/CU-4KS24NBU/CU-4KS31NBU - Installation Manua - Page 3

IMPORTANT! Please Read Before Starting This air conditioning system meets strict safety and operating standards. As the installer or service person, it is an important part of your job to install or service the system so it operates safely and efficiently. For safe installation and trouble-free operation, you must:
Carefully read this instruction booklet before beginning.
Follow each installation or repair step exactly as shown.
Observe all local, state, and national electrical codes.
Pay close attention to all warning and caution notices given in this manual. WARNING This symbol refers to a hazard or unsafe practice which can result in severe personal injury or death. CAUTION This symbol refers to a hazard or unsafe practice which can result in personal injury or product or property damage. If Necessary, Get Help These instructions are all you need for most installation sites and maintenance conditions. If you require help for a special problem, contact our sales/service outlet or your certified dealer for additional instructions. In Case of Improper Installation The manufacturer shall in no way be responsible for improper installation or maintenance service, including failure to follow the instructions in this document. SPECIAL PRECAUTIONS WARNING When Wiring ELECTRICAL SHOCK CAN CAUSE SEVERE PERSONAL INJURY OR DEATH. ONLY A QUALIFIED, EXPERIENCED ELECTRICIAN SHOULD ATTEMPT TO WIRE THIS SYSTEM. ‡ 'RQRWVXSSO\SRZHUWRWKHXQLWXQWLODOOZLULQJDQGWXELQJ are completed or reconnected and checked. ‡ +LJKO\GDQJHURXVHOHFWULFDOYROWDJHVDUHXVHGLQWKLV system. Carefully refer to the wiring diagram and these instructions when wiring. Improper connections and inadequate grounding can cause accidental injury or death. ‡ *URXQGWKHXQLW following local electrical codes. ‡ &RQQHFWDOOZLULQJWLJKWO\/RRVHZLULQJPD\FDXVHRYHU heating at connection points and a possible fire hazard. ‡ 7RSUHYHQWSRVVLEOHKD]DUGVIURPLQVXODWLRQIDLOXUH the unit must be grounded. When Transporting Be careful when picking up and moving the indoor and outdoor units. Get a partner to help, and bend your knees when lifting to reduce strain on your back. Sharp edges or thin aluminum fins on the air conditioner can cut your fingers. When Installing... Select an installation location which is rigid and strong enough to support or hold the unit, and select a location for easy maintenance. ...In a Ceiling or Wall Make sure the ceiling/wall is strong enough to hold the unit's weight. It may be necessary to construct a strong wood or metal frame to provide added support. ...In a Room Properly insulate any tubing run inside a room to prevent "sweating" that can cause dripping and water damage to walls and floors. CAUTION Keep the fire alarm and the air outlet at least 1.5 m away from the unit. ...In Moist or Uneven Locations Use a raised concrete pad or concrete blocks to provide a solid, level foundation for the outdoor unit. This prevents water damage and abnormal vibration. ...In an Area with High Winds Securely anchor the outdoor unit down with bolts and a metal frame. Provide a suitable air baffle. ...In a Snowy Area Install the outdoor unit on a raised platform that is higher than drifting snow. Provide snow vents. When Connecting Refrigerant Tubing WARNING ‡ :KHQSHUIRUPLQJpiping work do not mix air except for specified refrigerant (R410A) in refrigeration cycle. It causes capacity down, and risk of explosion and injury due to high tension inside the refrigerant cycle. ‡ 5HIULJHUDQWJDVOHDNDJHPD\ cause fire. ‡ 'RQRWDGGRUUHSODFHUHIULJHUDQW other than specified type. It may cause product damage, burst and injury etc. ‡ 9HQWLODWHWKHURRPZHOOLQWKHHYHQWWKDWUHIULJHUDQW gas leaks during the installation. Be careful not to allow contact of the refrigerant gas with a flame as this will cause the generation of poisonous gas. 2