Panasonic CU-3KE19NBU, CS-MKE9NB4U, CU-4KE31NBU, CU-4KE24NBU, CZ-18BT1U Please Read Before Starting

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.

This symbol refers to a hazard or unsafe practice which can

WARNING result in severe personal injury or death.

This symbol refers to a hazard or unsafe practice which can

CAUTION result in personal injury or prod- uct 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 improp- er 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 out- door units. Get a partner to help, and bend your knees when lifting to reduce strain on your back. Sharp edges or thin alu- minum 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.

	Keep the fire alarm and the air
	outlet at least 1.5 m away from
CAUTION
	the unit.

When Connecting Refrigerant Tubing

‡ :KHQSHUIRUPLQJpiping work

	do not mix air except for speci-
	fied refrigerant (R410A) in
	refrigeration cycle. It causes
	capacity down, and risk of
	explosion and injury due to
	high tension inside the refrige-
WARNING	rant 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.

‡'RQRWDGGDQ\UHIULJHUDQWDLURUVXEVWDQFHLQWRWKH refrigeration circuit other than the designated refrigerant (R410A). Adding anything other than the specified refrig- erant may cause the pressure to rise excessively in the refrigeration circuit, rupturing the circuit and causing injury or damage.

‡8VHDOOQHZWXELQJDQGIODUHQXWVWRPDNHWKHWXELQJFRQ nections. Using any previous parts (from R22-based sys- tems) may result in damage to the equipment, and may lead to the refrigeration circuit rupturing, causing a seri- ous accident.

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