2
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.
•  Do not supply power to the unit until all wiring and tubing 
are completed or reconnected and checked.
• 
Highly dangerous electrical voltages are used in this system. 
Carefully refer to the wiring diagram and these instructions 
when wiring. Improper connections and inadequate 
grounding can cause accidental injury or death.
•  Ground the unit following local electrical codes.
• 
Connect all wiring tightly. Loose wiring may cause 
overheating at connection points and a possible fire 
hazard.
•  Provide a power outlet to be used exclusively for each 
unit, and a power supply disconnect, circuit breaker and 
earth leakage breaker for overcurrent protection should 
be provided in the exclusive line.
•  Provide a power outlet exclusively for each unit, and 
full disconnection means contact separation in all poles 
must be incorporated in the fixed wiring in accordance 
with the wiring rules.
• To prevent possible hazards from insulation failure, 
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…
…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 (for Heat Pump-type Systems)
Install the outdoor unit on a raised platform that is higher 
than drifting snow. Provide snow vents.
When Connecting Refrigerant Tubing
WARNING
•  When performing piping 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.
•  Refrigerant gas leakage may cause 
fire.
•  Ventilate the room well, in the event that is refrigerant 
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.
•  Keep all tubing runs as short as possible.
•  Use the flare method for connecting tubing.
• 
Apply refrigerant lubricant to the matching surfaces of the 
flare and union tubes before connecting them, then tighten 
the nut with a torque wrench for a leak-free connection.
•  Check carefully for leaks before starting the test run.
•  Do not leak refrigerant while piping work for an 
installation or re-installation, and while repairing 
refrigeration parts. 
Handle liquid refrigerant carefully as it may cause 
frostbite.
Panaindoor336013Eng.indb2Panaindoor336013Eng.indb2 2012/03/2121:06:572012/03/2121:06:57