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
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.
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 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.
●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
△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.
When Servicing
△Turn the power OFF at the main power box (mains) before opening the unit to check or repair
electrical parts and wiring.
△ Keep your fingers and clothing away from any moving parts.
△Clean up the site after you finish, remembering to check that no metal scraps or bits of wiring
have been left inside the unit being serviced.
Others
△Ventilate any enclosed areas when installing or testing the refrigeration system. Escaped
refrigerant gas, on contact with fire or heat, can produce dangerously toxic gas.
△Confirm upon completing installation that no refrigerant gas is leaking. If escaped gas comes in
contact with a stove, gas water heater, electric room heater or other heat source, it can produce
dangerously toxic gas.