Safety Precautions - Sea Breeze PTAC49CH3ZX Service Manual

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 that it operates safely and efficiently.
To prevent injury to the user or other people and
property damage, the following instructions must
be followed.
• 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.
About the pictures:
Erroneous handing gives a high possi-
Warning
bility to induce serious results such as
death or heavy injury.
Erroneous handing may induce
Caution
serious injury depending on the
situation.
Warning
All electric work must be performed by licensed technician,
cording to local regulations and the instructions given in this
manual.
• Do not supply power to the unit until all wiring and
tubing are completed or recommended 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 possible fire
hazard.
There is risk of fire, electric shock, explosion, or injury.
Ask your dealer or specialized subcontractor for installation or
repair work.
• Make sure the ceiling/wall is strong enough to hold the
unit's weight. The outdoor unit should be installed in a
location where air and noise emitted by the unit will not
disturb the neighbors.
• Properly insulate any tubing run inside a room to
prevent "sweating" that can cause dripping and water
damage to walls and floors.
• The outdoor unit must be installed on stable, level
surface, in a place where there is no accumulation of

SAFETY PRECAUTIONS

snow, leaves or rubbish.
• The unit should be installed according to the
instructions in order to minimize the risk of damage
from earthquakes, typhoons or strong winds.
• When the refrigerant touches the fire etc, it was
decomposed and a poisonous gas is generated.
• Use only the specified refrigerant to charge the
refrigerant circuit.
• Do not mix it with any other refrigerant and do not
allow air to remain in the circuit.
• Air enclosed in the circuit can cause high pressure
resulting in a rupture and other hazards.
• After completing installation work, make sure that
refrigerant gas has not leaked.
• The limit density is made not to be exceeded enen if the
refrigerant leaks by any chance.
• 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 of bits of wiring have been left
inside the unit being serviced.
• The unit must be properly earth connected.
• Never install on the place where a combustible gas
might leak. The gas may ignite or explode when the gas
leaks and collects in surround of the unit.
• When the unit is installed at telecommunication centers
or hospitals, take a proper provision against noise.
• When installing at a watery place, provide an electric
leak breaker.
• Do not wash the unit with water.
• Be very careful about unit transportation. The unit
should not be carried by only one person if it is more than
44 LBS. It occasionally causes the damage of the unit and
health to be impaired.
• Do not touch the heat exchanger fins with your hands.
Doing so may cut your hands.
• Do not touch the compressor or refrigerant piping
without wearing glove on your hands. Touching directly
such part can cause a burn or frostbite as it becomes high
or low temperature according to the refrigerant state.
• Do not operate the air conditioner without the air filter
set placed. Dust may accumulate, and cause a failure.
• At emergency (if you smell something burning), stop
operation and turn the power source switch off.
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Caution