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1. Safety Precautions
E
1.1. Before installation and electric work
Warning:
•
The unit must be securely installed on a structure that can sus-
tain its weight. If the unit is mounted on an unstable structure, it
may fall down causing injuries.
•
Use only specified cables for wiring. The connections must be
made securely without pulling on the terminals. Improper con-
nections or installation may generate heat or cause a fire.
•
The unit should be installed according to the instructions in or-
der to minimize the risk of damage from earthquakes, typhoons
or strong winds. An improperly installed unit may fall down and
cause damage or injuries.
•
When installing an optional air cleaner or humidifier, be sure to
use only products specified by Mitsubishi.
All accessories must be installed by an authorized technician.
The user must not try to install accessories. Improperly installed
accessories can cause water leakage, electric shock or fire.
•
Do not turn on the power until installation has been completed.
Failure to do so may cause an electric shock or fire.
1.1. Before installation and electric work
Warning:
•
All electric work must be performed by a licensed technician, ac-
cording to local regulations and the instructions given in this
manual.
The units should be powered by dedicated power lines. Power
lines with insufficient capacity or improper electrical work may
result in electric shock or fire.
•
The terminal block cover of the outdoor unit must be firmly at-
tached to prevent entry of dust and moisture. Improper mounting
of the cover can cause electric shock or fire.
•
Use only the specified refrigerant (R-22) 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
pressure peaks resulting in a rupture and other hazards.
•
If the air conditioner is installed in a small room, measures must
be taken to prevent the refrigerant concentration in the room from
exceeding the safety limit in the event of refrigerant leakage.
Consult the dealer regarding the appropriate measures to pre-
vent the allowable concentration from being exceeded. Should
the refrigerant leak and cause the concentration limit to be ex-
ceeded, hazards due to lack of oxygen in the room could result.
•
Ventilate the room if refrigerant leaks during operation.
If the refrigerant comes in contact with a flame, poisonous gases
will be released.
3
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