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1. Safety precautions
f the outdoor unit is installed in a small room
measures must be taken to prevent the refriger-
ant concentration in the room from e ceeding the
safety limit in the event of refrigerant leakage. on-
sult a dealer regarding the appropriate measures
to prevent the allo able concentration from being
e ceeded. Should the refrigerant leak and cause the
concentration limit to be e ceeded hazards due to
lack of o ygen in the room may result.
entilate the room if refrigerant leaks during opera-
tion. f refrigerant comes into contact
poisonous gases
ill be released.
ll electric
ork must be performed by a uali ed
technician according to local regulations and the
instructions given in this manual. The units must be
po ered by dedicated po er lines and the correct
voltage and circuit breakers must be used.
lines
ith insuf cient capacity or incorrect electri-
cal
ork may result in electric shock or re.
Use 1
copper phosphorus for copper and cop-
per alloy seamless pipes to connect the refriger-
ant pipes. f the pipes are not connected correctly
the unit
ill not be properly grounded and electric
shock may result.
Use only speci ed cables for
connections must be made securely
sion applied on the terminal connections.
never splice the cables for
indicated in this document .
Failure to observe these instructions may result in
overheating or a re.
The terminal block cover panel of the outdoor unit
must be rmly attached. f the cover panel is mount-
ed incorrectly and dust and moisture enter the unit
electric shock or re may result.
1.1. efore installation
aution:
Do not use the unit in an unusual environment. f the
outdoor unit is installed in areas e posed to steam
volatile oil including machine oil or sulfuric gas
areas e posed to high salt content such as the
seaside or areas
here the unit
sno
the performance can be signi cantly reduced
and the internal parts can be damaged.
Do not install the unit
here combustible gases
may leak be produced
o
bustible gas accumulates around the unit
e plosion may result.
ith a ame
o er
iring. The
iring
ith no ten-
lso
iring unless other ise
ill be covered by
or accumulate. f com-
re or
When installing or relocating or servicing the out-
door unit use only the speci ed refrigerant
to charge the refrigerant lines. Do not mi it ith any
other refrigerant and do not allo
the lines.
f air is mi ed
ith the refrigerant then it can be the
cause of abnormal high pressure in the refrigerant
line and may result in an e plosion and other haz-
ards.
The use of any refrigerant other than that speci-
ed for the system
ill cause mechanical failure or
system malfunction or unit breakdo n. n the
case this could lead to a serious impediment to se-
curing product safety.
Use only accessories authorized by
Electric and ask a dealer or an authorized techni-
cian to install them. f accessories are incorrectly
installed
ater leakage electric shock or re may
result.
Do not alter the unit. onsult a dealer for repairs. f
alterations or repairs are not performed correctly
ater leakage electric shock or re may result.
The user should never attempt to repair the unit or
transfer it to another location. f the unit is installed
incorrectly
ater leakage electric shock or
may result. f the outdoor unit must be repaired or
moved ask a dealer or an authorized technician.
fter installation has been completed check for
refrigerant leaks. f refrigerant leaks into the room
and comes into contact
ith the ame of a heater
or portable cooking range poisonous gases
released.
The outdoor unit produces condensation during
the heating operation. Make sure to provide drain-
age around the outdoor unit if such condensation is
likely to cause damage.
When installing the unit in a hospital or communi-
cations of ce be prepared for noise and electronic
interference.
nverters
home appliances
fre uency medical e uipment and radio commu-
nications e uipment can cause the outdoor unit to
malfunction or breakdo n. The outdoor unit may
also affect medical e uipment disturbing medical
care and communications e uipment harming the
screen display uality.
1
air to remain in
orst
itsubishi
re
ill be
high-
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