Hitachi RAC-25FPA, Service Manual

Page: 8 / 117

ENGLISH
–
2
–
SAFETY PRECA
UTION
s
Please read the
“
Saf
e
ty Precaution
”
carefully bef
ore oper
a
ting the unit to ensure correct usage of the unit.
s
P
a
y special attention to signs of
“
W
arning
”
and
“
Caution
”
. The
“
W
a
rning
”
section contains
matters which, if not obser
v
ed str
ictly
, ma
y cause death or ser
ious injur
y.
The
“
Caution
”
section
contains matters which ma
y result in ser
ious consequences if not obser
v
ed proper
ly
. Please obser
v
e
all instr
uctions str
ictly to ensure saf
ety
.
s
The signs indicate the f
ollo
wing meanings
. (The f
ollo
wing are e
xamples of signs
.)
s
Please k
eep this man
ual after reading.
W
ARNING
CA
UTION
s
Do not reconstruct the unit. W
ater leakage
, f
ault, shor
t circuit or fire ma
y occur if y
ou reconstr
uct the unit b
y
yourself.
s
Please ask y
our sales agent or qualified technician f
or the installation of y
our
unit. W
ater leakage
, shor
t circuit or fire ma
y occur if y
ou install the unit b
y
y
ourself
.
s
Please use earth line. Do not place the ear
th line near w
ater or gas pipes
, lightning-conductor
, or the
earth line of telephone. Improper installation of earth line may cause electric shock.
s
Be sure to use the specified piping set for R410A. Otherwise, this may result in broken copper pipes or faults.
s
A circuit breaker should be installed depending on the mounting site of the unit. Without a circuit break
er
, the danger of electr
ic shoc
k e
xists
.
s
Do not install the unit near a location where there is flammable gas. The outdoor unit may catch fire if flammable gas leaks around it. Piping shall be suitable supported with a maximum spacing of 1m between the supports.
s
Please ensure smooth flo
w of w
ater when installing the dr
ain hose
. If an
y f
ailure
is f
ound in the dr
ain path, w
ater drops from the indoor and outdoor units
, causing
w
et household eff
ects
.
s
Mak
e sure that a single phase 230V po
w
er source is used.
The use of other power sources may cause electrical components to overheat and lead to fire.
PR
OHIBITION
CONNECT EAR
TH LINE
PR
OHIBITION
PR
OHIBITION
s
Should abnor
mal situation ar
ise (lik
e b
u
rning smell), please stop oper
ating the
unit and remo
v
e
plug from the soc
k
et or tur
n off the circuit break
er
. Contact y
our
agent.
F
ault, shor
t circuit or fire ma
y occur if y
ou contin
ue to oper
ate the unit
under abnor
mal situation.
s
Please contact your agent for maintenance. Improper self maintenance may cause electric shock and fire.
s
Please contact your agent if you need to remove and reinstall the unit. Electr
ic shoc
k or fire ma
y occur if y
ou remo
v
e
and reinstall the unit y
ourself improper
ly
.
W
ARNING
PRECA
UTIONS DURING INST
ALLA
TION
PRECA
UTIONS DURING SHIFTING OR MAINTENANCE
“
OFF
”
PR
OHIBITION
s
A
v
oid an e
xtended per
iod of direct air flo
w f
or y
our health.
s
Do not connect the po
w
e
r calbe with an e
x
tension cab
le or do not plug too man
y
leads of the other electric appliance into the socket where this cable is plugged. In addition, wire the cable with some allowances to prevent the cable from stretching. Not doing so will cause an electrical shock, heat generation or fire.
PR
OHIBITION
s
Do not put objects lik
e thin rods into the panel of b
lo
w
er and suction side
because the high-speed f
an inside ma
y cause danger
.
s
Do not b
undle the po
w
er cab
le
, pull it, put something on it, heat it, process it, or
put it between things. Breakage of the power cable may result. Use of a damaged cable may cause an electrical shock or a fire.
PR
OHIBITION
PR
OHIBITION
–
3
–
W
ARNING
PRECA
UTIONS DURING OPERA
TION
s
Do not use any conductor as fuse wire, this could cause fatal accident.
PROHIBITION
s
Dur
ing thunder stor
m, disconnect the plug top or tur
n off the circuit break
er
.
s
Spray cans and other combustibles should not be located within a meter of the air outlets of both indoor and outdoor units
.
As a spr
a
y can
’
s inter
nal pressure can be increased b
y
hot air
, a r
u
pture ma
y result.
“
OFF
”
CAUTION
PROHIBITION
s
The product shall be operated under the man
uf
acturer specification and not f
o
r
an
y other intended use
.
PR
OHIBITION
DON
’
T WET
s
Do not attempt to oper
ate the unit with w
et hands
, this could cause f
atal accident.
STRICTL
Y OBSER
VE
PRECA
UTIONS
PR
OHIBITION
PR
OHIBITION
PR
OHIBITION
PR
OHIBITION
PR
OHIBITION
s
When oper
ating the unit with b
u
rning equipments
, regular
ly v
entilate
the room to a
v
oid o
xygen insufficiency
.
s
Do not direct the cool air coming out from the air-conditioner panel to face household heating appar
atus as this ma
y aff
ect the w
o
rking of
appar
atus such as the electr
ic k
ettle
, o
v
en etc.
s
Do not w
ash the unit with w
ater or place a w
ater container such as a
vase on the indoor unit. Electrical leakage could be present and cause electric shock.
s
Please ensure that outdoor mounting fr
ame is alw
a
ys stab
le
, fir
m and
without def
ect.
If not, the outdoor unit ma
y collapse and cause danger
.
s
Do not place plants or animals directly under the air flo
w as it is bad f
or the plants or
animals
.
s
Do not climb on the outdoor unit or put objects on it.
PR
OHIBITION
PR
OHIBITION
PR
OHIBITION
DON
’
T T
OUCH
DON
’
T T
OUCH
s
When operating the unit with the door and windows opened, (the room humidity is always above 80%) and with the air deflector facing down or moving automati- cally for a long period of time, water will condense on the air deflector and drips do
wn occasionally
.
This will w
et y
our fur
niture
.
Theref
ore
, do not operate under
such condition for a long time.
s
If the amount of heat in the room is abo
v
e
the cooling or heating capability of the
unit (f
or e
xample:
more people enter
ing the room, using heating equipments and
etc.), the preset room temper
ature cannot be achie
v
ed.
s
This appliance especially indoor unit cleaning must be performed by authorized personnel only
. Consult y
our sales agent.
Using a commercially available detergent or similar can damage the plastic parts or clog the drain pipe, causing water to drip with potential electric shock hazard.
s
Do not touch the air outlet, bottom surf
ace and aluminum fin of the outdoor
unit. Y
ou ma
y get hur
t.
s
Do not touch the refr
igerant pipe and connecting v
alv
e
.
Bur
ns ma
y result.
s
This appliance is not intended for use by young children or infirm persons unless they have been adequately super
vised b
y
a responsib
le person to ensure that the
y
can use this appliance saf
e
ly
.
s
Y
oung children should be super
vised to ensure that the
y do not pla
y with the appliance
.
Make sure to connect earth line.
The sign in the
gure indicates prohibition.
Indicates the instructions that must be followed.
8