Hitachi RAC-18YH4, Service Manual

Page: 13 / 99

– 11 –
– 18 –
HOW TO SET THE SLEEP TIMER
Set the current time at first if it is not set bef
ore (see the pages f
or setting the current time).
Press the
(SLEEP) b
u
tton and the displa
y
changes as sho
wn belo
w
.
SLEEP
Mode
Indication
Sleep Timer
1 hour
2 hours
3
hours
7
hours
Sleep timer off
Sleep Timer:
The de
vice will continue
w
o
rk
ing f
or the desired number
of
hours and then tur
n
off
.
P
oint the signal window
of the remote controller to
w
a
rd the indoor unit, and
press the SLEEP b
u
tton.
The timer inf
or
mation will be displa
y
ed on the remote controller
. The
TIMER
lamp lights with a beep from the indoor unit.
When the sleep timer has
been set, the displa
y
indicates the tur
n
-off time
.
AM
Example: If you set 3 hours sleep time at 11:38 p
.m., the tur
n
-off time is 2:38 a.m.
Sleep
timer
Star
t
The de
vice will be tur
ned off b
y
the sleep timer
and tur
ned on b
y
on-timer
.
1
Set the ON-timer
.
2
Press the
(SLEEP) b
u
tton and set the sleep timer
.
AM AM
For heating: In this case
, the de
vice will tur
n
off in
2 hours (at 1:38 a.m.) and tur
n
on ear
ly
so that the preset temper
ature will be
almost reached at 6:00 ne
xt mor
ning.
Ho
w to Cancel Reser
v
ation
P
oint the signal windo
w of the remote controller to
w
ard the indoor unit, and press the
(CANCEL)
b
utton.
The
(RESER
VED) sign goes out with a beep and the
(TIMER) lamp tur
ns off on the indoor unit.
NOTE If y
ou set the sleep timer when the off-time or on/off-
timer has been set ear
lier
, the sleep timer becomes
eff
ectiv
e
instead of the off - or on/off-timer set ear
lier
.
– 19 –
ADJUSTING THE AIR DEFLECTORS
1
Adjustment of the conditioned air in the upward and downward directions. The horizontal air deflector is automatically
set to the proper angle
suitab
le f
or each operation.
The deflector can be
s
w
ung up and
down continuously and also set to the desired angle using the “
(A
UT
O SWING)”
b
utton.
•I
n“
Cooling”
operation,
do not k
eep the hor
iz
ontal air
deflector s
winging f
or a long time
. Some de
w ma
y f
o
rm
on
the hor
iz
ontal air deflector and de
w ma
y drop
.
CA
UTION
2
Adjustment of the conditioned air to the left and r
ight.
Hold the v
e
rtical air deflector as sho
wn in the figure and adjust
the conditioned air to the left and r
ight.
1
Remove the cover as shown in the figure and take out the old batteries.
2
Install the new batteries. The direction of the batter
ies should match the mar
k
s
in the case
.
1.
Do not use ne
w and old batter
ies
, or diff
erent kinds of
batter
ies together
.
2.
T
a
k
e
out the batter
ies when y
ou do not use the remote
controller for 2 or 3 months.
CAUTION
Push and pull to the direction of arro
w
.
Ve
rtical
Ve
rtical about 15
°
about 60
°
about 45
°
about 30
°
When cooling, dehumidifying When heating
•
If the
“
(A
UT
O SWING)”
b
utton is pressed once
, the hor
iz
ontal
air deflector swings up and down. If the button is pressed again, the deflector stops in its current position. Several seconds (about 6 seconds) may be required before the deflector starts to move.
•U
se the horizontal air deflector within the
adjusting range
shown in the right.
•W
hen the operation is stopped, the horizontal air deflector
moves and stops at the position where the air outlet closes.
Left side: Hold the third bl
ade from the left end
of the air deflector to adjust the direction.
The
pull f
o
r the b
lade is
mar
k
e
d.
Right side: Hold the third bl
a
d
e from the r
ight end
of the air deflector to adjust the direction.
The
pull f
or the b
lade is
mar
k
ed.
HOW TO EXCHANGE THE BATTERIES IN THE REMOTE CONTROLLER