Hitachi RAF-25NH4 Données Techniques page 105

ASIC MODE
MODEL RAF-25NH4, RAF-50NH4, RAD-25QH4, RAD-40QH4
Operation mode
Fan Cooling
Basic operation of
start / stop switch
Off-timer
On-timer
Changes from "Hi" to "Med"
or "Lo" depending on room
temperature.
Auto
Temperature set
for cooling
Thermo judgment
Compressor
Hi
Med
Lo
1. Runs at "Hi" until first
thermo off after operation
is started.
2. Runs at "Lo" when thermo
is off.
Operates at "Hi" regardless of et to "Ultra-Hi" when the
Hi
the room temperature. compressor runs at maximum
speed, and to "Hi" in other
modes.
Operates at "Med" regardless ame as at left.
Med
of the room temperature.
Lo Operates at "Lo" regardless of ame as at left.
the room temperature.
Basic operation of Performs only fan operation at ee page 127.
temperature controller the set speed regardless of
the room temperature.
tart / stop swith
Operation lamp
Hi
Med
Lo
Hi Med Lo
leep operation Enters sleep operation after ame as at left.
･
(with sleep button ON) set as on the left. ee page 130.
･
Action during sleep operation
silent (sleep) operation
Dehumidifying
tart top tart
tart / stop switch
Operation lamp
tart / stop switch
Reserve switch
Cancel switch
Operation lamp
Timer lamp
Timer memory
(Off-timer during stop)
tart / stop switch
Reserve switch
Cancel switch
Operation lamp
Timer lamp
Timer memory
(Change in reserved time)
et to "Ultra-Lo", "Lo", "Med", "Hi", "Ultra-Hi" or "stop" depending on the room
temperature, time and heat exchange temperature. et to "stop" if the room
temperature is 18¼C in the "Ultra-Lo" mode other than during preheating
Room temperature (cooling is recovered at 18.33¼C).
On On
Off
3' (Compressor stopped
forcibly for 3 minutes)
et to "Ultra-Lo", "Lo", "Med", "Hi", "Ultra-Hi" or " top" depending on the room
temperature and time.
et to " top" if the room temperature is 18¼C in the "Ultra-Lo" mode other
than during preheating (cooling is recovered at 18.33¼C).
et to "Ultra-Hi" when the compressor is running at maximum speed during
hot dash or when recovered from defrosting.
et to "Ultra-Lo", "Lo", "Med" or " top" depending on the room temperature and time.
et to " top" if the room temperature is 18¼C in the "Ultra-Lo" mode other than during
preheating (cooling is recovered at 18.33¼C).
et to "Lo" in modes other than et to "Ultra-Lo", "Lo", or " top" depending on
when the compressor stops. the room temperature and time.
et to " top" if the room temperature is 18¼C
in the "Ultra-Lo" mode other than during
preheating (cooling is recovered at 18.33¼C).
The fan speed is controlled by the heat
exchanger temperature; the overload control is
executed as in the following diagram:
ee page 133. ee page 137.
ame as at left. ame as at left.
･ ･
ee page 133. ee page 140.
･ ･
Heating
top
(Change in reserved time)
(Off-timer during operation)
When the compressor is running at maximum speed
during hot dash or when recovered from defrosting. In modes other
than left
¼C
42.66
37.66
32.66
27.66
Heat exchanger
temperature
Hi or ultra-Hi
(fan speed set
to "auto"
Med
Lo
Heat exchanger temperature
KAFON
KAFOF
On On
Off
"Med" with overload
"Lo"
The neuro & fuzzy control allows device to determine
optimum operation mode and set temperature. However,
during auto cooling, the new cool rhythm starts when
the room temperature is less than the set temperature
plus 0.66¼C, after dash is finished.
Room
temperature
Neuro
patterm
recognition
Outdoor
temperature
Calendar
Fuzzy
control
Humidity
Notes:
(1)The set temperature can be vaned ±3¼C using the
temperature setting buttons ^ and v.
(2)If operation is started by tele-control or by temporary
switch in status where remote control has not been
used after power was supplied, the operation mode
will be as follows (since there is no stored calendar
data):
Cooling et temperature:28¼C
Fan mode: Auto
Dehumiditying et temperature:Room temperature at operation
start
Fan mode: Auto
et temperature:22¼C
Heating
Fan mode: Auto
ame as at left.
･
Performs the sleep operation of each operation mode.
･
Notes:
1. The speed set of rotaion for the fan motor in each operation mode are as shown in Table 1.
2. The set room temperatures in the diagram include the shift values in Table 2.
3. ee "Damper control theory" for damper control and upper / lower fan operations.
Auto
The special auto mode is based on N&F auto,
but the following is different:
Operation mode Mode change during operation
N&F auto Does not change as long as auto
door temparature or calendar data
does not change greatly.
pecial auto The operation mode will be judged the
same as at operation start every hour.
The special auto operation mode is entered when
operation is started in the following status:
< tart condition>
Power is supplied while the tele-control signal is
being input. (Operation starts automatically.)
<End condition>
The remote control restores the normal operation
mode.
Note
(1) ince there is no stored calendar data, N&F
control is not determined. ee Note (2) of N&F
auto.
Ð 115 Ð