Hitachi RAS-50FH5 - Basic Mode

– 49 –
Notes:
1. The speed set of rotation 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
Same as at left.
Performs the sleep operation of each operation mode.
Operating mode is judged by room temperature and outdoor temperature.
(1) Judging by outdoor temperature
Operating mode is judged by outdoor temperature.
Only when the mode is not restricted by this judgment, the judgment by room temperature in the next pa ragraph
will be per formed.
(a) Outdoor temperature
30 C : Restricted to cooling
(b) Outdoor temperature
9 C : Restricted to heating
(2) Judging by room temperature
Operating mode at start up is judged (initial judgment)
(a) Conditions for judgment (any of the followings)
When auto ope ration is started after 1 hour has elapsed since the operation was stopped.
When auto ope ration is started after the previous ma nual mode operation.
When the ope rating mode is switched to auto while operating at manual mode.
(b) Judging method
Room temperature
23 C ± 3 C : Cooling
Room temperature < 23
C ± 3 C : Heating
± 3
C is the fine adjustment value from the remote controller.
Judging operating mode change during operation (Continuous judgment)
(a) Conditions for judgment (any of the followings)
The mode is reviewed at every interval time.
When auto ope ration is started again before 1 hour has elapsed since the operation was stopped.
(b) Judging metho d
Judge by setting the hysteresis on the final preset temperature.
The final preset temperature is the actually targeted preset temperature which is the sum of the basic preset temperature
and each type of shift value (e.g. ± 3
C by remote controller, preset temperature correction value, p owerful shift value, etc.).
[Currently cooling]
Room temperature
Final preset temperature Ð3 C Change to heating
Room temperature > Final preset temperature Ð3
C Continue cooling
[Currently heating]
Room temperature
Final preset temperature +2 C Change to cooling
Room temperature < Final preset temperature +2
C Continue heating
Set to Òultra-LoÓ, ÒLoÓ, ÒMedÓ, ÒHiÓ, Òultra-HiÓ or ÒstopÓ depending on the room temperature,
time and heat exchange temperature. Set to ÒstopÓ if the room temperature is 18
Cinthe
Òultra-LoÓ mode other than during preheating (cooling is recovered at 18.33
C).
Set to Òultra-LoÓ, ÒLoÓ, ÒMedÓ, ÒHiÓ, Òultra-HiÓ or ÒstopÓ depending on the room temperature, and
time. Set to ÒstopÓ if the room temperature is 18
C in the Òultra-LoÓ mode other than during
preheating (cooling is recovered at 18.33
C).
Set to Òultra-HiÓ when the compressor is running at maxi mum speed during hot dash or when
recovered from defrosting.
Set to Òultra-LoÓ, ÒLoÓ, ÒMedÓ or ÒstopÓ depending on the room temperature and time. Set to
ÒstopÓ if the room temperature is 18
C in the Òultra-LoÓ mode other than during preseating
(cooling is recovered at 18.33
C).
Set to Òultra-LoÓ, ÒLoÓ, or ÒstopÓ depending on the room temperature and time. Set to ÒstopÓ if
the room temperature is 18
C in the Òultra-LoÓ mode other than during preseating (cooling is
recovered at 18.33
C). The fan speed is controlled by the heat exchanger temperature; the
overload control is executed as in the following diagram:
See page 55.
Same as at left
See page 57.
Set to ÒHiÓ in modes other than when the
compressor stops.
Set to ÒMedÓ in modes other than when the
compressor stops.
Set to ÒLoÓ in modes other than when the
compressor stops.
See page 53.
Same as at left
See page 53.
Set to Òultra-HiÓ when the
compressor runs at maximum
speed, and to ÒHiÓ in other modes.
1. Runs at ÒHiÓ until first thermo
off after operation is started.
2. Runs at ÒLoÓ when the r mo is
off.
1. The indoor fan also stops when the
compressor is in stop status.
Changes between ÒLoÓ and ÒMedÓ
depending on the room temperature.
Changes from ÒHiÓ to ÒMedÓ or
ÒLoÓ depending on room
temperature.
Division 1
Division 2
Division 3
Division 4
Lo
Fan speedTemperature division
Lo
Med
Med
Same as at left.
Same as at left.
See page 49.
Same as at left
See page 51.
Operates at ÒHiÓ regardless of the
room temperature.
Operates at ÒMedÓ regardless of
the room temperature.
Operates at ÒLoÓ regardless of the
room temperature.
Performs only fan operation at the
set speed regardless of the room
temperature.
Enters sleep operation after set
as on the left.
Action during sleep operation
Lo (sleep) operation
Hi
)nafroodni(edomd
e
epsnaF
Med
Lo
Basic operation of
temperature controller
Sleep operation
(with sleep button ON)
When the compressor is running at maximum speed
during hot dash or when recovered from defrosting.
In modes other than
left
42. 66
C
37. 66
32. 66
29. 66
Lo
Med
Med with overload
Lo
KAFON
Heat exchanger temperature
KAFOF
Hi or ultra-HI
(fan speed set
to auto)
Heat exchanger
temperature
(Compressor stopped
forcibly for 3 minutes)
Thermo iudgment
Temperature set
for cooling
Compressor
Hi
Med
Lo
AutoHeatingCooling
Dehumidifying
(dehumidifying operation by the
function select button only, not including
that engaged by the dehumidify button)
Fan
Operation mod e
BASIC MO D E
Basic operation o f
start/stop switch
Off-timer
On-timer
sn
o
i
tc
nufr
em
iT
Off -> O n
On -> Off time r
Auto
Start Stop
(Off-timer during stop)
(On-timer during operation)
ON ONONOFF OFF OFF ONOFF
(Change in reserved time)
(Change in reserved time)
(Off->On timer) (On->Off timer) (On->Off timer)
during operation)
(Off->On timer)
during stop)
Start
Start/stop switch
Operation tamp
Start/stop switch
Operation tamp
Cancel switch
Cancel switch
Reserve switch
Srart/stop switch
Operation temp
Operation temp
Timer tamp
Timer tamp
Timer memory
Timer memory
Timer memory
Timer lamp
Operation lamp
Cancel switch
Reserve switch
Start/stop switch
Stop
Start/stop switch
Operation lamp
Hi
Hi Med Lo
na
F
d
e
epS
Med
Lo
Cooling
Heating
Room
-temperature
22
C
9
C30C
Outdoor
temperature
Cooling
Heating
final preset tempe rature