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When operation is begun, the deodorization level is 3; when the relay is shut down
and re-started, the fan speed will change.
and re-started, the fan speed will change.
Deodorization status
Relay on/off
Airflow
rate
rate
cooling
area
area
soft dry
area
area
Relay on
Compressor
operation
Compressor
operation
Relay off
Or compressor
stopped
Or compressor
stopped
Auto
fan
speed
Auto
fan
speed
fan
speed
Auto
fan
speed
1
2
3
OFF
OFF
OFF
OFF
OFF
OFF
Lo
Lo
Lo
Lo
Me
Hi
Lo
Lo
Lo
Lo
Lo
Lo
Relay on
Compressor
operation
Compressor
operation
1
2
3
Compressor
Indoor fan
ON
OFF
OFF
OFF
OFF
OFF
Hi
Lo
Lo
Me
Lo
Lo
D Filter examination control
The accumulative operation time of the indoor fan is stored in EEPROM. (hour as
unit)
the
The filter light will flash if the accumulative operation time of the indoor fan multiplied
the correction coefficient exceeds the time in the following table.
the correction coefficient exceeds the time in the following table.
by
According to the accumulative total operation time of the indoor fan motor, test the dust
deposit status of the filter so as to judge whether the filter light LED is flashing or not and
tell the user to clean or neaten the filter.
deposit status of the filter so as to judge whether the filter light LED is flashing or not and
tell the user to clean or neaten the filter.
wall-mounted type
Indoor fan
Under Low in heating
Under Me in heating
Other
Correction coefficient (%)
Flashing time of filter LED
(time)
Other
Indoor fan
Under Low in heating
Under Me in heating
Other
Correction coefficient (%)
Flashing time of filter LED
(time)
e.g. wall-mounted type
under Lo in heating
When
(t
0.5) is 360 to 720 hours, the indicator will flash.
This control can be released by pressing the filter-reset button on the remote control.
101
50
720
537
360
75
100
50
2000
1500
1000
75
100
CU-MP28DBH5/CU-MP50DBH5
wall-mounted type (cooling, soft dry and air circulation)
In heating and heat-removing control
Auto operation mode judgment
(lower limit)
(lower limit)
Except
the
above
the
above
Except
the
above
the
above
Except
the
above
the
above
Except
the
above
the
above
Waiting in abnormal mode
In Forced cooling
operation
operation
Rated cooling
capacity
capacity
Deicing control
Maximal capacity
countermeasure
countermeasure
Auto
blowing
rate
blowing
rate
Manual
blowing
rate
blowing
rate
cooling
soft dry
Blowing
Lo-
Lo-
Hi
Hi
Hi
Corresponding
designated
fan speed
designated
fan speed
Hi
Normal auto
(deodorization
control)
(deodorization
control)
Remote
controlsetting
controlsetting
Corresponding
designated
fan speed
designated
fan speed
Lo
Normal
program
setting
program
setting
Remote
control
setting
control
setting
Lo
E Indoor fan control
wall-mounted type (cooling, soft dry and air circulation)
In heating and heat-removing control
Auto operation mode judgment
(lower limit)
(lower limit)
Except
the
above
the
above
Except
the
above
the
above
Except
the
above
the
above
Except
the
above
the
above
Waiting in abnormal mode
In forced cooling
operation
operation
Rated cooling
capacity
capacity
Deicing control
Maximal capacity
countermeasure
countermeasure
Auto
fan
speed
fan
speed
Manual
fan
speed
fan
speed
cooling
soft dry
Blowing
Lo-
Lo-
Hi
Hi
Hi
Corresponding
designated
fan speed
designated
fan speed
SHi
Normal auto
(deodorization
control)
(deodorization
control)
Remote
control setting
control setting
Hi
Hi
Corresponding
designated
fan speed
designated
fan speed
Normal auto
(deodorization
control)
(deodorization
control)
SLo
Normal
program
setting
program
setting
Remote
control
setting
control
setting
102
CU-MP28DBH5/CU-MP50DBH5
wall-mounted type (heating)
Except
the above
Except
the above
Except
the above
Except
the above
In heating and heat-removing control
Auto running mode judgment (lower limit)
Waiting in abnormal mode
In warm boot
In deicingrunning
Rated heating capacity
Heating new JIS control
Maximal
control
Heating
Lo
Lo
Stop
Stop
Stop
Hi
Hi
Stop Lo
Lo
Details as
follows
Heating
Forced
running
begins
Forced
running
begins
Lo
Relay off
Heating
room
temperature
sample
room
temperature
sample
Tubing
temperature
control
temperature
control
Minimum
control
Details as
follows
follows
Me
Tubing
temperature
control
temperature
control
Forced
heating
running
heating
running
Except the
above
Normal
setting
setting
Remote
control
setting
control
setting
Auto
blowing
rate
blowing
rate
Manual
blowing
rate
blowing
rate
wall-mounted type (heating)
Except
the above
Except
the above
Except
the above
Except
the above
In heating and heat-removing control
Auto running mode judgment (lower limit)
Waiting in abnormal mode
In warm boot
In deicingrunning
Rated heating capacity
Heating new JIS control
Maximal
control
Heating
Lo
Lo
Stop
Stop
Stop
SHi
SSHi
Stop SHi
SLo
Details as
follows
Heating
Forced
running
begins
Forced
running
begins
Lo-
Relay off
Heating
room
temperature
sample
room
temperature
sample
Tubing
temperature
control
temperature
control
Minimum
control
Details as
follows
follows
Me
Tubing
temperature
control
temperature
control
Forced
heating
operation
heating
operation
Except the
above
Normal
setting
setting
Remote
control
setting
control
setting
Auto
blowing
rate
blowing
rate
Manual
blowing
rate
blowing
rate
103
CU-MP28DBH5/CU-MP50DBH5
F Fan motor control
Rotating speed feedback control
1 second after the fan was started, the rotating speed feedback will be in the
corresponding range and high-pressure PWM motor will run at the speed of 0.5 second.
1 second after the fan was started, the rotating speed feedback will be in the
corresponding range and high-pressure PWM motor will run at the speed of 0.5 second.
Error check control
If the feedback rotating speed is detected to be over 2550r/min or be under 50r/min in 25
seconds after startup, the fan will be stopped, and then restarted.
Abnormal examination will not be carried out 10 seconds after startup. If the above-
mentioned condition happens for continuous 7 times, the fan will be locked.
If the feedback rotating speed is detected to be over 2550r/min or be under 50r/min in 25
seconds after startup, the fan will be stopped, and then restarted.
Abnormal examination will not be carried out 10 seconds after startup. If the above-
mentioned condition happens for continuous 7 times, the fan will be locked.
In 5 seconds after stop, the fan cannot be started (except when the power supply is
re-switched on).
re-switched on).
Auto restart
In the case of power failure during the running, the running air-conditioner will run in the
mode before the power failure after resumed (time delay security control is effective).
Note: if it is abnormally stopped, the running mode will be different from that before the
stop, so as to protect the air-conditioner. (power failure auto re-start is ineffective.)
mode before the power failure after resumed (time delay security control is effective).
Note: if it is abnormally stopped, the running mode will be different from that before the
stop, so as to protect the air-conditioner. (power failure auto re-start is ineffective.)
9.16.2. Airflow direction setting
Vane position setting
wall-mounted type
Heating
Cooling
soft dry
air circulation
In mode
judgment
Stop
Auto
airflow
direction
Manual
airflow
direction
Auto
airflow
direction
Manual
airflow
direction
Area
A
Area
B
Area
C
Normal
Normal
(wind blowing)
Condensation
control
Norma
(wind blowing)
Condensation
control
Auto airflow direction
Manual airflow direction
Heating and heat-removing
control (obturation)
Running
Tubing
temperature
vertical vanes
1
2
3
4
57
fixed down
57
fixed down
cooling, soft dry
and blowing are the same
7
fixed up
2. airflow direction setting up
7
25
45
67
7
~41
14
~37
7
20
30
41
14
20
28
37
7
133
Horizontal position as the norm (EEPROM data)
104
CU-MP28DBH5/CU-MP50DBH5
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