– 49 –
Purifying operation
Filter lamp ON
Purifier power OFF
Purifier power OFF
Purifier power OFF
Error input
Total operation
time 1000H
Purifier power ON
after 10 minutes
from the error input.
Error input
Purifier power ON
1 minute or less
Filter lamp-OFF
continues.
Filter lamp ON
Purifier power OFF
1
2
3
Purifier power ON
NO
NO
NO
NO
YES
YES
YES
YES
Item
12. Air purifying control [Detection of abnormality]
13. Discharge temperature control
Operation flow and applicable data, etc.
1) Reset by RESET button.
2) Reset by RESET button or by the stop direction from
the remote controller.
∗
When the breaker is turned [ON] (In restart time after
power failure) or RESET button is pressed while the
FILTER indicator is turned on, the air purifier is not
turned on until the integrated operation time of the
indoor fan exceeds 1 hour after operation start
(It is nor the air purifier operation time).
It is the safety measures considering an incomplete
drain when electric dust collector has been cleaned
with water.
Description
1. Purpose
The air purifying control function is to
alert the user to trouble in the ionizing or
air purifying operation.
2. Description
Trouble is determined to have occurred
(indicated by the FILTER indicator) in the
following four cases.
1) When a count of 1000H has been
reached on the timer
2) When the panel switch has been set to
OFF by the opening of the air inlet
grile, etc.
3) When an abnormal discharge caused
by a symptom such as the build-up of
dirt has been detected while the air
purifier is ON
4) When the electric dust collector has
not been installed correctly
∗
Trouble case (2) or (3) is deemed to
have occurred when the action
concerned continues for more than
one second.
3. Operation
The sequence that FILTER indicator is
turned on are described in the left
flowchart.
1) When 1000H timer counts up, the
FILTER indicator keeps lighting even if
the operation is stopped by the remote
controller.
The timer is stored in memory of the
microcomputer, and the operation time
is cleared by filter RESET button on
the indoor unit or a power failure.
(FILTER indicator goes off.)
2) A trouble detected within 1 minute after
activation of the air is immediately
judged as an error and the FILTER
indicator goes on.
3) In case that 1 minute passed after
activation of the purifier, the purifier is
turned off while the PURE indicator
keeps ON. After 10 minutes passed,
restart the purifier and an error is
judged again.
1. Purpose
This function detects error on the refriger-
ating cycle or error on the compressor,
and performs protective control.
2. Operation
• Control of the compressor speed
The speed control is performed as
described in the left table based upon
the discharge temperature.
Td value
117°C
112°C
108°C
105°C
98°C
Control operation
Judges as an error and stops the compressor.
Reduce the compressor speed.
Reduce slowly compressor speed.
Keeps the compressor speed.
If the operation is performed with lower speed than one
commanded by the serial signal, speed is slowly raised
up to the commanded speed.
Operates with speed commanded by the serial signal.
