*
*
;
;%
;%
;$
;
;#
12
13
14
Remoter sensed
humidity (optional).
Microcomputer output/ input display
Indoor unit
microcomputer
input/ output.
Outdoor unit
microcomputer
input/ output.
Shutdown cause display
Cause for shutdown
Abnormal occurrences counter
Abnormal occurrence
times
Indoor unit momentary
power failure occurrence
times.
Remoter and indoor unit
transmission error
occurrence times
Frequency converter
abnormal occurrence
times
Automatic louver state display
Louver sensor
1H[WSDJH
(Tip1): Term definition
Temperature controlled startup: The indoor unit requires the running of the
compressor.
Temperature controlled shutdown: The indoor unit does not require the running
of the compressor.
(Tip2): Even if the poweroff is caused by the “AlarmABNML”, “02” will not always be
displayed.
(Tip3): If the communication between the frequency converter PCB and control PCB
cannot be carried out within 30 seconds, the outdoor unit will be closed down.
In this case, the shutdown is the cause for d1-05 and the alarm code “04” may
be displayed.
(Tip4): If the communication between the indoor unit and outdoor unit cannot be
carried out within 3 minutes, the outdoor unit will be closed down. In this case,
the shutdown is the cause for d1-06 and the alarm code “03” may also be
displayed.
(Tip5): “20” will be displayed in different modes of the indoor units.
It can be numbered to 99.
If over 99, “99” will always be displayed.
(Tip1): If the communication error lasts for 3 minutes, the occurrence times will be
added with 1.
(Tip2): The reserved parameters can be removed with the method indicated in
13.3.1
“
Self-Checking of PCBs using Remote Control Switch
”.
00
Stop the operation and turn off the power
01
Temperature control switch (Tip1)
02
Alarm (Tip2)
03
Freeze protection, overheat protection
05
Outdoor unit momentary power failure, reset (Tip3)
06
Indoor unit momentary power failure, reset (Tip4)
07
Cease of cooling operation due to low outdoor temperature and cease of
heating operation due to high outdoor temperature
09
It needs four-way valves to shift to the shutdown
10
It needs forced shutdown.
11
Restart due to the reduced pressure ratio
12
Restart due to the increased low pressure
13
Restart due to the increased high pressure
15
Restart due to the excessively high exhaust temperature and low air inlet pressure.
16
Restart due to the reduced exhaust superheat
17
Restart due to the tripping of the frequency converter
18
Restart due to the reduced voltage
19
Expansion valve opening change protection
20
Indoor unit run mode shift (Tip5)
21
Forced temperature controlled shutdown
22
Forced temperature controlled shutdown (Preheating)
26
Insufficient high pressure, restart
Heating temperature
control starts
Cooling temperature
control starts
ABNML
RUN
Dark
Dark
Outdoor fan
Symbols with the letter “Y” are PCB relays.
bC
00
C1
C2
d1
E1
E2
E3
E4
F1
00
00
00
00
01
01
245
