Code
No.
Contents of data display Data display range
Minimum
unit
Remarks
P37
Operation permission/
prohibition setting
P38
Forced cooling/
heating operation setting
P39 VTCC setting
*2 Compressor stop cause
[definition of signal]
*1 Signal definition
[C49] : Cooling sub-cooling = [C46]-[C14]
[C50] : Suction superheat = [C16]-[C47]
[C51] : Sub-cooling coil superheat = [C15]-[C47]
[C52] : Discharge superheat = [C07]-[C46]
It shows the latest compressor anomalous stop cause
Compressor stop cause No.
At power on 0
Sensor disconnection
and/or short-circuit
Ambient air temperature 1
Outdoor heat exchanger temperture 1 2
Outdoor heat exchanger temperture 2 3
Discharge pipe temperature sensor (CM1) 4
Suction pipe temperature sensor 5
Sub-cooling temperature sensor (liquid side) 6
Sub-cooling temperature sensor (gas side) 7
Under-dome temperature sensor 8
Power transistor temperature sensor 9
Active filter temperature sensor 10
High pressure sensor 11
Low pressure sensor 12
Anomaly detection
HP anomaly 20
LP anomaly 21
Td1 anomaly 22
FMo1 anomaly 23
FMo2 anomaly 24
Inverter 1 current cut 25
Inverter 1 startup failure 26
Inverter 1 communication error 27
Inverter 1 anomalous compressor induced voltage and torque 28
Inverter 1 power tansistor overheat 29
Inverter 1 rotor lock 30
Liquid flooding anomaly 31
Stop by restriction
Outdoor operation mode heating/cooling switching 40
Heating overload protection 41
0 : (Factory default)
0,1
0 : (Factory default)
0,1
0 : (Factory default)
0,1
P54 EEVKIT multi-setting
P75
Pump down operation
by external input setting
P82 Indoor unit error output setting
0 : (Factory default)
0,1
0 : (Factory default)
0,1
0 : (Factory default)
0,1
–
Refer to (B)(1)
–
Refer to (B)(6)
–
Refer to (B)(11)
–
0 : Invalid
1 : Valid
–
Refer to (B)(9)
–
Refer to (B)(4)
(c) Saving of operation data
Mainly for investigating causes of market claims, operation data are always saved in memory. If any trouble occurs, the
data writing is stopped and only the operation data prior to the time when the trouble occurs are recorded. These data can
be loaded to a PC via RS-232C connector of PCB and utilized for identifying causes.
(i) Operation data for a period of 30 minutes prior to the present operation are saved and updated continuously.
(ii) If an anomalous stop occurs, the data are not updated any more.
(iii) Data are written in based on 1 minute sampling interval and next data will be transmitted to PC upon demand.
Data Data range Example
Software version Ascii 15 bytes KD3C218######## (# : NULL)
PID (Program ID) Ascii 2 bytes 5D
Outdoor unit capacity Ascii 3 bytes As listed blow
Power source frequency Ascii 2 bytes 60
Outdoor address Ascii 2 bytes 00 - 3F
Indoor address × 16 units Ascii 2 bytes × 16 units 40 - 7F
Indoor capacity × 16 units Ascii 3 bytes × 16 units 022 - 280
Outdoor unit composition Outdoor unit capacity data Remark
Single type Example: 24HP - [S24]
S: Display with Horse Power of single type or
single use of combination type
Master unit of combination
type
Example: 46HP - [S46]
S: Display with Horse Power of master unit of
combination type
Slave unit of combination
type
Example: 20HP - [C20]
C: Display with Horse Power of slave unit of
combination type
(iv) Error retenti
<Indoor unit indicate data>
on and monitoring data
Code
No.
Content
Write-in content
Data write-in
range
Number of
bytes
Write-in unit
Record data
0
100
Dehumidifying stop 0-speed
110
Dehumidifying operation 0-speed
Air inlet temp.
Heat exchanger temp. 1
00
01
02
03
04
05
06
10 - 52
-
19 - 71
0 - 500
1
1
1
1
2
1
2
Indoor unit 1 Thi-A
Indoor unit 1 Thi-R1
Indoor unit 1 Thi-R2
Indoor unit 1 Thi-R3
Indoor unit 1 EEV
Indoor unit I setting temperature
Indoor unit I Operation mode/Air capacity
-
19 - 71
-
19 - 71
1 pulse
0 - 470
0 - 127
−
Heat exchanger temp. 2
Heat exchanger temp. 3
Not used (Data not received)
111
112
Dehumidifying operation 2-speed
113
Dehumidifying operation 3-speed
Dehumidifying operation 1-speed
114
115
Dehumidifying operation 5-speed
116
Dehumidifying operation 6-speed
Dehumidifying operation 4-speed
200
210
Cooling operation 0-speed
211
Cooling operation 1-speed
Cooling stop 0-speed
212
213
Cooling operation 3-speed
214
Cooling operation 4-speed
Cooling operation 2-speed
215
216
Cooling operation 6-speed
300
Fan stop 0-speed
Cooling operation 5-speed
310
311
Fan operation 1-speed
312
Fan operation 2-speed
Fan operation 0-speed
313
314
Fan operation 4-speed
315
Fan operation 5-speed
Fan operation 3-speed
316
400
Heating stop 0-speed
410
Heating operation 0-speed
Fan operation 6-speed
1°C
1°C
1°C
1°C
0.5°C
-
205
-
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