20
AE-X4M30PU
*Remark
The malfunction No. is calculated using the following way.
Example)
Indoor unit lamp
→
Lamp
Calculation
Main
Sub
16 8
4
2
1
Timer (orange)
O O O O O
Operation (green)
O
O
4+1=5
5
Plasmacluster (blue)
O
2
2
100
80
60
40
20
0
-10
0
10
20
30
40
ºC
Resistance
Thermistor
Room temperature
Heat exchange
Pipe temperature
Color
Yellow
Orange
Black
Room temperature
thermistor TH1 (CN2 3 - 4 )
Heat exchange
thermistor TH2 (CN2 1 - 2 )
Pipe temperature
thermistor TH3 (CN2 5 - 6 )
Tester
CN2
1
6
Signal
TH1
TH2
TH3
Figure 1 Temperature properties of indoor thermistors
k
Ω
To measure the resistance, first remove
the soldering as shown at right.
Room temperature
thermistor TH1 (Yellow)
77ºF(25ºC) resistance 10 kΩ
Heat exchange thermistor
TH2 (Orange), TH3 (Black)
77ºF(25ºC) resistance 4.431 kΩ
CAUTION: When attaching or removing the board
When operating only the outdoor unit (cooling 40 Hz fixed mode) To make only the outdoor unit run in cooling
mode, and apply a voltage of 230V AC to L1 and L2 on the terminal board and push the pump down switch (SW1).
(Avoid operating the outdoor unit alone for long periods of time.)
from Main PWB
MRY1 OUT (Black)
from Main PWB
BCN13
from Main PWB BT12 (Blue)
from Main PWB BT11 (Yellow)
from Main PWB T15 (Gray)
from PFC coil
from PFC coil
Summary of Contents for AE-X4M30PU
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