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32
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'19 • KX-T-336
6. Instruction of how to replace indoor unit control PCB
●
Read the "SAFETY PRECAUTIONS" carefully first of all and then strictly follow it during the replacement in order to protect yourself.
●
The precautionary items mentioned below are distinguished into two levels, WARNING and CAUTION.
Both mentions the important items to protect your health and safety so strictly follow them by any means.
WARNING Wrong installation would cause serious consequences such as injuries or death.
CAUTION Wrong installation might cause serious consequences depending on circumstances.
●
After completing the replacement, do commissioning to confirm there are no abnormalities.
●
Replacement should be performed by the specialist.
If you replace the PCB by yourself, it may lead to serious trouble such as electric shock or fire.
●
Replace the PCB correctly according to these instructions.
Improper replacement may cause electric shock or fire.
●
Shut off the power before electrical wiring work.
Replacement during the applying the current would cause the electric shock, unit failure or improper running. It would cause the damage of connected equipment such as fan motor,etc.
●
Fasten the wiring to the terminal securely, and hold the cable securely so as not to apply unexpected stress on the terminal.
Loose connections or hold could result in abnormal heat generation or fire.
●
Check the connection of wiring to PCB correctly before turning on the power, after replacement.
Defectiveness of replacement may cause electric shock or fire.
●
In connecting connector onto the PCB, connect not to deform the PCB. It may cause breakage or malfunction.
●
Insert connecter securely, and hook stopper. It may cause fire or improper running.
●
Bundle the cables together so as not to be pinched or be tensioned. It may cause malfunction or electric shock for disconnection or deformation.
①
Check the model type
②Set to an appropriate address and function using switch on PCB.
Select the same setting with the removed PCB.
Applied differently depending on the model set.
For more information please see also the back side.
③
Set to an appropriate capacity using the model selector switch(SW6).
Select the same capacity with the PCB removed from the unit.
④
Replace the PCB
1. Fix the PCB so as not to pitch the cords.
2. Connect connectors to the PCB. Connect a cable connector with the PCB connector of the same color.
3.Do not pass CPU surrounding about wirings.
⑤
Control PCB
Parts mounting are different by the kind of PCB.
PCH012D015A
SAFETY PRECAUTIONS
WARNING
CAUTION
SW6
ON
1 2 3 4
Example setting for 56
SW5
SW7
CN
Ｅ（
White
）
RAM checker
CNG
（
Blue
）
C
N
T2
(R
ed
）
Br
an
ch
in
g
co
nt
ro
lle
r
CNK1(White
）
Superlink
CNK2(Black
）
Superlink(spare)
CND(Black
）
Free cooling
CNA(Red
）
Expansion valve
C
N
F
(Y
el
lo
w
）
Th
er
m
ist
or
(A
ir
sup
pl
y)
SW6
CNW1
（
White
）
Primary transformer
CNM3
（
White
）
Fan motor
CNJ2(Blue
）
CNR(White
）
Drain pump
CNJ(White)
C
N
I(B
lu
e
）
Fl
oa
t S
W
C
N
S(
Bl
ue
）
C
N
V(
Bl
ack
）
CN
H
(B
la
ck
）
Th
er
m
ist
or
(R
et
ur
n
ai
r)
C
N
T(
Bl
ue
）
O
pt
io
n
C
N
O
(R
ed
）
H
ea
te
r
C
N
Q
(W
hi
te
)
C
N
Z(
W
hi
te
)
H
A
CNB(White
）
CNW2(Black
）
Remote control
Secondary transformer
Part number
CNW0(Red
）
Power source
Address setting
SW1,2(Blue): Indoor unit
SW3,4(Green) Outdoor unit
C
N
N
(Y
el
lo
w
）
SW6
-1
-2
-3
-4
SW6
-1
-2
-3
-4
SW6
-1
-2
-3
-4
22
OFF
ON
OFF
OFF
OFF
71
OFF
ON
ON
OFF
160
ON
OFF
ON
ON
28
OFF
ON
OFF
OFF
80
OFF
224
OFF
ON
ON
ON
36
OFF
OFF
OFF
90
OFF
OFF
280
ON
ON
ON
ON
45
OFF
OFF
ON
ON
ON
OFF
112
OFF
ON
ON
ON
ON
ON
ON
56
OFF
OFF
140
OFF
OFF
OFF
ON
ON
OFF
Setting according to the model *1
I/U FAN
LOUVER SW
SAF-DXP
、
SAF-DX-6
EEVKIT3-C
EEVKIT6-E-C
HI-MID
Applicable model
HI
INVALID
1 There is a unit having plural applicable PCB depending on a model.
2 Set the function setting corresponding the spare PCB
3 Do "Setting according to the model *1" refer to "
⑥
Function setting
of wired remote control" after turning on the power source when
