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Indoor Unit
Points to Note When Replacing Indoor P.C. Board Assembly
The electrically erasable programmable read-only memory (hereinafter EEPROM, IC10) mounted on an indoor
P.C. board holds important setting data, including the type and capacity codes intrinsic to the model (set at the
factory), as well as the line/indoor/group addresses, high ceiling adjustment setting and the like (during installation,
either automatically or manually). Proceed with the replacement of an indoor P.C. board assembly in accordance
with the procedure described below.
After completion of the work, check the settings again, including the indoor unit No. and group header/follower
designation, and confirm the integrity of the refrigerating cycle by conducting a test operation, etc.
<Replacement procedure>
Method 1
If it is possible to turn on the indoor unit and read the setting data from the P.C. board to be replaced via a wired
remote controller -
Reading EEPROM data: Procedure 1
Replacing P.C. board and turning on power: Procedure 2
Writing EEPROM data in new EEPROM: Procedure 3
Resetting power supply (applicable to all indoor units connected to remote controller in case of group operation)
e
p
y
t
l
e
d
o
M
e
d
o
c
t
r
a
P
P.C. board type
431-6V-379
MMU-AP
0
7
5
1
-
C
C
M
s
e
i
r
e
s
H
2
431-6V-437
MMU-AP
2WH series
MMU-AP
1MH series
MMU-AP
2SH series
MMC-AP
1H series
MMD-AP
1SPH/SH series
MCC-1402
431-6V-325
MMD-AP
2
0
4
1
-
C
C
M
s
e
i
r
e
s
H
B
1
431-6V-326
MMU-AP
1WH series
MMU-AP
1YH series
MMD-AP
1H series
MMF-AP
1H series
MML-AP
1H series
MML-AP
1BH series
MCC-1403
431-6V-343
MMD-AP
3
0
4
1
-
C
C
M
s
e
i
r
e
s
E
F
H
1
13
P.C. BOARD EXCHANGE PROCEDURES
13-1. Replacement of Indoor P.C. Boards
Содержание MMY-MAP0804HT7JP
Страница 23: ... 22 1 Wiring Diagrams 1 1 Outdoor Unit Models MMY MAP0804 MAP1004 and MAP1204 ...
Страница 24: ... 23 Models MMY MAP1404 and MAP1604 ...
Страница 35: ... 34 1 2 10 Slim Duct Type AP024 AP027 Models MMD AP0244SPH MMD AP0274SPH ...
Страница 38: ... 37 1 2 13 High Wall Type 3 series Models MMK AP0073H AP0093H AP0123H AP0153H AP0183H AP0243H ...
Страница 52: ... 51 2 5 Parts Layout in Outdoor Unit 8 10 12HP Model MMY MAP0804 MAP1004 MAP1204 ...
Страница 53: ... 52 14 16HP Model MMY MAP1404 MAP1604 ...
Страница 57: ... 56 2 7 2 Inverter P C board for compressor MCC 1596 A3 IPDU ...
Страница 323: ......