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4-50
Service Manual
MAINTENANCE
TURN OFF all power source switches.
4.1.20.2 Removing Electrical Components
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(1) Remove all the connectors for wiring connected to the change-over box PCB.
(2) Remove the communication cables connected to the change-over box PCB. Do not touch the
electrical components on the change-over box PCBs during the work. Otherwise, the change-over box
PCB may be damaged.
(3) Hold the convex part of the four holders securing the change-over box PCB with a long-nose pliers
and pull it out to remove.
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(1) Remove all the wirings to the electrical components.
(2) Remove the screws securing the electrical components.
NOTE:
When reassembling the electrical components, match the terminal numbers with the mark band numbers.
Match the colors of the connectors on the change-over box PCB with the colors of the connectors for
wiring. If they are incorrectly connected, a malfunction may occur or the electrical components may be
damaged.
Tool
Phillips Screwdriver,
Long-Nose Pliers, Wire Cutter
Holder
Change-Over Box PCB
Four Securing Holders
for Change-Over Box PCB
L2
N
L1
3301
+
103
103
103
103
103
103
103
103
103
103
103
102
4701
2001
151
WY
NB
ON
2
1
ON
2
1
ON
1 2 3 4 5 6
+
+
+
+
+
+
+
+
+
+
+
817
TR1
IC1
IC301
IC101
IC14
IC13
IC12
IC11
CN4
CN3
CN2
CN1
MVS1
MVD1
MVD2
MVS2
LED2
LED4
LED5
LED6
LED7
R42
R43
R304
R5
R6
R29
R28
R27
R26
R105
R104
R102
R224
R225
R226
R33
IC8
C71
C21
C225
C114
C235
C83
C28
Q301
Q302
DSW301
C315
C316
C101
C116
C115
C25
C26
OSC
ZD302
ZD304
LED3
LED1
DSW101
D111
D112
DSW1
EF301
EF101
Z101
Z102
Z302
Z301
TP
FUNC
IC2
R206
R203
R110
TB1
LED201
CN29
CN1
1
REG1
C22
ZD220
C233
L201
C231
D212
IC201
IC202
Z201
R201
C207
C206
C204
C205
C208
D201
DM201
C201
EFS1
EFR1
PCN1
C203
L1
C202
Z2
Z1
DSA
C212
: Four Securing Screws (M4)
: Two Securing Screws (M4)
Terminal Block (TB1)
: Four Securing Screws (M4)
Содержание YVAHP072B31S
Страница 2: ......
Страница 10: ...viii Service Manual ...
Страница 16: ......
Страница 17: ...Service Manual 1 1 INSTALLATION 1 Installation ...
Страница 559: ...Service Manual 1 543 INSTALLATION 7 7RXFK DFN WR QLVK WKLV VHWWLQJ The screen returns to the Service Menu screen 7 ...
Страница 577: ...Service Manual 1 561 INSTALLATION 9 Touch Back to return to the Service Menu screen 9 ...
Страница 920: ......
Страница 921: ...Service Manual 2 1 OPERATION 2 Operation ...
Страница 983: ...Service Manual 2 63 OPERATION Clipped Ceiling Type Grille for Front Discharge 2SWLRQDO Decorative Panel 2SWLRQDO ...
Страница 1184: ...2 264 Service Manual OPERATION 7 Touch on Return to Group sel to return to Setting Group Selection 7 ...
Страница 1315: ...Service Manual 3 1 TROUBLESHOOTING 3 Troubleshooting ...
Страница 1425: ...Service Manual 3 111 TROUBLESHOOTING Surge Absorber SA Surge Absorber SA Surge Absorber SA 3RVLWLRQ RI 6XUJH EVRUEHU 9 9 1 1 1 ...
Страница 1461: ...Service Manual 4 1 MAINTENANCE 4 Maintenance ...
Страница 1657: ...Service Manual 5 1 EXTERNAL INPUT OUTPUT AND FUNCTION SETTING 5 External Input Output and Function Setting ...
Страница 1728: ......
Страница 1729: ...Service Manual 6 1 FIELD WORK INSTRUCTIONS 6 Field Work Instructions ...
Страница 1738: ...6 10 Service Manual FIELD WORK INSTRUCTIONS 6 8 Mollier Chart for R410A ft 3 l b ...
Страница 1739: ...SERVICE PARTS LIST Service Manual 7 1 7 Service Parts List ...
Страница 1795: ......
Страница 1796: ... 2015 Johnson Controls Inc SM 15001 ...