Daikin FTX25JVEA9 Service Manual page 220

Si18-201
*ex.) : Connect indoor units (2 rooms) to BP1.
Connect indoor units (3 rooms) to BP2.
Connect indoor units (2 rooms) to BP3.
OUTDOOR
UNIT
Switch Box
Service Monitor
Operating Test
Flash
Normal Transmission failure
INDOOR
UNIT 7
INDOOR
BP3
UNIT 6
INDOOR
UNIT 5
INDOOR
BP2
UNIT 4
INDOOR
UNIT 3
BP1
INDOOR
UNIT 2
INDOOR
UNIT 1
" " : BP unit unconnected, or transmission failure between outdoor
units and BP unit
"Numeral value" : The number of indoor units connected to each BP unit
The indoor units for 2 rooms are connected to BP3, but the display indicates
"BP unit unconnected." There is a transmission failure between outdoor units
and BP unit.
Check the connecting wiring in part
The numbers of indoor units connected to BP1 and BP3 do not agree with the
indication. There is transmission failures between BP units and indoor units.
Check the connecting wiring in part
* When checking the connecting wiring, make sure the wire numbering is
correct and that there are no numbers missing.
SERVICE MONITOR RAYOUT (ON PCB)
DIGITAL
LED A
SERVICE
LED1 LED2 LED3
MONITOR
ADDRESS
SERVICE MONITOR
SELECT SW
SW1 SW2
FORCED
OPERATION
SW3
MODE
SELECT SW
COOL HEAT
SW7
TEST
OPERATION
SW TEST JP
Operating Test
in the diagram below.
in the diagram below.
OUTDOOR UNIT
STATUS - NORMAL
LED
INITIALIZE
SW6 SW
SET
PUMP
SW5
DOWN
(UP)
SW
SW4
(DOWN)
PUMP
SILENT
DOWN
SELECT
SW
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