Xm Type (For Link Wiring) - Sanyo SPW-C256VH Technical Data & Service Manual

XM Type (for Link Wiring)

2-27. Caution
This unit may be used in a single-type refrigerant system where 1 outdoor unit is connected to 1 indoor
unit, and also in a system where 1 outdoor unit is connected to multiple indoor units
(maximum 4 < Double-Twin >).
This test run explanation describes primarily the procedure when using the wired remote controller.
If link wiring is used, set the outdoor unit system address to allow the combination of indoor and outdoor units to
be identified. At the same time, indicate the indoor-outdoor unit combination number in a location where it can
be checked easily (near the indoor unit nameplates). (This number will be required for subsequent maintenance.
Refer to 2-32-2, -3, -4.)
Request that the customer be present when the test run is performed. At this time, explain the operation manual
and have the customer perform the actual steps.
Be sure to pass the manuals and warranty certificate to the customer.
Check that the 220 – 240 V AC wiring is not connected to the inter-unit control wiring connector terminal.
If 220 – 240 V AC is accidentally applied, the indoor or outdoor unit control PCB fuse will blow in order to protect
the PCB. Correct the wiring connections, then disconnect the 2P connectors (blue, OC) (outdoor : blue, serial 1)
that are connected to the PCB, and replace them with 2P connectors (brown, EMG) (outdoor : brown, serial 2).
(Refer to the figure 2-26.)
If operation is still not possible after changing the brown connectors, cut the JP003 for the indoor unit, and cut
the varistor (black) for the outdoor unit. (Be sure to turn the power OFF before performing this work.)
Indoor unit control PCB
Power PCB
Outdoor unit control PCB
SPW-C256/366VH
HIC
Temperature
sensor
Up side
C2 (CN020, WHT)
MOV (CN25, WHT)
Bottom
side
SPW-C486VH
F101
MOV
(CN025, WHT)
TD (CN024, BLK)
TO (CN023, BLK)
TS (CN022, RED)
Control PCB
Fuse 5A
AUTO ADD (CN041)
System address
Rotary switch (S002)
TERMINAL (S010)
JP007
System address
DIP switch (S003)
RC-P (CN032,RED)
LED1
LED2
PUMP DOWN (CN042)
EEPROM (IC006)
C1 (CN021, BLK)
TO (CN022, WHT)
TD, TS (CN023, WHT)
EXCT (CN026, RED)
SILENT (CN028, WHT)
RC-P (CN032, RED)
FAN (CN030, WHT)
ROM (CN012, WHT)
OC (CN013, BLU)
EMG (CN014, BRN)
20S (CN09, WHT)
FUSE (25A, F003)
Varistor (VA002)
JP007
Varistor (VA001)
Terminal plug (CN015, BLK)
EMG (CN014, BRN)
OC (CN013, BLU)
ROM (CN012, WHT)
EEPROM (IC007)
PRY (CN110, YEL)
C2 (CN020, WHT)
C1 (CN021, WHT)
2P connector (brown)
CHK(2P plug)
JP003
2P connector (b lue)
SPW-C256/366VH8
System address rotary switch
SPW-C486/606VH8
2-27
System address 10s digit and 20s digit
DIP switch
Automatic address
button (black)
Terminal plug (black)
Terminal plug (CN015, BLK)
OC (CN013, BLU)
EMG (CN014, BRN)
JP007
ROM (CN012, WHT)
EEPROM (IC007)
TD (CN024, BLK)
TO (CN023, BLK)
MOV(CN025, WHT)
C2 (CN020, WHT)
C1 (CN021, WHT)
TS (CN022, RED)
Fig. 2-26
2