Sanyo Big PACi 18 Series - X, T, U, D Types (for Link Wiring) Caution

2
2-16
2-16-6. Indoor unit address setting
If multiple single-type units are installed in the same
room the addresses can be set to prevent signal inter-
ference. By coordinating the numbers of the indoor
unit (wireless PCB) and remote controller addresses,
up to 6 indoor units can be controlled independently
by their respective remote controllers.
Independent control is not possible when a simultane-
ousoperation multi system is used.
Checking the addresses
Press the remote controller address button to display
the current address on the remote controller display.
If this address matches the indoor unit (wireless PCB)
address, the buzzer will sound.
(If ALL is set, the buzzer will always sound.)
If ALL is set, operation is possible regardless of the
indoor unit address.
Point the remote controller toward the receiver (indoor
unit) that you wish to operate, and send the operation
signal.
Remote controller address setting
Press and hold the address button for 4 seconds or
longer to display the address on the remote controller
display. The current address starts blinking.
The address changes each time the remote controller
address button is pressed: ALL 1 2 3 ... 6.
Set the address to match the remote controller you
wish to operate.
When the SET button is pressed, the address stops
blinking and displays for 5 seconds. The buzzer sou-
nds if the address matches the indoor unit.
Remote
controller
address
display
ALL 1 2 3
Indoor unit
PCB address,
DIP switch
123
6 5 4
3 2 1
ON
ON
OFF
Address
123
6 5 4
3 2 1
ON
ON
OFF
Address
123
6 5 4
3 2 1
ON
ON
OFF
Address
123
6 5 4
3 2 1
ON
ON
OFF
Address
For address switches 1, 2, and 3, turn DIP switch 1 to OFF.
For address switches 4, 5, and 6, turn DIP switch 1 to ON.
123
ON
Fig. 2-14
X, T, U, D Types (for Link Wiring)
2-17. 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 pro-
cedure when using the wired remote controller.
If link wiring is used, set the outdoor unit system add-
ress 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 sub-
sequent maintenance. Refer to 2-22-2, -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 connect-
ed 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 (indoor: blue, OC) (out-
door: blue, serial 1) that are connected to the PCB,
and replace them with 2P connectors (indoor: brown,
EMG) (outdoor: brown, serial 2).
If operation is still not possible after changing the
brown connectors, try cutting the varistor (black).
(Be sure to turn the power OFF before performing this
work.)
8 – 10 HP
LED1
FUSE (0.5A, F500)
OC (CN500, BLU)
MOV2
(CN301, BLK)
MOV1
(CN300, WHT)
EMG (CN502, BRN)
SILENT (CN037, WHT)
PUMP DOWN (CN048)
TEMINAL (CN205, BLK)
R.C.ADD. Rotary switch
C2 (CN020, WHT)
C1 (CN021, WHT)
TEST (CN033, RED)
TD (CN024, BLK)
TO (CN023, BLK)
TS (CN022, RED)
63PH (CN027, WHT)
EXCT
(CN030, RED)
RC P
(CN039, RED)
IC002
CTL2
(CN202, GRN)
CTL1
(CN203, GRN)
FUSE
(6.3A, F101)
N.P.CHECK
(CN046, RED)
LED2
MODE (CN038)
D115
IC001
R.C.ADD. DIP switch
A.ADD (CN047)
C-CHK (CN035)
EEPROM
LED (D041)
Fig. 2-15
Address Address Address
Address
Address switch
Test
Remote controller
Sub On
Main Off
Indoor unit control PCB
2 HP
DIP switch
(SW101)
Address switch
(SW102)
Indoor unit control PCB
3 HP
DIP switch
(SW101)
Address switch
(SW102)
CHK (2P plug)
2P connector (brown)
2P connector (blue)
Varistor (black)
VA100
Fuse 0.5A
Indoor unit control PCB
Ourdoor unit control PCB
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