2-21.Table Of Self-Diagnostic Functions And Corrections (X, T, U Types); 2-22.Automatic Address Setting - Sanyo SPW-C256VH Technical Data & Service Manual

2-21. Table of Self-Diagnostic Functions and Corrections (X, T, U Types)
Wired remote
Indoor unit
controller
receiver lamp
display
Nothing is Nothing is
displayed displayed.
2 E01 displayed
Operating lamp
is blinking.
E02 displayed
E14 displayed
E04 displayed
Standby lamp is
E06 displayed
blinking.
E15 displayed
E16 displayed
Operation lamp
and Standby
P05 displayed
lamp are blinking
alternately.
P09 displayed
Timer lamp and
Standby lamp
are blinking
P12 displayed
alternately.
L02
displayed
Both the
L13
Operation lamp
and Standby
L07 displayed
lamp are blinking
simultaneously.
L10 displayed
2-22. Automatic Address Setting
2-22-1. Basic wiring diagram
• Link wiring
NOTE
• A terminal plug (black) is attached to each of the outdoor unit control PCBs. At only one outdoor unit,
leave the terminal plug short-circuit socket on the "Yes" side. At all the other outdoor units, change the
socket (from "Yes" to "No").
• A maximum of 8 indoor units can be connected to 1 remote controller for group control.
System address
rotary switch on
the outdoor unit
PCB
Outdoor unit
Terminal plate 1, 2
Terminal plate 1, 2
Indoor unit
Remote controller
Group connection and simultaneous operation multi
system
• Remote controller is not connected with indoor unit
correctly.
• Indoor unit power is not ON.
• Automatic address setting has not been completed.
• Inter-unit control wiring is cut or is not connected
correctly.
• Remote controller is not connected with indoor unit
correctly.
• Remote controller is not connected with indoor unit
correctly.
• Remote controller communication wiring is cut or is
not connected correctly.
• Indoor-outdoor inter-unit wiring is not connected
correctly.
• Inter-unit control wiring is cut or is not connected
correctly.
• Indoor unit capacity is too low.
• Indoor unit capacity is too high.
• Reversed phase at one of the outdoor units in the
group.
• Insuffi cient gas.
• Ceiling panel connector at one of the indoor units in
the group is not connected correctly.
• DC fan trouble at one of the indoor units in the group. Check whether the fan holder is loose.
• Indoor-outdoor unit type mismatch.
• Remote controller communication wiring is connected
to the indoor unit, however it is set for individual
operation.
• Check outdoor operation with separate maintenance-use remote controller.
Refrigerant system No. 1
(Change setting to "1")
No. 1
Inter-unit control
wiring
1-1 1-2
Remote controller
communication
wiring for group
control
Cause
Refrigerant system No. 2
(Change setting to "2")
Change the terminal
plug (black) short-
circuit socket
(2P DIP switch
(black) is attached
due to a type of
model.)
2-3
2-1 2-2
Remote controller
Fig. 2-17
2-18
Correction
Connect the remote controller correctly. Turn ON
the indoor unit power.
Check the remote controller and inter-unit control
wiring.
Perform automatic address setting (2-22).
Connect the remote controller correctly.
Check the remote controller communication wiring.
Perform automatic address setting again.
Connect the wiring correctly.
Refer to 2-22-1. Basic wiring diagram, and make
the correct setting.
Check that the total capacities of the indoor and
outdoor units are appropriate.
Reverse 2 phases of the outdoor unit 3-phase
power and connect them correctly.
Fill up the gas appropriately.
Connect the indoor unit ceiling panel connector
correctly.
Check the wiring between the DC fan and the
PCB.
Check that the indoor and outdoor unit types are
correct.
Perform automatic address setting (2-22).
Refrigerant system No. 3
(Change setting to "3")
Change the terminal plug (black)
short-circuit socket
(2P DIP switch (black) is
attached due to a type of model.)
Inter-unit control wiring
3-1 3-2 3-3
Remote controller
3-4