SW2
ON
1234
SW2
ON
1234
SW2
ON
1234
SW2
ON
1234
SW2
ON
1234
SW2
ON
1234
SW2
ON
1234
SW2
ON
1234
SW 2 Difinition
00 means shutting down the unit
to “stop cold air” at 15
℃
00 means the time of stopping
TERMAL fan is 4 mintue
●
●
●
13
.
TROUBLE SHOOTING
18
installation manual
SW5
ON
1 2
SW5
ON
1 2
SW5
ON
1 2
SW5
ON
1 2
SW7
ON
1 2
SW7
ON
1 2
ON
ON
SW 5 Difinition
SW7 Difinition
0/1 Difinition
SW6
ON
1 2 3
SW6
ON
1 2 3
SW6
ON
1 2 3
00 means temp. compensation
value is 6
℃
under heat mode
1 means old display panel
1 means auto air blow under
auto mode
non-auto mode
reserved
standard
configuration
last unit of
the network
means 0
means 1
For 200T1 unit, two mainboards in the electric control
should set the code ENC1 to 8;
For 250T1 unit, a mainboard in the electric control should
set the code ENC1 to 8; the other one should set the code
ENC1 to 9;
For 280T1 unit, two mainboards in the electric control
should set the code to 9.
For the same indoor unit, every mainboard must be differ-
ent indoor unit addresses and network addresses.
When using central controller to control the indoor unit,
please pay attention to the address setting, as the 220T1,
250T1 and 280T1 units have two or more mainboards. We
suggest setting the neighbor address for the mainboards
in the same indoor unit. When using a central controller for
controlling, mainboards in the same unit must be opened
and closed at the same time, for avoiding the unexpected
incident.
Table.13-1
NO. Type
Contents
LED Lamp flash
Remarks
The evaporator
sensor check
point is abnoma
or room temp.
sensor is
abnormal.
Indoor/outdoor unit
communication
is abnormal.
Condenser sensor
check point is
abnormal or
outdoor temp.
sensor is abnomal
Water level switch
is abnormal
Mode conflict
Run lamp
flashes
at 2.5Hz.
The timer lamp
flashes at
2.5Hz.
All the indoor
alarm lamps
flash at 0.5Hz.
Alarm lamp
flashes
at 2.5Hz.
Defrost lamp
flashes at
2.5Hz.
After the malfunctions
disappear, it restores
automatically.
After the malfunctions
disappear, it restores
automatically.
After the malfunctions
disappear, it restores
automatically.
If the malfunctions
can’t be solved in
three min. all the
indoor alarm lamps
flash at 0.5Hz.Turn
off the power to restore.
When the indoor unit
turns to heating mode
or is turned off, the
alarm will disappear.
1
2
3
4
5
Malfun-
ction
Malfun-
ction
Malfun-
ction
Malfun-
ction
Alarm
7
6
Alarm
EPPROM error
The indoor unit
without an add-
ress when it is
first time electri-
fied
Malfun-
ction
Defrost lamp
flashes at
0.5Hz.
After the malfunctions
disappear, it restores
automatically.
Timer lamp
and run lamp
flash at 2.5Hz
together.
After the malfunctions
disappear, it restores
automatically.
SW6 Difinition
CAUTION
Please adjust the code ENC1 to the suitable position (both
system A and B should be adjusted for 200T1, 250T1 and
280T1 indoor unit).
01 means shutting down the unit
to “stop cold air” at 20
℃
10 means shutting down the unit
to “stop cold air” at 24
℃
11 means shutting down the unit
to “stop cold air” at 26
℃
01 means the time of stopping
TERMAL fan is 8 mintue
10 means the time of stopping
TERMAL fan is 12 mintue
11 means the time of stopping
TERMAL fan is 16 mintue
01 means temp. compensation
value is 2
℃
under heat mode
10 means temp. compensation
value is 4
℃
under heat mode
11 means temp. compensation
value is 8
℃
under heat mode
0 means new display panel
0 means auto air blow under
