243
SW9 SW10 SW11 Function Operation
0 15 2
Cancel all manual
controls(running type)
Press SW2(UP) for 2 secs continuously, display 1111 and start up; Press SW1(DN)
for 2 secs continuously, display 0000 and stop. Cancel items: wrong wiring
inspection in cooling/heating mode; indoor unit running/stop totally; compulsory
operation; rated operation, etc.
15 0 2 BM1 and BM2 setting state
Hexadecimal display. BM1: represented by LD1 and LD2; BM2: represented by LD3
and LD4.
15 1 2 BM3 and BM4 setting state
Hexadecimal display. BM3: represented by LD1 and LD2; BM4: represented by LD3
and LD4;
15 2 2 Capacity correction class
O shows short piping length; 1 shows medium piping length; 3 shows long piping
length;
15 3 2 Defrosting compensation 10、8、6
15 4 2 BM5 setting state (reserved) Hexadecimal display. Represented by LD3 and LD4;
15 5 2 Volume overload check
135: limited
0: no limit
15 6 2
Ambient temp. over 25
degree (heating restriction
temp.)
25、 limited
0: no limit
15 7 2 Silent running setting
0: without silent running
1: with silent running
15 8 2
Snow prevention running
setting
0: without snow prevention running
1: with snow prevention running
15 9 2
When master unit is
operating in heating mode,
the fan speed setting of
Thermo OFF slave units
0: not running
1: running
15 10 2
Drop selection between
outdoor and indoor
0: no drop
1: with drop
15 11 2
Setting of outdoor mode and
indoor priority (not available
for 3 pipes mode)
LD1: outdoor mode 0- normal, C- cooling only, H- heating only, U-VIP
LD2、“-”
LD3/LD4、indoor priority setting (valid when outdoor mode is normal or VIP)
00--First in first out
01--Last in first out
02--Cooling priority
03--Heating priority
04--Majority priority
Eg, “0-03”: heating priority
“C---”: cooling only
15 12 2
Power supply check
50Hz/60Hz setting
50: 50Hz
60: 60Hz
15 13 2 Inverter board selection
0: self-made
1: APY
15 14 2 Outdoor model setting
0- 3 pipes model
1-MX6-S model
2- Water Cooled VRF
15 15 2 Reserved
1 0 2
Communication baud rate of
indoor and outdoor units
9600bps
1 1 2
1 round circulating VB and
correct communicating qty of
indoor units
LD1/ LD2
：
qty of VB (3 pipes model)
LD3/ LD4
：
qty of indoor units
Eg, 0206 represents 2 VB and 6 indoor units
1 2 2
2 MSB
：
percentage of
inconsistent qty between
indoor and E2
2 LSB: qty of actual indoors
Eg,0522: qty of actual indoors is 22; communicating inconsistent percentage
between indoor and E2 is 5%
1 3 2
Qty of indoors which can
communicate with VB
(indoors failed 5 successive
rounds are excluded)
LD1/ LD2
：
qty of VB (3 pipes model)
LD3/ LD4: qty of indoor units
Eg: 0206 represents 2 VB and 6 indoor units.
1 4-15 2 Reserved
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