48
Electric wiring and the application
SW9 SW10 SW11
Function
Operation
0
10
2
Wrong wiring
inspection in cooling
Press SW2(UP) for 2 secs continuously, display
1111 and start up; digital tube counts down
judging time by second; after time arrives,
display the result: "00.00" shows the result
is in conformity with the actual connection;
"01.05" shows one outdoor and 5 indoors are
abnormal, to check the abnormal units by digital
tube (indoor: X_X_13, outdoor X_0_0); Press
SW1(DN) for 2 secs continuously, display 0000
and stop.
0
11
2
Wrong wiring
inspection in heating
0
12
2
Indoor expansion
valve open fully
Press SW2(UP) for 2 secs continuously, display
1111 and indoor valves open fully for 2 minutes,
then indoor valves close automatically.
0
13
2
All indoor units running
in cooling
Press SW2(UP) for 2 secs continuously, display
1111 and start up;
Press SW1(DN) for 2 secs continuously, display
0000 and stop.
0
14
2
All indoor units running
in heating
Press SW2(UP) for 2 secs continuously, display
1111 and start up;
Press SW1(DN) for 2 secs continuously, display
0000 and stop.
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 α
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
Inlet water temperature
7-45°C
1: limit
0: unlimited
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
