34
2. Valve box parameters observation
The parameters of indoor unit address 1-64 can be observed: SW9 and SW10 are valve box
numbers; the range of SW11 is 3-14, regarding observed valve box parameters.
Electric wiring and the application
SW9 SW10 System address
7
0-15
Unit 1-16
（
valve box PCB address dial-up 0#-15#
）
8
Unit 17-32
（
valve box PCB address dial-up 16#-31#
）
9
Unit 33-48
（
valve box PCB address dial-up 32#-47#
）
10
Unit 49-64
（
valve box PCB address dial-up 48#-63#
）
SW11
Function
Display with digital tube LED1
～
4
3
Valve box program version
If communication is normal, show the indoor unit
program version (one decimal). If communication stops,
normally show “0000”
（
failing communication for 5
consecutive rounds
）
. If communication has been
abnormal, show “----”.
For example,“F0.1” means valve box version is V0.1
4
Valve box mode and failure
LED1: show valve box mode O
：
Stop C
：
Cooling H
：
Heating
LED2: show“-”
LED3-4: show valve box failure code, if there is no fault,
show 0.
For example,“H-01”
，
means the valve box current
mode is heating; if there is failure, show code “01”.
5
Solenoid valve status of valve
box
LED1
：
BS4WV
：
1 ON 0 OFF――Far left
LED2
：
BSSV1
：
1 ON 0 OFF
LED3
：
BSSV2
：
1 ON 0 OFF
LED4
：
BSSV3
：
1 ON 0 OFF
6
Total indoor units connected
to the valve box
Note: 8 units as maximum
7
Address of 1st indoor unit
connected to valve box
“----”means be connected failed.
8
Address of 2nd indoor unit
connected to valve box
“----”means be connected failed.
9
Address of 3rd indoor unit
connected to valve box
“----”means be connected failed.
10
Address of 4th indoor unit
connected to valve box
“----”means be connected failed.
11
Address of 5th indoor unit
connected to valve box
“----”means be connected failed.
12
Address of 6th indoor unit
connected to valve box
“----”means be connected failed.
13
Address of 7th indoor unit
connected to valve box
“----”means be connected failed.
14
Address of 8th indoor unit
connected to valve box
“----”means be connected failed.
