31
Tubing check
Lamps
Description
lamp indication
0
1
2
3
4
●
●
●
●
✕
✕
✕
✕
Electronic expansion valve of unit A not open
●
●
✕
●
●
✕
✕
✕
Electronic expansion valve of unit B not open
●
●
✕
✕
●
●
✕
✕
Electronic expansion valve of unit C not open
●
●
✕
✕
✕
●
●
✕
Electronic expansion valve of unit D not open
●
●
●
●
●
●
✕
✕
✕
Wrong tubing between units A and B
●
●
●
●
✕
●
●
✕
✕
Wrong tubing between units A and C
●
●
●
●
✕
✕
●
●
✕
Wrong tubing between units A and D
●
●
✕
●
●
●
●
✕
✕
Wrong tubing between units B and C
●
●
✕
●
●
✕
●
●
✕
Wrong tubing between units B and D
●
●
✕
✕
●
●
●
●
✕
Wrong tubing between units C and D
●
●
●
●
●
●
●
●
●
●
●
●
No errors in valves and tubing
✩
▲
▲
▲
▲
▲
▲
▲
▲
▲
▲
Not possible to continue with the checking
Table of Tubing Error Indication
●
●
Illuminated.
▲
▲
Off.
✩
Flashing on 1 second, off 1 second.
▲
▲
Display when check is discontinued.