23
2.Long press
key, until the pressure is OK.
7.9 VACUUM TEST
After a vacuum operation,if the A/C system can hold the vacuum state, that
means the system is OK, if it lost some vacuum, there should be existing the
leakage in somewhere. the operation is divided into two steps, first is vacuum,
second is vacuum test.
1. Press
key ,the LCD show
Use the
and
to adjust the vacuum time then NEXT
2. Press
key ,then the LCD show
Use the
and
to set the test time then NEXT
3. Press
key , vacuum start , and the LCD show
When vacuum is over ,the syetem begin to test ,and the LCD show
VACUUM TEST
VACUUM TIME
10
:00
Press OK to next
V
VACUUM TEST
TEST TIME
10
:00
Press OK to start
VAC U UM
RUN N IN G * *
：
* *
