GM-720
A/C System Maintenance
Centre
8
recharging tank (external tank). Otherwise, from the cleaning tank (internal tank).
iii.
It’s by cleaning tank (internal tank) to recharge as default. After fixed
the recharging tank (external tank), you can set to recharge refrigerant
from the recharging tank (external tank). The setting ways is referring
to the PARAMETER SETTING.
iv.
When the refrigerant in the recharging tank (external tank) is not
enough, please exchange one tank of refrigerant. The exchanging
ways is referring to the RECHARGING TANK EXCHANGING.
Operations;
A
、
Press the
key to select recharging function.
B
、
The led displays the amount of recharging.
C
、
Set filling amount by press “+” or “-” key, and then press “ENTER” key.
Note: set the filling amount according to automotive user manual.
The unit is kg.
D
、
Presses “START” key to run.
E
、
Stop automatically after recharging finished.
Note: In the filling process, if LED displays alternately the remaining
amount of filling and the letters "AC", it means that you need to turn
off the HP coupler and turn on the car air-conditioning to complete
the filling process. Later, you should supply new refrigerant into the
tank.
9) Maintenance
A
、
Calibration of load cell
When the load cell is not precise
,
it needs to be calibrated.
Calibrating procedure as below:
i. Prepare a 15 kg weight. And remove the refrigerant tank from scale pan
and keep the pan empty.
Note: do not disconnect the red and blue hose from the refrigerant
tank. It’s better put the refrigerant tank on a lower stage
.
ii. Press and hold “STOP” key then power on the equipment. Press”+”or ”-”
to select the load cell of cleaning tank (internal tank, SEN1) or of the
recharging tank (external tank, SEN2). Press “ENTER” key to the
calibration process.
