MAHLE RTI Matco AC880 - Manual (Page 10)

Page 9
W E I G H T = X X . X L B
A U T O M A T I C
?
5
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W E I G H T = X X . X L B
C H A R G E
?
5
ENTER
E N T E R C H A R G E
A M O U N T = X X . X L B 5
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ENTER
*
L O W L E V E L , G O T O
F I L L C Y L I N D E R 5
ENTER
C H E C K H I G H - L O W
C H A R G E S W I T C H 5
ENTER
W E I G H T = X X . X L B
C H A R G I N G
C H A R G E C O M P L E T E
E V A C H O S E S 5
ENTER
CHARGE
1. Set up the AC880 and turn the Main Power Switch ON.
2. Attach the Red and Blue Hoses to the A/C System per the vehicle manufacturer's
instructions and open the Red and Blue Hose Valves.
3. Determine the refrigerant capacity of the A/C System to be charged.
Note: 1 oz = 0.02835 Kg 1 Lb = 0.45359 Kg
4. Using the Keypad, press the “Up Arrow” key three times to display “WEIGHT=
XX.X LB” “CHARGE?
5” and press the ENTER key. The Display will read
“ENTER CHARGE” “AMOUNT= XX.X LB
5”.
5. Press the “Up Arrow” key to change the value of the field. Press the “Right Arrow”
key to change to a different field. The value entered must be greater than zero.
Press the ENTER key to accept the value. The Display will read “CHECK HIGH-
LOW” “CHARGE SWITCH
5”.
* This screen will display if the AC880 Charge Cylinder contains less
refrigerant than the entered value. When this occurs, the charging Cylinder
should be filled using the Fill Cylinder procedure on Page 5. Press the
ENTER key to return to the Main Menu.
6. Based on the vehicle manufacturer’s instructions, choose Charging through either
the High Pressure Hose (preferred) or the Low Pressure Hose by pressing the
top or bottom (respectively) of the High-Low Charge Selector Switch (12).
Note: Do not turn on the A/C System. SAE compliant refrigerant handling
stations, like the AC880, supply refrigerant in the liquid phase. Adding
liquid refrigerant to a running A/C System may cause immediate A/C
compressor failure.
7. Press the ENTER key to start charging.
The Display will read “WEIGHT= XX.X LB” “CHARGING” as refrigerant leaves
the Charging Cylinder. The weight displayed will increase from zero to the Charge
Amount entered in Step 5 plus a one ounce (0.03 KG) Over Charge set at the
factory to compensate for hose loss. (See Set Over Charge Amount on Page 13
to change the default value.) When the AC880 has finished, the Display will read
“CHARGE COMPLETE” “EVAC HOSES” and the Attention Light will turn ON.
8. Press the ENTER key to return to the Main Menu. The A/C System can now be
turned on and tested by monitoring the High and Low Pressure Gauges.
9. Close the Red and Blue Hose Valves, disconnect them from the A/C System and
go to Page 6 (Recover/Recycle) to Evacuate refrigerant from the Hoses.