MAHLE RTI Matco AC880 - Manual (Page 6)

Page 5
This procedure may be slow or fail to work if the internal
charge cylinder pressure is higher than the pressure in the
cylinder of new refrigerant. Check and purge air if necessary
(See Page 7).
Also, try putting a heat belt on the new refrigerant cylinder. or
put the cylinder in a container of warm water.
W E I G H T = X X . X L B
A U T O M A T I C ? 5
>>>>
W E I G H T = X X . X L B
F I L L C Y L I N D E R ? 5
ENTER
C H E C K H O S E S
S T A R T ? 5
ENTER
W E I G H T = X X . X L B
C O M P R E S S O R O N
F I L L C O M P L E T E
F I L L E D = X X . X L B 5
ENTER
*
H I G H P R E S S U R E
S E E M A N U A L
**
C Y L I N D E R F U L L
G O T O C H A R G E 5
FILLING THE CHARGE CYLINDER
Note: For large capacity or multiple A/C Systems where recharge will NOT
be done between successive recoveries, it may be desirable to skip
this procedure.
1. Setup the AC880 as shown on Page 4 and then turn the Main Power
Switch ON.
Note: The AC880 uses 37 lbs (17 Kg) of refrigerant when Filling the first
time. If the Refrigerant Cylinder is emptied the AC880 will appear
to stop filling (the Weight will stop rising) and will stay in this
condition until the RESET key is pressed.
2. Using the Keypad, press the “Up Arrow” key four times to display
“WEIGHT= XX.X LB” “FILL CYLINDER? 5” and press the ENTER key.
The Display will read “CHECK HOSES” “START? 5”.
3. Open the LIQUID Valve on the Refrigerant Cylinder connected to the Fill
Port on the rear of the AC880 with the Yellow Hose.
4. Press the ENTER key when ready to start filling the AC880.
The Display will read “WEIGHT=XX.X LB” “COMPRESSOR ON”. When
the level is approximately 35 lbs (16 kg) the AC880 will turn OFF, the
Display will read “FILL COMPLETE” “FILLED= XX.X LB 5” (the amount
of refrigerant removed from the cylinder) and the Attention Light will turn
ON. Close the Liquid Valve on the Refrigerant Cylinder.
Note: Press the RESET button on the Keypad to stop the
Fill Cylinder procedure at any time.
5. Press the ENTER key to return to the Main Menu.
* While filling the Charging Cylinder, this screen will display periodically
concurrent with the Attention Light turning ON. This is normal and
nothing to be concerned about. The screen should revert to normal
after a few seconds.
** This screen will display when the Charging Cylinder fills to capacity,
approximately 39.5 lbs (18 Kg). If this occurs, the Weight can be
lowered using the Charging procedure on Page 9 before the AC880
can be used to recover more refrigerant. Press the ENTER key to
return to the Main Menu.
Note: The AC880 Charging Cylinder can also be filled from the GAS or
VAPOR side of a cylinder by following the Recover/Recycle
procedure on Page 6.
Note: The AC880 will use 1.1 Lb (0.5 Kg) more refrigerant than the
displayed value the very first time it is used or after performing a
Calibration Procedure in order to prime the internal components.
Note: The Yellow Hose can be removed from the Fill Port and connected
to either the Blue {Low side} or Red {High Side} Hose connection
port on the side of the AC880 to allow recovering the refrigerant left
over in the Yellow Hose using the Recover/Recycle procedure on
Page 6.