MAHLE RTI RHS730 (Rev A) - Manual (Page 13)

Page 12
WARNING
Failure to perform the Drain Oil procedure after
every recycle procedure will cause the RHS730 to
eventually fail.
Repair of the RHS730 to correct this problem is not
covered by warranty.
ENTER
A D D O I L N O W
C O N T I N U E
? 5
ENTER
W E I G H T = X X . X L B
C H A R G I N G
R E C Y C L E D = X X . X L B
E V A C H O S E S 5
ENTER
D R A I N R E C O V E R E D
O I L N O W !
5
ENTER
AUTOMATIC - Continued
14. If Add Oil was selected by choosing Y in Step 8 the Display will read
ADD OIL NOW CONTINUE? 5 and the Attention Light will turn on. (Skip
to Step 15 if Add Oil was not selected).
Fill the Oil Charge Bottle. Open the valve on the Oil Charge Bottle and
leave it open until the correct amount of oil (measured in Step 12) has left
the Oil Charge Bottle. Close the valve on the Oil Charge Bottle and press
the ENTER key to continue. The oil drawn in will be charged with the
refrigerant during the Charge procedure.
15. If a Charge Amount greater than zero pounds was entered in Step 9 the
Display will read WEIGHT= XX.X LB CHARGING as refrigerant leaves
the Charge Cylinder. The weight displayed will increase from zero to the
Charge Amount entered 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 14 to change the default value. When the RHS730 has finished,
the Display will read RECYCLED=XX.X LB EVAC HOSES and the
Attention Light will turn on.
16. Press the ENTER key. The Display will read DRAIN RECOVERED OIL
NOW!. This is a reminder that oil must be drained after every recycle
procedure. If it was drained in Step 12 above it is not necessary to drain
it here. If it was not drained in Step 12, drain any recovered oil as follows:
16.1 Press and hold the Oil Drain Re-pressurization Switch on the rear
of the RHS730 for five seconds.
16.2 Slowly open the valve on the Oil Drain Bottle to drain any oil which
may have been removed from the A/C System.
16.3 Close the valve on the Oil Drain Bottle.
16.4 Press and hold the Oil Drain Re-pressurization Switch for five
seconds. This causes any residual Non-Condensable Gas to be
re-circulated for reprocessing during the next recycle procedure.
17. Press the ENTER key to return to the Main Menu. The A/C System can
now be turned on and checked by monitoring the High and Low Pressure
Gauges.
18. Close the Red and Blue Hose Valves. Disconnect them from the A/C
System and go to Page 6 (Recycle) to evacuate the refrigerant from the
hoses if desired.