MAHLE RTI RRC750X - Manual (Page 13)

Refrigerant Technologies, Inc.
May 24, 1993 Page 12
SCHEDULED MAINTENANCE
DAILY BEFORE USE...
Check the oil level in the Compressor daily before operating the RR750X.
The oil level tube can be seen next to the Compressor by looking through the vent openings on the
side of the RR750X nearest the Main Power Switch.
Oil should be visible in the clear tube, but at a level less than one inch.
If the oil level is not visible, proceed with the Recover/Reclaim operation and recheck the oil level
when complete.
If the level is still not visible, oil must be added.
Remove the front cover. Slowly remove the Oil Fill Cap on the Compressor. Allow the pressure
to equalize.
Use the Oil Syringe to add Refrigeration Oil until the level is visible and less than one inch. Add
one syringe full at a time. Wait 5 minutes between each syringe full for the oil to settle.
THE OIL LEVEL MUST NEVER BE MORE THAN ONE INCH HIGH
Replace the Oil Fill Cap on the Compressor before applying power to the RR750X.
AFTER EVERY 10 HOURS OF OPERATION...
Clean the Condenser to maintain high efficiency performance of the RR750X. Remove both side
covers and blow compressed air through the coil to remove any debris. It may be necessary to use
a soft brush if the coil is very dirty.
Do not bend the fins on the Condenser coil. Air flow will be restricted and cause damage to the
RR750X. Replace both side covers before applying power to the RR750X.
AFTER EVERY 75 HOURS OF OPERATION
Replace Filter-Drier as described in the following steps:
! Turn on Filter By-pass Valve by turning yellow handle on rear of cabinet to HORIZONTAL
position.
! Remove larger filter cover on rear of cabinet.
! Remove cap on access fitting of Filter-drier and connect 8 Ft. hose from this fitting to the Inlet
Port of the RR750X.
! Turn on the Main Power Switch and recover all the refrigerant from the Filter-drier.
! Remove and replace the Filter-drier. Reuse the black insulation around the filter. Disposal
of old filter requires no special handling as it contains no hazardous substances.
MAKE ALL CONNECTIONS FINGER-TIGHT ONLY