MAHLE RTI TC670RR User Manual
OPERATION
&
MAINTENANCE
MANUAL
TC670RR
Refrigerant Recycling Center
RTI Technologies, Inc.
10 Innovation Drive
P.O. Box 3099
York, PA 17402 USA
717-840-0678 ext. 259
tech@rtitech.com
035-81079-00
TABLE OF CONTENTS
TC670RR
Start Up & Safety Operation .................2
Recover - Recycle ........................3
Oil Drain & Air Purge ......................4
Vacuum ................................5
Self Evacuation...........................6
Scheduled Maintenance & Filter Maintenance . . . 7
Component Setup .........................8
Parts Identification ........................9
Flow Diagram ............................10
Schematic Diagram .......................11
EC Declaration of Conformity for Machinery.....12
STARTUP & SAFE OPERATION
9 Do not use a damaged unit. Check for shipping damage and place a claim with carrier if
damage is discovered.
9 The TC670RR should not be operated or serviced by any person who has not read all the
contents of this manual.
9 This manual describes normal operation and maintenance for the TC670RR. Failure to
read and comply with these instructions or any one of the limitations noted herein can
result in serious injury and/or property damage. The instructions should not be interpreted
to anticipate every possible contingency.
9 It is the responsibility of the owner/user to operate the TC670RRin accordance with all
laws and specifications which may apply.
9 Avoid breathing refrigerant or lubricant vapor. Exposure may irritate eyes, nose and
throat. Ventilate work area if accidental system discharge occurs.
9 Wear safety glasses and protective gloves. Refrigerant has a very low boiling point and
can cause frostbite.
9 Follow the TC670RR operating procedures sequentially to avoid prematurely
disconnecting hoses or opening valves which may release refrigerant to the atmosphere.
9 Do not expose the TC670RR to moisture or operate in wet areas.
9 Use the TC670RR in locations with ventilation that provides at least four air changes per
hour.
9 Hoses must have shutoff devices within 12 inches of the connection point to the A/C to
minimize the introduction of air into the TC670RR and the release of refrigerant when
being disconnected.
9 Disconnect power before performing any maintenance or service on the TC670RR.
Special Considerations with R134a
R134a has been shown to be nonflammable at ambient temperature and atmospheric
pressure. However, tests under controlled conditions have indicated that at pressures above
atmospheric and with air concentrations greater than 60 percent by volume, R134a can form
combustible mixtures.
While it is recognized that an ignition source is also required for combustion to occur, the
presence of combustible mixtures is a potentially dangerous situation and should be avoided.
Under no circumstances should any equipment be pressure tested or leak tested with air and
R134a mixtures. Do not use compressed air for leak detection in R134a systems.
Page 2
RECOVER - RECYCLE
To Recover - Recycle, refer to the above illustration and follow these steps:
1. Attach the Red and Blue Hoses to the A/C system per the manufacturer's instructions.
2. Open the High and Low Gauge Valves.
3. Open the Red and Blue Hose Valves.
4. Press the top (ON) of the rocker switch marked POWER.
5. Press the top (ON) of the rocker switch marked RECOVER-RECYCLE.
The TC670RR will automatically recover and recycle refrigerant from the A/C System until
a vacuum is sensed. This vacuum level can be seen on the Low Side Gauge.
Note: A small quantity of Liquid refrigerant will probably still remain in the A/C System. This
can be detected by observing an increasing pressure reading on the Low Pressure
Gauge. As pressure increases to a preset level, the TC670RR will automatically cycle
on and off to continue recovering refrigerant. Allow this automatic sequence to repeat
until the vacuum level remains constant for at least 2 minutes.
6. Close the Red and Blue Hose Valves.
7. Close the High and Low Gauge Valves.
8. Press the bottom (OFF) of the rocker switch marked RECOVER-RECYCLE.
9. Press the bottom (OFF) of the rocker switch marked POWER.
Note: The PURGE REQUIRED OR CYLINDER FULL light will illuminate if either the
Recovery Cylinder has filled to capacity or the pressure on the Purge Gauge
approaches 450 psig.
Page 3
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