MAHLE RTI TC2670 User Manual

OPERATION

&

MAINTENANCE

MANUAL

TC2670E & TC2670V

Refrigerant Recycling Center

RTI Technologies, Inc.

4075 E. Market St.

P.O. Box 3099

York, PA 17402 USA

717-840-0678 ext. 259

[e-mail]

Manual P/N 035-80381-00 (Revised 1999)

TABLE OF CONTENTS

TC2670

Start-Up ........................................ 2

Safety Precautions ................................ 3

Filling the Charging Cylinder ......................... 5

Recover/Recycle ................................. 7

Oil Drain & Air Purge .............................. 9

Vacuuming ...................................... 10

Hose Evacuation .................................. 11

Charge/High Side ................................. 12

Scheduled Maintenance & Filter Maintenance ............ 14

Problems & Solutions .............................. 15

R134a Cylinder Adapter Instructions .................. Appendix

CONGRATULATIONS:

You have purchased one of the finest Recovery, Recycling, and Charging Machines available!
Fill out and return the Warranty Card within 90 days to activate warranty and free lifetime
technical support.

RTI Technologies, Inc.

START-UP INSTRUCTIONS

1) Check for any shipping damage. Place a claim with carrier if damage is discovered.

2) Complete and return the Warranty Card to activate Technical Support and Warranty Coverage.

Warranty claims can not be honored without this warranty card on file.

BEFORE USING THE TC2670

Check for any shipping damage. Place a claim with carrier if damage is discovered.

DO NOT USE A DAMAGED UNIT.

Complete and return the Warranty Card to activate technical support service and warranty coverage.

Warranty claims can not be honored without this warranty card on file.

The TC2670 should not be operated or serviced by any person who has not read all the contents of this
manual. 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.

These general instructions describe normal operation and maintenance situations encountered with the
TC2670. The instructions should not be interpreted to anticipate every possible contingency.

It is the responsibility of the owner/user to operate the TC2670 in accordance with all specifications and
laws which may apply.

The following pages contain rules for safe operation of the TC2670. Taking precedence over any specified
rule listed herein, however, is the most important rule of all:

"USE COMMON SENSE"

A few minutes spent reading these instructions can make an operator aware of dangerous practices to avoid
and precautions to take for his own safety and the safety of others.

A regular schedule of inspection of the TC2670 should be established and records maintained with special
attention given to Hoses, Compressor Oil Level, Moisture Indicator, and Filters.

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RTI Technologies, Inc.

SAFETY PRECAUTIONS

! Recover, Recycle, and Charge only the refrigerants for which the machine is configured.

! Wear safety glasses and protective gloves. Refrigerant has a very low boiling point and can cause

frostbite.

! Follow the TC2670 operating procedures sequentially to avoid prematurely disconnecting hoses or

opening valves which may release refrigerant to the atmosphere.

! Do not expose the TC2670 to moisture or operate in wet areas.

! Use the TC2670 in locations with mechanical ventilation that provides at least four air changes per

hour.

! Hoses used with the TC2670 must have shutoff devices within 12 inches of the connection point to

the system being serviced to minimize the introduction of Non-condensable Gas (Air) into the TC2670
and the release of refrigerant when being disconnected.

! Disconnect power before performing any maintenance or service on the TC2670.

! Avoid using an extension cord with the TC2670. If necessary, use a good condition, UL listed, 3-

wire grounded, #14 AWG, or larger, extension cord of the shortest possible length.

! Connect the TC2670 to a properly grounded receptacle. Do not over load the circuit.

! Do not allow the TC2670 to remain unattended in the Charge Mode with power On. The Charge

Cylinder Heater will be energized creating a high pressure condition.

NEVER TURN THE CYLINDER UP-SIDE-DOWN.

DO NOT CONNECT THE TC2670 TO THE LIQUID SIDE OF ANY A/C
SYSTEM WITH A CAPACITY GREATER THAN 4 LBS.

REFRIGERANT IN A/C SYSTEMS HAVING LARGER CAPACITIES
MUST BE RECOVERED FROM THE VAPOR SIDE ONLY.

NEVER CONNECT THE TC2670 TO THE LIQUID PORT OF A

CYLINDER OF REFRIGERANT TO FILL THE TC2670 CHARGE CYLINDER.

FAILURE TO FOLLOW THE ABOVE MAY CAUSE THE TC2670 COMPRESSOR TO FAIL
AND VOID THE WARRANTY.

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RTI Technologies, Inc.

LL CAUTION 7

Avoid breathing refrigerant or lubricant vapor or mist.

Exposure may irritate eyes, nose and throat.

If accidental system discharge occurs, ventilate work area before resuming service.

Additional health and safety information may be obtained from refrigerant and lubricant
manufacturers.

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% 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/R134a mixtures. Do not use compressed air (shop air) for leak detection in R134a
systems.

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RTI Technologies, Inc.

FILLING THE CHARGING CYLINDER

A/C Systems requiring service often do not have a full charge of refrigerant. To avoid unnecessary
repositioning of hoses it is recommended that the TC2670 be filled until about 3 pounds of liquid refrigerant
can be seen in the Charging Cylinder Sight Glasses. The Sight Glasses are visible through slotted openings
on the front of the TC2670.

Figure 1 Filling the Cylinder

To fill the TC2670 Charge Cylinder, refer to Figure 1 and follow these steps:

Note: Instructions given for R12 side only. Operation of R134a side is identical.

1. Connect the Low Side Blue Hose to the VAPOR port of a cylinder of the correct refrigerant. An

adapter is provided with the TC2670 for the R134a side which permits the Field Service Coupler to
be attached to the .500-16 ACME fitting on the cylinder of refrigerant (See instruction sheet in
Appendix).

If the cylinder has two ports, observe that the embossed marking on the cylinder knob says VAPOR
or GAS. Do not rely on color coding of the knobs on the valves.

DO NOT CONNECT TO THE LIQUID VALVE.

DO NOT TURN THE CYLINDER UP-SIDE-DOWN.

INTRODUCT ION OF LIQUID INTO THE TC2670 MAY DAMAGE THE
COMPRESSOR AND VOID THE WARRANTY.

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