OPERATION
6
Direct Vapor or Liquid Recovery
IMPORTANT: Before starting the recover of the refrigerant, a refrigerant identifier should
be used to determine the type and purity of the refrigerant. Failure to properly identify
the refrigerant could potentially expose the user to danger from flammable refrigerants
and health hazards from toxic refrigerants. Cross contamination of refrigerants can also
occur and would require special handling of the refrigerant.
1. Connect the TRA21 to mobile A/C using a manifold set. Use R-134a type manifold
(MAIA6Q) for R-134a system recovery. Use R-1234yf type manifold (MTHFO) for
R-1234yf system recovery. Use commercial type manifold (MBHP6) for commercial
refrigerant recovery.
2. Connect the TRA21 discharge to vapor port of the DOT recovery tank.
3. Connect the Yellow Overfill Sensor Cord to the float in the recovery tank. This cord
is not inclueded on the model TRA21E. For the TRA21E, use scale to monitor tank
weight. All connections should be done as shown in Diagram - 1.
4. Open the vapor valve on the recovery tank.
5. Start unit by pushing main power switch to the “ON” position.
6. Open the HI and LO side manifold valves to start the refrigerant flow.
7. Monitor the LO side manifold gauge. Once the gauge reaches 20˝ HG vacuum, turn
the unit off.
8. Close the vapor valve on the recovery tank.
9. Disconnect the hose from the TRA21 discharge, then a small amount of refrigerant
under pressure will be released.
10. Drain and measure oil from the oil separator. Only new lubricant, as identified by
the system manufacturer, should be replaced in the mobile A/C system. Removed
lubricant from the system and/or the equipment shall be disposed of in accordance
with the applicable federal, state and local procedures and regulations.
Summary of Contents for Pro-Set TRA21 Series
Page 7: ...OPERATION Diagram 1 ...
Page 9: ...Diagram 2 OPERATION ...
