Viper VR-6000 Operation Instructions, Recover And Recycle Refrigerant From An Ac System

INSTRUCTIONS MANUAL

OPERATION INSTRUCTIONS

RECOVER AND RECYCLE REFRIGERANT FROM AN AC SYSTEM

1.Be sure that the shut off valves are off prior to attaching to a vehicle AC system.

2.Attach the machine to the high and low sides of the AC system to be serviced. The R- 134a hoses have SAE approved shut-off valves (quick disconnects). The hoses are shut off when disconnected from the AC system and are open only when connected with the knurled knobs turned clockwise. Slide the collar of the fitting back and press to the appropriate fitting.

•Blue hose to the low side of AC system

•Red hose to the high side of AC system

3.Set MAIN POWER (k, Figure 3) ON.

4.Open the valves on the service hoses by turning the knurled knob clockwise (Figure 12). This will allow refrigerant to flow to the vehicle.

5.Observe the pressure readings on the low and high side manifold gauges. If the readings are zero, then repair AC system leak or proceed to vacuum phase.

6.Open the High Side and Low Side valves on the control panel of the machine.

7.Press and hold the SEL key until the LED corresponding to “RECOVERY” lights; then press GO. At this point the RECOVERY/RECYCLING phase will begin and the “Recovery” LED will flash.

8.During the RECOVERY/RECYCLING phase the amount of refrigerant recovered from the vehicle will be displayed. Upon completion of the recovery phase the machine will stop and hold three minutes.

9.During this time the machine automatically discharges the used oil. It will be necessary to monitor this oil dumping to determine the amount of oil that must be added to the vehicle. When the oil discharge is complete, measure, record and empty the oil discharge bottle. This amount will be added to the AC system before charging. When there is no increase in system pressure, the vacuum pump will start and evacuate the input oil separator inside the VR-6000.

10.If, during this 3-minute time period, the residual refrigerant left in the A/C system causes the pressure to increase, the machine will automatically resume recovering the refrigerant. When this phase is complete the machine will sound and audible alarm, and switch to the REFRIGERANT AVAILABLE display.

11.Close the High Side and Low Side panel valves.

12.Set the MAIN POWER switch OFF.

13.Disconnect the machine if desired. (See DISCONNECTING THE MACHINE FROM A VEHICLE.)

14.Make necessary repairs to the A/C system being serviced.

REMOVING NON-CONDENSABLE GASES

As non-condensable gases accumulate in the refrigerant storage tank, excessive pressure is created. The most noticeable symptom of excess pressure is a slow down of refrigerant flow during the recovery process. In most cases, you will not notice a reduction in refrigerant recovery rate until the nominal pressure in the storage tank is 20 psig above the normal pressure, as listed on the purge chart. Check for non-condensable gases after each recovery phase. The table provided below (Figure 13) is used to determine when an excess of non-condensable gases has accumulated in the refrigerant storage tank.

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