Nissan Micra K11 silhouetteK11

DISCHARGING, EVACUATING, CHARGING AND CHECKING — Setting of Service Tools (Cont'd) / Discharging / Refrigerant Recovery

HA-16prose procedure
Continued from HA-15

Setting of service tools

  1. 1
    Install adapter valve to each of high pressure and low pressure service valves.
    Before connecting adapter valve, turn adapter valve handle fully counterclockwise to retract pin.
    Adapter valve handle operation diagram (left view 'Closes', right view 'Opens') with 'Connect to charging hose' between them and 'On-vehicle service valve' below.
    RHA585B
  2. 2
    Connect charging hoses to adapter valves and connect vacuum hose to vacuum pump.
    Schematic showing the gauge manifold with both valves open, connected via vacuum hose to a vacuum pump and via charging hoses to adapter valves (closed) on the compressor service valves. An additional valve (open) is in the vacuum line.
    SHA893C
  3. 3
    Run vacuum pump and open additional valve and both valves on gauge manifold set.
  4. 4
    After evacuating unwanted air in gauge set, close additional valve and stop vacuum pump.
  5. 5
    Disconnect vacuum hose from vacuum pump and connect it to refrigerant recycling equipment.

Discharging

Refrigerant recovery

  1. 1
    Connect vacuum hose to refrigerant recycling equipment and open additional valve and adapter valves.
    Discharging schematic. Compressor at top connects high pressure side to condenser and low pressure side from evaporator to a manifold with two gauges (low pressure on left, high pressure on right). Both valves feed into the refrigerant recycling equipment at lower left via an additional valve.
    SHA890C
  2. 2
    Open both valves of manifold gauge set. Make certain refrigerant tank "Gas" and "Liquid" valves are open.
  3. 3
    Plug unit's power cord into a suitable AC outlet and turn on "Main Power" switch.
  4. 4
    Turn on "Recovery" switch.
  5. 5
    Depress "Start" switch. Compressor will start. Compressor will shut off automatically when recovery is complete. Watch for pressure rise to above 0 kPa (0 bar, 0 kg/cm², 0 psi) within two minutes. If this occurs, repeat this step.
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