Panasonic MAC0105011C3 Service Manual page 66

Procedure:
1. Connect a charging hose with a push pin to the Low side of a
charging set and the service port of the 3-way valve.
- Be sure to connect the end of the charging hose with the
push pin to the service port.
2. Connect the centre hose of the charging set to a vacuum pump.
3. Turn on the power switch of the vacuum pump and make sure
that the needle in the gauge moves from 0 MPa (0 cmHg) to -0.1
MPa (-76 cmHg). Then evacuate the air for approximately ten
minutes.
4. Close the Low side valve of the charging set and turn off the
vacuum pump. Make sure that the needle in the gauge does not
move after approximately five minutes.
BE SURE TO TAKE THIS PROCEDURE IN ORDER TO AVOID GAS
LEAKAGE.
5. Disconnect the charging hose from the vacuum pump.
6. Charge the pipes and indoor unit with gas refrigerant from 3-way
valve service port, and then discharge the refrigerant until low
side (gas side) gauge needle indicates 0.3 MPa (3 kg/cm
7. Tighten the service port cap at a torque of 18 N.m with a torque
wrench.
8. Remove the valve caps of the 2-way valve and the 3-way valve.
Position both of the valves to "open" using a hexagonal wrench (4
mm).
9. Mount the valve caps onto the 2-way and 3-way valves.
- BE SURE TO USE REFRIGERANT RECLAIMING EQUIPMENT
WHILE DISCHARGING THE REFRIGERANT.
- Purge the air from charge set's centre hose.
- Be sure to check for gas leakage.
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