Maintenance and
Disassembly
Page 19
1.3.2 Outdoor Unit
Evacuation for the whole system
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Procedure:
1.
Confirm that the 2- and 3-way valves are opened.
2.
Connect the vacuum pump to the 3-way valve’s
service port.
3.
Evacuate the system for approximately one hour.
Confirm that the compound meter indicates
-0.1 MPa (14.5Psi).
4.
Close the valve (Low side) on the charge set and turn
off the vacuum pump.
5.
Wait a period of five minutes then check whether the
gauge needle moves after turning off the vacuum
pump.
6.
Disconnect the charge hose from the vacuum pump.
