23
8.7 Re-installation while the outdoor unit need to be repaired
1. Evacuation for
the whole system
Procedure:
1). Confirm that both the 2-way and 3-way valves are set to the opened position.
2). Connect the vacuum pump to 3-way valve’s service port.
3). Evacuation for approximately one hour. Confirm that the compound meter indicates -0.1Mpa.
4). Close the valve (Low side) on the charge set, turn off the vacuum pump, and confirm that the gauge
needle does not move (approximately 5 minutes after turning off the vacuum pump).
5). Disconnect the charge hose from the vacuum pump.
Summary of Contents for YU2E14YEEBMHO-X
Page 8: ...7 5 Wiring diagram YU2E14YEEBMHO X YU2E18YEEBMHO X...
Page 10: ...9...
Page 11: ...10 YU4E28YEEBMHO X YU4E36YEEBMHO X...
Page 12: ...11 YU5E42YEEBMHO X...
Page 34: ...33 10 3 1 2 Indoor outdoor units communication error...
Page 39: ...38 10 3 1 4 Open or short circuit of temperature sensor 10 3 1 5 Full water malfunction...
Page 42: ...41 10 3 3 2 Communication malfunction between IPM board and outdoor main board ODU E3...
Page 45: ...44 10 3 3 5 High pressure protection ODU P1 ForYU4E28YEEBMHO X YU4E36YEEBMHO X YU5E42YEEBMHO X...
Page 47: ...46 10 3 3 7 Current protection of compressor ODU P3...
Page 48: ...47 10 3 3 8 Temperature protection of compressor discharge ODU P4...
