Panasonic CU-2S18NBU-1 service manual Power Save Mode, Mode priority function

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NOTE

1.For two rooms, LED 4 and 5 are not illuminated after wiring operation complete.

2.If the outdoor air temperature is less than 41°F or unit has abnormality, wiring operation will not start.

3.After wiring check operation is complete, LED indication will illuminated until normal operation starts.

4.Follow the product diagnosis procedure. (Check the diagnostic label at the control board cover.)

5.When LED 1 only illuminate, indicates that outdoor unit is operating normally.

13.4Power Save Mode

Power Save Mode can be enabled by pushing POWER SAVE switch (SW4) to ON before power supply ON.

When Power Save Mode is ON, the unit can be operate at lower running current where the breaker capacity not achieve the requirement.

13.5 Mode priority function

Mode priority function can be enabled by pushing MODE PRIORITY switch (SW5) to ON before power supply ON.

When Mode Priority Function is ON, the mode priority is given to higher capacity indoor units.

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Contents Table of Contents Disassembly and Assembly Instructions Items to be followed are classified by the symbols Safety PrecautionsPage Model Outdoor Unit CU-2S18NBU-1 SpecificationMulti split combination possibility Dimensions Refrigeration Cycle Diagram Block Diagram Wiring Connection Diagram Electronic Circuit Diagram Main Printed Circuit Board Printed Circuit BoardNoise Filter Printed Circuit Board Check Points Installation InformationOutdoor Unit Installation Diagram Installation InstructionOutdoor Unit Installation Guidelines Gas Leak Checking Connecting the Piping to Outdoor UnitEvacuation of the Equipment Heat Insulation Operation Control Powerful OperationCooling Operation Outdoor fan controlElectronic Parts Temperature Rise Protection 2 Cool Electronic Parts Temperature Rise Protection 1 CoolProtection Control Freeze Prevention control CoolIPM power transistor Protection Control Time Delay Safety Control Restart ControlCooling overload control Cool 12.7 30 seconds Force OperationValve close detection control Compressor Protection Control Gas leak detection controlCompressor discharge high pressure protection control Wiring Error Check Servicing ModePump Down Operation Test OperationMode priority function Power Save ModeSelf Diagnosis Function Troubleshooting GuideIndoor high Check indoor heat Exchanger Outdoor Unit Removal Procedure Disassembly and Assembly InstructionsRemoving the Cabinet Top Plate and Cabinet Front Plate Remove the Control Board Cover and Particular PlatesRemoving the Propeller Fan and Fan Motor Removing the Control P.C. BoardPage Operation Characteristics Technical DataCS-S9NKUW-1 CU-2S18NBU-1 Page CS-S9NKUW-1x2 CU-2S18NBU-1 Page CS-S12NKUW-1 CU-2S18NBU-1 Page CS-S12NKUW-1x2 CU-2S18NBU-1 Page CS-S12NKUW-1+CS-S9NKUW-1 CU-2S18NBU-1 Page Exploded View and Replacement Parts List REF. no Description & Name QTY Shock Absorber Left