Sanyo KMS1872, KMS2472 service manual Quiet Mode

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Operation with the Remote Control Unit (continued)

5. QUIET Mode

QUIET Mode is used to reduce the fan sound of the indoor unit.

Press the QUIET button.

The mark appears in the display.

To cancel, press QUIET button again.

• In QUIET Mode, the fan rotates at a slower speed than the fan speed setting.

If the unit is already operating with a very low airflow, the fan sound may not change even if the QUIET button is pressed.

6. HIGH POWER Mode

HIGH POWER mode can be used to increase the output of the indoor unit for all operation modes.

Press the HIGH POWER button.

The mark appears in the display.

To cancel, press HIGH POWER button again.

• When the HIGH POWER button is pressed, the unit operates at maximum output for 30 minutes, regardless of the desired temperature. The fan speed is 1 step above “High”.

• QUIET Mode and HIGH POWER Mode cannot be used at the same time.

NOTE

Depending on the operating conditions, the fan speed may be increased by a small amount only.

7. ION Mode

The ION mode is used during operation to generate negative ions that freshen up the air in the room.

Press the ION button.

The mark appears in the display.

To cancel, press ION button again.

The indoor unit’s ION lamp lights up while negative ions are being generated.

ION “on” is the remote control unit’s initial setting.

• The negative ions are generated from the negative ion generator.

OI-807-15-EG

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Contents 17,500BTU / h KMS1872 Capacity Indoor Model No Product Code No 500BTU / h KMS0772000BTU / h KMS0972 11,900BTU / h KMS1272Please Read Before Starting Table of Contents Applicable MULTI-OUTDOOR Units Indoor Air Intake Temp Outdoor Air Intake Temp Temperature Indoor Air Intake Temp Outdoor Air Intake TempKMS0772 Unit Specifications208V KMS0972 KMS0972 KMS1272 KMS1272 KMS1872 KMS1872 KMS2472 KMS2472 Indoor Unit Major Component SpecificationsCB-KMS0972 CB-KMS1272 CB-KMS1872 CB-KMS2472 Temperature F C Other Component SpecificationsResistance k ohm KMS0972 KMS1272 Dimensional DataIndoor Unit KMS1872 KMS2472 Indoor Unit KMS0772 KMS0972 KMS1272 Indoor unit Refrigerant Flow DiagramPerformance Data Air Throw Distance ChartsIndoor Unit Indoor Unit Indoor Unit Indoor Unit Indoor Unit KMS0772 KMS0972 KMS1272 Electric Wiring Diagrams8FA2-5257-70500-0 Emergency operation Operation FunctionsPAM- control Lamp colors Timer backupFreeze prevention Protective FunctionsMethod of Self-Diagnostics Precautions before Performing Inspection or RepairBlinking On Illuminated Self-diagnostics LampsCode Diagnostics item Indication on indoor unitReplace the circuit board or the fuse Replace the controllerChecking the serial communications Using the TEST/T-RUN terminalsChecking the Indoor and Outdoor Units Checking the indoor unit Control Check items unit operationIndoor Fan Motor Trouble Diagnosis of Fan MotorLocations most susceptible to noise Trouble Correction Noise Malfunction and Electromagnetic InterferenceNoise malfunction Electromagnetic interferenceKMS0772 KMS0972 KMS1272 KMS1872 KMS2472 Features Alert Symbols ContentsProduct Information Safety Instructions Installation LocationElectrical Requirements Names of Parts Quiet lamp Unit Display and Operation ButtonRemote Control Unit Display Transmitter Remote Control UnitHR. Timer button Advance buttonDRY ACL button ALL Clear Using the Remote Control UnitHow to Install Batteries Temperature Display Selector buttonUsing the Remote Control Unit Operation Operation with the Remote Control UnitPress the ON/OFF operation button Operation with the Remote Control UnitNight Setback Mode is used for saving energy Cooling and DRY ModeQuiet Mode Special Remarks Power failure during operationClicking sound is heard from the air conditioner Operation Indication Setting the TimerTo cancel a timer program Press the Cancel button Setting the Timer1030 pm 710 am 1100 am Present time Operation together with the Daily ON/OFF Repeat Timer Using the 1-Hour OFF TimerSetting procedure Cancellation procedureSweep function Adjusting the Airflow DirectionSetting the airflow manually HorizontalControl Unit Care and CleaningWhen the air conditioner is not running Operation without the RemoteAir intake grille Care and CleaningHow to remove the anti-mold filter How to replace the anti-mold filterWashing the grille with water How to clean the air clean filterHow to install the air clean filter Cleaning the negative ion generatorOperating Range TroubleshootingTrouble Possible Cause Remedy Appendix B Installation Instructions For Indoor Unit Contents…In a Room For safe installation and trouble-free operation, you mustPlease Read Before Starting …In a Ceiling or WallGeneral Additional Materials Required for Installation Installation Site Selection150 L1+L2+L3+L4 230 Embedding the Tubing and WiringRemove the Rear Panel from the Unit How to Install the Indoor UnitMake a Hole If Wooden Wall Install the Rear Panel on the WallIf Block, Brick, Concrete or Similar Type Wall Cut by the sharp aluminum fins How to remove the grilleHow to replace the grille Be sure to wear work glovesIndoor unit types KMS1872, KMS2472 Shape the Indoor Side Tubing Wiring Instructions General precautions on wiringWiring Instructions for Inter-unit Connections For Outdoor Unit For solid core wiring or F-cable Loose wiring may causeFore, be sure all wiring is How to connect wiring to the terminal For Indoor UnitRight-side tubing MountingLeft-side tubing Switching drain hose and drain capDrain cap Risk of Electric Shock To unmount indoor unitOperation lamp Timer lamp Quiet lamp ION lamp How to Test Run the Air ConditionerMounting on a Wall Remote Control Unit Installation PositionAddress Setting of the Remote Control Unit Address SwitchInstallation Check Sheet Connecting a Home Automation device