Sanyo KMS1872 service manual CB-KMS2472

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Indoor Unit			KMS2472

Control PCB

	Part No.					CB-KMS2472
	Controls					Microprocessor
	Control Circuit Fuse					250V 3A

Remote Control Unit						RCS-4VPIS4U

Fan

	Type					Cross-Flow
	Q'ty ... Dia. and Length			inch (mm)		1 ... D3-11/16 / L33-9/ 32 (D94 / L845)

Fan Motor

	Type					DC Motor
	Model ... Q'ty					SIC-39CVL-D847-2 ... 1
	No. of Poles					8
	Rough Measure RPM (Cool)					1,300
	Nominal Output				W	30
	Coil Resistance				Ohm	-
	(Ambient Temp. 68 oF (20 oC))
	Safety Device
			Type			Internal Controller
			Over- Current Protection			Yes
			Over- Heat Protection			Yes
	Run Capacitor				Micro F	-
					VAC

Flap Motor

	Type					Stepping Motor
	Model					MP24Z3
	Rating					DC 12V
	Coil Resistance				Ohm	Each Pair of Terminal : 400+/-7%
	(Ambient Temp. 77 oF (25 oC))

Heat Exchanger Coil

	Coil					Aluminum Plate Fin / Copper Tube
	Rows					2
	Fins per inch					19.5
	Face Area				ft2 (m2)	3.07 (0.285)

DATA SUBJECT TO CHANGE WITHOUT NOTICE.

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Contents Capacity Indoor Model No Product Code No 500BTU / h KMS0772 000BTU / h KMS097211,900BTU / h KMS1272 17,500BTU / h KMS1872Please Read Before Starting Table of Contents Applicable MULTI-OUTDOOR Units Temperature Indoor Air Intake Temp Outdoor Air Intake Temp Indoor Air Intake Temp Outdoor Air Intake TempUnit Speciﬁcations KMS0772208V KMS0972 KMS0972 KMS1272 KMS1272 KMS1872 KMS1872 KMS2472 KMS2472 Major Component Speciﬁcations Indoor UnitCB-KMS0972 CB-KMS1272 CB-KMS1872 CB-KMS2472 Resistance k ohm Other Component SpecificationsTemperature F C Dimensional Data KMS0972 KMS1272Indoor Unit KMS1872 KMS2472 Refrigerant Flow Diagram Indoor Unit KMS0772 KMS0972 KMS1272 Indoor unitAir Throw Distance Charts Performance DataIndoor Unit Indoor Unit Indoor Unit Indoor Unit Electric Wiring Diagrams Indoor Unit KMS0772 KMS0972 KMS12728FA2-5257-70500-0 PAM- control Operation FunctionsEmergency operation Timer backup Lamp colorsProtective Functions Freeze preventionPrecautions before Performing Inspection or Repair Method of Self-DiagnosticsSelf-diagnostics Lamps Code Diagnostics itemIndication on indoor unit Blinking On IlluminatedReplace the controller Replace the circuit board or the fuseUsing the TEST/T-RUN terminals Checking the Indoor and Outdoor UnitsChecking the indoor unit Control Check items unit operation Checking the serial communicationsTrouble Diagnosis of Fan Motor Indoor Fan MotorNoise Malfunction and Electromagnetic Interference Noise malfunctionElectromagnetic interference Locations most susceptible to noise Trouble CorrectionKMS0772 KMS0972 KMS1272 KMS1872 KMS2472 Features Product Information ContentsAlert Symbols Electrical Requirements Installation LocationSafety Instructions Names of Parts Unit Display and Operation Button Quiet lampRemote Control Unit Display Remote Control Unit HR. Timer buttonAdvance button TransmitterDRY Using the Remote Control Unit How to Install BatteriesTemperature Display Selector button ACL button ALL ClearUsing the Remote Control Unit Operation with the Remote Control Unit OperationOperation with the Remote Control Unit Press the ON/OFF operation buttonCooling and DRY Mode Night Setback Mode is used for saving energyQuiet Mode Clicking sound is heard from the air conditioner Power failure during operationSpecial Remarks Setting the Timer Operation Indication1030 pm 710 am 1100 am Present time Setting the TimerTo cancel a timer program Press the Cancel button Using the 1-Hour OFF Timer Setting procedureCancellation procedure Operation together with the Daily ON/OFF Repeat TimerAdjusting the Airflow Direction Setting the airflow manuallyHorizontal Sweep functionCare and Cleaning When the air conditioner is not runningOperation without the Remote Control UnitCare and Cleaning How to remove the anti-mold filterHow to replace the anti-mold filter Air intake grilleHow to clean the air clean filter How to install the air clean filterCleaning the negative ion generator Washing the grille with waterTrouble Possible Cause Remedy TroubleshootingOperating Range Appendix B Installation Instructions Contents For Indoor UnitFor safe installation and trouble-free operation, you must Please Read Before Starting…In a Ceiling or Wall …In a RoomGeneral Installation Site Selection Additional Materials Required for InstallationEmbedding the Tubing and Wiring 150 L1+L2+L3+L4 230Make a Hole How to Install the Indoor UnitRemove the Rear Panel from the Unit If Block, Brick, Concrete or Similar Type Wall Install the Rear Panel on the WallIf Wooden Wall How to remove the grille How to replace the grilleBe sure to wear work gloves Cut by the sharp aluminum finsIndoor unit types KMS1872, KMS2472 Wiring Instructions General precautions on wiring Shape the Indoor Side TubingWiring Instructions for Inter-unit Connections Loose wiring may cause Fore, be sure all wiring isHow to connect wiring to the terminal For Indoor Unit For Outdoor Unit For solid core wiring or F-cableMounting Right-side tubingDrain cap Switching drain hose and drain capLeft-side tubing To unmount indoor unit Risk of Electric ShockHow to Test Run the Air Conditioner Operation lamp Timer lamp Quiet lamp ION lampRemote Control Unit Installation Position Mounting on a WallAddress Switch Address Setting of the Remote Control UnitConnecting a Home Automation device Installation Check Sheet