CB-KHS2472 Microprocessor 250V 3A | Sanyo CH1872, CH2472 instruction

Indoor Unit

KHS2472

Control PCB

Part No.

Controls

Control Circuit Fuse

Remote Control Unit

Fan

CB-KHS2472

Microprocessor

250V 3A

RCS-4HVPIS4U

Type
Q'ty ... Dia. and Length	inch (mm)

Cross-Flow

1 ... D3-11/16 / L33-9/32 (D94/L845)

Fan Motor
	Type			DC Motor
	Model ... Q'ty			SIC-39CVL-D847-2-A ... 1
	No. of Poles			8
	Rough Measure RPM (Cool / Heat)			1,500 / 1,550
	Nominal Output		W	30
	Coil Resistance		Ohm	-
	(Ambient Temp. 68 °F (20 °C))
	Safety Device
		Type		Internal Controller
		Over-Current Protection		Yes
		Over-Heat Protection		Yes
	Run Capacitor		Micro F	-
			VAC	-

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

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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Sanyo CH1872, CH2472 service manual CB-KHS2472 Microprocessor 250V 3A

Contents

Indoor Model No. Product Code No DC Inverter Split System AIR Conditioner Please Read Before Starting Table of Contents Checking Electrical Components Indoor Air Intake Temp Outdoor Air Intake Temp Operating Range CH1872 SpecificationsUnit Specifications KHS1872 208V CH2472 KHS2472 12.1 13.5 Indoor Unit Major Component Specifications CB-KHS2472 Microprocessor 250V 3A External Finish Outdoor UnitOutdoor Unit CH1872 Compressor Outdoor Unit CH2472 Outdoor air temp sensor Other Component SpecificationsIndoor heat exchanger sensor Compressor temp sensor Indoor Unit KHS1872 Dimensional Data 11-17/32 23-15/16 35-7/16900 After a tube has been insulated To break or crack Refrigerant Flow DiagramRefrigerant Flow Diagram Insulation of Refrigerant Tubing Indoor discharge air performance chart Temperature ChartsLow pressure performance chart Operating current performance chart High pressure performance chart Wide 73F Cooling Capacity Power Supply 230V Single Phase 60Hz Cooling Capacity 24,200 BTU/h Indoor Outdoor Cooling Capacity Low Ambient 24,200 BTU/h TH Total Heating Capacity BTU/h Power Supply 230V Single Phase 60Hz Heating CapacityHeating Capacity 29,000 BTU/h Heating Vertical distance ft Air Throw Distance ChartsCooling Vertical distance ft Room air temp F 26.7C Fan speed High Horizontal distance ft Heating Voltage208V Cooling Electrical CharacteristicsElectrical Data CH1872 Voltage230V Cooling CH2472 Voltage230V Cooling 8FA2-5257-70500-0 Electric Wiring DiagramsIndoor Unit KHS1872 KHS2472 WHT WHT YEL YEL Button Operation HR.TIMER button ACL Reset button MaintenanceAddress Setting of the Remote Control Unit How to Connect How to Disconnect Auto cooling/heating operation FunctionsOperation Functions Emergency operation Lamp colors Timer backup Freeze prevention Compressor discharge temperature controlProtective Functions Overload prevention during heating Reverse-Cycle Defrosting Defrost detection and releaseCT Peak current cut-off control Method of Self-Diagnostics TroubleshootingPrecautions before Performing Inspection or Repair Self-diagnostics Lamps Replace the circuit board or the fuse NormalReplace the controller Checking the indoor unit Control Check items unit operation Using the TEST/T-RUN terminalsChecking the Indoor and Outdoor Units Condition E01 Serial Communication Error Identification ProcedureOff Blinking Illuminated Before the Operation Terminal board Outdoor Unit Condition E12 Indoor Fan Motor Trouble Diagnosis of Fan Motor Outdoor Fan Motor Locations most susceptible to noise Trouble Correction Noise Malfunction and Electromagnetic InterferenceNoise malfunction Electromagnetic interference Measurement of Insulation Resistance for Electrical Parts Power Supply CordChecking Electrical Components Measurement of Insulation Resistance Checking Continuity of Fuse on PCB Assy Characteristics Refrigerant R410A Special Precautions When Servicing UnitCharacteristics of New Refrigerant R410A What is New Refrigerant R410A? Checklist before Servicing Tools Specifically for R410A Tubing Installation Procedures Case of Compressor Malfunction Procedure for Replacing Compressor Example Never charge a large amountUnit. This may cause Damage to the compressor Recharging Case Refrigerant is LeakingWelding leaking points Use of Existing Units When Tubes are ExtendedCharging Additional Refrigerant Retro-Fitting Existing Systems OI-852-6-4180-801-00-2 Features Product Information ContentsAlert Symbols Electrical Requirements Installation LocationSafety Instructions Names of Parts Quiet lamp Unit Display and Operation Button Remote Control Unit Display Transmitter Remote Control UnitHR. Timer button Advance button FAN Speed selector button Quiet button Button Time Display Selector button Using the Remote Control UnitTemperature Display Selector How to Install Batteries Using the Remote Control Unit Press the ON/OFF operation button Operation with the Remote Control Unit Set the FAN Speed selector button to the setting you want Operation with the Remote Control UnitPress the Mode selector button and select the desired mode Press the TEMP. setting buttons to change the temperature Adjusting the Fan Speed Night Setback Mode is used for saving energy Cooling and DRY Mode Quiet Mode Special Remarks Operation Indication Setting the TimerExample To set to 1030 pm 1030 pm 710 am 1100 am Present time Setting the TimerHow to set the on time Example To start operation at 710 am To cancel a timer program Press the Cancel button Operation together with the Daily ON/OFF Repeat Timer Using the 1-Hour OFF TimerSetting procedure Cancellation procedure Sweep function Adjusting the Airflow DirectionSetting the airflow manually Horizontal When the air conditioner is not running Operation without the Remote Control UnitCare and Cleaning Intake grille Care and CleaningCleaning Grasp both ends of the air Negative ion generator metal electrodes inside plastic case Follow the steps below when the generator has become dirty Max DB / 71 F WB Min DB / 57 F WB TroubleshootingOperating Range Trouble Possible Cause Remedy Appendix B Installation Instructions Contents Installation Instructions Please Read Before Starting Optional Copper Tubing Kit Tools Required for Installation not suppliedAccessories Supplied with Unit Table General Additional Materials Required for Installation Installation Site Selection Solid base must not cover the hole of the bottom plate Make a Hole How to Install the Indoor UnitTrical wiring or conduits are Remove 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 replace the grille Remove the Grille to Install the Indoor UnitHow to remove the grille Shape the Indoor Side Tubing Wiring Instructions General precautions on wiring AWG Recommended Wire Length and Diameter Wiring Instructions for Inter-unit Connections For stranded wiring How to connect wiring to the terminal For Indoor UnitFor Outdoor Unit For solid core wiring or F-cable Right-side tubing Mounting Drain cap Switching drain hose and drain capLeft-side tubing Unit or operate it until all Do not supply power toTubing and wiring to the out To unmount indoor unit Wiring Instructions for the Outdoor Unit How to Install the Outdoor UnitFirst refer to . Installation Site Selection Use of the Flaring Method Flaring Procedure with a Flare ToolTo 0.5 mm Adjust so that the amount of tube Refrigerant Tubing To prevent heat loss and wet floors due to dripping of con Connecting Tubing between Indoor and Outdoor UnitsFinishing the Installation Insulation of Refrigerant Tubing Air Purging Attempting to turn the valve Be sure to completely insertHex wrench before How to Test Run the Air Conditioner Pump Down Basic Functions of the Service ValvesWhen opening or clos Ing the service valve Stem, use the accessory Mounting on a Wall Remote Control Unit Installation Position Address Setting of the Remote Control Unit Address Switch

KHS2472

Remote Control Unit

CB-KHS2472

Microprocessor

250V 3A

Fan Motor

Flap Motor

Heat Exchanger Coil

DATA SUBJECT TO CHANGE WITHOUT NOTICE.