Sanyo CH2472, CH1872 service manual 24,200 BTU/h

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Indoor Unit		: KHS2472
Outdoor Unit		: CH2472
Power Supply : 230V Single Phase 60Hz
	< Cooling Capacity (Low Ambient) >

		RATING CAPACITY:		24,200 BTU/h				AIR FLOW RATE:				600 CFM
		INDOOR						OUTDOOR
		ENT. TEMP. oF (oC)						AMBIENT TEMP. oF (oC)
		W.B.	D.B.			0	5	15	25		35	45	55
						(-17.8)	(-15.0)	(-9.4)	(-3.9)		(1.7)	(7.2)	(12.8)
				TC		20,890	20,930	20,770	20,940		20,890	20,850	20,890

			72 (22.2)	SHC		15,200	15,200	15,200	15,320		15,200	15,200	15,200
		59	76 (24.4)	SHC		17,180	17,180	17,070	17,180		17,180	17,180	17,180
		(15.0)	80 (26.7)	SHC		19,160	19,160	19,050	19,160		19,160	19,160	19,160
			84 (28.9)	SHC		20,890	20,930	20,770	20,940		20,890	20,850	20,890
			88 (31.1)	SHC		20,890	20,930	20,770	20,940		20,890	20,850	20,890
				TC		20,710	20,780	20,760	21,120		21,130	21,160	21,310

			72 (22.2)	SHC		12,400	12,400	12,400	12,640		12,640	12,640	12,750
		63	76 (24.4)	SHC		14,380	14,380	14,380	14,500		14,500	14,500	14,620
		(17.2)	80 (26.7)	SHC		16,370	16,370	16,370	16,480		16,600	16,600	16,600
			84 (28.9)	SHC		18,230	18,350	18,230	18,470		18,470	18,470	18,580
			88 (31.1)	SHC		20,210	20,210	20,210	20,330		20,330	20,450	20,450
				TC		20,300	20,400	20,560	21,150		21,250	21,360	21,620

			72 (22.2)	SHC		9,610	9,610	9,610	9,950		9,950	9,950	10,070
		67	76 (24.4)	SHC		11,470	11,470	11,590	11,820		11,820	11,940	12,050
		(19.4)	80 (26.7)	SHC		13,450	13,570	13,570	13,800		13,920	13,920	14,040
			84 (28.9)	SHC		15,430	15,430	15,550	15,780		15,780	15,900	16,020
			88 (31.1)	SHC		17,300	17,420	17,420	17,650		17,770	17,770	17,880
				TC		19,590	19,740	20,120	21,010		21,200	21,410	21,820

			72 (22.2)	SHC		6,570	6,570	6,810	7,040		7,160	7,270	7,390
		71	76 (24.4)	SHC		8,440	8,560	8,670	9,020		9,020	9,140	9,370
		(21.7)	80 (26.7)	SHC		10,540	10,540	10,650	11,000		11,120	11,120	11,350
			84 (28.9)	SHC		12,400	12,520	12,640	12,990		12,990	13,100	13,220
			88 (31.1)	SHC		14,380	14,380	14,500	14,850		14,970	14,970	15,200
				TC		18,650	18,840	19,490	20,700		20,980	21,310	21,860
		75
		75	76 (24.4)	SHC		5,640	5,640	5,870	6,340		6,460	6,460	6,690
		(23.9)	80 (26.7)	SHC		7,620	7,740	7,860	8,320		8,440	8,560	8,670
			84 (28.9)	SHC		9,610	9,610	9,840	10,190		10,300	10,420	10,650
			88 (31.1)	SHC		11,470	11,590	11,700	12,170		12,290	12,400	12,520
				TC : Total Cooling Capacity (BTU/h)					SHC : Sensible Heat Capacity (BTU/h)

NOTE

1.Above data does not take Freeze Prevention Protection during cooling operation into account. For this reason, the value may vary from the actual cooling characteristics.

2.Above data represents the value when the operation frequency of a compressor is fixed.

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Contents DC Inverter Split System AIR Conditioner Indoor Model No. Product Code NoPlease Read Before Starting Table of Contents Checking Electrical Components Operating Range Indoor Air Intake Temp Outdoor Air Intake TempKHS1872 SpecificationsUnit Specifications CH1872208V KHS2472 CH247212.1 13.5 Major Component Specifications Indoor UnitCB-KHS2472 Microprocessor 250V 3A Compressor Outdoor UnitOutdoor Unit CH1872 External FinishOutdoor Unit CH2472 Compressor temp sensor Other Component SpecificationsIndoor heat exchanger sensor Outdoor air temp sensorDimensional Data Indoor Unit KHS187211-17/32 23-15/16 35-7/16900 Insulation of Refrigerant Tubing Refrigerant Flow DiagramRefrigerant Flow Diagram After a tube has been insulated To break or crackOperating current performance chart Temperature ChartsLow pressure performance chart Indoor discharge air performance chartHigh pressure performance chart Wide 73F Power Supply 230V Single Phase 60Hz Cooling Capacity Cooling Capacity24,200 BTU/h Cooling Capacity Low Ambient Indoor Outdoor24,200 BTU/h TH Total Heating Capacity BTU/h Power Supply 230V Single Phase 60Hz Heating CapacityHeating Capacity 29,000 BTU/h Room air temp F 26.7C Fan speed High Horizontal distance ft Air Throw Distance ChartsCooling Vertical distance ft Heating Vertical distance ftHeating CH1872 Voltage230V Cooling Electrical CharacteristicsElectrical Data Voltage208V CoolingCH2472 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 Disconnect How to ConnectEmergency operation FunctionsOperation Functions Auto cooling/heating operationTimer backup Lamp colorsOverload prevention during heating Compressor discharge temperature controlProtective Functions Freeze preventionReverse-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 Before the Operation Serial Communication Error Identification ProcedureOff Blinking Illuminated Condition E01Terminal board Outdoor Unit Condition E12 Trouble Diagnosis of Fan Motor Indoor Fan MotorOutdoor Fan Motor Electromagnetic interference Noise Malfunction and Electromagnetic InterferenceNoise malfunction Locations most susceptible to noise Trouble CorrectionMeasurement of Insulation Resistance Power Supply CordChecking Electrical Components Measurement of Insulation Resistance for Electrical PartsChecking Continuity of Fuse on PCB Assy What is New Refrigerant R410A? Refrigerant R410A Special Precautions When Servicing UnitCharacteristics of New Refrigerant R410A CharacteristicsChecklist before Servicing Tubing Installation Procedures Tools Specifically for R410AProcedure for Replacing Compressor Case of Compressor MalfunctionDamage to the compressor Never charge a large amountUnit. This may cause ExampleRecharging Case Refrigerant is LeakingWelding leaking points Retro-Fitting Existing Systems When Tubes are ExtendedCharging Additional Refrigerant Use of Existing UnitsOI-852-6-4180-801-00-2 Features Product Information ContentsAlert Symbols Electrical Requirements Installation LocationSafety Instructions Names of Parts Unit Display and Operation Button Quiet lampRemote Control Unit Display Advance button Remote Control UnitHR. Timer button TransmitterQuiet button FAN Speed selector buttonHow to Install Batteries Using the Remote Control UnitTemperature Display Selector Button Time Display Selector buttonUsing the Remote Control Unit Operation with the Remote Control Unit Press the ON/OFF operation buttonPress the TEMP. setting buttons to change the temperature Operation with the Remote Control UnitPress the Mode selector button and select the desired mode Set the FAN Speed selector button to the setting you wantAdjusting the Fan Speed Cooling and DRY Mode Night Setback Mode is used for saving energyQuiet Mode Special Remarks Operation Indication Setting the TimerExample To set to 1030 pm To cancel a timer program Press the Cancel button Setting the TimerHow to set the on time Example To start operation at 710 am 1030 pm 710 am 1100 am Present timeCancellation procedure Using the 1-Hour OFF TimerSetting procedure Operation together with the Daily ON/OFF Repeat TimerHorizontal Adjusting the Airflow DirectionSetting the airflow manually Sweep functionWhen the air conditioner is not running Operation without the Remote Control UnitCare and Cleaning Grasp both ends of the air Care and CleaningCleaning Intake grilleFollow the steps below when the generator has become dirty Negative ion generator metal electrodes inside plastic caseTrouble Possible Cause Remedy TroubleshootingOperating Range Max DB / 71 F WB Min DB / 57 F WBAppendix B Installation Instructions Installation Instructions ContentsPlease Read Before Starting General Tools Required for Installation not suppliedAccessories Supplied with Unit Table Optional Copper Tubing KitInstallation Site Selection Additional Materials Required for InstallationSolid base must not cover the hole of the bottom plate Remove the Rear Panel from the Unit How to Install the Indoor UnitTrical wiring or conduits are Make a HoleIf 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 Wiring Instructions General precautions on wiring Shape the Indoor Side TubingRecommended Wire Length and Diameter AWGWiring 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 Mounting Right-side tubingDrain cap Switching drain hose and drain capLeft-side tubing To unmount indoor unit Do not supply power toTubing and wiring to the out Unit or operate it until allWiring Instructions for the Outdoor Unit How to Install the Outdoor UnitFirst refer to . Installation Site Selection Refrigerant Tubing Flaring Procedure with a Flare ToolTo 0.5 mm Adjust so that the amount of tube Use of the Flaring MethodInsulation of Refrigerant Tubing Connecting Tubing between Indoor and Outdoor UnitsFinishing the Installation To prevent heat loss and wet floors due to dripping of conAir Purging Attempting to turn the valve Be sure to completely insertHex wrench before How to Test Run the Air Conditioner Stem, use the accessory Basic Functions of the Service ValvesWhen opening or clos Ing the service valve Pump DownRemote Control Unit Installation Position Mounting on a WallAddress Switch Address Setting of the Remote Control Unit