Sanyo CH2472, CH1872 service manual 29,000 BTU/h

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Indoor Unit

: KHS2472

 

 

 

 

 

 

 

 

 

Outdoor Unit

: CH2472

 

 

 

 

 

 

 

 

 

Power Supply : 230V Single Phase 60Hz

 

 

 

 

 

 

 

 

< Heating Capacity >

 

 

 

 

 

 

 

 

 

 

RATING CAPACITY:

29,000 BTU/h

 

AIR FLOW RATE:

 

653 CFM

 

 

OUTDOOR

 

 

 

 

 

INDOOR

 

 

 

 

ENT. TEMP. oF (oC)

 

 

 

 

AMBIENT TEMP. oF (oC)

 

 

 

 

 

W.B.

 

 

 

60

65

 

70

75

 

80

 

 

 

 

 

 

 

(15.6)

(18.3)

 

(21.1)

(23.9)

 

(26.7)

 

 

0

(-17.8)

 

TH

 

16,210

16,210

 

16,200

16,180

 

16,150

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3

(-16.1)

 

TH

 

16,750

16,750

 

16,740

16,720

 

16,690

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

8

(-13.3)

 

TH

 

18,050

18,050

 

18,040

18,010

 

17,980

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

13

(-10.6)

 

TH

 

19,390

19,390

 

19,380

19,350

 

19,320

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

18

(-7.8)

 

TH

 

20,870

20,860

 

20,850

20,820

 

20,780

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

23

(-5.0)

 

TH

 

22,420

22,410

 

22,390

22,360

 

22,320

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

28

(-2.2)

 

TH

 

24,030

24,020

 

24,000

23,960

 

23,910

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

33

(0.6)

 

TH

 

25,690

25,680

 

25,650

25,610

 

25,550

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

38

(3.3)

 

TH

 

27,330

27,320

 

27,280

27,230

 

27,160

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

43

(6.1)

 

TH

 

29,070

29,040

 

# 29,000

28,940

 

28,860

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

48

(8.9)

 

TH

 

30,820

30,790

 

30,740

30,670

 

30,580

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

53

(11.7)

 

TH

 

32,580

32,540

 

32,470

32,390

 

32,300

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

58

(14.4)

 

TH

 

34,260

34,210

 

34,140

34,050

 

32,390

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

63

(17.2)

 

TH

 

35,980

35,920

 

35,840

33,980

 

32,250

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

65

(18.3)

 

TH

 

36,640

36,580

 

35,780

33,880

 

32,150

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TH : Total Heating Capacity (BTU/h)

NOTE

1.Rating conditions (#) : Indoor Unit Entering Air Temp. 70 °F (21.1 °C) D.B.

:Outdoor Ambient Temp. 47 °F (8.3 °C) D.B. / 43 °F (6.1 °C) W.B.

2.Above data does not take Defrost Operation, Overload Prevention Protection, and/or Cold Air Prevention Protection during heating operation into account. For this reason, the value may vary from the actual heating characteristics.

3.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 TempSpecifications Unit SpecificationsKHS1872 CH1872208V KHS2472 CH247212.1 13.5 Major Component Specifications Indoor UnitCB-KHS2472 Microprocessor 250V 3A Outdoor Unit Outdoor Unit CH1872Compressor External FinishOutdoor Unit CH2472 Other Component Specifications Indoor heat exchanger sensorCompressor temp sensor Outdoor air temp sensorDimensional Data Indoor Unit KHS187211-17/32 23-15/16 35-7/16900 Refrigerant Flow Diagram Refrigerant Flow DiagramInsulation of Refrigerant Tubing After a tube has been insulated To break or crackTemperature Charts Low pressure performance chartOperating current 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 Heating Capacity Power Supply 230V Single Phase 60Hz Heating CapacityTH Total Heating Capacity BTU/h 29,000 BTU/h Air Throw Distance Charts Cooling Vertical distance ftRoom air temp F 26.7C Fan speed High Horizontal distance ft Heating Vertical distance ftHeating Electrical Characteristics Electrical DataCH1872 Voltage230V Cooling Voltage208V CoolingCH2472 Voltage230V Cooling Indoor Unit KHS1872 KHS2472 Electric Wiring Diagrams8FA2-5257-70500-0 WHT WHT YEL YEL Address Setting of the Remote Control Unit MaintenanceButton Operation HR.TIMER button ACL Reset button How to Disconnect How to ConnectFunctions Operation FunctionsEmergency operation Auto cooling/heating operationTimer backup Lamp colorsCompressor discharge temperature control Protective FunctionsOverload prevention during heating Freeze preventionCT Peak current cut-off control Defrost detection and releaseReverse-Cycle Defrosting Precautions before Performing Inspection or Repair TroubleshootingMethod of Self-Diagnostics Self-diagnostics Lamps Replace the controller NormalReplace the circuit board or the fuse Checking the Indoor and Outdoor Units Using the TEST/T-RUN terminalsChecking the indoor unit Control Check items unit operation Serial Communication Error Identification Procedure Off Blinking IlluminatedBefore the Operation Condition E01Terminal board Outdoor Unit Condition E12 Trouble Diagnosis of Fan Motor Indoor Fan MotorOutdoor Fan Motor Noise Malfunction and Electromagnetic Interference Noise malfunctionElectromagnetic interference Locations most susceptible to noise Trouble CorrectionPower Supply Cord Checking Electrical ComponentsMeasurement of Insulation Resistance Measurement of Insulation Resistance for Electrical PartsChecking Continuity of Fuse on PCB Assy Refrigerant R410A Special Precautions When Servicing Unit Characteristics of New Refrigerant R410AWhat is New Refrigerant R410A? CharacteristicsChecklist before Servicing Tubing Installation Procedures Tools Specifically for R410AProcedure for Replacing Compressor Case of Compressor MalfunctionNever charge a large amount Unit. This may causeDamage to the compressor ExampleWelding leaking points Case Refrigerant is LeakingRecharging When Tubes are Extended Charging Additional RefrigerantRetro-Fitting Existing Systems Use of Existing UnitsOI-852-6-4180-801-00-2 Features Alert Symbols ContentsProduct Information Safety Instructions Installation LocationElectrical Requirements Names of Parts Unit Display and Operation Button Quiet lampRemote Control Unit Display Remote Control Unit HR. Timer buttonAdvance button TransmitterQuiet button FAN Speed selector buttonUsing the Remote Control Unit Temperature Display SelectorHow to Install Batteries Button Time Display Selector buttonUsing the Remote Control Unit Operation with the Remote Control Unit Press the ON/OFF operation buttonOperation with the Remote Control Unit Press the Mode selector button and select the desired modePress the TEMP. setting buttons to change the temperature 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 Example To set to 1030 pm Setting the TimerOperation Indication Setting the Timer How to set the on time Example To start operation at 710 amTo cancel a timer program Press the Cancel button 1030 pm 710 am 1100 am Present timeUsing 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 Operation without the Remote Control UnitWhen the air conditioner is not running Care and Cleaning CleaningGrasp both ends of the air Intake grilleFollow the steps below when the generator has become dirty Negative ion generator metal electrodes inside plastic caseTroubleshooting Operating RangeTrouble Possible Cause Remedy Max DB / 71 F WB Min DB / 57 F WBAppendix B Installation Instructions Installation Instructions ContentsPlease Read Before Starting Tools Required for Installation not supplied Accessories Supplied with Unit TableGeneral Optional Copper Tubing KitInstallation Site Selection Additional Materials Required for InstallationSolid base must not cover the hole of the bottom plate How to Install the Indoor Unit Trical wiring or conduits areRemove the Rear Panel from the Unit Make a HoleIf Wooden Wall Install the Rear Panel on the WallIf Block, Brick, Concrete or Similar Type Wall How to remove the grille Remove the Grille to Install the Indoor UnitHow to replace the grille Wiring Instructions General precautions on wiring Shape the Indoor Side TubingRecommended Wire Length and Diameter AWGWiring Instructions for Inter-unit Connections For Outdoor Unit For solid core wiring or F-cable How to connect wiring to the terminal For Indoor UnitFor stranded wiring Mounting Right-side tubingLeft-side tubing Switching drain hose and drain capDrain cap Do not supply power to Tubing and wiring to the outTo unmount indoor unit Unit or operate it until allFirst refer to . Installation Site Selection How to Install the Outdoor UnitWiring Instructions for the Outdoor Unit Flaring Procedure with a Flare Tool To 0.5 mm Adjust so that the amount of tubeRefrigerant Tubing Use of the Flaring MethodConnecting Tubing between Indoor and Outdoor Units Finishing the InstallationInsulation of Refrigerant Tubing To prevent heat loss and wet floors due to dripping of conAir Purging Hex wrench before Be sure to completely insertAttempting to turn the valve How to Test Run the Air Conditioner Basic Functions of the Service Valves When opening or clos Ing the service valveStem, use the accessory Pump DownRemote Control Unit Installation Position Mounting on a WallAddress Switch Address Setting of the Remote Control Unit