Sanyo CH1271, CH0971 service manual Major Component Specifications, Indoor Unit

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2-2. Major Component Specifications

2-2-1. Indoor Unit

Indoor Unit

KHS0971

Control PCB

Part No.

Controls

Control Circuit Fuse

Remote Control Unit

Fan

CB-KHS0971

Microprocessor

250V 3A

RCS-4HVPIS4U

Type

 

Q'ty ... Dia. and Length

inch (mm)

Cross-Flow

1 ... D3-11/16 / L24-31/32 (D94/L634)

Fan Motor

 

 

 

 

Type

 

 

AC Motor

 

Model ... Q'ty

 

 

IBH-884-076 ... 1

 

No. of Poles

 

 

4

 

Rough Measure RPM (Cool / Heat)

 

 

1,200 / 1,250

 

Nominal Output

 

W

16

 

Coil Resistance

 

Ohm

BRN-WHT : 57.9

 

(Ambient Temp. 68 °F (20 °C))

 

 

RED-WHT : 55.2

 

Safety Device

 

 

 

 

 

Type

 

 

Thermal Fuse

 

 

Operating Temp.

Open °F (°C)

266 (130)

 

 

 

Close °F (°C)

-

 

Run Capacitor

 

Micro F

4.5

 

 

 

 

VAC

250

 

 

 

 

 

 

Flap Motor

 

 

 

 

Type

 

 

Stepping Motor

 

Model

 

 

MP24Z3

 

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)

2.02 (0.188)

DATA SUBJECT TO CHANGE WITHOUT NOTICE.

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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 SpecificationsKHS0971 CH0971KHS1271 CH1271Major Component Specifications Indoor UnitCB-KHS1271 Microprocessor 250V 3A Outdoor Unit Outdoor Unit CH0971Compressor External FinishOutdoor Unit CH1271 Other Component Specifications Indoor heat exchanger sensorCompressor temp sensor Outdoor air temp sensorDimensional Data Indoor Unit KHS097121-3/16 10-13/16 Refrigerant Flow Diagram Refrigerant Flow DiagramInsulation of Refrigerant Tubing After a tube has been insulated To break or crackTemperature Charts Performance DataHigh pressure performance chart Indoor Unit KHS1271 Outdoor Unit CH1271 493 Tube service Power Supply 115V Single Phase 60Hz Cooling Capacity Cooling Capacity11,900 BTU/h Cooling Capacity Low Ambient SHC Sensible Heat Capacity BTU/h TH Total Heating Capacity BTU/h Power Supply 115V Single Phase 60Hz Heating CapacityHeating Capacity 14,300 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 CH0971 Cooling Electrical CharacteristicsElectrical Data 8FA2-5257-71600-0 Electric Wiring DiagramsIndoor Unit KHS0971 KHS1271 Outdoor Unit CH0971 CH1271 WHT REDMaintenance Address Setting of the Remote Control UnitON/OFF operation button HR.TIMER button ACL Reset button ION buttonHow to Disconnect How to ConnectFunctions Operation FunctionsEmergency operation Auto cooling/heating operationTimer backup Lamp colorsCompressor discharge temperature control Protective FunctionsOverload prevention during heating Cold-air prevention during heatingReverse-Cycle Defrosting Defrost detection and releaseCT Peak current cut-off control Method of Self-Diagnostics TroubleshootingPrecautions before Performing Inspection or Repair Self-diagnostics Lamps Indoor UnitUsing the TEST/T-RUN terminals Checking the Indoor and Outdoor UnitsReplace the controller Replace the circuit board or the fuseSerial Communication Error Identification Procedure Off Blinking IlluminatedBefore the Operation Condition E01Terminal board Outdoor Unit Condition E12 Trouble Diagnosis of Fan Motor Outdoor Fan MotorNoise 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 ExampleRecharging Case Refrigerant is LeakingWelding leaking points When Tubes are Extended Charging Additional RefrigerantRetro-Fitting Existing Systems Use of Existing UnitsOI-852-6-4180-802-00-2 Features Product Information ContentsAlert Symbols Electrical Requirements Installation LocationSafety Instructions Names of Parts Outdoor UnitUnit Display and Operation Button Quiet lampRemote Control Unit Display On Time Remote Control UnitHour OFF Timer Auto HeatDRY CoolUsing the Remote Control Unit Temperature Display SelectorHow to Install Batteries Button Time Display Selector buttonUsing the Remote Control Unit Press the ON/OFF operation button Operation with the Remote Control UnitStep Operation 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 Operation Indication Setting the TimerExample To set to 1030 pm 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 Cool Sweep DRY FAN HeatWhen the air conditioner is not running Operation without the Remote Control UnitCare and Cleaning 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 KitAvoid Installation Site SelectionAdditional Materials Required for Installation Solid base must not cover Hole of the bottom plateHow to Install the Indoor Unit Trical wiring or conduits areRemove the Rear Panel from the Unit Make a HoleIf Block, Brick, Concrete or Similar Type Wall Install the Rear Panel on the WallIf Wooden Wall Remove the Grille to Install the Indoor Unit How to replace the grilleWiring Instructions General precautions on wiring Shape the Indoor Side TubingRecommended Wire Length and Diameter Wiring System DiagramWiring 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 Do not supply power to Tubing and wiring to the outTo unmount indoor unit Unit or operate it until allWiring Instructions for the Outdoor Unit How to Install the Outdoor UnitFirst refer to . Installation Site Selection 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 Air Purging with a Vacuum Pump for Test RunTem. The valve core is similar to Those used in automobile tiresBe sure to completely insert Hex wrench beforeThis may cause the refriger Ant gas to leak. In order toHow to Test Run the Air Conditioner Operation lamp Timer lamp Quiet lamp ION lampBasic Functions of the Service Valves Pump DownRemote Control Unit Installation Position Mounting on a WallAddress Switch Address Setting of the Remote Control Unit
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