Sanyo CH1271, CH0971 service manual Auto, Heat, Dry, Cool, Fan

Page 62

Remote Control Unit (continued)

Temperature setting buttons Press the button to increase the set temperature.

(TEMP.) Press the button to reduce the set temperature.

The temperature setting changes by 1 °C or 2 °F each time one of the TEMP. buttons is pressed.

QUIET button

: When you press this button, the fan rotates slower than the fan speed

 

setting to provide a quieter operating sound.

 

MODE selector button Use this button to select AUTO, HEAT, DRY, COOL or FAN mode.

(AUTO)

: When this setting is selected, the air conditioner calculates the difference

 

between the thermostat setting and the room temperature and

 

automatically switches to the ‘‘COOL’’ or ‘‘HEAT’’ mode as appropriate.

(HEAT)

: The air conditioner makes the room warmer.

(DRY)

: The air conditioner reduces the humidity in the room.

(COOL)

: The air conditioner makes the room cooler.

(FAN)

: The air conditioner works only as a circulation fan.

 

 

FAN SPEED selector button

: The air conditioner automatically decides the fan speeds.

 

: High fan speed

 

: Medium fan speed

 

: Low fan speed

NIGHT SETBACK button For details, see “5. Night Setback Mode”. When you press this button in the HEAT, DRY or COOL mode, the mark appears in the display, and the remote control unit will automatically adjust the set temperature to save energy.

FLAP button Press this button either to select the setting of the airflow direction to the auto.

 

 

flap in each mode or one of the six possible positions manually or to select the

 

 

sweep function which moves the flap up and down automatically.

 

 

: Auto flap setting: If selected in a heating operation, the flap is set to

 

 

position (3) in the following chart. If selected in a cooling or dry operation,

 

 

the flap is set at position (7) in the following chart.

 

 

: The airflow direction can be set manually. (six positions)

 

 

: The flap moves up and down automatically.

 

 

When you press the FLAP button, the air flow direction will be changed one by

 

NOTE

 

 

one as follows.

 

 

 

 

SWEEP

 

 

 

HIGH POWER button

: If this button is pressed during HEAT, DRY, COOL or FAN operation, the

 

 

unit operates at maximum output for 30 minutes, regardless of the desired

 

 

temperature.

 

 

The fan speed is 1 step above “High”.

 

 

 

ON TIME/OFF TIME setting No display: The timer does not operate.

buttons

: The air conditioner starts at the set time.

 

 

: The air conditioner stops at the set time.

 

 

: The air conditioner stops and starts, or starts and stops, at the

 

 

set times every day. For details, see “Setting the Timer”.

NOTE

The indoor fan runs continuously when the system is in normal operation. It does not turn off when the desired room temperature is reached. If Night Set Back mode is selected, the fan will turn off intermittently during cooling operation in order to control air flow.

OI-802-9EG

9

 

Image 62
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 TempKHS0971 SpecificationsUnit Specifications CH0971KHS1271 CH1271Major Component Specifications Indoor UnitCB-KHS1271 Microprocessor 250V 3A Compressor Outdoor UnitOutdoor Unit CH0971 External FinishOutdoor Unit CH1271 Compressor temp sensor Other Component SpecificationsIndoor heat exchanger sensor Outdoor air temp sensorDimensional Data Indoor Unit KHS097121-3/16 10-13/16 Insulation of Refrigerant Tubing Refrigerant Flow DiagramRefrigerant Flow Diagram 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 Room air temp F 26.7C Fan speed High Horizontal distance ft Air Throw Distance ChartsCooling Vertical 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 REDON/OFF operation button HR.TIMER button ACL Reset button MaintenanceAddress Setting of the Remote Control Unit ION buttonHow to Disconnect How to ConnectEmergency operation FunctionsOperation Functions Auto cooling/heating operationTimer backup Lamp colorsOverload prevention during heating Compressor discharge temperature controlProtective Functions 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 UnitReplace the controller Using the TEST/T-RUN terminalsChecking the Indoor and Outdoor Units Replace the circuit board or the fuseBefore the Operation Serial Communication Error Identification ProcedureOff Blinking Illuminated Condition E01Terminal board Outdoor Unit Condition E12 Trouble Diagnosis of Fan Motor Outdoor Fan MotorElectromagnetic 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-852-6-4180-802-00-2 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 DRY AutoHeat CoolHow to Install Batteries Using the Remote Control UnitTemperature Display Selector Button Time Display Selector buttonUsing the Remote Control Unit Press the ON/OFF operation button Operation with the Remote Control UnitStep Press 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 TimerAdjusting the Airflow Direction Cool Sweep DRY FAN HeatWhen 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 KitAvoid Installation Site SelectionAdditional Materials Required for Installation Solid base must not cover Hole of the bottom plateRemove 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 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 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 conTem. The valve core is similar to Air PurgingAir Purging with a Vacuum Pump for Test Run Those used in automobile tiresThis may cause the refriger Be sure to completely insertHex wrench before 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