Sanyo KHS3682 + CH3682, KHS3082 + CH3082 service manual Please Read Before Starting

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IMPORTANT!

Please Read Before Starting

This air conditioning system meets strict safety and operating standards. As the installer or service person, it is an important part of your job to install or service the system so it operates safely and efficiently.

For safe installation and trouble-free operation, you must:

Carefully read this instruction booklet before beginning.

Follow each installation or repair step exactly as shown.

Observe all local, state, and national electrical codes.

Pay close attention to all warning and caution notices given in this manual.

This symbol refers to a hazard

or unsafe practice which can WARNING result in severe personal injury

or death.

This symbol refers to a hazard or unsafe practice which can

CAUTION result in personal injury or prod- uct or property damage.

If Necessary, Get Help

These instructions are all you need for most installation sites and maintenance conditions. If you require help for a special problem, contact our sales/service outlet or your certified dealer for additional instructions.

In Case of Improper Installation

The manufacturer shall in no way be responsible for improp- er installation or maintenance service, including failure to follow the instructions in this document.

SPECIAL PRECAUTIONS

WARNING

When Wiring

 

ELECTRICAL SHOCK CAN CAUSE SEVERE PERSONAL INJURY OR DEATH. ONLY A QUALIFIED, EXPERIENCED ELECTRICIAN SHOULD ATTEMPT TO WIRE THIS SYSTEM.

Do not supply power to the unit until all wiring and tubing are completed or reconnected and checked.

Highly dangerous electrical voltages are used in this system. Carefully refer to the wiring diagram and these instructions when wiring. Improper connections and inadequate grounding can cause accidental injury or death.

Ground the unit following local electrical codes.

Connect all wiring tightly. Loose wiring may cause over- heating at connection points and a possible fire hazard.

When Transporting

Be careful when picking up and moving the indoor and out- door units. Get a partner to help, and bend your knees when lifting to reduce strain on your back. Sharp edges or thin alu- minum fins on the air conditioner can cut your fingers.

When Installing…

…In a Ceiling or Wall

Make sure the ceiling/wall is strong enough to hold the unit’s weight. It may be necessary to construct a strong wood or metal frame to provide added support.

…In a Room

Properly insulate any tubing run inside a room to prevent “sweating” that can cause dripping and water damage to walls and floors.

…In Moist or Uneven Locations

Use a raised concrete pad or concrete blocks to provide a solid, level foundation for the outdoor unit. This prevents water damage and abnormal vibration.

…In an Area with High Winds

Securely anchor the outdoor unit down with bolts and a metal frame. Provide a suitable air baffle.

…In a Snowy Area

Install the outdoor unit on a raised platform that is higher than drifting snow. Provide snow vents.

When Connecting Refrigerant Tubing

Use the flare method for connecting tubing.

Apply refrigerant lubricant to the matching surfaces of the flare and union tubes before connecting them, then tighten the nut with a torque wrench for a leak-free connection.

Check carefully for leaks before starting the test run.

When Servicing

Turn the power OFF at the main power box (mains) before opening the unit to check or repair electrical parts and wiring.

Keep your fingers and clothing away from any moving parts.

Clean up the site after you finish, remembering to check that no metal scraps or bits of wiring have been left inside the unit being serviced.

CAUTION

Others

Ventilate any enclosed areas when installing or testing the refrigeration system. Escaped refrigerant gas, on contact with fire or heat, can produce dangerously toxic gas.

Confirm upon completing installation that no refrigerant gas is leaking. If escaped gas comes in contact with a stove, gas water heater, electric room heater or other heat source, it can produce dangerously toxic gas.

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Contents Indoor Model No. Product Code No Destination North AmericaSafety Precautions Prohibit Table of Contents Checking Electrical Components Operating Range Indoor Air Intake Temp Outdoor Air Intake TempSpecifications Unit SpecificationsKHS3082 CH3082208V KHS3682 CH368221.9 19.9 Major Component Specifications Indoor UnitCB-KHS3682 Microprocessor 250V 3A Outdoor Unit Outdoor Unit CH3082Board CompressorOutdoor Unit CH3682 Other Component Specifications Dimensional Data Indoor Unit KHS3082Inchmm Refrigerant Flow Diagram Refrigerant Flow DiagramTemperature Charts Low pressure performance chartOperating current performance chart Indoor discharge air performance chartHigh pressure performance chart Wide Outdoor inlet air D.B. temp. FC Cooling Capacity Indoor OutdoorCooling Capacity Indoor34,000 BTU/h Power Supply 230V Single Phase 60Hz Cooling Capacity IndoorTH Total Heating Capacity BTU/h Power Supply 230V Single Phase 60Hz Heating CapacityHeating Capacity 36,000 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 DataCH3082 Voltage230V Cooling Voltage208V CoolingCH3682 Voltage230V Cooling 8FA2-5250-70400-3 Electric Wiring DiagramsKHS3082 KHS3682 HIC Functions Operation FunctionsEmergency operation Auto cooling/heating operationTimer backup Lamp colorsOperation Sound Switching Procedure to Noise Reducing ControlNoise Reducing Control Outdoor Unit Maximum Current Value Change Procedure Maximum Current Value Change FunctionDescription of function CH3682Compressor discharge temperature control Protective FunctionsOverload prevention during heating 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 Serial Communication Error Identification Procedure Alarm Code E05Off Blinking Illuminated Before the OperationTerminal board Outdoor Unit Alarm Code E07/P04/P05/P20/P27 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 ExampleRecharging Case Refrigerant is LeakingWelding leaking points When Tubes are Extended Charging Additional RefrigerantRetro-Fitting Existing Systems Use of Existing UnitsOI-852-6-4181-149-00-0 Mode D’EMPLOI Pub. OI-85264181149000 SanyoFeatures ContentsAlert Symbols Installation LocationSafety Instructions Product InformationNames of Parts Unit Display and Operation ButtonRemote Control Unit Display SymbolsRemote Control Unit HR. Timer button 1-HOUR OFF Timer Temperature setting buttons TempMode selector button High Power buttonUsing the Remote Control Unit Air conditioner Indoor unit Receiver Remote control unitACL button 16 mmOperation with the Remote Control Unit Automatic OperationCooling and DRY Mode Heating ModeAutomatic fan speed Manual fan speedHigh Power Mode Unoccupied Indication StatusSpecial Remarks Setting the Timer Operation IndicationUsing the 1-HOUR OFF Timer Tips for Energy SavingDo not 1030 pm 710 am 1100 am Present timeAdjusting the Airflow Direction Operation Without the Remote Control UnitCare and Cleaning When the air conditioner is not runningAir Clean Filter How to install the air clean filterHow to clean the air clean filter Cleaning the main unit and remote control unitTroubleshooting Wired Remote ControllerOperating Range Washing the front panel with waterAppendix 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 Precautions for Installation in a Snowy Area Countermeasures against snow and windUnit inch Front and both sides must remain open Installation with intakes facing outletsRequired space around the outdoor unit Unit Obstacle to the front of unit Top is open Single-unit installationMultiple-unit installation 2 or more units Installation in front-rear rows Obstacles to the front and rear of unitHow to Install the Indoor Unit Trical wiring or conduits areRemove the Rear Panel from the Unit Make a HoleInstall the Rear Panel on the Wall If Wooden WallIf Block, Brick, Concrete or Similar Type Wall Hole DiaHow to replace the grille Removing and Installing the GrilleHow to remove the grille Wiring Instructions General precautions on wiring Shape the Indoor Side TubingWire Size and Length 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 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 Frame Fastening MethodHow to Install the Outdoor Unit First refer to . Installation Site SelectionWiring Instructions for the Outdoor Unit Routing the Tubing and WiringFlaring Procedure with a Flare Tool Refrigerant TubingUse of the Flaring Method If the special R410A flare tool is usedConnecting Tubing between Indoor and Outdoor Units Finishing the InstallationInsulation of Refrigerant Tubing Taping the TubesAir Purging Attempting to turn the valve Be sure to completely insertHex wrench before How to Test Run the Air Conditioner Basic Functions of the Service Valves Pump DownService Valve Connections Remote Control Unit Installation PositionAddress Switch Address Setting of the Remote Control Unit