Sanyo CH2472, CH1872 Installation Location, Electrical Requirements, Safety Instructions

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Installation Location

We recommend that this air conditioner be installed properly by qualified installation technicians in accordance with the Installation Instructions provided with the unit.

Before installation, check that the voltage of the electric supply in your home or office is the same as the voltage shown on the nameplate.

Do not install this air conditioner where there are fumes or flammable

gases, or in an extremely humid space such as a greenhouse.

Do not install the air conditioner where excessively high heat- generating objects are placed.

Avoid: To protect the air conditioner from heavy corrosion, avoid installing the outdoor unit where salty sea water can splash directly onto it or in sulphurous air near a spa.

Electrical Requirements

1.All wiring must conform to the local electrical codes. Consult your dealer or a qualified electrician for details.

2.Each unit must be properly grounded with a ground (or earth) wire or through the supply wiring.

3.Wiring must be done by a qualified electrician.

Safety Instructions

Read this Instruction Manual carefully before using this air conditioner. If you still have any difficulties or problems, consult your dealer for help.

This air conditioner is designed to give you comfortable room conditions. Use this only for its intended purpose as described in this Instruction Manual.

Never use or store gasoline or other flammable vapor or liquid near the

air conditioner — it is very dangerous.

This air conditioner has no ventilator for intaking fresh air from outdoors. You must open doors or windows frequently when you use gas or oil heating appliances in the same room, which consume a lot of oxygen from the air. Otherwise there is a risk of suffocation in an extreme case.

CAUTION

Do not turn the air conditioner on and off from the power mains switch. Use the ON/OFF operation button.

Do not stick anything into the air outlet of the outdoor unit. This is dangerous because the fan is rotating at high speed.

Do not let children play with the air conditioner.

Do not cool or heat the room too much if babies or invalids are present.

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OI-801-4-EG

 

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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