Sanyo SAP-KRV94EHDX service manual Special Remarks

Page 76

Special Remarks

‘‘DRY’’ ( ) Operation

How it works? • Once the room temperature reaches the level that was set, the unit’s operation frequency is changed automatically.

•During DRY operation, the fan speed is automatically set to Low speed for providing a comfortable breeze.

•‘‘DRY’’ operation is not possible if the indoor temperature is 15 °C or less.

Heating (

) Operation

 

 

 

 

 

 

Heating performance

• Because this air conditioner heats a room by drawing in the heat of the

 

 

 

outside air (heat pump system), the heating efficiency will fall off when the

 

 

 

outdoor temperature is very low. If sufficient heat cannot be obtained with

 

 

 

this air conditioner, use another heating appliance together with it.

 

Defrosting

• When the outdoor temperature is low, frost or ice may form on the heat

 

 

 

exchanger coil, reducing heating performance. When this happens, a

 

 

 

microcomputer defrosting system operates. At the same time, the fan on

 

 

 

the indoor unit stops and the OPERATION lamp lights red and orange

(FILTER)

alternately until defrosting is completed. Heating operation restarts after

LED CLEAN ION

TIMER OPR.

several minutes. (This interval will vary slightly depending upon the

outdoor temperature and the way in which frost forms.)

 

 

 

OPERATION lamp

 

Cold draft prevention

• For several minutes after the start of heating operation, the indoor fan runs

 

 

 

at a lower speed until the indoor heat exchanger coil has warmed up

 

 

 

sufficiently. However, the fan may remain stopped when the room

 

 

 

temperature is low. This is because the COLD DRAFT PREVENTION

 

 

 

SYSTEM is in operation.

Cooling ( ) Operation

Power failure during operation

Clicking Sound

•Sometimes the indoor unit may not get to the set fan speed such as LOW and QUIET under cool operation at very low outdoor temperatures due to the indoor unit being protected from ice or frost.

•In the event of power failure, the unit will stop. When the power is resumed, the unit will restart automatically within five minutes by the remote control unit.

Clicking sound is heard from

•

In heating or cooling operation, any plastic parts may expand or shrink due

 

the air conditioner

 

to a sudden temperature change. In this event, a clicking sound may occur.

 

 

 

 

This is normal, and the sound will soon disappear.

 

 

 

 

 

 

Remote Control Unit

 

•

The remote control unit sends the setting condition signals to the air

 

 

 

 

conditioner regularly at five minute intervals.

 

 

 

 

OI-791-17-EG

17

 

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Contents DC Inverter Split System AIR Conditioner Table of Contents Checking Electrical Components For safe installation and trouble-free operation, you Must Please Read Before StartingOperating Range Unit Specifications Indoor Unit SAP-KRV94EHDXSAP-KRV124EHDX Outdoor Unit SAP-CRV124EHDXMajor Component Specifications SAP-KRV94EHDXCB-KRV124EHDX Outdoor Unit CB-CRV124EHDX Other Component Specifications Dimensional Data Dia .35 1/4 Refrigerant Flow Diagram Refrigerant Flow DiagramInsulation of Refrigerant Tubing Indoor Unit SAP-KRV94EHDX Outdoor Unit SAP-CRV94EHDXTemperature Charts Performance DataIndoor Unit SAP-KRV124EHDX Outdoor Unit SAP-CRV124EHDX Air Throw Distance Charts Indoor Unit SAP-KRV124EHDX Cooling Electrical CharacteristicsHeating Outdoor Unit Indoor Unit Electric Wiring DiagramsSAP-CRV94EHDX SAP-KRV94EHDX SAP-CRV124EHDX SAP-KRV124EHDX Installation Site Selection About Recommended Wire Length and Diameter Wiring System DiagramRemote Control Unit Installation Position Mounting on a WallHow to Test Run the Air Conditioner ON/OFFHow to remove the grille Remove the Grille to Install the Indoor UnitHow to replace the grille Address Setting of the Remote Control Unit MaintenanceSwitching the remote controller address Removing and Mounting the Drain Hose Removing the Electrical Component Box Page Removing the Panel Motor Removing and Mounting the Drain Pan Air Outlet Assy Removing the Drain Pan Air Outlet AssyMounting the Drain Pan Air Outlet Assy Water in the drain panRemoving the Negative Ion Generator Removing the Fan Motor Removing and Mounting the Fan MotorMounting the Fan Motor Removing the Fan 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 preventionMode Heating Mode CoolingNon-Stop Defrosting Precautions before Performing Inspection or Repair TroubleshootingMethod of Self-Diagnostics Self-diagnostics Lamps ION Timer OperationChecking the Indoor and Outdoor Units Diagnostic procedure Diagnostic resultsRemedy for symptom 3 to Trouble Diagnosis of Indoor and Outdoor Fan MotorOutdoor Fan Motor Noise malfunction Noise Malfunction and Electromagnetic InterferenceElectromagnetic interference Upper right screw Grille Screw Flap Screw cover Making a Diagnosis of the Panel Motor Checking Electrical Components Measurement of Insulation ResistanceChecking Continuity of Fuse on PCB Assy Refrigerant R410A Special Precautions When Servicing Unit Characteristics of New Refrigerant R410AChecklist before Servicing Size of flareTubing precautions No addition of compressor oil for R410ANo use of refrigerant other than R410A If refrigerant R410A is exposed to fireTubing Installation Procedures Tools Specifically for R410AFor servicing, use the following tools for R410A Tool Distinction Tool NameProcedure for Replacing Compressor Case of Compressor MalfunctionConfiguration and characteristics of cylinders RechargingNever charge a large amount Unit. This may causeCase Refrigerant is Leaking Welding leaking pointsWhen Tubes are Extended Charging Additional RefrigerantRetro-Fitting Existing Systems Use of Existing UnitsOI-852-6-4180-791-00-0 Features Child LockAlert Symbols ContentsProduct Information Safety Instructions Installation LocationElectrical Requirements Names of Parts Unit Display and Operation Button Remote Control Unit Display Remote Control Unit Auto HeatDRY CoolUsing the Remote Control Unit ONE TIME/EVERYDAYRemote control unit mount Mounting screws 4 x 16 included Using the Remote Control UnitControl Unit Operation with the Remote Control Unit StepStep Press the ON/OFF operation buttonOperation with the Remote Control Unit Cover closed Cover opened StepAdjusting the Fan Speed Cooling and DRY Mode Night Setback Mode is used for saving energySetting Setting TemperatureQuiet Mode Special Remarks Example To set to Setting the TimerOperation Indication Setting the Timer To cancel a timer program Press the Cancel button2230 610 2000 Present time OFFUsing the 1.2.3.5-Hour OFF Timer Setting procedureCancellation procedure Operation together with the Daily ON/OFF Repeat TimerSweep Adjusting the Airflow DirectionFAN Heat Care and Cleaning Indoor UnitCare and Cleaning How to replace the anti-moldRemounting the front panel FilterHow to clean the air clean filter Negative ion generator metal electrodes inside plastic caseOperating Range TroubleshootingTrouble Possible Cause Remedy Osaka, Japan Sept

SAP-KRV94EHDX specifications

The Sanyo SAP-KRV94EHDX is a cutting-edge split-type air conditioning unit that exemplifies advanced technology and efficiency. Designed for both residential and commercial spaces, this model is equipped with features that cater to various cooling and heating needs.

One of the main highlights of the Sanyo SAP-KRV94EHDX is its energy efficiency. With a high Energy Efficiency Ratio (EER), this unit minimizes energy consumption while maximizing cooling performance. This not only results in lower electricity bills but also contributes to a reduced carbon footprint, making it an environmentally friendly choice for users.

The SAP-KRV94EHDX employs inverter technology, which allows the compressor to adjust its speed dynamically based on the temperature requirements of the environment. This means that the unit operates more quietly and uses less energy when maintaining a consistent temperature. The inverter system ensures that the air conditioner can quickly reach the desired cooling or heating temperature and maintain it without the frequent on-off cycles typical of traditional units.

Additionally, the air conditioning unit comes with a powerful cooling capacity, effectively managing larger spaces. It can easily handle varying ambient conditions while providing rapid cooling in extremely warm weather, making it perfect for areas with hot climates.

Other notable features include a user-friendly remote control, allowing users to adjust settings from a distance effortlessly. The unit also incorporates a multi-stage air filtration system designed to remove dust, allergens, and other airborne particles, contributing to better indoor air quality.

The Sanyo SAP-KRV94EHDX is not just about functionality; it also boasts a sleek and modern design that blends seamlessly with various interior aesthetics. Its quiet operation ensures that it does not disturb daily activities, making it suitable for bedrooms, offices, and living spaces.

Moreover, the unit comes with various operational modes, including cooling, dehumidification, and a heating function. This versatility makes the SAP-KRV94EHDX an all-season solution for climate control.

In summary, the Sanyo SAP-KRV94EHDX is a top-tier air conditioning unit that combines efficiency, advanced technology, and user convenience. Its inverter technology, multi-stage air filtration, and modern design make it a reliable choice for anyone seeking comfort throughout the year.
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