Panasonic CS-KE30NKU, CU-KE36NKU Charging Additional Refrigerant, Retro-Fitting Existing Systems

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10-7. Charging Additional Refrigerant

10-7-1. When Tubes are Extended

Observe the proper amount of refrigerant as stated in this service manual or the installation manual that came

with the indoor unit. Charge additional refrigerant in liquid state only.

CAUTION

Never charge additional refrigerant if refrigerant is leaking from the unit. Follow instructions given in "10-6. In Case Refrigerant is Leaking" and completely carry out repairs. Only then should you recharge the refrigerant.

10-8. Retro-Fitting Existing Systems

10-8-1. Use of Existing Units

Never use new refrigerant R410A for existing units which use R22. This will cause the air conditioner to

operate improperly and may result in a hazardous condition.

10-8-2. Use of Existing Tubing

If replacing an older unit that used refrigerant R22 with a R410A unit, do not use its existing tubing. Instead, completely new tubing must be used.

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Contents 852 360 CS-KE30NKU + CU-KE30NKU CS-KE36NKU + CU-KE36NKUIndoor Model No Product Code No Outdoor Model No Product Code NoSafety Precautions Prohibit Table of Contents Checking Electrical Components Operating Range Temperature Indoor Air Intake Temp Outdoor Air Intake TempOutdoor Unit SpecificationsUnit Specifications Indoor Unit208V CS-KE36NKU 21.9 19.9 Indoor Unit CS-KE30NKU Major Component SpecificationsIndoor Unit CB-CS-KE36NKU Indoor Unit CS-KE36NKUCompressor Outdoor UnitOutdoor Unit CU-KE30NKU BoardOutdoor Unit CU-KE36NKU Other Component Specifications Dimensional Data Inchmm 194-00-1 Unit Indoor unit Outdoor unit Refrigerant Flow DiagramRefrigerant Flow Diagram Indoor Unit CS-KE30NKU Outdoor Unit CU-KE30NKUPerformance Data Temperature ChartsHigh pressure performance chart Indoor Unit CS-KE36NKU Outdoor Unit CU-KE36NKU Discharge 9535 8630 Indoor CU-KE30NKU Power Supply 230V Single Phase 60Hz Cooling CapacityCooling Capacity CS-KE30NKU34,000 BTU/h Outdoor Cooling Capacity Low Ambient30,900 30,870 30,800 30,710 30,590 30,400 30,210 TH Total Heating Capacity BTU/h Power Supply 230V Single Phase 60Hz Heating CapacityHeating Capacity 36,000 BTU/h Air Throw Distance Charts Cooling Heating Electrical CharacteristicsElectrical Data Voltage230V Cooling650 8FA2-5251-12400-1 Electric Wiring DiagramsController 8FA2-5251-15200-0Auto cooling/heating operation FunctionsOperation Functions Emergency operationLamp colors Timer backupOperation Sound Switching Procedure to Noise Reducing ControlNoise Reducing Control Outdoor Unit CU-KE36NKU Maximum Current Value Change ProcedureMaximum Current Value Change Function Description of functionFreeze prevention Compressor discharge temperature controlProtective Functions Overload prevention during heatingReverse-Cycle Defrosting Defrost detection and releaseCT Peak current cut-off control Method of Self-Diagnostics Troubleshooting Before Calling for ServicePrecautions before Performing Inspection or Repair Diagnosis Contents Self-diagnostics LampsReplace 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 Before the Operation Serial Communication Error Identification ProcedureAlarm Code E05 Off Blinking IlluminatedFrom the previous page a Alarm Code E07/P04/P05/P20/P27 Indoor Fan Motor Trouble Diagnosis of Fan MotorPin 2 PG white Outdoor Fan MotorPin 3 Gnd blue Pin 1 Vcc brownLocations most susceptible to noise Trouble Correction Noise Malfunction and Electromagnetic InterferenceNoise malfunction Electromagnetic interferenceMeasurement of Insulation Resistance for Electrical Parts Power Supply CordChecking Electrical Components Measurement of Insulation ResistanceChecking Continuity of Fuse on PCB Assy Characteristics Refrigerant R410A Special Precautions When Servicing UnitCharacteristics of New Refrigerant R410A What is New Refrigerant R410A?Checklist before Servicing Tools Specifically for R410A Tubing Installation ProceduresCase of Compressor Malfunction Procedure for Replacing CompressorTo prevent the composition Configuration and characteristics of cylindersAmount in the charging cylinder is less than 20% ExampleRecharging Case Refrigerant is LeakingWelding leaking points Use of Existing Units When Tubes are ExtendedCharging Additional Refrigerant Retro-Fitting Existing SystemsAppendix a Operating Instructions CS-KE36NKU CS-KE30NKUProduct Information FeaturesContents Safety PrecautionsAvoid Installation LocationSafety Instructions Electrical RequirementsUnit Display and Operation Button Names of PartsSymbols Remote Controller DisplayRemote Controller High Power button HR. Timer button 1-HOUR OFF TimerTemperature setting buttons Temp Mode selector button20 mm Using the Remote ControllerACL button 32 x 13/16Automatic Operation Operation with the Remote ControllerManual fan speed Cooling and DRY ModeHeating Mode Automatic fan speedUnoccupied Indication Status High Power ModeSpecial Remarks Operation Indication Setting the Timer1030 pm 710 am 1100 am Present time Using the 1-HOUR OFF TimerTips for Energy Saving When the air conditioner is not running Adjusting the Airflow DirectionWashing the front panel with water How to replace the filterCleaning the main unit and Remote Controller Removing and remounting the front panelTrouble Possible Cause Remedy Wired Remote ControllerOperating Range Model No Outdoor Unit Indoor Unit SpecificationsPage 852-6-4190-587-00-0 Contents Installation Instructions Split System Air ConditionerPlease Read Before Starting Accidentally Fins of the outdoor unit. You may get injuredOptional Copper Tubing Kit Tools Required for Installation not suppliedAccessories Supplied with Unit Table GeneralAdditional Materials Required for Installation Installation Site SelectionSolid base must not cover the hole of the bottom plate $/,8,3?,4508-25= $/,04.3?-8,,D,4+89 Precautions for Installation in a Snowy Area Countermeasures against snow and wind Unit inch $/,-8544+5/90+,9398,30456,4 Required space around the outdoor unit4922054=0/041,9-*04.52,9 27-5/8 11-5/8 Air Intake 25/32 13/32 13-3/8 14-31/32 #04.2,4004922054 9*2,9545/90+,9 4522,8/4/,/,0./5-/,5+558409*2,9545/90+,9 Installation in front-rear rowsObstacles to the front and rear of unit #04.2,4004922054Make a Hole How to Install the Indoor UnitTrical wiring or conduits are Remove the Rear Panel from the UnitHole Dia Install the Rear Panel on the WallIf Wooden Wall If Block, Brick, Concrete or Similar Type WallHow to replace the grille Removing and Installing the GrilleHow to remove the grille Shape the Indoor Side Tubing Wiring Instructions General precautions on wiringWire 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 Right-side tubing MountingDrain cap Switching drain hose and drain cap Left-side tubing Frame Fastening Method Do not supply power toTubing and wiring to the out To unmount indoor unitCover B How to Install the Outdoor UnitWiring Instructions for the Outdoor Unit Routing the Tubing and WiringUse of the Flaring Method Flaring Procedure with a Flare ToolTo 0.5 mm Adjust so that the amount of tube Refrigerant TubingTaping the Tubes Connecting Tubing between Indoor and Outdoor UnitsFinishing the Installation Insulation of Refrigerant TubingAir Purging Attempting to turn the valve Be sure to completely insertHex wrench before How to Test Run the Air Conditioner Pump Down Basic Functions of the Service ValvesRemote Controller Installation Position Service Valve ConnectionsAddress Setting of the Remote Controller Address SwitchDC1111-0

CS-KE30NKU, CS-KE36NKU, CU-KE30NKU, CU-KE36NKU specifications

The Panasonic CU-KE36NKU, CS-KE36NKU, CU-KE30NKU, and CS-KE30NKU air conditioning units represent the brand's commitment to delivering high-performance cooling solutions backed by innovative technologies. These units cater to both residential and commercial applications, ensuring users experience maximum comfort throughout the year.

One of the standout features of these models is their energy efficiency. Both units are equipped with advanced inverter technology, which allows for variable speed operation. This means they can adjust their power output according to the room's cooling needs, reducing energy consumption and minimizing electric bills while maintaining a consistent temperature. The models boast impressive SEER (Seasonal Energy Efficiency Ratio) ratings, making them environmentally friendly options.

Panasonic's nanoe-G technology is another remarkable feature incorporated into these models. This technology helps to purify the air by generating hydroxyl radicals, which eliminate airborne particles, odors, and harmful bacteria. This results in a healthier indoor environment, conducive to both comfort and well-being. The air purification aspect not only enhances the air quality but also extends the lifespan of the HVAC system by reducing the buildup of dust and contaminants.

In terms of user convenience, both the CU-KE and CS-KE series are equipped with programmable timers, allowing users to set their desired operation schedules. They also come with a remote control for ease of use, enabling adjustments from a distance. The installation process is straightforward, and the sleek design blends seamlessly with various interior aesthetics, making them a suitable choice for any room.

Durability is a key characteristic of Panasonic air conditioning units, and the CU-KE36NKU, CS-KE36NKU, CU-KE30NKU, and CS-KE30NKU are designed to withstand varying environmental conditions. Their robust construction ensures reliability and performance over the years. Additionally, both models come with a quiet operation feature that minimizes noise levels, allowing for comfortable use without disturbing daily activities.

In summary, the Panasonic CU-KE36NKU, CS-KE36NKU, CU-KE30NKU, and CS-KE30NKU are exceptional air conditioning units that combine energy efficiency, innovative purification technology, user-friendly features, and robust durability. These models are an ideal investment for anyone seeking a reliable and high-performance cooling solution.