Panasonic CS-KE18NB4UW, CU-KE12NK1 Operation Functions, Emergency operation, PAM- control

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8. FUNCTIONS

8-1. Operation Functions

Emergency operation

Emergency operation is available when the remote controller malfunctions, has been lost, or otherwise cannot be used.

To operate the system, press the OPERATION button, which is also used as the receiver, below the unit display. Each time this button is pressed, the OPERATION lamp changes color to indicate the type of operation. Select the desired type of operation.

COOLHEATSTOP

(GREEN)

(RED)

(Lamp Off)

The set temperature is 4°F(2°C) below the detected room temperature in the case of cooling operation, and 4°F(2°C) above the room temperature in the case of heating operation. The flap and fan speed settings are AUTO.

AUTO cooling/heating operation

Selecting the operation mode

When AUTO mode is selected, the microprocessor calculates the difference between the set temperature and the room temperature, and automatically switches to Cooling or Heating mode.

Room temp. Set temp. COOL Room temp. Set temp. HEAT

As shown by the example in the figure below, with AUTO cooling/heating operation, the mode changes between Heating and Cooling mode according to changes in the relationship between the current room temperature and the set temperature.

Example

Example of operation in AUTO mode with the set room temperature

at 74°F(23°C).

 

 

 

 

 

Room temp.

 

 

 

 

 

 

Zone A

 

 

 

 

 

 

Zone B

 

 

 

 

 

Set temp.

Zone C

 

 

 

 

 

74

 

 

 

 

 

 

Zone C

 

 

 

 

 

 

Zone B

 

More than

 

Within

 

 

 

 

 

 

 

Zone A

 

1 hour

 

1 hour

 

 

 

 

 

 

 

 

Compressor

ON

OFF

ON

OFF

ON

 

Operation mode

 

Cooling

 

Heating

Cooling

SENSOR DRY

During DRY operation, the system adjusts the room temperature and fan speed according to the conditions in the room, in order to maintain a comfortable room environment.

SENSOR DRY operation

DRY operation is as shown in the figure below.

Load

COOL zone

Azone B zone

Conditions are monitored at all times when the room temperature is below 59°F(15°C).

DRY A

The compressor operation frequency varies.

The indoor fan operates with 1/f fluctuation.

DRY B

The compressor operates at a low operating frequency. The indoor fan operates with 1/f fluctuation.

Monitor

Monitoring operation takes place when the room temperature is below 59°F(15°C), or more than 5°F(3°C) below the set temperature.

When the monitoring range is entered, the compressor stops, and the indoor fan operates with 1/f fluctuation.

PAM- control

In order to further improve inverter performance, control is switched between PWM control at low operation speeds, and PAM control at high operation speeds, making the most effective use of power.

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Contents 852 361 Outdoor Model No. Product Code NoSafety Precautions Prohibit Table of Contents CZ-RD515U CS-KE12NB41 & CZ-18BT1U + CU-KE12NK1Operating Range Temperature Indoor Air Intake Temp Outdoor Air Intake TempCS-KE12NB41 & CZ-18BT1U SpecificationsUnit Specifications Indoor UnitDimensions & Weight Outdoor Unit Dimensions & Weight Indoor Unit230V CU-KE18NKUCU-KE18NKU 208V CZ-KE18NB4UW & CZ-18BT1U Indoor Unit Panel CZ-18BT1U Major Component SpecificationsIndoor Unit Indoor Unit Body CS-KE12NB41CB-CS-KE18NB4U Indoor Unit Body CS-KE18NB4UWExternal Finish Outdoor UnitOutdoor Unit CU-KE12NK1 CompressorOutdoor Unit CU-KE18NKU Outdoor air temp sensor Other Component SpecificationsIndoor Unit CS-KE12NB41 & CZ-18BT1U Indoor air temp sensor ModelKTEC-35-S98Unit inch mm Dimensional DataUnit inch mm 852-0-0010-12700-0 Unit inch mm 852-0-0010-13200-0 Outdoor unit Refrigerant Flow DiagramRefrigerant Flow Diagram Outdoor unit Indoor Unit CS-KE12NB41 & CZ-18BT1U Outdoor Unit CU-KE12NK1 Temperature ChartsPerformance Data High pressure performance chart Indoor Unit CS-KE18NB4UW & CZ-18BT1U Outdoor Unit CU-KE18NKU At wide Pressure CU-KE12NK1 Power Supply 115V Single Phase 60Hz Cooling CapacityCooling Capacity CS-KE18NB4UW & CZ-18BT1U Power Supply 230V Single Phase 60Hz Cooling CapacityCooling Capacity Low Ambient 740 11,860 800 24.4 TH Total Heating Capacity BTU/h Power Supply 115V Single Phase 60Hz Heating CapacityHeating Capacity Power Supply 230V Single Phase 60Hz Heating Capacity Heating Electrical CharacteristicsElectrical Data CoolingVoltage208V Cooling Voltage230V Cooling8FA2-5250-46900-2 CS-KE12NB4118BT1U Outdoor Unit CU-KE12NK1 8FA2-5251-12200-2 Controller Address Setting of the Remote Controller MaintenanceHow to Connect How to DisconnectRemove the air intake grill Disassembly ProcedureDisconnect the connectors in the control box Remove the ceiling panel Remove the power box and control box Remove the indoor air temperature sensorScrew Ground cable CN07 CN03 CN09 CN06 Remove the main body lower section Remove the heat exchanger sensor Remove the drain pump and float switchRemove the heat exchanger Remove the turbo fan and fan motorAuto cooling/heating operation FunctionsOperation Functions Emergency operationLamp colors Timer backupFreeze 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 Indoor Unit Self-diagnostics LampsReplace the circuit board or the fuse Using the TEST/T-RUN terminalsChecking the Indoor and Outdoor Units Replace the controllerCondition E01 Serial Communication Error Identification ProcedureOff Blinking Illuminated Before the OperationFrom the previous page a Condition E12 Indoor Fan Motor Trouble Diagnosis of Fan MotorOutdoor Fan Motor Locations 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 Systems
Related manuals
Manual 114 pages 38.6 Kb Manual 132 pages 33 Kb

CZ-18BT1U, CS-KE12NB41, CS-KE18NB4UW, CU-KE18NKU, CU-KE12NK1 specifications

The Panasonic CS-KE18NB4UW and CU-KE12NK1, along with the CS-KE12NB41, CZ-18BT1U, and CU-KE18NKU, represent a suite of advanced air conditioning solutions built with cutting-edge technologies designed to provide optimal comfort, energy efficiency, and air quality in various settings.

One of the standout features of this lineup is the inverter technology. Inverter air conditioners adjust the compressor speed to maintain the desired temperature efficiently. This leads to significant energy savings compared to traditional air conditioners, which tend to frequently cycle on and off, consuming more power. By continuously regulating the temperature, the Panasonic units not only save electricity but also prolong the lifespan of the compressor.

Another noteworthy characteristic is the nanoe™ technology integrated into some of these models. Nanoe™ technology uses hydroxyl radicals to purify the air, minimizing harmful bacteria and allergens. This makes the Panasonic units particularly suitable for users with allergies or respiratory issues, providing a cleaner and healthier indoor environment.

In terms of design, these models are sleek and compact, allowing them to fit seamlessly into any room decor, whether in a home, office, or commercial space. The quiet operation is another advantage, making them ideal for bedrooms and study areas where minimal noise is essential.

Furthermore, the CS-KE18NB4UW and CU-KE12NK1 offer a range of powerful cooling and heating capacities, making them versatile solutions for various climate conditions. The cold climate performance ensures consistent heating in colder regions, while the robust cooling capabilities make them perfect for hot summer months.

The user-friendly features include a smart remote control system, allowing users to adjust settings with ease from a distance. Some models are equipped with Wi-Fi capability, enabling integration with smart home systems for enhanced control and programmability.

In conclusion, the Panasonic CS-KE18NB4UW, CU-KE12NK1, CS-KE12NB41, CZ-18BT1U, and CU-KE18NKU air conditioning units exemplify innovation and efficiency. With their inverter technology, air purification features, compact designs, and smart functionalities, they stand out as ideal choices for maintaining comfortable and healthy indoor environments throughout the year.