Panasonic CS-S18NKU-1 Indoor Fan Motor Operation, Outdoor Fan Motor Operation For S9NK and S12NK

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11.2 Indoor Fan Motor Operation

11.2.1Basic Rotation Speed

Manual Fan Speed

 

 

 

 

 

 

 

 

o Fan motor’s number of rotation is determined according to remote control setting.

 

 

 

 

 

 

 

 

 

 

 

 

Remote control

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Tab

Hi

Me+

 

Me

Me-

Lo

 

Auto Fan Speed

 

 

 

 

 

 

 

 

o According to room temperature and setting temperature, indoor fan speed is determined automatically.

 

o The indoor fan will operate according to pattern below.

 

 

 

 

Fan Speed

Higher

Medium

Lower

a

b

c

d

e

f

g

h

a

b

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

[1 pattern : 10s]

Feedback control

o Immediately after the fan motor is started, feedback control is performed once every second.

o During fan motor on, if fan motor feedback ≥ 2550 rpm or <50 rpm continuously for 10 seconds, the fan motor error counter increased; fan motor is then stopped and restarted. If the fan motor error counter increased to 7, then H19 – fan motor error is detected. Operation stopped and could not be restarted.

11.3 Outdoor Fan Motor Operation (For S9NK and S12NK)

Outdoor fan motor is operated with one fan speed only. Outdoor fan turns on when compressor starts to operate. But outdoor fan will turns off 30 seconds after compressor stops to operate.

ON

Compressor

ON

Outdoor Fan

 

 

ON

 

OFF

 

Fan Speed

 

ON

ƒ30 sec„

OFF

 

11.4 Outdoor Fan Motor Operation (For S18NK and S22NK)

There is 2 speeds for outdoor fan motor. Outdoor fan speed can be changed to Hi or Shi according to outdoor temperature. By default, the outdoor fan speed is set to Hi. For Cooling or Soft Dry operation, when outdoor temperature reaches 100.4°F the outdoor fan speed is set to Shi, when outdoor temperature reduced to 98.6°F the fan speed will set to Hi again. Outdoor fan will turns off 30 seconds after compressor stops to operate.

ON

Compressor

ON

Outdoor Fan

 

 

ON

 

OFF

 

Fan Speed

 

ON

ƒ30 sec„

OFF

 

 

 

 

(For S18NK and S22NK)

11.5 Airflow Direction

There are two types of airflow, vertical airflow (directed by horizontal vane) and horizontal airflow (directed by vertical vanes).

Control of airflow direction can be automatic (angles of direction is determined by operation mode, heat exchanger temperature and intake air temperature) and manual (angles of direction can be adjusted using remote control).

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Contents Indoor Unit Outdoor Unit CU-S12NKU-1CS-S18NKU-1 CU-S18NKU-1 CS-S22NKU-1 CU-S22NKU-1 Table of Contents Safety Precautions Items to be followed are classified by the symbolsPage Specification CU-S9NKU-1 CU-S12NKU-1 ARIDRY Bulb WET Bulb CS-S18NKU-1 CS-S22NKU-1 Piping Indoor Unit Outdoor Unit Remote Control Location of Controls and ComponentsDimensions Indoor UnitCS-S9NKUW-1 CS-S12NKUW-1 CS-S18NKU-1 CS-S22NKU-1 CU-S9NKU-1 CU-S12NKU-1 CU-S18NKU-1 CU-S22NKU-1 Refrigeration Cycle Diagram CS-S18NKU-1 CU-S18NKU-1 CS-S22NKU-1 CU-S22NKU-1 Block Diagram CS-S18NKU-1 CU-S18NKU-1 CS-S22NKU-1 CU-S22NKU-1 Wiring Connection Diagram CS-S18NKU-1 CS-S22NKU-1 CU-S9NKU-1 CU-S12NKU-1 CU-S18NKU-1 CU-S22NKU-1 Electronic Circuit Diagram CS-S18NKU-1 CS-S22NKU-1 Outdoor Unit CU-S18NKU-1 CU-S22NKU-1 Printed Circuit Board Main Printed Circuit BoardPower Printed Circuit Board Indicator Printed Circuit Board CU-S9NKU-1 CU-S12NKU-1 CU-S18NKU-1 CU-S22NKU-1 Installation Instruction Indoor/Outdoor Unit Installation Diagram10.1 S9NKUW-1 S12NKUW-1 Select the Best LocationHow to Fix Installation Plate Indoor UnitThis can be used for left rear piping and bottom piping also Connect the Cable to the Indoor Unit Page Install the Outdoor Unit Outdoor UnitGas leak checking Piping Insulation 10.2 S18NKU-1 S22NKU-1 How to Fix Installation Plate This can be used for left rear piping and bottom piping also Connect the Cable to the Indoor Unit Page Model S18NKU-1 Evacuation of the equipment Piping Insulation Internal Setting Temperature Operation ControlBasic Function Cooling OperationIndoor Fan Motor Operation Outdoor Fan Motor Operation For S9NK and S12NKOutdoor Fan Motor Operation For S18NK and S22NK Airflow DirectionQuiet Operation Cooling Mode/Cooling Area of Dry Mode 11.5.1 Vertical AirflowHorizontal Airflow Powerful Mode Operation Timer ControlOn Timer Control OFF Timer ControlLED Power Timer Quiet Powerful Indication PanelRestart Control Time Delay Safety Control IPM Power Transistor Prevention ControlProtection Control 12.2 30 Seconds Forced OperationLow Pressure Protection Control Gas Leakage Detection Low Frequency Protection Control12.4.2 S18NK, S22NK Outdoor Air Temperature Control Cooling Overload ControlFreeze Prevention Control Dew Prevention ControlServicing Mode Auto Off/On ButtonRemote Control Button Reset RCReset AC TimerTroubleshooting Guide Refrigeration Cycle SystemCondition Cooling Mode Air conditioner To Display Memorized Error Code Protective Operation Breakdown Self Diagnosis FunctionSelf Diagnosis Function Three Digits Alphanumeric Code To Make a DiagnosisError Code Table Abnormality / Protection controlTroubleshooting Flowchart 14.4.1 H11 Indoor/Outdoor Abnormal Communication14.4.2 H12 Indoor/Outdoor Capacity Rank Mismatched 14.4.3 H14 Indoor Intake Air Temperature Sensor Abnormality 14.4.4 H15 Compressor Temperature Sensor Abnormality 14.4.5 H16 Outdoor Current Transformer Open Circuit 14.4.6 H19 Indoor Fan Motor DC Motor Mechanism Locked 14.4.7 H23 Indoor Pipe Temperature Sensor Abnormality 14.4.8 H27 Outdoor Air Temperature Sensor Abnormality 14.4.9 H28 Outdoor Pipe Temperature Sensor Abnormality Malfunction Decision Conditions 14.4.11 H33 Unspecified Voltage between Indoor and Outdoor 14.4.12 H97 Outdoor Fan Motor DC Motor Mechanism Locked 14.4.13 H98 Indoor High Pressure Protection Malfunction Decision Conditions 14.4.15 F11 Indoor Pipe Temperature Sensor Abnormality 14.4.16 F90 Power Factor Correction Protection 14.4.17 F91 Refrigeration Cycle Abnormality 14.4.18 F93 Compressor Rotation Failure 14.4.19 F95 Cooling High Pressure Abnormality 14.4.20 F96 IPM Overheating 14.4.21 F97 Compressor Overheating 14.4.22 F98 Input Over Current Detection 14.4.23 F99 Output Over Current Detection Disassembly and Assembly Instructions To remove front grilleTo remove discharge grille Page Page Technical Data Operation CharacteristicsCS-S9NKUW-1 CU-S9NKU-1 Page CS-S12NKUW-1 CU-S12NKU-1 Page CS-S18NKU-1 CU-S18NKU-1 Page CS-S22NKU-1 CU-S22NKU-1 Page Exploded View and Replacement Parts List CS-S12NKUW-1 Remark CS-S18NKU-1 CS-S22NKU-1 CS-S22NKU-1 Remark Outdoor Unit CU-S12NKU-1 Remark CU-S18NKU-1 CU-S22NKU-1 CU-S22NKU-1 Remark
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CS-S9NKUW-1, CS-S22NKU-1, CU-S18NKU-1, CS-S18NKU-1, CS-S12NKUW-1 specifications

Panasonic has long been a leader in the HVAC industry, and its latest range of air conditioning units—including the CU-S9NKU-1, CU-S12NKU-1, CU-S22NKU-1, CS-S12NKUW-1, and CS-S18NKU-1—showcases innovative features and robust technologies designed to enhance home comfort while reducing energy consumption.

The CU-S9NKU-1 model is notable for its compact design, making it ideal for smaller spaces without sacrificing performance. It boasts advanced inverter technology, enabling precise temperature control and energy efficiency. The built-in air purification system ensures that indoor air quality remains high, filtering out allergens and pollutants.

Similarly, the CU-S12NKU-1 variant provides a balance of power and efficiency for medium-sized rooms. This model incorporates a quiet operation feature, making it a perfect choice for bedrooms and living areas where noise levels need to be minimized. The adjustable airflow louvers ensure that air is distributed evenly throughout the space.

For larger spaces, the CU-S22NKU-1 stands out with its high cooling and heating capacity. This model is equipped with a dual inverter compressor that enhances both efficiency and performance, providing rapid cooling or heating when needed. The user-friendly remote control and smart connectivity options allow homeowners to adjust settings conveniently, even when they’re away from home.

The CS-S12NKUW-1 model features a sleek design and additional functionalities like the Eco Mode and Sleep Mode. Eco Mode adjusts the power consumption based on the user’s preferences, while Sleep Mode operates at low noise levels, promoting a restful environment during nighttime hours.

Lastly, the CS-S18NKU-1 combines innovative technology with aesthetic appeal. Its modern design is meant to complement contemporary interiors, and its high seasonal energy efficiency ratio (SEER) indicates strong performance in cooling seasons. Additionally, this model includes several energy-saving modes that adapt to changing thermal loads, ensuring that energy wastage is minimized.

Overall, Panasonic’s CU and CS series air conditioning units offer an impressive blend of technology and design, making them suitable for various needs and spaces while focusing on energy efficiency and user comfort. Whether for residential or light commercial use, these models provide reliable, effective solutions for climate control.