Panasonic CU-3KE19NBU, CU-4KE31NBU, CU-4KE24NBU service manual TH Total Heating Capacity BTU/h

Page 62

5-4. Heating Capacity

Outdoor Unit : CU-3KE19NBU

Indoor Unit : CS-MKE9NKU × 3

Power Supply : 230V Single Phase 60Hz

< Heating Capacity >

RATING CAPACITY:

24,800 BTU/h

 

AIR FLOW RATE:

 

847 CFM

OUTDOOR

 

 

 

INDOOR

 

 

 

ENT. TEMP. o F (o C)

 

 

AMBIENT TEMP. o F (o C)

 

 

 

 

WB

 

60

65

 

70

75

 

80

 

 

 

(15.6)

(18.3)

 

(21.1)

(23.9)

 

(26.7)

0

(-17.8)

TH

13,820

13,790

 

13,750

13,710

 

13,660

 

 

 

 

 

 

 

 

 

 

3

(-16.1)

TH

14,280

14,250

 

14,220

14,170

 

14,120

 

 

 

 

 

 

 

 

 

 

8

(-13.3)

TH

15,390

15,360

 

15,320

15,280

 

15,220

 

 

 

 

 

 

 

 

 

 

13

(-10.6)

TH

16,540

16,510

 

16,470

16,420

 

16,360

 

 

 

 

 

 

 

 

 

 

18

(-7.8)

TH

17,810

17,780

 

17,740

17,680

 

17,620

 

 

 

 

 

 

 

 

 

 

23

(-5.0)

TH

19,150

19,110

 

19,070

19,010

 

18,930

 

 

 

 

 

 

 

 

 

 

28

(-2.2)

TH

20,540

20,500

 

20,450

20,380

 

20,310

 

 

 

 

 

 

 

 

 

 

33

(0.6)

TH

21,980

21,940

 

21,880

21,810

 

21,730

 

 

 

 

 

 

 

 

 

 

38

(3.3)

TH

23,400

23,360

 

23,300

23,220

 

23,130

 

 

 

 

 

 

 

 

 

 

43

(6.1)

TH

24,920

24,870

 

#

24,800

24,720

 

24,620

 

 

 

 

 

 

 

 

 

 

48

(8.9)

TH

26,450

26,400

 

26,330

26,240

 

26,130

 

 

 

 

 

 

 

 

 

 

53

(11.7)

TH

28,000

27,940

 

27,870

27,770

 

27,660

 

 

 

 

 

 

 

 

 

 

58

(14.4)

TH

29,500

29,440

 

29,360

29,250

 

29,130

 

 

 

 

 

 

 

 

 

 

63

(17.2)

TH

31,050

30,980

 

30,890

30,780

 

30,660

 

 

 

 

 

 

 

 

 

 

65

(18.3)

TH

31,650

31,580

 

31,490

31,380

 

31,250

 

 

 

 

 

 

 

 

 

 

 

TH : Total Heating Capacity (BTU/h)

NOTE

1.Rating conditions (#) : Indoor Unit Entering Air Temp. 70 °F (21.1 °C) DB

:Outdoor Ambient Temp. 47 °F (8.3 °C) DB / 43 °F (6.1 °C) WB

2.Above data does not take Defrost Operation, Overload Prevention Protection, and/or Cold Air Prevention Protection during heating operation into account. For this reason, the value may vary from the actual heating characteristics.

3.Above data represents the value when the operation frequency of a compressor is fixed.

62

Image 62
Contents DC Inverter MULTI-SYSTEM AIR Conditioner Safety Precautions Prohibit Table of Contents Appendix a Wall Mounted Type Semi-Concealed TypeOperating Range Indoor Unit CS-MKE9NKU × Unit SpecificationsOutdoor Unit CU-3KE19NBU Duct Less Type Rated 230VOutdoor Unit Indoor Unit208V CU-4KE24NBU Running Amperes 10.1 Running Amperes 10.0 11.1 CU-4KE31NBU Running Amperes 12.3 10.3 Running Amperes 12.7 11.4 Major Component Specifications Outdoor UnitOutdoor Unit CU-4KE24NBU Outdoor Unit CU-4KE31NBU Other Component Specifications CU-3KE19NBU CU-4KE24NBU CU-4KE31NBUDimensional Data Unit inchmm 852-0-0010-20400-0 Unit inchmm 852-0-0010-20300-0 Indoor unit Outdoor unit Refrigerant Flow DiagramInsulation of Refrigerant Tubing Valve Narrow tube Curve because it can cause the tube to break or crack Indoor Unit CS-MKE7NKU × Temperature ChartsTemperature Charts CU-3KE19NBU F21 Heating Characteristics Outdoor Unit CU-3KE19NBU Indoor Unit CS-MKE12NKU ×Indoor Unit CS-MKE18NKU × Indoor Unit CS-MKE9NB4U × Outdoor Unit CU-3KE19NBU Indoor Unit CS-MKE12NB4U × Indoor Unit CS-KE12NB4UW × Temperature Charts CU-4KE24NBU 188 Lo fan Hi fan HH fan Outdoor Unit CU-4KE24NBU Indoor Unit CS-MKE12NKU × Indoor Unit CS-MKE18NKU × Indoor Unit CS-MKE24NKU × 23C 73F Current 21C Temp 70F 17C Air Indoor 63F Outdoor Unit CU-4KE24NBU Indoor Unit CS-MKE12NB4U × Indoor Unit CS-KE12NB4UW × Temperature Charts CU-4KE31NBU Wide 362 Pressure 290 High 218 Outdoor air temperature F C 73F 23C Temp Indoor 73F 23C Air Temp 86F 30C Temp Air Indoor 63F Wide 362 Current Cooling Capacity Indoor OutdoorPower Supply 230V Single Phase 60Hz Cooling Capacity CS-MKE12NB4U ×CS-MKE9NKU × CS-KE18NB4UW + CS-MKE12NB4U + CS-MKE12NB4U 30,600 BTU/h CS-MKE9NB4U × Cooling Capacity Low Ambient TC Total Cooling Capacity BTU/h ENT. TEMP. o F o C Ambient TEMP. o F o C 12.8 23,390 23,310 18,570 22,160 24,260 30,760 22,560 28,790 22,730 Heating Capacity TH Total Heating Capacity BTU/hPower Supply 230V Single Phase 60Hz Heating Capacity 29,200 BTU/h 28,400 BTU/h 32,000 BTU/h 000 CFM Electric Wiring Diagrams Outdoor Unit CU-3KE19NBU 8FA2-5251-11700-1Outdoor Unit CU-4KE24NBU 8FA2-5251-11500-1 Outdoor Unit CU-4KE31NBU 8FA2-5251-11300-1 Functions Explanation of FunctionsStop Cool Fluctuation fan Frequency controlFluctuation fan Low Ambient Cooling Operation Defrost Detection and Release Clean defrostProtective Functions Non-stop defrostingAutomatic frequency control Current ControlDescription of function Current controlLow Start Current Compressor Temperature ControlReset conditions Control at Heat Start-upTroubleshooting Before Calling for Service Precautions before Performing Inspection or RepairDisplay of the Error Monitor Lamps Trouble Diagnosis by Error Monitor LampsLocation of the Error Monitor Lamps Checking the outdoor unit Work procedure Check items unit operationChecking the Outdoor System Checking the defrost operationProblems of Each Part and Inspection Points Trouble Diagnosis of Each PartInspection Points for Each Part Electric expansion valve CU-3KE19NBU MV0 MV1 MV2 CU-4KE24NBU CU-4KE31NBURefrigerant gas pressure Branch tubing temperature sensorBreaker Remedy for symptom 3 to Diagnostic procedureDiagnostic results Trouble Diagnosis of Fan MotorCharacteristics Characteristics of New Refrigerant R410AWhat is New Refrigerant R410A? Components mixing proportionsChecklist before Servicing Tubing Installation Procedures Tools Specifically for R410AProcedure for Replacing Compressor Case of Compressor MalfunctionTo prevent the composition Amount in the charging cylinder is less than 20%Example R410A from changingRecharging Case Refrigerant is LeakingWelding leaking points Retro-Fitting Existing Systems When Tubes are ExtendedCharging Additional Refrigerant Use of Existing UnitsPage 852-6-4190-584-00-2 Contents For Outdoor UnitPlease Read Before Starting Fins of the outdoor unit. You may get injured ‡ 8VHWKHIODUHPHWKRGIRUFRQQHFWLQJWXELQJGeneral For wall-mounted units Installation Site SelectionIndoor Unit For ceiling-mounted cassette unitsH1, H2, H3, H4 Connecting indoor unit for CU-4KE24NBU Connecting Indoor UnitsConnecting indoor unit for CU-3KE19NBU 815.88mm Locally purchased Connecting indoor unit for CU-4KE31NBU CS-MKE24NKU Front Baffle Plate for the Outdoor UnitIt is recommended to use baffle plates BackAir Intake Baffle Air Discharge BafflePrecautions for installation CU-4KE24NBU Outer Dimensions of Outdoor UnitCU-3KE19NBU CU-4KE31NBUDiagram of Outdoor Unit Installation Never install only a single indoor unitUse of the Flaring Method Installation ProcessFlaring Procedure with a Flare Tool To 0.5 mm Adjust so that the amount of tube Tubing Connections For wall-mounted units Insulation of Refrigerant TubingTo prevent heat loss and wet floors due to dripping of con  For ceiling-mounted cassette units Air Purging with a Vacuum Pump for Test Run Finishing the InstallationAir Purging External diameter of service port R410A 5/16 Adapter manual, and use the adapter correctly Pump Down What is pump-down?Pump-down procedure If pump-down is not possibleRecommended Wire Length and Diameter Wiring InstructionsGeneral Precautions on Wiring Disconnect switch may be required by national or local codes  For stranded wiring How to connect wiring to the terminalFor Outdoor Unit  For solid core wiring or F-cable For Indoor UnitIndoor unit B Wiring Instructions for the Outdoor UnitIndoor unit D Indoor unit CPerforming a test run Checking tubing and wiringTest Run Connecting a Home Automation Device Installation Check SheetDC1111-0
Related manuals
Manual 114 pages 38.6 Kb Manual 56 pages 332 b

CU-3KE19NBU, CU-4KE24NBU, CU-4KE31NBU specifications

The Panasonic CU-4KE24NBU, CU-4KE31NBU, and CU-3KE19NBU are high-efficiency air conditioning units that represent Panasonic's commitment to innovative climate control solutions. These models integrate advanced technologies to deliver superior performance, energy savings, and user comfort, making them ideal for both residential and commercial applications.

The CU-4KE24NBU, a part of the ECOi series, is designed for medium-sized spaces. It boasts an impressive cooling capacity, ensuring optimal temperature regulation. Its inverter technology adjusts the compressor speed according to the needs of the environment, resulting in reduced energy consumption and consistent comfort levels. The unit operates quietly, making it suitable for bedrooms, offices, or other noise-sensitive environments. Additionally, it features a robust air filtration system that improves indoor air quality by removing dust and allergens.

The CU-4KE31NBU offers a slightly higher capacity, making it perfect for larger areas. Like its counterpart, it utilizes inverter technology, which not only enhances energy efficiency but also minimizes wear and tear on the components, leading to a longer lifespan. Its multi-split capability allows for the connection of multiple indoor units to a single outdoor unit, providing flexibility in installation. The CU-4KE31NBU also integrates smart technology that allows users to control the system remotely via smartphones, giving them greater convenience and control over their environment.

For applications requiring a more compact option, the CU-3KE19NBU is an excellent choice. This model balances size and power, offering a competitive cooling capacity that can easily service small to medium-sized rooms. The unit is designed for easy installation and maintenance, featuring a lightweight construction that simplifies handling by technicians. The efficient inverter technology ensures that users benefit from lower energy bills while maintaining a consistent indoor climate.

All three models are equipped with Panasonic’s advanced refrigerants, which contribute to their eco-friendly performance. These refrigerants help reduce greenhouse gas emissions while maintaining high efficiency. Moreover, the units come with built-in diagnostic capabilities, allowing for quick detection of any issues, thus ensuring that the systems operate at peak efficiency throughout their lifespan.

In summary, the Panasonic CU-4KE24NBU, CU-4KE31NBU, and CU-3KE19NBU are exemplary air conditioning solutions that combine cutting-edge technology with user-friendly features, ensuring that they meet the varying needs of today's consumers while promoting energy efficiency and sustainability.