Panasonic CU-4KS31NBU service manual 24,260 30,760

Page 60

Outdoor Unit

: CU-4KS31NBU

 

 

 

 

 

 

 

 

Indoor Unit

: CS-MKS9NKU × 4

 

 

 

 

 

 

Power Supply : 230V Single Phase 60Hz

 

 

 

 

 

 

 

< Cooling Capacity (Low Ambient) >

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RATING CAPACITY:

30,600 BTU/h

 

AIR FLOW RATE:

1,036 CFM

 

INDOOR

 

 

 

OUTDOOR

 

 

 

 

ENT. TEMP.oF (oC)

 

 

 

AMBIENT TEMP.oF (oC)

 

 

 

WB

DB

 

 

 

15

25

35

45

55

 

 

 

 

 

 

(-9.4)

(-3.9)

(1.7)

(7.2)

(12.8)

 

 

 

TC

 

 

30,870

30,760

30,800

31,010

30,890

 

 

72 (22.2)

SHC

 

 

24,260

30,760

24,260

24,260

24,260

 

59

76 (24.4)

SHC

 

 

27,890

30,760

27,890

27,890

27,890

 

(15.0)

80 (26.7)

SHC

 

 

30,870

30,760

30,800

31,010

30,890

 

 

84 (28.9)

SHC

 

 

30,870

30,760

30,800

31,010

30,890

 

 

88 (31.1)

SHC

 

 

30,870

30,760

30,800

31,010

30,890

 

 

 

TC

 

 

31,140

31,130

31,320

31,720

31,730

 

 

72 (22.2)

SHC

 

 

19,640

31,130

19,840

19,840

19,840

 

63

76 (24.4)

SHC

 

 

23,260

31,130

23,260

23,460

23,460

 

(17.2)

80 (26.7)

SHC

 

 

26,880

31,130

27,080

27,280

27,280

 

 

84 (28.9)

SHC

 

 

30,500

31,130

30,700

30,700

30,700

 

 

88 (31.1)

SHC

 

 

31,140

31,130

31,320

31,720

31,730

 

 

 

TC

 

 

31,150

31,270

31,660

32,300

32,450

 

 

72 (22.2)

SHC

 

 

15,010

31,270

15,210

15,410

15,610

 

67

76 (24.4)

SHC

 

 

18,630

31,270

18,830

19,030

19,030

 

(19.4)

80 (26.7)

SHC

 

 

22,250

31,270

22,450

22,860

22,860

 

 

84 (28.9)

SHC

 

 

25,870

31,270

26,080

26,280

26,480

 

 

88 (31.1)

SHC

 

 

29,490

31,270

29,700

29,900

29,900

 

 

 

TC

 

 

30,850

31,120

31,750

32,680

33,020

 

 

72 (22.2)

SHC

 

 

10,180

31,120

10,380

10,790

10,790

 

71

76 (24.4)

SHC

 

 

13,600

31,120

14,010

14,410

14,410

 

(21.7)

80 (26.7)

SHC

 

 

17,430

31,120

17,630

18,030

18,230

 

 

84 (28.9)

SHC

 

 

21,050

31,120

21,250

21,650

21,650

 

 

88 (31.1)

SHC

 

 

24,470

31,120

24,870

25,270

25,270

 

 

 

TC

 

 

30,230

30,670

31,570

32,820

33,340

 

75

76 (24.4)

SHC

 

 

8,980

30,670

9,380

9,780

9,980

 

(23.9)

80 (26.7)

SHC

 

 

12,600

30,670

13,200

13,600

13,600

 

 

84 (28.9)

SHC

 

 

16,220

30,670

16,620

17,020

17,220

 

 

88 (31.1)

SHC

 

 

19,840

30,670

20,240

20,640

20,840

 

 

 

TC : Total Cooling Capacity (BTU/h)

SHC : Sensible Heat Capacity (BTU/h)

NOTE

1.Above data does not take Freeze Prevention Protection during cooling operation into account. For this reason, the value may vary from the actual cooling characteristics.

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

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Image 60
Contents DC Inverter MULTI-SYSTEM AIR Conditioner Safety Precautions Prohibit Table of Contents Appendix a Wall Mounted Type Semi-Concealed TypeOperating Range Unit Specifications Outdoor Unit CU-3KS19NBUIndoor Unit CS-MKS9NKU × Duct Less Type RatedOutdoor Unit Indoor Unit208V CU-4KS24NBU BTU/h/W Compressor Locked Rotor Amperes 20,600 CU-4KS31NBU Indoor Unit CS-MKS9NKU 4units Outdoor Unit CU-4KS31NBU 1unit 24,200 Major Component Specifications Outdoor UnitOutdoor Unit CU-4KS24NBU Outdoor Unit CU-4KS31NBU Other Component Specifications CU-3KS19NBU CU-4KS24NBU CU-4KS31NBUDimensional Data Unit inchmm 852-0-0010-20500-0 Unit inchmm 852-0-0010-20600-0 Refrigerant Flow Diagram Insulation of Refrigerant TubingIndoor unit Outdoor unitIndoor unit Outdoor unit 1/4 Strainer Header Sub Main Compressor Accumulator Temperature Charts Temperature Charts CU-3KS19NBUOutdoor Unit CU-3KS19NBU Indoor Unit CS-MKS7NKU × Outdoor Unit CU-3KS19NBU Indoor Unit CS-MKS9NKU × Cooling Characteristics Outdoor Unit CU-3KS19NBU Indoor Unit CS-MKS12NKU ×Outdoor Unit CU-3KS19NBU Indoor Unit CS-MKS18NKU × Outdoor Unit CU-3KS19NBU Indoor Unit CS-MKS9NB4U × Outdoor Unit CU-3KS19NBU Indoor Unit CS-MKS12NB4U × Outdoor Unit CU-3KS19NBU Indoor Unit CS-KS18NB4UW × Temperature Charts CU-4KS24NBU Outdoor Unit CU-4KS24NBU Indoor Unit CS-MKS7NKU ×Outdoor Unit CU-4KS24NBU Indoor Unit CS-MKS9NKU × Outdoor Unit CU-4KS24NBU Indoor Unit CS-MKS12NKU × Outdoor Unit CU-4KS24NBU Indoor Unit CS-MKS18NKU × Outdoor Unit CU-4KS24NBU Indoor Unit CS-MKS24NKU × Outdoor Unit CU-4KS24NBU Indoor Unit CS-MKS9NB4U × Outdoor Unit CU-4KS24NBU Indoor Unit CS-MKS12NB4U × Outdoor Unit CU-4KS24NBU Indoor Unit CS-KS18NB4UW × Temperature Charts CU-4KS31NBU Outdoor Unit CU-4KS31NBU Indoor Unit CS-MKS9NKU × Outdoor Unit CU-4KS31NBU Indoor Unit CS-MKS12NKU × Outdoor Unit CU-4KS31NBU Indoor Unit CS-MKS18NKU × Outdoor Unit CU-4KS31NBU Indoor Unit CS-MKS24NKU × Outdoor Unit CU-4KS31NBU Indoor Unit CS-MKS9NB4U × Outdoor Unit CU-4KS31NBU Indoor Unit CS-MKS12NB4U × Outdoor Unit CU-4KS31NBU Indoor Unit CS-KS18NB4UW × Cooling Capacity Indoor OutdoorPower Supply 230V Single Phase 60Hz Cooling Capacity CS-MKS12NB4U ×CS-MKS9NKU × CS-KS18NB4UW + CS-MKS12NB4U + CS-MKS12NB4U 30,600 BTU/h CS-MKS9NB4U × Cooling Capacity Low Ambient 15,180 18,570 19,250 25,420 19,410 19,360 24,830 19,520 24,260 30,760 22,560 28,790 22,730 Electric Wiring Diagrams Outdoor Unit CU-3KS19NBU 8FA2-5251-11800-1Outdoor Unit CU-4KS24NBU 8FA2-5251-11600-1 Outdoor Unit CU-4KS31NBU 8FA2-5251-11400-1 Functions Explanation of FunctionsCool Fluctuation fan DRYLow Ambient Cooling Operation Protective Functions Current ControlDescription of function Automatic frequency controlCompressor Temperature Control Low Start CurrentCurrent control Troubleshooting Before Calling for Service Precautions before Performing Inspection or RepairTrouble Diagnosis by Error Monitor Lamps Location of the Error Monitor LampsDisplay of the Error Monitor Lamps Work procedure Check items unit operation Checking the Outdoor SystemChecking the outdoor unit Problems of Each Part and Inspection Points Trouble Diagnosis of Each PartInspection Points for Each Part Outdoor control circuit boardFuse CompressorElectric expansion valve CU-3KS19NBU MV0 MV1 MV2 CU-4KS24NBU MV3 CU-4KS31NBUBranch tubing temperature sensor BreakerRefrigerant gas pressure Diagnostic procedure Diagnostic resultsRemedy for symptom 3 to Trouble Diagnosis of Fan MotorCharacteristics of New Refrigerant R410A What is New Refrigerant R410A?Characteristics Components mixing proportionsChecklist before Servicing Tubing Installation Procedures Tools Specifically for R410AProcedure for Replacing Compressor Case of Compressor MalfunctionAmount in the charging cylinder is less than 20% ExampleTo prevent the composition R410A from changingCase Refrigerant is Leaking Welding leaking pointsRecharging When Tubes are Extended Charging Additional RefrigerantRetro-Fitting Existing Systems Use of Existing Units852-6-4190-581-00-1 Contents For Outdoor UnitPlease Read Before Starting Fins of the outdoor unit. You may get injured ‡ 8VHWKHIODUHPHWKRGIRUFRQQHFWLQJWXELQJGeneral Installation Site Selection For wall-mounted unitsFor ceiling-mounted cassette units H1, H2, H3, H4 Connecting Indoor Units Connecting indoor unit for CU-3KS19NBUConnecting indoor unit for CU-4KS24NBU 815.88mm Locally purchased Connecting indoor unit for CU-4KS31NBU CS-MKS24NKU Baffle Plate for the Outdoor Unit It is recommended to use baffle platesFront BackAir Intake Baffle Air Discharge BafflePrecautions for installation Outer Dimensions of Outdoor Unit CU-3KS19NBUCU-4KS24NBU CU-4KS31NBUDiagram of Outdoor Unit Installation Never install only a single indoor unitInstallation Process Flaring Procedure with a Flare ToolUse of the Flaring Method To 0.5 mm Adjust so that the amount of tube Tubing ConnectionsInsulation of Refrigerant Tubing To prevent heat loss and wet floors due to dripping of con For wall-mounted units  For ceiling-mounted cassette unitsFinishing the Installation Air Purging Air Purging with a Vacuum Pump for Test Run External diameter of service port R410A 5/16 Adapter manual, and use the adapter correctlyWhat is pump-down? Pump-down procedure Pump Down If pump-down is not possibleWiring Instructions General Precautions on WiringRecommended Wire Length and Diameter Disconnect switch may be required by national or local codes How to connect wiring to the terminal For Outdoor Unit  For solid core wiring or F-cable For stranded wiring For Indoor UnitWiring Instructions for the Outdoor Unit Indoor unit DIndoor unit B Indoor unit CChecking tubing and wiring Test RunPerforming a test run Connecting a Home Automation Device Installation Check SheetDC1111-0