Panasonic CU-4KS31NBU service manual 15,180 18,570

Page 57

Outdoor Unit

: CU-3KS19NBU

 

 

 

 

 

 

 

 

 

Indoor Unit

: CS-MKS12NB4U × 3

 

 

 

 

 

 

 

Power Supply : 230V Single Phase 60Hz

 

 

 

 

 

 

 

 

< Cooling Capacity (Low Ambient) >

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RATING CAPACITY:

18,300 BTU/h

 

AIR FLOW RATE:

 

706 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

 

 

18,680

18,570

 

18,560

18,620

18,490

 

 

72 (22.2)

SHC

 

 

15,180

18,570

 

15,180

15,180

15,180

 

59

76 (24.4)

SHC

 

 

17,510

18,570

 

17,510

17,510

17,510

 

(15.0)

80 (26.7)

SHC

 

 

18,680

18,570

 

18,560

18,620

18,490

 

 

84 (28.9)

SHC

 

 

18,680

18,570

 

18,560

18,620

18,490

 

 

88 (31.1)

SHC

 

 

18,680

18,570

 

18,560

18,620

18,490

 

 

 

TC

 

 

19,020

18,960

 

19,030

19,180

19,100

 

 

72 (22.2)

SHC

 

 

12,300

18,960

 

12,300

12,430

12,430

 

63

76 (24.4)

SHC

 

 

14,630

18,960

 

14,770

14,770

14,770

 

(17.2)

80 (26.7)

SHC

 

 

17,100

18,960

 

17,100

17,230

17,230

 

 

84 (28.9)

SHC

 

 

19,020

18,960

 

19,030

19,180

19,100

 

 

88 (31.1)

SHC

 

 

19,020

18,960

 

19,030

19,180

19,100

 

 

 

TC

 

 

19,260

19,260

 

19,420

19,690

19,670

 

 

72 (22.2)

SHC

 

 

9,420

19,260

 

9,550

9,690

9,550

 

67

76 (24.4)

SHC

 

 

11,750

19,260

 

11,890

12,020

12,020

 

(19.4)

80 (26.7)

SHC

 

 

14,220

19,260

 

14,350

14,350

14,350

 

 

84 (28.9)

SHC

 

 

16,550

19,260

 

16,690

16,690

16,690

 

 

88 (31.1)

SHC

 

 

18,880

19,260

 

19,020

19,020

19,020

 

 

 

TC

 

 

19,360

19,430

 

19,700

20,110

20,170

 

 

72 (22.2)

SHC

 

 

6,400

19,430

 

6,540

6,670

6,670

 

71

76 (24.4)

SHC

 

 

8,730

19,430

 

8,870

9,000

9,000

 

(21.7)

80 (26.7)

SHC

 

 

11,200

19,430

 

11,340

11,470

11,470

 

 

84 (28.9)

SHC

 

 

13,530

19,430

 

13,670

13,810

13,810

 

 

88 (31.1)

SHC

 

 

15,860

19,430

 

16,000

16,140

16,140

 

 

 

TC

 

 

19,290

19,440

 

19,840

20,390

20,550

 

75

76 (24.4)

SHC

 

 

5,850

19,440

 

5,990

6,120

6,120

 

(23.9)

80 (26.7)

SHC

 

 

8,180

19,440

 

8,460

8,590

8,590

 

 

84 (28.9)

SHC

 

 

10,510

19,440

 

10,790

10,930

10,930

 

 

88 (31.1)

SHC

 

 

12,980

19,440

 

13,120

13,260

13,260

 

 

 

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.

57

Image 57
Contents DC Inverter MULTI-SYSTEM AIR Conditioner Safety Precautions Prohibit Table of Contents Appendix a Semi-Concealed Type Wall Mounted TypeOperating Range Outdoor Unit CU-3KS19NBU Unit SpecificationsIndoor Unit CS-MKS9NKU × Duct Less Type RatedIndoor Unit Outdoor 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 Outdoor Unit Major Component SpecificationsOutdoor Unit CU-4KS24NBU Outdoor Unit CU-4KS31NBU CU-3KS19NBU CU-4KS24NBU CU-4KS31NBU Other Component SpecificationsDimensional Data Unit inchmm 852-0-0010-20500-0 Unit inchmm 852-0-0010-20600-0 Insulation of Refrigerant Tubing Refrigerant Flow DiagramIndoor 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 × Outdoor Unit CU-3KS19NBU Indoor Unit CS-MKS12NKU × Cooling CharacteristicsOutdoor 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 × Outdoor Unit CU-4KS24NBU Indoor Unit CS-MKS7NKU × Temperature Charts CU-4KS24NBUOutdoor 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 × Indoor Outdoor Cooling CapacityCS-MKS12NB4U × Power Supply 230V Single Phase 60Hz Cooling CapacityCS-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 Outdoor Unit CU-3KS19NBU 8FA2-5251-11800-1 Electric Wiring DiagramsOutdoor Unit CU-4KS24NBU 8FA2-5251-11600-1 Outdoor Unit CU-4KS31NBU 8FA2-5251-11400-1 Explanation of Functions FunctionsCool DRY Fluctuation fanLow Ambient Cooling Operation Current Control Protective FunctionsDescription of function Automatic frequency controlCompressor Temperature Control Low Start CurrentCurrent control Precautions before Performing Inspection or Repair Troubleshooting Before Calling for ServiceTrouble 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 Trouble Diagnosis of Each Part Problems of Each Part and Inspection PointsOutdoor control circuit board Inspection Points for Each PartFuse CompressorCU-3KS19NBU MV0 MV1 MV2 CU-4KS24NBU MV3 CU-4KS31NBU Electric expansion valveBranch tubing temperature sensor BreakerRefrigerant gas pressure Diagnostic results Diagnostic procedureRemedy for symptom 3 to Trouble Diagnosis of Fan MotorWhat is New Refrigerant R410A? Characteristics of New Refrigerant R410ACharacteristics Components mixing proportionsChecklist before Servicing Tools Specifically for R410A Tubing Installation ProceduresCase of Compressor Malfunction Procedure for Replacing CompressorExample Amount in the charging cylinder is less than 20%To prevent the composition R410A from changingCase Refrigerant is Leaking Welding leaking pointsRecharging Charging Additional Refrigerant When Tubes are ExtendedRetro-Fitting Existing Systems Use of Existing Units852-6-4190-581-00-1 For Outdoor Unit ContentsPlease Read Before Starting ‡ 8VHWKHIODUHPHWKRGIRUFRQQHFWLQJWXELQJ Fins of the outdoor unit. You may get injuredGeneral 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 It is recommended to use baffle plates Baffle Plate for the Outdoor UnitFront BackAir Discharge Baffle Air Intake BafflePrecautions for installation CU-3KS19NBU Outer Dimensions of Outdoor UnitCU-4KS24NBU CU-4KS31NBUNever install only a single indoor unit Diagram of Outdoor Unit InstallationInstallation Process Flaring Procedure with a Flare ToolUse of the Flaring Method Tubing Connections To 0.5 mm Adjust so that the amount of tubeTo prevent heat loss and wet floors due to dripping of con Insulation of Refrigerant Tubing For wall-mounted units  For ceiling-mounted cassette unitsFinishing the Installation Air Purging Air Purging with a Vacuum Pump for Test Run Adapter manual, and use the adapter correctly External diameter of service port R410A 5/16Pump-down procedure What is pump-down? 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 For Outdoor Unit  For solid core wiring or F-cable How to connect wiring to the terminal For stranded wiring For Indoor UnitIndoor unit D Wiring Instructions for the Outdoor UnitIndoor unit B Indoor unit CChecking tubing and wiring Test RunPerforming a test run Installation Check Sheet Connecting a Home Automation DeviceDC1111-0