Panasonic CU-4KS31NBU service manual CS-MKS9NB4U ×

Page 55

Outdoor Unit

: CU-4KS31NBU

 

 

 

 

 

 

 

 

 

Indoor Unit

: CS-MKS9NB4U × 4

 

 

 

 

 

 

 

 

 

Power Supply : 230V Single Phase 60Hz

 

 

 

 

 

 

 

 

 

< Cooling Capacity >

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RATING CAPACITY:

28,600 BTU/h

 

AIR FLOW RATE:

883 CFM

 

INDOOR

 

 

 

 

 

OUTDOOR

 

 

 

 

 

ENT. TEMP. o F (o C)

 

 

 

AMBIENT TEMP. o F (o C)

 

 

 

WB

 

DB

 

 

65

75

85

 

95

105

115

 

 

 

 

 

 

(18.3)

(23.9)

(29.4)

 

(35.0)

(40.6)

(46.1)

 

 

 

 

 

TC

28,830

27,880

26,840

 

26,270

21,300

15,500

 

 

72

(22.2)

 

SHC

22,560

22,210

21,700

 

21,360

19,130

15,500

 

59

76

(24.4)

 

SHC

25,810

25,470

24,960

 

24,610

21,300

15,500

 

(15.0)

80

(26.7)

 

SHC

28,830

27,880

26,840

 

26,270

21,300

15,500

 

 

84

(28.9)

 

SHC

28,830

27,880

26,840

 

26,270

21,300

15,500

 

 

88

(31.1)

 

SHC

28,830

27,880

26,840

 

26,270

21,300

15,500

 

 

 

 

 

TC

29,960

29,000

27,940

 

27,440

21,790

15,830

 

 

72

(22.2)

 

SHC

18,780

18,270

17,930

 

17,580

15,360

12,960

 

63

76

(24.4)

 

SHC

22,040

21,700

21,180

 

21,010

18,610

15,830

 

(17.2)

80

(26.7)

 

SHC

25,470

25,130

24,610

 

24,440

21,790

15,830

 

 

84

(28.9)

 

SHC

28,730

28,390

27,870

 

27,440

21,790

15,830

 

 

88

(31.1)

 

SHC

29,960

29,000

27,940

 

27,440

21,790

15,830

 

 

 

 

 

TC

31,060

30,090

29,010

 

#

28,600

22,220

16,110

 

 

72

(22.2)

 

SHC

14,840

14,500

13,980

 

13,810

11,410

9,180

 

67

76

(24.4)

 

SHC

18,100

17,760

17,410

 

17,240

14,670

12,440

 

(19.4)

80

(26.7)

 

SHC

21,530

21,180

20,840

 

20,670

18,100

15,870

 

 

84

(28.9)

 

SHC

24,780

24,440

24,100

 

23,930

21,360

16,110

 

 

88

(31.1)

 

SHC

28,210

27,700

27,360

 

27,180

22,220

16,110

 

 

 

 

 

TC

32,080

31,110

30,020

 

29,730

22,560

16,340

 

 

72

(22.2)

 

SHC

10,730

10,380

10,040

 

9,870

7,470

5,410

 

71

76

(24.4)

 

SHC

13,980

13,640

13,300

 

13,130

10,730

8,670

 

(21.7)

80

(26.7)

 

SHC

17,410

17,070

16,730

 

16,560

14,160

12,100

 

 

84

(28.9)

 

SHC

20,670

20,330

19,980

 

19,810

17,410

15,360

 

 

88

(31.1)

 

SHC

23,930

23,580

23,240

 

23,240

20,670

16,340

 

 

 

 

 

TC

32,920

31,940

30,850

 

30,690

22,770

16,470

 

75

76

(24.4)

 

SHC

10,040

9,700

9,360

 

9,360

6,780

4,900

 

(23.9)

80

(26.7)

 

SHC

13,470

13,130

12,780

 

12,780

10,210

8,330

 

 

84

(28.9)

 

SHC

16,730

16,380

16,040

 

16,040

13,470

11,760

 

 

88

(31.1)

 

SHC

19,980

19,640

19,300

 

19,300

16,730

15,010

TC : Total Cooling Capacity (BTU/h) SHC : Sensible Heat Capacity (BTU/h)

NOTE

1.Rating conditions (#) : Indoor Unit Entering Air Temp. 80 °F (26.7 °C) DB / 67 °F (19.4 °C) WB

:Outdoor Ambient Temp. 95 °F (35 °C) DB

2.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.

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

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Image 55
Contents DC Inverter MULTI-SYSTEM AIR Conditioner Safety Precautions Prohibit Table of Contents Appendix a Semi-Concealed Type Wall Mounted TypeOperating Range Duct Less Type Rated Unit SpecificationsOutdoor Unit CU-3KS19NBU Indoor Unit CS-MKS9NKU ×Indoor 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 Outdoor unit Refrigerant Flow DiagramInsulation of Refrigerant Tubing Indoor unitIndoor unit Outdoor unit 1/4 Strainer Header Sub Main Compressor Accumulator Temperature Charts CU-3KS19NBU Temperature ChartsOutdoor 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 Automatic frequency control Protective FunctionsCurrent Control Description of functionLow Start Current Compressor Temperature ControlCurrent control Precautions before Performing Inspection or Repair Troubleshooting Before Calling for ServiceLocation of the Error Monitor Lamps Trouble Diagnosis by Error Monitor LampsDisplay of the Error Monitor Lamps Checking the Outdoor System Work procedure Check items unit operationChecking the outdoor unit Trouble Diagnosis of Each Part Problems of Each Part and Inspection PointsCompressor Inspection Points for Each PartOutdoor control circuit board FuseCU-3KS19NBU MV0 MV1 MV2 CU-4KS24NBU MV3 CU-4KS31NBU Electric expansion valveBreaker Branch tubing temperature sensorRefrigerant gas pressure Trouble Diagnosis of Fan Motor Diagnostic procedureDiagnostic results Remedy for symptom 3 toComponents mixing proportions Characteristics of New Refrigerant R410AWhat is New Refrigerant R410A? CharacteristicsChecklist before Servicing Tools Specifically for R410A Tubing Installation ProceduresCase of Compressor Malfunction Procedure for Replacing CompressorR410A from changing Amount in the charging cylinder is less than 20%Example To prevent the compositionWelding leaking points Case Refrigerant is LeakingRecharging Use of Existing Units When Tubes are ExtendedCharging Additional Refrigerant Retro-Fitting Existing Systems852-6-4190-581-00-1 For Outdoor Unit ContentsPlease Read Before Starting ‡ 8VHWKHIODUHPHWKRGIRUFRQQHFWLQJWXELQJ Fins of the outdoor unit. You may get injuredGeneral For wall-mounted units Installation Site SelectionFor ceiling-mounted cassette units H1, H2, H3, H4 Connecting indoor unit for CU-3KS19NBU Connecting Indoor UnitsConnecting indoor unit for CU-4KS24NBU 815.88mm Locally purchased Connecting indoor unit for CU-4KS31NBU CS-MKS24NKU Back Baffle Plate for the Outdoor UnitIt is recommended to use baffle plates FrontAir Discharge Baffle Air Intake BafflePrecautions for installation CU-4KS31NBU Outer Dimensions of Outdoor UnitCU-3KS19NBU CU-4KS24NBUNever install only a single indoor unit Diagram of Outdoor Unit InstallationFlaring Procedure with a Flare Tool Installation ProcessUse of the Flaring Method Tubing Connections To 0.5 mm Adjust so that the amount of tube For ceiling-mounted cassette units Insulation of Refrigerant TubingTo prevent heat loss and wet floors due to dripping of con  For wall-mounted unitsAir Purging Finishing the Installation Air Purging with a Vacuum Pump for Test Run Adapter manual, and use the adapter correctly External diameter of service port R410A 5/16If pump-down is not possible What is pump-down?Pump-down procedure  Pump DownGeneral Precautions on Wiring Wiring InstructionsRecommended Wire Length and Diameter Disconnect switch may be required by national or local codes For Indoor Unit How to connect wiring to the terminalFor Outdoor Unit  For solid core wiring or F-cable  For stranded wiringIndoor unit C Wiring Instructions for the Outdoor UnitIndoor unit D Indoor unit BTest Run Checking tubing and wiringPerforming a test run Installation Check Sheet Connecting a Home Automation DeviceDC1111-0