Panasonic Cu 3ks19nbucu 4ksxxnbu Technical Service Manual
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Outdoor UnitCU-4KS24NBU
Indoor UnitCS-MKS7NKU + CS-MKS9NKU × 2
< 230V >
Remarks:
1. The values shown in performance section and electrical rating section above are based on the following unit combination.
For other combination unit, please refer to the "Unit Combination Tables" in this manual.
Indoor Unit : CS-MKE7NKU 1units / CS-MKE9NKU 2units Outdoor Unit : CU-4KS24NBU 1unit
The combination indoor unit is AHRI 210/240.
2. Rating conditions are: Cooling : Indoor air temp. 80 °F DB / 67 °F WB
Outdoor air temp. 95 °F DB / 75 °F WBDATA SUBJECT TO CHANGE WITHOUT NOTICE. Compressor
Refrigerant / Amount charged at shipment Ibs (g)
Refrigerant Control10.7
2,420 24,200
7.10( 9,800 to 25,400 )
( 2.90 to 7.50 )
Shipping VolumeCooling
20,300
3,900
Net
Shipping Package Dimensions
WeightHeight × Width × Depth
Height × Width × Depth
Ibs (kg)
Ibs (kg)
cu.ft (m
3) (mm)
inch
(mm)4-Room Multi Outdoor Unit
Outdoor Unit
inch187 to 253
Dimensions & Weight
Refrigerant Tubing Connections
Unit Dimensions
Electrical Rating
Sensible Capacity
Latent Capacity
W Power InputV
A Available Voltage Range
Running Amperes
Operation Sound (High) Cool
Narrow tube
Wide tube Refrigerant inch (mm)
Tube Diameter inch (mm)
138.9
147.7(63.0)
(67.0)
13.41 (0.38) (740 × 900 × 320)Outdoor Unit
29-1/8 × 35-7/16 × 12-19/321/4 (6.35) × 4
3/8 (9.52) × 3 + 1/2 (12.7) × 1 ft (m)dB-A
Max. allowable tubing length per unitFlare Type
82 (25) R410A / 6.17 (2,800)
Electric Expansion Valve DC Twin Rotary (Inverter) Fan Speeds Auto (Hi, Me, Lo) ControlMicroprocessor
Features
Compressor Locked Rotor Amperes
50 BTU/h
Performance
% Power Factor98
A 13.0 Type
BTU/hkW Total Capacity
BTU/h
SEER BTU/Wh 18.0
4 Number of Connectable Indoor Units
4 Number of Operatable Indoor Units
230V Single-Phase 60Hz Voltage Rating
1,707 (2,900) Air Circulation (High) ft3/min (m3/h)
EER BTU/h/W 10.0
Fuse or Circuit Breaker Capacity A 20
Duct Less Type Rated
34-3/16 × 41-11/32 × 16-21/32
(868 × 1,050 × 423)
11
Outdoor UnitCU-4KS24NBU
Indoor UnitCS-MKS9NKU ×
3
< 230V >
Remarks:
1. The values shown in performance section and electrical rating section above are based on the following unit combination.
For other combination unit, please refer to the "Unit Combination Tables" in this manual.
Indoor Unit : CS-MKS9NKU 3units Outdoor Unit : CU-4KS24NBU 1unit
2. Rating conditions are: Cooling : Indoor air temp. 80 °F DB / 67 °F WB
Outdoor air temp. 95 °F DB / 75 °F WBDATA SUBJECT TO CHANGE WITHOUT NOTICE. Compressor
Refrigerant / Amount charged at shipment Ibs (g)
Refrigerant Control11.3
2,560 25,400
7.50( 9,800 to 25,400 )
( 2.90 to 7.50 )
Shipping VolumeCooling
21,400
4,000
Net
Shipping Package Dimensions
WeightHeight × Width × Depth
Height × Width × Depth
Ibs (kg)
Ibs (kg)
cu.ft (m
3) (mm)
inch
(mm)4-Room Multi Outdoor Unit
Outdoor Unit
inch187 to 253
Dimensions & Weight
Refrigerant Tubing Connections
Unit Dimensions
Electrical Rating
Sensible Capacity
Latent Capacity
W Power InputV
A Available Voltage Range
Running Amperes
Operation Sound (High) Cool
Narrow tube
Wide tube Refrigerant inch (mm)
Tube Diameter inch (mm)
138.9
147.7(63.0)
(67.0)
13.41 (0.38) (740 × 900 × 320)Outdoor Unit
29-1/8 × 35-7/16 × 12-19/321/4 (6.35) × 4
3/8 (9.52) × 3 + 1/2 (12.7) × 1 ft (m)dB-A
Max. allowable tubing length per unitFlare Type
82 (25) R410A / 6.17 (2,800)
Electric Expansion Valve DC Twin Rotary (Inverter) Fan Speeds Auto (Hi, Me, Lo) ControlMicroprocessor
Features
Compressor Locked Rotor Amperes
50 BTU/h
Performance
% Power Factor98
A 13.0 Type
BTU/hkW Total Capacity
BTU/h
4 Number of Connectable Indoor Units
4 Number of Operatable Indoor Units
230V Single-Phase 60Hz Voltage Rating
1,707 (2,900) Air Circulation (High) ft3/min (m3/h)
EER BTU/h/W 9.9
Fuse or Circuit Breaker Capacity A 20
34-3/16 × 41-11/32 × 16-21/32
(868 × 1,050 × 423)
12
Outdoor UnitCU-4KS24NBU
Indoor UnitCS-MKS9NKU ×
3
< 208V >
Remarks:
1. The values shown in performance section and electrical rating section above are based on the following unit combination.
For other combination unit, please refer to the "Unit Combination Tables" in this manual.
Indoor Unit : CS-MKS9NKU 3units Outdoor Unit : CU-4KS24NBU 1unit
2. Rating conditions are: Cooling : Indoor air temp. 80 °F DB / 67 °F WB
Outdoor air temp. 95 °F DB / 75 °F WBDATA SUBJECT TO CHANGE WITHOUT NOTICE. Compressor
Refrigerant / Amount charged at shipment Ibs (g)
Refrigerant Control12.1
2,460 24,400
7.20( 9,800 to 24,400 )
( 2.90 to 7.20 )
Shipping VolumeCooling
20,600
3,800
Net
Shipping Package Dimensions
WeightHeight × Width × Depth
Height × Width × Depth
Ibs (kg)
Ibs (kg)
cu.ft (m
3) (mm)
inch
(mm)4-Room Multi Outdoor Unit
Outdoor Unit
inch187 to 253
Dimensions & Weight
Refrigerant Tubing Connections
Unit Dimensions
Electrical Rating
Sensible Capacity
Latent Capacity
W Power InputV
A Available Voltage Range
Running Amperes
Operation Sound (High) Cool
Narrow tube
Wide tube Refrigerant inch (mm)
Tube Diameter inch (mm)
138.9
147.7
13.41 (0.38)(63.0)
(67.0) (740 × 900 × 320)Outdoor Unit
29-1/8 × 35-7/16 × 12-19/321/4 (6.35) × 4
3/8 (9.52) × 3 + 1/2 (12.7) × 1 ft (m)dB-A
Max. allowable tubing length per unitFlare Type
82 (25) R410A / 6.17 (2,800)
Electric Expansion Valve DC Twin Rotary (Inverter) Fan Speeds Auto (Hi, Me, Lo) ControlMicroprocessor
Features
Compressor Locked Rotor Amperes
50 BTU/h
Performance
% Power Factor98
A 13.0 Type
BTU/hkW Total Capacity
BTU/h
4 Number of Connectable Indoor Units
4 Number of Operatable Indoor Units
208V Single-Phase 60Hz Voltage Rating
1,707 (2,900) Air Circulation (High) ft3/min (m3/h)
EER BTU/h/W 9.9
Fuse or Circuit Breaker Capacity A 20
34-3/16 × 41-11/32 × 16-21/32
(868 × 1,050 × 423)
13
Outdoor UnitCU-4KS31NBU
Indoor UnitCS-MKS7NKU × 3 + CS-MKS9NKU
< 230V >
Remarks:
1. The values shown in performance section and electrical rating section above are based on the following unit combination.
For other combination unit, please refer to the "Unit Combination Tables" in this manual.
Indoor Unit : CS-MKE7NKU 3units / CS-MKE9NKU 1units Outdoor Unit : CU-4KS31NBU 1unit
The combination indoor unit is AHRI 210/240.
2. Rating conditions are: Cooling : Indoor air temp. 80 °F DB / 67 °F WB
Outdoor air temp. 95 °F DB / 75 °F WBDATA SUBJECT TO CHANGE WITHOUT NOTICE. Compressor
Refrigerant / Amount charged at shipment Ibs (g)
Refrigerant Control11.4
2,600 29,000
8.50( 9,800 to 29,000 )
( 2.90 to 8.50 )
Shipping VolumeCooling
24,400
4,600
Net
Shipping Package Dimensions
WeightHeight × Width × Depth
Height × Width × Depth
Ibs (kg)
Ibs (kg)
cu.ft (m
3) (mm)
inch
(mm)4-Room Multi Outdoor Unit
Outdoor Unit
inch187 to 253
Dimensions & Weight
Refrigerant Tubing Connections
Unit Dimensions
Electrical Rating
Sensible Capacity
Latent Capacity
W Power InputV
A Available Voltage Range
Running Amperes
Operation Sound (High) Cool
Narrow tube
Wide tube Refrigerant inch (mm)
Tube Diameter inch (mm)
174.2
183.0(79.0)
(83.0) 40-1/8 × 41-11/32 × 16-21/32
(1,019 × 1,050 × 423)(890 × 900 × 320)Outdoor Unit
35-1/32 × 35-7/16 × 12-19/321/4 (6.35) × 4
3/8 (9.52) × 2 + 1/2 (12.7) × 2 ft (m)dB-A
Max. allowable tubing length per unitFlare Type
100 (30.5) R410A / 8.38 (3,800)
Electric Expansion Valve DC Twin Rotary (Inverter) Fan Speeds Auto (Hi, Me, Lo) ControlMicroprocessor
Features
Compressor Locked Rotor Amperes
53 BTU/h
Performance
% Power Factor99
A 17.0 Type
BTU/hkW Total Capacity
BTU/h
SEER BTU/Wh 17.6
4 Number of Connectable Indoor Units
4 Number of Operatable Indoor Units
230V Single-Phase 60Hz Voltage Rating
1,942 (3,300) Air Circulation (High) ft3/min (m3/h)
EER BTU/h/W 11.2
Fuse or Circuit Breaker Capacity A 20
15.88 (0.45)
Duct Less Type Rated
14
Outdoor UnitCU-4KS31NBU
Indoor UnitCS-MKS9NKU ×
4
< 230V >
Remarks:
1. The values shown in performance section and electrical rating section above are based on the following unit combination.
For other combination unit, please refer to the "Unit Combination Tables" in this manual.
Indoor Unit : CS-MKS9NKU 4units Outdoor Unit : CU-4KS31NBU 1unit
2. Rating conditions are: Cooling : Indoor air temp. 80 °F DB / 67 °F WB
Outdoor air temp. 95 °F DB / 75 °F WBDATA SUBJECT TO CHANGE WITHOUT NOTICE. Compressor
Refrigerant / Amount charged at shipment Ibs (g)
Refrigerant Control12.3
2,800 30,600
9.00( 9,800 to 30,600 )
( 2.90 to 9.00 )
Shipping VolumeCooling
25,800
4,800
Net
Shipping Package Dimensions
WeightHeight × Width × Depth
Height × Width × Depth
Ibs (kg)
Ibs (kg)
cu.ft (m
3) (mm)
inch
(mm)4-Room Multi Outdoor Unit
Outdoor Unit
inch187 to 253
Dimensions & Weight
Refrigerant Tubing Connections
Unit Dimensions
Electrical Rating
Sensible Capacity
Latent Capacity
W Power InputV
A Available Voltage Range
Running Amperes
Operation Sound (High) Cool
Narrow tube
Wide tube Refrigerant inch (mm)
Tube Diameter inch (mm)
174.2
183.0(79.0)
(83.0) (890 × 900 × 320)Outdoor Unit
35-1/32 × 35-7/16 × 12-19/321/4 (6.35) × 4
3/8 (9.52) × 2 + 1/2 (12.7) × 2 ft (m)dB-A
Max. allowable tubing length per unitFlare Type
100 (30.5) R410A / 8.38 (3,800)
Electric Expansion Valve DC Twin Rotary (Inverter) Fan Speeds Auto (Hi, Me, Lo) ControlMicroprocessor
Features
Compressor Locked Rotor Amperes
53 BTU/h
Performance
% Power Factor99
A 17.0 Type
BTU/hkW Total Capacity
BTU/h
4 Number of Connectable Indoor Units
4 Number of Operatable Indoor Units
230V Single-Phase 60Hz Voltage Rating
1,942 (3,300) Air Circulation (High) ft3/min (m3/h)
EER BTU/h/W 10.9
Fuse or Circuit Breaker Capacity A 20
15.88 (0.45) 40-1/8 × 41-11/32 × 16-21/32
(1,019 × 1,050 × 423)
15
Outdoor UnitCU-4KS31NBU
Indoor UnitCS-MKS9NKU ×
4
< 208V >
Remarks:
1. The values shown in performance section and electrical rating section above are based on the following unit combination.
For other combination unit, please refer to the "Unit Combination Tables" in this manual.
Indoor Unit : CS-MKS9NKU 4units Outdoor Unit : CU-4KS31NBU 1unit
2. Rating conditions are: Cooling : Indoor air temp. 80 °F DB / 67 °F WB
Outdoor air temp. 95 °F DB / 75 °F WBDATA SUBJECT TO CHANGE WITHOUT NOTICE. Compressor
Refrigerant / Amount charged at shipment Ibs (g)
Refrigerant Control12.7
2,560 28,600
8.40( 9,800 to 28,600 )
( 2.90 to 8.40 )
Shipping VolumeCooling
24,200
4,400
Net
Shipping Package Dimensions
WeightHeight × Width × Depth
Height × Width × Depth
Ibs (kg)
Ibs (kg)
cu.ft (m
3) (mm)
inch
(mm)4-Room Multi Outdoor Unit
Outdoor Unit
inch187 to 253
Dimensions & Weight
Refrigerant Tubing Connections
Unit Dimensions
Electrical Rating
Sensible Capacity
Latent Capacity
W Power InputV
A Available Voltage Range
Running Amperes
Operation Sound (High) Cool
Narrow tube
Wide tube Refrigerant inch (mm)
Tube Diameter inch (mm)
174.2
183.0(79.0)
(83.0) (890 × 900 × 320)Outdoor Unit
35-1/32 × 35-7/16 × 12-19/321/4 (6.35) × 4
3/8 (9.52) × 2 + 1/2 (12.7) × 2 ft (m)dB-A
Max. allowable tubing length per unitFlare Type
100 (30.5) R410A / 8.38 (3,800)
Electric Expansion Valve DC Twin Rotary (Inverter) Fan Speeds Auto (Hi, Me, Lo) ControlMicroprocessor
Features
Compressor Locked Rotor Amperes
53 BTU/h
Performance
% Power Factor99
A 17.0 Type
BTU/hkW Total Capacity
BTU/h
4 Number of Connectable Indoor Units
4 Number of Operatable Indoor Units
208V Single-Phase 60Hz Voltage Rating
1,942 (3,300) Air Circulation (High) ft3/min (m3/h)
EER BTU/h/W 11.2
Fuse or Circuit Breaker Capacity A 20
15.88 (0.45) 40-1/8 × 41-11/32 × 16-21/32
(1,019 × 1,050 × 423)
16
Outdoor UnitCU-3KS19NBU 2-2-1. Outdoor Unit Control PCB Control Circuit Fuse ControlsPart No. Microprocessor 250V 25A CB-CU-3KS19NBU DATA SUBJECT TO CHANGE WITHOUT NOTICE. Pints (cc) - Micro F VAC External FinishAcrylic baked-on enamel finishFV50S ... 1.91 (900) - - Internal Controller Yes Yes Aluminum Plate Fin / Copper Tube 2 18.1 Face Area ft 2 (m2)6.40 (0.595) Coil Rows Fins per inch Heat Exchanger Coil SIC-71FW-D490-1 ... 1 Compressor Oil ... Amount 8 90 750 OhmDC Motor Type Compressor Model / Nominal Output Compressor Coil Resistance (Ambient Temp. 68 °F (20 °C)) OhmDC Twin Rotary (Hermetic) 5KD240XAB21 / 1,700W U - V : V - W : W - U :0.720 0.708 0.726 CT (Peak current cut-off control) Compressor Discharge Temp. Control Operation cut-off control in abnormal ambient Temp. Safety Device Micro F VAC Run Capacitor Crankcase HeaterYes Yes Yes Overload Relay CS-7L-2515 Model Operation Temp. Open : 239 °F (115 °C), Close : 212 °F (100 °C) - - 230V 30W 1 ... D18-1/8 (D460) Fan Propeller Q'ty ... Dia. inch (mm) Type Type Over-Current Protection Over-Heat Protection (Ambient Temp. 68 °F (20 °C)) Fan Motor Nominal Output Coil Resistance Safety DeviceRough Measure RPM (Cool) Run Capacitor Type Model ... Q'ty No. of Poles W 2-2. Major Component Specifications 17
Outdoor UnitCU-4KS24NBU Control PCB Control Circuit Fuse ControlsPart No. Microprocessor 250V 25A CB-CU-4KS24NBU DATA SUBJECT TO CHANGE WITHOUT NOTICE. Pints (cc) - Micro F VAC External FinishAcrylic baked-on enamel finishFV50S ... 1.91 (900) - - Internal Controller Yes Yes Aluminum Plate Fin / Copper Tube 2 18.1 Face Area ft 2 (m2)6.40 (0.595) Coil Rows Fins per inch Heat Exchanger Coil SIC-71FW-D490-1 ... 1 Compressor Oil ... Amount 8 90 750 OhmDC Motor Type Compressor Model / Nominal Output Compressor Coil Resistance (Ambient Temp. 68 °F (20 °C)) OhmDC Twin Rotary (Hermetic) 5KD240XAB21 / 1,700W U - V : V - W : W - U :0.720 0.708 0.726 CT (Peak current cut-off control) Compressor Discharge Temp. Control Operation cut-off control in abnormal ambient Temp. Safety Device Micro F VAC Run Capacitor Crankcase HeaterYes Yes Yes Overload Relay CS-7L-2515 Model Operation Temp. Open : 239 °F (115 °C), Close : 212 °F (100 °C) - - 230V 30W 1 ... D18-1/8 (D460) Fan Propeller Q'ty ... Dia. inch (mm) Type Type Over-Current Protection Over-Heat Protection (Ambient Temp. 68 °F (20 °C)) Fan Motor Nominal Output Coil Resistance Safety DeviceRough Measure RPM (Cool) Run Capacitor Type Model ... Q'ty No. of Poles W 18
Outdoor UnitCU-4KS31NBU Control PCB Control Circuit Fuse ControlsPart No. Microprocessor 250V 25A CB-CU-4KS31NBU DATA SUBJECT TO CHANGE WITHOUT NOTICE. Pints (cc) - Micro F VAC External FinishAcrylic baked-on enamel finishFV50S ... 2.55 (1,200) - - Internal Controller Yes Yes Aluminum Plate Fin / Copper Tube 2 18.1 Face Area ft 2 (m2)7.75 (0.72) Coil Rows Fins per inch Heat Exchanger Coil SIC-71FW-D490-1 ... 1 Compressor Oil ... Amount 8 90 800 OhmDC Motor Type Compressor Model / Nominal Output Compressor Coil Resistance (Ambient Temp. 68 °F (20 °C)) OhmDC Twin Rotary (Hermetic) 5JD420XAB22 / 3,000W U - V : V - W : W - U :0.435 0.441 0.452 CT (Peak current cut-off control) Compressor Discharge Temp. Control Operation cut-off control in abnormal ambient Temp. Safety Device Micro F VAC Run Capacitor Crankcase HeaterYes Yes Yes Overload Relay CS-7L-2515 Model Operation Temp. Open : 239 °F (115 °C), Close : 212 °F (100 °C) - - 230V 30W 1 ... D18-1/8 (D460) Fan Propeller Q'ty ... Dia. inch (mm) Type Type Over-Current Protection Over-Heat Protection (Ambient Temp. 68 °F (20 °C)) Fan Motor Nominal Output Coil Resistance Safety DeviceRough Measure RPM (Cool) Run Capacitor Type Model ... Q'ty No. of Poles W 19
Temperature F ( C) 40 35 30 25 20 15 10 5 0 ( -20)(-15)(-10) (-5) (0) (5) (10) (15) (20)-4 5 14 23 32 41 50 59 68 Resistance (k ohm) 0 32 50 68 86 104 122 140 158 176 194 40 60 80 100 120 140 160 180 200 20 Resistance (k ohm) (0) (10) (20) (30) (40) (50) (60) (70) (80) (90) Temperature F ( C) 2-3. Other Component Specifications CU-3KS19NBU CU-4KS24NBU CU-4KS31NBU Sensor Name Compressor temp sensor TKS293BModel No. of sensor 11Quantity of Sensor 1 Outdoor air temp sensor Outdoor heat exchanger sensor AW / AN sensor BW / BN sensor CW / CN sensor DW / DN sensorTKS295B TKS292B TKS292B TKS292B TKS292B TKS292B Model No. of sensor Sensor Name 1 1 1 / 1 1 / 1 1 / 1 0Quantity of Sensor 1 1 1 / 1 1 / 1 1 / 1 1 / 1 1 1 1 / 1 1 / 1 1 / 1 1 / 1 CU-3KS19NBU CU-4KS24NBU CU-4KS31NBU 20