Outdoor Unit

CU-4KE31NBU

 

 

 

 

 

 

Indoor Unit

CS-MKE7NKU × 3 + CS-MKE9NKU

 

 

 

 

 

Duct Less Type Rated

 

 

 

 

 

< 230V >

Type

 

 

 

 

 

4-Room Multi Outdoor Unit

 

 

 

 

 

 

 

 

 

Number of Connectable Indoor Units

 

 

 

4

 

 

 

 

 

 

 

 

 

 

Number of Operatable Indoor Units

 

 

 

4

 

 

 

 

 

 

 

 

 

Voltage Rating

 

 

 

 

230V Single-Phase 60Hz

 

 

 

 

 

 

 

 

 

 

 

Performance

 

 

 

 

 

 

Cooling

 

 

Heating

 

 

 

 

 

 

 

 

 

 

Total Capacity

 

 

BTU/h

29,000

( 9,800 to 29,000 )

 

30,600

( 11,600 to 32,000 )

 

 

 

 

 

 

 

 

 

kW

8.50

( 2.90 to 8.50 )

 

9.00

( 3.40 to 9.40 )

 

Sensible Capacity

BTU/h

 

24,400

 

 

-

 

Latent Capacity

BTU/h

 

4,600

 

 

-

 

Air Circulation

(High)

ft3/min (m3/h)

 

1,942 (3,300)

 

 

1,942 (3,300)

 

Available Voltage Range

V

 

187 to 253

 

 

Running Amperes

A

 

11.4

 

 

10.1

Rating

Power Input

 

 

 

W

 

2,600

 

 

2,300

 

 

 

 

 

 

 

 

Power Factor

 

 

%

 

99

 

 

99

Electrical

EER

 

 

 

BTU/h/W

 

11.2

 

 

-

HSPF

 

 

 

BTU/Wh

 

-

 

 

9.3

 

COP

 

 

 

W/W

 

-

 

 

13.3

 

SEER

 

 

 

BTU/Wh

 

17.2

 

 

-

 

 

 

 

 

 

 

 

 

 

Compressor Locked Rotor Amperes

A

 

 

17.0

 

 

Fuse or Circuit Breaker Capacity

A

 

 

20

 

 

 

 

 

 

 

 

Outdoor Unit

 

 

 

 

 

 

 

 

 

 

 

Control

 

 

 

 

 

Microprocessor

 

 

Fan Speeds

 

 

 

 

 

Auto (Hi, Me, Lo)

 

Features

Compressor

 

 

 

 

 

DC Twin Rotary (Inverter)

Refrigerant / Amount charged at shipment

Ibs (g)

 

R410A / 8.38 (3,800)

 

 

 

Refrigerant Control

 

 

Electric Expansion Valve

 

 

 

 

 

 

 

 

Operation Sound (High) Cool / Heat

dB-A

 

53 / 55

 

 

Refrigerant Tubing Connections

 

 

Flare Type

 

 

Max. allowable tubing length per unit

ft (m)

 

100 (30.5)

 

 

Refrigerant

 

 

Narrow tube

inch (mm)

 

1/4 (6.35) × 4

 

 

 

 

 

 

 

 

 

Tube Diameter

 

Wide tube

inch (mm)

 

3/8 (9.52) × 2 + 1/2 (12.7) × 2

Weight

 

 

 

 

 

 

Outdoor Unit

 

 

 

 

 

 

 

 

 

 

Unit Dimensions

inch

 

35-1/32 × 35-7/16 × 12-19/32

&

Height × Width × Depth

(mm)

 

(890 × 900 × 320)

 

Package Dimensions

inch

 

40-1/8 × 41-11/32 × 16-21/32

Dimensions

 

Shipping Volume

cu.ft (m3)

 

15.88 (0.45)

 

 

Height × Width × Depth

(mm)

 

(1,019 × 1,050 × 423)

 

Weight

 

 

Net

Ibs (kg)

 

180.8 (82.0)

 

 

 

 

 

Shipping

Ibs (kg)

 

189.6 (86.0)

 

 

 

 

 

 

 

 

 

 

 

 

DATA SUBJECT TO CHANGE WITHOUT NOTICE.

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-4KE31NBU 1unit

The combination indoor unit is AHRI 210/240.

 

 

 

2. Rating conditions are: Cooling : Indoor air temp. 80

°F DB / 67 °F WB

Heating : Indoor air temp. 70

°F DB

Outdoor air temp. 95

°F DB / 75 °F WB

Outdoor air temp. 47

°F DB / 43 °F WB

14

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Panasonic CU-3KE19NBU, CU-4KE24NBU service manual CU-4KE31NBU
Page 13 Page 15

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.
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