Outdoor Unit CU-4KE31NBU

Indoor Unit CS-MKE18NKU × 1

 

Cooling Characteristics

 

 

Heating Characteristics

 

 

 

 

 

 

(RH : 46%, Indoor fan speed : High fan) (230V, 60Hz)

(RH : 85%, Indoor fan speed : High fan) (230V, 60Hz)

(1) Low pressure performance chart

servicevalve

psig(MPaG)

174

 

 

Lo fan

Hi fan

 

 

 

 

(1.2)

 

 

 

 

 

 

 

 

 

tube

 

146

 

 

 

 

at wide

 

(1.0)

 

 

 

 

 

 

 

. 86°F

(30°C)

 

pressure

 

 

Indoor

air temp

 

 

 

 

 

(27°C)

 

 

118

 

80°F

 

 

(0.8)

 

 

 

 

 

 

 

75°F

(24°C)

 

Low

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

90

 

 

 

 

 

 

(0.6)77

 

86

95

104

 

 

(25)

 

(30)

(35)

(40)

Outdoor air temperature °F (°C)

(2) Operating current performance chart

(1) High pressure performance chart

service valve

psig (MPaG)

506

 

 

 

 

(23°C)

 

 

 

(3.5)

 

 

 

73°F

 

 

 

 

 

 

 

.

 

 

 

 

 

 

 

temp

 

 

 

 

 

 

air

(21°C)

 

 

 

 

434

Indoor

 

 

 

 

 

(3.0)

 

70°F

(17°C)

 

 

 

 

tube

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

63°F

 

 

 

 

 

 

 

 

 

 

 

 

 

 

wide

 

362

 

 

 

 

 

 

 

 

 

(2.5)

 

 

 

 

 

 

 

 

at

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

pressure

 

290

 

 

 

 

 

 

 

 

 

(2.0)

 

 

 

 

 

 

 

 

High

 

 

 

 

 

 

 

 

 

 

 

 

218

 

 

 

 

 

 

 

 

 

 

(1.5) 23

32

 

41

50

59

68

77

 

 

(-5)

(0)

 

(5)

(10)

(15)

(20)

(25)

Outdoor air temperature °F (°C)

(2) Operating current performance chart

 

9

 

 

 

 

 

 

 

 

Lo fan

Hi fan

 

8

 

 

 

 

(A)

 

 

 

(30°C)

 

 

 

.86°F

 

current

 

 

 

7

air

temp

 

 

(27°C)

 

 

Indoor

80°F

(24°C)

 

 

 

 

Operating

 

 

75°F

 

6

 

 

 

 

 

 

 

 

 

 

 

 

 

5

 

 

 

 

 

4

86

 

95

104

 

77

 

 

(25)

(30)

 

(35)

(40)

Operating current (A)

14

13

12

11

23

(-5)

Indoor

 

 

73°F

(23°C)

 

.

 

air

temp

(21°C)

70°F

 

(17°C)

 

 

 

 

 

 

 

63°F

 

 

32

41

50

59

68

77

(0)

(5)

(10)

(15)

(20)

(25)

Outdoor air temperature °F (°C)

(3) Indoor discharge air performance chart

°F (°C)

 

 

Lo fan

 

Hi fan

68.0(20)

 

 

 

 

temperature

 

 

 

 

64.4(18)

 

 

 

 

60.8(16)

 

 

 

 

 

 

. 86°F (30°C)

 

air

 

 

 

57.2(14)

Indoor

air temp

 

 

discharge

 

 

 

 

 

 

 

 

 

80°F

(27°C)

 

53.6(12)

 

 

 

 

 

(24°C)

 

 

 

75°F

 

50.0(10)

 

 

 

 

 

 

 

Indoor

 

 

 

 

46.4( 8)

 

 

 

 

 

77

86

95

 

104

 

(25)

(30)

(35)

 

(40)

Outdoor air temperature °F (°C)

Outdoor air temperature °F (°C)

(3) Indoor discharge air performance chart

 

140(60)

 

 

 

(23°C)

 

 

 

 

 

 

.

73°F

 

 

 

(°C)

 

 

 

 

 

 

131(55)

 

temp

 

 

 

 

 

 

air

 

 

 

 

 

°F

Indoor

(21°C)

 

 

 

 

 

temperature

122(50)

 

 

 

 

 

 

70°F

 

 

 

 

 

 

 

 

 

 

 

113(45)

 

(17°C)

 

 

 

 

 

63°F

 

 

 

 

 

104(40)

 

 

 

 

 

 

 

air

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

discharge

95(35)

 

 

 

 

 

 

 

86(30)

 

 

 

 

 

 

 

Indoor

 

 

 

 

 

 

 

77(25)

 

 

 

 

 

 

 

 

23

32

41

50

59

68

77

 

(-5)

(0)

(5)

(10)

(15)

(20)

(25)

Outdoor air temperature °F (°C)

NOTE

•This performance chart shows operation of a single wall-mounted indoor unit. The performance chart will vary depending on the indoor unit type.

•Check each performance value in test-run mode. Electrical performance values represent a combined indoor/outdoor value. (In this case, be sure to stop all the indoor units where performance is not being checked.)

•The performance is for a tubing length of 24.6ft (7.5m). If the tubing length is different, the performance chart will vary.

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Panasonic CU-4KE31NBU, CU-4KE24NBU, CU-3KE19NBU service manual Indoor 73F 23C Air Temp
Page 44 Page 46

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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