Mitsubishi Electronics MXZ-24UV - E2 service manual Capacity and the Input Curves, Cwb, Cdb

Page 12

10 PERFORMANCE CURVES

The standard data contained in these specifications apply only to the operation of the air conditioner under normal conditions, since operating conditions vary according to the areas where these units are installed. The following information has been pro- vided to clarify the operating characteristics of the air conditioner under the conditions indicated by the performance curve.

(1)GUARANTEED VOLTAGE

198 ~ 264V

(2)AIR FLOW

Air flow should be set at MAX.

(3) MAIN READINGS

(1)

Indoor intake air wet-bulb temperature :

°CWB

} Cooling

(2)

Indoor outlet air wet-bulb temperature :

°CWB

(3)

Outdoor intake air dry-bulb temperature :

°CDB

(4)

Total input:

W

}

 

(5)

Indoor intake air dry-bulb temperature :

°CDB

Heating

(6)

Outdoor intake air wet-bulb temperature :

°CWB

(7)

Total input :

W

 

Indoor air wet/dry-bulb temperature difference on the left side of the chart on page 14 and 15 shows the difference between the indoor intake air wet/dry-bulb temperature and the indoor outlet air wet/dry-bulb temperature for your refer- ence at service.

How to measure the indoor air wet-bulb/dry-bulb temperature difference

1.Attach at least 2 sets of wet-and dry-bulb thermometers to the indoor air intake as shown in the figure, and at least 2 sets of wet-and dry-bulb thermometers to the indoor air outlet. The thermometers must be attached to the position where air speed is high.

2.Attach at least 2 sets of wet-and dry-bulb thermometers to the outdoor air intake. Cover the thermometers to prevent direct rays of the sun.

3.Check that the air filter is cleaned.

4.Open windows and doors of room.

5.Press the EMERGENCY OPERATION switch once(twice) to start the EMERGENCY COOL(HEAT) MODE.

6.When system stabilizes after more than 15 minutes, measure temperature and take an average temperature.

7.10 minutes later, measure temperature again and check that the temperature does not change.

INDOOR UNIT

Wet-and dry-bulb thermometers

OUTDOOR UNIT

Wet-and dry-bulb thermometers

10-1.CAPACITY AND THE INPUT CURVES

7.5

 

6.7

8.7

10.8

7.0

 

6.2

8.1

10.1

6.4

 

5.8

7.4

9.3

5.9

 

5.3

6.8

8.5

5.3

 

4.8

6.2

7.7

4.8

 

4.3

5.6

7.0

07 class

09 class

 

12 class

18 class

25.9

 

 

 

 

 

 

 

 

 

27.7

32.3

 

 

 

 

 

 

38.2

23.9

 

 

 

 

 

 

 

 

 

25.6

29.8

 

 

 

 

 

 

35.3

 

 

 

 

 

 

 

 

21.9

 

 

 

 

 

 

 

 

 

 

 

23.4

27.3

 

 

 

 

 

 

 

 

 

32.4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

19.9

 

 

 

 

 

 

 

 

 

 

 

 

21.3

24.9

 

 

 

 

 

 

 

 

 

 

29.4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

17.9

 

 

 

 

 

 

 

 

 

 

 

 

 

19.2

22.4

 

 

 

 

 

 

 

 

 

 

 

26.5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

15.9

 

 

 

 

 

 

 

 

17.0

19.9

 

 

 

 

 

 

23.5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

13.9

 

 

 

 

 

 

 

 

14.9

17.4

 

 

 

 

 

 

20.6

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

11.9

 

 

 

 

 

 

 

 

 

12.8

14.9

 

 

 

 

 

 

 

17.6

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

07 class

 

 

 

 

 

 

 

09 class

12 class

 

 

 

 

 

 

 

 

18 class

12

Image 12
Contents Contents MXZ-24UV E1 MXZ-24UV E2Technical Changes MXZ-24UV E1 MXZ-24UV E2Part Names and Functions Outdoor UnitIndoor / Outdoor Correspondence Table Outdoor UnitIndoor Units Combination 07+071930 7.2 470-2300 Specification MXZ-24UV E1 , MXZ-24UV E2Test conditions Cooling DB35 WB24 Heating DB0dB = Band Center FREQUENCIES, HzOutlines and Dimensions Unit mmWiring Diagram SG79A845H01Refrigerant System Diagram UnitmmCapacity and the Input Curves CWBCDB Capacity and input correction by inverter output frequency Class unit in single operationOr any button on remote controller 33Hz Ambient temperature/ Ambient humidity%Ambient temperature Heat operationCurrent 33HzOutdoor 45Hz 10 15 20 Microprocessor Control Inverter Multi System ControlSSR61 LEV control Correction Cool DRY HeatSuction superheat S.H LEV opening Operational frequency range Min MaxMin Max Rated DRY CoolDischarge temperature protection control Heat defrosting controlHigh pressure protection Refrigerant recovery control on heating Outdoor fan controlRelation between main sensor and actuator Relation between main sensor and actuatorTroubleshooting Instruction of troubleshootingBefore troubleshooting, check the following Lead wiring Housing point Troubleshooting procedureTroubleshooting check table LEVOutdoor unit operates Trouble criterion of main parts Outdoor unit does not operate. LED display display OFF Outdoor unit does not operate. LED displayWhen heating operation does not work. Start When cooling operation does not work. StartPower supply of outdoor unit was Turned off, disconnect the connectorCheck the resistance Minutes or more normal Relay P. C. boardLED Infinity Return CN722 to formerTest Point Diagram and Voltage MXZ-24UV E1 , MXZ-24UV E2 Electronic control P.C.boardNoise filter P.C.board MXZ-24UV E1 Outdoor FAN 230V AC Reversing Valve 230V ACMXZ-24UV E2 M P.C.board MXZ-24UV E1 MXZ-24UV E2 Relay P.C.board MXZ-24UV E1 MXZ-24UV E2Disassembly Instructions Outdoor Unit Operating Procedure PhotosRemoving the compressor Photo Discharge pipe brazed part Suction pipe braxed part1Remove the service panel.See Photo Removing the fan motorRemoving the 4-way valve Photo 1Remove the screws of the top panel , and remove it.SeeOperating Procedure Photos Removing the reactorParts List Outdoor Unit Functional Parts MXZ-24UV E1Outdoor Unit Structural Parts MXZ-24UV E1 6 7Accessory Parts MXZ-24UV E1 MXZ-24UV E2 MXZ-24UV MXZ-24UV MAC-855SG51H-855 Page Made in Japan

MXZ-24UV - E2, MXZ-24UV specifications

Mitsubishi Electronics has established itself as a leader in the HVAC (heating, ventilation, and air conditioning) industry with its MXZ-24UV and MXZ-24UV - E2 models. These multi-zone heat pump systems are designed to provide exceptional efficiency, comfort, and versatility for residential and commercial applications.

One of the main features of the MXZ-24UV is its ability to effectively cool and heat multiple rooms simultaneously. This system allows for the connection of up to four indoor units, enabling users to customize the climate in different spaces while maintaining energy efficiency. This zoning capability ensures you can maintain the perfect temperature in each room according to the occupants' preferences.

The MXZ-24UV incorporates advanced inverter technology, which allows the compressor to adjust its speed based on the required heating or cooling demand. This results in reduced energy consumption compared to conventional systems, providing significant savings on energy bills while also promoting a more consistent indoor temperature. The inverter-driven compressor operates quietly and efficiently, making it a suitable choice for residential areas.

Additionally, these models are equipped with a range of smart technologies. The built-in Wi-Fi capability allows homeowners to control the system remotely using a smartphone or tablet. This feature adds convenience and flexibility, enabling users to adjust settings from anywhere, ensuring their space is at the desired temperature upon arrival.

Durability is another essential characteristic of the MXZ-24UV and MXZ-24UV - E2 models. Mitsubishi has designed these units to withstand various weather conditions, enhancing longevity and reliability. The units feature a robust construction that minimizes wear and tear while ensuring dependable performance year after year.

Moreover, the system has a variety of indoor unit options, including wall-mounted, ceiling-mounted, and floor-mounted designs. This versatility makes it easy to integrate into different architectural styles and preferences, ensuring both aesthetics and functionality.

In summary, the Mitsubishi Electronics MXZ-24UV and MXZ-24UV - E2 models are designed for those seeking energy efficiency, flexibility, and durability in a multi-zone heating and cooling system. With advanced inverter technology, smart home capabilities, and a range of indoor unit styles, these systems offer exceptional comfort while minimizing energy costs, making them a top choice in the HVAC market.