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Haier AC28NACBEA User Manual

Haier AC28NACBEA
136 pages
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MANUAL CODE: SYJS-005 -03 Rev.0 .
Haier Group
Auto-Restart function
Group control(with a group controller)
Auto-changeover
The same outdoor unit can match with cassette \convertible\
duct type indoor unit
With new environment friendly refrigerant R407C
Weekly timing(with a weekly timer)
Features
Service Manual
Commercial Air Conditioning
24 28 Universal Outdoor Unit air conditioning
AC28NACBEA+AU28NAHBEA
AD28NAMBEA+AU28NAHBEA
AB28NACBEA+AU28NAHBEA
Remotoe control and Wired remote control(Optional)
AB242ACBEA+AU242AHBEA
AC242ACBEA+AU242AHBEA
AD242AMBEA+AU242AHBEA
AD242AHBE A+ AU242AHBEA
AP242ACBE A+ AU242AHBEA
AU282AHBEA
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Haier AC28NACBEA Specifications

General IconGeneral
RefrigerantR32
Outdoor Unit Noise Level50 dB
Power Supply220-240V, 50Hz
ColorWhite
TypeSplit
Cooling Capacity2800 W
FunctionsCooling
Dimensions (Outdoor Unit)700 x 245 x 544 mm

Summary

1. Description of Products & Features

Products coding direction

Explains the coding system for outdoor and indoor unit models.

Standard working condition

Details standard operating conditions for cooling and heating modes.

Brief introduction of the series

Introduces convertible and duct types, highlighting their features.

2. Specifications

Model Specifications Table

Presents detailed technical specifications for various air conditioner models.

3. Safety precaution

General Safety Precautions

Provides essential safety warnings and precautions for installation and operation.

Grounding and Electrical Safety

Details requirements for proper grounding and electrical safety measures.

4. Net dimensions of indoor and outdoor unit

Indoor Unit Dimensions

Diagrams showing dimensions for AB242ACBEA, AB28NACBEA, AD242AMBEA, AD28NAMBEA indoor units.

Outdoor Unit Dimensions

Diagrams showing dimensions for AD242AHBEA and AC242ACBEA outdoor units.

Additional Outdoor Unit Dimensions

Diagrams for AC28NACBEA and AU series outdoor units.

5. Installation instructions

Installation Tools and Accessories

Lists required installation tools and standard accessories provided with the unit.

Installation Procedures

Details the order of installation work, including piping, wiring, and testing.

Refrigerant Piping and Vacuumizing

Covers refrigerant piping size, limitations, connection, and vacuumizing procedures.

Electrical Wiring

Provides instructions for electrical wiring connections, including safety precautions.

6. PARTS AND FUNCTIONS

Indoor Unit Parts and Functions

Identifies parts and functions of various indoor unit types (Cassette, High ESP Duct).

Remote Controller Functions

Explains the operation and functions of the remote controller.

Wired Controller Functions

Details the buttons and functions of the wired controller.

8. Refrigerant Diagram

Refrigerant Flow Diagram

Illustrates the refrigerant flow during cooling and heating operations.

9. Electrical Control Functions

Operation Flow Charts

Flow charts detailing unit operation for turn on/off, cooling, dehumidifying, and heating.

10. Diagnostic information

Failure Codes

Lists failure codes for remote and wired control units with descriptions and reasons.

Troubleshooting Flow Charts

Provides flow charts for diagnosing cooling and heating malfunctions.

11. Electrical Data

Outdoor Unit Wiring Diagrams

Shows wiring diagrams for single-phase and three-phase outdoor units.

Indoor Unit Wiring Diagrams

Presents wiring diagrams for convertible, cassette, and duct type indoor units.

PCB Information and Circuit Diagrams

Details PCB information, circuit diagrams, and port definitions.

12. Exploded Views & Part Lists

Outdoor Unit Exploded Views and Parts List

Provides exploded views and detailed parts lists for outdoor units (24/28).

Indoor Unit Exploded Views and Parts List

Offers exploded views and parts lists for AC242ACBEA indoor units.

13. Performance Curves

Cooling Performance Curves

Graphs showing cooling capacity and EER based on indoor/outdoor conditions.

Heating Performance Curves

Graphs illustrating heating capacity and COP based on indoor/outdoor conditions.

15. AIR VELOCITY DISTRIBUTION

AC28NACBEA Air Velocity and Temperature Distribution

Shows air velocity and temperature distribution for AC28NACBEA model.

AB28NACBEA Air Velocity and Temperature Distribution

Illustrates air velocity and temperature distribution for AB28NACBEA model.

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