Haier AU60NAIEAA User Manual

Commercial Air Conditioning
SERVICE MANUAL
Models

AU182AEEAA
AU242AGEAA
AU48NAIEAA
AU60NAIEAA
AP482AKEAA
zFeatures
zHigh energy efficiency
zFixed frequency
zOptional different side frame color
zQuiet operation
zAuxiliary electric heating function (optional)
zNew friendly refrigerant R410a, environment protection
zWeekly timer (standard)
zGroup control function
zAuto restart function
Manual code: SYJS-029-06REV.0 Edition: 2006-08-24

Haier AU60NAIEAA Specifications

General

Brand	Haier
Model	AU60NAIEAA
Category	Air Conditioner
Language	English

Summary

8. Electrical Control Functions

8.1 For cabinet indoor unit

Explains automatic fan control and automatic run modes for cabinet indoor units.

8.2 For outdoor unit

Covers outdoor motor control, defrosting conditions, and defrost operation.

11. Troubleshooting

1) Pressure protection

Guides on diagnosing and resolving problems related to high or low system pressure.

2) Sensor failure

3) Low pressure protection

Outlines troubleshooting steps for low-pressure protection faults.

4) High pressure protection

Outlines troubleshooting steps for high-pressure protection faults.

5) Communication error between indoor and outdoor units

6) Communication failure between wired controller and indoor PCB

7) High current protection in 3-phase fixed frequency models

9) Overcurrent protection for single-phase fixed frequency models

10) Temperature cutoff protection

12) Phase loss or phase failure

13) Fault in indoor fan motor

14) Troubleshooting (before replacement of PCB)

Outlines a general troubleshooting process before considering PCB replacement.