Fujitsu ASU 9RLF1 User Manual

SPLIT TYPE
ROOM AIR CONDITIONER
WALL MOUNTED
type
Models Indoor unit Outdoor unit
INVERTER
SERVICE
INSTRUCTION
R410A
ASU 9RLF1
ASU12RLF1
AOU 9RLFW1
AOU12RLFW1

Fujitsu ASU 9RLF1 Specifications

General

Brand	Fujitsu
Model	ASU 9RLF1
Category	Air Conditioner
Language	English

Summary

1. Description of Each Control Operation

1. Cooling Operation

Explains cooling capacity control based on room and set temperatures.

2. Heating Operation

Explains heating capacity control based on room and set temperatures.

3. Dry Operation

Details indoor unit control for dry mode, including compressor speed.

4. Auto Changeover Operation

Describes automatic switching between heating, cooling, and dry modes.

5. Indoor Fan Control

Covers fan speed settings and airflow control for various modes.

6. Outdoor Fan Control

Details outdoor fan motor type and fan speed control.

7. Louver Control

Explains vertical and horizontal louver adjustments and swing operations.

8. Compressor Control

Covers compressor operation frequency ranges and control at start-up.

9. Timer Operation Control

Describes ON timer, OFF timer, PROGRAM timer, and SLEEP timer functions.

10. Electronic Expansion Valve Control

Details EEV control based on operating conditions.

11. Test Operation Control

Provides methods for performing test operations using controls.

12. Prevent to Restart for 3 Minutes (3 Minutes ST)

Explains the 3-minute restart prevention for the compressor.

13. Four-Way Valve Extension Select

Describes the switching sequence of the four-way valve.

14. Auto Restart

Explains automatic restart after a power interruption.

15. Manual Auto Operation

Details operation using the indoor unit's manual button.

16. Forced Cooling Operation

Explains the forced cooling test operation mode.

17. Compressor Preheating

Describes the compressor heating process based on outdoor temp.

18. Min.(Minimum) Heat Operation

Details the minimum heat operation mode.

19. Economy Operation

Explains the energy-saving economy operation mode.

20. Powerful Operation

Describes the maximum power operation mode.

21. Defrost Operation Control

Details the conditions for starting and completing defrost operations.

22. Off Defrost Operation Control

Explains the automatic defrost operation when heating stops.

23. Various Protections

Covers discharge gas temperature overrise and current release controls.

2. Trouble Shooting

2-1 Error Display

Lists error codes and indicator patterns for indoor and wired remote controllers.

2-2 Trouble Shooting With Error Code

Provides diagnostic steps for specific error codes.

2-3 Trouble Shooting With No Error Code

Offers troubleshooting for issues without error codes.

2-4 Service Parts Information

Lists diagnostic methods for key components like the compressor.

3. Appending Data

3-1 Function Setting

Explains how to configure various unit functions via remote control.

3-2 Thermistor Resistance Values

Provides resistance and voltage values for thermistors at different temperatures.