Sleep Timer Operation, About the Sleep Timer

SLEEP TIMER OPERATION

Unlike other timer functions, the SLEEP timer is used to set the length of time until air conditioner operate is stopped.

To Use the SLEEP Timer

While the air conditioner is operating or stopped, press the SLEEP button (Fig. 6 S).

The indoor unit’s OPERATION Indicator Lamp (red) (Fig. 3 5) lights and the TIMER Indicator Lamp (green) (Fig. 3 6) light.

To Change the Timer Settings

Press the SLEEP button (Fig. 6 S) once again and set the time using the TIMER SET( / ) buttons (Fig. 6 V).

Set the time while the Timer Mode Display is flashing (the flashing will continue about five seconds).

button: Press to advance the time. button: Press to reverse the time.

About five seconds later, the entire display will reappear.

To Cancel the Timer:

Use the TIMER MODE button to select “CANCEL”.

The air conditioner will return to normal operation.

To Stop the Air Conditioner During Timer Operation:

Press the START/STOP button.

About the SLEEP Timer

To prevent excessive warming or cooling during sleep, the SLEEP timer function automatically modifies the thermostat setting in accordance with the set time setting. When the set time has elapsed, the air conditioner completely stops.

During Heating operation:

When the SLEEP timer is set, the thermostat setting is automatically lowered 2 °F every thirty minutes.When the ther- mostat has been lowered a total of 8 °F, the thermostat setting at that time is maintained until the set time has elapsed, at which time the air conditioner automatically turns off.

During Cooling/Dry operation:

When the SLEEP timer is set, the thermostat setting is auto- matically raised 2 °F every sixty minutes. When the thermo- stat has been raised a total of 8 °F, the thermostat setting at that time is maintained until the set time has elapsed, at which time the air conditioner automatically turns off.

SLEEP timer setting				SLEEP timer setting
				SLEEP timer setting
2 °F	4 °F	6 °F	8 °F
	4 °F			Set time


30
minutes				1 hour
				1 hour
1 hour
1 hour				2 °F	4 °F
1 hour				2 °F

30 minutes

Set time

En-9

AOU18RLQ, AOU15RLQ, ASU18RLQ, ASU15RLQ specifications

Fujitsu is a prominent name in the HVAC industry, known for its innovative air conditioning solutions that combine efficiency, comfort, and advanced technologies. Among its popular models are the AOU15RLQ, AOU18RLQ, ASU15RLQ, and ASU18RLQ. These units are designed to meet diverse cooling and heating needs for residential and commercial spaces.

The AOU15RLQ and AOU18RLQ are outdoor units that serve as the backbone of Fujitsu's multi-split air conditioning systems. One of their main features is their ENERGY STAR certification, which ensures superior energy efficiency. Both models incorporate inverter technology, allowing them to adjust their cooling and heating output based on the current demand. This leads to reduced energy consumption and increased comfort.

Moreover, these outdoor units operate quietly, providing a peaceful environment for users. They are designed with a compact footprint, making them suitable for various installation locations. The AOU series also supports multi-zone configurations, allowing homeowners to control different areas of their space independently, thereby enhancing comfort and efficiency.

On the other hand, the ASU15RLQ and ASU18RLQ are the corresponding indoor units that work seamlessly with their outdoor counterparts. These models feature a sleek design that can effortlessly blend into any décor. They utilize advanced air filtration systems that capture dust, allergens, and other pollutants, promoting indoor air quality.

Both indoor models offer multiple fan speeds and adjustable airflow direction, ensuring optimal distribution of conditioned air. The ASU series is equipped with user-friendly remote controls and includes programmable timers, allowing for customizable operation that aligns with users' schedules.

Fujitsu has also integrated smart technology into these units. The models can be connected to Wi-Fi, enabling users to control their air conditioning systems remotely through their smartphones. This integration facilitates monitoring and adjusting settings from anywhere, enhancing convenience.

In summary, the Fujitsu AOU15RLQ, AOU18RLQ, ASU15RLQ, and ASU18RLQ represent a harmonious blend of innovation and efficiency. With their advanced inverter technology, energy-saving features, and smart connectivity, these air conditioning systems are well-suited for modern homes looking for reliable and effective climate control solutions. Whether for residential use or light commercial applications, these models cater to a broad spectrum of comfort needs, ensuring a pleasant indoor environment year-round.