Indoor Unit Systems: 18RULX, 24RULX


Cooling17,800 BTU/h
Heating21,500 BTU/h
Cooling22,200 BTU/h
Heating24,000 BTU/h


These models are universal mounted, meaning they can mount low on the floor or low on the wall, yet high enoughfor a vacuum to get under them. They can also be mounted on the ceiling. A popular application for this model is in hallways where wall space is limited.

Slim and lightweight in design, these systems are ideal for house of worship to mount beneath stained glass windows.

Lower in height that the pews they do not disturb the aesthetics of the space. With long piping lengths of 165' the outdoor units can also be placed remotely out of sight.

Universal comfort

An intelligent approach to comfort with a single unit that is equally at home standing upright as a floor unit or fitted horizontally to the ceiling without modification. Extremely quiet and energy efficient, they are ideal for residential or commercial situations.

Inverter Technology

Through new, advanced technology, Inverter air conditioners are more economical to operate and quieter to run than conventional units. They can handle greater extremes in temperature, are smoother and more stable in operation, and reach the desired temperature more quickly than conventional air conditioners.

Wired Remote Controller UTY-RNBYU (Optional)

Features of the standard wired remote controller include:

  • Weekly timer
  • Set different on-off time by day
  • Set on-off time twice a day
  • Set time in 5 minute intervals
  • Child lock capable
  • Remote temperature sensor
  • Set different temperatures throughout the day.

4-Way Auto Louver for Balanced Comfort

Airflow is automatically redirected left, right, up and down to provide a consistent temperature throughout a room, whether at floor or ceiling height.

Smart System: Auto Mode

When the system is initially turned on, the fan speed is HIGH to reach the set temperature as quickly as possible. The fan speed will automatically adjust downward as the room begins to reach the set temperature.

Humidity Control

The universal system features Dry Mode, which helps to control humidity levels, even when cooling may not be needed.

Fresh Air Intake

Outside air can be introduced by attaching field supplied flexible duct to fresh air knockouts. Fresh air connection kit is Fujitsu part #KHRS940-25. (available through distributors)

Other Standard Features Include:

Sleep Timer: Automatically adjusts the temperature while you sleep to make you more comfortable.
Sleep Timer
24 Hour Timer: Allows for one on/off cycle during a 24 hour period.
24-Hour Timer
Auto Restart/Reset: Following a power failure, systems will automatically restart in the same operating mode as before, once power has been restored.
Auto Restart/Reset
Auto restart: In the event of a temporary power failure, the air conditioner will automatically restart in the same operating mode as before, once the power supply is restored.
Auto Changeover
High Ceiling Mode: Temperature at the top of a high ceiling room may be warmer than the space occupied; this mode adjusts for this difference.
High Ceiling Mode
Cold Prevention: Indoor coil will warm prior to fan operating, preventing cold air during heating mode.
Cold Prevention
Low Ambient Cooling: Can operate in cooling mode even when outdoor ambient is 0°F, 14°F or 32°F, depending on model, without modification. Operation outside of factory specification is not recommended.
Low Ambient
Welcome to the Fujitsu General Resource Center.
This area is loaded with valuable information such as rebates, case studies,
videos, news, press releases, an efficiency calculator and an easy way to locate your local Fujitsu General contractor.