AIRSTAGE SINGLE-ROOM MINI-SPLIT SYSTEMS Floor Mounted RLFF Series Floor Mounted / RLFF (-5°F Heating)

Indoor Unit Systems: AGU9RLS3, AGU12RLS3, AGU15RLS3


RLFF Series
Cooling9,000 BTU/h
Heating12,000 BTU/h
Cooling12,000 BTU/h
Heating16,000 BTU/h
Cooling14,200 BTU/h
Heating18,000 BTU/h


Floor mount systems are ideal for residential radiator replacements or any room with limited upper wall space, like a kitchen or sunroom.

Available in 9, 12 or 15,000 BTU, these systems are extremely energy efficient and reach ENERGY STAR®’s Most Efficient status.

Single zone floor mount heat pumps feature twin airflow for improved heat delivery and come standard with a designer remote control.

Compact Size

At less than 24” high and 30” wide, floor mount models fit easily under a standard window and can replace a radiator twice its size while producing more capacity.

Energy Efficient

All systems feature high efficiencies and are ENERGY STAR® Qualified, meaning lower utility bills for home and business owners.

2-Fan and Wide Airflow

Having both upper and lower airflow quickly warms or cools the entire room. Floor mount can be set in “Upward Airflow Only” when occupants wish not to have feet warmed or cooled.

High Performance Heating

Heating capacity at low outdoor temperatures is achieved by adopting a large heat exchanger and a high capacity compressor. Systems operate down to -5°F.

Flexible and Easy Installation

Beneath standard window

Standard concave portion


Half concealed*

Field supplied insulation required

Other Standard Features Include:

Wireless Remote Control
Sleep Timer: Automatically adjusts the temperature while you sleep to make you more comfortable.
Sleep Timer
Auto Louver: Up/Down: Redirects airflow automatically with seven position up and down motion which can be set to auto swing.
Auto Louver
Automatic air flow adjustment: The micro-computer automatically adjusts the air flow effectively to follow the changes of room temperature.
Auto Mode
24 Hour Timer: Allows for one on/off cycle during a 24 hour period.
24-Hour Timer
Economy Mode: Thermostat setting automatically changes according to the temperature to avoid unnecessary cooling and heating.
Economy Mode
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*
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
Apple Catechin Filter (polyphenol ingredient from apples): Dust, mold spores and microorganisms are absorbed onto the filter by static electricity and growth is inhibited and deactivated. 3 - 12 month life expectancy, depending on environment.
Apple Catechin Filter
Ion Deodorizing Filter: Deodorizes by decomposing absorbed odors using the oxidizing and reducing effects of ions generated by fine ceramic particles. 3 year life expectancy. Wash to restore surface action.
Ion Deodorizing Filter
Minimum Heat Mode: Sets room temperature to 50°F, keeping temperatures above freezing and reducing power consumption.
Minimum Heat (50°F/10°C)
Powerful Operation: 20 minutes of continuous operation at maximum airflow and maximum compressor speed. Rapid cooling and heating makes the room comfortable quickly.
Powerful Operation Mode

*Auto Changeover (Heating to Cooling or Vice Versa):
automatically alternates between heating or cooling if the room temperature falls 4°F below the set temperature when cooling or rises 4°F above set temperature when heating. Auto changeover is not designed to provide rapid changes between heating and cooling operation or simultaneous heating and cooling.
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