Air conditioner AC-7.9 MS + AC166i.3-3.5 W / AC166i.3-3.5 W

Buderus Logacool AC166i.3 Air Conditioner – Efficient multi-split set for cooling, heating, and dehumidifying

2x wall unit AC166i.3-3.5 with 3.5 kW and outdoor unit AC-7.9 MS with 7.9 kW for two rooms up to approx. 40 m² each.

The Buderus Logacool AC166i.3 air conditioning set is the ideal solution for anyone who values ​​maximum climate comfort in both new and existing buildings. Whether in apartments, single-family homes, multi-family buildings, or commercial properties – the set impresses with its versatile applications. With its modern technology, it combines efficient cooling, heating, and dehumidification in an elegant, quiet, and space-saving design.

Details of the Logacool AC166i.3 wall unit

• 3-in-1: Cooling, heating and dehumidifying
• Energy efficiency class A++ (cooling) and A+ (heating)
• Clean air thanks to i-Clean, HD and cold catalytic filters
• extra quiet silent mode for quiet operation
• Frost protection function (+8 °C) against frost damage
• Reliable at outdoor temperatures from -15 °C to +50 °C
• environmentally friendly refrigerant R32
• smart timer and night mode for added comfort
• elegant, space-saving design
• Ideal for private and commercial use (e.g., practices, offices, studios)

Details of the Logacool AC MS outdoor unit

• Multi-split function for 2 to 5 rooms  
• flexible combination of indoor units  
• Cooling, heating and dehumidifying possible  
• suitable for larger rooms 
• modern Buderus design
• efficient and energy-saving

With the Buderus Logacool AC166i.3 wall-mounted unit, you’re choosing maximum climate comfort, healthy indoor air, and sustainable efficiency – all year round, whether summer or winter.
A particular highlight of the Logacool AC166i.3 is its  high energy efficiency . In cooling mode, the unit achieves the outstanding ErP energy efficiency class A++, and in heating mode, class A+. Even in standby mode, the air conditioner is characterized by very low energy consumption. Thanks to the integrated timer function, automatic switching on and off can be individually programmed , which not only increases comfort but also actively helps save energy costs.
The remote control allows you to conveniently adjust the room temperature and switch between cooling and heating functions.
In addition to efficient air conditioning, Buderus places great emphasis on indoor air quality. The Logacool AC166i.3 is equipped with innovative filter technology that ensures clean and healthy air . The self-cleaning i-Clean function reliably removes dirt, dust, mold, and up to 99 percent of bacteria from the indoor unit. In addition, the cold catalytic filter neutralizes unpleasant odors and harmful substances , while the integrated high-density filter ensures exceptionally dust-free indoor air . Furthermore, the unit features a dehumidification function that reduces humidity during cooling operation, creating a pleasant and healthy indoor climate.
Designed for year-round use , this air conditioner reliably cools and dehumidifies at outdoor temperatures up to +50°C and provides comfortable warmth even at temperatures as low as -15°C. Thanks to the integrated frost protection function , which maintains a constant room temperature of +8°C, frost damage, for example in vacation homes, can be effectively prevented.
The Logacool AC166i.3 also offers special features for nighttime use. The extra-quiet silent mode ensures that the unit is barely audible and  won’t disturb a restful sleep . The air conditioner also features an intelligent night mode: during the first two hours of cooling, the temperature is raised by one degree per hour to prevent the room from cooling down too much overnight . When heating, the temperature is automatically reduced by one degree per hour to ensure a comfortable sleeping temperature.
Another environmentally friendly feature of the Buderus Logacool AC166i.3 is the use of the modern refrigerant R32, which is not only efficient but also resource-conserving.As a sustainable air-to-air heat pump, this air conditioner offers varying heating outputs, ensuring comfortable warmth even on cold days while simultaneously reducing CO₂ emissions.
Thanks to its versatility, the Logacool AC166i.3 is the perfect solution for both residential and commercial applications. Whether in medical practices, offices, gyms, or retail spaces, it effortlessly creates a comfortable indoor climate. The combination of high energy efficiency, state-of-the-art filter technology, user-friendly operation, and elegant design makes this wall-mounted unit a true all-rounder for any environment.

The Buderus Logacool AC MS outdoor unit can cool, heat, or dehumidify up to five rooms simultaneously – according to individual needs. The outdoor unit can be combined with two to five compatible indoor units, which can be identical or different. This creates a wide range of combinations that can be optimally adapted to any living situation. Whether living room, bedroom, office, or guest room: each area gets its own perfect indoor climate .
The system impresses not only with its energy efficiency and performance but also with the elegant Buderus design, which blends harmoniously into any environment. Thanks to the various capacities of the outdoor unit, the Logacool AC MS is also ideally suited for larger rooms.

The set is also available with a quick-connect system for fast connection.

The technology of the Logacool AC166i.3 air conditioning set explained in a nutshell.

i-Clean function:
The i-Clean function automatically cleans the indoor unit and removes bacteria, dirt, and mold. This keeps the air in the room permanently fresh and hygienic.

HD filter (high-density filter):
The HD filter traps particularly fine dust particles from the air. This ensures noticeably cleaner and dust-free indoor air.

Cold catalytic filter:
This filter removes unpleasant odors and harmful substances from the air by breaking down and neutralizing pollutants – ideal for a healthy indoor climate.

Silent Mode:
In silent mode, the air conditioner operates particularly quietly. This allows it to be used at night or in quiet rooms without causing a disturbance.

Frost protection function (+8 °C):
The frost protection function keeps the room at a constant minimum of 8 °C. This prevents water pipes or furniture in empty rooms from being damaged by the cold.

Dehumidification function:
In cooling mode, the unit removes excess moisture from the air. This ensures a pleasant indoor climate and prevents mold growth.

Timer function:
The timer function automatically switches the air conditioner on or off at desired times. This saves energy and ensures you always enjoy the perfect temperature.

Refrigerant R32:
The environmentally friendly refrigerant R32 is efficient and has a lower global warming potential than conventional refrigerants. This allows you to actively contribute to climate protection.

Included in the standard delivery:

• BUDERUS Logacool AC-7.9 MS multisplit outdoor unit with 7.9 kW
• 2x BUDERUS wall-mounted unit Logacool AC166i.3-3.5 with 3.5 kW
• 2x remote control

Optionally selectable:

• Cable package
• Condensate drainage
• Outdoor unit installation

This is what Buderus stands for – combining system expertise and future viability for you

• It impresses with perfectly coordinated components
• solid, modular and networked system solutions
• offers solutions tailored to your individual needs