Air Conditioner with WiFi 4x1 Daikin Perfera 4MXM80A 2.5 kW (3) + 4.2 kW

The Daikin Perfera 4x1 multisplit air conditioner with WiFi 2.5 + 2.5 + 2.5 + 4.2 kW is a climate control solution designed to provide cooling and heating in four rooms through a single outdoor unit. This set combines three Daikin Perfera FTXM25B indoor units of 2.5 kW, one FTXM42B indoor unit of 4.2 kW, and one Daikin 4MXM80A8 outdoor unit with a nominal cooling capacity of 8.0 kW.

Thanks to Inverter technology, the heat pump with R-32 refrigerant, and integrated WiFi connectivity, the system lets you enjoy a comfortable temperature all year round. Each indoor unit has independent control to adjust the temperature, fan speed, and schedules according to the needs of each room.

The Daikin Perfera range stands out for its quiet operation, Flash Streamer air purification technology, intelligent motion sensor, and even air distribution. It is a suitable option for homes with several bedrooms, living rooms, studies, and offices that need to condition four spaces without installing four separate outdoor units.

Composition of the Daikin Perfera 4x1 air conditioner

This multisplit set is made up of the following equipment:

• 3 Daikin Perfera FTXM25B indoor units: wall-mounted units with a 2.5 kW cooling class each, equivalent to approximately 8,530 BTU/h per unit, commercially 9000 BTU. They feature integrated WiFi, quiet operation, and advanced air treatment technologies.
• 1 Daikin Perfera FTXM42B indoor unit: wall-mounted unit with a 4.2 kW cooling class, equivalent to approximately 14,330 BTU/h, commercially 14000 BTU. Recommended for rooms with higher climate control needs.
• 1 Daikin 4MXM80A8 outdoor unit: four-connection multisplit unit with Inverter technology, R-32 refrigerant, and a nominal capacity of 8.0 kW in cooling and 9.6 kW in heating.
• 4 Daikin ARC466A93 wireless remote controls: one for each indoor unit, allowing independent climate control management.
• Integrated WiFi control: the four indoor units can be managed from mobile devices via the Daikin Onecta app.

This configuration allows up to four rooms to be conditioned with a single outdoor unit, reducing the space occupied on facades, terraces, and balconies and enabling a more discreet installation.

Main advantages of the Daikin Perfera 4x1 air conditioner

Independent control of four rooms

The Daikin Perfera multisplit system allows each indoor unit to be used independently, adjusting the temperature and ventilation of each room according to the preferences of its occupants.

For example, it is possible to maintain different temperatures in three bedrooms and the living room, adapt operating schedules, or turn off the units in rooms that are not being used.

The four units can operate simultaneously, although they must work in the same overall cooling or heating mode. It is not possible for one unit to cool while another heats.

WiFi control via the Daikin Onecta app

The Daikin Perfera FTXM25B and FTXM42B indoor units include WiFi connectivity so you can manage climate control from a smartphone or tablet using the Daikin Onecta app.

Its features include:

• Individual on/off control of each indoor unit from anywhere with an Internet connection.
• Temperature adjustment for each room.
• Selection of cooling, heating, fan, and dehumidification modes.
• Adjustment of fan speed and air distribution.
• Schedule and timer programming.
• Control of compatible functions through voice assistants such as Amazon Alexa and Google Assistant.

Integrated connectivity makes it easy to manage comfort throughout the home from a single app and adapt operation to the occupants’ schedules.

Flash Streamer technology to improve air quality

The Daikin Perfera range incorporates Flash Streamer technology, designed to help reduce certain allergens, pollutants, and odors present in the air.

The system is complemented by different filtration elements:

• Silver particle filter: helps capture certain allergens, such as pollen.
• Titanium apatite deodorizing filter: helps reduce unpleasant odors.
• Air filter: traps dust particles present in the air circulating through the indoor unit.

These technologies promote better indoor air quality and provide greater comfort in the conditioned rooms.

Two-zone intelligent motion sensor

The indoor units feature a two-zone motion sensor that detects people’s presence and adjusts the direction of the airflow to avoid direct drafts on occupants.

When no presence is detected for a certain period, the unit can activate energy-saving operation, reducing consumption without the need to manually switch off the air conditioner.

Even air distribution with Comfort+ and 3D airflow

The Comfort+ system uses dual flaps to promote a homogeneous air distribution, while the 3D airflow combines automatic vertical and horizontal movement to reach different areas of the room.

These functions help improve comfort and reduce temperature differences within each room.

Quiet operation for bedrooms and rest areas

The Daikin Perfera indoor units are designed to operate with low sound levels, especially suitable for bedrooms and rooms where quiet is desired.

• FTXM25B 2.5 kW: minimum sound pressure of 19 dB(A) in cooling and 20 dB(A) in heating.
• FTXM42B 4.2 kW: minimum sound pressure of 21 dB(A) in both cooling and heating.

They also include silent mode, Powerful mode for quickly reaching the desired temperature, Econo mode to limit electricity consumption, and weekly programming.

Cooling and heating capacity of the set

The Daikin Perfera combination is made up of three 2.5 kW class indoor units and one 4.2 kW class unit. Although the sum of the individual capacities is 11.7 kW, the total nominal cooling capacity of the system is 8.0 kW, determined by the 4MXM80A8 outdoor unit.

The available capacity is distributed among the indoor units depending on which ones are operating, the thermal demand of each room, and the environmental conditions.

Cooling capacity of the system

According to Daikin’s official tables for the 4MXM80A8 outdoor unit and the 2.5 + 2.5 + 2.5 + 4.2 kW combination, the reference values are:

• Minimum cooling capacity: 2.89 kW.
• Nominal cooling capacity: 8.0 kW, approximately 27,300 BTU/h.
• Maximum cooling capacity: 9.55 kW.
• Nominal electrical consumption in cooling: 2.00 kW.
• Nominal EER: 4.00.

When all four indoor units operate simultaneously under nominal conditions, the cooling capacity distribution is:

• First FTXM25B: 1.71 kW.
• Second FTXM25B: 1.71 kW.
• Third FTXM25B: 1.71 kW.
• FTXM42B: 2.87 kW.

When fewer indoor units are operating, the available capacity can be redistributed according to the system’s operating conditions.

Heating capacity of the system

The reversible heat pump also allows the unit to be used for heating, with the following reference performance:

• Minimum heating capacity: 3.87 kW.
• Nominal heating capacity: 9.6 kW, approximately 32,760 BTU/h.
• Maximum heating capacity: 11.16 kW.
• Nominal electrical consumption in heating: 2.09 kW.
• Nominal COP: approximately 4.59.

The nominal heating distribution when all four indoor units are operating is:

• First FTXM25B: 2.05 kW.
• Second FTXM25B: 2.05 kW.
• Third FTXM25B: 2.05 kW.
• FTXM42B: 3.45 kW.

These capacities correspond to Daikin’s published technical combination tables by power class. Actual results may vary depending on outdoor temperature, indoor conditions, and simultaneous use.

Energy efficiency of the Daikin Perfera 4x1 air conditioner

Daikin’s Inverter technology regulates compressor operation according to climate control demand, avoiding unnecessary starts and stops and promoting efficient electricity consumption.

For the 2.5 + 2.5 + 2.5 + 4.2 kW combination with the 4MXM80A8 outdoor unit, Daikin’s reference tables publish the following efficiency indicators:

• Reference energy class in cooling: A++.
• Reference energy class in heating for average climate: A++.
• Reference SEER: 7.76.
• Reference SCOP in average climate: 4.68.
• Refrigerant: R-32.

SEER and SCOP are seasonal efficiency indicators that make it possible to compare the energy performance of climate control systems. A higher value indicates a greater amount of thermal energy delivered per unit of electrical energy consumed under standardized calculation conditions.

Note on energy classification: the values indicated come from Daikin’s power-class combination tables for the 4MXM80A8 outdoor unit. The specific energy label of the FTXM-B generation indoor units should be confirmed with the manufacturer before attributing these values as the definitive certification of the marketed set.

Technical features of the Daikin FTXM25B 2.5 kW indoor units

The set includes three Daikin Perfera FTXM25B indoor units, designed to condition rooms and spaces with moderate thermal needs, with quiet operation and WiFi connectivity.

The following features apply to each of the three units:

• Brand: Daikin.
• Series: Perfera.
• Reference: FTXM25B.
• Quantity: 3 units.
• Type: wall-mounted indoor unit.
• Color: white.
• Cooling capacity class: 2.5 kW.
• Cooling equivalent: approximately 8,530 BTU/h, commercially 9000 BTU.
• Dimensions (H × W × D): 298 × 804 × 252 mm.
• Weight per unit: 11.5 kg.
• Airflow in cooling (high/medium/low/quiet): 11.9 / 8.9 / 6.3 / 4.9 m³/min.
• Sound pressure in cooling (high/medium/low/quiet): 41 / 33 / 25 / 19 dB(A).
• Sound pressure in heating (high/medium/low/quiet): 39 / 34 / 27 / 20 dB(A).
• Sound power in cooling: 54 dB(A).
• Liquid refrigerant connection: 1/4" (6.4 mm).
• Gas refrigerant connection: 3/8" (9.5 mm).
• Drain connection: 16 mm.
• Wireless remote control: ARC466A93.
• Connectivity: integrated WiFi with Daikin Onecta app.
• Comfort technologies: Comfort+, two-zone motion sensor, and 3D airflow.
• Air treatment: Flash Streamer, silver particle filter, and titanium apatite deodorizing filter.
• Additional functions: Powerful mode, Econo mode, quiet operation, dehumidification, and weekly programming.

Technical features of the Daikin FTXM42B 4.2 kW indoor unit

The Daikin Perfera FTXM42B indoor unit has a 4.2 kW cooling capacity class, making it especially suitable for living rooms, dining rooms, offices, and larger rooms or spaces with higher thermal needs.

• Brand: Daikin.
• Series: Perfera.
• Reference: FTXM42B.
• Quantity: 1 unit.
• Type: wall-mounted indoor unit.
• Color: white.
• Cooling capacity class: 4.2 kW.
• Cooling equivalent: approximately 14,330 BTU/h, commercially 14000 BTU.
• Dimensions (H × W × D): 298 × 804 × 252 mm.
• Weight: 11.5 kg.
• Airflow in cooling (high/medium/low/quiet): 13.3 / 9.8 / 7.2 / 5.0 m³/min.
• Sound pressure in cooling (high/medium/low/quiet): 45 / 38 / 30 / 21 dB(A).
• Sound pressure in heating (high/medium/low/quiet): 45 / 37 / 29 / 21 dB(A).
• Sound power in cooling: 60 dB(A).
• Liquid refrigerant connection: 1/4" (6.4 mm).
• Gas refrigerant connection: 3/8" (9.5 mm).
• Drain connection: 16 mm.
• Wireless remote control: ARC466A93.
• Connectivity: integrated WiFi with Daikin Onecta app.
• Comfort technologies: Comfort+, two-zone motion sensor, and 3D airflow.
• Air treatment: Flash Streamer, silver particle filter, and titanium apatite deodorizing filter.
• Additional functions: Powerful mode, Econo mode, quiet operation, dehumidification, and weekly programming.

Technical features of the Daikin 4MXM80A8 outdoor unit

The Daikin 4MXM80A8 outdoor unit is a multisplit heat pump with Inverter technology, designed to connect up to four compatible indoor units through independent refrigerant circuits.

Its hermetically sealed Swing compressor adapts operation to the thermal demand of the rooms, helping maintain stable temperatures and optimize electricity consumption.

• Brand: Daikin.
• Reference: 4MXM80A8.
• Type: 4x1 multisplit outdoor unit.
• Number of connections for indoor units: 4.
• Nominal cooling capacity: 8.0 kW.
• Nominal heating capacity: 9.6 kW.
• Technology: Inverter.
• Compressor: hermetically sealed Swing.
• Refrigerant: R-32.
• Factory refrigerant charge: 2.40 kg.
• Global warming potential (GWP): 675.
• CO₂ equivalent of the factory charge: 1.62 tons.
• Dimensions (H × W × D): 734 × 974 × 408 mm.
• Weight: 67 kg.
• Nominal sound pressure in cooling: 48 dB(A).
• Nominal sound pressure in heating: 49 dB(A).
• Power supply: single-phase, 220-240 V, 50 Hz.
• Reference current for electrical sizing: 20.4 A.
• Recommended magnetothermal protection in the manual: 25 A, subject to regulations and installation calculations.
• Outdoor operating temperature in cooling: from -10 °C to +50 °C.
• Maximum pipe length per indoor unit: 25 meters.
• Maximum total refrigerant piping length: 70 meters.

Refrigerant connections of the Daikin Perfera 4x1

The Daikin Perfera 4x1 multisplit air conditioner has four refrigerant circuits that connect each indoor unit to the 4MXM80A8 outdoor unit.

Connection diameters of the indoor units

The four indoor units have the following connection diameters:

• First FTXM25B: 1/4" liquid (6.4 mm) and 3/8" gas (9.5 mm).
• Second FTXM25B: 1/4" liquid (6.4 mm) and 3/8" gas (9.5 mm).
• Third FTXM25B: 1/4" liquid (6.4 mm) and 3/8" gas (9.5 mm).
• FTXM42B: 1/4" liquid (6.4 mm) and 3/8" gas (9.5 mm).

Connection diameters of the outdoor unit

The Daikin 4MXM80A8 outdoor unit includes four 1/4" liquid connections, but its gas connections have different diameters:

• Port A: 3/8" gas connection (9.5 mm).
• Port B: 1/2" gas connection (12.7 mm).
• Port C: 5/8" gas connection (15.9 mm).
• Port D: 5/8" gas connection (15.9 mm).
• Liquid connections: four 1/4" ports (6.4 mm).

Important about the connections: the indoor units in this set have 3/8" gas connections, while three of the four outdoor ports have larger diameters. Therefore, it is necessary to check the assignment of each indoor unit to its outdoor port and the corresponding refrigerant reducers according to Daikin’s instructions.

The outdoor unit documentation includes a reducer set among its standard accessories, but the installer must confirm the compatibility and availability of all necessary adapters for the specific supplied references.

Maximum pipe length and permitted height differences

To ensure proper system operation, the installation must respect Daikin’s maximum established distances.

• Maximum pipe length per indoor unit: 25 meters.
• Maximum total refrigerant piping length: 70 meters, adding the four runs together.
• Minimum pipe length per indoor unit: 3 meters.
• Maximum height difference between outdoor and indoor units when the outdoor unit is installed higher: 15 meters.
• Maximum height difference between indoor units with the outdoor unit installed higher: 7.5 meters.
• Maximum height difference between outdoor and indoor units when the outdoor unit is installed lower: 7.5 meters.
• Maximum height difference between indoor units with the outdoor unit installed lower: 15 meters.
• Total length covered by the factory refrigerant charge: 30 meters of liquid piping.
• Additional refrigerant charge: 20 grams per additional meter when the sum of the four runs exceeds 30 meters, applying the manufacturer’s calculation and rounding criteria.
• Maximum permitted total refrigerant charge: 3.2 kg.

For example, an installation can be designed with four refrigerant runs of 10, 15, 15, and 20 meters, resulting in a total length of 60 meters. This distribution respects the maximum lengths, although the height differences and other technical conditions must also be verified.

When exceeding the 30 meters covered by the factory charge, it will be necessary to calculate and add R-32 refrigerant following the procedure established in the official technical manual.

What type of homes is this 4x1 air conditioner recommended for?

The Daikin Perfera 4x1 multisplit 2.5 + 2.5 + 2.5 + 4.2 kW is especially interesting for homes and spaces that need to condition four rooms independently.

A common layout may consist of installing the three 2.5 kW FTXM25B units in bedrooms or studies and the 4.2 kW FTXM42B unit in the living room or dining room.

However, the area each unit can condition will depend on the property’s insulation, orientation, ceiling height, windows, and thermal loads. In addition, when all units operate simultaneously, the available capacity is shared among the four rooms.

For correct sizing, it is advisable for a professional to calculate the cooling and heating needs of each room and verify that the set’s capacities suit the intended use.

Installation and required materials

The Daikin Perfera 4x1 system consists of three FTXM25B indoor units, one FTXM42B indoor unit, and one 4MXM80A8 outdoor unit, along with their respective remote controls and the standard accessories supplied by the manufacturer.

Installation materials are not included in the set. Depending on the characteristics of the home or premises, copper refrigerant piping, insulation, electrical and interconnection wiring, trunking, condensate drainage piping, outdoor unit supports, and fastening elements will be required.

It will also be necessary to check the corresponding refrigerant reducers for the different gas ports of the outdoor unit and verify the compatibility of the indoor references with the connection scheme established by the manufacturer.

Installation must be carried out by qualified professionals certified to install climate control equipment with fluorinated gases, in compliance with current regulations and Daikin’s technical instructions.

With its ability to condition four rooms, independent WiFi control, quiet operation, and advanced air treatment technologies, the Daikin Perfera multisplit 4x1 FTXM25B + FTXM25B + FTXM25B + FTXM42B + 4MXM80A8 air conditioner offers a versatile climate control solution for enjoying cooling and heating all year round.