Daikin Perfera 3x1 Air Conditioner with WiFi 2.5 kW (2) + 3.5 kW

The Daikin Perfera 3x1 multisplit air conditioner with WiFi, 2.5 + 2.5 + 3.5 kW is a climate control solution designed to provide cooling and heating in three rooms using a single outdoor unit. This set combines two Daikin Perfera FTXM25B indoor units of 2.5 kW, one FTXM35B indoor unit of 3.5 kW, and one Daikin 3MXM68A8 outdoor unit with a nominal cooling capacity of 6.8 kW.

Thanks to its Inverter technology, heat pump with R-32 refrigerant, and WiFi connectivity, it allows you to enjoy a comfortable temperature all year round. Each indoor unit has independent temperature control, fan speed adjustment, and scheduling, adapting to the needs of each room.

The Daikin Perfera range stands out for incorporating advanced air treatment technologies, such as Flash Streamer, a two-zone intelligent motion sensor, and a 3D airflow distribution system. Its quiet operation and energy-saving functions make this system a particularly attractive option for homes, apartments, bedrooms, living rooms, studies, and offices.

Composition of the Daikin Perfera 3x1 air conditioner

This multisplit set is made up of the following equipment:

• 2 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 WiFi, quiet operation, intelligent presence sensor, and Flash Streamer technology.
• 1 Daikin Perfera FTXM35B indoor unit: wall-mounted unit with a 3.5 kW cooling class, equivalent to approximately 11,940 BTU/h, commercially 12000 BTU. Recommended for living rooms, dining rooms, large bedrooms, and other rooms with higher thermal requirements.
• 1 Daikin 3MXM68A8 outdoor unit: Inverter multisplit unit with three independent refrigerant connections, R-32 refrigerant, and a nominal capacity of 6.8 kW in cooling and 8.6 kW in heating.
• 3 Daikin ARC466A93 wireless remote controls: one for each indoor unit, to individually control temperature and the main climate control functions.

The 3x1 multisplit configuration allows you to condition three spaces using a single outdoor unit, reducing the space required on facades, terraces, and balconies compared with installing three separate air conditioning systems.

Main advantages of the Daikin Perfera 3x1 air conditioner

Independent climate control for three rooms

The Daikin Perfera multisplit system allows the three indoor units to be regulated separately, adjusting temperature, fan speed, and operating schedules according to the needs of each room.

For example, the two 2.5 kW FTXM25B units can be installed in bedrooms or studies, while the 3.5 kW FTXM35B unit is intended for the living room, dining room, or a larger bedroom.

The three units can operate simultaneously, although they must work in the same general cooling or heating mode. It is not possible to cool one room while heating another.

Smart WiFi control via Daikin Onecta

The Daikin Perfera FTXM25B and FTXM35B indoor units feature WiFi connectivity so you can manage climate control from a smartphone or tablet using the Daikin Onecta app.

The app allows you to control each indoor unit individually from anywhere with an Internet connection.

Its main functions include:

• Individual on/off control of each indoor unit.
• Independent temperature adjustment for each room.
• Selection of cooling, heating, fan, and dehumidification modes.
• Fan speed adjustment.
• Schedule settings and weekly programming.
• Control of the main functions through compatible voice assistants such as Amazon Alexa and Google Assistant.

WiFi control makes it easier to adapt the unit’s operation to the occupants’ daily routines and avoid unnecessary energy use in rooms that are not being used.

Flash Streamer technology to improve air quality

The Daikin Perfera indoor units incorporate Flash Streamer technology, designed to help reduce certain allergens and odors present in indoor air.

This technology is complemented by different filtration elements:

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

The combination of these technologies helps improve indoor air quality and provides a more comfortable environment in the conditioned rooms.

Two-zone intelligent motion sensor

The indoor units include a two-zone intelligent presence sensor that detects where people are in the room and adjusts the airflow direction to reduce direct drafts on occupants.

When no presence is detected for a certain period, the system can automatically activate energy-saving operation, helping reduce electricity consumption.

Even air distribution with Comfort+ and 3D airflow

Daikin’s Comfort+ technology uses dual flaps to improve air distribution in the room and promote a more even temperature.

In addition, 3D airflow combines automatic vertical and horizontal movement to distribute cool or warm air across different areas of the room.

These functions help reduce temperature differences within the room and provide greater thermal comfort during operation.

Ultra-quiet operation at only 19 dB(A)

One of the most notable features of the Daikin Perfera range is its quiet operation. Both the FTXM25B and FTXM35B indoor units achieve a minimum sound pressure of 19 dB(A) in quiet cooling mode.

In heating mode, the three units can operate with a minimum sound pressure of 20 dB(A).

These noise levels make them suitable for bedrooms, children’s rooms, studies, and other spaces where discreet climate control is desired.

Comfort and energy-saving functions

The Daikin Perfera indoor units include different modes to adapt operation to each moment’s needs:

• Powerful mode: temporarily increases output to reach the selected temperature more quickly.
• Econo mode: limits the unit’s maximum electrical consumption.
• Quiet mode: reduces fan speed to minimize operating noise.
• Night mode: adapts operation during rest hours.
• Dehumidification: helps reduce indoor humidity.
• Fan mode: allows air circulation without activating cooling or heating.
• Weekly programming: makes it easy to set personalized operating schedules.
• Auto restart: restores settings after a power outage.
• Temperature limitation: allows setting regulation limits to avoid excessively high or low temperatures.

Cooling and heating capacity of the Daikin Perfera 3x1 set

The system combines two 2.5 kW class indoor units and one 3.5 kW class unit, with a total of 8.5 kW of individual capacities. However, the combined nominal cooling capacity when all three indoor units operate simultaneously is 6.8 kW, determined by the performance of the 3MXM68A8 outdoor unit.

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

Cooling capacity

According to Daikin’s official technical tables for the 3MXM68A8 outdoor unit and the 2.5 + 2.5 + 3.5 kW combination, the nominal reference values are:

• Minimum cooling capacity: 1.96 kW.
• Nominal cooling capacity: 6.8 kW, approximately 23,200 BTU/h.
• Maximum cooling capacity: 7.94 kW.
• Minimum electrical consumption in cooling: 0.36 kW.
• Nominal electrical consumption in cooling: 1.72 kW.
• Maximum reference electrical consumption in cooling: 2.45 kW.
• Calculated nominal EER: approximately 3.95.

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

• First FTXM25B 2.5 kW unit: 2.00 kW.
• Second FTXM25B 2.5 kW unit: 2.00 kW.
• FTXM35B 3.5 kW unit: 2.80 kW.

When only one or two indoor units are operating, the available power can be redistributed among the rooms requiring climate control, within the system’s operating limits.

Heating capacity

The reversible heat pump allows the system to be used during the colder months, with a combined nominal heating capacity of 8.6 kW.

• Minimum heating capacity: 2.50 kW.
• Nominal heating capacity: 8.6 kW, approximately 29,340 BTU/h.
• Maximum heating capacity: 10.87 kW.
• Minimum electrical consumption in heating: 0.48 kW.
• Nominal electrical consumption in heating: 1.99 kW.
• Maximum reference electrical consumption in heating: 2.72 kW.
• Calculated nominal COP: approximately 4.32.

The nominal heating capacity distribution when all three indoor units operate simultaneously is:

• First FTXM25B 2.5 kW unit: 2.53 kW.
• Second FTXM25B 2.5 kW unit: 2.53 kW.
• FTXM35B 3.5 kW unit: 3.54 kW.

These values come from Daikin’s official technical tables for the 25 + 25 + 35 combination with the 3MXM68A8 outdoor unit. Actual performance may vary depending on indoor and outdoor temperatures, installation conditions, and simultaneous operation.

Energy efficiency of the Daikin Perfera 3x1 air conditioner

The system uses Inverter technology to regulate compressor speed according to climate control needs, avoiding unnecessary starts and stops and promoting efficient electricity consumption.

As a commercial reference, the equivalent Daikin Perfera combination with FTXM-A generation indoor units and a 3MXM68 class outdoor unit presents an A++ energy rating in cooling and A+ in heating, according to documentation published by specialized distributors.

Its main energy features include:

• Reference energy class in cooling: A++.
• Reference energy class in heating: A+.
• Reference SEER of the equivalent FTXM-A combination: approximately 7.57.
• Reference SCOP of the equivalent FTXM-A combination: approximately 4.24.
• Nominal cooling capacity of the 25 + 25 + 35 combination: 6.8 kW.
• Nominal heating capacity: 8.6 kW.
• Nominal electrical consumption in cooling: 1.72 kW.
• Nominal electrical consumption in heating: 1.99 kW.
• Technology: Inverter with Swing compressor.
• Refrigerant: R-32.
• Independent control: allows you to condition only the rooms that need it.
• Econo mode: limits the unit’s maximum electrical consumption.

SEER and SCOP indicators express the seasonal energy performance of climate control equipment. The higher the value, the greater the amount of thermal energy supplied per unit of electrical energy consumed under standardized calculation conditions.

Important about energy efficiency: the SEER, SCOP, and energy class values above correspond to a commercial reference of the equivalent FTXM-A generation combination. They do not constitute a certified energy label for the FTXM25B + FTXM25B + FTXM35B + 3MXM68A8 set. The final classification must be confirmed with Daikin for these exact references.

Technical specifications of the Daikin FTXM25B 2.5 kW indoor units

The set includes two Daikin Perfera FTXM25B indoor units, designed to provide efficient climate control in bedrooms, studies, and other small to medium-sized rooms.

The following characteristics apply to each of the two units:

• Brand: Daikin.
• Series: Perfera.
• Reference: FTXM25B.
• Quantity: 2 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.
• Nominal electrical consumption of each indoor unit in cooling: 0.019 kW.
• Nominal electrical consumption of each indoor unit in heating: 0.018 kW.
• Airflow in cooling (high/medium/low/quiet): 11.9 / 8.9 / 6.3 / 4.9 m³/min.
• Airflow in heating (high/medium/low/quiet): 11.4 / 9.2 / 6.9 / 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).
• Sound power in heating: 53 dB(A).
• Liquid refrigerant connection: 1/4" (6.4 mm).
• Gas refrigerant connection: 3/8" (9.5 mm).
• Condensate drain connection: 16 mm.
• Wireless remote control: ARC466A93.
• Connectivity: WiFi via Daikin Onecta.
• 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, fan, dehumidification, and weekly programming.

Technical specifications of the Daikin FTXM35B 3.5 kW indoor unit

The Daikin Perfera FTXM35B indoor unit has a 3.5 kW cooling capacity class, making it especially suitable for living rooms, dining rooms, large bedrooms, and other spaces with higher climate control needs.

• Brand: Daikin.
• Series: Perfera.
• Reference: FTXM35B.
• Quantity: 1 unit.
• Type: wall-mounted indoor unit.
• Color: white.
• Cooling capacity class: 3.5 kW.
• Cooling equivalent: approximately 11,940 BTU/h, commercially 12000 BTU.
• Dimensions (H × W × D): 298 × 804 × 252 mm.
• Weight: 11.5 kg.
• Nominal electrical consumption of the indoor unit in cooling: 0.029 kW.
• Nominal electrical consumption of the indoor unit in heating: 0.019 kW.
• Airflow in cooling (high/medium/low/quiet): 13.2 / 9.4 / 7.1 / 4.6 m³/min.
• Airflow in heating (high/medium/low/quiet): 11.1 / 9.4 / 6.9 / 5.1 m³/min.
• Sound pressure in cooling (high/medium/low/quiet): 45 / 37 / 29 / 19 dB(A).
• Sound pressure in heating (high/medium/low/quiet): 39 / 35 / 28 / 20 dB(A).
• Sound power in cooling: 58 dB(A).
• Sound power in heating: 53 dB(A).
• Liquid refrigerant connection: 1/4" (6.4 mm).
• Gas refrigerant connection: 3/8" (9.5 mm).
• Condensate drain connection: 16 mm.
• Wireless remote control: ARC466A93.
• Connectivity: WiFi via Daikin Onecta.
• 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, fan, dehumidification, and weekly programming.

Technical specifications of the Daikin 3MXM68A8 outdoor unit

The Daikin 3MXM68A8 outdoor unit is a multisplit heat pump with Inverter technology, designed to connect up to three compatible indoor units through independent refrigerant circuits.

It features a hermetically sealed Swing compressor that adapts its operation to the thermal demand of the rooms, providing cooling and heating using R-32 refrigerant.

• Brand: Daikin.
• Reference: 3MXM68A8.
• Type: 3x1 multisplit outdoor unit.
• Number of connections for indoor units: 3.
• Nominal cooling capacity of the set: 6.8 kW.
• Nominal heating capacity of the set: 8.6 kW.
• Total maximum capacity of connectable indoor classes: 11.0 kW.
• Sum of the indoor unit classes in this set: 8.5 kW.
• Technology: Inverter.
• Compressor: hermetically sealed Swing compressor.
• Refrigerant: R-32.
• Factory refrigerant charge: 2.00 kg.
• Global warming potential (GWP): 675.
• CO₂ equivalent of the factory charge: 1.35 tonnes.
• Dimensions (H × W × D): 734 × 974 × 408 mm.
• Weight: 62 kg.
• Nominal sound pressure in cooling: 48 dB(A).
• Nominal sound pressure in heating: 48 dB(A).
• Power supply: single-phase, 220-240 V, 50 Hz.
• Outdoor operating temperature in cooling: from -10 °C to +50 °C.
• Maximum piping length per indoor unit: 25 meters.
• Maximum total refrigerant piping length: 50 meters.
• Total length covered by the factory refrigerant charge: 30 meters.

The outdoor unit is designed to provide heating and cooling even under demanding outdoor temperatures. Available capacity and efficiency may vary in extreme temperature conditions, so sizing should consider Daikin’s published performance data for the installation climate.

Refrigerant connections of the Daikin Perfera 3x1

The Daikin Perfera 3x1 multisplit air conditioner has three independent refrigerant circuits connecting the two FTXM25B indoor units and the FTXM35B unit to the 3MXM68A8 outdoor unit.

Indoor unit connection diameters

All three indoor units have the same refrigerant connection diameters:

• First 2.5 kW FTXM25B: 1/4" liquid connection (6.4 mm) and 3/8" gas connection (9.5 mm).
• Second 2.5 kW FTXM25B: 1/4" liquid connection (6.4 mm) and 3/8" gas connection (9.5 mm).
• FTXM35B 3.5 kW: 1/4" liquid connection (6.4 mm) and 3/8" gas connection (9.5 mm).

Outdoor unit connection diameters

The Daikin 3MXM68A8 outdoor unit has three refrigerant ports with the following diameters:

• Port A: 1/4" liquid (6.4 mm) and 3/8" gas (9.5 mm).
• Port B: 1/4" liquid (6.4 mm) and 1/2" gas (12.7 mm).
• Port C: 1/4" liquid (6.4 mm) and 1/2" gas (12.7 mm).

Important about the connections: the three indoor units in this set have 3/8" gas connections, while ports B and C on the outdoor unit have a 1/2" diameter. For this reason, the corresponding 1/2" to 3/8" refrigerant reducers will be required to connect these two circuits correctly.

Daikin’s manual identifies reducers 2 and 4 to adapt the 1/2" gas connections to 3/8" piping.

The outdoor unit includes a reducer set among its standard accessories. The installer must verify that the necessary adapters are available and respect the correspondence between the refrigerant and electrical connections of each indoor unit.

Maximum piping length and permitted height differences

To ensure proper operation of the Daikin Perfera 3x1 system, the installation must respect the maximum refrigerant piping lengths and height differences established by Daikin.

• Maximum piping length per indoor unit: 25 meters.
• Maximum total refrigerant piping length: 50 meters, adding the three runs together.
• Minimum piping length per indoor unit: 3 meters.
• Maximum height difference between outdoor and indoor units when the outdoor unit is above: 15 meters.
• Maximum height difference between indoor units when the outdoor unit is above: 7.5 meters.
• Maximum height difference between outdoor and indoor units when the outdoor unit is below: 7.5 meters.
• Maximum height difference between indoor units when the outdoor unit is below: 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 total run exceeds 30 meters.
• Maximum permitted total refrigerant charge: 2.4 kg.

For example, an installation can be designed with refrigerant runs of 10, 15, and 20 meters, resulting in a total length of 45 meters. This layout respects the manufacturer’s established length limits, although the height differences and other technical conditions must also be checked.

When exceeding the 30 meters covered by the factory charge, it will be necessary to calculate and add the corresponding amount of R-32 refrigerant. For a total length of 45 meters, the calculation would be 300 additional grams, following Daikin’s established procedure.

Refrigerant length is calculated by taking the one-way liquid pipe run between the units as a reference, without adding the gas pipe of the same circuit again.

Insulation of refrigerant piping

Daikin establishes specific requirements for the thermal insulation of refrigerant piping in order to reduce energy losses and prevent condensation.

• 1/4" liquid piping: minimum insulation thickness of 10 mm.
• 3/8" gas piping: minimum insulation thickness of 13 mm.
• Material: polyethylene foam suitable for refrigeration installations, with thermal resistance of at least 120 °C.
• Refrigerant piping: seamless copper, phosphorus-deoxidized, and suitable for R-32 refrigerant.
• Minimum wall thickness for 1/4" and 3/8" piping: 0.8 mm, subject to applicable regulatory and pressure requirements.

When the ambient temperature exceeds 30 °C and relative humidity is above 80%, Daikin specifies a minimum insulation thickness of 20 mm to prevent surface condensation.

The installer must also check proper condensate drainage, electrical supply, and the necessary clearances around the outdoor unit.

What spaces is the 2.5 + 2.5 + 3.5 kW Daikin Perfera 3x1 recommended for?

The 2.5 + 2.5 + 3.5 kW Daikin Perfera 3x1 multisplit is especially suitable for homes and offices that need to condition three rooms with different thermal requirements.

A common layout may consist of installing the two 2.5 kW FTXM25B units in bedrooms, children’s rooms, or studies, while the 3.5 kW FTXM35B unit is used in a living room, dining room, or larger bedroom.

The area each unit can condition will depend on insulation, orientation, ceiling height, glazed surface, occupancy, and the building’s climate conditions.

It should also be noted that when all three indoor units operate simultaneously, the available capacity is distributed according to the system’s total capacity, 6.8 kW in cooling and 8.6 kW in heating.

To ensure proper sizing, it is recommended that a professional calculate the cooling and heating needs of each room before installation.

Installation and required materials

The Daikin Perfera 3x1 set consists of two FTXM25B indoor units, one FTXM35B indoor unit, and one 3MXM68A8 outdoor unit, together with their corresponding remote controls and the standard accessories supplied by the manufacturer.

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

It will also be necessary to check the availability of refrigerant reducers to adapt the gas connections of ports B and C, as well as verify the correspondence between the refrigerant and electrical connections of each indoor unit.

The installation must respect the maximum piping lengths, height differences, refrigerant connections, and electrical supply conditions established by Daikin.

The installation must be carried out by qualified professionals certified to work with climate control equipment using fluorinated gases, in compliance with current regulations and the manufacturer’s official technical instructions.

With its ability to condition three rooms, independent WiFi control, Inverter technology, quiet operation, and advanced air treatment technologies, the Daikin Perfera 3x1 multisplit air conditioner FTXM25B + FTXM25B + FTXM35B + 3MXM68A8 offers a versatile climate control solution for enjoying cooling and heating all year round.