3-in-1 Air Conditioner with WiFi Daikin Perfera 2.0 kW + 2.5 kW + 4.2 kW

The Daikin Perfera 3x1 multisplit air conditioner with WiFi, 2.0 + 2.5 + 4.2 kW is a climate control solution designed to provide cooling and heating in three rooms using a single outdoor unit. This set combines a Daikin Perfera FTXM20B 2.0 kW indoor unit, an FTXM25B 2.5 kW indoor unit, an FTXM42B 4.2 kW indoor unit, and a Daikin 3MXM68A8 outdoor unit with 6.8 kW nominal cooling capacity.

Thanks to its Inverter technology, heat pump with R-32 refrigerant and WiFi connectivity, it lets you 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, two-zone intelligent motion sensor and 3D airflow distribution. Its quiet operation and energy-saving functions make this system an especially attractive option for homes, apartments and offices that need to condition three spaces with different thermal requirements.

Daikin Perfera 3x1 air conditioner composition

This multisplit set is made up of the following units:

• 1 Daikin Perfera FTXM20B indoor unit: wall-mounted unit with 2.0 kW cooling class, equivalent to approximately 6,824 BTU/h, commercially 7000 BTU. It features WiFi, quiet operation, intelligent presence sensor and Flash Streamer technology.
• 1 Daikin Perfera FTXM25B indoor unit: wall-mounted unit with 2.5 kW cooling class, equivalent to approximately 8,530 BTU/h, commercially 9000 BTU. Suitable for bedrooms, offices and small to medium-sized rooms.
• 1 Daikin Perfera FTXM42B indoor unit: wall-mounted unit with 4.2 kW cooling class, equivalent to approximately 14,330 BTU/h, commercially 14000 BTU. Recommended for living rooms, dining rooms and spaces with higher climate control needs.
• 1 Daikin 3MXM68A8 outdoor unit: Inverter multisplit unit with three independent cooling 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 control temperature and climate functions individually.

This configuration allows three rooms to be conditioned using a single outdoor unit, reducing the space required on façades, balconies and terraces 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 controlled separately, adjusting temperature, fan speed and operating schedules according to the needs of each room.

For example, the 2.0 kW FTXM20B unit can be installed in a small bedroom or office, the 2.5 kW FTXM25B unit in a larger bedroom, and the 4.2 kW FTXM42B unit in the living room or dining room.

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 FTXM20B, FTXM25B and FTXM42B 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 for each indoor unit.
• Independent temperature adjustment for each room.
• Selection of cooling, heating, fan and dehumidification modes.
• Adjustment of fan speed and airflow distribution.
• Setting schedules and weekly timers.
• Control of key functions through compatible voice assistants such as Amazon Alexa and Google Assistant.

WiFi control makes it possible to adapt operation to the occupants’ daily routines, avoiding 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, pollutants and odours 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 deodorising filter: helps reduce unpleasant odours.
• 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 smart presence sensor that detects where people are in the room and adjusts the direction of airflow to reduce direct drafts on occupants.

When no presence is detected for a certain period, the unit 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 throughout the room and promote a more uniform 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 and provide greater thermal comfort during operation.

Quiet operation for bedrooms and rest areas

One of the main features of the Daikin Perfera range is its quiet operation, especially suitable for bedrooms, offices and spaces where discreet climate control is desired.

• FTXM20B 2.0 kW: minimum sound pressure of 19 dB(A) in cooling and 20 dB(A) in heating.
• 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.

These values correspond to the indoor units’ quiet mode and allow you to enjoy climate control with reduced noise levels.

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 minimise operating noise.
• Night mode: adapts operation during rest hours.
• Dehumidification: helps reduce ambient humidity.
• Fan mode: allows air to circulate without activating cooling or heating.
• Weekly timer: makes it easy to set personalised operating schedules.
• Auto restart: restores operating settings after a power interruption.
• Temperature limit: allows you to set regulation limits to avoid excessively high or low temperatures.

Cooling and heating capacity of the Daikin Perfera 3x1 set

The system combines three indoor units in the 2.0, 2.5 and 4.2 kW class, whose individual capacities add up to 8.7 kW. However, the combined nominal cooling capacity when the three indoor units operate simultaneously is 6.8 kW, determined by the capacity of the 3MXM68A8 outdoor unit.

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

Cooling capacity

According to Daikin’s official tables for the 3MXM68A8 outdoor unit and the 2.0 + 2.5 + 4.2 kW class combination, the reference nominal 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.
• Nominal electrical input in cooling: 1.75 kW.
• Nominal EER: approximately 3.89.

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

• FTXM20B 2.0 kW unit: 1.56 kW.
• FTXM25B 2.5 kW unit: 1.95 kW.
• FTXM42B 4.2 kW unit: 3.28 kW.

When only one or two indoor units are operating, the available capacity adapts to the demand of the rooms in use, within the system’s limits.

Heating capacity

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

• Minimum heating capacity: 2.41 kW.
• Nominal heating capacity: 8.6 kW, approximately 29,340 BTU/h.
• Maximum heating capacity: 10.64 kW.
• Nominal electrical input in heating: 2.01 kW.
• Nominal COP: approximately 4.29.

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

• FTXM20B 2.0 kW unit: 1.98 kW.
• FTXM25B 2.5 kW unit: 2.47 kW.
• FTXM42B 4.2 kW unit: 4.15 kW.

These values come from Daikin’s official technical tables for the 20 + 25 + 42 class combination with the 3MXM68A8 outdoor unit. The distributed capacities are shown rounded, and actual performance depends 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.

According to Daikin’s official combination tables for the 3MXM68A8 outdoor unit with 20 + 25 + 42 class indoor units, the seasonal reference values are as follows:

• Reference energy class in cooling: A++.
• Reference energy class in heating for average climate: A+.
• Reference SEER: 7.68.
• Reference SCOP in average climate: 4.16.
• Design load in cooling (Pdesignc): 6.8 kW.
• Design load in heating for average climate (Pdesignh): 5.3 kW.
• Reference annual energy consumption in cooling: 310 kWh/year.
• Reference annual energy consumption in heating for average climate: 1,782 kWh/year.
• Refrigerant: R-32.

SEER and SCOP indicators express the seasonal energy performance of the air conditioner. The higher the value, the greater the amount of thermal energy supplied per unit of electrical energy consumed under standardised calculation conditions.

The annual consumption figures shown are reference values used to compare the energy efficiency of equipment. Actual consumption will depend on the home’s insulation, selected temperatures, operating hours and weather conditions.

Note on energy efficiency: the seasonal values above correspond to Daikin’s reference tables for the 2.0 + 2.5 + 4.2 kW combination with the 3MXM68A8 outdoor unit. The certified energy label for FTXM-B generation indoor units should be confirmed with the manufacturer before considering these values definitive for the marketed set.

Technical specifications of the Daikin FTXM20B 2.0 kW indoor unit

The Daikin Perfera FTXM20B indoor unit is a compact wall-mounted unit designed to condition bedrooms, offices and rooms with moderate thermal needs.

• Brand: Daikin.
• Series: Perfera.
• Reference: FTXM20B.
• Quantity: 1 unit.
• Type: wall-mounted indoor unit.
• Color: white.
• Cooling capacity class: 2.0 kW.
• Cooling equivalence: approximately 6,824 BTU/h, commercially 7000 BTU.
• Dimensions (H × W × D): 298 × 804 × 252 mm.
• Weight: 11.5 kg.
• Nominal electrical input of the indoor unit in cooling: 0.019 kW.
• Nominal electrical input of the 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 / 26 / 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 app.
• Comfort technologies: Comfort+, two-zone motion sensor and 3D airflow.
• Air treatment: Flash Streamer, silver particle filter and titanium apatite deodorising filter.
• Additional functions: Powerful mode, Econo mode, quiet operation, fan, dehumidification and weekly timer.

Technical specifications of the Daikin FTXM25B 2.5 kW indoor unit

The Daikin Perfera FTXM25B indoor unit is designed to provide efficient climate control in bedrooms, offices and other small to medium-sized rooms, combining quiet operation with WiFi control.

• Brand: Daikin.
• Series: Perfera.
• Reference: FTXM25B.
• Quantity: 1 unit.
• Type: wall-mounted indoor unit.
• Color: white.
• Cooling capacity class: 2.5 kW.
• Cooling equivalence: approximately 8,530 BTU/h, commercially 9000 BTU.
• Dimensions (H × W × D): 298 × 804 × 252 mm.
• Weight: 11.5 kg.
• Nominal electrical input of the indoor unit in cooling: 0.019 kW.
• Nominal electrical input of the 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 app.
• Comfort technologies: Comfort+, two-zone motion sensor and 3D airflow.
• Air treatment: Flash Streamer, silver particle filter and titanium apatite deodorising filter.
• Additional functions: Powerful mode, Econo mode, quiet operation, fan, dehumidification and weekly timer.

Technical specifications of the Daikin FTXM42B 4.2 kW indoor unit

The Daikin Perfera FTXM42B indoor unit offers a cooling capacity class of 4.2 kW, so it is aimed at living rooms, dining rooms, offices and rooms with greater cooling and heating needs.

• Brand: Daikin.
• Series: Perfera.
• Reference: FTXM42B.
• Quantity: 1 unit.
• Type: wall-mounted indoor unit.
• Color: white.
• Cooling capacity class: 4.2 kW.
• Cooling equivalence: approximately 14,330 BTU/h, commercially 14000 BTU.
• Dimensions (H × W × D): 298 × 804 × 252 mm.
• Weight: 11.5 kg.
• Nominal electrical input of the indoor unit in cooling: 0.031 kW.
• Nominal electrical input of the indoor unit in heating: 0.035 kW.
• Airflow in cooling (high/medium/low/quiet): 13.3 / 9.8 / 7.2 / 5.0 m³/min.
• Airflow in heating (high/medium/low/quiet): 14.0 / 10.0 / 7.1 / 5.3 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).
• Sound power in heating: 60 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 app.
• Comfort technologies: Comfort+, two-zone motion sensor and 3D airflow.
• Air treatment: Flash Streamer, silver particle filter and titanium apatite deodorising filter.
• Additional functions: Powerful mode, Econo mode, quiet operation, fan, dehumidification and weekly timer.

Technical specifications of the Daikin 3MXM68A8 outdoor unit

The Daikin 3MXM68A8 outdoor unit is a multisplit Inverter heat pump 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 connectable indoor capacity class: 11.0 kW.
• Technology: Inverter.
• Compressor: hermetically sealed Swing.
• Refrigerant: R-32.
• Factory refrigerant charge: 2.00 kg.
• Global warming potential (GWP): 675.
• CO₂ equivalent of 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.
• Reference current for electrical sizing: 19.8 A.
• Recommended thermal-magnetic protection in the manual: 20 A, subject to electrical calculation and current regulations.
• Outdoor operating temperature in cooling: from -10 °C to +50 °C.
• Minimum outdoor operating temperature in heating: -20 °C, according to Daikin’s specified conditions.
• Maximum pipe length per indoor unit: 25 metres.
• Total maximum refrigerant piping length: 50 metres.

Refrigerant connections of the Daikin Perfera 3x1

The Daikin Perfera 3x1 multisplit air conditioner has three independent refrigerant circuits connecting the FTXM20B, FTXM25B and FTXM42B indoor units to the 3MXM68A8 outdoor unit.

Indoor unit connection diameters

The three indoor units have the following refrigerant connection diameters:

• Daikin FTXM20B 2.0 kW: 1/4" liquid connection (6.4 mm) and 3/8" gas connection (9.5 mm).
• Daikin FTXM25B 2.5 kW: 1/4" liquid connection (6.4 mm) and 3/8" gas connection (9.5 mm).
• Daikin FTXM42B 4.2 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 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 in the circuits connected to these ports.

According to Daikin’s reducer scheme for the 3MXM68A8, connecting a class 42 indoor unit with 3/8" gas piping must be done on one of the compatible ports B or C, using the corresponding reducers. Port A only applies to certain previous versions of class 42 units, so it should not be automatically assigned to the FTXM42B without manufacturer confirmation.

The outdoor unit includes a set of reducers among its standard accessories. The installer must check the availability of the necessary adapters and respect the assignment of the indoor units to the authorised refrigerant ports.

Maximum pipe length and permitted height differences

To ensure correct operation of the Daikin Perfera 3x1 system, the installation must comply with the maximum refrigerant pipe lengths and height differences established by Daikin.

• Maximum pipe length per indoor unit: 25 metres.
• Total maximum refrigerant pipe length: 50 metres, adding the three runs together.
• Minimum pipe length per indoor unit: 3 metres.
• Maximum height difference between outdoor and indoor units when the outdoor unit is installed higher: 15 metres.
• Maximum height difference between indoor units when the outdoor unit is installed higher: 7.5 metres.
• Maximum height difference between outdoor and indoor units when the outdoor unit is installed lower: 7.5 metres.
• Maximum height difference between indoor units when the outdoor unit is installed lower: 15 metres.
• Total length covered by the factory refrigerant charge: 30 metres of liquid piping.
• Additional refrigerant charge: 20 grams per additional metre when the total length exceeds 30 metres, applying Daikin’s specified calculation and rounding procedure.
• Maximum permitted total refrigerant charge: 2.4 kg.

For example, an installation can be designed with refrigerant runs of 10, 15 and 20 metres, giving a total length of 45 metres. This layout complies with the manufacturer’s maximum pipe length limits, although the height differences and other technical conditions must also be checked.

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

Refrigerant length refers to the one-way run of the liquid pipe between the units, without adding the gas pipe of the same circuit again.

Insulation of refrigerant piping

Daikin sets specific requirements for refrigerant pipe thermal insulation in order to reduce energy losses and prevent condensation.

• 1/4" liquid pipes: insulation with a minimum thickness of 10 mm.
• 3/8" gas pipes: insulation with a minimum thickness of 13 mm.
• Material: polyethylene foam suitable for refrigeration installations, with thermal resistance of at least 120 °C.
• Copper pipes: seamless copper, phosphorus deoxidised and suitable for R-32 refrigerant installations.

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 the refrigerant piping conditions, condensate drainage, electrical supply and the necessary clearances around the outdoor unit.

Which spaces is the Daikin Perfera 3x1 2.0 + 2.5 + 4.2 kW recommended for?

The Daikin Perfera 3x1 multisplit 2.0 + 2.5 + 4.2 kW is especially interesting for homes and offices that need to condition three rooms with different thermal demands.

A common layout may consist of installing the 2.0 kW FTXM20B unit in a small bedroom or office, the 2.5 kW FTXM25B in a medium-sized bedroom and the 4.2 kW FTXM42B in the living room or dining room.

As a commercial guideline, the 2.0 kW unit may be suitable for rooms of approximately 12 to 20 m², the 2.5 kW unit for rooms of around 15 to 25 m² and the 4.2 kW unit for spaces of approximately 35 to 45 m².

These surface areas are indicative and do not replace a thermal load calculation. The actual climate control capacity will depend on insulation, orientation, ceiling height, glazing area, occupancy and weather conditions.

It is also important to note that when the three indoor units operate simultaneously, the available power 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 advisable for a professional to calculate the cooling and heating needs of each room before installation.

Installation and required materials

The Daikin Perfera 3x1 set consists of one FTXM20B indoor unit, one FTXM25B indoor unit, one FTXM42B 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 fixing elements will be required.

It will also be necessary to check the correct use of the refrigerant reducers to adapt the gas connections of ports B and C, as well as verify the assignment of each indoor unit to its corresponding port.

The installation must comply with the maximum pipe lengths, height differences, refrigerant connections and electrical supply conditions established by Daikin.

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 multisplit 3x1 air conditioner FTXM20B + FTXM25B + FTXM42B + 3MXM68A8 offers a versatile climate control solution for enjoying cooling and heating all year round.