Daikin Perfera 3x1 Air Conditioner with WiFi 2.0 kW (2) + 2.5 kW

The Daikin Perfera 3x1 multisplit air conditioner with WiFi, 2.0 + 2.0 + 2.5 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 FTXM20B indoor units of 2.0 kW, one FTXM25B indoor unit of 2.5 kW, and one Daikin 3MXM52A8 outdoor unit with a nominal cooling capacity of 5.2 kW.

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 and scheduling, adapting to the needs of each room.

The Daikin Perfera range stands out for its advanced air treatment technologies, such as Flash Streamer, the intelligent two-zone motion sensor and 3D airflow distribution. Its quiet operation and energy-saving functions make this system a particularly interesting option for homes, apartments and offices that need to climate control three spaces independently.

Composition of the Daikin Perfera 3x1 air conditioner

This multisplit set is made up of the following units:

• 2 Daikin Perfera FTXM20B indoor units: wall-mounted 2.0 kW cooling class units each, equivalent to approximately 6,824 BTU/h per unit, commercially 7000 BTU. They feature WiFi, quiet operation, intelligent presence sensor and Flash Streamer technology.
• 1 Daikin Perfera FTXM25B indoor unit: wall-mounted 2.5 kW cooling class unit, equivalent to approximately 8,530 BTU/h, commercially 9000 BTU. Suitable for bedrooms, offices and rooms with moderate thermal needs.
• 1 Daikin 3MXM52A8 outdoor unit: Inverter multisplit unit with three independent refrigerant connections, R-32 refrigerant and nominal capacity of 5.2 kW in cooling and 6.8 kW in heating.
• 3 Daikin ARC466A93 wireless remote controls: one for each indoor unit, allowing individual control of temperature and climate functions.

This configuration allows three rooms to be climate controlled using a single outdoor unit, reducing the space required on facades, balconies and terraces compared with installing three independent 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 the temperature, fan speed and operating schedules according to the needs of each room.

For example, the two 2.0 kW FTXM20B units can be installed in small bedrooms or offices, while the 2.5 kW FTXM25B unit is intended for 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 FTXM20B and FTXM25B 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.
• Scheduling 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 operation to the daily habits of occupants and avoid unnecessary consumption 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 odours present in indoor air.

This technology is complemented by different filtration elements:

• Silver allergen filter: helps capture certain allergens such as pollen.
• Titanium apatite deodorising filter: helps reduce unpleasant odours.
• Air filter: traps dust particles present in the air circulating through the unit.

These technologies help improve indoor air quality and provide a more comfortable environment in the climate-controlled rooms.

Intelligent two-zone motion sensor

The indoor units include an intelligent two-zone 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 and promote a homogeneous temperature throughout the room.

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.

Ultra-quiet operation of only 19 dB(A)

One of the main features of the Daikin Perfera range is its quiet operation. Both FTXM20B indoor units and the FTXM25B reach 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 sound levels make them especially suitable for bedrooms, children's rooms, offices 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 the needs of each moment:

• Powerful mode: temporarily increases performance 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 in the room without activating cooling or heating.
• Weekly timer: makes it easy to set personalised operating schedules.
• Auto restart: restores settings after a power outage.
• Temperature limit: allows setting adjustment limits to avoid excessively high or low temperatures.

Cooling and heating capacity of the Daikin Perfera 3x1 set

The system combines two 2.0 kW class indoor units and one 2.5 kW class unit, whose sum of individual capacities is 6.5 kW. However, the combined nominal cooling capacity when the three indoor units operate simultaneously is 5.2 kW, determined by the performance of the 3MXM52A8 outdoor unit.

The 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 technical tables for the 3MXM52A8 outdoor unit and the 2.0 + 2.0 + 2.5 kW combination, the nominal reference values are:

• Minimum cooling capacity: 1.8 kW.
• Nominal cooling capacity: 5.2 kW, approximately 17,740 BTU/h.
• Maximum cooling capacity: 7.0 kW.
• Nominal electrical consumption in cooling: 1.06 kW.
• Calculated nominal EER: approximately 4.91.

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

• First FTXM20B 2.0 kW unit: 1.60 kW.
• Second FTXM20B 2.0 kW unit: 1.60 kW.
• FTXM25B 2.5 kW unit: 2.00 kW.

When only one or two indoor units are operating, the available capacity can be redistributed among the rooms that require climate control, always 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 6.8 kW.

• Minimum heating capacity: 1.3 kW.
• Nominal heating capacity: 6.8 kW, approximately 23,200 BTU/h.
• Maximum heating capacity: 8.0 kW.
• Nominal electrical consumption in heating: 1.38 kW.
• Calculated nominal COP: approximately 4.93.

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

• First FTXM20B 2.0 kW unit: 2.09 kW.
• Second FTXM20B 2.0 kW unit: 2.09 kW.
• FTXM25B 2.5 kW unit: 2.62 kW.

These values come from the official combination tables by power class published by Daikin for the 3MXM52A8 outdoor unit. Actual performance will depend 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.

The Daikin 3MXM-A8 outdoor range achieves an energy rating of up to A+++ in cooling and A++ in heating, according to the technical information published by Daikin for this multisplit unit family.

Its main energy features include:

• Maximum reference energy class of the range in cooling: A+++.
• Maximum reference energy class of the range in heating: A++.
• Nominal cooling capacity of the set: 5.2 kW.
• Nominal heating capacity of the set: 6.8 kW.
• Nominal electrical consumption of the set in cooling: 1.06 kW.
• Nominal electrical consumption of the set in heating: 1.38 kW.
• Technology: Inverter with Swing compressor.
• Refrigerant: R-32.
• Independent control: allows you to climate control only the rooms that need it.
• Econo mode: helps limit maximum electrical consumption.

As a commercial reference, Daikin documentation for the 3MXM52A8 outdoor unit publishes SEER values of 8.51 and SCOP values of 5.10 for certain previous-generation Perfera combinations. These indicators show the level of efficiency this family can achieve, but they should not be automatically attributed to all compatible combinations.

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.

Important: the exact energy rating and the final SEER and SCOP values depend on the combination of indoor units. The documentation consulted does not provide a specific energy label for FTXM20B + FTXM20B + FTXM25B + 3MXM52A8, so the reference efficiency values above do not constitute an energy certification for the set.

Technical features of the Daikin FTXM20B 2.0 kW indoor units

The set includes two Daikin Perfera FTXM20B indoor units, designed to climate control bedrooms, offices and rooms with moderate thermal needs.

The following specifications correspond to each of the two indoor units:

• Brand: Daikin.
• Series: Perfera.
• Reference: FTXM20B.
• Quantity: 2 units.
• Type: wall-mounted indoor unit.
• Colour: white.
• Cooling capacity class: 2.0 kW.
• Cooling equivalent: approximately 6,824 BTU/h, commercially 7000 BTU.
• Dimensions (H × W × D): 298 × 804 × 252 mm.
• Weight per unit: 11.5 kg.
• Nominal electrical consumption of the indoor unit in cooling: 0.019 kW.
• Nominal electrical consumption 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+, intelligent 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 programming.

Technical features 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.
• Colour: 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: 11.5 kg.
• Nominal electrical consumption of the indoor unit in cooling: 0.019 kW.
• Nominal electrical consumption 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+, intelligent 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 programming.

Technical features of the Daikin 3MXM52A8 outdoor unit

The Daikin 3MXM52A8 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: 3MXM52A8.
• Type: 3x1 multisplit outdoor unit.
• Number of connections for indoor units: 3.
• Nominal cooling capacity of the set: 5.2 kW.
• Nominal heating capacity of the set: 6.8 kW.
• Total maximum capacity of connectable indoor classes: 9.0 kW.
• Technology: Inverter.
• Compressor: hermetically sealed Swing compressor.
• Refrigerant: R-32.
• Factory refrigerant charge: 1.80 kg.
• Global warming potential (GWP): 675.
• CO₂ equivalent of the factory charge: approximately 1.22 tonnes.
• Dimensions (H × W × D): 734 × 974 × 408 mm.
• Weight: 57 kg.
• Nominal sound pressure in cooling: 46 dB(A).
• Nominal sound pressure in heating: 47 dB(A).
• Reference sound power: 59 dB(A).
• Power supply: single-phase, 220-240 V, 50 Hz.
• Reference current for electrical sizing: 16.3 A.
• Recommended circuit breaker in the manual: 20 A, subject to electrical calculation and current regulations.
• Outdoor operating temperature in cooling: from -10 °C to +50 °C.
• Heating operation: designed to work with low outdoor temperatures, down to approximately -20 °C according to Daikin conditions.
• Maximum pipe length per indoor unit: 25 metres.
• Maximum total refrigerant piping length: 50 metres.

Refrigerant connections of the Daikin Perfera 3x1

The Daikin Perfera 3x1 multisplit air conditioner has three independent refrigerant circuits that connect the two FTXM20B indoor units and the FTXM25B unit to the 3MXM52A8 outdoor unit.

Connection diameters of the indoor units

The three indoor units have the same refrigerant connection diameters:

• First FTXM20B 2.0 kW unit: 1/4" (6.4 mm) liquid connection and 3/8" (9.5 mm) gas connection.
• Second FTXM20B 2.0 kW unit: 1/4" (6.4 mm) liquid connection and 3/8" (9.5 mm) gas connection.
• FTXM25B 2.5 kW unit: 1/4" (6.4 mm) liquid connection and 3/8" (9.5 mm) gas connection.

Connection diameters of the outdoor unit

The Daikin 3MXM52A8 outdoor unit has three 1/4" liquid refrigerant ports, while the gas connection diameters are as follows:

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

Important regarding 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 specifies the use of reducers identified as 2 and 4 to adapt the gas connections of ports B and C to 3/8" piping.

The outdoor unit includes a set of reducers among its standard accessories, but the installer must check that all necessary adapters are available and follow Daikin's connection diagram.

Maximum pipe lengths and permitted height differences

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

• Maximum pipe length per indoor unit: 25 metres.
• Maximum total 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 the calculation and rounding procedure indicated by Daikin.
• Maximum permitted total refrigerant charge: 2.2 kg.

For example, an installation can be carried out with refrigerant runs of 10, 15 and 20 metres, giving a total length of 45 metres. This distribution respects the maximum lengths set by the manufacturer, although the height differences and the rest of the technical conditions must also be checked.

When exceeding the 30 metres 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 metres, the theoretical calculation would be 300 grams additional, following the manufacturer's procedure.

The refrigerant length corresponds to the one-way run of the liquid pipe between the units, without counting the gas pipe length 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: insulation with a minimum thickness of 10 mm.
• 3/8" gas piping: insulation with a minimum thickness of 13 mm.
• Material: polyethylene foam suitable for refrigeration installations, with a minimum thermal resistance of 120 °C.
• Refrigerant piping: seamless copper, phosphorus deoxidised and suitable for R-32 refrigerant.

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

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

The Daikin Perfera multisplit 3x1 2.0 + 2.0 + 2.5 kW is especially suitable for homes and offices that need to climate control three rooms with moderate thermal needs.

A common layout may consist of installing the two 2.0 kW FTXM20B units in small bedrooms, children's rooms or offices, while the 2.5 kW FTXM25B unit is used for a larger bedroom.

As a commercial guideline, the 2.0 kW units may be suitable for rooms of approximately 12 to 20 m², while the 2.5 kW unit can be used in rooms of around 15 to 25 m².

These areas are indicative and do not replace a thermal load calculation. The actual climate control capacity will depend on insulation, orientation, ceiling height, glazed surface, 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, 5.2 kW in cooling and 6.8 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 two FTXM20B indoor units, one FTXM25B indoor unit and one 3MXM52A8 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, it will be necessary to have copper refrigerant piping, insulation, electrical and interconnection wiring, condensate drain piping, trunking, outdoor unit supports and fixing elements.

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

The installation must respect the maximum pipe lengths, height differences, refrigerant connections and power 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 climate control three rooms, independent WiFi control, Inverter technology, quiet operation and advanced air treatment technologies, the Daikin Perfera multisplit 3x1 air conditioner FTXM20B + FTXM20B + FTXM25B + 3MXM52A8 offers an efficient and versatile solution for enjoying cooling and heating all year round.