Daikin Perfera 4x1 Air Conditioner with WiFi 4MXM68A8 2.5 kW (3) + 3.5 kW

The Daikin Perfera 4x1 multisplit air conditioner with WiFi, 2.5 + 2.5 + 2.5 + 3.5 kW is a high-efficiency climate control solution designed to provide cooling and heating in four rooms using a single outdoor unit. This set combines three Daikin Perfera FTXM25B indoor units of 2.5 kW, one FTXM35B indoor unit of 3.5 kW, and one Daikin 4MXM68A8 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 smart two-zone motion sensor and a three-dimensional airflow distribution system. Its quiet operation and energy-saving functions make this unit an especially attractive solution for homes with multiple bedrooms, living rooms, studies and offices.

Daikin Perfera 4x1 air conditioner composition

This multisplit set is made up of the following units:

• 3 Daikin Perfera FTXM25B indoor units: wall-mounted 2.5 kW cooling class units each, equivalent to approximately 8,530 BTU/h per unit, commercially 9000 BTU. They feature WiFi, quiet operation, presence sensor and Flash Streamer technology.
• 1 Daikin Perfera FTXM35B indoor unit: wall-mounted 3.5 kW cooling class unit, equivalent to approximately 11,940 BTU/h, commercially 12000 BTU. Recommended for rooms with higher thermal needs, such as living rooms, dining rooms or large bedrooms.
• 1 Daikin 4MXM68A8 outdoor unit: Inverter multisplit unit with four independent refrigerant connections, R-32 refrigerant and a nominal capacity of 6.8 kW in cooling and 8.6 kW in heating.
• 4 Daikin ARC466A93 wireless remote controls: one for each indoor unit, to individually control the climate functions.

The 4x1 configuration allows you to condition four spaces using a single outdoor unit, reducing the space occupied on facades, terraces and balconies compared with installing four independent split systems.

Main advantages of the Daikin Perfera 4x1 air conditioner

Independent climate control for four rooms

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

For example, the three 2.5 kW FTXM25B units can be installed in bedrooms or studies, while the 3.5 kW FTXM35B unit is used in the living room or dining room.

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

Smart WiFi control with Daikin Onecta

The Daikin Perfera FTXM25B and FTXM35B indoor units feature WiFi connectivity so you can manage the 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 features include:

• Remote 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 occupants’ daily routines and avoid unnecessary energy 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, pollutants 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 room air quality and provide a more comfortable indoor environment.

Smart two-zone motion sensor

The indoor units include a smart presence sensor that detects the location of people within the room and adjusts the direction of the airflow to avoid 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 throughout the room, promoting a more uniform temperature.

In addition, three-dimensional airflow combines automatic vertical and horizontal movement to distribute cool or warm air across different areas of the room and reduce temperature differences.

Ultra-quiet operation at just 19 dB(A)

Both the FTXM25B and FTXM35B units achieve a minimum sound pressure of 19 dB(A) in quiet cooling mode.

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

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

Comfort and energy-saving functions

The Daikin Perfera air conditioner includes different modes to adapt its 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 the indoor unit’s operating noise.
• Night mode: adjusts 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 different operating schedules.

Cooling and heating capacity of the Daikin Perfera 4x1 set

The system combines three 2.5 kW class indoor units and one 3.5 kW unit, whose sum of individual capacities is 11.0 kW. However, the nominal cooling capacity of the set with all four units operating simultaneously is 6.8 kW, determined by the capacity of the 4MXM68A8 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 technical tables for the 4MXM68A8 outdoor unit and the 2.5 + 2.5 + 2.5 + 3.5 kW class combination, the reference nominal values are:

• Minimum cooling capacity: 2.44 kW.
• Nominal cooling capacity: 6.8 kW, approximately 23,200 BTU/h.
• Maximum cooling capacity: 8.90 kW.
• Nominal cooling power input: 1.54 kW.
• Nominal EER: approximately 4.42.

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

• First FTXM25B: 1.55 kW.
• Second FTXM25B: 1.55 kW.
• Third FTXM25B: 1.55 kW.
• FTXM35B: 2.16 kW.

When fewer indoor units are operating, the available capacity can be redistributed among the rooms that require climate control, always within the system’s limits.

Heating capacity

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

• Minimum heating capacity: 3.18 kW.
• Nominal heating capacity: 8.6 kW, approximately 29,340 BTU/h.
• Maximum heating capacity: 11.11 kW.
• Nominal heating power input: 1.79 kW.
• Nominal COP: approximately 4.80.

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

• First FTXM25B: 1.95 kW.
• Second FTXM25B: 1.95 kW.
• Third FTXM25B: 1.95 kW.
• FTXM35B: 2.74 kW.

The capacity and consumption values come from Daikin’s technical combination tables by power class for the 4MXM68A8 outdoor unit. Actual performance depends on indoor and outdoor temperatures, installation conditions and simultaneous operation.

Energy efficiency of the Daikin Perfera 4x1 air conditioner

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

For the Daikin 4MXM68A8 outdoor unit, the following seasonal efficiency values are published as a commercial reference for the multisplit range:

• Reference energy class in cooling: A++.
• Reference energy class in heating for average climate: A+.
• Reference SEER: 8.03.
• Reference SCOP for average climate: 4.22.
• Technology: Inverter with Swing compressor.
• 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 for each unit of electrical energy consumed under standardized calculation conditions.

Important: these energy values are commercial references published for the 4MXM68A8 range and do not constitute a certified specific energy label for the FTXM25B + FTXM25B + FTXM25B + FTXM35B combination. The final classification must be checked in the energy documentation corresponding to the exact references of the set.

Technical features of the Daikin FTXM25B 2.5 kW indoor units

The set includes three Daikin Perfera FTXM25B indoor units, designed to condition bedrooms, studies and other rooms with moderate thermal needs.

The following specifications correspond to each of the three indoor 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.
• 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 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, fan, dehumidification and weekly timer.

Technical features of the Daikin FTXM35B 3.5 kW indoor unit

The Daikin Perfera FTXM35B indoor unit offers a 3.5 kW cooling capacity class, making it suitable for living rooms, dining rooms, large bedrooms and other spaces with higher thermal 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.
• 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 with Daikin Onecta app.
• Comfort technologies: Comfort+, two-zone motion sensor and three-dimensional 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 timer.

Technical features of the Daikin 4MXM68A8 outdoor unit

The Daikin 4MXM68A8 outdoor unit is an Inverter multisplit heat pump designed to connect up to four 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: 4MXM68A8.
• Type: 4x1 multisplit outdoor unit.
• Number of connections for indoor units: 4.
• Nominal cooling capacity of the system: 6.8 kW.
• Nominal heating capacity of the system: 8.6 kW.
• Maximum connectable indoor capacity class: 11.0 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 factory charge: 1.35 tonnes.
• Dimensions (H × W × D): 734 × 974 × 408 mm.
• Weight: 63 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.
• Recommended circuit breaker in the manual: 20 A, subject to electrical calculation and installation regulations.
• Outdoor operating temperature in cooling: from -10 °C to +50 °C.
• Minimum outdoor operating temperature in heating: -20 °C, according to Daikin conditions.
• Maximum pipe length per indoor unit: 25 meters.
• Maximum total pipe length: 60 meters.

Refrigerant connections of the Daikin Perfera 4x1

The Daikin Perfera 4x1 multisplit air conditioner has four independent refrigerant circuits that connect the FTXM25B and FTXM35B indoor units to the 4MXM68A8 outdoor unit.

Connection diameters of the indoor units

The four indoor units in this set have the same refrigerant 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).
• FTXM35B: 1/4" liquid (6.4 mm) and 3/8" gas (9.5 mm).

Connection diameters of the outdoor unit

The Daikin 4MXM68A8 outdoor unit has four 1/4" liquid refrigerant connections, while the gas connection diameters are as follows:

• Port A: 1/4" liquid and 3/8" gas.
• Port B: 1/4" liquid and 3/8" gas.
• Port C: 1/4" liquid and 1/2" gas.
• Port D: 1/4" liquid and 1/2" gas.

Important about the connections: the four indoor units have 3/8" gas connections, while ports C and D 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 correctly connect these two circuits.

Daikin’s manual identifies reducers 2 and 4 to adapt these connections. The outdoor unit includes a reducer set among its standard accessories, but the installer must check that all the necessary elements for the installation are available.

Maximum pipe length and permitted height differences

To ensure proper operation of the Daikin Perfera 4x1 air conditioner, the installation must comply with the maximum refrigerant pipe lengths and height differences established by Daikin.

• Maximum pipe length per indoor unit: 25 meters.
• Maximum total refrigerant pipe length: 60 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 when the outdoor unit is 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 when the outdoor unit is installed lower: 15 meters.
• Total length covered by the factory refrigerant charge: 30 meters of liquid pipe.
• Additional refrigerant charge: 20 grams per additional meter when the total run exceeds 30 meters, applying the calculation and rounding procedure indicated by Daikin.
• Maximum permitted total refrigerant charge: 2.6 kg.

For example, it is possible to install the system with refrigerant runs of 10, 12, 15 and 18 meters, resulting in a total length of 55 meters. This distribution complies with the maximum lengths established by the manufacturer, although the height differences and the rest of the installation 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 according to the official instructions. The calculation must be carried out by a qualified professional, respecting the maximum permitted charge.

Pipe insulation requirements

Daikin establishes specific requirements for the thermal insulation of refrigerant circuits, 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.
• Recommended material: polyethylene foam suitable for refrigeration installations and with sufficient thermal resistance.

When environmental conditions involve high temperatures and relative humidity above 80%, the manufacturer recommends increasing the insulation thickness to at least 20 mm to prevent surface condensation.

What spaces is the Daikin Perfera 4x1 2.5 + 2.5 + 2.5 + 3.5 kW recommended for?

The Daikin Perfera 4x1 multisplit 2.5 + 2.5 + 2.5 + 3.5 kW is especially interesting for homes and offices that need to condition four spaces with different thermal demands.

A common layout may consist of installing the three 2.5 kW FTXM25B units in bedrooms and studies, while the 3.5 kW FTXM35B unit is used in the living room or dining room.

The areas each unit can condition will depend on insulation, orientation, ceiling height, windows, occupancy and climate conditions.

It is also important to note that when all four indoor units operate simultaneously, the available capacity is distributed according to the outdoor unit’s total capacity of 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 4x1 set consists of three FTXM25B indoor units, one FTXM35B indoor unit and one 4MXM68A8 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 correct use of the refrigerant reducers and the assignment of each indoor unit to its corresponding connection port.

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

With its ability to condition four rooms, independent WiFi control, Inverter technology, quiet operation and air purification technologies, the Daikin Perfera multisplit 4x1 air conditioner FTXM25B + FTXM25B + FTXM25B + FTXM35B + 4MXM68A8 offers a versatile solution for enjoying cooling and heating all year round.