Three Mitsubishi Electric MSZ-EF25VGK indoor units from the MSZ-EF series, each with 2.5 kW cooling capacity, available in white, black or silver, connected to an MXZ-3F54VF3 outdoor unit with 5.4 kW cooling and 7.0 kW heating capacity, with energy efficiency class A+++ for cooling and A++ for heating on the A+++ to D scale. SEER 8.52, SCOP 4.61, 21 dB(A) on the lowest fan speed, 195 mm depth, WiFi module with MELCloud app in every indoor unit. Each indoor unit is designed as a guideline for approximately 19 to 25 m²^*.

Performance and range

The Mitsubishi Electric MXZ-3F54VF3 outdoor unit has a cooling capacity of 5.4 kW with a control range of 2.9 to 6.8 kW and a heating capacity of 7.0 kW with a control range of 2.6 to 9.0 kW. For the three MSZ-EF25VGK indoor units, the manufacturer states 2.5 kW cooling and 3.2 kW heating capacity each, totaling 7.5 kW and thus 2.1 kW more than the outdoor unit; what this means in operation is explained in the frequently asked questions. The operating range is specified as minus 10 to plus 46 °C for cooling and minus 15 to plus 24 °C for heating. All three connections on the outdoor unit have 6 mm on the liquid side and 10 mm on the gas side.

Approximately 19 to 25 m²^* per indoor unit is a guideline at standard room height and normal insulation standards, not a binding design. Whether three rooms of this size are suitable for this configuration depends on room height, insulation, window areas, shading and usage; we will clarify this upon request.

* Guideline based on the cooling capacity specified by the manufacturer, at a standard room height of approximately 2.5 m, normal insulation standards and average solar radiation. Different conditions on site, such as large window areas, sloped roofs or a high number of people, may require a different performance class. The binding design is carried out on a case-by-case basis. For a professional design of your property, please contact us.

The most important advantages at a glance

• White, black or silver: three housing colors, with the same technology and price in every color.
• Three MSZ-EF25VGK indoor units with 2.5 kW each connected to an outdoor unit with 5.4 kW cooling and 7.0 kW heating capacity.
• Energy efficiency class A+++ for cooling and A++ for heating on the A+++ to D scale; SEER 8.52, SCOP 4.61.
• 195 mm depth with 885 mm width and 11.5 kg per indoor unit.
• 21 dB(A) on the lowest fan speed and quiet operation for each indoor unit.
• Built-in WiFi module, MELCloud app, wired remote control can be connected.
• Three identical indoor units, each approximately 19 to 25 m², same connections with 6 and 10 mm.
• Heating operation down to minus 15 °C with winter kit and anti-freeze protection.

Detailed functions

Color variants

White (model code W), black (B) or silver (S); the color variant is selected at the top of the page, and all three indoor units in a set come in the same color. Performance, dimensions, equipment and price are the same in all three colors.

Energy efficiency class A+++

A+++ for cooling is the highest level on the A+++ to D scale and requires a SEER of at least 8.5; 8.52 is specified. A++ for heating requires a SCOP of at least 4.6; 4.61 is specified. Both values apply to the combination of the outdoor unit and three indoor units, the same in every color. This page does not state the power consumption of the outdoor unit.

WiFi and MELCloud

Yes. Every MSZ-EF25VGK indoor unit has a built-in WiFi module; control is via the manufacturer's MELCloud app, in which the three rooms appear separately. An add-on module is not required. Each indoor unit comes with an infrared remote control with a weekly program and on/off timer; a wired remote control can additionally be connected and is not included in the delivery.

Multi-split principle

Three indoor units, one outdoor unit with three connections, three separate refrigerant lines: each room is controlled separately inside, outside only one space and one power supply are required. The three connections of the outdoor unit are fully occupied in this set.

Air quality

• Air purification filter in every indoor unit
• Silver ion air purification filter

Operating modes and comfort

• Cooling operation from minus 10 to plus 46 °C outdoor temperature
• Heating operation from minus 15 to plus 24 °C outdoor temperature, heat pump operation with inverter
• Econo Cool as an operating mode with adapted airflow
• i-save: stored set-back temperature, accessible via button
• Quiet operation with reduced fan speed
• Automatic fan control and vertical louver adjustment
• Anti-freeze protection in heating operation, winter kit on the outdoor unit
• Automatic restart after power failure

Control

• Three infrared remote controls with weekly program and on/off timer included
• WiFi module in every indoor unit, MELCloud app
• Wired remote control can be connected, as an accessory

Scope of delivery

Included in the standard scope:

• 1x Mitsubishi Electric MXZ-3F54VF3 outdoor unit, 5.4 kW cooling capacity
• 3x Mitsubishi Electric MSZ-EF25VGK indoor unit in white (W), black (B) or silver (S), 2.5 kW cooling capacity each, built-in WiFi
• 3x infrared remote control with weekly program

What you need additionally

• Three sets of pipes with 6 and 10 mm each
• Floor console or load-bearing wall console for 58 kg
• Wired remote control, if desired
• Condensate pumps, depending on the installation situation
• Electrical power supply and circuit breaker
• Installation and commissioning by a specialist company

A WiFi module cannot be retrofitted in any color variant; the control is built-in.

Technical data

Indoor units

Model	3x Mitsubishi Electric MSZ-EF25VGK, MSZ-EF series
Color	White (W), black (B) or silver (S), by choice
Cooling capacity per indoor unit	2.5 kW, controllable from 0.9 to 3.4 kW
Heating capacity per indoor unit	3.2 kW, controllable from 1.0 to 4.2 kW
Sound pressure level	21 / 36 dB(A), low / high speed
Dimensions (WxHxD)	885 x 299 x 195 mm, 11.5 kg
Pipe connections Liquid + Gas	6 mm (1/4") + 10 mm (3/8") per indoor unit
WiFi	built-in, MELCloud app, no additional module
Equipment	Air purification filter, silver ion air purification filter, Econo Cool, i-save, quiet operation, weekly program, anti-freeze protection, automatic restart, connection for wired remote control

Outdoor unit

Model	Mitsubishi Electric MXZ-3F54VF3
Cooling capacity	5.4 kW, controllable from 2.9 to 6.8 kW
Heating capacity	7.0 kW, controllable from 2.6 to 9.0 kW
Sound pressure level outdoor unit Cooling / Heating	46 / 50 dB(A)
Dimensions outdoor unit (WxHxD)	840 x 710 x 330 mm, 58 kg
Pipe connections outdoor unit Liquid + Gas	3x 6 mm (1/4") + 3x 10 mm (3/8")
Connections for indoor units	3, all occupied in this set
Winter kit	yes

System

Energy efficiency class Cooling / Heating	A+++ / A++, scale A+++ to D
SEER / SCOP	8.52 / 4.61
Total cooling capacity indoor units	7.5 kW
Operating range Cooling	-10 to +46 °C
Operating range Heating	-15 to +24 °C
Control	3x infrared remote control with weekly program, MELCloud app via built-in WiFi, wired remote control can be connected

Frequently asked questions

In what colors is this set available?

White (model code W), black (B) or silver (S); the color variant is selected at the top of the page, and all three indoor units in a set come in the same color. Performance, dimensions, equipment and price are the same in all three colors.

What cooling and heating capacity does the set have?

For the MXZ-3F54VF3 outdoor unit, 5.4 kW cooling capacity with a control range of 2.9 to 6.8 kW and 7.0 kW heating capacity with a control range of 2.6 to 9.0 kW are specified. Each MSZ-EF25VGK indoor unit is specified with 2.5 kW cooling capacity (0.9 to 3.4 kW) and 3.2 kW heating capacity (1.0 to 4.2 kW). The set is rated A+++ for cooling and A++ for heating on the A+++ to D scale, with SEER 8.52 and SCOP 4.61.

What do A+++ and SEER 8.52 mean for this set?

A+++ for cooling is the highest level on the A+++ to D scale and requires a SEER of at least 8.5; 8.52 is specified. A++ for heating requires a SCOP of at least 4.6; 4.61 is specified. Both values apply to the combination of the outdoor unit and three indoor units, the same in every color. This page does not state the power consumption of the outdoor unit.

Can I control the system via an app?

Yes. Every MSZ-EF25VGK indoor unit has a built-in WiFi module; control is via the manufacturer's MELCloud app, in which the three rooms appear separately. An add-on module is not required. Each indoor unit comes with an infrared remote control with a weekly program and on/off timer; a wired remote control can additionally be connected and is not included in the delivery.

How do three indoor units work with one outdoor unit?

The MXZ-3F54VF3 outdoor unit has three connections with 6 and 10 mm each; from each, a separate refrigerant line leads to an indoor unit. The rooms are controlled separately, via the respective remote control or the MELCloud app; the outdoor unit adjusts its performance between 2.9 and 6.8 kW to the demand.

Is the outdoor unit sufficient for all three rooms at the same time?

Three times 2.5 kW results in 7.5 kW at the indoor units, the outdoor unit is specified with 5.4 kW. If all three rooms demand full load at the same time, the outdoor unit divides its 5.4 kW, each indoor unit then receives approximately seven tenths of its rated capacity. If one or two indoor units are running, the full capacity is available to them. The manufacturer provides for this configuration.

For which rooms is this set suitable?

According to the manufacturer, each indoor unit is suitable for approximately 19 to 25 m²^*: three bedrooms, master bedroom and two children's rooms, three office rooms, that do not run at full load at the same time constantly. With 195 mm depth and 885 mm width, the indoor units are the same size in all three colors. The binding design is carried out on a case-by-case basis.

How many indoor units are included in the delivery?

Three MSZ-EF25VGK indoor units in the selected color (W, B or S), three infrared remote controls and the MXZ-3F54VF3 outdoor unit. Refrigerant lines, installation material, the console for the outdoor unit and the wired remote control are not included.

Is an installation set required for each indoor unit?

Yes, three identical: 6 mm (1/4") on the liquid side and 10 mm (3/8") on the gas side per indoor unit, three times 6 and three times 10 mm on the outdoor unit. The color of the indoor unit does not change this; the material is not part of the delivery and is measured by the specialist company according to the pipe routes.

How large and how heavy are the units?

The indoor units are specified with 885 x 299 x 195 mm and 11.5 kg, the same in all three colors. For the outdoor unit, 840 x 710 x 330 mm and 58 kg are stated in the data sheet; it stands on a floor console or a wall console designed for this weight, which the specialist company clarifies during the inspection.

How loud is the system?

The indoor units are specified with 21 dB(A) on the low fan speed and 36 dB(A) on the high fan speed, the outdoor unit with 46 dB(A) in cooling and 50 dB(A) in heating operation. The page does not state a sound power level. In quiet operation, the fan of the respective indoor unit rotates even slower.

What filters does the indoor unit have?

According to the manufacturer, every indoor unit has an air purification filter and a silver ion air purification filter, regardless of the color. Both are part of regular maintenance and are cleaned or replaced, three times for three indoor units.

How far apart can the indoor and outdoor units be?

This page does not state the permissible total pipe length, the length per indoor unit and the permissible height difference; we will provide you with the values upon request. Three lines meet at the outdoor unit, whose location is therefore determined first.

Can I heat with the system in winter?

Yes. The heating mode is specified for outdoor temperatures from minus 15 to plus 24 °C, and the cooling mode from minus 10 to plus 46 °C. For heating, it is rated A++ on the A+++ to D scale, with a SCOP of 4.61; the outdoor unit delivers 7.0 kW, and each indoor unit delivers 3.2 kW, with a controllable range up to 4.2 kW. The winter regulator keeps the outdoor unit ready for operation in cold weather, while the anti-freeze protection prevents the indoor unit from blowing cold air before the heat exchanger has warmed up. We can check whether the system can heat three rooms on its own upon request.

Can I install the air conditioning system myself?

No. Installation and commissioning must be carried out by a certified specialist company. You will need to plan for three pipe routes, three condensate drains, an electrical supply line, and a space for a 58 kg outdoor unit.