Four Mitsubishi Electric MSZ-AY25VGK indoor units, each with 2.5 kW, connected to one MXZ-4F72VF outdoor unit with 7.2 kW cooling and 8.6 kW heating capacity: the MSZ-AY series multi-split set for four rooms, with energy efficiency class A++ for cooling and A+ for heating on the A+++ to D scale. SEER 8.13, SCOP 4.07, 18 dB(A) on the lowest fan speed in each room, WiFi module built into all four indoor units. As a guideline, each indoor unit covers approximately 19 to 25 m²^*.

Performance and range

The Mitsubishi Electric MXZ-4F72VF outdoor unit is rated at 7.2 kW cooling capacity, adjustable from 3.7 to 8.8 kW, and 8.6 kW heating capacity, adjustable from 3.4 to 10.7 kW. The four MSZ-AY25VGK indoor units are rated at 2.5 kW cooling and 3.2 kW heating capacity each; their combined 10.0 kW capacity is 2.8 kW above the outdoor unit's capacity, which is explained in the frequently asked questions. Cooling operation is rated for outdoor temperatures from minus 10 to plus 46 °C, and heating operation from minus 15 to plus 24 °C. The four connections are specified as four 6 mm liquid-side and three 10 mm and one 12 mm gas-side connections.

The area of approximately 19 to 25 m²^* refers to each of the four indoor units and is a guideline for standard room height and normal insulation standards, not a binding design. Room height, insulation, window areas, shading, and the use of the four rooms determine whether this combination is suitable; we check 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 occupants, may require a different capacity class. The binding design is carried out on an object-by-object basis. For a professional design of your property, please contact us.

The most important advantages at a glance

• Four rooms on one outdoor unit: 7.2 kW cooling and 8.6 kW heating capacity for four indoor units with 2.5 kW each.
• Energy efficiency class A++ for cooling and A+ for heating on the A+++ to D scale, SEER 8.13, SCOP 4.07.
• 18 dB(A) on the lowest fan speed in all four indoor units, night mode in every room.
• WiFi module built in four times, all rooms via app, without additional modules.
• Four identical indoor units, each approximately 19 to 25 m², same filters, same operation.
• Air purification filter with silver ion coating and V-Blocking filter in each of the four indoor units.
• Four infrared remote controls with weekly program and i-save.
• Heating operation down to minus 15 °C outdoor temperature, 8.6 kW heating capacity.

Functions in detail

Energy efficiency class A++

The scale ranges from A+++ to D. For A++ in cooling, the classification requires a SEER of at least 6.1; 8.13 is specified. For A+ in heating, a SCOP of at least 4.0 applies; 4.07 is specified. The power consumption of the outdoor unit is specified as 1.85 kW in cooling and 1.87 kW in heating operation.

Built-in WiFi

Yes. The K suffix in MSZ-AY25VGK stands for the factory-installed WiFi module, and that in each of the four indoor units; you do not need additional modules. Four rooms can thus be operated via an app, individually or together. The page does not list the name of the app; we will provide it to you upon request. Four infrared remote controls with weekly program are included in the delivery.

Multi-split principle

Instead of four outdoor units, there is one with four connections, from which four separate refrigerant lines lead to the indoor units. Each room is controlled individually, while outside only one installation space and one power supply are required. All four connections are occupied in this set.

Air quality

• Air purification filter with silver ion coating in each indoor unit
• Integrated V-Blocking filter
• Quad Connect plasma filter optional as an accessory, not included in the delivery

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
• Night mode with reduced fan speed and capacity, in each indoor unit
• i-save: save a reduced temperature and recall it via a button
• Horizontal air outlet for distribution in the room
• Matte white housing

Control

• Four infrared remote controls with weekly program included in the delivery
• WiFi module in each indoor unit, four rooms in one app

Scope of delivery

Included in the standard scope:

• 1x Mitsubishi Electric MXZ-4F72VF outdoor unit, 7.2 kW cooling capacity
• 4x Mitsubishi Electric MSZ-AY25VGK indoor unit, 2.5 kW cooling capacity each, built-in WiFi
• 4x infrared remote control with weekly program

What you need additionally

• Four sets of pipes: four 6 mm, three 10 mm, and one 12 mm, transition at the fourth connection according to the specifications of the specialist company
• Floor console or load-bearing wall console for 59 kg
• Quad Connect plasma filter, if desired
• Condensate pumps, depending on the installation situation
• Electrical supply and circuit breaker
• Installation and commissioning by a specialist company

WiFi modules are not required, as they are built into all four indoor units.

Technical data

Indoor units

Model	4x Mitsubishi Electric MSZ-AY25VGK
Cooling capacity per indoor unit	2.5 kW, adjustable from 0.9 to 3.4 kW
Heating capacity per indoor unit	3.2 kW, adjustable from 1.0 to 4.1 kW
Sound pressure level	18 / 36 dB(A), low / high speed
Dimensions (WxHxD)	798 x 299 x 245 mm, 10.5 kg
Pipe connections Liquid + Gas	6 mm (1/4") + 10 mm (3/8") per indoor unit
WiFi	built-in, no additional module
Features	Air purification filter with silver ion coating, V-Blocking filter, night mode, i-save, horizontal air outlet, weekly program

Outdoor unit

Model	Mitsubishi Electric MXZ-4F72VF
Cooling capacity	7.2 kW, adjustable from 3.7 to 8.8 kW
Heating capacity	8.6 kW, adjustable from 3.4 to 10.7 kW
Power consumption Cooling / Heating	1.85 / 1.87 kW
Sound pressure level Outdoor unit Cooling / Heating	48 / 54 dB(A)
Dimensions Outdoor unit (WxHxD)	840 x 710 x 330 mm, 59 kg
Pipe connections Outdoor unit Liquid + Gas	4x 6 mm (1/4") + 3x 10 mm (3/8") and 1x 12 mm (1/2")
Connections for indoor units	4, all occupied in this set

System

Energy efficiency class Cooling / Heating	A++ / A+, scale A+++ to D
SEER / SCOP	8.13 / 4.07
Total cooling capacity of indoor units	10.0 kW
Cooling operating range	-10 to +46 °C
Heating operating range	-15 to +24 °C
Power supply	220 to 240 V, 50 Hz, 1 phase
Control	4x infrared remote control with weekly program, app via built-in WiFi

Frequently asked questions

What cooling and heating capacity does the set have?

For the MXZ-4F72VF outdoor unit, the manufacturer specifies 7.2 kW cooling capacity with an adjustable range of 3.7 to 8.8 kW and 8.6 kW heating capacity with an adjustable range of 3.4 to 10.7 kW. The four MSZ-AY25VGK indoor units are rated at 2.5 kW cooling capacity (0.9 to 3.4 kW) and 3.2 kW heating capacity (1.0 to 4.1 kW) each. The set is rated in energy efficiency class A++ for cooling and A+ for heating, on the A+++ to D scale, with a SEER of 8.13 and a SCOP of 4.07.

What do A++ and SEER 8.13 mean for this set?

The scale ranges from A+++ to D. For A++ in cooling, the classification requires a SEER of at least 6.1; 8.13 is specified. For A+ in heating, a SCOP of at least 4.0 applies; 4.07 is specified. The power consumption of the outdoor unit is specified as 1.85 kW in cooling and 1.87 kW in heating operation.

Can I control the system via an app?

Yes. The K suffix in MSZ-AY25VGK stands for the factory-installed WiFi module, and that in each of the four indoor units; you do not need additional modules. Four rooms can thus be operated via an app, individually or together. The page does not list the name of the app; we will provide it to you upon request. Four infrared remote controls with weekly program are included in the delivery.

How do four indoor units work on one outdoor unit?

Four connections on the MXZ-4F72VF outdoor unit, four indoor units, four separate refrigerant lines. Each room gets its own temperature and its own time program; the outdoor unit provides the total capacity and regulates it between 3.7 and 8.8 kW.

Is the outdoor unit sufficient for all four rooms at once?

The four indoor units are rated together at 10.0 kW, the outdoor unit at 7.2 kW. At full load in all four rooms at once, the outdoor unit distributes 7.2 kW across four indoor units, so approximately seven tenths of the rated capacity per unit. If two or three indoor units are in operation, they receive their full capacity. The combination of four indoor units with 2.5 kW each on this outdoor unit is designed by the manufacturer.

What rooms is this set suitable for?

Each indoor unit is designed for approximately 19 to 25 m²^* according to the manufacturer. Four rooms of this size can be found in an apartment with three bedrooms and a study, in a house with four children's and guest rooms, in a practice with four treatment rooms, or in a small hotel. The four indoor units are identical, with 18 dB(A) on the lowest fan speed. For a larger main room, we offer other combinations; we check the design on an object-by-object basis.

How many indoor units are included in the delivery?

Four MSZ-AY25VGK indoor units with 2.5 kW each, four infrared remote controls, and the MXZ-4F72VF outdoor unit. Pipes, mounting material, and a console for the outdoor unit are not included.

Is a mounting set required for each indoor unit?

Yes, four. On the liquid side, all four connections are specified as 6 mm (1/4"); on the gas side, three connections are specified as 10 mm (3/8") and one as 12 mm (1/2"); the MSZ-AY25VGK indoor units have 10 mm. How the transition at the fourth connection is carried out is not stated on the page; the specialist company clarifies this during planning. The pipe material is not part of the offer.

How large and how heavy are the units?

Each of the four indoor units is specified as 798 x 299 x 245 mm and 10.5 kg. For the outdoor unit, 840 x 710 x 330 mm and 59 kg are listed in the data sheet. A floor console or a wall console designed for 59 kg is part of the planning; the specialist company makes the decision after inspection.

How loud is the system?

The indoor units are specified at 18 dB(A) on the low and 36 dB(A) on the high fan speed, all four the same. The outdoor unit is specified at 48 dB(A) in cooling and 54 dB(A) in heating operation. The page does not state a sound power level. Each indoor unit has a night mode that reduces fan speed and capacity.

What filters does the indoor unit have?

According to the manufacturer, each indoor unit is equipped with an air purification filter with silver ion coating and an integrated V-Blocking filter. A Quad Connect plasma filter is mentioned as an optional accessory and is not included. With four indoor units, four sets of filters are required for maintenance.

How far apart can the indoor and outdoor units be?

The maximum total pipe length, the length per indoor unit, and the maximum height difference are not stated on this page; we will provide these values upon request. Four pipe routes converge at the outdoor unit, so its installation space for four rooms must be determined early.

Can I heat with the system in winter?

Yes. Heating operation is rated for outdoor temperatures from minus 15 to plus 24 °C, and cooling operation from minus 10 to plus 46 °C. When heating, the set is rated in class A+ on the A+++ to D scale, with a SCOP of 4.07; the outdoor unit heats with 8.6 kW, each indoor unit with 3.2 kW. The i-save function keeps a reduced temperature ready, for example for the night, and recalls it via a button. Whether four rooms can be heated with this system alone, we check upon request.

Can I install the air conditioner myself?

No. Installation and commissioning must be carried out by a certified specialist company. Four refrigerant lines, four condensate drains, an outdoor unit weighing 59 kg, and the electrical supply line must be planned for.