Vaillant climaVAIR multi VAM1-050A2NO - outdoor multi-split unit 5.3 kW

Product detailed description

Vaillant climaVAIR multi VAM1-050A2NO - outdoor unit of a multi-split air conditioning system

VAM1-050A2NO is a standalone outdoor (compressor) unit from the climaVAIR multi series by German manufacturer Vaillant, intended for building a multi-split air conditioning system with a self-selected number and capacity of indoor units. The designation A2 in the unit's code means that up to 2 separately controlled indoor units can be connected to it - each room can therefore have its own thermostat, its own mode (cooling/heating/dehumidification/ventilation) and its own timer, but they share one common outdoor heat exchanger located on the facade, ground or roof of the building.

This unit is sold separately - it is intended for installation companies and investors who assemble the air conditioning system to order from individual components (instead of buying a pre-configured package/set), or who need to replace the outdoor unit of an existing climaVAIR multi multi-split system. Indoor units, refrigerant piping and other accessories must be purchased separately according to the specific configuration.

Technical specifications of VAM1-050A2NO

Note: dimensions and weight are approximate for some size classes (the manufacturer slightly adjusts them between production revisions) - exact dimensions for a specific unit can be found on the unit's type plate or in the current technical sheet from Vaillant.

How the multi-split system with unit VAM1-050A2NO works

Unlike a simple mono-split system (1 outdoor + 1 indoor unit), the multi-split outdoor unit VAM1-050A2NO allows connecting 2 indoor units at once via separate refrigerant circuits routed through distribution valves (so-called Y-branch or distribution box), which are part of the installation material, not the outdoor unit itself. Each indoor unit has its own expansion valve, so the performance to individual rooms is regulated independently - if the bedroom is set to a lower temperature than the living room, the compressor of the outdoor unit adjusts its speed (inverter control) to meet the sum of the current requirements of all connected indoor units at once, up to the limit of 2× indoor units, together up to approx. 5.8 kW cooling capacity.

The advantage of this arrangement is one outdoor unit instead of 2 separate ones - less space on the facade or ground, one electrical connection point for the compressor, and a more aesthetically pleasing exterior of the building. The disadvantage compared to separate mono-splits is that the sum of the currently required capacities of all indoor units must not exceed the maximum capacity of the outdoor unit - if, for example, all rooms require full capacity at once during extreme heat, the system will distribute the available capacity proportionally among them.

Typical use

The unit VAM1-050A2NO is most often used for air conditioning a living room with a kitchen and a smaller bedroom (together approx. 40-45 m²), where the investor wants to have a separate indoor unit with its own control in each room, but does not want multiple outdoor units on the facade or near the house. It is suitable for both single-family homes and for smaller businesses, offices, offices or apartments, where zonal temperature regulation is required.

When selecting indoor units for this outdoor unit, we recommend taking into account that the sum of the rated capacities of all connected indoor units may slightly exceed the rated capacity of the outdoor unit (a common practice with multi-splits, so-called "oversizing" in a reasonable manner), since it is unlikely that all rooms will require maximum capacity at the same time and at the same time. We recommend consulting the exact combination with an installation company or directly with Vaillant's technical support.

Compatible indoor units

It is possible to connect indoor wall-mounted units of the climaVAIR pro VAIB1 series (power classes 020, 025, 035, 050 and 065, i.e. 2.0 to 7.0 kW) to the unit VAM1-050A2NO, or other types of indoor units from Vaillant's multi-split system offering (cassette, ducted, parapet - according to the current manufacturer's offering and R32 refrigerant compatibility). We recommend checking the exact compatibility of individual types and the maximum number of units per port in the current combination table from Vaillant before ordering the complete set.

Installation and assembly

Mounting the outdoor unit VAM1-050A2NO requires a solid and level base (wall brackets or concrete pads for ground/roof installation), sufficient free space around the unit for air intake and exhaust (minimum clearances according to the manufacturer's installation instructions) and access for service. Connection to the indoor units is done using insulated copper refrigerant piping (see separate refrigerant piping products 1/4" and 1/2" in this category) and a communication/power cable.

After connecting the piping, a nitrogen pressure test is performed, the circuit is evacuated to remove air and moisture, and only then are the service valves opened and the system started. This part of the installation, as well as any possible refrigerant R32 topping up for longer piping runs beyond the standard length, must be carried out only by a company authorized to work with F-gases - this is a legal requirement, not just a manufacturer's recommendation.

The electrical connection of the outdoor unit VAM1-050A2NO is single-phase (230 V/50 Hz), the connection must be dimensioned according to the unit's rated current and the recommendations of the electrical installation designer - maximum operating current 11.0 A for cooling and heating, recommended fuse 16 A (according to the official technical sheet from Vaillant).

Operation, control and intelligent features

The outdoor unit VAM1-050A2NO operates with continuous inverter control of the compressor speed, allowing the system to adapt to the current thermal load instead of switching on and off in steps (which is typical for older on/off air conditioners). This results in quieter operation, more even room temperature and lower electricity consumption compared to comparable on/off units. Control is carried out at the level of individual indoor units (remote control, or app with Wi-Fi module for compatible indoor units) - the outdoor unit itself does not have its own user control.

The unit supports operation at low outdoor temperatures thanks to compressor protection and evaporator defrosting functions, so it can be used as an additional heat source (air-to-air heat pump) outside the main heating season, when it is not economical to start the central boiler or water heat pump.

Frequently asked questions

How many indoor units can I connect to the VAM1-050A2NO?

Up to 2 separately controlled indoor units, each with its own control and independent temperature setting.

Can I combine different indoor unit capacities on one outdoor unit?

Yes, this is a typical use of a multi-split system - choose a lower capacity for a smaller room (e.g. VAIB1-020WNI), and a higher one for a larger room (e.g. VAIB1-050WNI), within the limits of the outdoor unit.

Can the unit also heat, or only cool?

Yes, it is a two-way air-to-air heat pump - it can cool and heat depending on the selected mode on the indoor unit.

What refrigerant does the unit use?

R32, a modern refrigerant with a lower global warming potential (GWP) compared to older types such as R410A.

Is professional installation necessary?

Yes, connecting the refrigerant circuit, vacuuming and starting the system must be carried out only by a company authorized to work with refrigerants (F-gases).

What if I don't connect all the ports of the outdoor unit?

Unused ports must be professionally sealed/closed according to the installation instructions. The system works even with a smaller number of connected indoor units than the maximum.

Maintenance and service

The outdoor unit requires minimal regular maintenance - it is recommended to check the accessibility of the heat exchanger (remove dirt, leaves, pollen trapped on the fins), check the unit's mounting and the condition of electrical connections once or twice a year, and to have the tightness of the refrigerant circuit and the pressure in the system checked professionally once every 1-2 years. Regular service prolongs the life of the compressor and maintains the declared performance and energy efficiency.

Why choose VAM1-050A2NO

The outdoor unit VAM1-050A2NO combines the proven technology of the German manufacturer Vaillant (known mainly for heating technology) with the flexibility of a multi-split solution - the investor is not bound to a pre-defined set, but can customize the configuration precisely according to the number and size of rooms, or gradually add more indoor units up to the limit of 2 units. Selling individual components also allows for easy replacement of the outdoor unit during a service intervention without the need to change the functional indoor units.

Energy efficiency and operating costs

The inverter-controlled compressor of the outdoor unit VAM1-050A2NO modulates power smoothly instead of switching on at full power, which results in significantly lower electricity consumption during partial load (i.e. most of the operating time except the hottest days) compared to a comparable on/off air conditioning system. Approximately, for seasonal cooling of a household with a configuration connected to the VAM1-050A2NO unit, you can expect an annual consumption in the range of hundreds of kWh for cooling (the exact value depends on the number of operating hours, temperature difference and set temperature) - for example, an approximate estimate of around 1855 kWh per season at medium usage intensity, which is only an illustrative calculation, not a guaranteed value by the manufacturer.

Actual consumption mainly depends on the total load of all connected indoor units, the quality of building insulation, the set target temperature and the length of the operating season. When used for cooling in summer and for supplementary heating in spring and autumn, the investment in the VAM1-050A2NO unit usually pays off faster, as it partially replaces heating from more expensive sources during transitional periods.

Legislative aspects - work with refrigerant R32

Refrigerant R32 belongs to the group of fluorinated greenhouse gases (F-gases), which are subject to the EU regulation on F-gases. Any intervention in the refrigerant circuit of the VAM1-050A2NO unit - connecting the piping, vacuuming, adding or removing refrigerant, as well as service repairs - must be carried out only by a person and company with a valid certificate of professional competence for work with F-gases. In systems with a larger amount of refrigerant, there may also be a legal obligation for regular leak checks at specified intervals - the exact obligation and interval will be determined by the installation company according to the actual amount of refrigerant in the filled system.

Delivery and packaging

Due to the weight (35 kg (according to the Vaillant technical sheet)) and dimensions of the unit, this product is considered oversized and fragile - it is delivered by courier on pallets or in reinforced cardboard, not suitable for delivery to collection boxes/packet machines. When collecting the goods, we recommend checking the integrity of the packaging and, in case of visible damage, making a record directly with the courier company upon receipt.

Warranty

The outdoor unit VAM1-050A2NO is subject to the standard 2-year warranty by the manufacturer Vaillant from the date of sale to the end customer, provided that the installation and commissioning are carried out by a company with the appropriate authorization (installation by an amateur or unauthorized company may be a reason for rejection of any claim by the manufacturer). We recommend keeping the purchase receipt and the installation/commissioning protocol from the installation company.

Related products for this outdoor unit

For a complete installation with the VAM1-050A2NO unit, you will probably need: the corresponding number of indoor units climaVAIR pro VAIB1 (available in this category in power classes 2.0 to 7.0 kW), insulated refrigerant piping of appropriate diameters (1/4" and 1/2" - both available in this category), a mounting bracket for the outdoor unit and connecting/fixing material. The exact range of required materials is recommended to be specified by the installation company based on the installation site inspection.

Extended frequently asked questions

What does the designation A2 in the unit code mean?

The letter A with a number in the middle of the code (e.g. A2) indicates the number of ports, i.e. the maximum number of separately connectable indoor units for this particular outdoor unit.

Can I later purchase an additional indoor unit if I initially use fewer ports?

Yes, provided that all ports are not used during the initial installation, it is possible to run the line to the free port later and add another indoor unit, of course again only through a company authorized to work with refrigerants.

Is the noise level of the outdoor unit VAM1-050A2NO suitable for densely populated areas?

The sound power level in the range of approx. 62-68 dB(A) is comparable to standard air conditioning units of this power class - when installed on a façade, we recommend choosing a location taking into account adjacent living rooms and local noise limit regulations during nighttime hours.

Do I need a building permit to install the outdoor unit?

Mounting an air conditioning unit on the façade of a single-family house usually does not require a building permit, but may require notification or consent from the owners' association or building authority in some cases (e.g. in apartment buildings, in protected areas) - we recommend checking local requirements before installation.

Výkurovací kotol model X-2000

Výkurovací kotol X-2000 je vysokoúčinný zdroj tepla, ktorý je ideálny pre rodinné domy aj menšie bytové domy. Tento kotol ponúka výkon 20 - 25 kW a je vybavený pokročilou technológiou na reguláciu teploty a automatické čistenie spaľovacej komory.

• Výkon: 20 - 25 kW
• Účinnosť: až 95 %
• Palivo: zemný plyn
• Typ: kondenzačný kotol
• Dimenzia: 700 x 500 x 300 mm

Výkurovací kotol X-2000 je vyrobený z odolných materiálov a je navrhnutý tak, aby vydržal dlhé roky používania. Je tiež kompatibilný s rôznymi typmi vykurovacích systémov, vrátane podlahového vytopenia.

Hlavné výhody:

• Ekologický a úsporný
• Bezpečný a spoľahlivý
• Snadná inštalácia a obsluha
• Moderný dizajn

Pre viac informácií alebo objednávku kontaktujte náš servisný tím alebo navštívte náš web www.heatingproducts.com.