Q-Tech presents VIESSMANN invisible, ISH 2023 breakthrough.

A compact heating and ventilation system that enables optimal use of space in the home and allows for free interior layout of the building. The narrow unit houses a complete heating and ventilation system. The devices and system components are hidden behind individually selected decorative panels and remain invisible.

Valuable surface area.

Real estate prices are constantly rising. Every square meter of living space is becoming even more valuable. The new Viessmann Invisible heating and ventilation system offers an innovative solution that allows you to develop and utilize your valuable space optimally and organize it freely.

New space

A state-of-the-art heat pump, ventilation module with heat and moisture recovery, domestic hot water tank, and complete accessories: Viessmann Invisible integrates all these components into a compact system, thus creating space for new design concepts.

Plus, 1/3 more usable surface area.

Heating, cooling, and ventilation in a single, modular, and complete solution: the shallow depth and freedom of positioning allow you to create an additional third of usable space in an 11 m² room. See pages 14/15.

Invisible technology.

Efficiency can be discreet: perfectly coordinated Viessmann Invisible devices operate invisibly and inaudibly behind individually selected decorative surfaces.

Versatile application possibilities.

Take advantage of the innovative All-in-One solution from Viessmann for single-family homes up to 200 m²: the standardized and pre-configured components of Viessmann Invisible make it versatile and simplify the planning and design process.

Slim profile.

With a construction depth of only 275 mm, the system takes up very little space. The various module layout options—in-line, block, or corner—always allow for optimal integration into the building.

Individual surface finish.

You can choose between a version in a refined pearl white lacquer and a version for individual front finishes in the Manufactureline version.

Consistent independence

With the Viessmann Invisible system, you gain more than just freedom of organization. This system, supplemented with photovoltaics, reduces dependence on the grid and fluctuating energy prices.

Gain space, up to 1/3 more usable space: the laundry room of the future.

The example shows that in a utility and technical room with independent devices and connections, only a small usable area remains free. Its use is limited to washing machines and dryers. The Viessmann Invisible system, on the other hand, can create new space for a much larger usable area and two rows of cabinets with integrated appliances. For natural lighting and aesthetic surface finishing. Air distributors and lines are hidden in the false ceiling.

Manufacture, As individual as your projects.

Experience the freedom of choice when selecting the finish: you can choose the Basis version in a refined pearl white lacquer, or choose the Manufaktur version for individual front finishes selected by the investor. Wood, kitchen cabinet surfaces, or mirrors: when implementing such surfaces, you have maximum freedom of layout, and a stable base ensures secure installation. Please note that the Manufaktur design is intended for the use of material with a thickness of 16 mm.

Inside, a new generation of modular devices.

Compact and perfectly adapted to each other. The heat pump, hot water tank, and ventilation combine maximum efficiency with quiet and reliable operation.

HYDRAULIC MODULE | Vitocal 222-SI

Heating according to EN 14511 at A7/W35
- Nominal heat output: 6.8 kW, Power control: 2.6 to 9.0 kW
- Coefficient of performance (COP): 5.0
- Energy consumption: 1.36 kW
- Energy efficiency class: A+++

Cooling according to EN 14511 at A35/W18
- Nominal cooling capacity: 6.7 kW, Power control: 1.5 to 9.5 kW
- Energy efficiency ratio (EER): 5.1
- Energy consumption: 1.31 kW 

STORAGE MODULE

Stainless steel storage tank with feet for ceiling mounting

- Capacity: 250 l
- Heating: charging system via exchanger
- Maximum hot water consumption at 40°C outlet temperature, 53°C tank temperature and 10 l/min consumption: 330 l - Energy efficiency class profile (L, XL): A+
- Dimensions (width×height×depth): 1200×2100×280 mm
- Weight (empty): 200 kg (Weight to be inserted in 1 module 75 kg)

VENTILATION MODULE | Vitoair FSI

Enthalpy heat exchanger: no condensate drain needed.
Silencers integrated into the four air ducts.
Integrated anemometers to measure actual airflow

- Maximum flow rate: 300 m³/h (at 200 Pa external system resistance)
- Cross-flow enthalpy heat exchanger with moisture recovery.

OUTDOOR UNIT

Diamond Edge style casing in graphite with matching consoles
- Refrigerant: R32
- Outdoor module protection: 1 × B16A
- Sound power in night mode: 50 dB(A)
- Air temperature: -20 to 45 °C
- Dimensions (width×height×depth): 1,080 × 850 × 500 mm
- Weight: 95 kg

Advantages

• Home technology, piping, and installation integrated into a unique new system
• Maximizes usable space in new buildings
• Low operating costs thanks to the high COP of up to 5.0 at A7/W35
• Combined with Viessmann One Base and integrated Viessmann Energy Management, high overall system efficiency is achieved
• Optimal use of your own electricity from the PV system for maximum independence from the public grid.

5/3/2023.