Slide Two
Slide Two


Information about assembly and installation

Installation of residential-and-public and semi-industrial series systems (PRANA 150, PRANA 200G, PRANA 200С)

The system is mounted in the upper part of the wall adjoining the outside. For that propose a hole of the appropriate diameter should be made, subject to the make:

  • «PRANA 150» (residential-and-public) – a hole with the diameter of 165 mm, at least;
  • «PRANA 200G» (residential-and-public) – a hole with the diameter of 200 mm, at least;
  • «PRANA 200C» (semi-industrial ) – a hole with the diameter of 220 mm, at least;
  • The operating module is installed in the wall hole with the foam installation or other sealant. Thus, the entire operating module is hidden inside the wall body, only the ventilation grids are seen: one inside the premise, another on the facade. The through hole should be a slope of 3-5 degrees towards the outside. To ensure normal operation of the ventilation system, the air intake duct (outside) should project beyond the wall boundary for 5 cm at least.

    The length of the operating module should correspond to the thickness of the wall in which the installation will be carried out.

Why there is only one PRANA recuperator is enough for one premises, while the reverse units should be always installed in pairs?

Prana Recuperator, unlike the reverse ventilators, provides simultaneous inflow and exhaust, while the air flows in the ventilation system are not mixed. This is one of the main features distinguishing Prana ventilation system from the reverse ventilators. After all, reverse ventilators work alternately for the supply and exhaust. Therefore, for their proper operation one should install two such simultaneous installations.

Let us analyse some distinctive aspects of reverse units and the PRANA heat exchanger operation.

Due to such proportional distribution of supply air flow and exhaust air flow, it is possible to prevent undesirable and dangerous reverse thrust. Fresh air can limit the manifestation and spread of prolific odours and smells from the kitchen and bathroom throughout the apartment or house. However, the real threat to one’s life is involved with the products of combustion, which are not removed via exhaust channels, but are leaking into the living space. Carbon monoxide poisoning is the main threat to posed by unbalanced ventilation system.

Particularly for this reason that reverse ventilators should be installed in pairs, when one unit is working to exhaust, the second compensates it with supply. Ignoring this recommendation of designers and manufacturers may lead to irreversible consequences. The first reverse inverter units, developed by German engineers, were even sold as a twin set only. Where Prana recuperator is designed for operation as single unit operating in the full-fledged manner.

In regard to the PC (performance coefficient) we should also consider the fundamental differences as well. Since PRANA recuperator constantly and simultaneously manages two oppositely directed air flows, it demonstrates consistently high efficiency when operated in the selected performance mode.

While the PC for reverse units is specified by the manufacturers at the peak moment of the heat exchanger. With each next second following the peak moment the heat exchanger, and consequently the inflow air becomes cooler.

Installation industrial series systems (PRANA 250, PRANA 340А, PRANA 340S)

The ventilation modules of the industrial series earmarked for free placement inside a premise (Prana-250 or Prana-340S), are mounted to the load bearing surface using collars or hangers. The supply and exhaust air ducts are connected to the ventilation system, subject to the ventilation system design.

  • «PRANA 340A» (industrial) – a hole with the diameter of 350 mm;
  • «PRANA 340s» (industrial) – a hole with the diameter of 350 mm.

The operating module is installed in the hole with the foam installation or other sealant. To ensure normal operation of the ventilation system, the outlet duct (outside) should project beyond the wall boundary at such a distance as to ensure free inflow/exhaust through the ventilation duct placed on the body of the ventilation system. Against an order, the system may be equipped with outlets for inflow/exhaust ventilation channels indoors.

If the module is designed for wall mounting, a hole must be drilled through the wall of the corresponding diameter, with the inclination of 3-5 degrees outwards on the upper part of an external perimeter wall.

The module must be fixed inside the hole by means of foam or other types of sealants. To guarantee the correct operation of the Prana Controlled Mechanical Verification system, the terminals (air intake-intake point) must protrude from the wall by a few centimeters.

On request, we make ventilation systems with other technical specifications.

Connection to the electricity grid

Prana ventilation system is connected to the fixed grid with voltage of 220-230v and a frequency of 50Hz. The maximum system consumption varies from 6 to 310 W/h, depending on the make. 
The device is controlled by remote control unit or by the switch that regulates operation of the fans (switch on, switch off, adjust).

For connection to the electricity grid it is necessary to:

  • Connect the contact terminals 1 and 2 to the grid using a two-wire power cable with a cross-section of at least 0.75 mm. If the package includes a rheostat switch, it is connected to the power grid subsequently. 
  • Power up the system. 
  • Complete visual test inspection for fan operation. Prana recuperator ensures air circulation though operation of the two fans with capacity decline. In silent mode the minimum noise is 26dB.

Air exchange system – decentralised controlled mechanical ventilation with heat recovery (D-MVHR).

“PRANA (residential)": min – Supply 25m3 / hour, extraction 21m3 / hour; max – 135m3 / hour input, 125m3 / hour extraction.

“PRANA (semi industrial)": min – Supply 40m3 / hour, extraction 35m3 / hour; max – Supply 235m3 / hour, extraction 220m3 / hour

 Safety requirements

  • Protection against electric shock is determined by the type of protection that applies to devices in class II ISO 3.135.0-95.
  • UHL 4.2 ventilation system according to GOST 15.150-69.
  • The degree of protection against introduction of harmful substances and penetration of water: IP24.


– The controlled mechanical ventilation system can be connected to the mains only by a qualified electrician in compliance with applicable regulations.

– All installations and electrical connection works (services) are carried out only after disconnecting the product from the electrical outlet.

– Do not insert foreign objects into the ventilation system as they could block or damage the fan blades.

– The controlled mechanical ventilation system (ventilation system) must not be used in environments where the air contains aggressive substances or the temperature does not meet the parameters indicated.

some text