This website uses cookies. Find out why they are used read our privacy policy. x
By browsing this website you agree to use cookie files, in accordance with the current browser settings.

Energy recovery ventilators (ERVs) HRU-ERGO

Photo of product family: Energy recovery ventilators (ERVs) HRU-ERGO

Heat recovery ventilation enables the exchange of air in rooms without the risk of contamination and odors penetrating into the supply air. The main task of the heat recovery ventilation system is to provide the house with fresh, filtered air heated by the exhaust air and remove (extract) stale, "polluted" air.

What is an energy recovery ventilator?

Energy recovery units are not only characterized by heat recovery function, thanks to the advanced technology of the enthalpy (counterflow) exchanger they recover heat and moisture from the air

The spacing between the cellulose fibers allows free passage of water vapour molecules. Thus, larger molecules, like those of odours, cannot pass through the heat exchanger. This prevents the contamination of the fresh air supplied indoors. Moreover, the energy efficiency of heat recovery units reaches (depending on the model) from 250 to 1000 m3/h.

What's the difference between an MVHR unit and an energy recovery unit (ERV)?

Instead of a standard heat exchanger, an enthalpy exchanger is used, which transforms the unit into an Energy Recovery Ventilation (ERV) system, as opposed to a standard Heat Recovery Ventilation (HRV) system. Meaning both thermal and latent energy from the stale air is extracted from wet rooms. 

What is an enthalpy exchanger?

An enthalpy exchanger is an air-to-air heat exchanger that additionally transfers moisture from one stream to another. The so-called latent energy, which reduces the energy demand for air conditioning.

Who is energy recovery ventilation for?

Energy recovery ventilators are recommended for cold and warm climates. In moderate climates, the client can choose between heat and enthalpy exchangers, taking into account its advantages. At the design stage, it is difficult to determine whether there will be a problem with too dry air, often the decision to buy an enthalpy exchanger is made after 1-2 years of using the heat recovery system.

Advantages of an energy recovery ventilator

  • enhancing the indoor air quality: in winter (when the outdoor air is dry), they will ensure a comfortable level of indoor humidity (40-60%). During the summer, it will lower the relative humidity of the supplied air.
  • latent energy transfer
  • less condensate on the heat exchanger
  • less chance of icing of the plate exchanger
  • lower defrost start temperature
Energy recovery ventilators (ERVs) HRU-ERGO - Products range
Miniature picture Product code Name of product Files to download
Photo of product Heat and energy recovery ventilators with enthalpy HRU-ERGO

Heat and energy recovery ventilators with enthalpy


The HRU-ERGO energy recovery ventilator is a suspended unit with an extremely efficient counter-flow heat exchanger.

The heat exchanger is made from plastic and processed cellulose which has a high water vapour permeability ratio, good airtightness, and good resistance to ageing.

The spacing between the cellulose fibres allows free passage of water vapour molecules. Larger molecules, like those of odours, cannot pass through the heat exchanger.

This prevents the contamination of the fresh air supplied indoors. The heat recovery ventilators are available in an output range from 250 m3/h to 1000 m3/h.

A standard HRU-ERGO energy recovery ventilator features 10-speed energy-efficient fans, automatic air bypass, defrosting mode (based on a fan speed control algorithm), 2 air filters, and steel duct connections.

Optional accessories include:

  • the HDE-CO electric heater
  • HDW water heater,
  • the HRU-CONTR-TPAD touch-screen controller
  • CO2 and air humidity sensors.
Heat and energy recovery ventilators with enthalpy
Photo of product Touch-screen controller for HRU-ERGO HRU-CONTR-TPAD

Touch-screen controller for HRU-ERGO


The HRU-CONTR-TPAD touch-screen controller is designed
for operation of heat recovery ventilators. The intuitive
software interface and extensive functionalities enable easy
management of HRU-ERGO heat recovery ventilators.

Its modern design will seamlessly match every energy-efficient
home interior of today.

Touch-screen controller for HRU-ERGO
Photo of product Control panels for heat recovery ventilator HRU-ERGO
HRU-CONTR Control panels for heat recovery ventilator HRU-ERGO
Photo of product Counter-flow heat exchanger for heat recovery ventilators HRE-ERGO

Counter-flow heat exchanger for heat recovery ventilators


The HRE-ERGO counter-flow heat exchanger is intended for
the HRU-ERGO heat recovery ventilators. The heat exchanger
is made with a paper material which features a high water
vapour permeability, good air tightness, and good resistance
to ageing.

The spacing between the cellulose fibres in the material allows
free passage of water vapour molecules. Larger molecules, like
those of odours, cannot pass through the heat exchanger. This
prevents the contamination of the fresh air supplied indoors.

Counter-flow heat exchanger for heat recovery ventilators
Photo of product Electric duct heater HDE-CO

Electric duct heater


HDE-CO electric duct heaters can be used as optional heaters for the HRU-ERGO energy recovery unit. Depending on the functions of heaters in the ventilation system, duct heaters can be divided into:

  • preliminary
  • secondary

A preliminary heater (preheater) is installed on the exhaust duct of HRU (fresh air from outside) and it is used to preheat the air supplied to the heat recovery unit.

The preliminary heater is fitted to prevent freezing of the heat exchanger at extremely low outside temperatures and it does not affect the temperature in the room. The standard HRU-ERGO unit has an automatic frost protection function, which protects from freezing by periodic altering of fans’ speed.

It is recommended to use a heater with one contactor type HDE-CO1 or with two contactors type HDE-C02. A secondary heater is installed on the supply air duct (fresh supply air to the room) and it is used for additional heating of the supply air temperature. After connecting the heater to the HRU-ERGO unit we are able to task the temperature in the room when we feel that thermal recovery alone is not enough for our comfort. We recommend a duct heater HDE-CO2 with two contactors.

Electric duct heater
REKUPERACJA
PROJEKTOWANIE
`