Utek Reversus 2

Documentation
Utek Reversus 1-2-3 – Accessory Catalogue
Utek Reversus EVO-PH – Controller Manual
Utek Reversus 1-2-3 – Datasheet
Utek Reversus 1-2-3 – Manual

Description

The Reversus unit from Utek Italy are highly developed MHRV units. With Utek’s commercial background these units are built to perform and last. Its excellent pressure performance makes the unit suitable for large houses and commercial spaces with space for vertical installation.

Highlights

• High-efficiency counterflow heat exchanger
• EC-fans, pressure or flow controlled
• Touch-screen Controller
• Optional ventilation on demand (CO2, RH, VOC)
• Summer By-pass
• Top or bottom duct connection
• Optional with hydronic Post-Heater/Cooler
• High-grade F7 filter for supply air (G4 for exhaust air)
• Meets G4 and Healthy Home Standard
• 2-year warranty

Typical Application

• Domestic: Family houses with attic space
• Commercial: Office space, training rooms
• Includes dedicated bathroom, kitchen and laundry extraction

Performance

• Airflow: 510 m³/h (max.)
• Pressure: 520 Pa (max.)
• Example:
  Duty point: 420m³/h @ 280Pa
  House: 420m² with 2.6m ceiling -> 0.67 air changes per hour

Versions

Reversus 2

• BP EVOD-PH-IP SV
  MHRV unit without heater
• BP EVOD-PH-IP Pre-Heater SV
  MHRV unit with electric Pre-Heater to prevent heat-exchanger from frosting. Required for colder regions with winter frost.
• BP EVOD-PH-IP SV+HB+BAFC500-150
  MHRV unit with hydronic Post-Heater/Cooler (Coil Unit). Coil unit controlled by Reversus Controller. Requires hydronic heat pump connection.
• BP EVOD-PH-IP Pre-Heater SV+HB+BAFC500-150
  Combination of above Heaters: MHRV unit with electric Pre-Heater and hydronic Post-Heater/Cooler.

In the Box

• MHRV Unit
• Touchscreen Controller
• Wall-mounting brackets
• User manual

Typically required for wall installation

• Tools and consumables (e.g. duct tape and screws)
• Indoor Duct System (Recommended: BlauFast 75 or 90)
• Ducting to outside (Recommended: EPP 150mm)
• Outdoor grill/ Trade seal*

*Check with local council for acceptability

Further Information

PERFORMANCE
The Reversus 2 is equipped with a counter-flow heat exchanger with up to 95% efficiency and speed-controllable EC fans (centrifugal, backward curved) for ventilation on demand operation. The summer bypass option allows free cooling in the summer, when the house is warmer than the air outside.

STRUCTURE
The Reversus 2 is manufactured using a self-supporting structure in 23 mm thick sandwich panels, insulated in polyurethane foam. The external part of the structure is manufactured in plastic-filmed sheet metal in grey. Inside, the Reversus 2 uses expanded polypropylene, that ensures a high level of thermal insulation between air flows.

FILTER
The Reversus 2 is using a F7 filter (PM2,5 filtration of 70%) for the renewed air flow and a G4 for the extraction air flow to keep the ducting and heat-exchanger clean.

Access to the filters is easy thanks to the two specific openings on the front panel. The unit is also available with an enthalpy heat exchanger to allow the recovering of sensible and latent energy from the air for the cold and dry regions in New Zealand.

CONNECTION
The Reversus 2 is for installation inside buildings with an ambient temperature between 15°C and 45°C. It can be installed on a wall with connections for renewal air and expulsion air on the top and for connections to supply and extraction ducts you can choose to use the connections available on the top or bottom of the unit (or both).

CONTROLS
The REVERSUS is supplied with a coloured HD touch display, which can be wall-mounted and gives you intuitive viewing of the working status of the unit and allows precise adjustment of ventilation, also through a weekly time schedule.

The controller manages automatically the summer bypass, prevents frosting of the heat exchanger and warns the user of the need to replace the filters. With its pressure sensors the unit ensures always a balanced ventilation, even if the filters start to build up back-pressure.

The unit’s control board allows to connect an external switch for boost function and is ready for the integration in a home automation system (Modbus protocol with Ethernet connection). The implemented webserver allows interaction with the machine, even with an internet browser of a device connected (also from remote).

HEATING & COOLING
The Reversus can be ducted to a pre and post heater:

Pre-Heater
The electrical pre-heater of the Reversus if mainly to keep the heat-exchanger ice-free in the colder regions of the country. It also helps to make up for the heat/loss due to ventilation. Once connected, it is fully controlled by the Reversus unit.

Post-Heater/Cooler
The post-heater/cooler is a hydronic Coil Unit which can be ducted to the Reversus unit. Once connected, it is fully controlled by the Reversus unit. The coil unit requires hot/cold water for its operation, which can be supplied by a hydronic heat-pump. The Coil Unit is capable of delivering a heating/ cooling performance of up to 7.6kW.