ATREA DUPLEX 250 Easy User Manual

D U P L E X E A S Y
Compact ventilation units
with heat recovery and EC fans
Residential ventilation and heating – issue 01/2016
Intended use
The new heat recovery units DUPLEX Easy are supplied in
three sizes:
=
DUPLEX 250 Easy
=
DUPLEX 300 Easy
=
DUPLEX 400 Easy
The units are intended for the comfort ventilation of all types of
residential and civil premises. They are particularly suitable for
low-energy and passive houses and flats in apartment buildings
with a decentralized ventilation system.
General description
The casing of the unit is made of environmentally friendly EPP
(expanded polypropylene), which is also characterized
byminimal moisture absorption and stability over a wide range
of temperatures. The basic version of DUPLEX Easy unit
consist of EPP housing, counter-flow heat exchanger made
ofplastic (efficiency up to 93 %), two free wheel type fans with
electronic EC control, G4 (optionally F7) supply and exhaust air
filters upstream the heat recovery exchanger. Depending the
type oncontrol system, the unit can be equipped with several
different functions and accessories (see the chart on page 4).
The Construction of the unit provides high variability, and the
same unit can be installed in 5 different positions (2 floor-
standing, 2underceiling and 1 floor-standing flat). Condensate
outlets on DUPLEX Easy are ready for all possible mounting
positions. Connecting ports are of a circular type for flexible
orrigid ducts with thermal bridging reduction.
Advantages of DUPLEX Easy units
=
High efficient EC fans
=
High heat recovery efficiency of the counter flow heat
exchanger
=
Great thermal and mechanical parameters of the housing
=
Very flat unit (280 mm) suitable for underceiling
installation
=
An option of the mirror-wise change of the right hand /
left hand side position
=
Light weight of the unit
=
Ease of filter changing
=
Frost protection (optionally built-in)
=
Bypass with actuator (optionally built-in)
=
Four types of control systems (see page 4)
C

ounter-flow heat exchanger
with efficiency up to 93 %

EC fans

Bypass damper with actuator

Air filters G4 or F7

Circular port

EPP housing
1
2
3
4
5
6
touch screen
controller CPA (CS2)
2
2
6
3
1
4
5
5
5
5
4
controller CPB (CS1)
alter.
A
DUPLEX Easy
R E S I D E N T I A L V E N T I L A T I O N & H E A T I N G
ATREA s.r.o., Čs. armády 32
Fax: +420 483 368 112
w w w . a t r e a . e u
E-mail: atrea@atrea.eu
Tel.: +420 483 368 111
Czech Republic
466 05 Jablonec n. Nisou

ATREA DUPLEX 250 Easy Specifications

General

Brand	ATREA
Model	DUPLEX 250 Easy
Category	Fan
Language	English

Summary

DUPLEX Easy Product Overview and Features

Intended Use

Defines the application scope for DUPLEX Easy units in residential and civil premises, particularly low-energy and passive houses.

General Description

Details the unit's construction, materials (EPP), heat exchanger efficiency, fans, filters, and installation flexibility.

Advantages of DUPLEX Easy Units

Highlights key benefits including high efficiency EC fans, heat recovery, compact design, low weight, and ease of maintenance.

Technical Specifications and Performance

Performance Parameters

Presents pressure reserve curves for DUPLEX 250, 300, and 400 Easy models against volume flow rate.

Heat Recovery Efficiency

Illustrates heat recovery efficiency curves for DUPLEX Easy units based on volume flow rate.

Technical Data Summary

Provides key technical data for DUPLEX Easy models, including airflow, efficiency, power consumption, dimensions, and filters.

Acoustic Performance

Details acoustic power and pressure levels for DUPLEX Easy units at different working points and distances.

Dimensional Diagram

Shows the physical dimensions and condensate drain port locations for DUPLEX Easy units.

Installation and Mounting

Mounting Positions

Illustrates the three versatile mounting positions: floor-standing, underceiling, and floor-standing flat.

Underceiling Installation

Specifies requirements for installing DUPLEX Easy units in suspended ceilings, including minimum void height.

Condensate Drainage

Explains condensate formation during heat recovery and requirements for proper drainage via sewer system.

Control Systems and Accessories

Control Systems Summary

Outlines DUPLEX Easy control system options: 'Without control system', 'CS1', 'CS2' (touch screen), and 'RD5' (web server).

Electric Heaters EPO-PTC

Describes the use and technical specifications of EPO-PTC electric heaters for preheating or reheating air.

Optional Accessories

Details optional accessories like the SK cover for improved acoustic performance.