ATREA DUPLEX RA5 - User Manual

Questions and Answers

S
shernandezAug 7, 2025
How to troubleshoot ATREA DUPLEX RA5 Fan when it cannot be started?
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  nbartonAug 7, 2025
  If your ATREA Fan won't start, first ensure it's properly connected to the power supply by checking and switching on the upstream safety circuit breakers. If the unit is connected to power but still not starting, it could be blocked by an external input such as a fire damper. In this case, check the external input and contact a service technician if necessary. If these steps don't resolve the issue, disconnect the ATREA Fan from the power supply and contact a service technician.
A
Adam BrayAug 15, 2025
Why is my ATREA DUPLEX RA5 Fan not heating or heating insufficiently?
- E
  erik02Aug 16, 2025
  If your ATREA Fan isn't heating adequately, first, check if the electric heater is properly connected to the power supply by switching on the upstream safety circuit breakers. If it is correctly connected, the electric heater thermal protection might have been triggered. Wait one hour to see if the fault clears. If not, press the RESET button on the electric heater. If the issue persists, or reappears, contact a service technician. Also, consider that insufficient heating may be due to the heater's designed capacity.
M
Molly AcevedoAug 23, 2025
What to do if ATREA Fan is not supplying enough air?
- P
  Pamela JonesAug 23, 2025
  If your ATREA Fan isn't providing enough air, the filters might be clogged. Disconnect the unit from the power supply and replace the filter mat or cassette. If the unit has been running for over four years, clean the heat recovery exchanger. Also, check for any mechanical obstructions at the fresh air intake or supply air outlet points. Remove any obstacles and visually inspect the dampers to ensure they open correctly. If the problem persists after checking these, disconnect the ATREA Fan from the power supply and contact a service technician.
S
Sherri HickmanAug 30, 2025
How to stop water from dripping from ATREA Fan?
- V
  Vanessa BaldwinAug 30, 2025
  If water is dripping from your ATREA Fan, it could be due to several reasons. First, disconnect the unit from the power supply. Then, check if the condensate drain line trap is sufficiently primed with water and add water if necessary. If that's not the issue, the condensate drain line might be clogged; clean it, including the trap. A compromised seal could also be the cause (potentially accompanied by a whistling sound); replace the seal. Alternatively, the condensate drain seal or line might be damaged; reseal the condensate drain. If none of these steps resolve the dripping, disconnect the ATREA Fan from the power supply and contact a service technician.

Summary

1. General Information and Glossary

1.1 Sections of the Manual

Lists the main sections of the manual for easy navigation.

1.3 Introduction to DUPLEX R5 Units

1.4 Description of the Unit

1.5 Abbreviations and Marking

1.6 Important Information and Safety

1.7 Intended Scope of Application

2. Supply, Storage, and Transportation

2.1 Storage and Transportation

Outlines proper procedures for storing and transporting the unit to prevent damage.

2.2 Scope of Supply

Lists the standard components and accessories included with the DUPLEX R5 unit.

2.3 Mandatory Accessories

2.4 Optional Accessories

2.41 Integrated Heating or Cooling Coils

Details optional integrated coils for heating and cooling supply air.

2.42 Other Accessories

Lists other optional accessories like controllers and dampers.

2.43 Selecting a Suitable Air Conditioner

Guidance on choosing compatible air conditioners for DUPLEX R5 units.

3. Description and Technical Data

3.1 Technical Parameters

Lists key technical specifications for DUPLEX RA5, RB5, and RK5 units.

3.2 Description of Main Components

3.21 RA5 Unit Components

Illustrates and describes the main components of the DUPLEX RA5 model.

3.22 RK5 Unit Components

3.23 RB5 Unit Components

3.3 RA5 and RK5 Configuration Options

3.4 RB5 Optional Configurations

3.5 Air Filter Description

4. Unit Assembly and Installation

4.1 Installation of R5 Units

Provides detailed instructions for installing the DUPLEX R5 units on site.

4.2 Fitting a Reducer in RB5 Units

4.3 Changing Recirculated Air Fan Outlet Position (RB5)

4.4 Connecting the Condensate Drain

4.41 General Condensate Drain Arrangement

Explains the standard setup and requirements for condensate drains.

4.42 Condensate Drain Line Connection

4.5 Wiring and Cable Entry Point

4.6-4.9 Optional Coil and Heater Connections

4.10 Installing the Zone Damper

4.11 Installing Controllers

4.111 CP Touch Controller Installation

5. Control System and Wiring

5.1 RD5 Control System with CP Touch

Explains the RD5 control system and its integration with the CP Touch controller.

5.11 Connecting the Controller to the Unit

Guides on wiring the controller to the unit for proper operation.

5.12 Starting the Controller Display

5.13 Controller Interface Symbols

5.14-5.18 Control Screen Elements

5.19 Unit Operating Modes

5.110 List of Operating Modes

Provides a list of available operating modes and their applications.

5.111-5.116 Controller Settings Overview

5.111 Temperature and Zone Control

Sets and views temperature demand and ventilation zones.

5.113-5.115 User, Parameters, and Control Modes

Adjusts user settings, parameters, and selects control modes.

5.116 HS;NHS Switching

Sets heating/non-heating seasons and automatic switching.

5.117-5.124 Seasonal and Hysteresis Settings

5.117 HS;NHS Temperature & Current Season

Sets auto season switching temp and indicates current season.

5.119-5.121 Input Blocking and Control Settings

Manages input blocking based on season and control settings.

5.122-5.124 Hysteresis and Holiday Settings

Configures hysteresis for heating/cooling and bank holidays.

5.125-5.126 Holiday and Party Modes

5.127 Setting the Weekly Program

5.128 Copying Settings Between Days

5.129-5.132 Network, Text, Display, and Time Settings

5.129 Network Configuration

Configures network parameters like IP address and DHCP.

5.130 Text and Display Settings

Adjusts unit texts and display parameters like backlight.

5.132 Time Zone Setting

Sets the time zone according to the unit's geographical location.

5.133-5.136 Time, SW Info, Filter, and Alarms

5.133 Daylight Saving Time

Option to switch automatically between daylight saving and standard time.

5.134 SW Information & 5.135 Filter Indication

Displays SW version and filter replacement notifications.

5.136 Table of Alarms and Notifications

Lists messages for irregular or unexpected events in the AHU system.

5.137-5.138 Other Control Functions

5.2 Web Browser Control

5.3 Unit Commissioning

5.31 Mains Power Connection

Details mains power connection procedures by qualified personnel.

5.32 Protection and Power Supply

Specifies required protection and mains power supply connection.

5.33 Sensor Connection and Installation

Procedures for connecting and installing unit sensors.

5.4 Warranty Information

6. Maintenance and Service

6.1 General Maintenance and Service

Overview of general maintenance tasks, safety, and servicing.

6.2 Air Filter Replacement

6.21 ODA Pre-filter Cleaning

Procedure for cleaning and replacing ODA pre-filters made of expanded metal.

6.21 ODA;ETA Fabric Filter Maintenance

Procedure for cleaning and replacing ODA and ETA fabric filters.

6.21 RCA Main Fabric Filter Replacement

Filter Cloth G4 Guide

Filter Cloth G7 Guide

6.3 Heat Exchanger Cleaning

6.31 RB5 Heat Exchanger Removal

Steps to slide out the heat recovery exchanger from RB5 units.

6.32 RA5;RK5 Heat Exchanger Removal

Steps to slide out the heat recovery exchanger from RA5/RK5 units.

6.4 Controller Cleaning

6.5 Minor Unit Maintenance

6.6 Spare Parts and Repairs

6.7 Breakdowns and Fire Safety

7. Faults and Troubleshooting

7.1 Troubleshooting Guide

Lists common faults, their possible causes, and troubleshooting steps.

8. Appendices

8.1 Product Data Sheet

Presents the technical data sheet with specifications for DUPLEX units.

8.2 RD5 Internal Wiring Diagram

8.3 RD5 Optional Accessory Wiring

ATREA DUPLEX RA5 Specifications

General

Brand	ATREA
Model	DUPLEX RA5
Category	Fan
Language	English

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