HRU-WALL-100-25 Single-Room Decentralised Heat Recovery Unit Instruction Manual
- June 12, 2024
- HRU-WALL
Table of Contents
HRU-WALL-100-25 Single-Room Decentralised Heat Recovery Unit Instruction Manual
Description
HRU-WALL is a single-room decentralized heat recovery unit for concealed
installation. The unit comes with a ceramic heat exchanger which boasts a
maximum heat recovery ratio of 82% (the nominal heat recovery ratio is η=74.3%
as per EN
13141-8:2011).
The energy-efficient EC fan changes the running direction every 70 seconds to
alternate between air supply and air exhaust. Low energy consumption and
extremely low operating noise make this heat recovery unit a recommended
solution for non-stop operation. The heat recovery unit has three speed levels
to choose from, depending on the size of the area and indoor demands.
HRU-WALL-100-25 provides a sufficient air change level in areas up to 19m2.
HRU-WALL-150-60 provides a sufficient air change level in areas up to 45m2.
We recommend installing the devices in pairs.
Table dimensions
Dimensions
Design of the single-room heat recovery unit
Note!
Power cord is not included.
Other versions
Intended use
A system of single-duct decentralized heat recovery units offers the most efficient performance when two identical units are operated in two areas located near one another and connected to a single, common speed controller — HRU-WALL-CONTR-I (or any three-position control switch). This installation configuration allows synchronizing the alternating air flow direction of both units to have one extract air while the other supplies air. An external sensor (which senses relative air humidity or CO2 level) can be connected in parallel to control the heat recovery system (to increase fan speed if required).
Example temperature values for the 2nd air supply speed
- Supply air temperature measured at the 2nd air supply speed
How to order
Standard version with metal external hood
HRU-WALL-100-25 / HRU-WALL-150-60
Version with plastic external grille
HRU-WALL-100-25-PEG / HRU-WALL-150-60-PEG
Version with metal hood, painted in any RAL – provide the
RAL colour with an order
HRU-WALL-…-..-PEG + HRU-WALL-USUA-…-RAL
Version with window reveal hidden intake-exhuast
HRU-WALL-150-60-PEG +
HRU-WALL-WREV-150 (flat duct) +
HRU-WALL-WREV-FRAME (mounting frame) +
HRU-WALL-WREV-GRILL (grille)
Controller
Energy class
Technical specifications
Air efficiency measured as per ISO 5801:2008 Heat recovery efficiency as per EN 13141-8:2011 Sound level measured as per ISO 3746:2010