HRU-WALL-PEG Single Room Decentralised Heat Recovery Unit Owner’s Manual
- June 15, 2024
- HRU-WALL
Table of Contents
Single-room decentralized heat recovery unit
Owner’s Manual
Description
HRU-WALL-PEG 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-PEG provides a sufficient air change level in areas up to
19m².
HRU-WALL-150-60-PEG provides a sufficient air change level in areas up to
45m².
We recommend installing the devices in pairs.
Product code example
Dimensions
Table dimensions
| HRU-WALL-100-25-PEG
[mm]| HRU-WALL-150-60-PEG
[mm]| HRU-WALL-USUA-100
[mm]| HRU-WALL-USUA-150
[mm]
---|---|---|---|---
Dimension A| 164| 218| –| –
Dimension B| 46| 51| –| –
Dimension C| 300-570| 300-570| –| –
Dimension D| 110| 159| –| –
Dimension E| 164| 218| 205| 255
Dimension F| 164| 218| 205| 255
Dimension G| 20| 20| 100| 130
Construction
Front cover
Made of high quality, impact and UV-resistant ABS.
Energy efficient EC fan
Due to its advance design and technology it consumes only 2.6W of power at its
peak (for HRU-WALL -PEG-100-25) or only 3.5W (for HRU-WALL-RC -PEG-100-25).
Unique design winglet type impeller, providing enhanced aerodynamic
properties, low noise and increased efficiency. High efficient reversible EC
motor with integral thermal protection, mounted on sealed for life high
quality ball bearings. Designed for continuous reversible running.
Telescopic inner pipe
Regulation: 300-570 mm. High quality material, impact and UV-resistant, made
from 100% recycled ABS, black colour.
A cerami exchanger is placed in the pipe.
Heat exchanger
The ceramic, regenerative heat exchanger is a central and most important part
of the unit. It has a honeycomb structure for high thermal efficiency and
double-sided air filters (HRU-WALL-RC-PEG).
Outer grille
External aluminium cover HRU-WALL-USUA painted in RAL 9010 colour or HRU-WALL-
USUA-…-RAL painted in any RAL colour Outer grille (optional) External steel
cover HRU-WALL-USUA or HRU-WALL-USUA…-RAL painted RAL with acoustic lining and
insect screen. Standard RAL 9010.
Remote controller / controller
The unit is supplied with an infrared remote controller as standard (HRU-WALL-
RC-PEG), as well as its support base which can be wall mounted. A magnet keeps
the controller attached to the base. The controller is equipped with an LCD
display to visualise the setting to be transferred to the unit.
Controller with 3 two-position switches, surface / flush mounted for HRU-WALL-
PEG (option).
Other versions
HRU-WALL-USUA-100 / HRU-WALL-USUA-150 additional external hood HRU-WALL-USUA
painted in RAL 9010 colour
HRU-WALL-USUA-100-RAL / HRU-WALL-USUA-150-RAL An external hood, painted in any RAL colour
HRU-WALL-WREV-150 + HRU-WALL-WREV-FRAME + HRU-WALL-WREV-GRILL
a window reveal module for intake and exhaust applications
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
Indoor temp.
[˚C]| Outdoor temp.
[˚C]| Air supply temp.
**[˚C]*
---|---|---
HRU-WALL-150| HRU-WALL-100**
20| 0| 17.4| 16.4
20| -10| 16.1| 14.6
20| -20| 14.8| 12.8
- Supply air temperature measured at the 2nd air supply speed
How to order
Standard version with plastic external grille
HRU-WALL-100-25-PEG / HRU-WALL-150-60-PEG
Version with metal hood, painted in RAL 9010
HRU-WALL-…-..-PEG + HRU-WALL-USUA-…
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
HRU-WALL-CONTR-I
flush-mounted controller
HRU-WALL-CONTR
surface controller
Note!
Controller in not included in the set, sold separately
Connection of the HRU-WALL-CONTR-I controller
Connection of 2 HRU-WALL
units with a single HRU-WALL-CONTR-I controller
Energy class
| Model | Sound level [dB] | Air flow rate [m³ /h] | Energy class |
|---|---|---|---|
| HRU-WALL-100-25-PEG | 35 | 10/18/2025 | A |
| HRU-WALL-150-60-PEG | 38 | 20/40/60 | A |
Technical specifications
Type| Air flow rate [m³/h]| Power [W]| Sound pressure
[dB(A)] 3 m| Efficiency
[%]| Ambient temp.
[˚C]| Weight
[kg]
---|---|---|---|---|---|---
HRU-WALL-100-25-PEG| 10/18/2025| 1,2/1,7/2,6| 10/15/2029| 74| -20° +50°| 2.1
HRU-WALL-150-60-PEG| 20/40/60| 1,4/2,3/3,8| 10/18/2026| 74| -20° +50°| 4
HRU-WALL-100-25 + USUA| 10/18/2025| 1,2/1,7/2,6| 10/15/2029| 74| -20° +50°|
2.4
HRU-WALL-150-60 + USUA| 20/40/60| 1,4/2,3/3,8| 10/18/2026| 74| -20° +50°| 4.3
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
Supplier’s name or trade mark| ALNOR System Wentylacji| ALNOR System
Wentylacji
---|---|---
Model identifier| HRU-WALL-100-25-PEG| HRU-WALL-150-60-PEG
Specific energy consumption (SEC) [kWh/(m2.a)] (cold, average, warm)| -75,60|
-37,45| -15,59| -76,18| -38,03| -16,18
Energy class| A+| A| E| A+| A| E
Declared typology| Bidirectional| Bidirectional
Type of drive| Multi-speed| Multi-speed
Type of heat recovery system| Regenerative| Regenerative
Thermal efficiency1 [%]| 74| 74
Maximum flow rate [m3 /h]2| 25| 60
Maximum fans’ electric power input [W]| 2,6| 3,8
Sound power level LWA [dB(A)]| 35| 38
Reference flow rate [m³ /h³]| 17| 41
Reference pressure difference [Pa]4| 10| 10
SPI [W/m³ /h]5| 0,07| 0,05
Control factor| 1| 1
Declared maximum leakages 6| External: 1%
Internal: NA| External: 1%
Internal: NA
Mixing rate| –| –
Position and description of visual filter warning| NA| NA
Internet address for pre-/dis-assembly instructions| https://www.ventilation-
alnor.co.uk/| https://www.ventilation-alnor.co.uk/
The annual electricity consumption (AEC) [kWh/a]| 98| 98| 98| 74| 74| 74
The annual heating saved (AHS) [kWh/a]| 7804| 3989| 1804| 7804| 3989| 1804
1: According to EN 13141-7:2010
2: According to EN 13141-7:2010 with at pressure diference 100Pa
3: According to EN 13141-7:2010 at 70% of maximum flow at static pressure
diference 50P4: According to EN 13141-7:2010
5: According to EN 13141-7:2010 at reference point – 70% of maxiumum air flow
6: According to EN 13141-7:2010
ALNOR® ventilation systems
is a legally protected trademark and technical patent.
All rights reserved.