Intelligent Air Solutions - HRX-aQ Bluebrainbluebrain.polypipe.com/sites/default/files/hrx-aq_brochure_0.pdf · 2 Intelligent Air Solutions Intelligent Air Solutions 3 Quiet Compact

UniclassL7534

CI/SfB

(57) X

HRX-aQSB.1 May 2016

Intelligent Air Solutions

QUIET • COMPAC T • EFF IC IENT

£

Introducing Polypipe’s new and highly efficient Silavent HRX-aQ - the most compact and intelligent void mounted MVHR ceiling unit in the market. The HRX-aQ enables contractors to deliver quicker installation with minimum hassle.

www.bluebrain.co.uk Intelligent Air Solutions2 Intelligent Air Solutions www.bluebrain.co.uk 3

Quiet Compact Efficient

Backward curved EC fans, mounted in a high density EPP moulded body, ensures the quietest void mounted MVHR/ERV unit available; operating at a low of 24dB(A) in normal operation.

See pages 14 -15

24dB(A)Whisper quiet

From 199mm deep, the smallest Silavent MVHR footprint

SFP down to 0.66 W(l/s)HE up to 88%

Designed to be one of the smallest footprint MVHR/ERV units on the market, from 199mm in depth, the HRX-aQ allows for easy installation in the tightest of ceiling voids and utility cupboard spaces.

Extremely lightweight, weighing from just 7.9kg, the HRX-aQ mounts directly to a slab.

Encompassing offset 204x60mm duct connections, makes connection and duct crossover simple.

Simple to design in

Installation made easy

Space saving solution

See pages 10-13

Offering a range of efficient fan motors and advanced Polymer heat exchange options, the HRX-aQ delivers Specific Fan Powers (SPF’s) as low as 0.66 W(l/s) in a typical installation, with heat exchange efficiencies of up to 88%.

Integrated intelligent Bluebrain control options optimise the units functionality and performance, to lower Dwelling Emission Rates for a higher SAP rating.

Offering wireless and wired control options such as frost protection, temperature and humidity control, auto summer bypass and independent fan speed control, the Bluebrain controller boasts a full host of air quality and commissioning controls for improved indoor air comfort.

See pages 6-9

MANUFACTURED IN THE UK MANUFACTURED IN THE UK

Homes Hotels

Suitable applications

The HRX-aQ ticks all the boxes

Down to 199mm in depth, the HRX-aQ’s discreet profile makes it the perfect ventilation choice for a variety of residential solutions and at the lowest installed cost.

Offers the lowest installed cost!

Student Accommodation

Care Homes

Applications

Apartments Flats

Efficient Sound

Ultimate performance

Whilst the HRX-aQ is the most compact MVHR ceiling unit, its energy efficient performance has not been comprised.

Providing Specific Fan Powers as low as 0.66 W/(l/s) and a heat exchange efficiency up to 88%, the unit will efficiently lower Dwelling Emission Rates for a higher SAP rating.

Note: Specific Fan Power combined with heat exchange efficiency is how MVHR units are measured and used towards calculating overall system performance.

Code Bypass Kitchen + 1 wetroom Kitchen + 2 wetrooms

SFP W/(l/s) SFP W/(l/s)

AQH200-S 0.67 0.77

AQH200-B 0.74 0.83


SFP W/(l/s) SFP W/(l/s)

AQH240-S 0.68 0.73

AQH240-B 0.69 0.73


SFP W/(l/s) HE % SFP W/(l/s) HE %

AQH200-S 0.72 87 0.88 84

AQH200-B 0.75 83 0.95 81



AQH200-S 0.68 87 0.70 87

AQH200-B 0.70 83 0.73 83



AQH240-S 0.69 88 0.84 85

AQH240-B 0.69 86 0.84 83



AQH240-S 0.66 88 0.68 88

AQH240-B 0.66 86 0.68 86

200mm DEEP MODELS 240mm DEEP MODELS

TYPICAL INSTALLATION



PRODUCT CHARACTERISTICS DATABASE (SAP 2012)

PRODUCT CHARACTERISTICS DATABASE (SAP 2009)

Dimensional drawings

Weight: 7.9Kg (1.2st) Weight: 8.4 kg (1.3st)

AQH200 models AQH240 models

113819

49

66

210 210

15

2828

520

199

INTA

KE

EX

HA

US

T

EX

TRA

CT

SU

PP

LY

Measurements in mm

153819

49

66

210 210

15

2828

520

239

INTA

KE

EX

HA

US

T

EX

TRA

CT

SU

PP

LY

Measurements in mm


SOUND PERFORMANCE

CODES SPEED FLOW PRESSURE POWER POSITION SOUND POWER LEVELS SOUND CONTROL RATE (Pa) (W) dB re 1pW PRESSURE SETTING (l/s) (dB(A) @ 3m)

Test - Duty Points 63 125 250 500 1K 2K 4K 8K

AQH200-S & 99% 38 96 52 Breakout 46 55 54 62 53 44 41 34 44AQH200E-S 70% 27 47 22 Breakout 40 50 54 50 42 39 34 21 34

50% 21 28 15 Breakout * 46 53 43 38 37 31 12 30

33% 15 16 10 Breakout * 41 46 39 34 35 26 6 25

AQH200-B & 99% 37 83 52 Breakout 49 57 55 59 51 44 42 33 41AQH200E-B 70% 27 40 20 Breakout 43 49 55 53 41 36 32 21 35

50% 21 23 15 Breakout 48 44 53 46 36 30 24 11 30

33% 15 13 10 Breakout 46 40 47 40 32 27 17 3 24

AQH240-S & 99% 39 96 52 Breakout 45 54 53 60 53 44 41 32 42AQH240E-S 70% 27 65 21 Breakout 45 48 53 53 41 37 32 21 35

50% 21 34 14 Breakout 44 44 52 46 36 33 26 12 30

33% 15 19 10 Breakout 44 39 44 41 35 31 23 4 25

AQH240-B & 99% 39 96 52 Breakout 48 54 56 60 54 44 41 33 42AQH240E-B 70% 27 65 21 Breakout * 49 53 53 41 37 33 20 35

50% 21 34 14 Breakout * 42 51 45 36 34 26 10 29

33% 15 19 10 Breakout * * 48 39 33 32 20 2 25

Unit performanceBy selecting a ‘Total Heat’ exchanger, rather than a standard heat exchanger, the unit will become an Energy Recovery Ventilation (ERV) system. For ‘Total Heat’ exchanger performance figures, please email [email protected] information available on page 6.

*Noise not normally heard by the human ear. More data listed on pages 14-15.

AQH200-B / AQH200E-B

5 10 15 20 25 30 35 40 45 50

Pa600550500450400350300250200150100500

Volume flow (l /s)

1

2

3

4

99%

70%

50%

33%

1

2

3

4

AQH200-S / AQH200E-S

5 10 15 20 25 30 35 40 45 50

Pa600550500450400350300250200150100500

Volume flow (l /s)

99%

70%

50%

33%

1

2

3

4

3

2

4

1

AQH240-B / AQH240E-B

5 10 15 20 25 30 35 40 45 50

Pa600550500450400350300250200150100500

Volume flow (l /s)

1

4

99%

70%

50%

33%

1

2

3

4

2

3

AQH240-S / AQH240E-S

5 10 15 20 25 30 35 40 45 50

Pa600550500450400350300250200150100500

Volume flow (l /s)

1

99%

70%

50%

33%

1

2

3

4

3

4

2

What is Energy Recovery Ventilation?

Heat that causes a change in temperature in an object is called sensible heat. For example, when an object is heated, its temperature rises as heat is added - this increase in heat is the sensible heat. Similarly, when heat is removed from an object and its temperature falls, the heat removed is also referred to as sensible heat. Without a heat exchanger, exhausted sensible heat in a dwelling would be lost.

All pure substances in nature are able to change their state. Solids can become liquids (ice to water) and liquids can become gases (water to vapor) but changes such as these require the addition or removal of heat. The heat that causes these changes is called latent heat – i.e. the energy that is used to add or subtract moisture from air.

An Energy Recovery Ventilator (ERV) is a type of air-to-air heat exchanger that not only transfers sensible heat but also latent heat. Because both temperature and optimal levels of moisture are transferred, ERVs are considered Total Heat (or total

enthalpy) devices. In comparison, a standard Heat Recovery Ventilator (HRV) can only transfer the sensible heat and therefore does not make use of the latent heat.

Why select an Energy Recovery Ventilator?

Clean, pre-warmed and OPTIMAL levels of moisture are transferred

Incoming air is able to harmoniously react with the home environment for greater air comfort

Energy Recovery Ventilation (ERV) for maximum air comfort and quality How Energy Recovery Ventilation (ERV) works

Why ‘Total Heat’ recovery exchangers are required

A relative humidity (RH) of 40-60% is generally considered healthy for a domestic property, however normal household activities and the outside environment can significantly impact how a building performs and its humidity levels.

As homes become more air tight, humidity levels and air quality can be negatively impacted; increasing the need for even more advanced ventilation systems.

This can also be seen in poorly ventilated and highly populated developments such as apartment blocks and dwellings for communal living, including hotels, care homes and student accommodation.

High levels of humidity can cause a build-up of moisture which may lead to health issues for occupants, as well as mould growth and the formation of condensation about the home. HRX-aQ ‘Total Heat’ heat recovery exchangers are cleverly designed to maintain comfortable indoor moisture levels and prevent these problems from occurring.

The range of Silavent HRX-aQ MVHR units also offer options which include specialist ‘Total Heat’ recovery exchangers to further improve air quality and negate the need for a condensation drain. By selecting this heat exchanger, the HRX-aQ will become an Energy Recovery Ventilation (ERV) system, allowing optimal air comfort.

Wasted heat and water vapour are extracted via diffusion

Odours and contaminants are exhausted

Removes the need for a condensate drain, reducing installation time and cost!

Allows freedom in locating your ERV unit.

NOT NEEDED

WITH ERV UNITS

Total Heat recovery exchanger

The diagram above illustrates how the ‘Total Heat’ recovery exchanger exhausts odours and contaminants whilst extracting waste heat and water vapour.


Note: The moisture always moves from the air stream that is the most humid to the one that is the driest.

Integration of the Bluebrain control ensures the maximum benefits of ERV are felt through simple control.

Ultimate control and integration SUMMER EXAMPLE

22 C̊ db15 C̊ wb

SUPPLY

EXTRACT

EXHAUST23 C̊ db16 C̊ wb

27 C̊ db22 C̊ wb

Heat and humidity reduction

INTAKE

Note: wb = wet bulb temperaturedb = dry bulb temperature

During the summer months – especially when the outside air is hotter and more humid than the inside air, the intake air transfers some of its sensible (temperature) heat to the colder exhaust air. At the same time, the intake air also transfers some of its moisture to the exhaust airstream. Because of this, the supply air will be cooler and drier than the outside air.

INSIDE OUTSIDE

WINTER EXAMPLE

During the colder winter months, the ERV system works in the same way as a HRV system, but has the added advantage of recovering some of the moisture from the extract airstream to avoid drying out the inside air to a level where it could become uncomfortable.

SUPPLY

EXTRACT

22 C̊ db19 C̊ wb

INTAKE

EXHAUST17 C̊ db13 C̊ wb

-1 C̊ db-1 C̊ wb

Heat and humidity recovery

Note: wb = wet bulb temperaturedb = dry bulb temperature

INSIDE OUTSIDE

Moisture key:

RH

Optimum

21 3 4 5 6 7 8

Increase value/speed (+)

Decrease value/speed (–)

Commissioning made easier

Engineered to include independent speed control, the HRX-aQ Bluebrain control cleverly allows more accurate commissioning through simple speed adjustment buttons.

Intelligently manages air conditions

Advanced control Advanced control

The HRX-aQ aims to revolutionise heat recovery by also including features such as wireless control, night time cooling, delay on timer, auto frost protection and intelligent summer bypass.

Through advanced AMIE technology (Air Management for Indoor Environments), the Bluebrain controller not only offers simple pre-programmed functions, but also allows for straight forward commissioning.

Digital humidity control aiding homeowner comfort

Through advanced AMIE technology, unlike conventional humidity sensors, the HRX-aQ controller will enable occupants to have direct control over managing the humidity levels in their home - to suit personal comfort levels.

By accurately measuring air humidity, the HRX-aQ’s extract speed automatically changes from background to boost as the level of humidity increases, thereby providing optimal ventilation performance.

Advanced bypass control

Perfect for night time cooling or during warmer periods, the HRX-aQ controller detects when the air temperature reaches a pre-set level and intelligently activates the bypass mechanism; allowing in cooler, fresh and filtered air.

The bypass is also programmable by time, enabling occupants to activate the mechanism.

Dirty filter indicator BMS capabilitiesControl functions

Automated filter maintenance and replacement reminders

Ease of maintenance and filter replacement is an important consideration when specifying MVHR – not only to ensure performance of the unit is maximised and air quality maintained, but also for peace of mind for both the client and occupants.

The HRX-aQ Bluebrain control will therefore remove this concern by providing helpful maintenance reminders for cleaning its filters.

Building Management Systems (BMS)

The HRX-aQ controller is intelligently constructed to be compatible with Building Management Systems.

It incorporates volt free contacts for fault and filter cleaning indication on the Building Management System.

Incorporates AMIE technology

For more details on the control features, please see pages 16-17.

1

3

2

4

Set temperature trigger point (TEMP)

Set date and time (DAY)

Set humidity trigger point (HUM)

Copy program (COPY)

Adjust summer bypass (BYPASS)

Select and edit program (PROG)

Escape function (ESC)

Save function (SET)

5

7

6

8

Flexible,

intelligent

control


AMIE technology takes the hassle out of commissioning!

- The most compact and versatile unit available!

Space in new build developments is of premium importance and a lack of it, is often an issue associated with MVHR installation.

Easy installation

Designed to be the smallest void mounted unit of its type, the HRX-aQ is compact and light enough to be easily installed on a ceiling, leaving space in areas such as utility rooms free for other home appliances, including washing machines and HIU (Heat Interface Units).

To download Installation and Operating instructions, visit www.bluebrain.co.uk/downloads

One-man-lift

At less than 8kgs in weight (1.2 stone or the average weight of a one year old child), the HRX-aQ is the lightest MVHR unit on the market and can be easily and quickly lifted by one person with ease. In comparison, many other units will require a minimum two-man-lift, adding on installation time and costs.

820mm

520mm

From199mm

Without compromising on efficiency, the HRX-aQ is the most compact unit available and will fit in even the most restrictive ceiling voids.

LIGHTWEIGHT

7.9KgFROM


Typical installation

Domus air valve or architectural grille in ceiling

204x60mm Domus ducting

Easily accessible wiring interface

Side view of HRX-aQ, mounted in the ceiling void

Easy installation

Offset duct makes fitting simple

The HRX-aQ has been designed with rectangular socket connections (204x60mm) which enable it to fit directly to Polypipe’s 204x60mm Domus rigid ducting.

Direct connection between the unit and duct will make installation much simpler and removes the need for flexible connectors, thereby improving the performance of the HRX-aQ and ensuring no unsightly flexible ducts are required.

The offset duct connection of the HRX-aQ also enables easier duct installation with no complicated cross overs.

Rigid Ducting

Hassle free design

Intelligent Air Solutions www.bluebrain.co.uk 13

Unit overview

The diagram below illustrates the underside of the HRX-aQ unit and the components involved. These include a wiring interface, intelligent Bluebrain control, accessible filters, condensate drain fitting, in addition to highlighting the supply and extract sockets.

The HRX-aQ comes with two filters which should be cleaned on a regular basis using warm soapy water or a vacuum. The exact frequency will determined by the individual living conditions.

To order replacement filters, visit vent-spares.polypipe.com

Maintenance

Fresh air supplied to habitable rooms

Air extracted from wet rooms

Exhaust of stale air to outside

Condensate trap fitting Intake of fresh air from outside

Domus204x60mm duct

Condensate drain kit (297)

www.bluebrain.co.uk Intelligent Air Solutions12

Wiring centre interface

Bluebrain control unit

Easy access filters on both

sides of the unit

Simple to design-in

Having removed the added complication of where to site the Silavent HRX-aQ without comprising on valuable storage space, the unit can be designed-in with a straight in-and-out duct run; therefore making the design process much quicker and hassle free.

We offer a free design service. To contact our technical team, email [email protected]

Kitchen / living area

Bedroom 2

Bedroom 1

Ensuite

Bath

roo

m

MVHR ceiling unit (AQH200)

Domus extract duct (Supertube 204x60mm)

Domus supply duct (Supertube 204x60mm)

Domus insulated exhaust duct (Supertube 204x60mm)

Domus insulated intake duct (Supertube 204x60mm)

Domus supply/extract adjustable air values Ø125

Domus intake/exhaust double airbrick terminals

FireBrake intumescent duct connectors

Key:

The diagram below illustrates a domestic two bedroom apartment and how the HRX-aQ and Domus ducting can be easily designed in.

One of the most important considerations in modern MVHR design is noise and its impact on a dwelling’s occupants.

With background (normal) ventilation down to 24dB(A) (typically no louder than a whisper), the HRX-aQ is the quietest Silavent MVHR unit in the market. Manufactured from high density EPP material (expanded

polypropylene) for optimum sound reduction, combined with integral flow straighteners for reduced internal resistance, the highly efficient HRX-aQ ensures that break out and induct noise is minimised.

¥Codes for Attenuator 5SL-500 - Domus Microban protected rigid duct sound attenuator. ¥Codes for Attenuator 5SL-500 - Domus Microban protected rigid duct sound attenuator.

Whisper quiet Whisper quiet

The inclusion of rectangular socket connections in the unit not only removes the need for flexible duct connectors, but further reduces the likelihood of invasive noise through improved system performance.

attenuation solutionsDesigned to lower noise



Test - Duty Points 63 125 250 500 1K 2K 4K 8K 1 x 5SL- 2 x 5SL- 3 x 5SL- 500¥ 500¥ 500¥

99% 38 83 52 Open inlet 43 36 49 55 47 38 30 26 37 28 21 15

99% 38 83 52 Open outlet 48 45 59 71 59 59 55 50 52 44 36 30

99% 38 96 52 Breakout 46 55 54 62 53 44 41 34 44 N/A

70% 27 40 22 Open inlet 44 30 53 42 39 29 21 12 29 23 18 14

70% 27 40 22 Open outlet * * 64 53 51 49 45 37 41 35 29 25

70% 27 47 22 Breakout 40 50 54 50 42 39 34 21 34 N/A

50% 21 23 15 Open inlet * * 51 35 34 24 15 * 26 21 15 11

50% 21 23 15 Open outlet * * 55 47 45 42 36 27 34 26 21 16

50% 21 28 15 Breakout * 46 53 43 38 37 31 12 30 24 19 16

33% 15 13 10 Open inlet * * * * 27 17 * * 11 N/A

33% 15 13 10 Open outlet * * 47 41 37 34 25 13 27 19 13 9

33% 15 16 10 Breakout * 41 46 39 34 35 26 6 25 N/A

99% 37 83 52 Open inlet 42 38 45 55 45 37 29 21 36 28 20 15

99% 37 83 52 Open outlet 45 46 57 69 59 57 54 47 51 42 34 28

99% 37 83 52 Breakout 49 57 55 59 51 44 42 33 41 N/A

70% 27 40 20 Open inlet 46 35 49 40 38 28 19 9 27 20 15 11

70% 27 40 20 Open outlet 40 43 62 52 50 47 42 34 40 33 27 23

70% 27 40 20 Breakout 43 49 55 53 41 36 32 21 35 N/A

50% 21 23 15 Open inlet 48 31 47 34 32 21 11 * 23 18 12 8

50% 21 23 15 Open outlet * 38 56 47 44 41 33 25 34 27 22 18

50% 21 23 15 Breakout 48 44 53 46 36 30 24 11 30 25 19 16

33% 15 13 10 Open inlet 42 34 38 29 26 14 3 * 15 9 5 3

33% 15 13 10 Open outlet * * 49 41 37 32 22 16 27 9 3 0

33% 15 13 10 Breakout 46 40 47 40 32 27 17 3 24 N/A

AQH200-S &

AQH200E-S

AQH200-B &

AQH200E-B

Test - Duty Points 63 125 250 500 1K 2K 4K 8K 1 x 5SL- 2 x 5SL- 3 x 5SL- 500¥ 500¥ 500¥

99% 39 96 52 Open inlet 51 39 46 55 40 41 29 24 36 28 20 15

99% 39 96 52 Open outlet 44 45 58 66 57 57 54 47 48 39 31 25

99% 39 96 52 Breakout 45 54 53 60 53 44 41 32 42 N/A

70% 27 65 21 Open inlet * * 50 39 32 32 19 12 26 21 15 11

70% 27 65 21 Open outlet * 40 59 51 48 46 42 34 38 30 24 20

70% 27 65 21 Breakout 45 48 53 53 41 37 32 21 35 N/A

50% 21 34 14 Open inlet * 34 47 32 25 25 9 2 22 17 12 9

50% 21 34 14 Open outlet * 37 51 44 40 38 32 22 30 23 17 13

50% 21 34 14 Breakout 44 44 52 46 36 33 26 12 30 24 18 15

33% 15 19 10 Open inlet * * * 26 * 16 2 1 7 N/A

33% 15 19 10 Open outlet * * 45 38 33 30 21 11 23 17 11 7

33% 15 19 10 Breakout 44 39 44 41 35 31 23 4 25 N/A

99% 39 96 52 Open inlet 45 35 47 50 42 41 28 23 32 23 16 11

99% 39 96 52 Open outlet 55 45 58 67 59 57 55 49 49 40 32 26

99% 39 96 52 Breakout 48 54 56 60 54 44 41 33 42 N/A

70% 27 65 21 Open inlet 46 36 49 40 34 32 17 10 26 20 14 11

70% 27 65 21 Open outlet 47 40 60 51 48 46 42 37 38 31 25 21

70% 27 65 21 Breakout * 49 53 53 41 37 33 20 35 N/A

50% 21 34 14 Open inlet 41 * 48 32 27 25 9 * 23 18 12 9

50% 21 34 14 Open outlet 44 38 51 45 42 40 34 27 31 23 17 13

50% 21 34 14 Breakout * 42 51 45 36 34 26 10 29 23 17 14

33% 15 19 10 Open inlet 45 32 * 24 21 17 * * 10 1 0 0

33% 15 19 10 Open outlet * * 45 38 34 31 22 14 24 16 10 6

33% 15 19 10 Breakout * * 48 39 33 32 20 2 25 N/A

AQH240-S &

AQH240E-S

AQH240-B &

AQH240E-B

FLO

W R

ATE

(l/

s)

FLO

W R

ATE

(l/

s)

PRES

SURE

(P

a)

PRES

SURE

(P

a)

POW

ER

(W)

POW

ER

(W)

POSITION POSITION

SOU

ND

PRE

SSU

RE

(dB(

A) @

3m

)

SOU

ND

PRE

SSU

RE

(dB(

A) @

3m

)

SPEE

D C

ON

TRO

L

SPEE

D C

ON

TRO

L

CODES CODES

SOUND POWER LEVELSdB re 1pW

SOUND POWER LEVELSdB re 1pW

ATTENUATED SOUND PRESSURE

(dB(A) @ 3m) using:

ATTENUATED SOUND PRESSURE

(dB(A) @ 3m) using:

For acoustic attenuation within the duct system itself, look to install Domus rigid duct sound attenuators, which lower sound noise by up to 55dB.

Additionally, Domus Thermal duct insulation is designed specifically to improve the thermal insulation of rigid ducting.

*Noise not normally heard by the human ear. *Noise not normally heard by the human ear.

1 x 5SL-500¥ Attenuation - - 4 7 19 19 22 22

2 x 5SL-500¥ Attenuation - - 10 15 35 36 41 42

3 x 5SL-500¥ Attenuation - 1 13 21 50 52 55 45

1 x 5SL-500¥ Attenuation - - 4 7 19 19 22 22

2 x 5SL-500¥ Attenuation - - 10 15 35 36 41 42

3 x 5SL-500¥ Attenuation - 1 13 21 50 52 55 45

ATTENUATORS ATTENUATORS

Intelligent Home Air Solutions www.polypipe.com/ventilation

AQ

H20

0-B

AQ

H24

0-B

AQ

H20

0E-S

AQ

H24

0E-S

AQ

H20

0-S

AQ

H24

0-S

AQ

H20

0E-B

AQ

H24

0E-B


‘Total Heat’ recovery exchanger

Sound absorbing/thermally insulated EPP moulded body

G3 filters

Offset rectangular 204x60mm duct connections

Backward curved quiet and efficient EC fans

Integrated control electronics

Re-usable filter frames Optional Optional

Includes advanced AMIE technology (Air Management for Indoor Environments)

Power indicator

Status indicator (frost protection, summer bypass etc.)

Fault indicator

Independent fan speed control

Switched live inputs (signal triggers): - Mains level x 2

- Volt free to boost x 2

- Volt free to max x 1

3 variable speeds

Clean filter indicator

Frost protection

Built in humidistat

Run on boost timer

Delay ‘on’ boost

Pre-commissioning filter protection bags

Discreet run monitor

Lockable commissioning mode

BMS features- Pre-heater activation output

- Remote shutdown enable

- System healthy monitor and fault signals

Time and date display

Real time air temperature display

Real time extract air humidity level display

Easy to read, contemporary digital display

Extremely lightweight and compact

Low power consumption and highly efficient

Quick and easy installation and maintenance

Simple and accurate commissioning

Easy access filters

Horizontal slab installation

No condensate drain required

Easy to design-in

Provides improved, balanced humidity levels

Wireless control for improved usability and easier installation Optional Optional Optional Optional 100% bypass aids summer cooling Cost effective model

Extremely cost effective model

2 years warranty

Extra 5 year parts & 2 year labour warranty

GENERAL RANGE FEATURES

CONTROL FEATURES

BENEFITS - WHY IS THIS UNIT DIFFERENT?

WITH BYPASS WITH BYPASSWITHOUT BYPASS WITHOUT BYPASS


Specification for horizontal ceiling units

OperationPolypipe’s Silavent HRX-aQ supply and extract with heat recovery ventilation unit (*MVHR or ERV) shall be positioned and ducted as indicated on the system drawings and as detailed in the Installation and Operation Instructions. It shall be suitable for horizontal ceiling installation and offer the ability to fit directly to a slab.

The unit shall supply filtered, fresh air to each of the habitable rooms and waste air shall be extracted from each of the wet rooms i.e. bathroom, en-suite, kitchen and utility room. The supply air shall be pre-warmed, using the energy from the extract air using an integrated counter-flow heat exchanger. The extracted air shall also be filtered before it reaches the heat exchanger. Energy Recovery Ventilation (ERV) units will include a ‘Total Heat’ recovery exchanger to recover both sensible and latent heat; to provide optimal indoor air conditions.

The HRX-aQ unit shall offer independent fan speed control; that is adjustable to three levels; Low, Boost and Maximum (purge). These speeds will be controllable through a user interface HRX-aQ Bluebrain control. The boost facility can also be triggered from a lighting circuit, if required.

The unit shall have the facility to commission the supply and extract fans independently on low (continuous background ventilation) and boost speed, through the adjustment buttons.

Specification of unitThe unit shall be the Silavent HRX-aQ as manufactured by Polypipe Ventilation and shall be listed on the Product Characteristics Database (SAP Appendix Q).

The HRX-aQ unit shall be manufactured from sound absorbing Expanded Polypropylene (EPP), therefore providing thermal and acoustic characteristics. It shall include a counter flow heat exchanger for a heat exchange efficiency, at typical installation, of up to 88%.

For Energy Recovery Ventilation, the unit shall include a ‘Total Heat’ recovery exchanger, recovering both sensible and latent heat, thereby helping to provide all-year-round ambient indoor air temperatures.

To avoid ceiling void restrictions, the unit shall be from 199mm deep, (520mm high and 819mm wide excluding connections) and up to a maximum of 239mm in depth. It shall weigh from between 7.9kg, up to and 8.4kg to enable easy installation.

The unit shall have a high efficiency, backward curved EC fans for low energy consumption and provide a Specific Fan Power of down to 0.66W(l/s), at typical installation.

The heat exchanger shall be protected by G3 grade filters on the fresh air inlet intake and system extract. The heat exchanger and filters shall be accessible via the underside of the unit, enabling quick and easy maintenance. To avoid on-site damage, the filters shall be supplied in protection bags.

The unit shall connect directly to Polypipe’s Domus 204x60mm rectangular ducting and include offset 204x60mm duct connections, to allow ducts to easily cross over in tight spaces, whilst also enabling simple to design, in-and-out duct runs.

Background ventilation noise shall be minimised down to 24dB(A). The unit’s fans should be quiet enough so as not to discourage occupant use, with very low breakout, open inlet and open outlet sound levels as detailed by Polypipe Ventilation and in accordance with Building Regulations.

The unit can be fitted with a 100% automatic summer bypass. Outside air supplied through the bypass shall be filtered, so the air quality is maintained. The bypass shall open automatically when either the indoor air reaches a pre-set temperature of between +15°C and 25°C or through time clock control which is pre-set using the Bluebrain control. A manual override option is also available.

The MVHR or ERV system shall be safeguarded against damage from very cold weather through an optional frost protection function that is controlled via the Bluebrain control. The frost protection shall automatically trigger when a pre-set level is reached. This can be between -15°C and +5°C.

The unit shall be supplied with a connection to a Domus 297 condensate drain. A condensate drain for ERV units however, will not be required.

Specification of control (user interface)The unit shall include an HRX-aQ Bluebrain control as its user interface, which if supplied with an ERV model, may also be wireless for flexible mounting. For ease of use, the control shall include an LCD display and have the following functions:

Independent control of low (background), boost and maximum supply and extract flow rates

Independent control of fan speed for accurate and straightforward commissioning

Lockable commissioning mode

Power-on, fault and status indicators

Volt free BMS functionality

Programmable time and date functions

Programmable filter check

Programmable 100% summer bypass

Optional frost protection at pre-set levels

Programmable humidity level boost switching

Optional 3-minute delay on boost switching

Optional 5 to 30-minute delay off boost switching

Run-time monitor

Temperature controlled switching for optional duct heater¥

*MVHR - Mechanical Ventilation with Heat Recovery. ERV – Energy Recovery Ventilation.

¥ Not supplied by Polypipe.

www.bluebrain.co.uk Intelligent Air Solutions18

Complying with Building Regulations Best practice design and installation

Domestic ventilation The position of supply or extract valvesAs detailed in the NHBC specification, you should ensure that air valves are appropriately specified for wall or ceiling locations, in addition to supply or extract.

To enable supply and extract ventilation within a room, low velocity air valves should be positioned on the opposite side of the room to internal door openings. These should be positioned no closer than 200mm to walls when located on a ceiling and no more than 400mm from the ceiling when located on a wall. Whilst extraction air valves positioned in kitchens, should be a minimum of 600mm away from hobs.

To aid homeowner comfort and avoid drafts, the position of air valves should take into account the location of tall furniture, seating and sleeping areas. If installing linear grilles, do not site them over doorways, as the supply air is not likely to ventilate the rooms correctly.

Air transferTo ensure sufficient transfer of air throughout the dwelling, there should be a minimum gap of 10mm between the underneath of the door and the fitted flooring. If installing floorboards (or other similar surfaces) or there is no flooring in place, it is recommended making an undercut of 20mm under the door frame.

NoiseAny continuously running fans should be quiet enough so as not to discourage their use by occupants. By incorporating high quality Domus sound attenuators, as well as correctly installing the system, noise will be minimised.

Duct and insulationTo minimise pressure losses and air leakage, specify a high quality duct system, such as the Domus duct range and ensure installers are BPEC accredited to fit and commission an MVHR system.

2010 Building Regulations demands duct insulation such as Domus Thermal, must be the equivalent of 25mm at 0.04 W/(m.K) thermal conductivity, equating to a minimum thermal resistance of 0.625 K/W per m². In addition, the insulation also requires a continuous vapour barrier when insulating the duct between the MVHR unit and external terminals.

Siting the MVHR unit:Position the MVHR unit as close to the external terminals as possible to minimise the duct runs and hence resistance within the system. Access to filters should be considered for easy maintenance.

Student accommodation and care homes

Design of continuous mechanical supply and extract with heat recovery (MVHR) systems

The comfort of occupants in care homes and student dwellings needs careful consideration, as well as their ability to easily control the ventilation levels within their rooms. By specifying an MVHR system, it will help ensure that healthy indoor air levels are consistently maintained.

Approved Document Part L of Building Regulations mainly focuses on the assessment of energy performance and the calculation tool used for non-domestic buildings (the Simplified Building Energy Model or as otherwise known, SBEM).

SBEM makes the following air flow assumptions:

Note:

a. In addition, the minimum ventilation rates should be no less than 0.3 l/s per m2 of internal floor area (this includes all floors, e.g. for a two-storey building, add the ground and first floor areas).

b. This is based on two occupants in the main bedroom and a single occupant in all other bedrooms. This should be used as the default value. If a greater level of occupancy is expected, add 4 l/s per occupant.

Continuous mechanical supply and extract with heat recovery (MVHR) (also known as system 4), is an effective way of balancing indoor air levels for a healthier living environment.

Determining air flow rates*

Step 1

For any design air permeability, identify the whole dwelling ventilation rate from Table 1.1b. Where the designed air permeability is intended to be leakier than 5m³/h.m² at 50 Pa, allow for infiltration in all dwelling types by subtracting from the whole dwelling ventilation supply rate, as listed in table 1.1b: 0.04l/s.m³ x gross internal volume of the dwelling’s heated space (m³) - however review Building Regulations cautionary advice in sec 5.10.

Step 2

Calculate the whole dwelling extract ventilation rate by adding-up the individual room rates for a minimum extract rate, from Table 1.1a.

The required extract rates

Step 3

The maximum whole dwelling extract ventilation rate (i.e. the boost rate) should be at least the greater of steps 1 and 2.

The maximum individual room extract rates should be at least those listed in Table 1.1a for the minimum high rate. The minimum whole dwelling supply ventilation rate should be at least the whole dwelling ventilation rate found in Step 1.

*Ref pg 29 of 2010 Building Regulations.

Further recommendations on best practice MVHR design and installation is also listed in the 2010 Building Regulations, CIBSE guide, B 2005 and NHBC Specification, 2016. For more information or to book a Polypipe Ventilation CPD on best practice design and installation, please email [email protected]

Bathroom (extract) 12 l/s

Bathroom (supply) 10 l/s

Minimum rate Minimum high rate Minimum low rate

Kitchen 30 l/s adjacent to hob, 13 l/s Total extract rate should or 60 l/s elsewhere be at least the whole dwelling ventilation rate given in the table below.

Utility Room 30 l/s 8 l/s

Bathroom 15 l/s 8 l/s

Sanitary 6 l/s 6 l/s Accommodation

1 2 3 4 5

Whole dwelling ventilation rate a.b. (l/s) 13 17 21 25 29

Bathroom (extract) 12 l/s

Bathroom (supply) 10 l/s

STUDENT ACCOMMODATION REQUIRES

TABLE 1.1a - EXTRACT VENTILATION RATES

TABLE 1.1b - WHOLE DWELLING VENTILATION RATES

CARE HOMES REQUIRE

ROOM INTERMITTENT EXTRACT CONTINUOUS EXTRACT

NUMBER OF BEDROOMS IN DWELLING

Intelligent Home Air Solutions www.polypipe.com/ventilationIntelligent Air Solutions www.bluebrain.co.uk 19

Rigid Duct Plenum with Flow Control Device

Radial Plenum with Flow Control Device

Stylish architectural grilles

duct solutionsBy specifying and installing the HRX-aQ in conjunction with our Domus Flow Control Plenums, it will allow the ability to integrate stylish architectural grilles over traditional air valves.

Furthermore, when combined with Domus High Efficiency Green Line Bends, which reduce duct bend resistance by up to 60%, the full system’s performance is outstanding.

Designed to enable a uniform flow of air through the bend, Domus Green Line bends will also help and allow the system to achieve greater air flow rates that may otherwise not have been possible.

Typical air flow through a standard bend

Typical air flow through a Domus Green Line bend

For more information on the full range of market leading Domus duct products, visit www.polypipe.com/ventilation

www.polypipe.com/ventilation

E & OE - we reserve the right to alter product specification without prior notice.

Polypipe Ventilation Sandall Stones Road

Kirk Sandall Industrial EstateKirk Sandall, Doncaster

DN3 1QRUnited Kingdom

UK Tel: 03443 715523UK Fax: 03443 715524

International Tel: +44 (0) 1302 348878International Fax: +44 (0) 1302 348879

Email: [email protected]

Web: www.polypipe.com/ventilation

©2016 Polypipe VentilationAll product images are the copyright of Polypipe Ventilation

and are not for reproduction without permission

Intelligent Air Solutions

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Intelligent Air Solutions - HRX-aQ Bluebrainbluebrain.polypipe.com/sites/default/files/hrx-aq_brochure_0.pdf · 2 Intelligent Air Solutions Intelligent Air Solutions 3 Quiet Compact