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Residential Ventilation SystemsIntelligent ventilation solutions by Systemair

2 | Exhaust fan unit Systemair Residential Ventilation Systems

Pure, fresh air gives quality of life -

Welcome to SystemairTo breathe is to live. That is a fact of life and since 90% of our time is spent indoors, 90 percent of the air we breathe is indoor air.

To get the best possible indoor air, and indoor climate, you need optimal ventilation. That is exactly what you get with SAVE from Systemair. SAVE is a series of efficient heat recovery ventilation units that are tailored for individual homes, smaller offices, and similar premises.

All SAVE units fulfil the market’s high demands for low energy consumption and sound levels. And state-of-the-art EC technology ensures that the fans are energy efficient and contribute to low SFP (Specific Fan Power) values.

When you want top-quality residential air and a great indoor climate you can count on SAVE from Systemair.

Here in the UK we have over 28 years experience

with heat recovery ventilation systems (MVHR),

offering customers trustworthy and reliable

solutions for all their ventilation needs from our

Residential Systems office in Oxfordshire.

It begins with a bespoke quotation and technical

information provided by our experienced staff, who

will talk through the details of your project to ensure

the best ventilation solution.

Once an order is placed we produce detailed designs

in 4 colour CAD, for approval by yourself or your

contractor. Then dependant on your requirements

we offer supply only of parts or our full installation

service along with commissioning and aftercare.

Our all round worry free service makes it easy

About us

1984 The Company was founded under the name

of Flebu Ltd, and sold Heat Recovery Ventilation

Units to the UK residential housing market.

1996 Flebu Ltd was purchased by the Systemair

Group from Sweden, this brought a name change

to Villavent Ltd. The company continued to be a

pioneer in the growing market of residential heat

recovery ventilation systems.

2012 Villavent Ltd merged with its parent company

and is now Systemair Ltd. The offices in Witney,

Oxfordshire continue to be the Residential Centre of

Excellence offering the complete service of Design,

Supply, Install, Commission, Service and Aftercare.

Manufacture Supply OnlyDesignIn 4 colour CAD

Our design office is based in Witney, Oxfordshire at our Centre of Excellence for residential ventilation systems. Our designers are highly trained and have a unique understanding of whole house ventilation and are able to plan and offer the most suitable ventilation design for your project.

After the design has been approved, a list of materials will be generated to create your bespoke kit of parts. Our CAD plans also details information concerning duct installation in 4 colours, location and wiring of the controls. This considerably facilitates the installation process whether that be by contractors or yourself.

You may decide to fit the ventilation system yourself and with our bespoke design and easy to assemble parts this could not be simpler. Once you have approved your drawings a kit list is prepared and our dedicated Projects Team now take over. They will organise payment and delivery at the appropriate time for your build schedule.

We have worked with self-builders for many years and we understand that clear information and easy access to our highly trained staff is very important. Therefore, we ensure you are provided with the name and contact details of the individual who is dealing with your project at each stage.

Then, when you are ready to commission the system we can offer that service as well, just call us to discuss the options.

Systemair began in 1974 in Skinnskatteberg, Sweden and has grown into a worldwide leading ventilation company.

Our products are available from over 60 subsidiaries in over 40 countries ensuring we are easily accessible to our customers.

When you buy from a manu-facturer with our longevity and resources you can have piece of mind that should there be an issue in the future we will be there to help you.

Our focus is on quality, functionality, energy efficiency and customer service.

Save energy, lower running costs: Our label "Green Ventilation" features products with a high energy saving potential. All products labelled with "Green Ventilation" combine energy economy & energy efficiency.

Quality: Systemair is certified in accordance with ISO 9001; ISO 14001 and ATEX. Our research and development laboratories are one of the most modern in Europe; measurements are made in accord-ance with international standards like AMCA and ISO.

Isometric Design

Installation Commissioning Service & Aftercare

Once you have approved your drawings the kit list is prepared and our dedicated Projects Team now take over, they will organise payment and installation visits at the appropriate time for your build schedule.

The installation takes places in two seperate visits the first to fit all ductwork and ideally position the unit (dependant on unit type) this is at first fix stage. The second visit is to make the final connections, fit the louvres, test and commission the system.

Our fully qualified (BPEC) installation teams will ensure that your system is fitted as per the approved drawings and provides the correct airflows to ensure a healthy living environment.

It goes without saying that a high quality system comes with a high quality service. All of our units are supplied with a 2 year warranty (Terms & Conditions Apply).

We are confident that you will be delighted with your ventilation system but should you have any questions we are here to provide you with the answers.

We can also offer you an annual service where we will check/change the filters and ensure your system is working efficiently, providing a healthy living environ-ment.

For more informationCall 01993 778481 or email sales@systemair.co.uk

Heat Recovery Ventilation Systems must be commissioned to comply with Part F of the Building Regulations. (Latestrevision 2010).

Our BPEC trained engineers will visit at a convenient time to test each of the grilles/valves on your system to ensure accurate airflows are achieved as per our design.

• Filters examined & changed• Interior of unit cleaned• Controls tested• Internal Extract valves

cleaned• System health check

A commissioning certificate will then be issued in accordance with the Domestic Ventilation Compliance Guide 2010 for the installation, inspection, testing, commissioning and provision of information for Fixed Domestic Systems.

One of our ductwork options

Heat Recovery Ventilation (MVHR) Those wishing to build or carry out renovations today are faced with a challenge. The current building regulations demand better insulated and air-tight buildings in order to protect our resources and the environment. Air-tight and well insulated buildings prevent natural ventilation through the buildings component parts, which could result in the formation of mould through damp stagnant stale air, which is detrimental to both the building structure and the health of the occupants. The solution is a Systemair ventilation system.

For over 35 years, we here at Systemair have been making energy efficient clean air a reality and our office in Oxford has specialised in residential systems for over 28 years. We offer our customers a system which lets you enjoy fresh air around the clock, without having to lift a finger. This is because the air exchange occurs automatically and importantly, it is regulated. Opening the windows for a quick airingout is no longer necessary. Not only is this very convenient, you also save both money and energy in the process.

Why? Because the heating energy stays where it’s supposed to in the house. This is especially the case with heat recovery ventilation. In this process, the stale air is extracted from the wet rooms (Kitchen, bathroom, WC etc.) and used for tempering the cool fresh air before it is supplied to the living areas (Lounge, bedrooms, study etc.) making unsightly trickle vents, that cause draughts,a thing of the past.

Along with used stale air, our systems also expel excessive air moisture. This way, you can enjoy a pleasant environment without condensation and mould. Not only does this protect the basic fabric of the building, it protects the occupants’ health as well. Just as beneficial to their well-being are our high-quality pollen and dust filters. Even people with allergies can now breathe a sigh of relief.

This is how your controlled room ventilation works:The extract fan within the ventilation system extracts air from the wet rooms (kitchen, bathroom, WC) on a continual basis. A heat exchanger extracts the heat from waste air first. At the same time, fresh air from outside is taken in and filtered.

If necessary, the heat exchanger pre-tempers the cool outside air using the heat from the waste air. The fresh air then flows through the vents into the rooms. From there, the supply air flows to the living areas via the landing and hallway and into the kitchen bathroom and WC. This way, the two different air streams don’t mix. The result being an optimum room environment.

6 | Heat Recovery Ventilation Systemair Residential Ventilation Systems

Benefits• Fresh filtered air 24/7

• Excellent heat recovery efficiency

• High quality filtration

• Low energy motors

• Automatic summer by-pass

• Quiet running

• User friendly controls

• Easy to install & maintain

Systemair Residential Ventilation Systems Heat Recovery Ventilation | 7

Your choice of Heat Recovery Systems

Heat exchanging up to 86%The structure of the rotary wheel heat exchanger and continuous rotation between hot and cold air flows heats the exhaust air wheel, which transfers this heat to the cold supply air in winter time. This effect can be reversed in summer time by transferring the colder exhaust air on to the incoming outside warm air.

This provides a cooling effect on warmer days.

Humidity transfer with a condensation rotorThe thermal wheel heat exchanger consists of pure aluminium which transfers humidity exactly when condensate appears on the exhaust air side and is absorbed by the outside air. High temperature differences can reach humidity return values up to 60%. In winter time our rotary wheel heat exchanger transfers humidity when required which minimises dry air.

Rinse chamberSome outside air flow is led on the exhaust air side to produce a rinsing effect. This reduces the transmission of exhaust air to a minimum by carryover. For correct operation of the rinse chamber, a pressure gradient of min. 200 Pa on supply and exhaust air is necessary.

Frost protectionA condensate drain is not required in residential construction. Furthermore, the rotor does not freeze because of the transmission of condensate down to -30 °C by a little exhaust air surplus. A frost protection for heat exchangers is not needed.

Counterflow heat exchanger: VTC units

Heat exchanging up to 90%Counterflow heat exchangers lead air flows through parallel

plates arranged in a row. On the opposite side supply and exhaust air alternates. Warm air flow transfers energy via the plate to the cold air flow.

Humidity transfer is not possibleIn winter time, condensate has to be drained into a waste water pipe. The drain should always have either a water trap or

running trap to prevent stale odours from coming back up from the drain system.

Separated Air Streams Supply and exhaust air are totally separated from each other to keep the supply air clean.

Frost protectionThe higher the efficiency of an exchanger, the more condensate drops out at high temperature differences. The efficiency also influences the temperature when frost protection is necessary for the exchanger. This concerns outside temperatures when condensate starts freezing. For high quality counter cross-flow heat exchangers with an efficiency of 90 %, this can already begin at -3 °C. To ensure frost protection and to avoid pulling out energy from the exchanger, outside air can be pre-heated, the supply air can be set back or the outside air can be bypassed at the heat exchanger via a bypass flap. The missing heat transfer by setting back the supply air fan or during bypass of the supply air has then to be replaced by the heating system.

Conclusion:A ventilation unit with heat recovery provides a healthy, comfortable indoor environment with filtered supply air to the dwelling. Furthermore, the energy saving potential meets the future requirements. The decision for a unit with heat recovery allows combining comfort and energy savings.Counterflow heat exchanger vs. rotary wheel heat exchanger: a rotary wheel heat exchanger is the best choice for single-family houses or single residential units. It is more effective and creates a better indoor climate plus there is no requirement for a conden-sate drain to overflow. These rotary wheel units also allow for automatic summer by-pass during warmer months. To supply more than one residential unit, a counterflow heat exchanger is the right choice. The required energy for frost protection reduces the efficiency of this exchanger.Example of Heat Recovery Unit with 80% Efficiency:-Indoor room air at 21°C is extracted back through the Heat Recovery Unit where it exchanges its heat with the outdoor incoming air. Therefore if the outside air temperature was -1°C, the supply air into the room would be warmed to around 15°C. The integral heater inside the heat recovery unit can be used to boost this temperature further, if required.

How it works

Rotary wheel heat exchangers: VSR & VTR units

Automatic Summer by-passThe integral controls automatically switch the heat exchanger on & off for rotary wheel or opens a bypass damper for counterflow which helps to keep your property cooler in the summer months.

SAVE VTC 300Top connected unit with counterflow heat exchanger designed for installation on the wall for a ventilated floor area of apprx. 240m².• High efficiency counterflow heat exchanger• EC technology fans• Demand control regulation• Automatic summer-bypass

SAVE VTC 700Top connected counterflow unit designed for installation on the floor in utility/plant rooms for a ventilated floor area of apprx. 600m².• High efficiency counterflow heat exchanger• EC technology fans• Demand control regulation• Seperate setting of supply & extract airflow• Automatic summer-bypass

SAVE VTR 150/BSide connected unit with rotary wheel heat exchanger designed for installation in the ceiling and for properties up to appx. 100m².• High efficiency rotary wheel heat exchanger• EC technology fans• Demand control regulation• Automatic summer-bypass• Cookerhood connection• Start up wizard for easy commissioning

SAVE is a green family withmodern EC technology

SAVE VSR 300/500Side connected unit with rotary wheel heat exchanger designed for installation in the loft and for properties between 240m² and 400m².• High efficiency rotary wheel heat exchanger• EC technology fans• Seperate setting of supply & extract airflow• Demand control regulation• Automatic summer-bypass• Start up wizard for easy commissioning

VTC 700VTC 300

VSR 500VSR 300

VTR 500VTR 300/B

VTR 200/BVTR 150/K

VTC 700VTC 300

VSR 500VSR 300

VTR 500VTR 300/B

VTR 200/BVTR 150/K

0

0 50 100 150 200 250

100 200 300 400 500 600 700 800 900

m3/h

l/s

VTR 150/K

VTR 200/B

VTR 300/B

VTR 500VSR 150/B

VSR 300

VSR 500

VTC 300

VTC 700

SAVE VTR 150/KTop connected unit with integrated cooker hood designed for installation in the kitchen above the hob and for a ventilated floor area of apprx.100m² • High efficiency rotary wheel heat exchanger• Available in White or Steel finish• EC technology fans• Demand control regulation• Automatic summer-bypass• Modern design• Available in stainless steel or white finish

SAVE VTR 300/500Top connected unit with rotary wheel heat exchanger designed for installation on the wall and for a ventilated floor area of apprx.400m² • High efficiency rotary wheel heat exchanger• Seperate setting of supply & extract airflow• EC technology fans• Demand control regulation• Automatic summer-bypass• Start-up wizard for easy commissioning

Countless PossibilitiesOne source

10 | Heat Recovery units Systemair Residential Ventilation Systems

Overview Residential Heat Recovery Units

VTC Low E VTR 150 VSR 150/B VTR 200B VSR 300 VTR 300 VTC 300* VTR 500 VSR 500 VTC 700

Application

Flats / Apartments a a a a a a a

Individual Homes a a a a a a aMultiple Housing / Student Accommodation a a a a a a a

Large Family Homes a a a aSuitable for 2010 Building Reg’s m² floor area 100 100 100 140 240 240 300/250 350 400 600/560

SAP Appendix Q Approved*(Passive House Certified) a a a a a a a

max. sound level at 1m distance dB(A) 47 43 44 41 44 45 45 51 47 53

efficiency heat recovery % 86 85 85 85 84 83 80 82 85 85

supply air filter - G2 G3 F7 F7 G3 or F7 G3 or F7 G4 or F7 G3 or F7 G3 or F7 G4 or F7

extract air filter - G2 G3 G3 G3 G3 G3 G4 or F7 G3 G3 G4 or F7

voltage/frequecy V/50Hz 230 230 230 230 230 230 230 230 230 230

max. power fans, each W 26.5 86 37 84 83 88 85 170 169 168

electr. Heater W N/A 500 or 1000 500 500 or 1000 1670 1670 1700 1670 1670 1700

fuse A 10 10 10 10 10 10 10 13 13 10

weight kg 26 54 47 46 61 69 72 81 72 150

duct connections mm 125 125 125 125 160 160 160 200 200 250

width mm 598 600 628 598 1120 762 762 920 1120 1170

height mm 579 774 1107 750 602 824 802 863 652 1214

depth mm 280 467 300 428 505 486 616 583 595 860

condensate connection (2x) 2 no not req’d not req’d not req’d not req’d not req’d 1/2” not req’d not req’d 1/2”

by-pass duct for cookerhood Yes integrated Yes Yes No Yes No No No No

Systemair Residential Ventilation Systems Heat Recovery units | 11

VTC Low E VTR 150 VSR 150/B VTR 200B VSR 300 VTR 300 VTC 300* VTR 500 VSR 500 VTC 700

Application

Flats / Apartments a a a a a a a

Individual Homes a a a a a a aMultiple Housing / Student Accommodation a a a a a a a

Large Family Homes a a a aSuitable for 2010 Building Reg’s m² floor area 100 100 100 140 240 240 300/250 350 400 600/560

SAP Appendix Q Approved*(Passive House Certified) a a a a a a a

max. sound level at 1m distance dB(A) 47 43 44 41 44 45 45 51 47 53

efficiency heat recovery % 86 85 85 85 84 83 80 82 85 85

supply air filter - G2 G3 F7 F7 G3 or F7 G3 or F7 G4 or F7 G3 or F7 G3 or F7 G4 or F7

extract air filter - G2 G3 G3 G3 G3 G3 G4 or F7 G3 G3 G4 or F7

voltage/frequecy V/50Hz 230 230 230 230 230 230 230 230 230 230

max. power fans, each W 26.5 86 37 84 83 88 85 170 169 168

electr. Heater W N/A 500 or 1000 500 500 or 1000 1670 1670 1700 1670 1670 1700

fuse A 10 10 10 10 10 10 10 13 13 10

weight kg 26 54 47 46 61 69 72 81 72 150

duct connections mm 125 125 125 125 160 160 160 200 200 250

width mm 598 600 628 598 1120 762 762 920 1120 1170

height mm 579 774 1107 750 602 824 802 863 652 1214

depth mm 280 467 300 428 505 486 616 583 595 860

condensate connection (2x) 2 no not req’d not req’d not req’d not req’d not req’d 1/2” not req’d not req’d 1/2”

by-pass duct for cookerhood Yes integrated Yes Yes No Yes No No No No

Central ExtractSingle extract fan or multi point extraction? Tell us your needs and let us suggest a solution

Loft Mounted or Ceiling Void UnitsRotary Wheel heat exchanger? Option for connecting remote cooker hood? We have a solution for your every need.

Wall Mounted Heat Recovery UnitsRotary Wheel or Counter flow heat exchanger?Integral cooker hood?We have a solution for your every need.

Perfectly in tune with your Ventilation needsOur easy to choose solutions make up your bespoke ventilation system

12 | Ventilation System + Systemair Residential Ventilation Systems

For whichever convenient ven-tilation system you require, you can choose regardless of your structural circumstances, with our ductwork systems we rise to every challenge.

Whether it’s galvanised steel ducting or polymer, whether round or rectangular, all ducts & pipes are extremely robust, resistant to deformation and, if necessary, easy to clean.

We will design your system to meet your individual require-ments. This guarantees the safe and economical distribution of air through the building.

Do you prefer modern living? What about classical, maybe elegant or perhaps you prefer the style of the country house? Regardless of which fittings you like, your’re bound to find the design your’re looking for in our versatile range of high-quality ceiling and wall vents.

SystemairDuct systemsExtremely flexible

SystemairGrilles & DiffusersJust your style

Whether you would like to add cooling to your ducted system or just have local air conditioning in your con-servatory. Take advantage of the benefits of our Ground source heat pump or simply install a powerful central vacuum system - the choice is yours

SystemairAdd-onsTailor make your system

Systemair Residential Ventilation Systems Ventilation Systems + | 13

Control Features :-

• User friendly control panel with Symbol and Text in the LCD-display to indicate chosen settings• Start-up wizard to simplify set up• Separate setting of supply and extract airflow for total control.• Summer by-pass changes automatically without heat recovery• Week schedule / Timer • Control of optional water heating 0-10V• Control of optional cooling device• Demand ventilation; CO2, RH%, temperature, presence sensor optional etc.• Modbus BMS communication• Alarm indicates possible malfunction and time for filter change

Control panel for the SAVE models.

The SAVE VTR & VTC units for wall installation are supplied with integrated control panel. (additional remote panels can be used if required) A separate control panel, type CD, is used for control of SAVE VSR models. Symbol and text in the display indicate chosen settings; re-heater on, summer operation and time for filter change. Commissioning of airflow on supply and extract on each step is set from the CD panel. Timer function, for automatic change between day and night operation (installations in commercial buildings) is integrated. Alarms will indicate possible malfunctions and ensure safe and energy efficient operation.

The CD panel also has a user level for authorised installers and service personnel (password protected).

The remote CD panel is connected to the unit by means of cable with quick connectors (modular plugs), or via 4-pole terminal block. Diverging plugs to be used for fitting of more than one control panel.

Demand Control

14 | Controls Systemair Residential Ventilation Systems

%CO

2

°C°C

Manually

Hum

idity

Air Q

uality

Presence

Pressure

Temperature

Time Sum

mer/

Winter

EC-Vent controls the degree of ventilation in buildings to meet different levels of occupancy as detected by sensors located within the areas to be ventilated. The result is an

indoor climate that always matches building use and occupation. In opposite to other control systems, all sensors are included for the detection.

Optimal degree of ventilation due to numerous sensors

Intelligent & Flexible Solutions

Systemair Residential Ventilation Systems Geo Thermal Heat Exchanger | 15

GEO - Geothermal heat exchanger unit

Why choose a ground heat exchanger?

In the winter, domestic heat recovery units switch to a frost protection mode at low temperatures outside. This usually means that the supply fan slows down, causing an imbalance between the supply and exhaust air through the heat recovery unit. Another possibility is that a (pre-) heater is turned on, which usually consumes 1 to 2kW of energy.

In the summer, at high external temperatures, the supply air from outside can be warmer than the air inside the house. Thus, this warm supply air can heat the house while this is not preferable.

The horizontal ground heat exchanger GEO can offer a solution for the problems mentioned above, using a minimum of energy.

Why choose a GEO?

GEO has its own control which can be used in combination with any type of heat recovery unit. This control will start the highly energy efficient pump of the GEO unit at spe-cific set outside temperatures, causing the Glycol mixture to flow through the pipework. The temperature of the Glycol mixture, will approach the temperature of the soil and will transfer its energy to the supply air of the heat recovery system through the battery of the GEO unit.

By using GEO, the efficiency of the heat recovery can be increased.

Demand Control

Benefits• With 8W energy, you can gain up to

1.5 kW;

• Can be used in combination with any HRV unit up to 300m³/h;

• Increases the efficiency of the heat recovery unit;

• Has its own control, allowing energy consumption only when needed;

• Has an A label-EC pump and a G4 filter for the protection of the heat exchanger;

• Is easy to install, all in 1 case (pump, control, sensors, filters, filling and venting unit, battery, gauge, vent valve, volume meter, and pressure vessel);

• Has a right / left version in 1 unit and the air to the heat recovery unit can be mounted both on the top and on the side;

• Thanks to relatively thin duct (40 mm), it is easy to install;

• Is an hygienic and attractive solution;

• Is easy to clean: condensation develops in the Aquacom, which is led to the sewer through the condensate drain.

Ground Source Heat Pump

For example: In an average house with the Heat recovery unit at speed 2 (+/- 250m³/h) in summer the GEO will cool down the outside temperature from 30°C to 20°C.In winter the GEO will heat up the outside temperature from -10°C to 2,5°C.

16 | Extra‘s for your MVHR system Systemair Residential Ventilation Systems

More than just a Heat Recovery System

Cooling options With summers becoming warmer the tricky question on how to cool your property without installing an independent air conditioning system arises. The answer is to add Systemair Comfort Cooling to your Heat Recovery Ventilation system (dependant on unit type).

Our Comfort Cooling unit will cool and dehumidify the incoming ambient air by 8-12°C in summer. Depending on the amount of heat gain in the building and the amount of air provid-ed by the ventilation system the room tempera-ture will be affected accordingly. The system operates with 100% fresh air, it does not recycle air. (This is not air conditioning).

How it works

The system consists of an internal cooling coil, connected by pipework to an outdoor condension unit which rejects the heat removed to the atmos-phere by utilizing the vapour compression cycle. The external condensor pumps refrigerant to the internal cooling coil where gas absorbs as much heat as it can from the air passing over it. The refrigerant is then pulled back to the condensing unit and gives up the heat to the atmosphere. The refrigerant is transferred through copper pipework which is fully insulated. This cycle continues until the set temperature is reached. This is called a DX system (direct expansion).

We can also offer independant split Air Conditioning DX units, suitable for cooling your conservatory

Features

• SYSPLIT WALL INV are the most affordable and reliable solution for residential premises.• Highly efficient inverter control provides accurate regulation of the room temperature.• Stylish appearance with big LCD showing all main settings of the air conditioner.• Outdoor unts are equipped with valve protection cover.• Self-diagnosis function continuously monitors the operation of the air conditioner and protects the system.

The controls are user friendly requiring little adjust-ment once set and as the air comes through the ventilation system there are no additional registers in the ceiling.

With Turbo mode the unit will run with the ultra high speed for 20 minutes to reach more quickly the set-point temperature.Hydrophylic aluminium fins of the indoor units improve the heat exchange efficiency in cooling and heating mode.Environmentally friendly refrigerant R410A.Infrared remote control SYSCONTROL RM 35 included.

Make everyday more comfortable by adding cooling

Systemair Residential Ventilation Systems Exhaust fan unit | 17

Mechanical Extract Ventilation (MEV)Cheaper than installing individual extractor fans

A central extract fan unit continuously extracts the stale air from the kitchen, bathroom, utility and WC through a ductwork system which leads to the outside via the roof, soffit or wall grille/vent. (Only one break out point required unlike individual fans that require a break out for each).

Fresh air enters the property via trickle vents in the window frames and ensures continuous air-flow throughout the property.

The fan units can be located in a cookerhood, a cupboard at high level or a roof void. The system is controlled by the cookerhood or via a separate control panel. The low energy motors ensure a cost effective solution.

Benefits• Only one unit

• Only one electrical point

• Low energy motors

• No overrun timers

• Controls condensation

• Quiet running

• User friendly controls

• Easy to install

18 | Central Extraction Systems Systemair Residential Ventilation Systems

Make household chores fun againVillavent Central Vacuum Cleaner

You will no doubt want to keep up with the times when it comes to household chores too and ensure the greatest convenience possible. So why not install our Villavent Central Vacuum Cleaner! With this system, all you have to do is insert a suction hose into a socket in the wall and they can get started straight away. No more pulling around a clunky machine, which often likes to get caught on valuable pieces of furniture, leaving behind ugly marks. And no more need to carry heavy items from floor to floor in order to vacuum clean. Household chores really can be this easy.

Incredible suction. Incredibly quiet.This helps our customers maintain a healthy room climate with clean air. For one, its very strong suction guarantees maximum cleaning of furniture, floor and rugs. For the other, sucked in dirt is sped directly into the vacuum cleaner bag

of the central device. This can be mounted in a util-ity room like the basement or garage. This means that the vacuum cleaner is extremely quiet and you don’t have any annoying background noise in the rooms of your house.

Additionally, the central device blows the waste air directly to the outside. This ensures that dust doesn’t swirl up in your utility room - meaning that time is saved when cleaning and those with aller-gies don’t have to worry. Equipped with a Hepa filter, the vacuum cleaner is even suited to passive houses whose building envelope cannot be cut through by air discharge openings. The long, flex-ible suction hose comes equipped with a telescopic pipe and floor nozzle. This means you can work in ease. Maintenance of the central vacuum cleaner is generally limited to regular cleaning of the suction casing and replacing the filter bags/emptying the cannister as required.

Systemair Residential Ventilation Systems Central Vacuum Systems | 19

Building Regulations - Part F Ventilation 2010

Room Intermittent Extract Continuous ExtractMinimum Rate Minimum High Rate Minimum Low Rate

Kitchen 30l/s adjacent to hob; or 6060l/s elsewhere

13l/sTotal extract rate should be at least the whole dwelling ventilation rate given in Table 5.1b

Utility room 30l/s 8l/sBathroom 15l/s 8l/sSanitary accommodation 6l/s 6l/s

Table 5.1a Extract Ventilation rates

Table 5.1b Whole dwelling Ventilation rates

Number of bedrooms in dwelling1 2 3 4 5

Whole dwelling ventilation rate a,b (l/s) 13 17 21 25 29Notes:a. In addition, the minimum ventilation rate should be not less than 0.3l/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 4l/s per occupant.

20 | Building Regulations Systemair Residential Ventilation Systems

The revised Building Regulations Part F (Means of Ventilation) and Part L (Conservation of Fuel and Power) documents came into effect from 1st October 2010 superceding all previous revisions.

Ventilation within a home helps with the dilution and removal of pollutants as well as reducing humidity and con-densation. Their combined removal creates a healthier environment and helps asthma and allergy sufferers. At the same time, the changes to the regulations reflect research linking air pollutants and condensation to effects on health (particularly asthma) and damage to the building fabric (mould).

Mechanical Ventilation with Heat Recovery - System 4

MVHR is a whole house ventilation system that supplies and extracts air on a continuous basis as per the rate in table 5.1b and with a facility to be boosted as necessary. The MVHR unit can be installed in the loft space, cupboard, utility or plant room. Ductwork coming off the unit running through the voids in the property then supplies fresh filtered air to the habitable rooms (lounge, dining, bedrooms etc.) and extracts the stale air from the wet areas (bathroom, kitchen shower etc.). Trickle ventilation in window frames is not required.

Manual boost controls must be located near to the rooms being served to en-sure correct operation of MVHR systems.

Example:Three bedroom house, kitchen/diner, living room, bathroom, WC, ensuite with a floor area of 110m²Whole property ventilation rate (normal) calculate this from table 5.1.bi.e. 33l/s based on 110m² x 0.3 l/s = 33l/s

Extract Airflow l/s Normal l/s Boost l/s

Kitchen 11 13

Bathroom 6 8

WC 4 6

Ensuite 6 8

Utility 6 8

Total 33l/s 43l/s

Supply Airflow l/s Normal l/s Boost l/s

Living Room 7 9

Kitchen/Diner 7 9

Bedroom 1 5 7

Bedroom 2 5 7

Bedroom 3 5 6

Study 4 5

Total 33l/s 43l/s

As buildings become more airtight, with lower levels of infiltration, Part F considers the conditions for properties with infiltration rates tighter than 5m3/h.m2 (as a default) and those over 5. It essentially means there are now two design permeability rates and as a result airflow rates will differ based on the chosen design.

Systemair Residential Ventilation Systems Why Buy from Systemair | 21

For a free quotation, please email a copy of your floor plans, sections and elevations to sales@systemair.co.uk.

Call on 01993 778481 for expert advice.

Think Systemair - your trustworthy partner

The One-Stop-Shop for all your ventilation needs.

Manufacturer - producing energy efficient ventilation units for over 35 years.

Design - drawings created in 4 colour CAD by our in-house experts.

Supply - units and fittings from stock.

Installation - by fully qualified fitters at the time to suit your project.

Commissioning - if fitting yourself, we can commission your system when required.

Service - annual service and filter change

Aftercare - experienced staff on hand to help with any enquires.

We‘ve got it covered !

FAQ‘s & TestimonialsQ. Do I need trickle vents and extractor fans?

A. No. The MVHR takes care of all the ventilation requirements for the property meeting 2010 building regulations part F.

Q. How often do I need to change the filters?

A. We recommend the filters are changed once a year to maintain optimum performance. For convenience the controller will also indicate when the filters need replacing.

Q. At what point in the build do I need to consider installing the MVHR system?

A. We recommend the ducting is installed at first fix and if possible be the first trade in at this stage. However to get to this point the design process we offer would ideally have started 6-8 weeks prior. The more time available to complete the design, the better as this will reduce the risk of any delays on site.

Q. Does the MVHR unit have summer bypass?

A. Yes, this is automatically operated on warmer days/months and the point at which the feature is engaged is fully controlled via the control panel to meet your personal needs.

Q. Do I need a cookerhood if I install one of your MVHR systems?

A. Yes you do as the air will need to be filtered to prevent grease build up within the MVHR system ductwork and heat exchanger. We recommend a re-circulating cookerhood as this filters the air but keeps the heat within the kitchen environment. Our extract point(s) in the kitchen will then utilise this heat within the MVHR system.

Q. Do we need a register/valve in every room?A. No, there are no registers in the hallway, landing or vestibule areas as these are neither wet areas with stale air or living areas where peope reside for any length of time. These spaces are transit areas allowing air to move from one room to another.

Q. Can I have MVHR with a log burner?

A. Yes, but the log burner will require its own fresh air supply and in accordance with the manufacturers instructions.

Q. What heating system should I use?A. You can use any type of heating system, gas boiler, heat pump or direct electric as a primary heating source.

22 | Frequently Asked Questions Systemair Residential Ventilation Systems

SAVE VTR 150/K - Heat Recovery Ventilation Unit with integrated cookerhood available in white & stainless steel

Mr Dawson, Chester. “I am extremely impressed with the swift service I received; from quote to delivery, and thank you to all involved“.

Ian of Harrogate. “We installed your Villavent VVX400 heat recovery system in 1987. This has performed faultlessly for the past 27 years and given us a condensation free home for all that time“.

Mrs Deacon. “Great prompt service for my filter order, highly recommend you all“.

D. Bennett, Berkhamsted. “Superb service from start to finish with the supply & Com-missioning of my VSR 300 MVHR system, wouldn‘t use anyone else“.

Mrs Bryant, Bucks. “Great service and engineer very proficient, knowledgeable and efficient carrying out the service on my MVHR unit“.

Colin Mason. “Thank you to everyone involved with the installation of my VR 400 system, I am very pleased with the quality and performance of the system and the way that my order was handled“

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Systemair LtdResidential Systems Office

Avenue TwoStation Lane

WitneyOxfordshire

OX28 4YLTel: 01993 778481

Email: sales@systemair.co.ukwww.systemair.co.ukwww.villavent.co.uk