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Kair™ Whole House
Ventilator (MVHRV) - Akor
Model: KHRVVWH1500
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Continuous Running, Energy Efficient, Heat Recovery Ventilator
For Houses, Offices And Bungalows Providing Clean Air
The KHRVWH1500 - AKOR whole house extract and supply air fan
with heat recovery provides a complete air management solution for any
residential domestic property. Along with two fan units (providing
supply and extract air) the AKOR unit includes an efficient heat
exchanger which transfers the latent heat from the exhausted air to that
of the incoming filtered supply air. In addition the AKOR units enable
the connection of multiple extract points from bathrooms, toilets,
utility and kitchens to one centrally located fan unit.
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| Meets Building Regulations requirements
2 speed airflow selectable
Trickle - 210m³/h /
Boost - 425
m³/h
Up to 70% Heat Recovery
Easy to install (no external access required using core
drill)
Whisper quiet
Continuous running trickle ventilation
Humidity sensor (preset or adjustable)
Low running costs
Unique 'no-screw' installation
Energy savings
Security ventilation™ (no need to open windows)
Health benefit - Produces dramatic improvements of indoor air
quality
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Kair™ KHRVWH1500 - Akor Heat Recovery Ventilators provide a continuous air
change, replacing stale moisture laden air with fresh, warmed air from
outside. Kair™ KHRVWH1500 - Akor controls condensation and eradicates mould
growth problems in house, offices and bungalows and is an integral part of
the Kair Hybrid Heat Recovery Systems.
Unlike conventional extractor fans which suck out and waste expensively
produced heat, Kair KHRVWH1500 - Akor Heat Recovery Ventilators recover up to
70%
of exhaust heat, even when operating on boost mode. The world is becoming
increasingly aware of the enormous cost of energy production, and this,
plus the use of fossil fuels to generate power, is a momentous
environmental issue. Extractor fans potentially waste over a million
kilowatts of energy every year. This is comparable to the total output of
two large power stations. Replacing conventional extractor fans with heat
recovery systems could save at least half of that energy loss.
As long ago as 1989, an article in the British Medical Journal referred
to the health hazards associated with condensation and mould growth in
dwellings. The Statutory Fitness Standard clearly states that dwellings
with inadequate ventilation, or condensation and mould growth problems,
are unfit for human habitation and Building Regulation Guidelines call for
a supply of fresh air and the removal of pollutants.
D.E.T.R Good Practice Note 268, (Energy Efficient Ventilation in
Housing) recommends a continuous air change of 0.5 to 1.0 per hour,
throughout the entire dwelling, and this is best achieved by using
mechanical ventilators.
Kair™ KHRVWH1500 - Akor units, by reducing humidity to optimum levels (Kair
Health Line™), eradicate condensation, prohibit mould growth and
discourage the spread of bacteria, viruses and dust mite activity.
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 Kair™
KHRVWH1500 - Akor Heat Recovery Whole House Ventilators provide a continuous air
change, replacing stale moisture-laden unhealthy air with filtered, fresh,
warmed air from outside the dwelling. The continuous controlling of
Relative Humidity levels ensures that conditions will not exist in which
condensation or mould growth problems can develop and thrive.
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A range of controls are available including:
- Two speed Independent switches for input or extract motors to
create increased positive or negative pressures.
- Humidity sensor – two speeds (trickle or boost)
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The Kair KHRVWH1500 - Akor is designed for easy installation by use of 152mm and
102mm core drilled holes.
Installation can be undertaken entirely within a building with no
requirement for external access, thus reducing installation costs on
high-rise applications.
The unit can be easily unassembled where required to fit through narrow
loft openings. Full installation instructions are provided with the unit.
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Please see separate specification clause leaflet.
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Filters
should be removed at 6 to 12 month intervals subject to site conditions
and replaced or cleaned with a domestic vacuum cleaner or washed if
exceptionally dirty.
Filters are housed internally in easily accessible filter
casings.
The motors are guaranteed for 2 years and are fitted with ‘Sealed for
Life’ bearings, which do not require maintenance or lubrication. Kair™
KHRVWH1500 - Akor Ventilator can be serviced and maintained from inside the
building with no requirement for external access.
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Installation can be carried out by a suitably qualified craftsman and
connected to electrical supply by an electrician in accordance with IEE
Regulations.
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The unit meets current Building Regulations for complete whole house
air changes, also D.E.T.R Energy Efficient Ventilation in Houses Good
Practice Guidelines, Statutory Fitness Standards requirements and N.H.S
Health Strategy requirements.
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| Dimensions (mm)
- Fully assembled |
| Width |
Height |
Depth |
dØ |
| 670 |
780 |
340 |
150 |
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Speed
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Airflow
m3/h
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dBA
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Watts |
Heat
Recovery
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Trickle
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210
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54
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30 |
Up to 70%
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Boost
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425
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60
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70 |
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Voltage
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230V
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Typical Performance figures - Figures are for
individual motors
Airflow measured at motor spigot
Airflow will vary with filter and ducting runs
Assuming an
average of 80% trickle and 20% boost speed
Test with outside air
temperature at 7°C and inside room temperature at 23°C |
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Ventilation is necessary to maintain a healthy and comfortable internal
environment and to rapidly remove pollutants such as moisture, volatile
organic compounds (VOC’s), allergens such as dust, oxides of nitrogen,
carbon monoxide, carbon dioxide, tobacco smoke and unpleasant odours.
Moisture is generally assumed to be the most significant of these
pollutants because of the high rates of generation from cooking, bathing,
washing, drying etc., and the consequential condensation and mould growth
problems. It follows that if the ventilation strategy is based on
controlling this principle pollutant by heat recovery input / extract
ventilation then logically the other indoor pollutants will also be
adequately controlled.
Stale air, and air which is hot or humid, should be replaced at a
reasonable rate. Good ventilation means providing a balance between energy
efficient and healthy indoor air best summed up by the catchphrase ‘build
tight – ventilate right’. The fresh air supply rate should not
normally fall below 5 to 8 l/s per occupant, best achieved by creating
continuous air changes of 0.5 to 1.0 every hour, throughout the entire
dwelling, as specified in D.E.T.R Good Practice Note 268.
Although Building Regulations relate to new buildings, the guidance on
ventilation is applicable to existing dwellings and most important of all,
the regulations are concerned with minimising the risk to health from the
build up of pollutants. The KHRVWH1500 - Akor satisfies all of these criteria.
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| ACCESSORIES |
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| Example ducting accessories
Stock Code: Various
Full ancillary list available on request |
 
 
 
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Switch control
Stock Code: K-2SPC
Two speed switch control |
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In-Line Duct Heater
Stock Code:
DUCDH150-1.2
Duct heater with spigot connection for standard spiral ducts.
Manufactured from Aluzinc-coated sheet steel with a heating
element in stainless steel. The heater has integral overheating
protection with a manual reset function. Suitable for control by
room thermostat. The minimum air volume
required is 100m3/h.
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Humidity Control
Stock code:
K-HC
Automatic humidistat to switch ventilation
modes |
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LCD Hour meter
- 220-240 Volt
Stock code:
K-HRM-240
To verify continuous use or record interruptions to electricity
supply |
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Pen size RH meter
Stock code:
K-SE-PTHGM
Measures the Relative Humidity and temperature levels |
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| REFERENCES |
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- i. Statutory Fitness Standards – Housing Act 1985
- ii. Department Of The Environment F1 Guidance – Means Of
Ventilation
- iii. Airborne Fungal Glossary – Basic Fact About Mould –TRD
- iv. Housing Act – (COSHH) Control Of Substances Hazardous To
Health Regulations – 1988
- v. Optimum Relative Humidity Guide KTIC
- vi. Building Research Establishment. Digest 297 ‘Surface
Condensation And Mould Growth In Dwellings’
- vii. NHS – A Health Strategy For London
- viii. DETR – Energy Efficient Ventilation In Housing – Good
Practice Guide 268 ix. Home Energy Conservation Act 1985 x. British
Standards Institution. Bs 5250. ‘Control Of Condensation In
Buildings’. BSI, London, 1989
- xi. Perera M D A E S And Parkins L M. ‘Build Tight – Ventilate
Right’. Building Services Journal, June 1992. – CIBSE, London,
1992 xii. Property Associated Technical Standards
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