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Duplexvent DV90SCK Professional Line Top Entry - Up to 330 m 3 /hr air volume

Triple Filter Design

post-heater, the unit keeps the indoor air temperature at the required temperature level at all times hence saving energy especially during the winter period. The DV90SCK unit is designed with a unique triple filter facility including a F7 pollen filter which provides additional protection against invisible, harmful particles and creates an ultra hygienic environment, particularly relevant for those suffering from asthma or other respiratory conditions. Having the latest, low energy EC fan technology, the DV90SCK complies with the ErP 2015 standards. The unit comes with an outstanding 5 year warranty + and is SAP Appendix Q eligible.

The unit is made ​of a galvanised steel double-skin casing which is powder coated both internally and externally to meet hygiene requirements. Moreover, the 12mm thick insulation in the casing avoids any thermal bridging and significantly reduces noise levels. The DV90SCK includes an easily removable, plastic heat exchanger which transfers warmth from the outgoing waste airstream into the incoming fresh air where its thermal efficiency exceeds 90%. At no point do the airstreams mix. The unit includes the brand new smart frost protection facility which significantly reduces the energy consumed to protect the heat exchanger from freezing (see below for more information). Fitted with an additional electric

The majority of the MVHR units in the U.K incorporate G3 or G4 coarse filters on the extract / supply air side. These filters catch only coarse particles such as insects and leaves to protect the heat exchanger. F7 fine filters on the other hand are highly efficient, catch invisible particles such as pollen, spore, bacterium and dust entering the lungs . Duplexvent Professional Line units are the only MVHR units which incorporate triple filter design combining G4 course filters with the F7 fine filter. This significantly improves the indoor air quality and lowers your maintenance costs.

G4 Filter

F7 Filter

New Smart Frost Protection

100% Automatic Bypass

Exhaust Air

Outdoor Air

The unit is equipped with an automatic, 100% bypass which totally isolates the heat exchanger so that no air passes through it. This provides effective cooling in the summer season.

Traditional Frost Protection Logic

New Smart Frost Protection Logic

Traditional Frost Protection Logic

New Smart Frost Protection Logic

5

5

1

1

1

1

+X°C Supply Air

+X°C Supply Air

ca.+21°C Extract Air (Defrosting)

+X°C Supply Air

ca.+21°C Extract Air

+X°C Supply Air

ca.+21°C Extract Air (Defrosting)

ca.+21°C Extract Air

FH

FH

100%

100%

~40%

~40%

Supply Air to the dwelling

Extract Air from the dwelling

100%

100%

Controls

3

3

3

3

100%

100%

Four Speed Switch An alternative to the cooker hood control is the manually operated 4 speed switch which allows simple unit operation Duplexvent Slim-Line cooker hoods are equipped with a handy sliding glass panel which incorporates a fluorescent lamp. The hoods have detachable grease filters which can be easily maintained. Power is adjusted via an integrated four speed switch. Duplexvent Slim-Line Cooker Hood Colour options of white or grey

~60%

~60%

2

2

ca. Exhaust Air +6°C

ca. Exhaust Air +6°C

Outdoor Air ca.–10°C

Outdoor Air ca.–10°C

Outdoor Air ca.–10°C

Outdoor Air ca.–10°C

Exhaust Air ca. 0°C

Exhaust Air ca. 0°C

EPH

EPH

ca.0°C

ca.0°C

6

6

2

2

4

4

Timing and energy consumption graph when frost heater is used (ca. 50% less energy consumption)

Timing and energy consumption graph when frost heater is used (ca. 50% less energy consumption)

Timing and energy consumption graph when electric pre-heater is used

Timing and energy consumption graph when electric pre-heater is used

(W) Power

Power (W)

(W) Power

Power (W)

Time

Time

Time

Time

On the traditional frost protection method, the outdoor air is pre-heated before passing through the heat exchanger. This way the unit could still provide balanced ventilation even when the frost protection was on. However, the electric heater kicks in intermittently hence consumes more energy than needed.

The new Smart Frost Protection method works in a more energy efficient manner which constantly monitors the heat exchanger conditions and uses the frost heater only when necessary. This significantly reduces the energy consumption and provides more heat recovery throughout the winter season.

when required. ● Easy to install ● Manual selection of the fan speed ● 100% adjustable speed levels ● User friendly for quick and simple control.

• Electric pre-heater • Frost heater • Electric bypass damper 4 5 6

• Supply air fan • Exhaust air fan • Heat exchanger 1 2 3

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