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Working with Daikin since 1980

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Space Air offer hundreds of bespoke HRV accessories complimenting your system

Heat Recovery Ventilation Accessories

www.spaceairsolutions.co.uk

HEAT RECOVERY VENTILATIONSPECIFICATION: HEAT RECOVERY VENTILATION

Why Ventilation?

Daikin’s Heat Recovery Ventilation (HRV)

Daikin HRV is a complete total heat recovery ventilation system and comprises :

a. Total heat exchanger made from specially treated processed paper that allows not only the sensible heat to be transferred but the latent heat. The total efficiency of the Daikin heat exchanger is 75 - 80 %. This heat exchanger satisfies the requirements to control humidity also.

b. Due to being a total heat exchanger (sensible and latent) no drain is required allowing the unit to be installed in any position (upside down, vertical or horizontal) giving total flexibility.

c. Separately controlled low energy (as little as 60 watts) supply and extract fans which will allow for positive supply to pressurise the room to stop ingress of pollution and odours from outside, bathrooms and kitchens.

d. An automatic temperature controlled bypass damper to bypass the heat exchanger when the temperature of the room air is higher than the outside air (summer) to provide free cooling and helps reducing solar heat gain (SAP calculation) and the use of mechanical cooling.

e. State of the art controls which has 7 day time clock, temperature control, fault diagnosis, fan speed control and filter clean indication, from an easy to use wired remote controller which can be installed within 50 meters from the HRV unit.

f. Easy to clean washable filters which only requires cleaning once every 6 or 12 months.

g. Extremely low noise as low as 20.5 dBA.

h. Compact and insulated.

New Building regulations Part L1A “ Conservation of fuel and power in new dwellings” stipulates increased insulation and requirements for

pressure testing of dwellings. This has made Part F “Means of Ventilation” more important to implement. Part F stipulates the reason why

ventilation is necessary (General guidance 0.7 p 6) :

a. Provision of outside air for breathing

b. Dilution and removal of airborne pollutants, including odours

c. Control of excess humidity (arising from water vapour in the

indoor air)

d. Provision of air for fuel-burning appliances

Part F also stipulates a minimum ventilation rate of 0.3 l per sqm. It

also gives guidance to the type of ventilation approved :

1. Background Ventilators

2. Passive stack ventilation

3. Continuous mechanical extract

4. Continuous mechanical supply and extract with heat recovery

• Position anywhere in your home

• Hi/Low fan speed selection

• Positive/Negative fan selection

• 7 day time clock

• Auto/Bypass/Heat exchanger selection

• Filter clean indication

• Self fault diagnosisREM

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In selecting a ventilation system we should bear in mind the energy consumption and its consequence to SAP, TER ( Target Emission Ratings).

Continuous mechanical supply and extract with heat recovery is the best and cost effective method to satisfy and improve these ratings.

The Total Heat Exchange mode (Fig. 1)

In total heat exchange mode the ventilator exchanges the

heat between the exhaust air (from indoor) and the supply

air (from outdoor) by means of a high efficiencies heat

exchanger element. This avoids cold draughts when the

outdoor air is colder than the indoor air.

Bypass mode (Fig. 2)

In Bypass mode the exhaust air bypasses the heat

exchanger element. Fresh cool air is brought directly into

the room and stale warmer air is exhausted to outside.

HRV Operation Modes:

3 & 5 Way distribution box

Reducing & equal insulated tees

Supply & extract

ceiling diffusersRoof supply &

extract cowl

Reducing

connector Wall/soffit supply & extract cowlWall extension ducts

Female & Male

connectors

1, 3 & 5 metre insulated

flexible ducting

HRV ACCESSORIES FROM SPACE AIR:

The HRV unit can operate in 2 modes

Heat Recovery ventilation (HRV) is a complete supply and extract

system where the ventilation rate is controlled via supply and extract

fans. It consist of a heat exchanger where the extracted stale air

is crossed with the supply air where the energy stored in the air

is transferred from the high side to the low side hence the heat

recovery term.

There are several types of heat exchangers, plate heat exchangers

(only sensible heat*) and paper heat exchangers (sensible and

latent*)

Efficiency of heat exchangers are the ratio of heat transferred from

the low side to the high side. Plate heat exchangers efficiency is

sensible efficiency only and would require drains, while paper heat

exchangers are sensible and latent and would not require drains

* Sensible heat is the energy stored in inert gases (oxygen, hydrogen, nitrogen etc). Latent heat is the energy stored in the moisture particles in the air. Outside air in the summer has approximately 50% of the heat stored in the moisture, the extract air has less moisture, while in the winter the extract air from the house has 40% of its energy stored in moisture. Total heat exchangers will not only recover more energy but also assist in humidity control.

What is Heat Recovery Ventilation? (HRV)

Specifically designed and manufactured by Space Air for easy installation without the use of specialist tools. Simply push-fit. VAM Weatherproofed

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Model Name VAM 150F VAM 250F VAM 350F

Air Flow m3/hr (l/sec)3/hr (l/sec)3

Ultra High (UH) 150 (41) 250 (70) 350 (97)

High (H) 150 (41) 250 (70) 350 (97)

Low (L) 110 (30) 155 (43) 230 (64)

External Static Pa

Ultra High (UH) 69 64 98

High (H) 39 39 70

Low (L) 20 20 25

Motor Output Watt 2 x 30 2 x 30 2 x 90

Duct Connection mm 100 150 150

Dimensions HxWxD mm 269 x 760 x 509 269 x 760 x 509 285 x 812 x 800

Weight kg 24 24 33

Operating Sound (UH) (H) (L) dBA* (27) (26.5) (20.5) (28) (27) (21) (32) (32) (24.5)

*Operating sound is measured in an anechoic chamber 1.5m below the centre of the unit.

Larger models and weatherproofi ng are available for commercial use.

SPECIFICATION: HEAT RECOVERY VENTILATION

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Call: 01483 252 240

Working with Daikin since 1980

Space Air Solutions Ltd:Willway Court, 1 Opus Park, Moorfi eld Road, Guildford, Surrey GU1 1SZ Tel: 01483 252 240 Fax: 01483 574 835 Email: solutions@spaceair.co.ukGuildford • Bristol • Leeds • Birmingham • Manchester

Daikin’s unique position as a manufacturer of air conditioning equipment, compressors and refrigerants has led to its close involvement in environmental issues. For several years Daikin has been a leader in the provision of environmentally friendly products. This demands the eco design and development of a wide range of products and energy management systems, which involves energy conservation and the reduction of waste.

Daikin Europe N.V. is ISO 14001 approved. This assures an effective environmental management system in order to help protect human health and the environment from the potential impact of our activities, products and services and to assist in maintaining and improving the quality of the environment.

Daikin Europe N.V. is approved by LRQA for its Quality Management System in accordance with the ISO 9001 standard.ISO 9001 pertains to quality assurance regarding design, development, manufacturing as well as to services related to the product.

Space Airconditioning plc is approved by QAS International Ltd for its Quality Management System in accordance with the ISO 9001 standard.ISO 9001 pertains to quality assurance regarding design, development, manufacturing as well as to services related to the product.

Space Airconditioning plc is approved by QAS International Ltd for its Environmental Management System in accordance with the ISO 14001 standard. Assessed for the Distribution of Air Conditioning Equipment and Manufacture of Ancillary components, the ISO 14001 standard acknowledges our efforts to reduce the environmental impact of our business activities.

Space Airconditioning plc and its subsidiary Space Air Solutions Ltd have compiled this brochure to the best of its knowledge. Space Air explicitly rejects any liability for any direct damage arising from or related to the use and/or interpretation of this brochure. This document is produced by and is the property of Space Air. All copyrights are reserved.