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VCD In-line spiral duct Single Blade Damper

VCD In-line spiral duct Single Blade Damper Product Part Number 100mm Single Blade Damper - DS-SDD100 125mm Single Blade Damper - DS-SDD125 150mm Single Blade Damper - DS-SDD150 200mm Single Blade Damper - DS-SDD200 250mm Single Blade Damper - DS-SDD250 300mm Single Blade Damper - DS-SDD300

GBP 8.76

1

Linear Duct Mounted Grille

Linear Duct Mounted Grille Spiral duct mounted grilles are designed to fit directly to circular spiral duct without needing special take-off. When using to supply air, the angled hit and miss sliding damper acts as an air deflector as well as a damper. Spiral duct mounted grilles are suitable for supply and extract airflows from spiral round air ducts. They are suitable for applications such as offices, shopping centres and any location that is using exposed ductwork. Main Features: Available for both supply and extract airflow Suitable for round air ducts Available in a large range of sizes 32mm frame Electrostatic powder coating We can also supply spiral duct mounted grilles to your required size and colour Colour The standard stock colour is anodised aluminium but are also available in RAL 9010 and 9016 Depending on quantity ordered it is also possible to have the Duct grilles in any RAL colour Material: Up to Ø250mm size is manufactured from extruded aluminium Installation: Cut hole out of duct with nibbler or saw and screw to round air duct

GBP 76.50

1

Airflow 125mm cap for distribution box

Airflow 125mm cap for distribution box Product Part Number Airflow 125mm Cap - 90000267 Description Airflex Pro is a quick and easy to fit system of semi-rigid ducting that can result in up to 70% time saving during the on-site installation process, compared to rigid or spiral duct methods.

GBP 3.83

1

Airflow Airflex 90° Horizontal Elbow

Airflow Airflex 90° Horizontal Elbow Product Part Number Airflex 90° Horizontal Bend - 90000248 Description Airflex Pro Quick and easy to fit system of semi-rigid ducting that can result in up to 70% time saving during the on-site installation process compared to rigid or spiral duct methods The pipe is manufactured from material with an anti-static, non-porous and odourless lining Perfect for long duct runs, devoid of joins It is quick and simple to install thanks to the zero leakage of its push fit connections to other accessories in the range

GBP 11.64

1

Flexible Circular Connector

Flexible Circular Connector Product part Number 100mm connector - FDC-100 125mm connector - FDC-125 150mm connector - FDC-150 180mm connector - FDC-180 200mm connector - FDC-200 Description The flexible duct connector used for neutralizing vibrations in circular ventilation ducts caused by air handling units, fans, and other HVAC equipment. Apart from the anti-vibration properties, the flexible connector is highly adjustable and can be slid over nonstandard duct diameters - useful when joining with other materials rather than standard metal spiral duct. Other models available by order: We can also supply 250mm FDC-250 315mm FDC-315 355mm FDC-355 400mm FDC-400 450mm FDC-450 500mm FDC-500 560mm FDC-560 630mm FDC-630

GBP 12.72

1

Metal T Piece

Metal T Piece Product Part Number 100mm T Piece - T100M 125mm T Piece - T125M 150mm T Piece - T150M 160mm T Piece - T160M 180mm T Piece - T180M 200mm T Piece - T200M Description Metal T piece, main trunk and single branch off in size of your choice, constructed of high quality durable galvanised metal All spigots are male and will fit inside galvanised spiral or other female fittings NOTE: Supplied without seals Made in the UK Perfectly suited for ducting your ventilation system, kitchen extractor fan, bathroom fan or in-line extract fans Can be used to connect long ductwork run for a variety of purposes including whole house ventilation, passive stack vent, positive input, air conditioning, HVAC, and heat recovery systems. Compatibility Compatible with most other lead manufactures for galvanised metal ducting Performance Solid rigid ducting is suitable for use in all buildings to provide superior airflow performance vs. comparative size rectangular or flexible PVC or aluminium duct. Suitable to use in compliance with Part F Building Regulations. Installation To provide the best performance in airtightness and durability we recommend you provide greater mechanical strength to a joint by using a combination of plastic ducting sealant and aluminium duct sealing tape Apply duct sealant to the male fitting Push together Apply aluminium duct sealing tape over joint Alternatively, you can use self-sealing fittings that speed up the time taken by up to 70% and can be easily dismantled Insulation of Ductwork It is important that any ducting located in a cold area (e.g. loft space) should be insulated. The insulation needs to be

GBP 17.52

1

Zehnder Caladair Silvertop 52 First Eco Commercial MVHR Unit

Zehnder Caladair Silvertop 52 First Eco Commercial MVHR Unit Product Part Number Caladair SILVERTOP 52 First Eco - CAL11 Description Additional Zoning options Optional extras are available to be able to control zones via Caladair Commercial Units. Zones are controlled with electric duct dampers that can be operated by a few solutions: PIR sensor – will detect occupation and increase airflow Co2 sensor – will detect high levels of Co2 and increase airflow Wall switch – increase airflow by pressing switch Light – increase airflow when the light is switched on BMS – increase or decrease zoned areas and unit by BMS system The dampers can also be set to various airflow rates when open or close Please contact us on 028 2827 5150 for more options on how to add these extras to your system Heating & Cooling Available heating and cooling accessories include: Electric Preheater to prevent frost affecting the unit Electric Post heater to increase room temperature Water heater that can be used as heater a pre or post heater Energy Exchanger Highly efficient counter flow plate energy exchanger constructed of aluminium designed for a lifetime use and provides 90% or more heat recovery Motors This unit has 2 x low energy consumption, highly efficient backward curved EC motors with heat and speed protection Installation Indoor installation Compact design and small footprint, top connections via double lips circular connectors (except size 52) for an easy, quick, airtight and cost-efficient installation (no adapters). Insulation of Ductwork We recommend you use Metal Spiral ducting and fittings due to superior strength. Dimensions Model Length (mm) Width (mm) Height (mm) Silvertop 52 2185

GBP 15010.69

1

Zehnder Caladair Silvertop 23 First Eco Commercial MVHR Unit

Zehnder Caladair Silvertop 23 First Eco Commercial MVHR Unit Product Part Number Caladair SILVERTOP 23 First Eco - CAL09 Description Additional Zoning options Optional extras are available to be able to control zones via Caladair Commercial Units. Zones are controlled with electric duct dampers that can be operated by a few solutions: PIR sensor – will detect occupation and increase airflow Co2 sensor – will detect high levels of Co2 and increase airflow Wall switch – increase airflow by pressing switch Light – increase airflow when the light is switched on BMS – increase or decrease zoned areas and unit by BMS system The dampers can also be set to various airflow rates when open or close Please contact us on 028 2827 5150 for more options on how to add these extras to your system Heating & Cooling Available heating and cooling accessories include: Electric Preheater to prevent frost affecting the unit Electric Post heater to increase room temperature Water heater that can be used as heater a pre or post heater Energy Exchanger Highly efficient counter flow plate energy exchanger constructed of aluminium designed for a lifetime use and provides 90% or more heat recovery Motors This unit has 2 x low energy consumption, highly efficient backward curved EC motors with heat and speed protection Installation Indoor installation Compact design and small footprint, top connections via double lips circular connectors (except size 52) for an easy, quick, airtight and cost-efficient installation (no adapters). Insulation of Ductwork We recommend you use Metal Spiral ducting and fittings due to superior strength. Dimensions Model Length (mm) Width (mm) Height (mm) Silvertop 23 1735 1065 1340 Accessories In addition to a choice of compatible ducting systems a full range of controls, sensors, in-line silencers, floor/wall/ceiling inlet and outlet diffusers are available to complete the installation. Guarantee 2-year parts

GBP 9491.10

1

Zehnder Caladair Silvertop 06 First Eco Commercial MVHR Unit

Zehnder Caladair Silvertop 06 First Eco Commercial MVHR Unit Product part Number Caladair SILVERTOP 06 First Eco - CAL06 Description Additional Zoning options Optional extras are available to be able to control zones via Caladair Commercial Units. Zones are controlled with electric duct dampers that can be operated by a few solutions: PIR sensor – will detect occupation and increase airflow Co2 sensor – will detect high levels of Co2 and increase airflow Wall switch – increase airflow by pressing switch Light – increase airflow when the light is switched on BMS – increase or decrease zoned areas and unit by BMS system The dampers can also be set to various airflow rates when open or close Please contact us on 028 2827 5150 for more options on how to add these extras to your system Heating & Cooling Available heating and cooling accessories include: Electric Preheater to prevent frost affecting the unit Electric Post heater to increase room temperature Water heater that can be used as heater a pre or post heater Energy Exchanger Highly efficient counter flow plate energy exchanger constructed of aluminium designed for a lifetime use and provides 90% or more heat recovery Motors This unit has 2 x low energy consumption, highly efficient backward curved EC motors with heat and speed protection Installation Indoor installation Compact design and small footprint, top connections via double lips circular connectors (except size 52) for an easy, quick, airtight and cost-efficient installation (no adapters). Insulation of Ductwork We recommend you use Metal Spiral ducting and fittings due to superior strength. Dimensions Model Length (mm) Width (mm) Height (mm) Silvertop 06 1105 570 1040 Accessories In addition to a choice of compatible ducting systems a full range of controls, sensors, in-line silencers, floor/wall/ceiling inlet and outlet diffusers are available to complete the installation. Guarantee 2-year parts

GBP 4822.78

1

Zehnder Caladair Silvertop 15 First Eco Commercial MVHR Unit

Zehnder Caladair Silvertop 15 First Eco Commercial MVHR Unit Product Part Number Caladair SILVERTOP 15 First Eco - CAL08 Description Additional Zoning options Optional extras are available to be able to control zones via Caladair Commercial Units. Zones are controlled with electric duct dampers that can be operated by a few solutions: PIR sensor – will detect occupation and increase airflow Co2 sensor – will detect high levels of Co2 and increase airflow Wall switch – increase airflow by pressing switch Light – increase airflow when the light is switched on BMS – increase or decrease zoned areas and unit by BMS system The dampers can also be set to various airflow rates when open or close Please contact us on 028 2827 5150 for more options on how to add these extras to your system Heating & Cooling Available heating and cooling accessories include: Electric Preheater to prevent frost affecting the unit Electric Post heater to increase room temperature Water heater that can be used as heater a pre or post heater Energy Exchanger Highly efficient counter flow plate energy exchanger constructed of aluminium designed for a lifetime use and provides 90% or more heat recovery Motors This unit has 2 x low energy consumption, highly efficient backward curved EC motors with heat and speed protection Installation Indoor installation Compact design and small footprint, top connections via double lips circular connectors (except size 52) for an easy, quick, airtight and cost-efficient installation (no adapters). Insulation of Ductwork We recommend you use Metal Spiral ducting and fittings due to superior strength. Dimensions Model Length (mm) Width (mm) Height (mm) Silvertop 15 1590 750 1200 Accessories In addition to a choice of compatible ducting systems a full range of controls, sensors, in-line silencers, floor/wall/ceiling inlet and outlet diffusers are available to complete the installation. Guarantee 2-year parts

GBP 7184.80

1

Zehnder Caladair Silvertop 08 First Eco Commercial MVHR Unit

Zehnder Caladair Silvertop 08 First Eco Commercial MVHR Unit Product Part Number Caladair SILVERTOP 08 First Eco - CAL07 Description Additional Zoning options Optional extras are available to be able to control zones via Caladair Commercial Units. Zones are controlled with electric duct dampers that can be operated by a few solutions: PIR sensor – will detect occupation and increase airflow Co2 sensor – will detect high levels of Co2 and increase airflow Wall switch – increase airflow by pressing switch Light – increase airflow when the light is switched on BMS – increase or decrease zoned areas and unit by BMS system The dampers can also be set to various airflow rates when open or close Please contact us on 028 2827 5150 for more options on how to add these extras to your system Heating & Cooling Available heating and cooling accessories include: Electric Preheater to prevent frost affecting the unit Electric Post heater to increase room temperature Water heater that can be used as heater a pre or post heater Energy Exchanger Highly efficient counter flow plate energy exchanger constructed of aluminium designed for a lifetime use and provides 90% or more heat recovery Motors This unit has 2 x low energy consumption, highly efficient backward curved EC motors with heat and speed protection Installation Indoor installation Compact design and small footprint, top connections via double lips circular connectors (except size 52) for an easy, quick, airtight and cost-efficient installation (no adapters). Insulation of Ductwork We recommend you use Metal Spiral ducting and fittings due to superior strength. Dimensions Model Length (mm) Width (mm) Height (mm) Silvertop 08 1265 700 1150 Accessories In addition to a choice of compatible ducting systems a full range of controls, sensors, in-line silencers, floor/wall/ceiling inlet and outlet diffusers are available to complete the installation. Guarantee 2-year parts

GBP 4980.61

1

Zehnder Caladair Silvertop 35 First Eco Commercial MVHR Unit

Zehnder Caladair Silvertop 35 First Eco Commercial MVHR Unit Product Part Number Caladair SILVERTOP 35 First Eco - CAL10 Description Additional Zoning options Optional extras are available to be able to control zones via Caladair Commercial Units. Zones are controlled with electric duct dampers that can be operated by a few solutions: PIR sensor – will detect occupation and increase airflow Co2 sensor – will detect high levels of Co2 and increase airflow Wall switch – increase airflow by pressing switch Light – increase airflow when the light is switched on BMS – increase or decrease zoned areas and unit by BMS system The dampers can also be set to various airflow rates when open or close Please contact us on 028 2827 5150 for more options on how to add these extras to your system Heating & Cooling Available heating and cooling accessories include: Electric Preheater to prevent frost affecting the unit Electric Post heater to increase room temperature Water heater that can be used as heater a pre or post heater Energy Exchanger Highly efficient counter flow plate energy exchanger constructed of aluminium designed for a lifetime use and provides 90% or more heat recovery Motors This unit has 2 x low energy consumption, highly efficient backward curved EC motors with heat and speed protection Installation Indoor installation Compact design and small footprint, top connections via double lips circular connectors (except size 52) for an easy, quick, airtight and cost-efficient installation (no adapters). Insulation of Ductwork We recommend you use Metal Spiral ducting and fittings due to superior strength. Dimensions Model Length (mm) Width (mm) Height (mm) Silvertop 52 1950 1210 1495 Accessories In addition to a choice of compatible ducting systems a full range of controls, sensors, in-line silencers, floor/wall/ceiling inlet and outlet diffusers are available to complete the installation. Guarantee 2-year parts

GBP 10401.66

1

Metal 45° Bend

Metal 45° Bend Product Part Number 100mm Metal Bend - B45100M 125mm Metal Bend - B45125M 150mm Metal Bend - B45150M 160mm Metal Bend - B45160M 180mm Metal Bend - B45180M 200mm Metal Bend - B45200M Description 45° bend metal is constructed of galvanised metal and features 2 male spigots, which will fit inside flexible hose or round pipe. Best used with galvanised steel spiral ducting (round metal ducting - P100M-1). NOTE: Supplied without rubber seals Our metal ducting is manufactured in the UK with top quality materials that will supply a durable product suitable for domestic and commercial systems It is perfectly suited for ducting your ventilation system, kitchen extractor fan, bathroom fan or in-line extract fans It can be used as a part of a long ductwork run for a variety of purposes including whole house ventilation, passive stack vent, positive input, air conditioning, HVAC, and heat recovery systems. Performance Galvanised metal ducting is suitable for use in all buildings to provide superior airflow performance vs. comparative size rectangular or flexible PVC or Aluminium duct. It is suitable to use in compliance with Part F Building Regulations. Metal ducting is best suited for larger ductwork due to its superior strength. Compatibility Compatible with most other lead manufacturers for galvanised metal ducting Installation To provide the best performance in airtightness and durability we recommend you provide greater mechanical strength to a joint by using a combination of plastic ducting sealant and aluminium duct sealing tape Apply duct sealant to the male fitting Push together Apply aluminium duct sealing tape over joint Insulation of Ductwork It is important that any ducting located in colder areas, such as loft spaces, are always insulated. The insulation needs to be the equivalent of 25mm thick and have a thermal conductivity of 0.04W/ (m.k) or less. This ensures that condensation doesn’t form due to the difference in air temperature inside the duct when compared to the air temperature in the cold space.

GBP 6.07

1

Verplas 125mm - PVC Self Seal Connector Duct to Fitting

Verplas 125mm - PVC Self Seal Connector Duct to Fitting Product Part Number 125mm - PVC Self Seal Connector duct to fitting - VSSC125PF Description Used to connect 125mm ducting to 125mm fitting Zero air leakage No tape or sealant required Quick and easy to instal Duct to duct also available - VSSC125PP Top Quality UK Manufactured duct to duct connectors Our range of plastic ducting is UK manufactured with top quality materials that will supply a durable product suitable for domestic and commercial systems It is perfectly suited for ducting your Ventilation system, Kitchen extractor fan, bathroom fan or In-Line Extract Fans It can be used as a part of a long ductwork run for a variety of purposes including whole house ventilation, passive stack vent, positive input, air conditioning, HVAC, and Heat Recovery Systems Performance Solid Rigid ducting systems are suitable for use in all buildings to provide superior airflow performance vs. comparative size rectangular or flexible pvc or Aluminium duct. Suitable to use in compliance with Part F Building Regulations. Insulation of Ductwork It is important that any ducting located in a cold area (e.g. loft space) to be insulated. The insulation needs to be the equivalent of 25mm thick and have a thermal conductivity of 0.04W/(m.k) or less. This ensures that condensation doesn’t form due to the difference in air temperature inside the duct when compared to the air temperature in the cold space. If you don’t have a loft space there is still a need for insulated ducting on the intake and exhaust legs, as they will be carrying cold air in a warm space. The level of insulation can be achieved by wrapping PVC duct in a layer of 25mm duct wrap that has a silver foil face on a 25mm rockwool It is also worth noting that foil wrap with air bubbles (bubble wrap) is no longer applicable in building control regulations Sizes Self Seal duct to fitting is available in 125mm if you require larger ductwork we recommend you use Metal Spiral ducting and fittings due to superior strength

GBP 10.13

1

Quiet-Vent Round Metal Ducting

Quiet-Vent Ventilation Round Metal Ducting Product Part Number 100mm Metal Pipework x 1 meter - P100M-1 125mm Metal Pipework x 1 meter - P125M-1 150mm Metal Pipework x 1 meter - P150M-1 180mm Metal Pipework x 1 meter - P180M-1 200mm Metal Pipework x 1 meter - P200M-1 Description Galvanised spiral metal, available in different sizes, and available in 1-meter lengths. Duct length can be joined using Metal Male Duct Connectors. Compatibility Compatible with most other leading manufacturers for galvanised metal ducting. Performance Solid rigid ducting is suitable for use in all buildings to provide superior airflow performance vs. comparative size rectangular or flexible PVC or aluminium duct. Suitable to use in compliance with Part F Building Regulations. Installation To provide the best performance in airtightness and durability we recommend You provide greater mechanical strength to a joint by using a combination of plastic ducting sealant and aluminium duct sealing tape Apply duct sealant to the male fitting Push together Apply aluminium duct sealing tape over joint Alternatively, you can use self-sealing fittings that speed up the time taken by up to 70% and can be easily dismantled Insulation of Ductwork It is important that any ducting located in a cold area (e.g. loft space) be insulated. The insulation needs to be the equivalent of 25mm thick and have a thermal conductivity of 0.04W/(m.k) or less. This ensures that condensation doesn’t form due to the difference in air temperature inside the duct when compared to the air temperature in the cold space. If you don’t have a loft space there is still a need for insulated ducting on the intake and exhaust legs, as they will be carrying cold air in a warm space. The level of insulation can be achieved by wrapping the duct in a layer of 25mm duct wrap that has a silver foil face on a 25mm Rockwool It is also worth noting that foil wrap with air bubbles (bubble wrap) is no longer applicable in building control regulations Available Sizes 100mm x 1 Meter Round Metal Ducting 125mm x 1 Meter Round Metal Ducting 150mm x 1 Meter Round Metal Ducting 180mm x 1 Meter Round Metal Ducting 200mm x 1 Meter Round Metal Ducting

GBP 8.06

1

Metal 90° Bend

Metal 90° Bend Product Part Number 100mm - B90100M 125mm - B90125M 150mm - B90150M 160mm - B90160M 180mm - B90180M 200mm - B90200M Description 90 degree galvanized metal elbow bend which uses 2 male spigots, which will fit inside round pipe or flexible hose. Best used with galvanised steel spiral ducting (round metal ducting - P100M-1). NOTE: Supplied without rubber Seals Our metal ducting is UK manufactured with top quality materials that will supply a durable product suitable for domestic and commercial systems It is perfectly suited for ducting your ventilation system, kitchen extractor fan, bathroom fan or in-line extract fans It can be used as a part of a long ductwork run for a variety of purposes including whole house ventilation, passive stack vent, positive input, air conditioning, HVAC, and heat recovery systems. Compatibility Compatible with most other lead manufacturers for galvanised metal ducting Performance Galvanised Metal ducting is suitable for use in all buildings to provide superior airflow performance vs. comparative size rectangular or flexible PVC or aluminium duct. It is suitable to use in compliance with Part F Building Regulations. Metal ducting is best suited for larger ductwork due to its superior strength. Installation To provide the best performance in airtightness and durability we recommend you provide greater mechanical strength to a joint by using a combination of plastic ducting sealant and aluminium duct sealing tape Apply duct sealant to the male fitting Push together Apply aluminium duct sealing tape over joint Insulation of Ductwork It is important that any ducting located in colder areas, such as loft spaces, are always insulated. The insulation needs to be the equivalent of 25mm thick and have a thermal conductivity of 0.04W/(m.k) or less. This ensures that condensation doesn’t form due to the difference in air temperature inside the duct when compared to the air temperature in the cold space. If you don’t have a loft space there is still a need for insulated ducting on the intake and exhaust legs, as they will be carrying cold air in a warm space. The level of insulation can be achieved by wrapping duct in a layer of 25mm duct wrap that has a silver foil face on a 25mm rockwool

GBP 6.82

1

Quiet-Vent Metal 45o Pressed Bend with seals

Quiet-Vent Metal 45° Bend With Seals Product Part Number 125mm - QV-B45125M 150mm - QV-B45150M 180mm - QV-B45180M Description Quiest-Vent 45° bend metal is constructed of galvanised metal, it uses 2 male spigots which will fit within flexible hose or round pipe. -Can be use with galvanised steel spiral ducting (round metal ducting - P100M-1) Our metal ducting is manufactured in the UK with top quality materials that will supply a durable product suitable for domestic and commercial systems It is perfectly suited for ducting your ventilation system, kitchen extractor fan, bathroom fan or in-line extract fans It can be used as a part of a long ductwork run for a variety of purposes including whole house ventilation, passive stack vent, positive input, air conditioning, HVAC, and heat recovery systems. Performance Galvanised metal ducting is suitable for use in all buildings to provide superior airflow performance vs. comparative size rectangular or flexible PVC or Aluminium duct. It is suitable to use in compliance with Part F Building Regulations. Metal ducting is best suited for larger ductwork due to its superior strength. Compatibility Compatible with most other lead manufacturers for galvanised metal ducting Installation To provide the best performance in airtightness and durability we recommend you provide greater mechanical strength to a joint by using a combination of plastic ducting sealant and aluminium duct sealing tape Apply duct sealant to the male fitting Push together Apply aluminium duct sealing tape over joint Insulation of Ductwork It is important that any ducting located in colder areas, such as loft spaces, are always insulated. The insulation needs to be the equivalent of 25mm thick and have a thermal conductivity of 0.04W/ (m.k) or less. This ensures that condensation doesn’t form due to the difference in air temperature inside the duct when compared to the air temperature in the cold space. If you don’t have a loft space there is still a need for insulated ducting on the intake and exhaust legs, as they will be carrying cold air in a warm space. The level of insulation can be achieved by wrapping duct in a layer of 25mm duct wrap that has a silver foil face on a 25mm rockwool It is also worth noting that foil wrap with air bubbles (bubble wrap) is no longer applicable in building control regulations Available Sizes 125mm 150mm 180mm

GBP 6.16

1

Quiet-Vent Metal 90o Pressed Bend with seals

Metal 90° Bend With Seals Product Part Number 125mm - QV-B90125M 150mm - QV-B90150M 180mm - QV-B90180M Description 90 degree galvanized metal elbow bend. Uses 2 Male Spigots which will fit round pipe or flexible hose. Reccommended to be used along with galvanised steel spiral ducting(P100M-1) Our metal ducting is UK manufactured with top quality materials that will supply a durable product suitable for domestic and commercial systems It is perfectly suited for ducting your ventilation system, kitchen extractor fan, bathroom fan or in-line extract fans It can be used as a part of a long ductwork run for a variety of purposes including whole house ventilation, passive stack vent, positive input, air conditioning, HVAC, and heat recovery systems. Compatibility Compatible with most other lead manufacturers for galvanised metal ducting Performance Galvanised Metal ducting is suitable for use in all buildings to provide superior airflow performance vs. comparative size rectangular or flexible PVC or aluminium duct. It is suitable to use in compliance with Part F Building Regulations. Metal ducting is best suited for larger ductwork due to its superior strength. Installation To provide the best performance in airtightness and durability we recommend you provide greater mechanical strength to a joint by using a combination of plastic ducting sealant and aluminium duct sealing tape Apply duct sealant to the male fitting Push together Apply aluminium duct sealing tape over joint Insulation of Ductwork It is important that any ducting located in colder areas, such as loft spaces, are always insulated. The insulation needs to be the equivalent of 25mm thick and have a thermal conductivity of 0.04W/(m.k) or less. This ensures that condensation doesn’t form due to the difference in air temperature inside the duct when compared to the air temperature in the cold space. If you don’t have a loft space there is still a need for insulated ducting on the intake and exhaust legs, as they will be carrying cold air in a warm space. The level of insulation can be achieved by wrapping duct in a layer of 25mm duct wrap that has a silver foil face on a 25mm rockwool It is also worth noting that foil wrap with air bubbles (bubble wrap) is no longer applicable in building control regulations Available Sizes 125mm 150mm 180mm

GBP 7.90

1

Airflow Geothermal Kit

Airflow Geothermal Kit Product Part Number Airflow Geothermal Kit - AFGEOTHERM Description The Brine to Air Exchanger enhances the thermal efficiency of your MVHR unit by provided additional preheating to your unit during the winter and also helps to cool the air during the summer. The Brine to Air Exchanger uses the warmth in the ground to maintain the brine’s temperature of 8 - 12°C. A 1.2 m deep flexible polyethylene under-soil tube pumps brine through a loop. To increase the heat exchange the tube should be laid directly under the soil in a sand bed. The minimum space between the parallel tubes should be 0.5 m. Alternatively to laying the tube horizontally a vertical bore can be used. Operation Brine to Air Energy collector can work either in automatic or manual mode. In automatic mode operation of the circulation pump is controlled by the MVHR unit. The pump circulates the brine when the outside air temperature falls below 5°C or when actual supply air temperature is higher than the set value. System can be switched into the manual mode by using an operation switch. In this mode the circulation pump is always turned on regardless of the outdoor air temperature. Installation Brine to air heat exchanger is mounted in-line before mvhr unit. It is important that the air flows through the heat exchanger in horizontal direction. To provide optimum performance it is recommended that approx. 1m of straight duct is mounted upstream and downstream of the brine to air heat exchanger. The ducting should be done with Airflex ISO system to avoid creation of the condensation. Alternatively insulated spiral ducting can be used. Pipework and connection between hydraulic kit and brine to air heat exchanger shall be provided on site. The pipe connections of the hydraulic kit are ¾” IG. The quick vent valve must be installed at the highest point of the pipework. It is recommended to install undersoil tube when outdoor air is above 5°C. The area where the undersoil tube is laid should not be built over so it is guaranteed that seeping rainwater can contribute to the thermal regeneration of the soil. The filling of the system is carried out via feed and drain cock located on the hydraulic kit. During this operation take care to avoid air entering the system. After the installation of the undersoil pipework, system should be tested at high pressure for tightness check. How does a brine Geothermal system work A network of brine (salty water) filled pipes are buried at a depth of approx 1.5 meters and connect to the air intake of a heat recovery ventilation system via a heat exchanger. The geothermal ducts use the energy stored in the ground. At a depth of 1 - 2 meters, the ground temperature in the UK varies between +8 and +12 ºC depending on the season and on the soil type. By using the relatively stable temperature at this, the efficiency of the ventilation system is greatly improved This provides a source of heating or cooling for a building. As an example, if in the winter months the outside temperature is -5ºc, the ground

GBP 2809.33

1

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