Finvector Perimeter Heating - Dunham-Bush · 2016-09-19 · Hydrocourse Trench Heating 23...

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FinvectorPerimeterHeating

Products that perform... By people who care

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contents

Identification

IntroductionThis booklet provides comprehensive information about Finvector perimeter heating, with guidance on selection, application, use and supply.

Dunham-Bush Finvector consists of steel casings which house finned tube elements with linear aluminium grilles.

Finvector provides natural convection heating around the room perimeter and produces a warm air curtain, which off-sets down draughts and heat losses, to ensure comfortable conditions. It is suitable for operation with a pumped hot water or low pressure steam system.

AuthorityDunham-Bush Ltd., operates a quality control system and is a registered company of assessed capability ISO 9001:2000

Page

identiFication 2

Introduction 2

Authority 2

DeScrIpTIOn 3-6

range 2

casings 3

elements 3

PerFormance 7-8

casing outputs linear grille 7

composition/Manufacture 9-11

Heat output factor graphs 11

Maximum touch temperatures 6

AppLIcATIOnS 12

General considerations 12

Determining element requirements 12-14

provision for expansion 16

casing dimensions 17-19

engineeringSpecIFIcATIOn 20-22

cOnSTrucTIOn 22

Handling 22

Storage 22

preparation 22

Installation details 22

Maintenance 22

prIceS, cOnDITIOnS OF SALe 22

Supply 22

Ordering 22

Hydrocourse Trench Heating 23

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Description

Style FA

Style SA

Style TA

casing StylesrangeThe range of Finvector casings with limitations of single and double row elements with and without dampers is shown on pages 4 to 5. The full range of casings and suitable element types is shown in the performance section of the booklet.

casingsFinvector casing, 60mm and 90mm wide is offered in three styles – Front outlet, Sloping outlet and Top outlet with extruded aluminium alloy shadowline linear grilles. These variations are indicated as follows:

6 – 60mm wide casing 9 – 90mm wide casing T – Top outlet S – Sloping outlet F – Front outlet A – extruded aluminium alloy shadowline grille I – Inlet grille 300, 450, 525 etc. casing height mm

The symbols combine to identify the casing type.

examples: Finvector casing type 6TA300 60mm wide, top outlet aluminium grille, 300mm high casing. Finvector casing type 6TA365 60mm wide, top outlet aluminium grille, 365mm high casing.

elementsFinvector heating elements to suit 60mm and 90mm wide casings are offered manufactured from steel tube with steel fins or copper tube with aluminium fins.

The variations are identified as follows: 22 & 28 – tube nominal diameter in millimetres S – Steel tube, c copper tube 6 – Suitable for 60mm wide casing 9 – Suitable for 90mm wide casing

These symbols combine to identify the element type.

example: Finvector element 22S6S 22mm outside diameter, steel tube suitable for 60mm wide casing, steel fins.

note: 1. Steel tube always combines with steel fins 2. copper tube always combines with aluminium fins 3. All tube options have plain ends only

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range List - Aluminium Linear outlet grilleStyle Casing

width mmElement and damper

arrangement Casing height mm

6TA 60

160 200 255 300 450 525 600

Single row • • • • • • •

Single row and damper • • • • • •

doublerow • • • • •

Double row and damper • • • •

9TA 90

170 260 300 370 450 525 600

Single row • • • • • • •




6SA 60

170 230 300 330 450 525 600

Single row • • • • • • •




9SA 90

230 300 330 450 525 600

Single row • • • • • •

Single row and damper • • • • •

doublerow • • • •

Double row and damper • • •

6FA 60

260 315 360 450 525 600





9FA 90

350 390 460 525 600

Single row • • • • •




See performance section of this booklet for combined list of casing and element types.

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range List - Aluminium Linear inlet and outlet grillesStyle Casing

width mmElement and damper

arrangement Casing height mm

6TAI 60

225 265 320 365 515 590 665

Single row • • • • • • •




9TAI 90

265 355 395 465 545 620 695

Single row • • • • • • •




6SAI 60

235 295 365 395 515 590 665

Single row • • • • • • •




9SAI 90

325 395 425 545 620 695





6FAI 60

325 380 425 515 590 665





9FAI 90

445 485 555 620 695

Single row • • • • •




See performance section of this booklet for combined list of casing and element types.

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casing outputs Linear Grille

Table 2

casing TypeSingle row doublerow

22S9S 22c9A 28S9S 28c9A 22S9S 22c9A 28S9S 28c9A9TA170 377 480 381 492 - - - -9TA260 490 624 496 641 - - - -9TA300 529 673 534 691 649 826 656 8489TA370 584 743 591 763 737 937 746 9639TA450 629 799 635 821 818 1037 825 10679TA525 653 830 659 853 873 1109 881 11409TA600 670 851 676 875 920 1168 928 1201

9SA230 458 581 462 596 - - - -9SA300 531 674 537 693 - - - -9SA330 588 708 563 727 687 871 693 8959SA450 631 801 637 823 812 1031 820 10609SA525 655 832 662 855 868 1102 877 11329SA600 672 854 678 877 915 1163 923 1194

9FA350 532 676 538 694 - - - -9FA390 557 708 563 727 693 881 701 9059FA460 589 749 595 769 753 958 761 9839FA525 608 773 615 794 796 1012 805 10409FA600 624 794 631 815 840 1069 850 1098

conditionsL.T.H.W 75°c mean, 1 m/s Water velocity, entering air 18°c (∆T 57K)

Table 1Heat outputs, watts per meter, from finned element installed in 60mm wide casing having extruded aluminium outlet grille.

Table 2Heat outputs, watts per meter, from finned element installed in 90mm wide casing having extruded aluminium outlet grille.

Table 1


22c6A 22S6S 22c6A 22S6S6TA160 327 288 - -6TA200 366 323 - -6TA255 414 364 553 4876TA300 445 392 601 5296TA450 519 457 723 6376TA525 540 475 776 6836TA600 555 488 786 691

6SA170 324 286 - -6SA230 379 334 - -6SA300 428 377 576 5076SA330 446 393 604 5326SA450 499 439 693 6106SA525 519 457 732 6456SA600 533 469 763 671

6FA260 391 344 - -6FA315 425 374 571 5026FA360 449 396 612 5406FA450 486 428 673 5936FA525 506 445 711 6256FA600 520 459 741 654

The performance data listed in the tables and graphs has been derived from tests in accordance with BS 3528:1977.

please refer to the applications section, pages 12 to 14 for examples of using the data.

performance

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Table 4


22S9S 22c9A 28S9S 28c9A 22S9S 22c9A 28S9S 28c9A9TAI265 358 456 362 467 - - - -9TAI355 465 593 471 609 - - - -9TAI395 502 639 507 656 616 785 623 8069TAI465 555 706 561 725 700 890 709 9159TAI545 597 759 603 780 777 985 784 10149TAI620 620 788 626 810 829 1053 837 10839TAI695 636 808 642 831 874 1110 882 1141

9SAI325 435 552 439 566 - - - -9SAI395 504 640 510 658 - - - -9SAI425 530 673 535 691 653 827 658 8509SAI545 599 761 605 782 771 979 779 10079SAI620 622 790 629 812 825 1064 833 10759SAI695 638 811 644 833 869 1105 877 1134

9FAI445 505 642 511 659 - - - -9FAI485 529 673 535 691 658 837 666 8609FAI555 559 771 565 730 715 910 723 9349FAI620 578 734 584 754 756 961 765 9889FAI695 593 754 599 774 798 1015 807 1043

Table 3


22c6A 22S6S 22c6A 22S6S6TAI225 311 274 - -6TAI265 348 307 - -6TAI320 393 346 525 4636TAI365 423 372 571 5026TAI515 493 434 687 6056TAI590 513 451 737 6496TAI665 527 464 747 656

6SAI235 308 272 - -6SAI295 360 317 - -6SAI365 407 358 547 4826SAI395 424 373 574 5056SAI515 474 417 658 5796SAI590 493 434 695 6136SAI665 506 445 725 637

6FAI325 371 327 - -6FAI380 404 355 542 4776FAI425 426 376 581 5136FAI515 462 407 639 5636FAI590 481 423 675 5946FAI665 494 436 704 621

casing outputs Linear Grille with inlet Grille

conditionsL.T.H.W 75°c mean, 1 m/s Water velocity, entering air 18°c (∆T 57K)

Table 3Heat outputs, watts per meter, from finned element installed in 60mm wide casing having extruded aluminium inlet and outlet grille.

Table 4Heat outputs, watts per meter, from finned element installed in 90mm wide casing having extruded aluminium inlet and outlet grille.

The performance data listed in the tables and graphs has been derived from tests in accordance with BS 3528:1977.

please refer to the applications section, pages 12 to 14 for examples of using the data.

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Graph 1Heat output Factor – basis at ∆t 57k

Graph 2Water mass flow rate – velocity

Graph 3 – Water velocityheat output factor

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Table 5Heat outputs, watts per metre of finned element only, without casing, (installed 100mm, from floor to underside of fins).

conditions: L.T.H.W. 75°c mean, 1m/s water velocity entering air 18°c (∆t 57K).

Type 22S6S 22c6A 22S9S 22c9A 28S9S 28c9AW/m 303 344 421 534 425 548

Table 6Heat outputs watts per metre from plain tube installed in Finvector casing.

conditions: L.T.H.W. 75°c mean, 1 m/s water velocity, entering air 18° (∆t 57K).

casing Height mm60mm deep casing 90mm deep casing22S 22c 22S 22c 28S 28c

130 to 190 56 30 47 27 52 28200 to 290 63 35 52 30 56 31300 to 390 70 40 58 34 64 35400 to 490 77 45 64 38 71 39500 to 600 79 46 67 39 73 40

Graph 4 – pressure loss

Graph 5 – Damper effect

casing Height in mm

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Table 7Typical approximate casing masses, kg per metre.

casing height mmcasing style

Add for damper Add for backplate6TA 6SA 6FA 9TA 9SA 9FA

300 6.5 7.5 - 7.0 7.9 - 1.7 1.7315 - - 7.8 - - - 1.7 1.8350 - - - - - 9.1 1.7 2.0450 8.5 9.5 9.8 8.9 9.9 - 1.7 2.6460 - - - - - 10.5 1.7 2.7600 10.5 11.5 11.8 10.9 12.0 12.2 1.7 3.5

Table 8Approximate masses of single row Finvector element.

element type 22c6A 22S6S 22c9A 22S9S 28c9A 28S9S

Mass, kg/m 0.80 2.41 1.94 4.54 2.23 4.70

Graph 6 – Maximum touch temperatures

Water Temperature Minus

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9080

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1003010 20 40 50 7060 80

1 - 2 Row <300mm High2 - 2 Row 315mm To 460mm High3 - 2 Row 525mm High4 - 2 Row 600mm High & 1 Row 260mm High5 - 1 Row 300mm To 350mm High6 - 1 Row 375mm To 450mm High7 - 1 Row 525mm High8 - 1 Row 600mm High

NOTESA) The maximum touch temperature is at the outlet grille. Casing temperatures will be lower.B) To obtain the maximum touch temperature, deduct the ambient air temperature from the water temperature and mark the horizontal axis at this value. Project the above value up the graph until it crosses the diagonal line of the style of casing proposed. From this crossing point project a line horizontally and read the value where this line crosses the vertical axis. The Maximum touch temperature is the sum of the value on the vertical axis and the ambient temperature.

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ApplicationThe choice of system control depends very much on the size of the installation, economic factors and regulations. One of the most popular arrangements on larger installations is the control of the space temperature in each zone, using a weather compensated supply.

The first sizing method is to aim at a minimum water velocity, ideally 1 metre per second. This water velocity ensures rapid air clearance and the most efficient heat transfer.

The second sizing method is to decide on the water temperature drop across each run or section of element as connected across the ‘mains’. If this method is used, it is important to ensure that the water velocity does not fall below 0.1 metres per second.

Determining elementrequirements – MeTHOD 1This method is utilised when the total heat output requirement, water velocity, mean water temperature and ambient air temperature are known.

Step 1From the overall length available to accommodate the casing, deduct an amount sufficient to allow for valves, expansion joints and connecting to ‘mains’. The result will be the length available for Finvector element.

Step 2Divide the result from Step 1 into standard overall element lengths, bearing in mind selecting longer elements will result in fewer joints and less plain tube.

Step 3After deciding upon the overall element lengths required, total up the finned lengths and divide this into the total heat requirement for the run. The resultant will be the necessary heat output per liner length of finned element to meet the heat requirements of the run.

Step 4Having previously decided upon the casing type, refer to the Heat Output Table and select an element arrangement to suit the heat output per linear length found in Step 3. Once this has been established, the pressure loss of the particular run can be found by reference to Graph 4.

example: A run of Type 9SA525 Finvector is required to provide a total heat output of 4kW. The heating medium available is low temperature hot water 75° mean, water velocity 1 metre per second, entering air temperature 18°c. (∆t = 57K). Overall run length available 7.2 metres.

please refer to performance section, pages 7 to 11 for tables and graphs referred to in this example.

1. From the overall run length; deduct an allowance for valves and connecting up to the ‘mains’ at each end, say 0.6 metres total. (note, expansion joints not required on this run).

Length available for element; 7.2m - 0.6m = 6.6m.

Finvector has been applied successfully to heat many types of buildings such as office blocks, schools, colleges, universities, libraries and hospitals.

It is usually located around the perimeter of a building along the external walls, where the greatest heat loss often occurs, but it is also suitable for installation on any plain, vertical surface.

Finvector is particularly suitable for installation beneath large glass areas featured in many modern buildings, since it offsets downdraughts and ensures comfortable conditions.

Finvector is ideally suited for heating large spaces, subsequently to be divided into smaller units. The design and construction of the casing is such that the modular features of the building can be matched, permitting partitioning to be re-sited at will, without the necessity to make major alterations to the heating equipment. Alternatively, where the application is non-modular, the design permits flexibility and adjustment to the overall length of casing run is possible, due to the overlap of the frontplate on the make-up plates, end caps and corner pieces.

The overlap and the feature of frontplates in relief can be used to emphasize the modular building construction when the ‘tailor-made’ Finvector equipment is selected to follow the column and window mullion positions.

General considerationsWhen considering the application of Finvector for a particular installation it is essential to ensure that sufficient depth and height are available to accommodate the type of casing selected. The casing must be positioned above the finished floor level to allow unrestricted entry of the inlet air.

Low temperature pumped hot water, in the range 70°c to 80°c mean temperature, is by far the most popular heating medium for use with Finvector, but it may also be used with high temperature hot water or steam, but such a medium may produce unacceptably high casing temperatures. See graph 6.

The equipment is also suitable for use with the low water temperatures available from heat reclaim air conditioning schemes, but such applications necessarily require a larger quantity of element for a given heat loss than would be required if standard low temperature hot water were used.

Although the equipment is not supplied with air vents, they must be provided on all hot water installations. elements must be correctly graded and an air vent fitted at the highest point on each element run.

When steam is chosen as the heating medium, the Finvector element must be correctly ‘graded’ approximately 13mm in each 3 metre run, which usually requires long runs to be divided into several shorter sections each with its own strainer, steam trap, valves etc.

The optional quadrant damper, available with most types of Finvector, will allow occupants of separate enclosed areas to reduce the heat output locally.

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2. Select elements using the overall lengths. (2 x 2.3m) + (1 x 2m) = 6.6m Total overall length.

Total finned length is total overall length less 0.15m per element.

Total finned length, 6.6m – (3 x 0.15m) = 6.15m

3. Divide total heat output required from the run by the total finned length available

650W/m6.15m4000W

=

From Table 2, 9SA525 casing with 22S9S single row element gives a heat output of 655 W/m of finned element under the stated conditions.

From Graph 4, the pressure loss at 1 m/s is 580 pa/m for 22mm steel tube.pressure loss of 6.6m length of element tube, 6.6m x 580 pa/m = 3.8 kpa.

If the operating conditions in the above example are changed to 65°c mean water temperature, 0.5m/s water velocity, entering air temperature 15°c, it would be necessary to apply correction factors as follows:

From Graph 1, factor for 65°c mean water temperature, entering air temperature 15°c

(∆T = 50K) F1 = 0.84.

From Graph 3, factor for 0.5m/s water velocity F2 = 0.974.

combined factor F1 x F2 = 0.84 x 0.974 = 0.818.

This Factor is now divided into the required heat output so that direct reference can be made to the performance table.

4900W0.8184000W

=

Divide this heat requirement by the heat output of 9SA525 casing with 22S9S single row element to find the finned length required.

7.48m655W/m4900W

=

But the maximum finned length for this run cannot exceed 6.15m, which will give a maximum heat output of 6.15m x 655W/m x 0.818 = 3295W.

The suggested alternative is to use 22c9A single row element which gives a heat output of 832W/m, thus the finned length required will be:

5.79m832W/m4900W

=

elements required (1 x 2.3m) + (2 x 2m) = 6.3m total overall length.

Total finned length 6.3m – (3 x 0.15) = 5.85m.

From Graph 4, pressure loss per metre 150 pa.

pressure loss of 6.3m nominal element length: 6.3m x 150 pa/m = 945 pa.

Determining elementrequirements MeTHOD 2This method is used when the total heat requirement, water temperature drop across the run, mean water temperature and ambient air temperature are known. It is applicable to looped or return bend circuits and 1-row heated circuits.

When 2-row headed circuits are utilised, the calculated water mass flow rate must be halved as the top and bottom row of elements should each carry half the total water quantity.

please refer to performance section, pages 7 to 11 for tables and graphs referred to in this example.

Step1Knowing the heat output requirement, divide this figure by the temperature drop across the run and the specific heat capacity (cp) of water, to determine the water mass flow rate.

cp is specific heat capacity of water taken as 4.2 kJ/kg K

Step 2refer to Graph 2 and proceed from the calculated water mass flow rate, determined in Step 1, across horizontally to the correct sloping line for the element tube size and material being used. From this line drop vertically to obtain the water velocity v (m/s).

Step 3refer to Graph 3 and using the water velocity from Step 2, proceed vertically to the curved line and then horizontally to obtain the heat output factor F2.

Step 4Divide the total heat output requirement for the run by the heat output factor.

Step 5Divide the resultant from Step 4 by the heat output of the element and casing selected from the tables to obtain the total finned length of element required.

note: If operating conditions are other than stated in the tables, the appropriate factor F1 must be applied.

Step 6From the overall length available to accommodate the casing, deduct a sufficient amount to allow for valves, expansion joins and connecting to ‘mains’. The result will be the length available for Finvector element.

Step 7Select standard elements to meet total finned length determined in Step 5 and ensure total overall element length does not exceed that determined in Step 6.

example: A run of 9TA600 Finvector is required to fit into a space 17 metres overall length and provide a total heat output of 16.8kW. Single or double row 35c9A element is to be arranged in a loop with ‘same end’ connections.

Heat output kW

Drop ºC x Cpm(kg/s)

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With low temperature hot water at 80°c & 70°c, flow & return and entering air temperature at 18°c.

1. Water flow rate:

2. refer to Graph 2 and from 0.4 kg/s proceed horizontally to the line marked 35c. Drop vertically to obtain water velocity = 0.5m/s.

3. refer to Graph 3 and from 0.5m/s proceed vertically to the curved line and then horizontally to obtain heat output factor

F2 = 0.974.

4. Divide heat output requirement for the run by the heat output factor.

5. Divide heat output from Step 4 by heat output of 9TA600 casing with single or double row 35c9A element, found from Table 4.

Single row finned element

or

Double row finned element

6. As the single row element length exceeds the casing run length, double row will be necessary. Bearing in mind that longer elements will mean fewer joints, 6 elements per row are suggested as follows:

6 x 2.8m = 16.8m Overall elements per row.

Finned length 16.8m – (6 x 0.15m) = 15.9m which agrees with the requirements from Step 5.

provision for expansion, General considerations.When Finvector elements and tubing are connected up to form a continuous run, provision must be made for the expansion which results when the heating medium is applied to the system. It may be possible, in some circumstances, to arrange for a small amount of expansion to be taken up by allowing the pipework to ‘swing’. But it is usually necessary to provide expansion joints or bellows to absorb the expansion.

Because of the limited space available within the Finvector casing it is not always possible to fit proprietary expansion bellows, and for this reason Dunham-Bush offer purpose-made expansion joints and suitable pipe guides.

Quantity of expansion Joints and SuitabilityTo decide on the quantity and suitability of Dunham-Bush expansion joints for a particular application, three main factors must be considered.

1. The total amount of movement or expansion of the elements and tubing in the run being considered. This will depend upon the difference between the installed and operating temperature and the coefficient of linear expansion of the tube material.

2. The system working and test pressures. The designer must ensure that the working pressure takes into account any static heads plus any additional system pressurisation applicable.

3. The operating temperature must not exceed 150°c.

The expansion of any length of steel or copper tube Finvector elements can be obtained from Graphs 7 and 8.

exampleSelect the quantity and check the suitability of Dunham-Bush expansion joints for a run of 9SA450 Finvector casing approximately 23 metres overall length, fitted with 22 metres of 28S9S single row element. The system is not pressurised but must be suitable for a static head of 30 metres and a pressure of 7 bar. Assume system is to be installed when the ambient air temperature is 5°, Water flow temperature 80°c.

Step 1check to ensure Dunham-Bush expansion joints are suitable for the working pressure, test pressure and operating temperatures – refer to Table on page 15.

Step 2Temperature difference between water flow and ambient air, 80°c - 5°c = 75K, Length of element 22 metres. From Graph 8, page 16 total expansion is 19.3mm.

Step 3From Table 9, page 15, total compression movement per expansion joint is 16mm, 15000 cycle life 25mm, 4000 cycle life. Thus one or two expansion joints may be used for this particular run, see fig 1 and 2 .

Location of expansion Joints and pipe GuidesHaving decided on the quantity of expansion joints, the designer must now decide where they should be applied and, the positions of pipe guides and anchor points. Dunham-Bush expansion joints are guided internally but it is recommended that external pipe guides should be fitted each side of an expansion joint and sufficient intermediate pipe guides should be fitted along the run to ensure only axial movement.

elements and tubing should be anchored in accordance with recognised practice, securely fastened to the building structure. Only one expansion joint should be fitted between each pair of anchor points.

16.8kW= 0.4kg/s

(80-70) x 4.2kJ/kg K

16.8kW= 17.25kW

0.974

16.8kW= 15.31m

1.097kW/m

17.25kW= 21.58m

0.799kW/m

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Table 9

Tube Size

Total compression MovementMax. Working

PressureMax. Test pressure

Anchor Thrust* At Maximum cold testPressure

4000 cycle Life 15000 cycle Life

mm mm mm bar gauge bar gauge newton’s22 25 16 6.9 10.35 5628 25 16 6.9 10.35 97

nOTeS: 1. Maximum operating temperature 150°c 2. *Safety factor not included.

Figs 1 and 2

expansion Joints and expansion pipe Guides

Single element run

Double element run

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Graph 7 – Linear expansion of copper tube element

Graph 8 – Linear expansion of steel tube element

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Style TA & TAI

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Style SA & SAI

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Style FA & FAI

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engineering SpecificationThe Finvector perimeter heating equipment shall be manufactured by Dunham-Bush Ltd. The types and quantities shall be as detailed on the drawings or schedule. The constructional features must comply with this specification.

casing componentsAll standard component parts for each casing type, necessary to produce a complete installation, shall only be supplied if specified.

casing – standard partsAnti-streak sealing stripsBracketsMake-up platesFrontplatesFrontplate centre supportsSplice platesInlet backsShadowline grillesGrille joint piecesFixings

note: certain parts are not applicable to all casing types. refer to parts description.

casing – accessoriesend capsend plate/Grille end cover platecornersDampersBackplatesInsulation boxes

element – standard partsFinnedtubesFin and tube support bracketsScrews and washers

element – accessoriesplain tubesexpansion jointspipe guide kitselement adaptors

Anti-streak sealing stripsAnti-streak sealing strips shall be supplied for all casing styles except FA and FAI, shall be manufactured from extruded aluminium, in lengths of 1800mm for cutting on site. All strips shall be complete with foam seal.

Make-up platesMake-up plates shall be provided in lengths of 200mm. They shall be manufactured from 1.2mm mild steel and shall be suitable for attaching to brackets with screws and captive nuts provided.

BracketsThe following brackets shall be provided for each make-up plate. Styles TA or SA, two vertical and one horizontal. Styles TAI, SAI and FA, two vertical and two horizontal.

FrontplatesFrontplates shall be manufactured from 1.2mm mild steel.

The sides and bottom shall be formed to provide additional rigidity. Frontplates shall be securely fixed by interlocking with the make-up plates at the top and by screws at the bottom. Frontplates shall be available as follows: Standard 250mm to 1800mm long in 50mm increments, with damper, 600mm to 1800mm long in 50mm increments.

Frontplate centre supportsVertical brackets and plates shall be supplied to provide additional support at the bottom centre of each frontplate 1000mm to 1800mm long.

Aluminium grille shall also be provided with a top bracket and plate for frontplates 1250mm to 1800mm long.

Top/Bottom platesStyle FA shall be supplied with top plates. Styles TAI and SAI shall be supplied with bottom plates. Style FAI shall be supplied with top and bottom plates. Top and bottom plates shall be manufactured from 1.2mm mild steel, in lengths of 100mm to 1800mm in 100mm increments.

Splice platesSplice plates shall be provided to ensure correct alignment of top/bottom plates at butt joints.

Shadowline grillesAll grilles shall be manufactured from extruded aluminium alloy, in lengths of 1800mm for cutting on site and finished in Dunham-Bush shadowline.

Grille joint piecesA grille joint piece should be provided to ensure proper alignment at the butt joint between adjacent sections of aluminium grille.

FixingsAll components shall be supplied with self tapping screws and captive nuts as necessary. Screws or other fixings for securing Finvector to the building structure shall be supplied by others.

FinishAll zinc coated steel components shall be self finished. unless otherwise specified, the following mild steel components shall be finished epoxy/polyester powder coated semi-gloss, BS4800:1989 colour 10 A 03 flake grey 29% gloss: Frontplates, make-up plates, top/bottom plates, inlet backs, end caps, end plate/grille, end cover plates and corners.

The following components shall be finished epoxy polyester power coating matt, BS4800:1989 colour 00 e 53 black 10% gloss: extruded aluminium grilles (except face of bar, which shall be self finished), horizontal brackets, grille joint pieces, visible face of aluminium ant-streak sealing strips.

Damper blades for aluminium grille style shall be black finish. All elements shall be self finished.

end capsIf specified, left and right hand end caps shall be supplied to terminate each run of Finvector. each end cap shall consist of an end, front and necessary brackets. end caps shall be manufactured from 1.2mm mild steel, and end caps shall be 100mm long. each end cap end shall be complete with knockouts for pipework entry.

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end plates and grille end cover platesIf supplied, left or right hand end plates shall be supplied to terminate each run of Finvector. end plates shall be supplied with brackets. end plates shall be manufactured from 1.2 mm mild steel, in lengths of 100mm. Aluminium grille styles shall be supplied with grille end cover plates.

cornersIf specified, 90°, 135°, 255° or 270° corners shall be provided. corner fronts shall be manufactured from 1.2mm mild steel. All the necessary brackets shall be supplied for each corner. Style FA shall be supplied with a corner top. Style FAI shall be supplied with a corner top and bottom.

DampersIf specified a damper shall be provided with frontplates 600mm to 1800mm long. Dampers shall have the operator assembled to frontplate, but damper blade supplied separate for site fitting.

The red/blue damper operator shall permit smooth “fingertip” adjustment of a damper to any position between open and closed.

BackplatesIf specified, 0.7mm zinc coated mild steel backplates shall be provided, in lengths of 100mm 10 1800mm in 100mm increments.

element generalThe choice of elements shall be as detailed below. each element shall be supplied with fins having formed collars to ensure correct fin spacing and maximum heat transfer between fins and tube. The fins shall be bonded to the tube by mechanical expansion. each element shall be supplied with the necessary element support brackets, pipe support brackets, screws and washers.

Steel tube/steel finned elementselements type 22S6S shall consist of 22mm O.D. steel tube and 48mm x 60mm zinc coated steel fins. element types 22S9S & 28S9S shall consist of 22mm & 28mm O.D. respectively, steel tube and 76mm x 76mm zinc coated steel fins. All fins shall have nominal thickness of 0.5mm. element tube shall be thin wall to BS3059: part 1:1987. Outside diameters shall be listed below:

element type Minimum O.D. Maximum O.D.22S6S & 22S9S 21.924mm 22.131mm

28S9S 27.924mm 28.131mm35S9S 34.939mm 35.146mm

All steel tube/steel finned elements shall be available with plain ends. Overall element lengths 600mm to 3000mm, in 100mm increments. unless otherwise specified, finned length shall be the overall length less 150mm, giving 75mm tube ends.

copper tube/Aluminium finned elementselement type 22c6A shall consist of 22mm O.D. copper tube and 48mm x 60mm x 0.6mm aluminium fins.

element types 22c9A & 28c9A shall consist of 22mm & 28mm O.D. respectively, copper tube and 76mm x 76mm aluminium fins having a thickness of 0.6mm.

element tube shall be light gauge copper to BS2861:1971, part 2c106. Outside diameter shall be to BS en 1057-r250 as listed below.

element type Minimum O.D Maximum O.D.22c6A & 22c9A 21.975mm 22.055mm

28c9A 27.975mm 28.055mm35c9A 34.990mm 35.070mm

All copper tube/aluminium finned elements shall have plain ends, 22c6A and 22c9A elements shall be available in overall lengths of 600mm to 2000mm in 100mm increments. All other elements shall be available in overall lengths of 600mm to 3000mm in 100mm increments. unless otherwise specified the finned length shall be 150mm less than the overall length, giving 75mm plain ends.

Working pressure/Temperature and Test pressure – elementsThe work pressure/temperature and test pressure shall be limited to those given for expansion joints and/or those permitted by fittings used to join elements.

elements only – Maximum working pressure - 14.0 bar gauge, maximum working temperature - 175°c , maximum cold test pressure - 21.0 bar gauge.

expansion JointsWhen specified, expansion joints shall be supplied to suit the type of element. expansion joints shall be manufactured from gilding metal and shall have plain copper ends to BS en 1057-r250, suitable for compression or capillary fittings.

Working pressure/Temperature and Test pressure – expansion jointsMaximum working pressure – 6.9 bar gauge, Maximum working temperature - 150°, Maximum cold test pressure – 10.35 bar gauge.

expansion Joint Guide KitsWhen specified, expansion joint pipe guide kits manufactured from 1.6mm zinc coated steel shall be provided for fitting each side of an expansion joint and at intervals along the element run to ensure only axial movement. Guide clips shall be slotted to allow element grading.

element AdaptorsWhen specified, mild steel element adaptors shall be provided, to convert to BSp sizes for welding or screwing at run ends.

performanceFinvector shall be capable of producing the heat outputs listed in the manufactures products catalogue, when installed in accordance with their recommendations. Heat outputs shall be derived from test in accordance with BS3528:1977.

AnchorsAnchors shall be provided by others where necessary.

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HandlingSmall orders are usually packed in easily handled bundles and can be off-loaded by hand. Larger orders are usually palletized and lifting equipment should be provided. care should be taken to avoid damage.

StorageFinvector components should be stored under dry, clean conditions. Any protective packing should not be removed until the components are required for installation, unless damage in transit is suspected. (note: The buyer must examine the goods promptly upon arrival and is not entitled to make any claim against the company in respect of damaged goods, unless at the time of delivery of the goods, the delivery note is indorsed by the buyer and countersigned by the carrier or shipping agent with a note detailing the damage).

preparationA sound vertical flat surface is necessary for the installation. If walls are rough or uneven, it will be necessary to pack out to ensure brackets and anti-streak sealing strip can be properly aligned and fixed. plugs and screws or other suitable fixings must be provided by others.

Layout Drawingsevery large Finvector is supplied with Dunham-Bush layout drawings which show the location of all runs of Finvector and the positions of the main components. A material list details all of the equipment supplied and is tabulated so that all of the components for each run can be extracted from the material supplied.

Installation Details for Aluminium Grille StylesA clearance of at least 50mm, for air inlet, must be allowed between the bottom of styles TA, SA and FA Finvector and the finished floor level.

Styles TAI, SAI and FAI may be fitted to the finished floor level.

MaintenanceMaintenance consists of annually cleaning the heating element with a vacuum cleaner, checking the operation of dampers – when fitted, and purging any air which may have accumulated in the elements.

replacement partsThe Dunham-Bush guarantee which forms part of out conditions of sale, covers the supply of replacement parts for a period of one year.

pricesDunham-Bush Ltd do not issue price lists, but will be pleased to supply a written quotation on request.

conditions of SaleThe standard Dunham-Bush conditions of sale are printed on the reverse side of all quotations forms and order acknowledgement forms. Additional copies are available upon request.

AvailabilityFinvector is supplied direct from our factory and is not available from stockists. The lead time varies with demand and should therefore be checked at ordering stage. A list of Field Sales Offices and Agents is shown on the back cover.

packagingFinvector is supplied in component form and all components are properly packed. The large items – frontplates, anti-streak sealing strips, backplates (where supplied), damper blades for aluminium grille styles (where supplied) and elements are packed in bundles and shrink wrapped. Brackets, make-up plates, end caps and corner pieces, etc are packed in clearly labelled boxes. On receipt of a consignment of Finvector, refer to the packing list supplied with advice note and check off the material supplied. please advise of any shortages or damage immediately.

packingFinvector components shall be properly packed and labelled. Miscellaneous items shall be packed in clearly labelled boxes.

OrderingTo minimise any delay in processing your order, please refer to the quotation number and any previous correspondence.

please supply a building drawing of each floor, clearly marking where each type of Finvector casing is to be fitted. In addition, please advise the following:-

1. Are dampers required?2. Are backplates required?

3. casing finish, if other than standard.

4. Mark full dimensional details on building drawings i.e. overall length of each run, modular dimensions and dimensions of end modules.

5. If there are any projections such as columns which the Finvector is to “run around”, please provide a detailed sketch.

6. Details of preferred frontplates and make-up plate arrangement, giving partition thicknesses, where applicable.

7. Mark where end caps and corner pieces are required and state angle of each corner.

construction prices, conditions of Sale

Supply

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8. element type and style, single or double row, length of elements and position in each casing run.

9. Are element adaptors required (steel tube only)?

10. Are expansion joints required?

11. Are expansion joint kits required?

DeliveryFinvector equipment is delivered to site in accordance with our conditions of sale. The buyer is responsible for off-loading and storage.

Hydrocourse Trench Finvector

Hydrocourse Trench FinvectorFor applications where wall space is limited or unavailable – for example where glazing extends to floor level, single or double row Trench Finvector may be the ideal solution.

A steel duct casing is supplied for installation in a pre-constructed floor “trench” or suspended floor. It is provided with element supports, baffles, anodised aluminium support angles and anodised aluminium roll or rigid grille. Levelling screws allow the height to be easily adjusted, flush with any chosen floor covering. please contact Dunham-Bush for more information.

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QQuality

Dunham-Bush operates a quality control system and is a company of assessed capability to BS en ISO 9001 : 2000

Whatever the product, wherever its eventual destination, Dunham-Bush design and manufacturing policy has always been firmly based on technical quality.

product supportIn the united Kingdom and Ireland,Dunham-Bush have a network of sales agents and representatives, situated at strategic locations, to provide local support in pricing and selection. Further technical and application support is available at the Dunham-Bush office and factory in Havant.

Other Dunham-Bush productsSeries AM fan convectorsSeries BM fan convectorsSeries cM fan convectorsSeries 600 ‘ceiling Tile’ heaters‘Avant-Garde’ fan convectors

evolution radiant panelsevo-Lite radiant panelsDunham Strip radiant panels

Series F fan coil unitspanther fan coil unitscougar fan coil unitsLeopard fan coil unitspuma fan coil unitsLynx fan coil unitsJaguar fan coil units

DBB2 ‘Slimline’ Hydronic air handling unitsDBM Hydronic air handling units

Hydrocourse trench heatingSeries uH unit heatersWarmsafe LST radiatorsSentry door curtains

Thermocold packaged water chillers andheat pumps

Manufacturer reserves the right to change any product specification without notice

pDS-1000-H-0076-04

March 2007

Dunham-Bush LtdDownley road

HavantHants pO9 2JD

Tel. 023 9247 7700Fax. 023 9245 0396

[email protected]

www.dunham-bush.co.uk

Finvector Perimeter Heating - Dunham-Bush · 2016-09-19 · Hydrocourse Trench Heating 23...

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