Evolution. Radiant Panels. Radiant panel system LPHW up to 90 C Suspended ceiling grid or sofit mounting Vertical wall surface mounting

Transcription

1 Evolution Radiant Panels Radiant panel system LPHW up to 90 C Suspended ceiling grid or sofit mounting Vertical wall surface mounting

2 Contents IDENTIFICATION DESCRIPTION Page STYLE CG 3-7 STYLE CS, FC & WS PERFORMANCE 8-19 APPLICATION 2 0 ENGINEERING SPECIFICATION 21 CONSTRUCTION PRICES & CONDITIONS OF SALE SUPPLY 3 3 Identification Introduction Evolution by Dunham-Bush is an architectural radiant panel system, ideal for application in light industrial or commercial buildings. It is designed for use with low temperature hot water on either constant or variable temperature circuits. The unique heating effect from Evolution radiant panels will create comfort conditions at lower design air temperatures. Room occupants are heated directly, without the need to heat the air surrounding them. Evolution can be installed in suspended ceilings, directly onto wall or ceiling surfaces or hung from drop rods. It is modular, giving the system designer great flexibility in selecting panels for any application. The standard finish is white polyester powder, but other finishes are available from the RAL or BS 4800 ranges. Authority It is accepted practice and policy at Dunham-Bush to maintain exceptional standards in engineering and quality. To this end, Dunham-Bush operates a quality system and is registered as a company of assessed capability to BS EN ISO 9001 : Description A one tube Evolution radiant panel consists of an aluminium alloy extruded plank, which has a plane radiating surface on one side and a semi-circular groove on the opposite side. A 15mm O.D. copper tube is retained in the groove by an extruded tube clamp, which completely encapsulates the tube. Planks are assembled and interlocked, side by side, to produce multi tube panels. Standard Range The range consists of one, two, four and six tube panels, in nominal lengths of 600mm to 3000mm, and in various tube configuration, as illustrated in the panel diagrams. All panels can be supplied in a range of styles, to suit the applications pictured below. Style CG ceiling grid application Style CS ceiling surface application Style FS freely suspended Style WS wall surface application Style CG Style CS Style FS Style WS

3 Style CG 4. SUSPENSION BRACKETS (FOR M6 DROP RODS) 3

4 Style CG 4

5 Style CG 5

6 Style CG 6

7 Style CG 7

8 Style CG 8

9 Style CG Standard convoluted stainless steel hose shown, EPDM available on request 9

10 Style CS & FS 10

11 Style WS 11

12 Style CS, FS & WS 12

13 Style CS, FS & WS 13

14 Style CS, FS & WS 14

15 Style CS, FS & WS 15

16 Style CS, FS & WS 16

17 Style CS, FS & WS 17

18 Performance Table 1: Total heat putputs, Watts per metre of nominal panel length Mean water ( C) Ambient air temperature ( C) Rated Thermal Output (W/m) Styles CG CS & FS (BS EN 14037) Style WS (BS EN 442) 1T 2T 4T 6T 1T 2T 4T 6T Performance equation where Q = rated thermal output per unit area (W/m²) Styles CG CS & FS (BS EN 14037) Style WS (BS EN 442) Q = K d DT n K d n Notes 1. Thermal outputs are rated as defined in the relevant standard and are both radiant and convective. 2. Styles CG CS and FS; ~60% or total output is radiant; Style WS; ~53% of total output is radiant. 3. Outputs for Styles CG CS and FS are rated to BS EN Parts 1, 2 and 3, BS EN applies for horizontally mounted panels only. 4. Outputs for Style WS are rated to BS EN 442 Part Performance equation Q = K d DT n Where Q = rated thermal output (W/m 2 ) K d = output factor, n = output exponent DT = mean water temperature less ambient air temperature (K) 18

19 Notes: 1. Where a single panel type ED is used, the minimum water mass flow rate should not be less than kg/s, to obtain the rated output. 2. Where two or more panels are joined together to form a run, the minimum mass flow rates listed in table 2 must be observed, to prevent air locking. 3. The circuit length for any run can be calculated from the number of tubes per panel, the lengths and panel types and the quantity of panels being used. The pressure loss per circuit can be obtained from graph 2, which includes a nominal allowance for bends and fittings. Table 1: Minimum water mass flow rates Circuit length L metres Minimum flow rate kg/s L > L > L L < The maximum recommended flow rate per circuit is 0.141kg/s (1.0m/s). Table 3: Approximate dry masses of Evolution panels kilogrammes Mass per metre (kg) 1 Tube 2 Tube 4 Tube 6 tube Style Style Style Style CG CS,FS,WS CG CS,FS,WS CG CS,FS,WS CG CS,FS,WS Note: Masses exclude additional angle brackets used on wall mounted applications Graph 1: Pressure loss - mass flow rate pre tube 19

20 Application General Evolution radiant panel heating is suitable for a wide range of applications and in particular, hospitals and educational buildings. Where wall space is limited or unavailable, style CG can be integrated within the ceiling grid or style CS can be fitted to the underside of a ceiling. If the ceiling is too high for these applications, style FS can be suspended from drop rods. Style WS can be fitted vertically, at high level on a wall, or at an angle of 30, by using special brackets. Comfort conditions It is recommended that for radiant heating systems, comfort conditions are achieved when dry-bulb air temperature is slightly lower than mean radiant temperature. This difference between the two temperatures will result in the desired dry-resultant temperature. Heat losses The heat loss of the room under consideration may be calculated in accordance with section A - environmental design CIBSE Guide. Heating medium Evolution is intended for operation with LTHW. The maximum recommended flow temperature is 90 C. Selection The following guidelines are to assist the designer in deciding the best layout for Evolution 1. The total heat load of the room must be calculated in accordance with recognised practice. Heat loads should be calculated using the internal design air temperature (dry bulb). However, the internal design air temperature can be reduced since mean radiant temperatures are elevated by radiant heating. 2. The total heat load should be divided by the total heat output per metre, as given in table 1. This will then give the require overall length of 1 tube, 2 tube, 4 tube or 6 tube radiant panels. Note that vertical panels will give greater heat output, which arises from greater convective heat transfer from the panel surface. 3. The run layout should then be decided, and is best set out on a layout plan. Radiant panels should be located around the outside perimeter of the room, particularly near windows. This will counteract disproportionately high heat losses. Consider the use of single or dual circuit runs, to keep water flow rates to recommended levels as in table 2 (check the pressure loss per circuit in graph 1). 4. There is no maximum mounting height for Evolution. However, when mounting heights exceed 4m, the heat load should be adjusted to additional losses of radiant heat incident on the walls. 5. There is no minimum mounting height for Evolution. As a rule of thumb, mounting heights should be not be lower than 2.4m. Contact Dunham-Bush for further advice on mounting heights and mean radiant temperatures. Style FS, freely suspended 6. Expansion panels must be used for longer panel runs, using the following guidelines :- 4 tube panels one expansion joint every 6m 6 tube panels one expansion joint every 3m 7. Refer to pages 5 and 13 for typical arrangements in a panel run. If requested, Dunham-Bush will prepare complete layout drawings for approval. Style CS, ceiling surface Style CG, ceiling grid 20

21 Engineering Specification The Evolution radiant heating panels shall be manufactured by Dunham- Bush Limited, Downley Road, Havant, Hampshire PO9 2JD. The style, panel types, lengths and quantities shall be as detailed in the schedule or as shown on the drawings. Styles Evolution radiant panel style shall be suitable for the selected application. Style CG ceiling grid Style CS ceiling surface Style FS freely suspended Style WS wall surface Panel types Evolution radiant panel types shown in the panel types diagram, suitable for the hydraulic circuit specified and shall be selected from the following list: Type EA standard panel Type EB end panel Type EC connection panel Type ED single panel Type EE expansion panel Type EF multi-circuit panel Type EG dummy panel (no tubes) Type EH15 flow panel 15mm conn. Type EH22 flow panel 22mm conn. Type EJ15 return panel 15mm conn. Type EJ22 return panel 22mm conn. Type EK- 90 corner panel (with tubes) Type EG 90 corner panel (no tubes) Panel nominal lengths All styles and types, except corners. Panel nominal lengths shall be as detailed in the following list: 600, 900, 1000, 1200, 1500, 1800, 2000, 2100, 2400, 2500, 2700 and 3000mm. Composition Evolution radiant panels shall comprise one, two, four or six extruded aluminium alloy planks, which shall have a plane radiating surface on one side and semicircular groove on the opposite side. A 15mm O.D. copper tube to EN1057, shall be retained in the groove by extruded tube clamps, which shall completely encapsulate the tube. The edges of the extrusion shall be tongued and grooved. Multi tube panels shall be assembled from extruded planks, interlocked side by side, securely joined by galvanised braces. Tube joints shall be soft soldered and panels shall be fitted with manual air vents, as appropriate to the panel circuitry. Where two or more panels are to be joined together, slip couplings shall be provided at tube joints. Expansion panel type EE shall be supplied with expansion hoses, as appropriate to the number of tubes. Where specified, corner panels EG-90 or EK-90 shall be supplied. Style CG Evolution panels shall be fitted with suspension brackets. Where two or more panels are to be joined together, connector plates and joint strips shall be supplied. 50mm thick mineral wool or equal, aluminium foil faced thermal insulation, shall be provided loose for site fitting. Styles CS,FS and WS Evolution panels shall be supplied with backplate and where the nominal panel length exceeds 1500mm, the backplate shall be supplied in two pieces, for fixing together on site. Where two or more panels are to be connected together, 80mm wide joining backplates and 200mm cover plates shall be provided at panel joint positions. All panels shall be supplied with safety wire kits. 25mm thick mineral wool or equal, aluminium foil faced thermal insulation, shall be provided loose for site fitting. Where specified, end caps, cover plates and corner pieces shall be supplied. Finish All panels and accessories shall be degreased before powder coating, colour RAL 9010, 30% gloss. Site test and working pressure Maximum cold test pressure 12 bar gauge, Maximum working pressure 10 bar gauge at 90 C, Maximum recommended safe working pressure with manual air vents 7 bar gauge Note: higher pressures can be accommodated using silver soldered joints. Consult Dunham-Bush for details. 21

22 Construction Handling The purchaser is responsible for offloading. Radiant panels can usually be lifted by two persons, but longer panels may require a third person providing support in the middle. Panels and backplates are usually palletised and shrinkwrapped, so fork lift truck or similar form of lifting equipment is required. Care should be taken to ensure panels are not dropped or suffer impact in any circumstances. Storage Radiant panels should be stored under clean, dry indoor conditions. Any packaging should not be removed until panels are ready for installation, unless damage in transit is suspected. Note the purchaser must examine the panels promptly upon receipt and any claims for damage will only be accepted if, at the time of delivery, the delivery note is endorsed with a note detailing the damage and countersigned by the transport company. Each panel may be marked with a stencil reference if specified on the order. Preparation Extensive modification to the building fabric should not normally be necessary. However, proper provision for fixings must be arranged. The structure to which the panels are to be fixed must be fit for purpose and be capable accepting drop rods or similar suspension fixings. Allowance must be made for the panels to expand freely. Style CG (ceiling grid) panels should be suspended from M6 drop rods with washers and nuts. Style CS (ceiling surface) and Style WS (wall surface) backplates should be screwed or bolted to a sound, flat horizontal/vertical surface (fixings not supplied). Safety wire kits are supplied and should be fitted. Style FS (freely suspended) backplates should be suspended from drop rods (not supplied). Note : It is important to coordinate the installation of panels with other trades, especially when Evolution radiant panels are to interface with other fittings such as ceilings and soffits. Installation Radiant panels are supplied with Sitework Instructions, which provide full details on installing, connecting and commissioning radiant panels. Additional copies are available upon request. N.B. All panels are fitted with protective film on the radiating surface, which should not be removed until installation is complete and there is no risk of damage. Pipework Connections Evolution radiant panels are supplied with pipe circuitry prepared at factory hence only flow, return and panel-joint connections are required. All panels will accept fittings for 15mm or 22m copper tube. It is recommended that connection pipework is given sufficient flexibility to allow for thermal expansion. 22

23 Prices & Conditions of Sale Prices Dunham-Bush do not issue price lists, but will be pleased to provide a written quotation upon request. All quotations are normally prepared by a member of our national network of sales agents and representatives. For further details, please contact Dunham-Bush head office in Havant, Hants. Conditions of sale Standard conditions of sale are included on the reverse of all order acknowledgements. Further copies are available upon request. Supply Availability Evolution radiant panels are supplied direct from the Dunham-Bush factory in Havant. All panels are made to order, and availability can vary with demand and should therefore be checked at the time of ordering. Contact a Dunham- Bush sales agent/ representative for typical lead times. Packaging Evolution radiant panels are packed for storage in dry, indoor conditions. If specified, each panel will be marked with its own unique stencil reference for on-site identification. Ordering To ensure the rapid processing of your order, please refer to the relevant quotation and appropriate correspondence. Please send your order directly to the Dunham-Bush sales agent/representative who provided the quotation, including the information listed below :- 1) Style of panel 2) Quantity, type and nominal length of each panel run 3) Details of special finish i.e. RAL or BS number including the gloss level 4) Stencil references used to identify panels on site 5) A building layout or plan view with the panel runs marked If requested, Dunham-Bush will prepare a detailed layout drawing of the proposed installation for approval prior to manufature. 23

24 Manufacturer reserves the right to change any product specification without notice Dunham-Bush Ltd Downley Road Havant Hants PO9 2JD Tel Fax PDS-1000-H July