Perusahaan ini terdaftar sebagai Free Member. Hindari melakukan pembayaran sebelum bertemu penjual atau melihat barang secara langsung. COD (Cash On Delivery) atau bertemu langsung dengan penjual merupakan metode transaksi aman yang kami sarankan.
Air handling equipment shall be manufactured in accordance with the following specification, designed for horizontal or vertical air flow.
Units shall be matching in both internal width and height to ensure smooth efficient air movement through each section of plant with minimum turbulence and pressure loss.
Access shall be provided to each section of plant for inspection and maintenance purposes.
Units shall be constructed to eliminate the transmission of mechanical vibration.
For ease of handling, larger units shall be transported to site in sections for assembly by others. All jointing gaskets, sealing materials and hardware shall be provided to allow assembly to be completed.
Suitable permanent lifting points shall be incorporated into the unit base frame or framework.
The units shall be complete with fixed identification, airflow and warning labels.
As a minimum the AHU shall be constructed to meet the leakage requirements of DW143 class B (BS1886 leakage class L2).
The unit framework shall be constructed using 50mm penta box section, manufactured from 18 swg (1.2mm) Z2 hot dip galvanised steel.
The frame shall be assembled using pre formed corner sections and seam welded internally. Intermediate post work shall be fitted where necessary to provide a structure of strength and rigidity. The frame shall be capable of supporting the components and fittings forming the air handling unit and withstanding the pressure within the air system under operating conditions. The frame shall be vapour sealed.
All post work around and downstream of cooling coils and other drain tray sections shall be fully insulated throughout their entire length. The insulation material shall have the same acoustic and thermal properties as that identified for cladding panels elsewhere in the specification.
The structural strength of the assembly shall in no way rely on the cladding panels. All strength shall be provided by the permanent framework.
The framework shall have a natural galvanised finish
All air inlet and outlets shall be suitable for flanged duct connection.
All enclosure panels and access doors shall be nominal 45mm deep and double skinned. The outer skin shall be manufactured from 20 swg (0.9mm) B.S.C. colour coat plastisol (plastic coated steel). The standard colour shall be Goosewing Grey (BS 10A05). The inner panel skin shall be manufactured from 22 swg (0.7mm) Z2 hot dip galvanised steel. The cavity shall be packed with slab rockwool insulation, with a density of 45kg/m³ (thermal conductivity of 0.035 W/mK), compressed between the inner and outer skins, to form a panel with excellent thermal and acoustic properties. On units large enough for internal access the floor panels shall have reinforced insulation to facilitate maintenance access.
Internal floor panels are to be welded in place. All other panels shall be flush mounted into the unit frame and be fully removable.
Access doors shall be provided to areas of regular maintenance. Door furniture shall be either hinged or lift off operation.
All panels shall be located on closed cell neoprene acoustic gaskets, about their perimeter.
