--- title: "Chilled Water Coils — Bespoke UK Manufacturer | HC Coils" description: "Bespoke chilled water coils for AHUs, fan coil units, CRAH units and process cooling. Built to your duty and specification. UK manufactured." lang: en json-ld: | [ { "@context": "https://schema.org", "@type": "Product", "name": "Chilled Water Coils", "description": "Bespoke chilled water coils for AHUs, fan coil units, CRAH units and process cooling. Built to your duty and specification. 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[Home](/) 2. [Products](/products/) 3. [Heat Exchange Coils](/products/heat-exchange-coils/) 4. Chilled Water Coils ![Bespoke Chilled Water Coils manufactured by HC Coils](/assets/cwc-hero-CmXvYAaS.jpg) # Chilled Water Coils For AHUs, fan coil units, CRAH units and process cooling. Bespoke to your duty and space constraints. [Get Engineering Advice]()[Request a Quote]() PED Compliant Technical Specifications Fluid Water / Glycol / CoolFlow DTX Flow Temp. 6/12°C typical Fin Material Al, AluP, Cu, Cu-ET Tube Material Copper Connections BSP / PN16 Flanged ## Air Conditioning & Process Cooling Applications Our chilled water air cooling coils are designed for high-performance air conditioning and process cooling systems. They are suitable for use with ethylene glycol or propylene glycol solutions, making them ideal for low-temperature applications. These coils are engineered to integrate seamlessly with ducting, plenums, and air handling units, and can be manufactured in virtually any size to meet project-specific requirements. ### Optimal Performance Each coil is individually selected using advanced computer-based selection software to ensure: - Optimised thermal performance - Low air pressure drop - High system efficiency ### Specification All coils are manufactured to high engineering standards using premium materials: - Seamless drawn copper tubes to EN12735-2 - Mechanically expanded aluminium fins with die-formed self-spacing collars - Copper return bends and tubular copper headers, silver brazed for durability - BSP(M) flow and return connections - Integrated air vents and drain connections The casing is constructed from heavy gauge galvanised sheet steel to ensure rigidity and long service life. Tube end plates feature die-formed collared holes to accommodate thermal expansion and contraction without damage. Standard drain trays are supplied, vee-formed with air baffles to prevent air bypass and fitted with BSP(M) drain connections. Alternatively, perforated base plates can be provided for connection to customer-supplied drain trays. ### Moisture Carryover Control Water carryover (condensate blow-off) can occur due to factors such as face velocity, fin spacing, fin height, and latent cooling conditions (SHR). Systems with high fresh air content are particularly susceptible. To minimise issues, downstream drainage is recommended, and moisture eliminators can be fitted where required. When installed, an additional coil depth of at least 180 mm should be allowed. Intermediate drain pans can also be incorporated within coil blocks to prevent condensate build-up in lower fin sections. ### Condensate Drainage & Trapping Correct condensate drainage is essential to prevent flooding or air blow-back into the drain pan. Proper trapping must be installed in accordance with system static pressure requirements. ### Modular Construction & Stacking For large installations, coils can be supplied in multiple sections for easier handling. Each section is fitted with its own drain pan, with provisions for condensate drainage into a main collection tray where required. ![Bespoke chilled water coil with aluminium fins and copper headers](/assets/cwc-cutout-DIazSLsG.jpg) ### Key Advantages - **Low pressure drop —** coil geometry selected to minimise fan and pump loads. - **Any geometry —** all sizes, row depths, connection positions and handing options. - **Material options —** copper tubes with aluminium, copper, tinned copper or coated fins. - **Quotations —** most returned within 24 hours with selection data. ### Optional Features **Fin Material** — available in plain copper, tinned copper, or polyester coated aluminium for corrosive environments. **Tube & Fin** — 1/2" O.D. tube with fin spacing from 4.2 mm to 2.1 mm. 5/8" O.D. tube with fin spacing from 6.0 mm to 2.1 mm. **Sloping Removable Drains** — for easy cleaning. **Moisture Eliminators** — to reduce condensate carryover. Typical Applications AHUs Duct Mounted Coils Process Cooling Healthcare Cleanrooms ![Bespoke chilled water coil with copper headers and aluminium fin block](/assets/cwc-coil-2-CaUaotqO.jpg)![Long bespoke chilled water coil with galvanised casing in the HC Coils workshop](/assets/cwc-coil-1-h-sEcjSn.jpg)![Bespoke chilled water coil with copper return bends and aluminium fins](/assets/cwc-coil-3-BCWMFq4W.jpg) [Get Engineering Advice on Chilled Water Coils]() Downloads Product Catalogue Full specifications, dimensions and performance data. [Download PDF](/catalogues/coils.pdf) Operation & Maintenance Manuals Installation, commissioning and maintenance instructions. [Download O&M](/manuals/chilled-water-cooling-coils-om.pdf) Standards & Accreditations All our products meet exceptional standards, achieved by testing and inspecting our coils and products regularly and adhering to strict procedures. [Learn More](/about/certifications-compliance/) ## What Our Clients Say > At Sovereign Air Movement Ltd we have used H&C Coils for over 25 years now. Very efficient in turning projects round. Quality Coils, competitive prices along with very good lead times. Kevin Sovereign Air Movement Ltd > When a cooler failed on site, HC Coils delivered a new custom replacement. They understood our requirements and got us back on track without delay. James T Facilities Manager — Data Centre Common Questions — Chilled Water Coils ### What applications are chilled water coils used for? Air handling units (AHUs), fan coil units, computer room air handlers (CRAHs), cleanrooms, data centres and process cooling systems. ### What fluid types can be used? ### How do I maintain a chilled water coil? ### Can you improve the performance of an existing chilled water coil? ### What types of heat exchange coil do you manufacture? ### What tube and fin configurations are available? Not Sure Which Product? Talk to our engineering team — we'll help you find the right solution. 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