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Cleanroom HVAC and Air Handling Equipment
Chilled-Water Cooling Coil
A deep-row finned coil that cools and dehumidifies cleanroom air using centrally supplied chilled water and controlled condensate drainage.
- Sensible and Latent Cooling
- Hydrophilic Fin Surface
- Insulated Water Headers
- Stainless Condensate Drainage
Product Introduction
Chilled water circulates through multiple copper-tube rows while warm air crosses blue hydrophilic aluminum fins. When the fin temperature drops below dew point, moisture condenses and drains into a stainless pan beneath the coil. Counterflow circuiting, sufficient face area and controlled fin spacing balance latent performance, water velocity and air pressure drop for cleanroom humidity control.
Key Features
Hydrophilic fin treatment encourages condensate to form a thin draining film instead of bridging between fins.
Insulated supply and return headers limit external sweating in the AHU casing.
A sloped stainless drain pan captures condensate and exposes the drain outlet for cleaning.
Customer Product Concerns
Cooling coils must remove moisture without carrying droplets downstream or creating stagnant condensate zones.
High face velocity pulls condensate off the coil into downstream filters.Adequate face area and an optional droplet eliminator keep carryover below the design airflow.
Water retained between fins supports fouling and odor.Hydrophilic coating and a properly pitched coil encourage rapid drainage into the pan.
Uninsulated headers sweat outside the drain-pan footprint.Closed-cell header insulation directs any surface moisture toward contained drainage areas.
Poor circuit balance leaves warm streaks in supply air.Matched circuits and full-width headers distribute chilled water uniformly across the face.
Typical Applications
Pharmaceutical cleanroom air handlersLow-dew-point make-up air unitsElectronics manufacturing HVACHospital surgical-suite AHUsLaboratory humidity control
Technical Parameters
Typical physical construction ranges for a cleanroom chilled-water coil are summarized below.
| Core Material | Copper tubes with blue hydrophilic aluminum fins and insulated copper headers |
|---|---|
| Panel Thickness | 1.5-2.0 mm stainless or galvanized coil casing |
| Effective Width | 400-3000 mm active fin face width |
| Maximum Length | Up to 4200 mm overall coil and drain-pan length |
| Steel Facing Thickness | 1.0-1.5 mm 304 stainless condensate pan |
| Core Density | Base-metal density approximately 2730 kg/m³ for the hydrophilic-coated 3003 aluminum cooling fins |
| Thermal Conductivity | Base-metal thermal conductivity approximately 193 W/(m·K) for the coated aluminum cooling fins |
| Surface Finish | Blue hydrophilic-coated aluminum fins with stainless drain pan |
| Joint Type | Brazed copper circuits in flanged casing with threaded or flanged headers and welded drain pan |
| Customization | Available based on the intended application and operating environment. |
Available Options
Four to twelve tube rowsHydrophilic, epoxy or corrosion-resistant fin coatingStainless casing and double-slope drain panMoisture eliminator and insulated header enclosure
Planning a Chilled-Water Cooling Coil specification?
Send us your dimensions, installation conditions, performance targets and required surface finish.
