BS 5141-1:1975

This standard BS 5141-1:1975 Specification for air heating and cooling coils is classified in these ICS categories:

• 91.140.30 Ventilation and air-conditioning systems

This standard gives a method of testing for rating of duct-mounted air cooling coils, with chilled water as the cooling medium, within the following range of variables:

• Inlet air temperature: below 40 °C
• Inlet water temperature: 2 °C to 20 °C
• Inlet air wet bulb depression: greater than 4 °C
• Sensible heat ratio (Q_s/Q_T): less than 0.8 (for dehumidifying coils)
• Water flow: Reynolds number above 3 100
• Air velocity at coil face: 1 m/s to 4 m/s

Duct-mounted cooling coil rating test with chilled water as the cooling medium within specified ranges of variables for inlet air and water temperatures and for water flow and air velocity.