Condensate Drainage Planner
Estimate condensate generation, peak drain flow and collection volume from latent cooling load.
Method and limits
L/h = latent_kW × 3600 / 2450 with h_fg = 2,450 kJ/kg and ρ = 1 kg/L. Design L/h = L/h × safety factor; design L/min = design L/h / 60; volume L = design L/h × drainage hours. Sensible load is not in the rate. Confirm coil latent performance, trap, slope, freeze protection and local code before installation.
Formulas, source and scope
Condensate L/h = latent_kW × 3600 / 2450 with h_fg = 2,450 kJ/kg and ρ = 1 kg/L. Design L/h = L/h × safety factor. Design L/min = design L/h / 60. Volume L = design L/h × drainage hours. Multiplying kW by 1000 before dividing by 2450 is the wrong unit path and is not used.
Formula source: site methodology / engineering assumption in this repository. No standard edition is pinned for this tool.
FAQ
What do the default 10 kW, 1 h and 1.25 inputs return?
Base rate 14.6939 L/h, design 18.3673 L/h, 0.30612 L/min, and 18.3673 L collected in 1 h. Sensible load is not used in the rate.
Should I use this for a drain-pan specification?
No. Confirm latent performance, trap, slope, freeze protection and the latent-heat unit before installation. The displayed rate follows the current engine.