Condensate Drain Pipe U Trap Calculation

Current drain systems condensate drain systems accepted as the industry standard include water traps like the one shown in figure 2.

Condensate drain pipe u trap calculation.

Where the drainpipes from more than one unit are manifolded together for condensate drainage the pipe or tubing shall be sized in accordance with table 307 2 2. 2015 imc dictates a 1 minimum pitch of the drain which is equal to 1 8 inch fall for every 12 feet of horizontal run. W c 1 2 in. Use table 307 2 2 for condensate pipe sizing.

Properly designed and maintained trapped systems can provide successful condensate drainage. For steam mains drainage the condensate load for each drain trap is typically 1 of the steam capacity of the main based on drain points at 50 m intervals and with good insulation. Wherever practical it is safer to use inch of fall per foot to ensure proper drainage. A 1 x total static drain pipe diameter 2 3.

Trap for blow thru unit fan running and condensate beginning to drain away. Check the local building or plumbing code for the proper requirements for your area. Internal diameter and shall not decrease in size from the drain pan connection to the place of condensate disposal. Minimum condensate drain pan figure 5.

Condensate traps h fan outlet pressure in. Minimum sea level with fan on fan outlet pressure recommendation. Condensate line could freeze. For most drain points sizing the trap to pass twice the running load at the working pressure minus any backpressure will allow it to cope with the start up load.

Recommended use of tees and plugs. Slope to drain hand tight plug from coil pan hand ti gh plu water seal figure 6. B x total static drain pipe diameter 1 4. However within the industry there is no definition of what constitutes proper or acceptable design.

Listed internal static return external static total static at drain 2.