Trane Performance Air Handlers Manual de instalación descargar pdf (Pagina 54)

54 CAH-SVX01B-EN

Coil Piping and Connections

Drain Pan Trapping

 WARNING

No Step Surface!

Do not walk on the sheet metal drain pan. Walking on the drain pan could cause the supporting

metal to collapse. Failure of the drain pan could result in death or serious injury.

Threaded condensate drain connections are provided on only one side of the coil section. Pitch the

connection lines horizontal or downward toward an open drain. Trane recommends installing a

plug to facilitate cleaning of the trap.

Figure 50 illustrates the proper trapping, piping, and operation of the trap for negative pressure

sections. Use the formula under the figure to determine the correct minimum depth for the

condensate trap.

Figure 51 illustrates the proper trapping, piping, and operation of the trap for positive pressure

sections.

Note: Positive pressure traps require a different design than negative pressure traps.

If a section has a drain pan for cleaning purposes only, it does not need a trap; however, a cap or

shutoff valve should be installed on the drain connection. Only sections handling condensate, such

as a cooling coil section or moisture eliminator section, require a trap.

NOTICE

Water Damage!

When more than one section has a drain pain, trap each section individually. Connecting all

drains to a common line with only one trap can result in condensate retention and possible

water damage to the air handler or adjoining space.

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Trane Performance Air Handlers Manual de instalación Pagina 54