Trane Performance Air Handlers Manual de instalación descargar pdf (Pagina 94)

94 CAH-SVX01B-EN

Routine Maintenance

Providing a moisture purge cycle 15 to 30 minutes after shutdown disperses the cold, humid air

inside the air-handling system more evenly throughout the building. This four-step cycle:

• Closes the outdoor air dampers.

• Turns off the cooling coil.

• Opens any variable-air-volume terminals connected to the air handler.

• Operates the supply fan for 10 to 15 minutes.

Air movement discourages water condensation and hastens re-evaporation of any condensate that

does happen to form. This simple preventative measure effectively combats microbial growth and

curbs moisture-related deterioration of air-handling components.

Internal Insulation

NOTICE

Microbial Growth!

Wet interior unit insulation can become an amplification site for microbial growth (mold), which

may cause odors and damage to the equipment and building materials. If there is evidence of

microbial growth on the interior insulation, the insulation should be removed and replaced prior

to operating the system.

The process of cooling and dehumidification produces condensate that must be continuously

removed from the air-handling unit. The section of the unit from the entering air side of the cooling

coil to the leaving edge of the drain pan is considered to be the “wet” section of the unit. Other

potentially “wet” sections are immediately downstream of a humidifier and/or an outside air intake

section.

Internal insulation in areas of the unit that are normally considered to be “dry” must also be

periodically inspected to ensure the insulation is clean and dry. Wet insulation in an area that is

normally considered to be “dry” can indicate an operational problem (refer to “Troubleshooting”

on page 98 for further information). The equipment should be inspected a minimum of every six

months or more frequently as operating experience dictates.

Accumulated dirt and other organic matter exposed to water or extended periods of high relative

humidity (60 percent or higher) can support microbial growth, which must be removed to prevent

the unit from becoming a contaminant source.

If evidence of contamination exists in either the wet or dry sections:

• Determine and eliminate the cause.

• Remove the contamination.

• Sanitize the affected area.

See “Troubleshooting” on page 98 for assistance in identifying the cause.

 WARNING

Hazardous Voltage!

Disconnect all electric power, including remote disconnects before servicing. Follow proper

lockout/tagout procedures to ensure the power can not be inadvertently energized. Failure to

disconnect power before servicing could result in death or serious injury.

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Trane Performance Air Handlers Manual de instalación Pagina 94