Preventive Maintenance Checklist: AIR HANDLING UNIT (DIRECT DRIVE) - Semi-Annual

• Site conducted

• Conducted on

  Date

• Prepared by

• Location

• Work Order Number

(T)ools, (S)afety Equipment and (M)aterials

• Mechanics tool set

  Yes

  No

  N/A

• Vacuum and cleaning materials

  Yes

  No

  N/A

• Biocide strips

  Yes

  No

  N/A

• Replacement filters

  Yes

  No

  N/A

Safety Guidelines

• Schedule work with operating personnel

  Yes

  No

  N/A

• Follow site safety rules for lockout and tagout

  Yes

  No

  N/A

• Review and follow manufacturer OM instructions

  Yes

  No

  N/A

• Record equipment damage or deficiencies

  Yes

  No

  N/A

• Follow safety and environmental procedures for handling refrigerants (DX units only)

  Yes

  No

  N/A

• Record results in the equipment history log.

  Yes

  No

  N/A

Maintenance Procedures

• Check, clean, and adjust grills, dampers, vanes, linkages as required

  Yes

  No

  N/A

• Check filters and change if necessary (pre-filters only on chem/bio units)

  Yes

  No

  N/A

• Inspect air hoods and louvers for damage and debris

  Yes

  No

  N/A

• Inspect bird screens for damage and debris. Remove dead birds

  Yes

  No

  N/A

• Inspect mist eliminators for damage, dirt and debris

  Yes

  No

  N/A

• Ensure condensate drain lines are clear and free running. Service condensate pumps, if equipped. Treat condensate pans with an EPA approved biocide

  Yes

  No

  N/A

• Check temperatures and pressures

  Yes

  No

  N/A

• Check for unusual noise, vibration or leakage

  Yes

  No

  N/A

• Restore to service

  Yes

  No

  N/A

• Clean up work area and remove trash

  Yes

  No

  N/A

Maintenance Hours

• Estimated time spent on this work order?