As the seasons shift, facility managers need to ensure their HVAC systems are ready for changing demands. The swing season may require heating and cooling on any given day, or may require heating or cooling on alternate days. A well-conceived and executed seasonal changeover plan is essential to optimizing energy efficiency, preventing costly failures and repairs, and ensuring occupant comfort through this dynamic time of the year.

Key HVAC Changeover Tasks

  • Dual temp systems – Verify functionality of changeover valves
  • Test chilled water system equipment (if applicable)
  • Test heating hot water system equipment
  • Verify operation of cooling tower fans, heat trace and sump heaters
  • Test glycol concentration levels or drain chilled water coils to ensure proper freeze protection
  • Verify operation of steam traps
  • Monitor/change air filters to reduce energy waste
  • Ensure bird screens are clear of leaves and debris

Key BAS Changeover Tasks

  • Verify accuracy of all inputs using NIST calibrated handheld sensor
  • Verify functionality of all output devices – relays, actuators, etc.
  • Verify operation of economizer cycle for free cooling during fall/winter/spring operation
  • Verify operation of heating and cooling valves
  • Verify accuracy of outdoor air temperature and humidity sensors
  • Verify freezestat settings and operation
  • Verify critical system alarm delivery

Contact us to discuss building service options

Our service technicians regularly provide preventative maintenance to protect and optimize buildings with a proactive changeover checklist.

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