- Where possible, HVAC system shutbacks should be disabled to allow 24/7 HVAC system operation.
- Must Do: Existing UV disinfection systems in campus HVAC units should be checked to ensure they are operating correctly.
- Facilities Management should evaluate HVAC systems to consider implementing the following recommendations where feasible:
- Where equipment capabilities permit, HVAC air filter efficiency should be increased to MERV 13 or the maximum MERV rating suggested by the manufacturer.
- Where equipment capabilities permit, outside air ventilation should be increased to the maximum level possible (where acceptable indoor air temperature and humidity can still be maintained) in order to reduce the amount of recirculated air in campus buildings.
- For dedicated outside air systems with rotary energy recovery wheels (e.g., enthalpy or sensible wheels), consider turning off the energy recovery wheels to limit cross contamination at the wheel.
- Energy recovery systems with purge and or potential for air leak from the exhaust side to the supply side should be checked to eliminate air leaks.
- Passive energy recovery devices such as heat pipes, run around loops, and wrap around heat pipes where there is no carry over/leak from the exhaust air can run as originally designed.
- Where feasible and justified by available data, the installation of new UV disinfection systems in HVAC units should be considered.