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I was recently reminded that, although it is imperative to follow the commissioning scope of work as outlined in the fee proposal and RFP to ensure the owner is getting what they have requested, it is equally important to keep your eyes open to other influences/loads on the mechanical systems. Cold temperatures really test HVAC systems, but sometimes it’s not the HVAC itself that’s the problem. I’ve outlined some common chilly culprits culprits below:
1. Doors – Verify the entrance and exit doors set up and are functioning properly. If there are separate entrance and exit doors from a common vestibule, ensure both doors are not opening at the same time. If the doors are automatic, check that the operating switch is set correctly. Where revolving doors are installed, try to encourage the traffic flow through the revolving doors and not through the single man doors.
2. Location – Ensure that heat generating equipment is not located close to space sensors and thermostats, creating a false load on the system.
3. The space itself – Where a space sensor or thermostat serves more than one office or a large area, ensure occupants don’t have portable space heaters creating a false load and causing discomfort for all occupants.
4. Occupants – Granted this is a difficult one to address – but are the occupants dressed for the season? We have responded to many cold complaints, only to find the occupants dressed in short sleeves during the winter.
There are many sources outside of the HVAC system itself which may cause difficulties for your HVAC system and occupant comfort. Being aware of the tips above might help you solve an easy problem, but should you continue to have HVAC problems, don’t hesitate to contact us to help you solve the more difficult problems you may be experiencing this long, cold winter.