Cooling Season Tips

Test your cooling systems

Make sure all of your systems are ready for start-up, turn on all your systems and confirm everything is ready for when the hot weather arrives.

• Check cooling systems, chillers, cooling towers, and rooftop units.
• Implement a contingency plan (back up systems, and staff preparation)

Use the ultrasonic flow meter to check flow rate of your chiller, as well as the return and supply water temperature.

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Clean or Clear Ducts and Filters

Visual inspection with video borescope

• Use the video borescope to see a visual of those hard to reach places where maintenance may be required.
• Check your air ducts for dirt build up.
• Change and clean your filters.

Confirm your HVAC system is balanced

Confirm temperatures and air flow with an infrared thermometer and a balometer in order to address the following:

• Air flow temperature at discharge diffusers.
• Make sure you are not losing ventilation somewhere along your system, (due to air leaks at elbow connections).
• Confirm you are providing adequate CFM per occupant in spaces such as auditoriums or conference rooms.

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Ventilation and CO2 concentration

Monitor your CO2 levels to make sure adequate ventilation is being provided to every space.

• Understand how many occupants are in your work space at a given time.
• Prevent high CO2 levels from causing occupants to feel drowsy or sleepy.
• Identify if you are over or under ventilating your spaces.

A suggestion of 20 CFM per person of outside air and good mixing of indoor air can help maintain a CO2 level of 800 ppm in a given space.

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