Section 1 - Ventilation
Honeywell Economizers 63-8594-02 4
Symptoms of Inadequate Ventilation
Headaches
Dizziness
Drowsiness
Fatigue
Nausea
Eye Irritation
Respiratory Irritation
Causes of poor indoor air quality are not
always caused by the design of the building.
Poor or improper maintenance such as
outdoor air dampers that are blocked open or
completely closed, defective damper actuators
or incorrectly set or malfunctioning controls
may also cause inadequate ventilation. Many
maintenance people respond to occupant
complaints with only temperature in mind. If
the room is within the acceptable temperature
range of 68 to 78°F. (20 to 26°C) it is
perceived that no adjustments are necessary.
The occupants may have many of the
symptoms listed above but do not have the
knowledge to request “open the outside air
damper” or “increase the volume of supply air
to this room.” It is incumbent on the
knowledgeable HVAC service person to
recognize inadequate ventilation when it is
encountered.