Honeywell IAQPoint2 Technical Manual page 34

Indoor air quality monitor
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IAQPoint2
Configure menu > Configure Outputs > Set Relay Source
The functions of the relay are adjusted at this screen� The monitor normally
responds to gas concentrations (i�e�, the air quality level)� The Set Relay Source
feature allows a relay to respond to the occupied timer or, for digital versions, to
the network (fieldbus, for example, in BACnet systems)� The default selection is air
quality level�
By default, the relay energizes when the gas concentration is lower than the
setpoint� However, this screen also facilitates configuring the relay to respond
to fieldbus inputs (and thus become a general purpose output)� This screen can
configure the relay to energize whenever the occupied timer is running as well� In
this mode the button plus relay function as a classic "override" input –the relay can
be hardwired to a universal input on a building automation controller� Figure 16
illustrates the operation of the relay�
Configure menu > Outputs submenu > Automatic Baseline
The internal CO
sensor can apply continuous, slow fine-tuning so that the
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minimum observed concentration is reported as 400 ppm, which is the approximate
atmospheric concentration of carbon dioxide� This automatic baseline feature
is enabled by default and, in most situations, eliminates the need for periodic
calibration� However, it requires that the environment be unoccupied regularly so
that the internal CO
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the automatic baseline feature inappropriate for buildings such as hospitals or
greenhouses which have CO
After the automatic baseline setting is changed, power to the monitor must be
removed briefly for correct operation (a soft reboot is insufficient)� This can be
accomplished by loosening the screws and briefly disconnecting the monitor from
the backplate�
The Automatic Baseline screen is not accessible if the monitor has a VOC sensor�
Configure > Configure Display
Configure Display
Main Disp. Dataset
Idle Behavior: Dim
Temp. Units: F
Easy Temp Adj: Off
Temp Units is available only for monitors with temperature/humidity sensors�
Easy Temp Adj is available for digital monitors and those fitted with temperature/
humidity sensors�
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concentration falls to atmospheric levels� (This would make
generation around the clock�)
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