Honeywell IAQPoint2 Technical Manual page 33

This screen permits changing the function of channel two� For example, a certain
monitor might be in an environment with a CO
scale) and a temperature of 77°F (half scale)� If the channel 2 function is set to
temperature, the 12 mA/6 V (temperature) signal will be produced by channel 2�
But if the channel 2 function is set to CO
produced by channel 2� This feature works in a similar fashion if a VOC sensor is
fitted� It has no effect on the operation of channels 1 or 3� This facilitates getting
from a single monitor both current and voltage signals that are proportional to the
CO concentration�
2
Configure menu > Configure Outputs > Set Occupied Timeout
Set Occupied Timeout controls the delay between when the HVAC system is given
the command to deactivate and when it actually shuts down� Available values
vary from one minute to two hours in six steps� The occupied timer starts running
whenever the [Occ] button on the main screen is pressed� (The [Occ] button is
hidden by default but can be shown via Configure > Configure Display > Main
Display Datase t�) The timer drives the "occupied" icon ( ) on the main screen, a
fieldbus output, and can be configured to drive the relay� (The relay is configured
via the Configure > Configure Outputs > Set Relay Source screen�)
The relay flow of the IAQPoint2 air quality monitor is shown in this illustration�
-
Gas Sensor Value
Screen Configure / Configure
+
Setpoints / Set Gas Setpoint
Screen Configure / Configure
Setpoints / Set Gas Hyst
Gas Sensor Fault
Screen Configure / Configure
Output / Set Occupied Timeout
Home Screen
reset
'Occ' softkey
Figure 22. IAQPoint2 relay flow
concentration of 5000 ppm (full
2
, the 20 mA/10 V (the CO
2
Screen Configure / Configure Outputs
and
/ Set Relay
not
Gas Conc.
Fieldbus
Occ Tmr
Countdown
Q
Timer
"Occupied"
icon
IAQPoint2
signal) will be
2
Relay
Coil
31