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Installation Guide
Air Quality
GWN Series
TM
Product Diagram
Relay Setpoint Selection Switch
(see the applicable AGxx sensor
installation guide for setpoint
information)
Pin Connector for AGxx gas sensor
An AGxx sensor is required for GWN
operation. Sensors are sold separately.
Voltage Output
Selection Switch
(Not present on mA/relay
or relay only models)
OUTPUT
5V 10V
SETPOINT
LO HI
LED Indicators
left - red
center - yellow
right - green
The voltage output selection switch is only available on voltage output models. For mA/relay output and relay only models, this
space is empty.
Use the relay setpoint selection switch to select either the high or low levels of the low setpoint. These values vary among the
available AGxx sensors. See the applicable AGxx sensor installation guide for more information about relay setpoint options.
The LED indicators allow determination of device status at a glance. The GWN includes a light blocking insert that can be set in
place of the light pipes if this visibility is not desired.
LED Blink Codes
LED
Description
Yellow
• Off during normal conditions.
• On solid when the low setpoint is reached.
• 1 flash every 10 seconds if possible sensor damage is detected.
• 2 flashes every 10 seconds if the sensor requires replacement.
• 4 or more flashes every 10 seconds if internal problems are detected, such as if the unit needs servicing or if the operating
temperature is out of range.
Green
• On solid during normal operation.
Red
• Off during normal conditions.
• On solid when the high setpoint is reached.
• Flashes continuously when the sensor reading is over range.
All LEDs
• Flash once when the device is initially powered.
• Flash while the platform is auto-resetting, such as when a sensor is installed.
