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Q-ETS3 / STHERR101 SETUP AND CONFIGURATION
Q-ETS3, WireLink™ or the STHERR101, RadioLink® thermostat interface stations provide bi-
directional communication between a Vantage control system and the HVAC system. Any button or
time control using InFusion Design Center or QLink software can be programmed to change
Setpoints, Mode, Fan and Occupied/Unoccupied mode on any thermostat. Current Setpoints,
Indoor/Outdoor temperatures, Mode, Fan (status) and Occupied/Unoccupied (status) may be
displayed on Vantage LCD stations. A Vantage Q-ETS3 or STHERR101 station and a Vantage
thermostat are used together to control HVAC systems.
NOTE: The thermostat will work with the current Q-ETS3-WireLink or STHERR101-RadioLink. The
thermostat will also work with newer versions of the Q-ETS3 or STHERR101 when they become
available (part numbers may change).
System Requirements
Each Vantage thermostat requires one Q-ETS3 or STHERR101:
Specifications Q-ETS3 WireLink STHERR101 RadioLink
Dimensions HWD 3” x 1” x 0.375” 76mm x 25mm x 10mm 4.5” x 1.5” x 0.75” 114mm x 38mm x 19mm
Weight 0.8oz - 23g 1.4oz - 40g
Station Power connections 24Volt AC from thermostat base 24Volt AC from thermostat base
Station Count Design Center
0.36W on IC-24V
0.54W on IC-36V*
1 RadioLink Station
Station Count QLink 1 WireLink Station 1 RadioLink Station
Status LED Indicator Yes Yes
Ambient Operating Temperature 32-95°F -or- 0-35°C
Ambient Operating Humidity 5-95% non-condensing
*CAUTION: 36V stations have a symbol on the Serial Number sticker. Any Q-ETS3, not
displaying this symbol, should not be connected to a 36Volt Station Bus.
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