Typical
Thermostat
RS
RS+5
RS-GND
Blue
Orange
Brown
Outdoor Sensor
DOWN
RS
RS-GND
RS+5
OUTDOOR INSTALLATION Perform the following procedures to install the sensor:
1. Cut a 1 x 2½-in. mounting hole in the wall.
2. Attach the mounting plate to the wall. If the Outdoor Sensor is mounted on a
rough surface, it is recommended that silicon rubber sealant be used around the
entire edge of the mounting plate.
If mounting on an electrical junction box, be
sure the seal between the junction box and sensor mounting plate is tight.
INDOOR INSTALLATION Perform the following procedures to install the sensor:
1. Place the Outdoor Sensor wall plate on the wall. Mark the
mounting screw holes on the wall through the holes in
the wall plate.
2. Drill two 3/16-in. mounting holes in the wall in the location
marked in Step 1.
3. Mount the Outdoor Sensor wall plate to the wall with the
screws provided.
Sensor Installation
Sensor Wiring
DOWN
RS
RS-GND
RS+5
Screw
hole
Screw
hole
The connection between the Outdoor Sensor and the
thermostat must be wired per the connection diagram.
Only three conductors are used, therefore the extra
conductors should be cut from each end of the cable to
prevent shorting. Follow the color coding as shown.
WARNING
Turn off power to the thermostat before wiring. Death
or injury from electric shock could result.
©Venstar Inc. 08/07
P/N 88-623 Rev. 1
DIGITAL OUTDOOR
TEMPERATURE SENSOR
ACC0400
MODEL
