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5
To install your thermostat on the wall, you'll need a square 4"x4"
back box with a single mud ring (also called plaster ring).
Opening the thermostat
1. Separate the front housing of thermostat as shown on the
picture.
2. Unscrew both closing screws (at the bottom) until they don't
turn any further.
3. Release front housing by gripping lower half of outer frame
and pulling outwards then upwards. Place front housing
somewhere safe.
Placing the back box
1. Open the back box and create openings by pushing one or two
holes.
2. Place the rear part into the wall where you've chosen to place
the thermostat.
3. With 2 screws, secure the back of the 3iE to the face of the
electrical box (see picture on opposite page).
Connecting wires
1. Attach the sensor wires into the thermostat following the
instructions on page 8.
2. Check to ensure that you have all the following wires
connected to the back panel of the thermostat:
- Power lead (Line 1 and Line 2 )
- Heater wire (Line 1 and Line 2)
- Floor sensor
- External/ 2nd floor Sensor (if necessary)
3. Complete wiring as explained on the following pages.
4. Pull wires into the electrical box.
INSTALLATION
4-inch square back box
