Replacement Installation; Common Installation Practices - Lennox iComfort M30 Installation And Setup Manual

Replacement Installation

Use the following two steps to replace an existing
thermostat.
1. Remove existing thermostat.
2. Note the wire colors and what terminals they are
connected for future reference.

Common Installation Practices

1. Use the provided wall plate as a template on
where to drill the mounting holes.
NOTE: Installation of wall plate is optional. Use
a field-provided level to allow for proper
alignment.
2. Drill 3/16" (5 mm) holes in wall for provided
wall anchors. Insert provided wall anchors into
drilled holes.
3. Remove back plate from main thermostat
assembly using a flat-head screw driver.
4. Route thermostat and outdoor temperature
sensor (optional) wiring from wall through
center openings on wall plate (use is optional)
and back plate.
Run thermostat wire
through openings
5. Secure back plate and wall plate (optional) to
wall with the two provided mounting screws.
Screw
6
Wall Plate (optional)
Thermostat
Back Plate
Wall Plate (optional)
Thermostat
Back Plate